Two-component reactive surgical filling material mixing and dosing device

FIELD: medicine.

SUBSTANCE: invention refers to systems for applying a filling material onto a working surface and can be used for applying a multicomponent compound, such as a surgical filling material for a tissue mass. A mixture feed device comprises a Luer mandrel sub-assembly, a cannula and a nozzle atomiser sub-assembly. The Luer mandrel sub-assembly is formed to contact at least two containers and forms the first and second fluid pipes of the mandrel for facilitating the flow of the first and second components. The cannula comprises the first and second cavities carrying the fluid. Each cavity is fluid connected to one of the first or second fluid pipes of the mandrel. The nozzle atomiser sub-assembly is arranged at the end of the cannula and involves at least a part of a nozzle insert placed into a nozzle cap. The nozzle cap has an end wall with an outlet therein. The nozzle insert and nozzle cap form at least three feed channels and are configured to limit at least three fluid passages in three respective feed channels. Each of the three feed channels is fluid connected to the fluid passage.

EFFECT: more effective mixing of the components, prevented cross-contamination of the components and facilitated fluid feed.

12 cl, 25 dwg

 

Area of technology

[0001] the Present invention relates primarily to systems applying filling material to the working surface and, in particular, to an apparatus for mixing and applying multi-component composition, such as surgical restorative material for tissue masses composed of two fluid components in biological tissue using a device that facilitates the controlled spray application of the filling material.

Summary of the invention

[0002] In conventional applicators for mixing and applying multi-component composition to biological tissue to obtain a given composition it is necessary to mix two components, often immediately before applying the composition. However, just before the components come into contact, they often react or at least begin to react, forming a very viscous fibrin material, which greatly increases the plugging of the applicator. Conventional devices and applicators usually form aerosols, in which the composite fluid to come into contact immediately before you exit the spray tip applicator, or have interchangeable tips.

[0003] the Device of the present invention provides such channels that only dose of a two component fluid comes into to�of intact and mixed, when they move to a spray nozzle of the applicator. Then all three of the flow, the flow of the mixture and separate streams, each sent to a separate supply channels that carry all threads fluids together at the last possible moment in a rotating chamber.

[0004] more specifically, the device of the present invention is particularly useful for mixing and applying onto the surface of multi-component compositions such as two-component surgical filling materials, at the same time without clogging, preventing cross-contamination of components, to the point of intentional mixing device in a place that is in close proximity to the opening for applying the end cap, reducing the pressure drop in the device and system to facilitate the flow of the fluid and increasing the efficiency of mixing of the components. It should be borne in mind that not all of these benefits should be achieved with the device for mixing and dosing, made in accordance with the present invention.

[0005] a Device for mixing and dosing supports the physical border between all components of the two-component composition to their readiness to initial contact, which is especially desirable for components that are responsive under the influence of�the journey of each other. In the case of surgical filling materials, consisting of several parts, components, such as buffer solution (for example, a diluted solution of hydrogen chloride and a solution of sodium phosphate/sodium carbonate) and the recovered mixture of two synthetic polyethylene glycols (PEG), begin to react with each other almost immediately after the impact each other, so it is desirable to avoid significant premature mixing, leading to clogging, i.e. cross-contamination or "mutual influence" of the components while they are in your device, mixing and dosing. In addition, it is desirable to avoid improper mixing of the components, because failure of the proper mixing of the components may result, for example, to poor mixing and clogging. In addition, preliminary mixing in the desired proportions of each component until all components are mixed together directly prior to application, leads to the formation of an improved mixture.

Brief description of several species, and drawings

[0006] Fig.1 shows a perspective view in parts of sub-node of a spray tip with a cut-out part of the malleable cannula and a variant of the far end of the cannula;

[0007] Fig.2 shows a rear view of the parts of the insertion tip of the subnode spray Nakonechnaya Fig.1, with the insert tip is mainly octagonal form;

[0008] Fig.3 shows a perspective view of a subassembly of the spray tip of Fig.1, illustrating the insertion of the tip into the cap of the tip node and the spray tip and mixed component supplied from the outlet at the far end of the end cap; mixed component shown by lines consisting of solid and empty bubbles, solid bubbles are first mixed component, and the bubbles are empty second Mixable components;

[0009] Fig.4 shows the cross-sectional view of a subassembly of a spray tip, made according to line 4-4 of Fig.3 illustrating the insertion of the tip, holding the first and second Mixable components from premature mixing, when fluid passes from the cannula during the insertion of the tip node and the spray tip;

[0010] Fig.5 is another cross sectional view of a subassembly of a spray tip, made according to line 5-5 of Fig.3, illustrating the angular recess guides the fluid from transferring the fluid channels of the cannula into the gap between the walls of the insertion tip and the end cap;

[0011] Fig.6 is another cross sectional view of a subassembly of a spray tip, made according to line 6-6 of Fig.3, illustration�tion of the fluid, additionally, guided by the channels that carry the fluid to the cannula during insertion of the tip and the end cap;

[0012] Fig.7 is another cross sectional view of a subassembly of a spray tip, made according to line 7-7 of Fig.3 illustrating the fluid directed into the supply channels of the end cap, part of which had been mixed in one feeder, while other fluids will not mix until until the supply channels are not serving the fluid in the region of the impeller;

[0013] Fig.8 is a plan view of the cannula of Fig.1;

[0014] Fig.9 is cross sectional view of the cannula, made along the line 9-9 of Fig.8;

[0015] Fig.10 is cross sectional view of the cannula, made along the line 10-10 of Fig.8;

[0016] Fig.11 is a front view plan of the insertion tip node and the spray tip shown in Fig.1;

[0017] Fig.12 is a perspective view of the insertion tip of Fig.11;

[0018] Fig.13 is a bottom view of the plan of insertion of the tip of Fig.11;

[0019] Fig.14 is a top view in plan of the insertion of the tip of Fig.11;

[0020] Fig.15 is a perspective view of the cap of the tip node and the spray tip shown in Fig.1;

[0021] Fig.16 is a top view in plan of the end cap of Fig.15;

[0022] Fig.17 is cross sectional view made along line 17-17 of Fig.16, the end cap of Fig.11;

[0023] Fig.18 is a plan view from above near ODA�VKI node and the mandrel Luer of the present invention;

[0024] Fig.19 is cross sectional view of the near end of the mandrel of Fig.18, made along the line 19-19 of Fig.18;

[0025] Fig.20 is a perspective view far mandrel node and the mandrel Luer of the present invention;

[0026] Fig.21 is a top view of the far mandrel of Fig.20;

[0027] Fig.22 is cross sectional view made along line 22-22 of Fig.21;

[0028] Fig.23 is an enlarged view of the area indicated by a circle labeled "Fig.23" in Fig.22;

[0029] Fig.24 is an enlarged view of the area indicated by a circle labeled "Fig.24" in Fig.21; and

[0030] Fig.25 is a perspective view of the assembled syringe that can be used with the subassembly of the mandrel Luer cannula and referred to in this document.

Detailed description of preferred embodiments

[0031] Now, with reference to Fig.1-7, the illustrated subnode 318 spray tip of the present invention. More specifically, Fig.1 shows a perspective view in parts of the subnode 318 spray tip of Fig.1 with a cut-out part of the malleable cannula 316. The subnode 318 spray handpiece according to this variant embodiment includes box 348 head that has, for the most part, octagonal far side, with three substantially planar side walls 377a, 377b and 377c and five concave or rounded side walls 377d, 377e, 377f, 377g, 377h. Cap 342 of the tip of the hearth�La 318 spray tip includes a cylindrical wall 373 and end wall 375.

[0032] the Malleable cannula 316 includes four cavity and is preferably malleable cannula 316, extruded from soft thermoplastic polyurethane elastomer such as Pellethane TM company The Dow Chemical Company. Two of these cavities are carrying the fluid cavity 330, 332, each of which may also be located in the message in a fluid environment with the corresponding hole of the channel of the fluid far mandrel node 322 of the mandrel Luer of Fig.18-20. Malleable cannula 316, in addition, includes a third cavity 334, which can be inserted the wire, resulting in improved flexibility of the cannula 316, and a fourth cavity 362, which can be used to accommodate, for example, sparse, injected gas, the washing liquor, the source of light, heat or a fiber optic camera.

[0033] As shown in Fig.1, region 366 of the far end of the malleable cannula 316 includes a pair of elongated slots, where part of the malleable cannula 316 is cut or otherwise severed to open the field 330a and 332a of the semi-cylindrical channel, each of which represents a continuation of one of the respective transporting the fluid cavities 330, 332. Each of the slits passes axially along the malleable cannula 316, from the wall 400 of the far end of the malleable cannula 316 to pornostranky 402, located axially inward (i.e., proximally) from the wall 400 of the far end. Each of the regions 330a, 332a semi-cylindrical channel bounded along its lateral edges combine shelves 404, 406, 408, 410 (also shown in Fig.4 and 5) passing to the outer perimeter of the malleable cannula 316. The third and fourth cavity 334, 362 are shared between shelves 404, 408 and 406, 410 to other parts of the malleable cannula 316 that surround the third and fourth cavity 334, 362, along the slits, and by limiting the field 366a, 366b semi-cylindrical channel, form the protrusion 370 of the malleable cannula 316. The protrusion 370 is included in the corresponding receiving slot 379 (as shown in Fig.2) insert the tip 348.

[0034] the Insert 348 and the tip includes structural features for directing fluid from transferring the fluid cavities 330, 332 of the malleable cannula 316 in the gap between the insert tip 348 and cap 342 of the tip when the insert 348 and the tip is attached to section 366 of the far end of the malleable cannula 316. As shown in Fig.2, these structural features include a pair of arched channels 381, 383 fluid medium, each of which is combined with part of the respective regions 330a, 332a one of the semi-cylindrical channels (Fig.1) cannula 316.

[0035] Fig.11-14 shows additional structural personages�nosti insert tip 348. For example, the insert 348 and the tip also includes a pair mainly wavy wedges (in the form of "Quonset") 412, 414, both of which are shown in Fig.11, in such a way that they are aligned in the axial direction with one of the appropriate vaulted channels 381, 383 fluid. As further shown in Fig.11, each mainly wavy wedge (in the form of "Quonset") 412, 414 has a near-surface 416 that includes rounded 417 or curved or rounded edges. When the protrusion 370 of the malleable cannula 316 communicates with the insert 348 and the tip, each of these mainly wavy wedges (in the form of "Quonset") 412, 414 is part of the respective regions 330a, 332a one of the semi-cylindrical channels closer to the end wall 375 of the cap 342 of the tip. While in this position, the curvature near 417 surfaces 416 wavy wedges (in the form of "Quonset") 412, 414 reject the fluid from transferring the fluid cavity through the arched channels 381, 383 fluid in flow channels enclosed between sickle channels 376, 378 (Fig.14) extending in the axial direction along the outer side of the insert 348 and the tip, and the inner surface 373a of the cylindrical wall 373 of the cap 342 of the tip. Rounded 417 near surfaces 416, in addition, the Assembly process to help guide speaking� 370 malleable cannula 316 in contact with the receiving slot 379 insert tip 348.

[0036] As shown in Fig.15, 16 and 17, the cap 342 of the tip may be provided with an inward combining cavity or recess 420 in the area of the cap 342 of the tip, where the cylindrical wall 373 of the cap 342 of the tip is in contact with the end wall 375 of the cap 342 of the tip. As further shown in Fig.17, corresponding to the inner area of the cap 342 of the tip has an inward-combining the key 422. At the far end of the insertion tip 348 combining an additional keyway 424 (see, e.g., Fig.11 and 12, which is one inwardly combining key 422, when the insert 348 and the tip is included in the cap 342 of the tip. The interaction is oriented inside combining key cap 422 342 of the nozzle with an adjusting groove 424 (Fig.11 and 12) insert 348 tip ensures proper alignment of the cap 342 of the handpiece and insert tip 348.

[0037] As described in detail hereinafter, Fig.4-6 show a series of cross sections through the subnode 318 spray tip, starting with Fig.4 at the interface between the protrusion 370 of the malleable cannula 316 and subnode 318 spray tip, and, continuing to move away, to a place in close proximity to the end wall 375 of the cap 342 of the tip. Fluid components from each of the carrying fluid with�food cavities 330, 332 are held in corresponding semi-cylindrical channels 330a, 332a, in contact with the near surface 416 and rounding 417 wavy wedges (in the form of "Quonset") 412, 414 and are directed radially outward through the arched channels 381, 383 fluid medium (i.e., in a direction radially opposite fluid component from another carrying the fluid cavity 332, 330, which helps to prevent premature mutual influence of fluid components in two carrying the fluid cavities 330, 332). Fluid components then flow along the periphery, the spaces between the flat side walls 377a, 377b and 377c and rounded side walls 377d, 377e, 377g and 377h, mainly octagonal far side of the insertion tip 348 and the inner surface 373a of the cylindrical wall 373 of the cap 342 of the tip.

[0038] As also shown in Fig.1, the cap 342 of the tip region contains 380 impeller with supply channels 394, 396 and 398, leading to it. The supply channels 394, 396, 398, usually have a triangular shape, with sides that taper inwards towards each other, the closer to the center region 380 of the impeller. The decreasing cross-sectional area of the supply channels 394, 396, 398 as they drew nearer to the field 380 of the impeller increases the velocity of fluid components in a tapered nozzle. When tech�Chiyo components are included in the region 380 of the impeller of the three supply channels 394, 396, 398, the effect of turbulence serves to mix the flows of fluids, immediately before the deposition of the mixed components through the outlet 344 of the cap 342 of the tip. An interference fit between the inner surface of the cap 342 of the tip and the end of the insert tip 348 prevents the flow of fluid from one feeder to another, before entering into the region of the impeller 340. Although the supply channels 394, 396 and 398 are shown as completed in the cap 342 of the tip, it appears that the supply channels can be performed in box 348 tip or may have shared parts of the supply channels formed in the end cap and insert the tip.

[0039] Fig.3 is a perspective view of the insertion tip 348 in the cap 342 of the tip of the subnode 318 spray tip. Mixed component is discharged from the outlet opening 344 at the far end of the cap 342 of the tip. Mixed component are shown with an alternative scheme for lines with a solid bubbles and empty bubbles, and the bubbles are solid first component, and the empty bubbles represent the second component. Thus, a component is already mixed together prior to release from the outlet 344. Cap 342 of the handpiece is also provided with an elongated section 345 of the nipple on the far side of the yard�Oh wall 375 of the cap 342 of the tip, intersecting with the outlet 344. This elongated section 345 of the pin is used to force the filling material for tissue mass, formed from the mixed fluid components to be distributed on the fan circuit, thus facilitating the coating on the desired surface of the fabric.

[0040] Fig.4 is cross sectional view of a subassembly of a spray tip, made along the line 4-4 of Fig.3. In the form shown, the protrusion 370 of the cannula 316 and sickle-shaped channels 376 and 378 of the insertion tip 348. Each sickle-shaped channel 376 and 378 carries only one blend component from transferring the fluid cavities 330, 332. In particular, sickle-shaped channel 376 insert 348 and the tip is filled with a solid bubbles, representing the first blend component and sickle-shaped channel 378 insert 348 and the tip filled with empty bubbles, which is the second blend component. At this point sickle channels 376, 378 insertions 342 tip to help maintain the first and second Mixable components from premature mixing, when fluid passes from the malleable cannula 316 in box 348 of the tip of the subnode 318 spray tip.

[0041] Fig.5 is cross sectional view of the subnode 318 spray tip, made along the line 5-5 of Fig.3. Here sickle channels 376, 378 insertions 348 disposable tips�and direct the fluid from the channels 330, 332 carrying the fluid, malleable cannula 316 into the gap between the walls of the insertion tip 348 and the tip cap 342 of the tip. Two miscible component remains separate from each other.

[0042] Fig.6 is cross sectional view of the subnode 318 spray tip, made along the line 6-6 of Fig.3. As shown in this view, the fluid further flows from the channels 330, 332, transporting the fluid, malleable cannula 316 in box 348 grommet and cap tip 342. First mix component indicated by the solid bubbles, now located in space or the first fluid passage A, is made between the essentially flat side walls 377a, 377b and rounded side walls 377g, 377h insert tip 348 and the inner surface 373a of the cylindrical wall 373 of the cap 342 of the tip. Second Mixable component that is marked as empty bubbles, and is in space or the second fluid passage B, made between the essentially flat side walls 377b, 377c and rounded side walls 377d, 377e insert tip 348 and the inner surface 373a of the cylindrical wall 373 of the cap 342 of the tip. The portion indicated by the solid bubbles mix component almost blended with the part marked as empty bubbles mix component in the field of� or the third flow channel between C, substantially planar side wall 377b of the insertion tip 348 and the inner surface 373a of the cap 342 of the tip.

[0043] As shown in Fig.6 and 14, for example, octagonal box 328 tip includes a rounded sections 377a and 377c, passing on each side, substantially planar side wall 377b to rounded lateral walls and 377h 377d, respectively. These rounded sections of the octagonal insert tip 328 are spaced from the inner surface 373a of the cap 34 of the tip, forming a circular transmission channels 350, 352 between the inner surface of the cap 342 octagonal tip and insert the tip 328 and ensuring the correct proportion or dose of each fluid component, suitably guided in the third flow path C, is made between the flattened wall 377b and cap 342 of the tip. More specifically, the first transmit channel 350 is made between the first flow channel and A third flow channel C, and the second transmit channel 352 is made between the second flow channel B and the third flow channel C. These transmission channels 350, 352 between the insert tip 348 and cap 342 of the tip is designed so that the desired dose of each of the first and second mixed components can be derived along the third flow path C of the fluid �thus forming a mixture of the first and second mixed components before entering the supply channel 394. See, for example, Fig.6 and 7.

[0044] more specifically, the configuration of the insertion tip 348 and the tip cap 342 of the tip is such that the three flow passage for three streams of fluid that is created before each of the streams of a fluid medium separately, are included in one of the three supply channels 394, 396 and 398, located in the cap 342 of the tip. An interference fit between the insert 346 tip and cap 342 of the tip prevents mutual influence between the supply channels 394, 396 and 398. The ratio of doses of the mixed components can be controlled in the size of the surface section and the interval of the transmission channels 350, 352 between the insert tip 348 and cap 342 of the tip, so that the desired proportion of the first blend component is only one flow of fluid, the desired proportion of the second Mixable component becomes only the second flow of fluid, and the desired proportion of the remaining doses of the first and second mixed components becomes the third flow of fluid, each of the flows of the fluid previously created separately, comes in three feeding channel 394, 396 and 398. Maintaining isolation of doses of the first and second mixed components and pre-mixing the remaining doses of the first and second mixed components before any component is supplied to the supply channels 394, 396 and 398, mixing optimizied�, not resulting in an increase clogging.

[0045] Fig.7 shows another cross sectional view of the subnode 318 spray tip, this time performed along the line 7-7 of Fig.3. Here fluid is directed into the supply channels 394, 396 and 398. The feeder 394 fluid contains components that have already started to mix with each other, as shown by a combination of solid and empty bubbles of the mixed components in the feeder 394. The feeder 396 contains only empty vials (second) mix component and feeder 398 contains only solid bubbles (first) mixing component. Thus, the two fluid component already began to intermingle with each other before the feeder 394 delivers the fluid into the region 380 of the impeller; however, other supply channels 396 and 398, respectively, serves first and second Mixable components that do not come into contact with each other. Instead, the first blend component contained in the feeder 398, and a second blend component contained in the feeder 396, are not mixed until then, until the supply channels 396, 398 filed the appropriate components in the region 380 of the impeller at a relatively high speed where they are mixed in turbulence. This configuration provides a gradual onset of mixing fluid components with each other, because only this descargago from fluid components passing in the feeder 394, begins to mix with another fluid component before entering the region 380 of the impeller. Remaining doses of flowable components, passing in one or other of the supply channels 396, 398, remain isolated from the other fluid component until, until they reach a region 380 of the impeller. Thus, the remaining dose of the fluid components are mixed only immediately before passing through the outlet 344 of the cap 342 of the tip and maintained in isolation from each other from cylinders dual syringe 12 through the node 114 of the mandrel Luer and malleable cannula 316 and subnode 318 spray tip.

[0046] As shown in Fig.8, the malleable cannula 316, in addition, includes a region 354 of the middle end, having a pair of elongated slots, where part of the malleable cannula 316 is cut or otherwise severed to open the field 330b and 332b semi-cylindrical channel, each of which represents a continuation of one of the respective transporting the fluid cavities 330, 332. Like the ledge 370 in the field 366 of the far end, the protrusion 430 delineated in the field 354 of the near end of this zone of the malleable cannula 316, between the two elongated slits. The slits in the field 354 of the near end of pass axially along the malleable cannula 316, from the wall 432 of the near end of the pliable� cannula 316 is resistant to the walls 434, located axially inward (i.e., distal) from the wall 432 of the middle end.

[0047] the Protrusion 358 may enter into additional receiving slot of the cannula (not shown) far mandrel node and the Luer in such a way that directs fluid components in the respective carrying the fluid cavity 330, 332 without mutual influence between fluid components.

[0048] Fig.9 is cross sectional view of the malleable cannula 316 is performed along the line 9-9 of Fig.8. The view illustrates all four cavities of the malleable cannula 316, two carrying the fluid cavity 330, 332, a third cavity 334, which may include annealed wire 164, and a fourth cavity 362.

[0049] Fig.10 is cross sectional view of the malleable cannula 316 is performed along the line 10-10 of Fig.8. The view illustrates a third and a fourth cavity 334, 362, and the third cavity 334 may include annealed wire 164, which helps to maintain the desired shape of the malleable cannula 316.

[0050] In Fig.18 and 19 shows near the mandrel 320, which can be used with malleable cannula 316, referred to in this document. Top view in plan near the mandrel 320 shown in Fig.18, a cross sectional view of the near end of the mandrel 320, made by the line 19-19 of Fig.18, shown in Fig.19. Near the mandrel 320 contains two fluid channel 324, 326, communicating fluid from the respective cylinders� 510, 512 dual syringe (Fig.25). Cylinders 510, 512 to form reservoirs for the first component and the second component. Plate 325, shown in Fig.19, stands back next to the channel 324 of the fluid and enters into the slot 502 of the assembled syringe 500, as shown in Fig.25, for securing the near end of the mandrel 320 in the assembled syringe 500. Joining plate 325 in the slot 502 gives the surgeon the ability to move the assembled syringe 500 without disconnecting the assembled syringe and near 500 mandrel 320 during use. The clutch is further reinforced by the wings 327, protruding laterally adjacent to each of the channels 324, 326 of the fluid near the mandrel 320, as shown in Fig.18 and 19, and the brackets 504, shown on each side of the assembled syringe 500 of Fig.25. More specifically, after the plate 325 is inserted into the slot 502 of the assembled syringe, locks 504 on both sides of the assembled syringe mounted on the legs near 327 mandrel 320, thereby resulting enhanced, reliable connection between the proximal mandrel 320 and the assembled syringe 500.

[0051] As shown in Fig.25, the assembled syringe can contain two push latch 506 connected to each of the below brackets 504 for performing a staples in open position to provide easy entry near the mandrel plate 320 and 325 in the assembled syringe 500. More precisely, to insert PL�Steen 325 into the slot 502 of the assembled syringe 500, the user may first press the thumb and forefinger push the tabs 506, United with locks 504, thus setting the locks 504 to the open position. Other hand, the user can insert the plate near 325 mandrel 320 into the slot 502, and then insert the channels 324, 326 of the fluid in the containing the fluid cylinders of the assembled syringe 500. The user can then remove your thumb and index finger with reeds 506 attached to the locks 504 of the syringe, resulting in the locks 504 are easily installed on foot near 327 mandrel 320 and securely fastened near the mandrel 320 is assembled to the syringe 500.

[0052] In Fig.20-24 far shown the mandrel node 322 of the mandrel Luer, designed to connect with the ledge in the middle end of the malleable cannula 316. As best seen in Fig.22 and 23, at the near end in the receiving slot of the cannula far mandrel made speaker of the receiving channel. Fluid from each channel in the subnode of the mandrel Luer goes to one of the relevant areas of semi-cylindrical channel along the ledge of the malleable cannula 316 that is facilitated with additional wedges 321, 323 reception in a cylindrical slotted cannula far mandrel.

[0053] Although the applicator of the present invention described with reference to specific variants of its embodiment, it should be clear that there may be a ful�closed down with the changes within the scope of protection of the attached formula.

1. A device for supplying a mixture of at least two flowable components, inmates in at least two tanks (510, 512), in a manner to prevent premature cross-contamination of the flowable component containing:
sub-node (320, 322) of the mandrel Luer formed with the possibility of contact with said at least two reservoirs (510, 512) and forming a first channel (324) of the fluid mandrel and a second channel (326) of the fluid mandrel to create a passage for a first fluid component and a second fluid component;
the cannula (316) that includes first and second transferring the fluid cavities (330, 332), each of which communicates via a fluid with one of the first channel (324) of the fluid mandrel and the second channel (326) of the fluid mandrel; and
the subnode (318) spray nozzle located at the end of the cannula (316) that includes at least the insertion portion (348) of the tip that is inserted into the cap (342) of the tip, wherein the cap (342) of the tip has an end wall (375) with the exhaust port (344), insert (348) of the tip and cap (342) the tip shall consist of at least three of the supply channel (394, 396, 398) and arranged to limit at least three flow channels (A, b, C) in the relevant �shown at least three supply channels (394, 396, 398), each of the three supply channels (394, 396, 398) communicates via a fluid flow channel (A, b, C), paste (348) of the tip forms a message on fluid between the first transferring the fluid cavity (330) and the first flow channel (A) of the at least three flow channels (A, b, C) to create a passage of the first component and the message on fluid between the second carrying the fluid cavity (332) and the second flow channel (B) of the at least three flow channels (A, b, C) to create a passage for the second component, wherein the insert (348) of the tip and cap (342) of the tip form the third flow passage (S) of the at least three flow channels (A, b, C), and cap (342) of the handpiece and insert (348) of the tip to form a first transmit channel (350) between the first flow channel (A) and the third flow channel (S) and the second transmit channel (352) between the second flow channel (b), and a third flow channel (C), and the dose of one fluid component flows through the first flow channel (A) in the first feed channel (396), and the dose of the second component flows through the second flow channel (B) a second supply channel (398), and the remaining doses of the first and second component flows through the first (A) and second (B) transmission channels in the third about�face-to-face channel (S) and then the third feed channel (394).

2. The device according to claim 1, wherein the insert (348) of the handpiece includes a number of arched channels (383, 383) of the fluid in its near side.

3. Device according to any one of claims.1 and 2, in which the near side end wall of the end cap includes a region (380) recessed impeller in it, and several supply channels (394, 396, 398) directing the fluid from the sides of the insert (348) tip into the recessed region of the impeller.

4. The device according to claim 3, in which each of the supply channel from a number of supply channels (394, 396,398) has a mainly triangular shape with sides that taper inwardly towards each other as approaching the center of the region (380) of the impeller.

5. The device according to claim 3, in which each of the flow channels (A, b, C) at least partially defined between the sickle-shaped channels (376, 378), passing in the axial direction along the outer portion of each of the side walls of the insert (348) of the tip and the inner surface (a) cylindrical wall (373) of the end cap through which the fluid components from the first and second transferring the fluid cavities pass before entering the supply channels (394, 396, 398), and:
the first (A) from the flow channel receives fluid component only carries the fluid cavity (330) supple�Nuli (316);
second (B) from the flow channel receives fluid only component of the second carrying the fluid cavity (332) of the malleable cannula (316); and
the third (C) from the flow channel receives fluid components from the first and second transferring the fluid cavities (330, 332) of the malleable cannula.

6. The device according to claim 3, in which the first of a series of supply channels (396) receives fluid component only carries the fluid cavity (330) malleable cannula (316);
the second of a series of supply channels (398) receives fluid only component of the second carrying the fluid cavity (332) of the malleable cannula (316); and
the third of a series of supply channels (394) receives fluid components from the first and second transferring the fluid cavities (330, 332) of the malleable cannula (316).

7. Device according to any one of claims.1 and 2, in which the cap (342) of the tip includes an elongated portion (345) of the pin intersecting with the exhaust hole (344) on the distant surface of the end wall (375).

8. The device according to claim 1, wherein the region (366) of the far end of the malleable cannula (316) includes a pair of slits extending from a wall (400) of the far end of the malleable cannula (316) to a couple of hard walls (402), axially close to the wall (400) of the far end, and each of the slits opens the corresponding semi-cylindrical channel (a, a), about�odasi from one of the respective first and second cavities (330, 332) that carry the fluid, and combine shelves(404, 406, 408, 410), passing in the transverse direction from each of the semi-cylindrical channels (a, a) to the outer perimeter of the malleable cannula (316).

9. The device according to claim 8 in which the insert (348) of the handpiece includes a receiving slot (379), motivated by the projection (370) malleable cannula (316) outlined shelves(404, 406, 408, 410), wall (400) of the far end and part of the outer perimeter of the malleable cannula (316) extending between the wall of the far end and hard walls (402).

10. The device according to claim 9, in which the protrusion of the tip, in addition, includes a pair of arched flow channels (381, 383), each of the arched channels (381, 383) fluid is combined with one of the respective semi-cylindrical channels (a, a) when the projection (370) malleable cannula (316) is included in a receiving slot (379), and each of vaulted flow channels (381, 383) provides the message by fluid from one of the semi-cylindrical channels (a, a) until the gap between the inner surface of cylindrical wall (373) of the cap (342) of the tip and the outer side of the insert (348) of the tip.

11. The device according to claim 1, wherein the cannula (316) has a region (354) near the end that is in contact with the sub-node (322) of the mandrel Luer, and each of the first and second transferring the fluid cavities (330, 332) �oomaeda in a fluid environment with the corresponding hole of the fluid channel, a third cavity (334) and a fourth cavity (362); and
the subnode (318) spray tip, additionally containing the first mix component from the first transferring the fluid cavity (330) in a first region between the cap (342) of the handpiece and insert (348) of the tip, the second Mixable component from the second carrying the fluid cavity (332) in the second area between the end cap and insert the tip and the combination of the first and second mixed components from the first and second transferring the fluid cavities (330, 332) in a third region between the cap (342) of the handpiece and insert (348) of the tip, each of the first, second and third regions are separated from each other so that there are three channels (A, b, C) a fluid medium, each of which enters one of several supply channels (394, 396, 398) prior to mixing, while one (C) three channels of the fluid is a combination of the first and second Mixable components, the other (A) represents only the first blend component and another (B) represents only the second Mixable component.

12. The device according to claim 1, wherein the sub-node (322) of the mandrel Luer includes:
near the mandrel having a first channel (324) of the fluid and a second channel (326) of the fluid;
far mandrel having a near side to the first oblong� groove and the second elongated groove therein, each of the first and second elongated recessed channels along the far wall near the mandrel limiting the respective first and second channels of the fluid far mandrel and the first and second channels of the fluid far mandrel is communicated in fluid with the first and second fluid channel, respectively, near the mandrel, and further comprising a receiving slot of the cannula, made at the far end of the mandrel, whereas the first and second fluid channels of the far end of the mandrel at the appropriate hole of the fluid channel open to the interior of the cylindrical receiving slot of the cannula.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: apparatus for distributing an adhesive substance from a synthetic material deposited in a fluid state and solidified thereafter, particularly a polyurethane-based adhesive substance, includes a plurality of transport channels having an outlet opening. The adhesive substance is distributed from a feed channel into a plurality of outlet openings.

EFFECT: invention simplifies application of an adhesive substance on a base, keeps consumption of the adhesive substance as low as possible for a possibly large application surface area without negatively affecting strength of the adhesive joint, reduces time spent on applying the adhesive and improves cost-effectiveness.

25 cl, 9 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to liquid filling bulk proportioner to be used with static mixer for accurate application to preset point of filling bulk mixed in static mixer. Liquid filling bulk injector has static mixer (1) case (2) composed of a fastener for tubular element (60). Discharge element (45) is made integral with static mixer (1) case (2).

EFFECT: simplified assembly, easier mounting, filling of filling bulk in nooks.

16 cl, 13 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to cartridge for fluids, pastes and pasty bulks, to piston to close said cartridge and to system composed by such cartridge and tool (15). Said piston has main cylinder-like or cylindrical pipe-like body to be fitted in said cartridge and displaced therein along its axis. Besides, it has at least one ledge (12) to seal the surface extending parallel with cylinder lengthwise axis or at acute angle thereto. Note here that said sealing ledge is arranged to be diverted at closing of cartridge by piston from sealing surface by the tool acting from the side of piston end face to allow air escape from the cartridge.

EFFECT: tight piston fit to rule out the fluid, pastes or pasty materials from intake chamber.

20 cl, 8 dwg

Repair nozzle // 2513447

FIELD: process engineering.

SUBSTANCE: invention relates to nozzle intended for production and reconditioning of rollers of materials, in particular, glues and/or sealants with different surface structures to be used in automotive industries. Repair nozzle to dispense thick materials from container by dispensing gun comprises proximal product feed side and distal product feed side. Proximal side comprises means for articulation of nozzle with container. Distal side has slotted mount for material roller. Repair nozzle has at least one sealing element to be fitted between repair nozzle and container during thick material dispensing. Repair system for reconditioning in automotive industry comprises repair nozzle, dispensing gun and container with thick material.

EFFECT: increased for extrusion of materials.

12 cl, 7 dwg

The invention relates to a device for transfer to the substrate, for example on a printed sheet or the sheet printed on the tape media in the form of a film material

The invention relates to a handheld device according to the restrictive part p. 1 claims

The invention relates to a handheld device for applying a layer from the substrate in the form of a film on the substrate

The invention relates to containers for return spotting weight, in particular adhesive

FIELD: machine building.

SUBSTANCE: pulsator valve contains body with bonnets made in form of a hollow cylinder with holes, connecting with the process vessel and gas supply line, equipped with bearing supports, in which the rotor with holes on the side surface for gas passage is installed. The body is equipped with four in pairs diametrical holes on its side surface, connecting via the unions with the process vessel. The rotor is made hollow, with hole connecting with the gas supply line, located in its end part, and with two diametrically located holes on its side surface connecting via the body holes with the process vessel. Inside the rotor there is sleeve, its side surface is equipped with three holes connecting via the rotor and body holes with the process vessel, two holes are located diametrically, and third hole axis is displaced in relation to the axis of any of two other holes by 70°. The sleeve is made with possibility of rotation and fixation such that one or two holes on its side surface coincide with one or two holes on the side surface of the rotor.

EFFECT: invention increases operation possibilities by extension of the range of machined materials and range of machining process parameters.

5 dwg

FIELD: machine building.

SUBSTANCE: feeder-metering device for bulk materials provides for the supply of bulk materials to the working zone with minimal wear of screw and bearing units due to a removable antifriction insert protecting the casing against the impact of the materials, a screw groove made in the shaft friction zone and a compactor with coiling directed to the side being the same as the screw coiling direction, due to which the material is removed from the bearing to the screw unit side.

EFFECT: invention allows for the regulation of material supply to the working zone, increased operation life of screw and bearing units.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to flow rate regulation with the help of linear pump. Invention disclosed distribution unit with variable and constant ratio of dispensed components. DC motor drives the gear pump submerged into fluid feed unit. Output of the latter feeds the hydraulic linear motor, its operating direction being controlled by two outlet reversing valves. Fluid lines motor drives one or two fluid transfer pumps secured to fluid pump. Pump outlet pressure and/or flow rate adjustment for fluid transfer is carried out by varying the DC motor output torque with the help of engine control unit made to order. Engine control engine exploits measurements of linear position transducer and pressure transducer arranged at fluid transfer pump outlet as the main adjustable process parameters (or feedback between transducers and control device) for pump regulation.

EFFECT: lower costs.

4 cl, 2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to batching of different components and can be used for dispensing of construction foam. This device has at least one inlet valve (1) and at least one outlet (2) with through channel (3) for pressurized first component and at least one extra outlet (7) for second component. First component amount flowing through channel (3) detector (4) and second component amount batcher (6) are configured so that batching of second component occurs subject to measured amount of the first component.

EFFECT: improved ratio of mixing of the components.

17 cl, 9 dwg

FIELD: engines and pumps.

SUBSTANCE: biomineral fuel mixer is arranged in vehicle fuel tank and comprises external pipe 1 and comprises biological component feed line, internal pipe 4 with moving conical funnel 7, inner chamber 17 communicated with fuel tank chamber filled with mineral component. funnel 7 is connected by yoke 10 with road 11 loaded by return spring 15 and arranged inside solenoid 12 with electric circuit is connected via switch 13 to DC source 14. Additionally, contact temperature pickup 16 of engine cooling system is connected in the circuit between solenoid 12 and switch 13. Cold engine start and warm-up are executed on mineral component. With coolant temperature reaching 60±2°C contacts of pickup 16 make so that solenoid 12 rod 11 displaces conical funnel 7 for it to allow the feed of biological component to mineral component at alignment of holes 5 and 9 on internal pipe 4 and funnel 7. Vehicle engine starts running on biomineral fuel. Engine shut down and cooled down, contacts of temperature pickup 16 break to de-energise the circuit of solenoid 12 and to make funnel 7 return to initial position with the help of spring 11 whereat vehicle engine starts running on mineral component.

EFFECT: automatic mixing.

1 dwg

FIELD: motors and pumps.

SUBSTANCE: components mixer of mixed diesel fuel containing external pipe with tank inlet channel secured in the tank bottom part; internal pipe with radial holes and output channel, cone funnel with cylindrical branch having radial holes that is kinematically connected via the plug with stock; the difference is that plug stock is driven from linear (or step) motor electrically connected with the electronic control box and transmitters of the engine load and speed modes; internal cavity of the cone funnel is connected with cavity of the mineral component tank, inlet channel in bottom of the external pipe is connected with vegetative component supply main line.

EFFECT: automatic control of percentage composition of mineral and vegetative components of mixed diesel fuel depending on load and speed mode of the engine.

1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to fabrication of substances and structures with composition gradient and can be used in many fields. Device (1) comprises several vessels (R1, R2) to house different powders (A1, A2), powder mixer (30) arranged under said vessels and including mixing element (32) fitted on shaft to run thereabout and some distributors (4, 6) of powder to interact with said vessels. Every said distributor can adjust powder flow rate in the way from vessel to mixer. Device comprises powder mix collector (56) arranged under said mixer and powder mix distributor (60) arranged under said collector.

EFFECT: higher homogeneity of mix composition.

14 cl, 16 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of thick dye-stuff of varying tonality. Besides, this invention relates to software product used for of dye preparation. Proposed device comprises piston pump with dispensing channel receiving thick dye-stuff in definite amount per piston unit stroke in piston displacement toward first end of the cylinder, said amount differing from that in piston displacement from cylinder second end. Additionally, said device comprises a valve connected to dispensing channel. Said valve has dispensing channel connected to valve first discharge channel to feed thick dye-stuff into can and bypass feed channel connected to valve second discharge channel to feed thick dye-stuff in bypass the can for it to be tinted.

EFFECT: accurate dispensing of minor amount of colorant and fast dispensing of major mount thereof.

11 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to preparation and dispensing of the solutions of reagents and may be used in water treatment systems as well as chemical and food industries. Proposed plant comprises two vessels with mixers, two-way reversing dry substance screw feeder, reagent solution feed and dispensing system, set of shutoff valves and measurement equipment, microprocessor control unit to completely automate the process.

EFFECT: higher efficiency and accuracy, possibility to service two and more entities at a time.

3 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to device for injecting thread of pasty material consisting of several components in gap between two glass panels 33, 34 of heat-insulation double-glazed window. Proposed device comprises nozzle 25, one store 15,15',16,16',27, 27' for every component of said pasty material communicating via firth feed path with nozzle 25, dynamic mixer 20 arranged at said first feed path, and containers 1, 2 for every said component to communicate with stores 15,15',16,16',27, 27' and to replenish them via second feed path for injecting thread in gap between two glass panels 33, 34.

EFFECT: accurate proportioning of sealant.

15 cl, 3 dwg

FIELD: medicine.

SUBSTANCE: invention refers to traumatology and orthopaedics and is applicable for joint drainage in revision endoprosthesis replacement. A drain tube is inserted into a wound with implanting a bone cement spacer containing an antibiotic. Within the first 24-48 postoperative hours, the fluid content is actively gradually evacuated from the postoperative wound every hour for 10-15 minutes.

EFFECT: method enables increasing the antibacterial effect.

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to otorhinolaryngology, and can be used in myringoplasty, for repairing partially lost anatomic structures, such as tympanic membrane. The surgery is performed with local or general anaesthesia. A tympanic membrane defect is closed with a thinned prepared alloplant in the form of an allogeneic cartilage plate. Before implanting, the alloplant is fragmented up to 0.2-0.3 mm thick and 0.8-0.9 cm in diameter that is followed by placing the plate into a bottle with a fixing fluid. The final stage of the operation involves placing the alloplant on the edges of the tympanic membrane defect. The cartilage plate is supposed to be more by 1.0-1.5 mm in size with the plate edges to be ovelapped with the acoustic meatus skin. The acoustic meatus is packed.

EFFECT: method provides the reliable fixation of the alloplant, preventing its postoperative dislocation and retraction, audiological characteristics of the alloplant as close to the characteristics of the normal tympanic membrane as possible, the absence of implant rejection and pronounced immune response, proteolytic enzyme stability, necessary rigidity of the cartilage plate, reduced length of the intervention, the absence of a cosmetic auricle defect.

1 dwg

FIELD: medicine.

SUBSTANCE: surgical management of colon cancer is required in low colonic obstruction. A midline laparotomy and abdominal organs inspection is followed by colon mobilisation. A colonic segment with a tumour is resected. The segmented intestine is decompressed with an electric suction machine. The rectal stump is stitched with a stapling apparatus. A superposed segment of the segmented intestine is mobilised to be brought down. A tunnel is formed behind the rectal stump from the side of the anus as close as possible to the oral end of the stump. A hole is formed along the posterior wall with an electric knife and used to bring down the mobilised segmented intestine by means of a guide. The intestine is fixed to the hole borders with four stitches. The excessive intestine is brought out through the anus and fixed to the perineal skin. A dioxidine solution is administered into the abdominal cavity. The rectal stump is daily washed with antiseptic solutions until the excessive brought out intestine is dissected away on the 10-14th day.

EFFECT: method enables applying the primary stitch-free colorectal anastomosis, requires no rehabilitation stage of treating colon cancer by the natural formation of the anastomosis and prevention of its leakage; it also reduces the length of disability and improves the patient's quality of life.

1 ex, 2 dwg

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