Safe disposable syringe

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to safe disposable syringes. Safe disposable syringe contains cylinder, plunger, piston, hollow needle and needle-holder. Cylinder has anterior and posterior open ends, limiting cavity and having axis (X). Plunger continues through posterior open end of cylinder into cavity and has anterior end. Piston is mounted on anterior end of plunger and is formed with first engaging element. Needle holder in proper manner is continued through anterior open end of cylinder and has anterior end located outside cylinder cavity, and posterior end, located in cavity, and having posterior butt surface facing piston. Needle holder limits central canal passing through anterior end of needle holder for placement of hollow needle, and limits flow canal, passing through posterior butt surface of needle holder posterior end and providing liquid connection of central canal with cylinder cavity. Posterior butt surface of needle holder posterior end is formed with second engaging element, which is aligned in longitudinal direction, and which is adapted for engagement with first engaging element. Flow canal has first end section, ending on posterior butt surface of needle holder posterior end, and has second end section, opposite to first end section and ending on posterior butt surface of needle holder posterior end. Second engaging element has end section, ending on posterior butt surface of needle holder posterior end and located at distance from first end surface of flow canal. Needle holder has external surface around axis (X) and flow canal, as a rule, U-shaped, which has radially continuing section, continuing radially with respect to external surface, and two sections, continuing in longitudinal direction, which continue respectively from two ends of radially continuing section to first and second end sections. Flow canal widens from inside radially with respect to external surface of needle holder on needle holder axial length.

EFFECT: obtaining possibility to use said syringe construction for syringes of small size, ie for syringes whose size constitutes less than 1 cm3.

12 cl, 11 dwg

 

The level of technology

1. The technical field to which the invention relates.

The present invention relates to safe disposable syringe, more particularly, to safe disposable syringe including a cylinder and a needle holder, which is provided with a hollow needle and is adapted to hold the piston mounted on the rod for retracting the hollow needle into the cylinder before disposing of the syringe.

2. Description of the prior art

Figure 1 demonstrated the usual safe disposable syringe, which includes a cylinder 11, the piston rod 14, continuing into the cylinder 11, the piston 15 mounted on the rod 14 and is formed with siteplease groove 151, and the needle holder 13, continuing into the cylinder 11, which is connected with a hollow needle 16 and is formed with a gear protrusion 131, which is adapted to be hooked siteplease groove 151 that allows you to draw a hollow needle 16 into the cylinder 11 before disposing safe disposable syringe. The needle holder 13 is formed with a channel 133 to accommodate the hollow needle 16 and the flow channel 132 extending from one end of the channel 133 through the end surface 1311 gear protrusion 131 to provide fluid communication between the hollow needle 15 and the cylinder chamber 11. However, due to the fact that the flow channel 132 passes through the gear protrusion 131, the latter must be large to have the ability to generate through it a flow channel 132. For this reason, the design above safe disposable syringe is not suitable for syringes of small size, i.e. syringes, the size of which is less than 1 cm3.

Disclosure of inventions

In this regard, the present invention is to offer a safe disposable syringe, in designs which overcome the foregoing disadvantage inherent in the known technical solutions.

According to the present invention is safe disposable syringe contains: cylinder with front and rear open ends, bounding a cavity and having an axis; a rod, continuing through the rear open end of the cylinder in the cavity and having a front end; a piston mounted on the front end of the rod and formed with a first mating element; a hollow needle; and a needle holder, duly continuing through the front open end of the cylinder, and the needle holder has a front end located outside the cavity of the cylinder, and a rear end located in the cavity of the cylinder, and the rear end surface facing the piston. The needle holder restricts the Central channel passing through the front end of the needle holder to accommodate the hollow needle, and a flow channel passing through the rear end surface of the rear end of the needle holder and providing a Jew who ostow communication center channel with the cavity. The rear end surface of the rear end of the needle holder is formed with a second mating element, which is aligned in the axial direction and which is adapted to be coupled with the first mating element. The flow channel has a first end section, ending at the rear surface of the rear end of the needle holder, and a second end section opposite the first end section and ending at the rear surface of the rear end of the needle holder. The second mating element has a tail section, ending at the rear surface of the rear end of the needle holder and located at a distance from the first end portion of the flow channel. The needle holder has an outer surface that is positioned around the axis. A flow channel is generally U-shaped, has a radially continued section, which continues radially relative to the outer surface of the needle holder, and two sections continuing in the longitudinal direction of the cylinder, which extend respectively from two ends of the radially continued section to the first and second end portions of the flow channel. The flow channel extends radially inside relative to the outer surface of the needle holder along the axial length of the needle holder.

Brief description of drawings

Others the many features and advantages of the present invention will become apparent from the following detailed description of preferred embodiments of the invention with reference to the accompanying drawings, on which:

figure 1 is a view in partial section of a conventional safe disposable syringe;

figure 2 is a perspective view safe disposable syringe disassembled according to the first preferred variant implementation of the present invention;

figure 3 is a schematic top view safe disposable syringe according to the first preferred variant embodiment of the invention;

4 is a partial cut safe disposable syringe according to the first preferred variant embodiment of the invention;

5 is a view of a needle holder according to the first preferred variant embodiment of the invention;

6 is a partial cut safe disposable syringe according to the first preferred variant of the invention, showing how the fluid in the cylinder is displayed via a flow channel and a hollow needle;

7 is a partial cut safe disposable syringe according to the first preferred variant of the invention, showing the piston is fixed in engagement with the needle holder;

pig - partial incision safe disposable syringe according to the first preferred variant of the invention, showing the needle holder, drawn together with a hollow needle into the cylinder;

figure 9 is a partial cut safely is th disposable syringe according to the first preferred variant of the invention, showing part of the stem separated from the syringe after the needle is retracted into the cylinder;

figure 10 - view of a needle holder in accordance with the second preferred option safe disposable syringe according to the present invention; and

11 - cut safe disposable syringe according to the second preferred variant of the invention, showing the state when the needle holder with a hollow needle is tilted at an angle about the axis after he pulled into the cylinder.

Detailed description of preferred embodiments of the invention

Before the present invention will be described in more detail, it should be noted that similar elements have the same reference position throughout the description.

Figure 2-5 shows a first preferred variant of the safe disposable syringe according to the present invention, which includes: a cylinder 3 having front and rear open ends 31, 32 and bounding a cavity 30 for receiving medication, and having an axis (X); stem 5, continuing through the rear open end 32 of the cylinder into the cavity 30 and having a front end 51, is formed with a protrusion 511; piston 6 mounted on the front end 51 of the shaft 5 and is formed with a rear recess 621 to accommodate the protrusion 511 and the first mating e is ment 611', opposite the rear recess 621; a hollow needle 2; and the needle holder 4, duly continuing through the front open end 31 of the cylinder 3 and has a front end 41 located outside the cavity 30, and the rear end 42 located in the cavity 30 of the cylinder and having a rear end surface 420 facing the piston 6. The needle holder 4, moreover, has an external surface around the axis (X), bounding the Central channel 45, passing through the front end 41 of the needle holder 4 to accommodate the hollow needle 2, and has a flow-through channel 46, passing through the rear end surface 420 of the rear end 42 of the needle holder 4 and providing fluid communication of the Central channel 45 with the cavity 30. The rear end surface 420 of the rear end 42 of the needle holder 4 is formed with a second mating element 44', which are aligned in the axial direction and which is adapted for coupling with the first mating element 611' (see Fig.7). The flow-through channel 46, generally U-shaped, has a first end section 460 (see figure 5), ending at the rear surface 420 of the rear end 42 of the needle holder 4 and the second end section 465, opposite the first end segment 460 and ending at the rear surface 420 of the rear end 42 of the needle holder 4. The second mating element 44' has a tail section 440 (see figure 5), Zack is nevuses at the rear surface 420 of the rear end 42 of the needle holder 4 and located at a distance from the first end portion 460 of the flow channel 46. The flow-through channel 46 has a radially continued section 462, which extend radially with respect to the outer surface of the needle holder, and two sections continuing in the longitudinal direction 461, which extend respectively from two ends of the radially continued section 462 to the first and second end portions 460, 465. The flow-through channel 46 extends radially inside relative to the outer surface of the needle holder 4 along the axial length of the needle holder 4.

Preferably, the first and second mating elements 611', 44' are linked with each other by way of coupling protrusion-recess. In this embodiment of the invention, the piston 6 is formed with SitePlayer recess 611, which defines a first mating element 611', and the rear end surface 420 of the rear end 42 of the needle holder 4 is formed with a gear protrusion 44, which defines a second mating element 44'.

Preferably, the volume of the flow channel 46 is essentially equal to the volume SitePlayer deepening 611, so that when the displacement of the cylinder 3 of the total volume dialed medicine air trapped SitePlayer recess 611, could be used to displace preserved in the flow channel 46 of the rest of medicine when engaged SitePlayer deepening 611 with gear protrusion 44. This avoids unnecessary consumption of the medication.

In this embodiment of the invention, each continuing in the longitudinal direction of the sections 461 of the flow channel 46 has a depth (d) in the radial direction relative to the axis (X) and width (w) in the direction transverse to the radial direction and the axis (X). The ratio of the width of each continuing in the longitudinal direction of the sections 461 flow passage 46 to the perimeter of the rear end 42 of the needle holder 4 is preferably less than 1/15. The ratio of the depth of each continuing in the longitudinal direction of the sections 461 flow passage 46 to the diameter of the rear end 42 of the needle holder 4 is, preferably, less than 1/7. In this embodiment of the invention the width of each of the continuing in the longitudinal direction of the sections 461 of the flow channel 46 is 0.5 mm and the depth of each continuing in the longitudinal direction of the sections 461 of the flow channel 46 is 0.5 mm.

In this embodiment of the invention, the needle holder 4 is Tselikov. Gear protrusion 44 continues along the axis (X) of the cylinder 3. The first and second end sections 460, 465 of the flow channel 46 are located on two sides of the gear protrusion 44.

The front end 41 of the needle holder 4 has a first end surface 410. The Central channel 45 of the needle holder has a first section 451 that extends from the first end surface 410 per the last end 41 of the needle holder 4, the second section 452 that extends from the first section 451, the third section 453 that extends from the second section 452, and the fourth section 454 that extends from the third section 453 to the flow channel 46. The first section 451 tapers from the front end surface 410 of the front end 41 of the needle holder 4 to the adjacent end of the second section 452. The second section 452 extends from the adjacent end of the first section 451 to the adjacent end of the third section 453 to form a narrowing 455 between the first and second sections 451,452, allowing you to clamp a hollow needle 2. The first section 451 of the Central channel 45 is filled with an adhesive 8 for fixing the hollow needle 2 needle holder 4. The rear end 42 of the needle holder 4 is formed with a neck 421. The cylinder 3 is formed with an internal flange 3111, located near the front open end 31 of the cylinder 3 and rests on the neck 421 of the rear end 42 of the needle holder 4 in order to prevent unwanted extraction of the needle holder 4 through the front open end 31 of the cylinder 3.

The needle holder 4 has a tubular wall 40 (see figure 2 and 5), which limits the Central channel 45, and has a lot of angled ribs 43, divergent rays from the outer surface of the tubular wall 40, which are in frictional contact with the inner surface of the front open end 31 of the cylinder 3, and has calcev the second flange 471, connected with the ends of the ribs 43. The needle holder 4 is formed with an annular locking groove 431 between the annular flange 471 and continuing radially section 462 of the flow channel 46. The locking groove 431 holds the o-ring 47, which is in tight contact with the inner surface of the front open end 31 of the cylinder 3.

The cylinder 3 has a rear end section, the inner surface of which has a cylindrical rear segment 321 that extends from the rear open end 32 of the cylinder 3, the middle segment 323 and the transition segment 322, which connects the posterior segment 321 and the middle segment 323 and extends in the cross section from the rear segment 321 of the middle segment 323. The stem 5, moreover, has a rear end 52 and is formed with an annular groove 513, which is located between the front and rear ends 51, 52 of the rod 5, the rod has a first annular flange 512, which is located in the longitudinal direction at a distance from the annular groove 513, and the second annular flange 512', which is located between the annular groove 513 and the first annular flange 512. The annular groove 513 is located between the second flange 512' and the rear end 52 of the rod 5. The second annular flange 512' has a diameter essentially equal to the diameter of the rear segment 321 of the cylinder 3. The first annular flange 512 has a diameter essentially equal the second diameter of the transition segment 322 of the cylinder 3.

Figure 6-8 presents safe disposable syringe in action, in which medicine 9 under the action of an external force on the rod 5 is pushed out from the cylinder 3 and passes through the flow-through channel 46 and the hollow needle 2 for injection to the patient. When siteplease the recess 611 in the piston 6 is shown in full engagement with the gear protrusion 44 of the needle holder, the cure 9 out of cylinder 3 is fully ejected, which is well demonstrated in Fig.7. After using safe disposable syringe before disposal rod 5 divert back to retract the needle holder 4 together with the hollow needle 2 into the cylinder 3, which is well demonstrated by Fig. When the first annular flange 512 of the rod 5 abuts against the transition segment 322 of the inner surface of the rear end portion of the cylinder 3, further movement of the rod 5 is prevented. In this state, the annular groove 513, essentially, is flush with the rear surface 320 of the cylinder 3, which allows to destroy the rod 5 through the annular groove 513 (see Fig.9).

Figure 10 and 11 shows a second preferred variant of the safe disposable syringe according to the present invention. The second preferred option differs from the previous version of the invention that the gear protrusion 44 of the needle holder is tilted relative to the axis (X) of the cylinder 3, is about as siteplease the recess 611 directed along the axis (X) of the cylinder 3.

As illustrated in the preferred embodiments of the invention, the flow-through channel 46 in the needle holder 4 is formed so that it does not pass through the second mating element 44' (i.e., the gear protrusion 44 formed on the rear surface 420 of the rear end 42 of the needle holder 4), so that the size of the second mating element 44' may be minimized, since the adhesion between the first and second mating elements 611', 44' is sufficient, which gives the opportunity to pull the needle holder 4 in the cylinder 3 by means of the rod 5, resulting in eliminating the above disadvantage inherent in the known technical solutions.

Although the present invention has been disclosed by the most practical and preferred embodiments of the invention, it is obvious that the present invention is not limited to the described variants of implementation, but is intended to cover various devices included within the essence and scope of the invention in its broadest interpretation, and devices that is equivalent to them.

1. Safe disposable syringe containing:
the cylinder (3)having front and rear open ends (31, 32), bounding a cavity (30) and having an axis (X);
rod (5), continuing through the rear open end (32) of the cylinder in bands is (30) and having a front end (51);
the piston (6), mounted on the front end (51) of the rod (5) and formed with the first mating element (611');
a hollow needle (2); and
the needle holder (4), properly continuing through the front open end (31) of the cylinder (3) and having a front end (41)located outside the cavity (30) of the cylinder, and the rear end (42)located in the cavity (30) and having a rear end surface (420)facing the piston (6)and the needle holder (4) restricts the Central channel (45), passing through the front end (41) of the needle holder (4) to accommodate the hollow needle (2), and restricts the flow-through channel (46)passing through the rear end surface (420) rear end (42) of the needle holder (4) and providing fluid communication of the Central channel (45) with a cavity (30) of the cylinder, while the rear end surface (420) rear end (42) of the needle holder (4) is formed with the second mating element (44'), which are aligned in the longitudinal direction and which is adapted to be coupled with the first mating element (611');
in which a flow channel (46) has a first end section (460), ending at the rear surface (420) rear end (42) of the needle holder (4), and has a second end section (465), opposite the first end section (460) and ending at the rear surface (420) rear end (42) of the needle holder (4);br/> in which the second mating element (44') is the tail section (440), ending at the rear surface (420) rear end (42) of the needle holder (4) and located at a distance from the first end portion (460) of the flow channel (46);
in which the needle holder (4) has an external surface around the axis (X) and the flow-through channel (45), generally U-shaped, having a radially ongoing section (462), which extend radially with respect to the outer surface, and two sections (461), continuing in the longitudinal direction, which extend respectively from two ends of the radially ongoing section (462) to the first and second terminal region (460, 465); and
in which a flow channel (46) extends radially inside relative to the outer surface of the needle holder along the axial length of the needle holder (4).

2. Safe disposable syringe according to claim 1, in which the first and second mating elements (611', 44') are linked with each other by way of coupling protrusion-recess.

3. Safe disposable syringe according to claim 2, in which the piston (6) is formed with SitePlayer deepening (611), which defines a first mating element (611'), and the rear end surface (420) rear end (42) of the needle holder (4) is formed with a gear protrusion (44), which defines a second mating element (44').

4. Safe on the disposable syringe according to claim 3, in which the volume of the flow channel (46)is essentially equal to the volume SitePlayer deepening (611).

5. Safe disposable syringe according to claim 1, in which each continuing in the longitudinal direction of the sections (461) of the flow channel (46) has a depth (d) in the radial direction relative to the axis (X) and width (w) in the direction transverse to the radial direction and the axis (X), and the ratio of the width (w) of each of the continuing in the longitudinal direction of the sections (461) of the flow channel (46) to the perimeter of the rear end (42) of the needle holder (4) is less than 1/15, and the ratio of the depth (d) each continuing in the longitudinal direction sections (461) of the flow channel (46) to the diameter of the rear end (42) of the needle holder (4) is less than 1/7.

6. Safe disposable syringe according to claim 3, in which the needle holder (4) is Tselikov and has a gear protrusion (44), continuing along the axis (X) of the cylinder (3), and the first and second end sections (460, 465) of the flow channel (46) are located on two sides of the gear protrusion (44).

7. Safe disposable syringe according to claim 3, in which the front end (41) of the needle holder (4) has a front end surface (410), the Central channel (45) needle holder has a first section (451)that extends from the first end surface (410) front end (41) of the needle holder (4) and has a second section (452), continuing from the first the section (451), and the third section (453), continuing from the second section (452), and the fourth section (454), continuing from the third section (453) to the flow channel (46), with the first section (451) tapers from the first end surface (410) front end (41) of the needle holder (4) to the adjacent end of the second section (452), while the second section (452) extends from the adjacent end of the first section (451) to the adjacent end of the third section (453) in order to form a constriction (455 between the first and second sections (451, 452), allowing you to clamp a hollow needle (2).

8. Safe disposable syringe according to claim 1, in which the needle holder (4) has a tubular wall (40), which limits the Central channel (45), and has a lot of angled ribs (43), divergent rays from the outer surface of the tubular wall (40), which are in frictional contact with the inner surface of the front open end (31) of the cylinder (3).

9. Safe disposable syringe according to claim 1, in which the cylinder (3) also has a rear tail section, the inner surface of which has a cylindrical rear segment (321), continuing from the rear open end (32) of the cylinder (3), also has a middle segment (323) and a transition segment (322), which connects the posterior segment (321) and the middle segment (323) and expands in cross section from the rear segment (321) to the middle segme the TA (323), in addition, the rod (5) has a rear end (52) and formed with an annular groove (513), which is located between the front and rear ends (51, 52) of the shaft (5), and has a first annular flange (512)located in the longitudinal direction at a distance from the annular groove (513), and the second annular flange (512')located between the annular groove (513) and the first annular flange (512), and the annular groove (513) is located between the second annular flange (512') and the rear end (52) of the shaft (5), while the second annular flange (512') has a diameter essentially equal to the diameter of the rear segment (321) of the cylinder (3), and the first annular flange (512) has a diameter essentially equal to the diameter of the transition segment (322) of the cylinder (3).

10. Safe disposable syringe according to claim 1, in which the gear protrusion (44) is inclined relative to the axis (X) of the cylinder (3) and siteplease deepening (611) continues along the axis (X) of the cylinder (3).

11. Safe disposable syringe according to claim 1, in which the rear end (42) of the needle holder (4) is formed with a neck (421)and the cylinder (3) is formed with an inner flange (3111), located near the front open end (31) of the cylinder (3) and resting in the neck (421) rear end (42) of the needle holder (4).

12. Safe disposable syringe according to claim 1, in which the needle holder (4) is formed with an annular locking groove (431), and safe disposable syringe, except that what about that contains o-ring (47), which is held in the locking groove (431) and is in tight contact with a front open end (31) of the cylinder (3).



 

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Safe syringe // 2329067

FIELD: medicine.

SUBSTANCE: invention refers to syringes. First version of design implies safe syringe including injector as tube with centre aperture, forming internal container, push rod inserted into injector container by flanged piston, bush with hollow sleeve being hold by injector aperture, needle assembly and sealing element. Sleeve is equipped by upper detachable junction and lower bush in its cavity so that needle base is supplied with connecting insert forming upper detachable junction. Lower push provides connection with flanged push rod. Needle assembly consists of needle base and needle body. Needle base is mounted outside of bush sleeve. Sealing element is made of elastic materials and preliminary formed by bush sleeve, and include external section provided outside of sleeve and forming air-tight connection with internal wall of injector container. Second version implies that needle base is supplied by connecting insert for upper detachable sleeve junction sealing element is furnished with lower bottom bush inside of sleeve for detachable junction with flanged push rod. In third version needle base is mounted outside of bush sleeve, and sealing element inside of sleeve is provided with upper and lower bushes, and needle base is furnished with connecting insert forming upper detachable junction, and lower bush provides connection with flange of pusher rod. In fourth version needle base is mounted outside of bush sleeve, but thus sealing element is equipped with internal threaded section, and forms lower bush inside of sleeve, and needle base is supplied with external threaded section to form connection with external threaded section, and lower bush provides connection with flange of push rod. In fifth version needle base also is mounted outside of bush sleeve, and sealing element is supplied with lower bush inside of sleeve to form connection with flange of push rod.

EFFECT: assemblage simplification, productivity increase, and profitability increase.

15 cl, 18 ex

FIELD: medical equipment.

SUBSTANCE: protection device is attached to syringe to transform it to single-use automatic safety syringe. Syringe has case, plunger and injection needle. Case is hollow from inside and open from back and front. Plunger slides inside case from back position when syringe is completely filled to front position when it is empty. Plunger is provided with piston, which piston can be driven into motion manually and withdrawn out of case of syringe by means of its rear end. Needle is built in needle carrier attached to head of syringe's case. Protection device can be preliminary assembled and it has hollow cylinder, spring and support member. Cylinder is mounted for slide onto case of syringe. Spring is placed into cylinder. Support member for spring is also placed into cylinder and integrated with front part pf syringe's case. Fixation devices are absent in cylinder, which devices work together with support member used for fixing cylinder when it is in its front safe position. Fixation device for fixating cylinder in safe position have pair of front tongues formed in cylinder. Pair of front tongues has rear support surfaces being capable of resting against shoulder of support member. Pair of rear tongues has front support surfaces for resting against rear edge of case of support member.

EFFECT: universality; simple at manufacture and mounting.

16 cl, 8 dwg

Disposable syringe // 2314130

FIELD: medical equipment, in particular, safe disposable syringe.

SUBSTANCE: disposable syringe has cylinder, adapter tube, insertion pipe, and piston. Both ends of cylinder are open. Adapter tube is inserted at one cylinder side to provide sealing contact of adapter tube with inner periphery of cylinder. Piston is inserted into cylinder. Adapter tube has small-diameter member and large-diameter member having inner diameter exceeding that of small-diameter member. Insertion pipe has first contact member brought into sealing contacting with inner periphery of large-diameter member of adapter tube, and insertion member inserted into small-diameter member.

EFFECT: enhanced safety of disposable syringe due to reduced probability for occurrence of manufacturing imperfections, reduced production costs and increased efficiency.

16 cl, 12 dwg

Medical needle // 2405575

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, in particular to medical needles for intraocular injections. Medical needle contains sharpened tube (1), fixed in adaptor (2). Needle is provided with rounded nozzle (3), which has canal, into which sharpened part of tube is placed with possibility to move sharpened tube (1) in nozzle with friction against canal walls. Diametre of rounded nozzle (3) does not exceed permissible value of eyeball displacement during injection.

EFFECT: reduction of danger of eyeball trauma during injection.

3 cl, 2 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to cannula, mainly with cannula-holder, in particular for device for blood sampling. Cannula contains rotary protective case for free end of cannula, closed on periphery with exception of inlet hole for cannula, provided between opposite to each other lateral walls and formed by at least one formed on lateral walls pair of petals, which are in funnel-like manner facing inwards to each other and form extendible funnel cut. Protective case consists of two concentrically inserted into each other parts. Internal part of case contains a pair of petals. External part of case, which surrounds internal part, is made in form of cartridge, less elastic relative to internal part.

EFFECT: increase of user's safety.

3 cl, 5 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to manual protective re-applicable device for prevention of trauma by needle tip in people who use needles for sampling, transportation and/or injections of biological fluids, for instance blood. Manual protective re-applicable device for prevention of trauma by needle tip contains elongated case, which contains first hole on its first end, first protecting means and separating means for separation of reclosed with cap needle from first hole. First hole is made with possibility of location in it of closed with cap needle and holding cap after extraction of needle from it. First protective means extends outwards from first hole enough to provide protection for prevention trauma by needle tip, when user holds elongated case with one hand and uses the pother hand for inserting needle into cap, held in first hole, for reclosing, in such way, needle with cap. Elongated case contains second hole on its second end, second protecting means extending outwards from second hole enough to provide protection for preventing trauma by needle tip, passage, connecting first and second holes to each other. Separating means contains separating element, allowing shift with sliding on passage.

EFFECT: invention ensures protection of user's hands against trauma, when needle is reclosed with cap, and performs other functions, which facilitate safe manipulation with needle and utilisation procedures.

8 cl, 15 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medicine, in particular to devices for puncture morphologic diagnostics of soft tissue tumours. Device for puncture morphologic diagnostics of soft tissue tumours includes needle connected with syringe, guide needle and insulation catheter. Surface of operational needle is made sharp-ended rough with at least three lateral aspiration holes located on it. Operational needle with insulation catheter are placed inside guide needle.

EFFECT: simplification of construction, increased reliability and possibility of morphologic tumour diagnostics in fact in all cases, elimination of risk of hematogenic spread of metastases, guarantees of hemostasis.

1 dwg

FIELD: medicine.

SUBSTANCE: group of inventions refers to medical equipment and aims at injection of an active pharmaceutical component. All versions of said device contain retainers for prevention of medicine loss before injection. The first and second versions of the device comprise a case wherein there is a sectioned needle travelling along the central advance axis (X-X). The medicine is supplied to the needle. In the first and third versions of the device, the retainers are placed on the walkway of the needle. The needle is deformed with respect to the central advance axis (X-X) in the injection device when it passes through the retainers. In the second and fourth versions of the device, the retainers comprise an elastic flange ledge which when in rest seals the needle and is taken back when the needle advances.

EFFECT: reduced risk of implant fall-out during storage and transportation of the injection device to an injection place.

50 cl, 4 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices for injection, in particular device for intramuscular or subcutaneous injection of active pharmaceutical component in solid or semi-solid state, usually called implant. Device for injecting implant in the process of reverse injection operation into the subject skin includes hollow main body, to which attached is hollow needle into which implant is introduced, additional body, located coaxially inside main body and surrounding needle and rod with piston which can slide coaxially inside hollow needle. Included are means which allow rod with piston to preserve its position with respect to needle unchanged, when device for injection is pressed to the subject's skin and when additional body is pulled inside main body and which allows rod with piston to enter hollow needle for holding implant at the required depth in the subject's skin while hollow needle in withdrawn from the subject's skin, in which process additional body leaves main body. Device includes means for springy withdrawal of additional body from main body. Resilient means of reverse movement which control withdrawal of additional body from main body are released automatically bringing additional body into initial position, in which it surrounds hollow needle again.

EFFECT: invention considerably simplifies operation of implant injection.

29 cl, 32 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and deals with device for injection and, in particular device for intramuscular or subcutaneous injection of active pharmaceutical base in solid or semi-solid state, usually called implant. Device for implant injection into tissue includes hollow main body, to which attached is hollow needle into which implant is introduced; additional body, located coaxially inside main body and surrounding needle and rod with piston which can slide in axis direction inside hollow needle. Device for injection is located in such way that when device is pressed to tissue, main body can slide on additional body from proximal position into distal position allowing needle to penetrate into tissue. Between main body and rod with piston located are means of cohesion so that movement of said main body is accompanied by simultaneous movement of rod with piston. Means of cohesion are released in such way that rod with piston remain in fixed position and hold at the required depth in tissue until needle is not withdrawn from tissue, when main body returns into its distal position from proximal position. In the second version of implementation device for injection is held in such way that when pressure causing penetration of needle into tissue is executed on main body, rod with piston remains fixed and holds implant at the required depth till the moment when needle starts to be removed from tissue. Its withdrawal is controlled by main body which slides on additional body from initial position in which main body rests on distal end of additional body, into final position, in which main body rests on proximal end of additional body, rod with piston being gradually introduced into hollow needle.

EFFECT: invention is not complicated, which reduces risk of malfunction, in addition invention has limited number of units due to which is less expensive in manufacturing and simple in assembling.

52 cl, 24 dwg

Syringe // 2388499

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, in particular to single-use syringes for injections. Syringe contains balloon and bucket placed in the balloon. The bucket is equipped with a nipple for setting cannula on it with side outlet in ajutage. Syringe is placed in the balloon at the face plane of which elastic membrane is set. There is a cap with a hole for out-in traverse of a stock with this bucket on the other face plane of the balloon. The cup is equipped with folding with a hole placed opposite the hole in the stock. In the holes of folding and stock a puller stud is placed. Syringe touches elastic membrane with its nid.

EFFECT: rise of convenience of reference.

4 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to devices and methods of subcutaneous injections of medical products. An injection needle with the pointed working end with its point presenting a surface generated with an exponential of rotation about the longitudinal axis, interfaced with a cylindrical body, lies on the longitudinal axis of the needle with a central passage and round-edged side holes. The total sectional area of the holes is equal to the sectional area of the needle passage. The holes are double paired, opposed and inclined 45 to the longitudinal axis of the needle. The row displacement is 90. The external surface of the needle represents smooth longitudinal diametrical corrugations with flute depth that makes 0.2 of the external diametre of the needle, completely coated with a layer of porous gelatine with the uniform external diametre of the layer. The layer thickness in the thinnest places is 0.2 of the external diametre of the needle. The method of subcutaneous injection includes alcohol preparation of a desired skin area. This skin area is folded with the left hand. The fold shall be triangular with its base downwards. The second finger of the right hand holds the injection needle, the fifth finger of the right hand holds the piston, and the other fingers of the right hand hold the cylinder. The needle is quickly inserted into the triangle base at the angle 45 at the depth 1-2 cm between the first and the second fingers of the left hand. The solution is slowly injected, and the needle is quickly removed. Then the injection point is wiped with alcohol with pressing thereto a sterile alcohol-wetted cottonwool tampon for a short time. After alcohol preparation, the skin area is heated up to +42C. Before folding the skin, the fingers are heated to +42C. Immediately prior to the injection the needle is dipped in 96 ethyl alcohol at temperature lower than 30C. The chosen medical product is dissolved with an equal volume of 0.9% sodium chloride and heated to +42C and injected in amount 0.5 ml and less. Alcohol for tampon wetting is heated to +42C. The tampon is pressed until complete ultrasound-aided exsanguination of tissues within medicinal infiltrate with applying gel and the sensor heated to +42C, during 6 minutes. If introduction of greater volume is needed, new injections are made, at least 1 cm away from each other.

EFFECT: invention prevents postinjection bruises with lowered blood coagulation ensured by accelerated occlusion of the involved vessels.

2 cl, 2 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to vascular surgery, and can be used in treating the patients suffering from lower limb ischemia. That is ensured by instrumental preexamination to detect the affected region. Then palpation under spinal anaesthesia is used to localise posterior iliac crest, and along posterior iliac crest, a medical needle for bone marrow biopsy equipped with a mandrin and lateral apertures at its end is used for trepanopunctures of spongy substance of bone at pitch 1 cm and bone penetration depth 1-2 cm. Each puncture involves aspiration of bone marrow in amount 5-6 ml with a syringe 10 ml containing 0.5 ml of prepared mixture containing 0.9% NaCl 200 ml and heparin 5 ml. The total amount of the aspirated bone marrow is 400-600 ml. After each puncture the dissolved bone marrow is filtered and collected in a sterile air-tight package containing 43 ml of anticoagulant CPDA thereafter separated to produce mononuclear cells in amount 45-55 ml. To mark the points of cell material introduction, points in number 60 pcs at one injection per 4 cm2 of limb surface are drawn on shin and foot surface with a highlighter. Introduction is performed by intramuscular injections in the marked points in amount 1 ml at a depth 2-2.5 cm.

EFFECT: method allows improving clinical effectiveness of lower limb ischemia, including critical one, owing to intensified activity of local neoangiogenesis caused by release of introduced mononuclear cells of various growth factors and a number of cytokines.

2 ex

FIELD: medicine.

SUBSTANCE: invention refers to a device for the introduction of liquid dosage forms to a mammal, preferentially to a human, preferentially subcutaneously, in more detail, the present invention refers to an injection device able to transfer a non-visual feedback signal to the user to indicate that a specified dose is introduced by the injection device. The injection device contains a body, a dose adjustment element, a piston rod and a dosing mechanism. The dose adjustment element is actuated by the user to specify a required dose for injection. The rod is designed to interact with the piston to ensure the introduction of the adjusted dose from an ampoule. The dosing mechanism is designed to actuate on the piston rod to ensure the introduction of the adjusted dose. Besides the dosing mechanism is designed to transmit a non-visual feedback signal to the user after the dosing termination only. The first and second sections of the injection device rotate relatively to each other during dosing that causes at least two sections of the injection device to rest on or interlock with each other. Said rest or interlocking enables a non-visual feedback signal to be transmitted.

EFFECT: invention ensuring exact and non-visual indication of the dosing termination to the user.

12 cl, 15 dwg

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