22 results about "Patella fracture" patented technology

A patella fracture fixation system includes a bone plate that is configured to be implanted along an anterior approach. The bone plate has a fixation hub and a plurality of fixation nodes that are connected to the fixation hub. The fixation hub and the fixation nodes can define respective fixation holes. The bone plate can further include legs that are configured to be bent around respective inferior aspects of the patella.

A patella fracture fixation system includes a peripheral rim bone plate that is configured to be implanted along a parapatellar lateral approach. The bone plate can configured to minimize disruption of blood supply to the patella. The bone plate can be augmented with a Krackow suture pattern to assist in stabilization of a comminuted inferior pole.

The utility model provides a fixing suite for a minimally invasive surgery of transverse patella fracture, which belongs to the field of medicine and comprises a steel wire with a needle. One end of the steel wire through hole guider is handheld and can be locked, and the other end of the steel wire through hole guider is provided with a steel wire access hole channel for guiding; the tip and the edge of one end of the anterior patellar dissection guider are sharp, a steel wire channel is arranged in the middle and used for being inserted into anterior patellar soft tissue and bringing out a steel wire, and the other end is handheld. The patella transverse fracture minimally invasive internal fixation device solves the problem that no suitable surgical instrument exists in the patella transverse fracture minimally invasive internal fixation technology, assists in completing patella steel wire conduction, achieves surgical treatment on the premise of minimally invasive surgery, avoids the problems of soft tissue contusion, incision infection, steel wire torsion fracture, too long radiation exposure and the like in the surgical process, and improves the working efficiency. And fracture reduction and fixation are completed on the premise of receiving the lowest limit value of radiation.

The invention belongs to the technical field of minimally invasive surgery of patella fracture percutaneous closed reduction kirschner wire fixation, and provides a pair of double-claw patella reduction forceps with a guide hole, which comprises a first forceps handle and a second forceps handle, the first forceps handle is rotatably connected with the second forceps handle through a pivot, the first forceps handle is connected with a first upper pole claw and a second upper pole claw, and the second forceps handle is connected with a second upper pole claw. The second clamp handle is connected with a first lower pole claw and a second lower pole claw, and the first lower pole claw and the second lower pole claw are provided with threaded guide holes. The threaded guide holes are formed in the first lower pole claw and the second lower pole claw, a kirschner wire is drilled into a fracture block along the sleeves matched with the threaded guide holes in the operation process, the threaded guide holes have the auxiliary positioning effect on the penetrating position of the kirschner wire, the kirschner wire can be drilled into the accurate position of the fracture block more easily, other instruments are not needed, and the operation efficiency is improved. And the operation difficulty is reduced.

Device for the osteosynthetic treatment of bone fractures, in particular patella fractures, with a plate (1) which has a plurality of star-shaped cavities (4), each extending in the radial direction of the plate (1) from an open end (5) on the radially outer edge of the plate (1) to an opposite end which is closer to the center (6) of the plate (1) than the open end, and a plurality of arms (18, 19, 20, 21), each having two legs (22, 24, 25, 26, 27) arranged at an angle to one another, wherein the arms (18, 19, 20, 21) are radially continuously movable relative to the plate (1) after the one leg (22) has been received in the cavities (4) and can be releasably held in place in their respective position on the plate (1) by means of fastening means, characterized in that the arms (18, 19, 20, 21) are each individually detachably connectable to the plate (1) and independently movable relative to the plate (1), the arms (18, 19, 20,21) and the plate (1) each have at least one through-opening (13, 14, 16), and the fastening means have a plurality of screws (15, 17, 31) by means of which each arm (18, 19, 20, 21) can be detachably connected to the plate (1) and to at least one bone fragment, or the plate (1) can be detachably connected to at least one bone fragment.

The present invention discloses an internal fixation device for patellar fractures, which includes a knee-holding ring, patellar nails, adjustment straps and an adjustment mechanism. The edge of the knee-holding ring is connected to the adjustment straps and / or fixing straps, and the ends of the adjustment straps and / or fixing straps are sleeved on the two end parts of the corresponding patellar nails. Among them, the length of the two ends or the middle part of the adjustment straps can be adjusted to tighten each fixing strap and each adjustment strap. The straps in the present invention can be adjusted both radially and rotate moderately along the knee-holding ring, so as to adapt to the selection of nail insertion at different positions. When inserting the nails, there is no need to consider the constraints of the strap length and the hole positions at the strap ends, and the best position for nail insertion can be found without the aid of positioning instruments. After the nails are inserted, only the tension adjustment of the straps needs to be operated. The operation process during the surgery is simple and efficient.

A patella reinforcing member is disclosed. The patella reinforcing member is configured as a compliant mechanism that may be pre-tensioned / stretched to fit around a fractured patella. The member may then be anchored to the patella—for example, via fasteners and / or hooks—and the pre-tensioning forces may be released as the member returns to its initial, non-tensioned position. The member may thereby deliver targeted anterior compression between fractured bone fragments.

The utility model provides an internal fixation nail applied to patella fracture closed reduction internal fixation, relates to the technical field of patella fracture surgical instruments, and solves the technical problem that a tension band is difficult to construct after nail placement. The internal fixation nail applied to patella fracture closed reduction internal fixation penetrates through patella from the coronal plane position to form patella internal fixation of fracture, and the internal fixation nail is of a segmented structure and comprises a head section, a middle section and a tail section which are detachably connected; and the head section and the tail section are respectively provided with a cavity for accommodating a high-strength cable, and the middle section is of a whole-section hollow structure, so that the high-strength cable can penetrate through the middle section conveniently. By adopting the segmented structure, the length of the middle section matched with the specification of the patella can be selected during use, and then the head section and the tail section are detached after the inner fixing nail penetrates through the patella, so that the cost of the inner fixing nail is saved, a tension band can be conveniently led out from a needle inlet position and a needle outlet position, and the operation process is greatly simplified.

The utility model provides a thread feeder applied to patella fracture closed reduction internal fixation. The thread feeder comprises a handle, an extension rod and a threading part, the handle is connected with one end of the extension rod; the threading part is arranged at the other end of the extension rod; the threading part comprises a flat head end and a wire feeding hole; the flat end is arranged at the tail end of the extension rod; the two wire feeding holes are formed in the flat head end at intervals; or the threading part comprises a pointed end and a threading hole; the cross section of the tip is triangular, and the threading hole penetrates in the width direction of the tip to form a triangular threading hole. The device is used for manufacturing a subcutaneous tunnel on the back face of the patella, the high-strength cable exposed out of one end of the inner fixing nail is guided to the high-strength cable exposed out of the other end of the inner fixing nail or one end of the other inner fixing nail through the tunnel, and final cable knotting tension band fixing can be conveniently completed.

The invention discloses a patella hook lock fixing system which is mainly applied to the technical field of medical instruments and comprises a screw, an upper hook body and a lower hook body, the upper hook body is J-shaped, two bent hooks A are arranged at the tail end of the upper hook body and distributed on the two sides of the linear section of the upper hook body, the two sides of the tail end of the linear section of the upper hook body extend outwards to form fixing wings, threaded holes are formed in the middles of the fixing wings, and the screw is screwed into the threaded holes; the lower hook body is J-shaped, the tail end of the lower hook body is provided with three hooks B, two of the hooks B are distributed on two sides of the linear section of the lower hook body, the tail end of the linear section of the lower hook body is provided with a threaded hole, a screw is screwed into the threaded hole, and the top of the linear section of the lower hook body is provided with a waist-shaped hole; an anti-loosening device is arranged at the joint of the bottom surface of the lower hook body and the top surface of the upper hook body. The patella hook lock fixing system is convenient to use and low in operation difficulty, the operation difficulty is remarkably reduced, the pain of a patient is relieved, the operation quality is improved, the patella fracture end is stable and good after healing, the patient can enter rehabilitation exercise as soon as possible, and the movement function of the affected limb is repaired.

The invention relates to the technical field of temperature measurement, in particular to medical temperature sensing equipment used after patella fracture operation. The medical temperature sensing equipment used after patella fracture operation comprises a supporting assembly, a temperature control assembly and a temperature sensing mechanism, the temperature sensing mechanism comprises a temperature conduction assembly, a junction box assembly, a wire assembly and a fixed buffering assembly, and the fixed buffering assembly comprises a fixing piece and an annular automatic recovery air bag. When the air bag capable of being automatically recovered is pressed, internal air flow can be released and used for washing the fixing piece, preventing dust from being attached to the fixing piece, reducing friction between equipment and improving the connectivity between the temperature sensing mechanism and the temperature control assembly, so that temperature measurement data can be stably transmitted, and the service life of the equipment is prolonged. And meanwhile, the automatic recovery air bag can serve as an insert when a shaking phenomenon occurs between the temperature sensing mechanism and the temperature control assembly, so that the temperature sensing mechanism and the temperature control assembly are tightly connected, and the situation that different temperatures occur at different positions due to shaking of the temperature measuring element is prevented.

The utility model relates to the technical field of medical instruments, in particular to a guiding device for assisting patella fracture kirschner wire implantation, which comprises an outer sleeve and an inner sleeve which are in sliding sleeve connection, and is characterized in that a sliding groove is formed in the outer sleeve, and one end of the inner sleeve is arranged in the sliding groove; a threaded hole is formed in the top of the outer sleeve and communicates with the sliding groove, and a screw is arranged in the threaded hole. Clamping pieces are arranged at the ends, away from the sliding grooves, of the outer sleeve and the inner sleeve correspondingly, and guide holes are formed in the clamping pieces; a guide pipe is arranged on the outer sleeve, the guide pipe is connected with the clamping pieces on the outer sleeve, and the guide pipe is communicated with the guide holes in the two clamping pieces. The kirschner wire is drilled at a time by positioning two points of the upper electrode and the lower electrode of the kirschner wire, so that the accuracy and the effect of an operation are greatly improved, the operation time and the projection time in the operation are shortened, and iatrogenic fracture caused by multiple operations is avoided.

The utility model relates to a hollow nail cable fixing device for patella fracture. The hollow nail cable fixing device comprises a hollow bone nail, a cable and an operation hook, the hollow bone nail is provided with a center channel, a nail cap and a nail body, wherein the nail cap and the nail body are integrally formed, and the center channel penetrates through the nail cap and the nail body. The cable is provided with a first connecting end and a second connecting end, and the first connecting end is connected with the nail cap; the operation hook is fixedly connected with the second connecting end and is configured to enable a cable to penetrate through the human tissue along the outer contour of the skeleton; wherein a first external thread is arranged on the peripheral surface of the nail cap, and a second external thread is arranged on the peripheral surface of the nail body. The patella implant can be implanted into the patella more smoothly.

This invention relates to a combined patellar fracture fixation device, comprising a Kirschner wire with threads at both ends, a tail cap, and a two-hole steel plate. The threaded Kirschner wire has a sharp end and a flat end, with an unthreaded middle section. The tail cap has a central channel connecting both ends of the Kirschner wire, with the thinner end embedded in the patellar bone. The two-hole steel plate has different widths at both ends; the wider end has a hole that connects to the tail cap, while the narrower end has a hole through which a tension band cable can pass. The Kirschner wire, tail cap, and steel plate are combined to form a patellar fracture fixation device, used in pairs. Connecting the cable creates a tension band for fixation. This invention offers better stability than traditional Kirschner wire tension band technology, effectively reducing the likelihood of loosening and displacement of the traditional Kirschner wire, the risk of cable slippage leading to tension band failure, and reducing the risk of irritation to surrounding tissues and skin puncture by the tail of the traditional Kirschner wire. This facilitates early postoperative functional exercises for patients, promotes patellar fracture healing, and provides a new and more effective fixation device for patellar fractures.

The utility model relates to the technical field of medical instruments, and discloses a 3D printing patella fracture guide plate which comprises a fixing guide plate and a limiting assembly, a clamping plate is arranged on the outer side of the fixing guide plate, a threaded hole is formed in the outer side of the clamping plate, and a connecting assembly is arranged on one side of the clamping plate through the formed threaded hole. The fixing guide plate can be placed on the surface of the patella of a patient through the clamping plate, the fixing guide plate and the clamping plate can tightly support and position the patella of the patient through 3D printing, a kirschner wire can be conveniently and accurately driven into the patella of the patient through a fixing hole in a fixing cylinder, and a steel wire is inserted into a limiting hole in a limiting column; a hollow threaded column of a connecting assembly can be fixedly connected with an adjusting assembly, and then a threaded connecting column is connected with a threaded hole of a fixing guide plate, so that one side of the fixing guide plate is connected with a limiting assembly at one end of the adjusting assembly, and the limiting assembly limits the opened skin and flesh part; and the circular patient operation is prevented.

The utility model relates to a patella fracture fixing device, belongs to the technical field of medical instruments, and solves the problem of large patella loss in the prior art. The patella fracture fixing device comprises a hollow screw, one end of the hollow screw is provided with external threads, the other end of the hollow screw is provided with a through hole, and the included angle between the through hole and the axial direction of the hollow screw is an acute angle; one end of the fastening screw is arranged in the through hole in a penetrating manner; and one end of the traction cable is fixedly connected with one end, far away from the through hole, of the fastening screw. According to the patella fixator, a screw does not need to be placed for the second time during patella operation, bone loss cannot be caused, and damage to the patella is reduced.

A patella fracture fixation system includes a peripheral rim bone plate that is configured to be implanted along a parapatellar lateral approach. The bone plate can configured to minimize disruption of blood supply to the patella. The bone plate can be augmented with a Krackow suture pattern to assist in stabilization of a comminuted inferior pole.

The utility model discloses an auxiliary device for patella fracture titanium cable internal fixation, which comprises a first handle and a second handle, the first handle and the second handle are arranged in an X-shaped crossing manner, and the crossing part is rotatably and fixedly connected through a main body connecting shaft; an elastic locking device is arranged between the tail end of the first handle and the tail end of the second handle, and the elastic locking device can be locked after the first handle and the second handle move to determined positions; a fixed sleeve is arranged at the head end of the first handle, a fixed annular support is arranged at the head end of the second handle, and the fixed sleeve and the fixed annular support are coaxially arranged; a movable inner sleeve is arranged in the fixed sleeve, the movable inner sleeve is a hollow cylindrical sleeve in the central axis direction, and a sleeve handle is arranged at the end, opposite to the fixed annular support, of the movable inner sleeve. The device is small in size and small in operation space, meets the minimally invasive requirement, and can smoothly implant the patella titanium cable through a small incision.

The utility model provides a coronal plane guider applied to patella fracture closed reduction internal fixation, relates to the technical field of patella fracture surgical instruments, and solves the problems that no matched surgical instrument can position the coronal plane of patella, so that patella fracture closed reduction internal fixation operation steps are relatively tedious, and the patella fracture closed reduction internal fixation operation is difficult to carry out. And the operation and anesthesia time is long. The coronal plane guider applied to patella fracture closed reduction internal fixation is of a C-shaped structure and comprises a straight arm, transverse arms and a guide sleeve, and the transverse arms are vertically arranged at the two ends of the straight arm; the guide sleeves are oppositely arranged on the inner sides of the two cross arms, and communicating holes are formed in the positions, corresponding to inner cavities of the guide sleeves, of the cross arms. The straight arm is of a length-adjustable structure. The coronal plane guiding device can be clamped into a patella percutaneous reduction clamping device, so that coronal plane positioning is carried out on an inner fixing nail which is about to penetrate through the patella which is temporarily fixed, and the inner fixing nail can enter and exit through the position and direction indicated by the coronal plane guiding device.

The utility model provides a patella percutaneous reduction clamp holder, relates to the technical field of patella fracture surgical instruments, and solves the technical problem that the minimally invasive surgery of patella fracture closed reduction internal fixation is difficult to complete due to the absence of matched surgical instruments. The patella percutaneous reduction clamp holder is of a scissor type structure and comprises a first clamp arm and a second clamp arm which are hinged to each other, the head end of the first clamp arm is provided with a first clamping part, and the head end of the second clamp arm is provided with a second clamping part; when the first clamping part and the second clamping part are close to each other and closed, a clamping ring matched with the patella in shape can be formed, and the clamping ring is used for resetting and temporarily fixing the displaced fracture broken end. According to the patella comminuted fracture internal fixation device, fracture blocks can be clamped, adjustment and reduction are carried out under monitoring of a perspective machine, the effect of anatomical reduction of patella articular surfaces is achieved, and closed reduction internal fixation of complex patella comminuted fractures is more conveniently achieved on the premise that the reduction and fixation quality is not sacrificed.

This invention provides a closed reduction and internal fixation surgical kit for patellar fractures and its method of use, relating to the field of orthopedic instrument technology. It solves the technical problem of lacking matching surgical instruments to perform minimally invasive closed reduction and internal fixation surgery for patellar fractures. The kit includes a percutaneous patellar reduction clamp, a coronal plane guide, internal fixation screws, and a suture feeder. This invention makes closed reduction and internal fixation surgery for patellar fractures simpler and more efficient, and allows for more convenient closed reduction and internal fixation of complex comminuted patellar fractures without sacrificing the quality of reduction and fixation.

A patella fracture fixation system includes a bone plate that is configured to be implanted along an anterior approach. The bone plate has a fixation hub and a plurality of fixation nodes that are connected to the fixation hub. The fixation hub and the fixation nodes can define respective fixation holes. The bone plate can further include legs that are configured to be bent around respective inferior aspects of the patella.