Intervertebral disc endoprosthesis
SUBSTANCE: intervertebral disc endoprosthesis contains upper and lower axisymmetric and opposite supporting plates with serrated fixation elements in the bodies of the vertebrae on plates outer surfaces and elastic supporting-centering elements installed between them. The supporting plates are provided with annular beads on inner surfaces and located at different distances from the center by two concentric rows of holes located at the same angular distance from each other in staggered order. The supporting-centering elements are made in the form of V-shaped rod springs of round section with ends curved parallel to the supporting plates axes, embodied in their mirror located holes, vertices of springs, enshrined in holes of rows proximal to the plates axis are facing outwards, and distant - facing the axis, and placed accordingly in radial notches on the outer and inner forming cylindrical surfaces of the flat sprung-separation ring installed between the springs vertices. The cavity formed by the supporting plates is filled with bioinert elastoplastic material.
EFFECT: simplified design by excluding movable joints with external friction, dimensional, mechanical wear-prone joints from the composition of its supporting-centering element, absence of wear debris falling into the human body tissues, and consequently, of the need to remove them during inspection, ensuring the stability of relative position elements of the implant, simplified manipulation for its installation, increased service life of the implant and reduced duration of surgery.
FIELD: medicine, pharmaceutics.
SUBSTANCE: group of inventions relates to field of medicine and can be used for dental prosthetics. Dental composition contains polymerisable resin, which has ethylene-unsaturated group, as well as thermally activated initiator, dissolved in resin, and inorganic filling agent, mixed with resin, in amount, larger than approximately 60 wt % of composition weight. Initiator is activated at temperature from approximately 100°C to approximately 150°C with formation of free radicals. Initiator does not induce formation of compounds, initiating formation of free radicals in amounts, sufficient for inducing polymerisation, at temperatures below approximately 100°C. Filling agent represents nanoclaster and has surface area at least 65 m2 per gram of filling agent. Blank for dental prosthetics, method of its manufacturing, and set for prosthetics are also disclosed.
EFFECT: group of inventions provides obtaining composite blank, which possesses considerably larger strength and wear resistance, as well as has better aesthetic characteristics.
16 cl, 2 dwg, 8 tbl, 2 ex
SUBSTANCE: invention refers to medicine and can be used to increase the convenience and reliability of the inguinal hernia repair. An inguinal hernia alloplasty device is configured as a synthetic mesh prosthesis with an attached demountable frame. The frame is made of a biologically inert metal wire to make the mesh prosthesis flat in a wound. The frame has two elements longitudinal with respect to the synthetic mesh prosthesis and connected by an element transversal with respect to the synthetic mesh prosthesis and dividing the longitudinal elements by short and long segments. The short segments of the longitudinal elements are 0.3-1.0 cm long and formed by twisting the frame wire. The long segments of the longitudinal elements are wave-shaped along the entire length in the frame plane or shaped as rings directed inwards and lying in the same plane. The longitudinal elements of the frame are arched towards each other. In the middle one-third, the long segments of the longitudinal elements of the frame have twists directed inwards and made of the double frame wire 0.3-1.0 cm long.
EFFECT: more effective surgical management of inguinal hernias.
10 cl, 9 dwg
SUBSTANCE: invention refers to medicine, particularly to vascular and endovascular surgery, and can be used to assess the state of an isolated aneurismal sac after a stent graft implantation by measuring a pressure inside the sac, as well as for introducing drugs into the blood vessel aneurism as it may be required. The device for pressure measurement in the isolated cavity of the aneurismal sac and for drug introduction into the blood vessel aneurism is configured as a hollow tube. The tube has side holes and is configured to reshape when inserted into the aneurism, to fill its inner space circumferentially, to attach by a two-piece hollow tube to a pressure sensor to measure a pressure between the vascular wall and the wall of the stent graft implanted into the blood vessel, as well as to introduce drugs by means of the above two-piece hollow tube. The tube is made of a viscoelastic absorbable material and spiral-shaped.
EFFECT: invention enables solving a set of challenges: saving the manufacturing expenses, simplifying the course of the surgical intervention, measuring the pressure, introducing the drugs, improving the immediate and remote results by ensured thrombosing of the aneurismal sac.
5 cl, 3 dwg
SUBSTANCE: endoscopic installation of a covered metal self-extending stent is performed into a lumen of the duodenum with a source of bleeding or an ulcerous wall defect. Applied is the stent with a diameter of an opening of not less than 22 mm. In order to perform installation the delivery device of the stent is passed behind the area of bleeding. After that the stent is placed in such a way that its funnel-shaped extended edges tightly rest against walls of the duodenum, creating a closed cavity between the proximal and distal edges of the stent.
EFFECT: method makes it possible to ensure reliable haemostasis, effective sealing of the area of the tubular organ wall defect and prevent its contact with physiological liquids due to which ensure the prevention of development of complications, accompanying the main disease.
2 cl, 1 ex, 2 dwg
SUBSTANCE: group of inventions relates to medical devices, containing highly-strong alloy, eventually subjected to degradation in human or animal organism, at adjustable degradation rate, without formation of emboli. Described is device for bone fixation, such as fixer, screw, plate, support or rod, made from alloy, as well as device for tissue fixation, such as staple, made from alloy. Dental implant or stent, made from alloy, is described.
EFFECT: alloy-containing devices possess required steel-associated properties, being simultaneously biodegradable.
22 cl, 8 ex
SUBSTANCE: invention relates to medical equipment, namely to suppository devices, applied against urine incontinence in women. A non-expandable intra-vaginal suppository device is made with a possibility to produce alternating pressure on the woman's urethra along its length, when introduced into the woman's vagina. The device has a top, a base and a lateral wall, extending between the top and base. The lateral wall, the top and the base form a closed outer periphery, determining the total area of the device. The device contains an internal part, in fact, closed by the top, base and lateral wall. The lateral wall contains a lower convex part, the middle section and a convex upper part. The convex upper part connects the base with the middle section, and the convex upper part connects the top with the middle section. The middle section has the maximal diameter, smaller than the maximal diameter of the convex lower and the convex upper part. The convex lower part and the convex upper part are made with a possibility to provide pressure on two different places on the woman's urethra, when the device is introduced into the woman's vagina. The suppository device is characterised by the length, measured along the longitudinal axis, shorter than 60 mm.
EFFECT: invention is suitable for the daily application, has a small size and, nevertheless, is sufficiently effective and more comfortable in application.
8 cl, 8 dwg
SUBSTANCE: invention relates to the field of medicine, namely to devices for the treatment of the vasculature and other ducts, which can be used for the treatment of the vasculature occlusion, as well as aneurisms, formed in the brain. A device for the treatment of the vasculature and ducts in an organism contains an elongated self-extending element, made with the possibility of extension from the first supply position into the second installation position. In the first position the elongated self-extending element is in a non-extended position and has the first diameter. In the second position the extending element is in an extended by radius position and has the second diameter, exceeding the first diameter. The elongated self-extending element contains a multitude of cellular structures. The elongated self-extending element has the proximal terminal section with the proximal end and a cylindrical section of the main case. Cellular structures on the cylindrical section of the main case pass on the circumference around the longitudinal axis of the elongated self-extending element. Cellular structures on the proximal terminal section do not pass along the entire circumference around the longitudinal axis of the elongated self-extending element. The proximal cellular structures on the proximal terminal section contain angle braces with the larger width than the angle braces of the cellular structures on the cylindrical section of the main case.
EFFECT: invention provides the improved device for the treatment of the vasculature and other ducts in the organism such as, for instance, aneurisms, stenoses, embolic obstruction, etc.
19 cl, 29 dwg
SUBSTANCE: lower lachrymal point is expanded. A probe is projected along a lower lachrymal duct all the way to the bone. A light guide is delivered through the expanded lower lachrymal duct all the way to the bone and fixed manually. A nasal cavity is visualised with an endoscope. Bone tissue of a lateral wall of the nasal cavity is burned through with endoscopically controlled laser light until the laser light appears in the nasal cavity. That implies using a diode laser at wave length 970 nm, emission power 6-7 Wt, in the continuous mode. An endoscopically controlled drain tube is inserted into the formed fistula through the nasal cavity by means of a plastic injector 10.01 mm long, 2 mm in diameter. The drain tube is 8.4 mm long. An external diameter of the cylindrical portion is 3 mm, whereas an internal diameter is 2 mm with the length of 6 mm. For the purpose of fixation in the lachrymal sac, an implanted end of the drain tube has deformable fletching elements 5 mm in diameter, 1 mm wide from each side, and 3.2-3.5 mm in flexion diameter. At the opposite side of the drain tube, there is a pad 5 mm in diameter fixed in the nasal cavity. Along the entire drain tube, there are grooves 0.25 mm wide, 8-8.1 mm long for additional outflow of the lachrymal fluid.
EFFECT: method enables preventing recurrent atresias of the formed fistulas between the lachrymal sac and nasal cavity by long-term postoperative drainage of the formed fistula.
FIELD: medicine, pharmaceutics.
SUBSTANCE: invention relates to medicine, namely to implanted medical devices. A device for drug delivery includes an implanted intra-lumen framework, which has a luminal surface and abluminal surface; a multitude of through hollows in the intra-lumen framework, where each of the multiple through holes contains a composition, selected from the following groups. Compositions of a mTOR inhibitor and base structure, which has the configuration, which will make it possible for the mTOR inhibitor in the composition of the mTOR inhibitor to elute, mainly in the abluminal direction for seven (7) to one hundred and twenty (120) days, with the composition of the mTOR inhibitor containing a polymer in a combination with the mTOR inhibitor and the base structure containing a multitude of polymer layers with the absence of mTOR inhibitors; compositions of a phosphodiesterase III inhibitor and an upper covering structure, which has the configuration, making it possible for the phosphodiesterase III inhibitor in the composition of the phosphodiesterase III inhibitor to elute, mainly in the luminal direction for five (5) to sixty-one (61) day, with the composition of the phosphodiesterase III inhibitor containing the polymer in a combination with the phosphodiesterase III inhibitor, and the upper covering structure containing a multitude of polymer layers in the absence of the phosphodiesterase III inhibitor.
EFFECT: invention makes it possible to provide independent on each other rates of sirolimus and cistazol release, simultaneously providing the targeted delivery of each of the medications.
6 cl, 30 dwg, 7 tbl
SUBSTANCE: femoral artery is punctured on the right to place an introducer therein. The radial artery is punctured to connect a roller pump for arterial blood sampling. The subclavian or internal jugular vein is punctured to approach the coronary sinus to place a retro perfusion balloon. The retro perfusion balloon is inserted into a proximal segment of the great or middle cardiac vein. The balloon is inflated, and retro perfusion is performed at 20 ml/min accompanying the balloon angioplasty and/or stent implantation. The balloon is blown off after an antegrade blood flow is recovered.
EFFECT: method enables reducing a risk of intraoperative and postoperative complications, reducing a risk of haemorrhages, thromboses and ischemia of an extremity by puncturing the radial artery.
SUBSTANCE: invention refers to medicine. What is described is a cage for total extended long bone defect restoration representing a hollow cylinder made of a carbon-carbon composite walls of which are perforated with multiple through holes providing surrounding tissue adhesion and blood vessel penetration inside the cylinder. An inner lumen of the cage is filled with a xenogenic osteoplastic material with an axial through hole used to facilitate a fixation procedure.
EFFECT: cage makes it possible to deliver the osteoplastic material to the defect region, prevents its migration and enables improving the results of the long bone defect correction outcome by the reliable fixation of the osteoplastic material within the defect region due to optimum strength characteristics of an outer support frame, the effective regeneration within the defect region by the osteoplastic material, the absence of adverse effects of the long-term implantation, and as a result no necessity to remove the cage, and ensured possibility of the intraoperative adjustment of the cage size depending on the defect size.
SUBSTANCE: unilateral interlaminar access to the intervertebral space is performed. After decompression and medial displacement of roots and the dural sac a restrictor is installed for their protection. Direction and height of the interbody space are specified by means of the butt end mill. The claimed intervertebral implant for operations of posterior spondylosyndesis is screwed into a prepared space in an oblique-transverse direction. The implant contains a metal hollow cylindrical body with through holes in the side surface and a transverse partition with a slot for the instrument in one of the butt ends. It is provided with a screw thread on the outer lateral surface with the thread profile in the form of a cone not lower than 2 mm high. The thread profile is made with a truncated tooth apex not more than 0.3 mm wide. The thread step constitutes from 1.6 to 2.0 heights of the thread profile, the angle of the tooth profile constitutes 20-35°. A part of the outer lateral surface, adjoining the butt end, opposite to the transverse partition, is made with a conic slant.
EFFECT: method ensures the reliability of posterior spondylosyndesis due to the application of the claimed intervertebral implant for the operations of posterior spondylosyndesis.
4 cl, 5 dwg, 2 ex
SUBSTANCE: group of inventions relates to medicine. A disc implant contains the first and second intervertebral elements. The first intervertebral element forms the first internal surface, which contains the first central area, and the first external surface. The second intervertebral element forms the second internal surface, which contains the second central area, and the second external surface. The first and second internal surfaces of the first and second intervertebral elements are adapted to placement in a smoothed, directed towards each other position. The first and second external surfaces of the first and second intervertebral elements are adapted to placement in a position, directed from each other, and are made with a possibility of placement adjacently to the respective vertebrae of the patient's vertebral column. The first central area forms the first profile, made with a possibility of placement in the medial-lateral direction relative to the said patient's vertebral column, which is formed by one arc, and the second profile, made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which (i) passes from the anterior edge of the first central area to the posterior edge of the first central area and ii) is formed by at least two arcs. The second central area is formed by the first profile, made with a possibility of placement in the medial-lateral direction relative to the patient's vertebral column, formed by one arc. The second profile is made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which passes (i) from the anterior edge of the second central area to the posterior edge of the second central area and (ii) is formed by a straight line. A unit of the disc implant and a device of the posterior vertebral column stabilisation contain the disc implant, adapted to placement between two vertebrae of the patient's vertebral column, and a device of the posterior stabilisation of the vertebral column. The disc implant is adapted to placement between two vertebrae of the patient's vertebral column and includes the first intervertebral element, forming the first internal surface, which contains the first central area, and the first external surface; and the second intervertebral element, which forms the second internal surface, which contains the second central area, and the second external surface. The first and second internal surfaces of the first and second intervertebral elements are adapted to placement in a smoothed, directed to each other position. The first and second external surfaces of the first and second intervertebral elements are adapted to placement in a position directed from each other, and are made with a possibility of placement adjacently to the respective vertebrae of the patient's vertebral column. The first central area forms first the profile, made with a possibility of placement in the medial-lateral direction relative to the said patient's vertebral column, formed by one arc, and the second profile, made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which passes from the anterior edge of the first central area to the posterior edge of the first central area and is formed by at least two arcs. The second central area is formed by the first profile, made with a possibility of placement in the medial-lateral direction relative to the patient's vertebral column, which is formed by one arc and the second profile, made with a possibility of placement in the anterior-posterior direction relative to the patient's vertebral column, which passes from the anterior edge of the second central area to the posterior edge of the second central area and is formed by a straight line. The device of the posterior stabilisation of the vertebral column provides the support of at least the disc implant and two vertebrae.
EFFECT: inventions provide the movement of the first and second intervertebral elements relative to each other after implantation and after mobilisation of the patient, which makes it possible for the implant to take the required position depending on the specific and individual spinal-pelvic balance of the patient in an initial period of time after implantation, with the first and second intervertebral elements becoming immobile with respect to each other later, ie inoculated.
20 cl, 21 dwg
SUBSTANCE: device for the correction of displaced cervical articular process positions comprises a composite body of a head and a cylindrical base, upper and lower supporting platforms, outer surfaces of which face the vertebral bodies and have pointed flanges. The upper supporting platform is mounted on the head of the composite body. The upper portion of the base comprises a T-flange, projection sides of which are guides for female grooves mounted in the lower portions of the head. The head and base are connected by a thread rod having smooth ends, a diameter of which is less than the diameter of the middle thread portion of the rod. One end of the rod is provided with a closed hole for a box spanner, is mounted in a transfer sleeve having a thread along the outer side surface and a slot at the end face. The sleeved rod is mounted in a through hole in the composite body perpendicular to its long axis. The threaded sleeve thread is created in the hole only in the portion of the base, while the thread of the middle of the threaded rod - on the portion of the head of the composite body. The device also comprises an end plate that can be detachably laid on the head of the composite body The upper surface of the above plate has a horizontal portion with notches inserted into the vertebral body at the side of the dislocation, while two adjacent smooth portions inclined at various angles are mounted on the side of the intact articular process. The lower supporting platform having four diametrical vertical notches on the side surface is integrated with vertical and central threaded rod having four long grooves, a position of which corresponds to the position of the above notches, and a recess on the free end. A cup with a through hole in the middle provided with a long projection is formed on the rod; the hole has the shape and size corresponding to the long grooves on the rod; the notch of the side surface is coaxial with the flange in the hole on the vertical threaded rod. The cup bottom comprises a nut having radical through holes along the mid-line of the outer surface. The vertical rod with the mounted nut is mounted in a step cylindrical cavity arranged axially in the cylindrical base of the composite body. The nut is provided in the cavity with the greater diameter open to the bottom of the cylindrical base. Along the outer surface of the bottom of the base and the inner surface of the cup, there is a thread used to flush connect these parts along the outer surface of the cup and base. There is a window formed from the cup bottom to the height of the nut by the surface section at the mid-diameter. The upper portion of the head comprises a T-flange identical to that on the base of the composite body, side flanges of which are guides for the female grooves mounted in the lower portions of the end plate. Along the inner horizontal surface of the plate, above the grooves, there is a rectangular hollow for mounting the upper supporting platform. Two thread holes for a retainer are created along the side surfaces of the base of the body, and one - along the front surface of the end plate under the horizontal flange. A method for the correction of displaced cervical articular process positions involves placing the patient on a table in the lying position with a roller placed under his/her shoulders under general anaesthesia, performing a standard approach to anterior structures of the vertebral body under its dislocated or fractured body with removing super- and subjacent disks and bone fragments. The above device is laid into the formed compartment. The end plate is laid on the head of the composite body; the angles on the upper surface of the plate shall correspond to the fracture nature, right- or left-sided, of a different height and length so that the upper horizontal platform of the end plate is arranged on the side of the dislocation close to the articular processes of the vertebrae, while its inclined surfaces faces the intact articular process. The nut is rotated with a special instrument, and a working end is alternatively inserted into radial surfaces to lift the composite body in relation to the lower supporting platform. That is followed by performing distraction until translation of the body along the vertical threaded rod along the lower supporting platform is blocked. The device is rotated with the instrument mounted into the holes on the side surfaces of the body. Geared articular processes of the vertebrae are disconnected by EOP control according to pre-calculated CT or visual data, the base is kept to be rotated until the flange on the cup bottom falls into the long groove on the vertical threaded rod. The distraction is reduced by rotating the nut backwards to place the dislocated articular process back into its physiological position. The distraction is kept to be released to enable removing the end plate with an instrument freely. Tension in the vertebral compartment with the installed device is created by generating slight distraction. The device is remained installed in the bed as a body-substitute implant. Layered sutures are applied.
EFFECT: more effective reduction of one-side dislocations and dislocation fractures of cervical spines, lower labour input and injuries accompanying manipulations, enabled prevention of potential undesired complications.
2 cl, 4 dwg
SUBSTANCE: according to the first version, a spinal stabilisation device comprises an interbody vertebral insert and a holding fixture. The interbody vertebral insert is supposed to be inserted between the upper vertebral body and the lower vertebral body, and comprises a top surface facing the lower vertebral end plate of the upper vertebra, and a bottom surface facing the upper vertebral end plate of the lower vertebra. The holding fixture comprises a support preventing the interbody vertebral insert from escaping from the space between the upper and lower vertebral bodies towards the holding fixture and supported by a part of the surface of the interbody vertebral insert. The support comprises a number of fastener holes. The holding fixture additionally comprises a number of fasteners. Each fastener comprises a tubular element modelling a cavity open from a proximal side and a hole of the tubular element. The cavity is open in towards the bone. Provided is a binder, which is located in the cavity, or is configured to be introduced into the cavity from the proximal side. Each fastener is configured to be inserted into one of the inlet holes. The binder is provided to be introduced in the liquid state at least partially through the above hole of the tubular element into the bone tissue of either the upper vertebral body, or the lower vertebral body; that is followed by the infiltration of the bone tissue and hardening, providing the attachment of the tubular element to the vertebral body. According to the second version, the spinal stabilisation device comprises the interbody vertebral insert and an anchor fixture. The interbody vertebral insert is inserted between the upper vertebral body and the lower vertebral body and comprises the top surface facing the lower vertebral end plate of the upper vertebral body and the bottom surface facing the upper vertebral end plate of the lower vertebral body, and a groove socket extending in the top surface to the front end and the groove socket extending in the bottom surface to the front end. In the area of the above groove sockets, the interbody vertebral insert is provided with a structural element to form a strength joint together with the hardened liquid material having filled the above structural element. The anchor fixture is provided for each groove socket. The above anchor fixtures comprise a proximal end, a distal end and the first attachment section, the second attachment section and a bridge between the first and second attachment sections. The first and second attachment sections project distally behind the bridge and comprise a dissolved material thereby making it possible to anchor the first attachment section in the bone tissue and to anchor the second attachment section in the above structural elements by dissolving the dissolved material leading to the penetration of the above material into the bone or into these structural elements with the above material to be hardened. A method for the implantation of the spinal stabilisation device into the space between the two vertebral bodies comprising the following stages: presenting the device according to the first embodiment, inserting the interbody vertebral insert into the above space, resting the support of the holding fixture in the anterior, or anterolateral, or lateral, or posterolateral, or posterior end surface of the interbody vertebral insert, and anchoring the holding fixture in the intervertebral body. The stage of anchoring involves sub-stages providing the indention of the diluted boiling material into the spongy bone tissue of an intervertebral body and hardening of the above material so that the above material forms the strength joint with the bone tissue. A kit of components for the implantation of the spinal stabilisation device into the space between the two vertebral bodies comprises the device according to the first or second embodiment, and a fastening tool.
EFFECT: inventions provide preventing the damage of important blood vessels passing along the anterior portion of the spine.
34 cl, 61 dwg
SUBSTANCE: group of inventions relates to medicine. A knitting device for knitting a human or an animal joint contains at least one anchor part and at least one support part and additionally contains two rod-like anchor parts and one support part. In its general depth (D), measured from a proximal surface to a distal end of the knitting device, the knitting device is oriented parallel to the direction (I) of implantation, and in its general width (W) and the thickness profile (T1 and T2) the knitting device is oriented perpendicular to the direction (I) of implantation. The anchor part and the support part are alternating or are made with a possibility of alternation along the width (W), with the thickness (T1) of the said at least one anchor part being larger than the thickness (T2) of the said at least one support part. The said at least one anchor part contains a material which is liquidised, with the material, which is liquidised, representing a thermoplastic material and being located on the surface of the anchor part or inside a perforated envelope, forming a part of the anchor part. The said surface of the anchor part or the said perforated envelope is placed on the knitting device in such a way that they are capable of coming in contact with the bone tissue in the process of implantation. The support part is placed between the anchor parts, and the anchor part has a depth which is larger than the depth of the support part. The support part, if possible together with the anchor part, forms a concave profile of the device and in this way limits an osteoconduction area. The method of knitting the human or animal joint in accordance with the first version contains the following stages: provision of the availability of the said knitting device, preparation of at least one of joined surfaces and introduction of the knitting device in such a way that the said at least one anchor part comes in contact with the bone tissue in the area of the said at least one prepared surface to be joined. A sage of introduction includes the supply of energy to the proximal surface of the knitting device due to its connection to a vibration or rotation drive or to a source of energy of electromagnetic radiation of visible or infrared range in the process of introduction or after the introduction and switching on a drive or a source for the time sufficient for liquidising of at least part of the material to be liquidised and penetration of the liquidised material into the said bone tissue, where after solidification the liquidised material forms with the said bone tissue a compound with the positive tightness. In accordance with the second version the method contains the following stages: provision of availability of the said knitting device, preparation of at least one of the joined surfaces and introduction of the knitting device in such a way that the said at least one anchor part comes in contact with the bone tissue in the area of the said at least one prepared surface to be joined. In accordance with the third version the method contains the following stages: provision of availability of the said knitting device, fixation of the joined surfaces in a preliminarily specified mutual position, introduction of the knitting device between the fixed surfaces to be joined and release of fixation of the surface to be joined. A set of instruments for knitting a synovial human or animal joint contains vibroinstrument or a pusher and the said knitting device or a part of the said device, installed or to be installed on th distal end of the vibroinstrument or pusher.
EFFECT: inventions provide the joint immobilisation to a degree sufficient for doing without additional fixing elements, optimal osteoconduction between two bones of the joint and preferably optimal osteointegration into the bone tissue with a possibility of application in minimally invasive surgery.
21 cl, 20 dwg
FIELD: medicine, pharmaceutics.
SUBSTANCE: invention relates to chemical-pharmaceutical industry and represents substitute of bone transplant, containing osteogenic agent and zeolite, which contains particles, containing ion-exchange cations of metals, present in quantity, effective for stimulation of osteogenesis in patient who needs it, in which said metal cations are selected from the group, consisting of zinc ions, silver ions, copper ions and their combinations.
EFFECT: invention provides optimal delivery of cations into injured region with resulting formation of healthy bone tissue.
SUBSTANCE: telescopic vertebral prosthesis comprises an upper cylindrical base with its end face comprising an upper rest pad, a lower cylindrical base with its end face comprising a lower rest pad, a ring coupling and prosthesis height adjusters. The externally threaded upper cylindrical base and the internally threaded ring coupling form a screw pair. The lower cylindrical base with the ring coupling form a movable rotary coupling geared by a circular groove and the ring coupling. The end face of the upper rest pad and the end face of the lower rest pad comprise holders and slots. A side surface of the lower cylindrical base comprises slots. The holders are belted along the external perimeter of the upper and lower rest pads uniformly. An arrow-type holder can have a rectangular- or round-sectioned leg and tip. The tip profile has straight or concave borders. The telescopic prosthesis is implanted from a ventral approach to a lesion using common ventral surgical techniques. The prosthesis is inserted between healthy vertebrae by a relative rotation of the ring coupling to adjust the desired elevation of the prosthesis as shown by the pressure transducer readings. The prosthesis height is adjusted at the moment of pressure being within the range of 150-200 mm Hg. The arrow-type holders are belted along the external perimeter of the upper and lower rest pads.
EFFECT: enabling reliable restoration of the primary mechanical stability, forming further secondary metal/osseous unit and avoiding recurrent surgical intervention.
11 cl, 5 dwg
SUBSTANCE: group of inventions relates to the field of medicine and medical equipment, namely to neurosurgery. A treatment is performed with application of the subatmospheric pressure. A porous material is placed near an affected CNS tissue in such a way as to provide passage of gases between pores of the material and tissues of the affected CNS. As the porous material is used ispolydiolcytrate-containing electrospun material, or a material, obtained by print technology, or a cast material. The porous material is functionally connected with a vacuum system and the subatmospheric pressure is created in the affected tissue. The porous material is packed near the affected CNS tissue in such a way as to preserve the subatmospheric pressure in the affected CNS tissue. A device contains a biologically disorbable porous material, which includes polydiolcytrate-containing electrospun material and has the structure, making it possible for gases to penetrate between the pores. On the surface, located near the affected CNS system, the porous material has sufficiently small pores to prevent growing of tissue into them. Source of rarefaction, creating the subatmospheric pressure, for supply of the subatmospheric pressure to CNS tissue, which undergoes treatment.
EFFECT: group of inventions makes it possible to reduce the number of complications due to reduction of excessive accumulation of water in tissue.
71 cl, 5 tbl, 18 dwg, 2 ex
SUBSTANCE: retainer for spinal ligament and bone structure prosthetic repair is presented in the form of a rod made of a shape memory material and has working and holding portions. The working portion is sinusoidally-curved and arranged in two planes intersecting along the sinusoidal axis at an angle of 120°. The holding portions are provided at the ends of the working portion and represent hooks with their ends turned up towards the working portion. The hooks are arranged in the plane passing through the sinusoidal axis at an angle of 90 to 120° to one of the planes of the working portion.
EFFECT: coverage of a lamination window and expansion of a spinal canal protected against the pressure of surrounding tissues within its original stenosis, and generated compression of vertebral arches adjoining the operated segment and having an adequate compression of resected yellow ligaments.
2 cl, 2 dwg
SUBSTANCE: invention refers to ophthalmology and may be applicable for treating paretic squint. The surgical management is preceded by measuring the eyeball length, determining the hyper- or hypofunction of eye muscles force at an angle of deviation of visual line of squint. A recession of the internal rectus muscle is determined depending on a degree of hyperfunction of the internal rectus muscle of the eyeball and the angle of deviation. An external rectus muscle of the eyeball is resected depending on the angle of deviation.
EFFECT: method enables eliminating the imbalance of eye motion coordination.
4 tbl, 2 ex