30results about How to "Protect blood supply" patented technology

The invention discloses an interbody fusion apparatus. The interbody fusion apparatus comprises an interbody fusion apparatus body, both the upper surface and the lower surface of the interbody fusion apparatus body incline inwardly gradually from front to back, at least two interbody fusion locking hole groups are formed in the interbody fusion apparatus body, each interbody fusion locking hole group includes two locking screw holes penetrating the interbody fusion apparatus body, an inlet end and an outlet end of one of the locking screw holes in each interbody fusion locking hole group are formed on the front lateral face and the upper surface of the interbody fusion apparatus body respectively, an inlet end and an outlet end of the other locking screw hole are formed on the front lateral face and the lower surface of the interbody fusion apparatus body respectively, and an axis of each locking screw hole is ensured to form an included angle at 37-43 degrees with a horizontal section of the interbody fusion apparatus body and to form an included angle at 2-3 degrees with a vertical section of the interbody fusion apparatus body. The interbody fusion apparatus has the advantages that operation is simple, no incisura is generated, and people feel no foreign body after operation.

The invention discloses an integrated fixing device for an olecranal fracture. The integrated fixing device comprises a banded knitted part and a rope bolt, wherein one end of the banded knitted part is connected with the tail end of the rope bolt; the other end of the banded knitted part is connected with a traction needle; the rope bolt is arranged in an olecranal fracture part for connection; and the banded knitted part is pressed on the olecranal fracture part and is tightened and fixed. The integrated fixing device has excellent biocompatibility; stimulation of implants to the implanted part is avoided; the difficulty that the implants need to be taken out by a secondary operation is avoided; the banded knitted part has relatively low elasticity modulus; blood supply of the fixed part is effectively protected when efficient fixation is provided; the postoperative pain of a patient is reduced; the recovery cycle of the patient is shortened; the banded knitted part provides an effective fixing mode for the slight comminuted olecranal fracture; and in addition, 'minimally invasive idea' is introduced, so that the problems that a previous surgery is complicated in operation, large in wound, serious in post operational pain and local stimulation and the like are solved.

The invention discloses a percutaneous bone grafting apparatus, which belongs to an apparatus for grafting a bone in an orthopedic operation. The percutaneous bone grafting apparatus comprises a bone grafting sleeve, a soft tissue separation cone and a drive-in device; a body of the bone grafting sleeve has a hollow structure, one end of the bone grafting sleeve is provided with a feeding hole, the sleeve wall above the feeding hole is trumpet-shaped, and the sleeve wall under the feeding hole is groove-shaped; a body of the soft tissue separation cone has a hollow structure, the head of the soft tissue separation cone is of a blunt circle, and the tail is provided with a conical cap; and a drive-in device body has a T-shaped structure, the head of the drive-in device body is provided with a propulsion platform, and the tail is provided with a drive-in platform. Three apparatuses form a set; the apparatus is combined and used with a Kirschner wire and closed reset inner fixing technology; and under the guide of the Kirschner wire, a hollow soft tissue separator is guided into the bone grafting sleeve, and a bone grafting material is pushed to a destination bone grafting area by using a handle so as to achieve the purpose of percutaneous bone grafting. The percutaneous bone grafting apparatus protects blood circulation around fracture, promotes fracture healing, and can effectively repair bone defects, enhance the bone grafting effect and accelerate limb recovery of patients. The apparatus has a simple structure, is convenient to use, and realizes the purpose of closed bone grafting.

The invention discloses an anti-rotation hollow screw, which comprises a hollow screw body. A plurality of first through holes is arranged on the outer side wall of the hollow screw body, an inner core is inserted into the hollow screw body, second through holes are respectively disposed on each of the inner core sidewalls corresponding to each of the first through holes, guide rods are disposed on the inner wall of the inner core, and one side screw is respectively mounted on each of the guide rods, and the side screw includes a turbine end and a self-drilling self-tapping screw head. a guiding hole is arranged in a middle portion of the turbine end, a guiding rod is inserted into the guiding hole, a plurality of turbine teeth are arranged outside the turbine end, a threaded tooth havinga helical structure is arranged on a worm corresponding to the thread tooth groove position, an adjusting block is arranged at one end of the worm near a head of the hollow screw body; a lower bearingand an upper bearing are respectively embedded in a lower bearing groove and an upper bearing groove, a sealing cover is embedded in the upper bearing groove above the upper bearing, and limiting blocks inserted into a clamping slot are symmetrically disposed on both sides of the outer wall of the inner core; the adjusting block is connected with a wrench, and the head of the hollow screw body isprovided with a limit cover.

The invention discloses a fixing device for a patella fracture. The fixing device comprises a strap-shaped knitting part and hollow screws. A traction needle is connected to at least one end of the strap-shaped knitting part. The hollow screws are arranged in reserved drill holes in the patella fracture. The strap-shaped knitting part penetrates into center holes of the hollow screws under driving of the traction needles and presses the patella fracture in an intersecting mode. The fixing device has excellent biocompatibility, stimulation on the implanting position from the implantation material is avoided, and the problem that the implantation material needs to be taken out through a secondary operation is solved; the strap-shaped knitting part has low elasticity modulus, the screws have a dynamic pressurizing characteristic, blood supply to the fixed part is effectively protected while efficient fixing is provided, postoperative pain of a patient is relieved, and the rehabilitation period of the patient is shortened; the strap-shaped knitting part provides an effective fixing mode for the slight comminuted patella fracture.

The invention relates to a trace slide type unstressed shielding steel plate, in particular to a fixing steel plate for fracture treatment, which is characterized in that a plate body is orderly provided with a near end tack hole, a plurality of intermediate tack holes and a far end tack hole, wherein the through holes of the intermediate tack hole and the far end tack hole are used for placing bolts; a removable slide lock is arranged in the near end tack hole; and the through holes on the slide lock are used for placing the bolts. In the invention, the bolts of the intermediate tack hole are arranged in a removable mode; the near end tack hole is provided with a slide block; the far end tack hole is provided with an inclined slop; and the slide block and the inclined slop can pressurize the fracture end. The trace slide type unstressed shielding steel plate has the following beneficial effects: (1) having no stress shielding problem, healing under stress, and reducing secondary fracture after being taken; (2) eliminating residual gap of the fracture end after absorbing; (3) ensuring that the fracture end is only pressurized without separation; (4) enabling the fracture end to fret so as to prompt the fracture to heal; (5) ensuring the axial stress stimulation on the fracture end so as to promote fracture healing; and (6) adopting inner surface point type contact which is beneficial to blood supply protection so as to promote the fracture healing.

The invention relates to a novel bone fracture plate which comprises a bone fracture plate body and a screw. The novel bone fracture plate is characterized in that one of the surfaces of the bone fracture plate stretches across the two sides of a bone fracture line; at least two supporting columns are arranged on each side of one of the surfaces of the bone fracture plate; a screw hole is formed in the bone fracture plate body; the screw is inserted into the screw hole from the other side of the bone fracture plate, passes through the supporting columns and finally enters a cortical bone to complete bone fracture fixation; or the two adjacent supporting columns are fixedly connected with the bone fracture plate body on the two sides of the screw hole; the screw directly enters the cortical bone to complete bone fracture fixation after being inserted into the screw hole from the other side of the bone fracture plate body. Compared with the prior art, the novel bone fracture plate provided by the invention has the advantages that the damage caused by regular operation to blood supply for a bone fracture segment can be avoided, so that bone fracture healing is facilitated; 'inner fixation' is not needed to be taken through operation in the second-time hospitalization, so that the hospitalization expense can be effectively reduced.

The invention discloses a magnetism guided reduction and fixation device for orthopedic surgery. The device comprises a reduction tong body and a guide structure, wherein the guide structure comprises guide apparatus and a magnetic metal ball I; the guide apparatus comprises a guide ball, spherical fixing shells, a positioning pin, a locking bolt and a guide pipe, and the guide ball can freely rotate relative to the central axes of the spherical fixing shells at very low friction force; the positioning pin and the locking bolt can position and lock the guide ball. By means of the technical scheme, a screw can be accurately implanted in orthopedic surgery of some parts in a minimally invasive manner, and repeated, tentative and temporary fixation and excessive X ray irradiation to a patient are avoided; the guide structure in the technical scheme has the advantages of being accurate in guide and simple, convenient and stable to position.

The invention relates to a special-shaped rib surrounding bone fracture plate. The bone fracture plate is characterized by being provided with a main trunk, wherein 2-6 pairs of symmetric surrounding arms are arranged on the main trunk; the main trunk is arc-shaped; the 2-6 pairs of surrounding arms are uniformly arranged at the two ends of the main trunk; one end of the main trunk is provided with large-diameter surrounding arms, and the other end of the main trunk is provided with small-diameter surrounding arms; the diameter of the large-diameter surrounding arms is greater than that of the small-diameter surrounding arms; the entire bone fracture plate is conical. During use, a proper product can be selected according to the fracture shape of a rib, one larger-diameter segment is used for fixing one thicker segment of the rib, the other end is used for fixing one thinner segment of the rib, and two or four pairs of surrounding arms can effectively fix. For short-distance rib bone fracture, two or four pairs of the special-shaped rib surrounding bone fracture plates are adopted; for longer-distance rib bone fracture, six pairs of the special-shaped rib surrounding bone fracture plates are adopted. By adopting the (conical) special-shaped rib surrounding bone fracture plate, the rib fracture can be well fixed. Since dynamic surrounding and pressurized fixing are adopted, so that bone growth is facilitated, and the rehabilitation period is shortened. A good fixing effect is achieved, and the problem of difficulty in operation is solved.

The invention discloses a multidirectional locking intramedullary interlocking nail, and belongs to medical apparatuses and instruments. The far end of a main nail is provided with a front-back direction lock pin straight-passing lock nail hole A, an internal-external direction lock pin internal and external transverse pass lock nail hole B, and two internal-external direction internal and external transverse pass or 45-degree internal and external inclined pass lock nail holes C, the near end of the main nail is provided with a front-back direction lock nail front-back straight pass lock nail hole A, two 90-degree intersection, two 90-degree intersection lock nail front-internal, front-external to back-external and back-internal transverse pass lock nail holes D, two internal-external direction internal-external transverse pass or 45-degree internal-external inclined pass lock nail holes C and an internal-external direction internal-external transverse pass lock nail hole B. The multidirectional locking intramedullary interlocking nail has the advantages that the stability of the angle between the main nail and the lock nail is stronger; the near end and the far end have multidirectional locking; the high-thread cancellous bone lock pin has the surrounding, extrusion and fixing effect on a fracture of distal radius.

The invention discloses a clavicle fracture percutaneous reduction distraction pressurization fixing device which comprises a reduction fixing plate arranged on the body surface and matched with the physiological curvature of a clavicle, an arc-shaped sliding groove is formed in the reduction fixing plate, a plurality of screw assemblies are connected in the arc-shaped sliding groove, and each screw assembly comprises a screw body and a locking nut. The screw body comprises an upper screw rod part, a lower screw rod part and a step part located between the upper screw rod part and the lower screw rod part, and the locking nut is connected to the upper screw rod part in a matched and screwed mode and matched with the step part to lock the screw body to the reset fixing plate. An expanding, pressurizing and fine-adjusting mechanism which is positioned outside the body and is adjustable in length is connected between the two adjacent screw assemblies close to the fracture end. When the device is used, only several small incisions need to be formed in the two ends of the fracture of the clavicle, and several screw assemblies locked into the clavicle are placed in the small incisions. According to the instrument, minimally invasive surgery is well achieved, periosteum stripping can be reduced through percutaneous body surface external fixation, blood supply is protected, and fracture nonunion is reduced.

The invention relates to a 3D printed suspension type navigation module. Specifically, the 3D printed suspension type navigation module is prepared in the way of 1, conducting preoperative consecutive thin-slice CT scan on a distal femoral fracture patient, inputting a Dicom file obtained after CT scan to Mimics software, conducting three-dimensional reconstruction of a knee joint model and virtual fracture reduction, selecting appropriate bone fracture plates and screws for virtual internal fixation, and determining an ideal internal fixation scheme; 2, designing and 3D printing the navigation module, wherein Mimics software is adopted to design various function keys; and 3, implementing specific surgery. The suspension type personalized navigation module is of a reversed structure of the knee joint bone landmark peripheral bone surface contour feature, can be well clamped, and better accords with the biological internal fixation principle, so that the problem that when an existing navigation module is clamped, a large area of soft tissue needs to be peeled off to cause damage to periostea can be effectively solved, and fracture end blood supply is effectively guaranteed.

The invention discloses a tibia far-end front outer side bone fracture plate which comprises a bone fracture plate body, the bone fracture plate body comprises a bone fracture plate near end and a bone fracture plate far end, the whole bone fracture plate body is in an L shape, the bone fracture plate far end is divided into a bent section and an inclined plane connecting section, the bent section is provided with a far end locking hole and a far end kirschner wire hole. A plurality of far-end lower locking holes and far-end lower kirschner wire holes are formed in the inclined plane connecting section, a sliding hole is formed in the left end of the bone fracture plate near end, a near-end kirschner wire hole is formed in the right end of the bone fracture plate near end, a plurality of near-end middle locking holes, a sliding hole I and a near-end locking hole are sequentially formed between the near-end kirschner wire hole and the sliding hole. The near-end middle locking holes are arranged. A near-end middle Kirschner wire hole is formed between every two adjacent near-end middle locking holes. The curvature radius of the far end of the bone fracture plate is determined according to ankle joint data of Chinese people, the situation that the inner side of the far end of an existing bone fracture plate tilts due to the fact that the curvature radius is too large is avoided, and complications such as conscious discomfort or soft tissue irritation of postoperative patients are reduced.

The invention provides a bridging dissection locking bone plate for fixing comminuted fracture of a humerus shaft on the rear outer side. The inner surface of a bone plate body is attached to the rearside surface of the humerus shaft and the external epicondyle of the humerus, and a dissection structure is matched with the bone fracture plate body; the bone plate body sequentially comprises a tapered periosteum stripping area, a first fixing area, a radial nerve decompression area and a second fixing area from the near end to the far end, the longitudinal section of the tapered periosteum stripping area is a right triangle, and one right-angle side of the right triangle is attached to the surface of the humerus shaft; the first fixing area is provided with a plurality of locking screw holes and locking and pressurizing combination screw holes which are perpendicular to the surface of the humerus shaft which is attached to the first fixing area; and a groove is formed in the outer surface of the radial nerve decompression area, and the edge of the groove is an arc-shaped transition area; the shape of the second fixing area is matched with that of a distal humeral epicondyle anatomical structure, and a plurality of locking screw holes are formed in the second fixing area in the length direction. In the process of fixing the comminuted fracture of the humerus shaft, blood supplyof the broken end of the fracture is not damaged, nerves are not damaged, and operation time is short.

The invention provides a nail-stick system used for treating femoral fracture postoperation refractures of children. The nail-stick system comprises a round stick, a connecting block and a screw; the connecting block comprises a block body; the block body comprises two connected hinge sheets; one hinge sheet is provided with a stick hole; the other hinge sheet is provided with a nail hole; when the two hinge sheets are combined together, a cavity is formed in the connecting position of the two hinge sheets; the round stick passes through the cavity to be connected with the connecting block; the screw sequentially passes through the stick hole and the nail hole to be fixed to the bone. According to the nail-stick system, multi-plane fracture fixation and fracture end blood supply protection can be achieved. According to the nail-stick system, minimally invasive operation is achieved; local injuries are small; fractures of the children do not insist on anatomical reduction; fracture healing is facilitated; the fracture stabilization is facilitated through multi-shaft locking; compared with an intramedullary nail, the nail-stick system has the advantages that the epiphysis is not injured, and the skeletal development is not influenced; the nail-stick system is particularly suitable for an repairing operation after fixing of an external fixator and a steel plate loses efficacy.

The invention discloses mold manufacturing assisting equipment. The mold manufacturing assisting equipment comprises a left glove, a right glove and a connecting line. The left glove and the right glove are connected by the connecting line. Heating pieces are arranged on palm portions in the left glove and the right glove. A USB connector is mounted at the bottom of the right glove. The heating pieces are connected by wires. A mobile power source is connected by the USB connector to heat the heating pieces in the gloves, and therefore the temperature of the gloves is increased, convenience isprovided, and hand blood supply is effectively protected.

The invention provides a 3D printing guide board capable of controlling the osteotomy depth for a fibular flap shaping operation. The guiding board comprises a guiding board body, a plurality of location parts are arranged on the guiding board body, and each location part is composed of one or more location plates; the outer end surface of each location part is provided with a fibula osteotomy depth controlling groove and a fibula osteotomy direction controlling through groove, and the fibula osteotomy direction controlling through grooves are formed in the trend of the fibula osteotomy depthcontrolling grooves. The fibula osteotomy depth controlling grooves and the fibula osteotomy direction controlling through grooves which are formed in the guiding board can effectively control the osteotomy trend and depth, and therefore the vessel pedicle on the inner side of the fibula is not injured on the premise that it is ensured that the fibula is cut by a saw blade. Therefore, in the usingprocess of the guiding board, it is unnecessary to strip the vessel pedicle on the inner side of the fibula, blood supply to the fibula is effectively protected, the operation time is significantly shortened, and the efficiency of the fibular flap shaping operation performed by medical workers is improved.

The invention provides a fixation device beneficial to the fixation and healing of patella fracture, and belongs to the technical field of medical instruments in the orthopedics department. The device is used for patella fixation after fracture. According to the technical scheme, the device is characterized in that the rear portion of a needle body of a fixation needle is provided with a limiting bulge, the portion, below the limiting bulge, of the needle body is provided with a groove, the groove is opposite to the limiting bulge, the groove is in a semi-arc shape, the diameter of the circular arc of the groove is matched with the diameter of a steel wire, and the portion, on the rear portion of the groove, of the needle body is provided with a breaking groove; a wire feeding plate is a long strip-type plate, the portion, in the length direction of the plate surface, of the wire feeding plate is in a curved arc shape, the curvature of the arc shape is matched with that of the upper surface of a patella, a push rod is connected with the rear end of the wire feeding plate, the rear end of the push rod is connected with a hand shank, a steel wire hole is formed in the rod body of the push rod, the lower bottom surface of the wire feeding plate is provided with a wire feeding groove in the length direction of the wire feeding plate, and the steel wire hole of the push rod is opposite to the wire feeding groove. The device is firstly provided for minimally invasive fixation of patella fracture and has the advantages of being simple in structure, convenient to operate and good in fixation effect, avoiding damage and being beneficial to fracture healing.

The invention relates to the technical field of medicines, in particular to an injection for nourishing myocardium. The injection for nourishing the myocardium is a high-efficiency formula comprising adenosine, atrial natriuretic factor, Shuxuening, coenzyme A and vitamin B12 in a certain amount and proportion. Through injecting the injection into a human body, under the cooperation of the adenosine and the atrial natriuretic factor, impaired myocardium can be repaired, energy is provided for the myocardium; the blood supply of the myocardium is protected; myocardial cells are nourished; the blood supply of the myocardium is increased; and the far-end ischemic myocardium is protected. The injection for nourishing the myocardium can be used for preventing and improving ischemic heart diseases, avoiding and preventing the myocardial damage of the ischemic heart diseases and effectively taking a good health-care treatment effect on the ischemic heart diseases.

The invention relates to a shoulder joint dynamic and static combined regulation external fixator, comprising a bone external fixation support, a steel needle fixation clamp connected to the bone external fixation support, and a steel needle clamped in the steel needle fixation clamp, wherein the bone external fixation support comprises a near end hole C-shaped ring and a far end hole C-shaped ring, and the opening directions of the near end hole C-shaped ring and the far end hole C-shaped ring are the same, the near end hole C-shaped ring and the far end hole C-shaped ring are uniformly provided with a plurality of holes, the middle parts of the near end hole C-shaped ring and the far end hole C-shaped ring are connected by an arc-shaped connecting rod, the two ends of the near end hole C-shaped ring and the far end hole C-shaped ring are connected by dynamic traction joint devices, each dynamic traction joint device comprises a first joint connecting piece connected with the hole at the end part of the near end hole C-shaped ring and a second joint connecting piece connected with the corresponding hole in the far end hole C-shaped ring, and the first joint connecting piece and the second joint connecting piece are connected by a central spindle and can swing relative to the central spindle. The fixator is flexible in operation, the curative effect is improved, and the complications of proximal humeral fracture of shoulder joints are reduced.

The invention relates to a shoulder joint dynamic and static combined regulation external fixator, comprising a bone external fixation support, a steel needle fixation clamp connected to the bone external fixation support, and a steel needle clamped in the steel needle fixation clamp, wherein the bone external fixation support comprises a near end hole C-shaped ring and a far end hole C-shaped ring, and the opening directions of the near end hole C-shaped ring and the far end hole C-shaped ring are the same, the near end hole C-shaped ring and the far end hole C-shaped ring are uniformly provided with a plurality of holes, the middle parts of the near end hole C-shaped ring and the far end hole C-shaped ring are connected by an arc-shaped connecting rod, the two ends of the near end hole C-shaped ring and the far end hole C-shaped ring are connected by dynamic traction joint devices, each dynamic traction joint device comprises a first joint connecting piece connected with the hole at the end part of the near end hole C-shaped ring and a second joint connecting piece connected with the corresponding hole in the far end hole C-shaped ring, and the first joint connecting piece and the second joint connecting piece are connected by a central spindle and can swing relative to the central spindle. The fixator is flexible in operation, the curative effect is improved, and the complications of proximal humeral fracture of shoulder joints are reduced.

The invention discloses a tibia far-end inner-side bone fracture plate which comprises a bone fracture plate body, the bone fracture plate body is divided into a bone fracture plate near end and a bone fracture plate far end, the two sides of the bone fracture plate far end are bent inwards, and the bone fracture plate near end is sequentially provided with a near-end kirschner wire hole, a near-end locking hole, a near-end sliding hole, a near-end lower locking hole and a near-end sliding hole I from right to left; A plurality of near-end lower locking holes is arranged. Near-end lower kirschner wire holes are formed between the adjacent near-end lower locking holes, a far-end locking hole, a far-end kirschner wire hole, a far-end upper locking hole, a far-end upper kirschner wire hole and a far-end lower locking hole are sequentially formed in the bone fracture plate far end from right to left, and the far-end lower locking hole is distributed in an annular structure. A far-end middle locking hole is formed in the middle of the annular structure, and far-end lower kirschner wire holes are formed in the periphery of the far-end lower locking hole. The near end and the right end of the bone fracture plate are designed to be inclined surfaces, so that the bone fracture plate can be conveniently inserted, an operator can operate conveniently, and soft tissue injury is reduced.

The invention discloses a posterior ankle bone fracture plate which comprises a bone fracture plate body; the bone fracture plate body is divided into a near-end bone fracture plate and a far-end bone fracture plate, the far-end bone fracture plate is of an arc-shaped structure and extends towards curves on the two sides, and the near-end bone fracture plate and the far-end bone fracture plate are in smooth transition connection; near-end kirschner wire holes, near-end locking holes, sliding holes, near-end locking holes I and sliding holes I are sequentially formed in the middle of the near-end bone fracture plate from top to bottom, the near-end kirschner wire holes I are formed between the adjacent near-end locking holes I; a far-end upper locking hole is formed in the middle of the upper end of the far-end bone fracture plate, and far-end locking holes are formed in the periphery of the far-end bone fracture plate; and a far-end kirschner wire hole is formed between every two adjacent far-end locking holes, and the locking hole angle of the far-end locking holes and the locking hole angle of the far-end upper locking hole are in the tangential direction of the highest point of the tibia far-end articular surface in the ankle joint. The far end of the bone fracture plate extends towards the curved surfaces on the two sides, six locking holes are relatively and uniformly distributed, and the bone fracture plate can be suitable for simple and complex posterior ankle fractures.

The invention discloses a traditional Chinese medicine composition for preventing and treating hypopsia, a preparation and a preparation method, belongs to the technical field of traditional Chinese medicine compositions and preparations, and particularly relates to the traditional Chinese medicine composition for preventing and treating hypopsia. The traditional Chinese medicine composition aims at solving the problem that no specific medicine exists for hypopsia at present. The traditional Chinese medicine composition is prepared from, by weight, 5-150 parts of fingered citron, 3-120 parts of pachyrhizua angulatus, 3-120 parts of radix polygonati officinalis, 3-100 parts of roses and 3-100 parts of rhizoma polygonati. The composition can soothe the liver, regulate Qi, nourish Yin, dredge collaterals, activate blood and improve eyesight, and the purposes of preventing and treating hypopsia are achieved by reducing blood viscosity, promoting blood circulation, softening blood vessels, resisting oxidation, reducing blood glucose, blood fat and blood pressure and the like, improving eye blood circulation, increasing eye nutrition, protecting retinal epithelial cells and the like.

The invention discloses a fixing device for a patella fracture. The fixing device comprises a strap-shaped knitting part and hollow screws. A traction needle is connected to at least one end of the strap-shaped knitting part. The hollow screws are arranged in reserved drill holes in the patella fracture. The strap-shaped knitting part penetrates into center holes of the hollow screws under driving of the traction needles and presses the patella fracture in an intersecting mode. The fixing device has excellent biocompatibility, stimulation on the implanting position from the implantation material is avoided, and the problem that the implantation material needs to be taken out through a secondary operation is solved; the strap-shaped knitting part has low elasticity modulus, the screws have a dynamic pressurizing characteristic, blood supply to the fixed part is effectively protected while efficient fixing is provided, postoperative pain of a patient is relieved, and the rehabilitation period of the patient is shortened; the strap-shaped knitting part provides an effective fixing mode for the slight comminuted patella fracture.

The invention discloses a multidirectional locking intramedullary interlocking nail, and belongs to medical apparatuses and instruments. The far end of a main nail is provided with a front-back direction lock pin straight-passing lock nail hole A, an internal-external direction lock pin internal and external transverse pass lock nail hole B, and two internal-external direction internal and external transverse pass or 45-degree internal and external inclined pass lock nail holes C, the near end of the main nail is provided with a front-back direction lock nail front-back straight pass lock nail hole A, two 90-degree intersection, two 90-degree intersection lock nail front-internal, front-external to back-external and back-internal transverse pass lock nail holes D, two internal-external direction internal-external transverse pass or 45-degree internal-external inclined pass lock nail holes C and an internal-external direction internal-external transverse pass lock nail hole B. The multidirectional locking intramedullary interlocking nail has the advantages that the stability of the angle between the main nail and the lock nail is stronger; the near end and the far end have multidirectional locking; the high-thread cancellous bone lock pin has the surrounding, extrusion and fixing effect on a fracture of distal radius.