A posterior cruciate ligament replacement surgery quick handling system tool

Abstract

The utility model relates to medical instrument technical field especially relates to a knee joint posterior cruciate ligament replacement type operation quick processing system tool, including intercondylar osteotomy module, guide module, hollow drill, bone gouge and hold component, intercondylar osteotomy module is integrally formed structure and has the anatomic feature of left and right same type number condyle test mould appearance superposition, intercondylar osteotomy module is equipped with guide slot, and the guide slot is surrounded by upper baffle and two side plates and forms guide limiting space, and guide module, hold component according to need can be detachably installed at guide limiting space, and hollow drill, bone gouge according to need can be detachably installed at guide limiting space or install on guide module. The utility model provides the instrument has realized the universal application of front condyle positioning plate in left and right side operation, and can satisfy the demand of quick switching between different osteotomy modes of saw osteotomy and bone drill osteotomy.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a knee joint posterior cruciate ligament replacement type operation fast processing system tool. BACKGROUND

[0002] Total knee arthroplasty is a treatment method used in the case of knee joint damage, and artificial femoral condyle prosthesis is divided into posterior cruciate ligament replacement type (PS) and posterior cruciate ligament retention type (CR) two forms of prosthesis design according to design theory, wherein the artificial femoral condyle prosthesis of the posterior cruciate ligament replacement type needs to remove the bone at the intercondylar position of the femoral condyle during the installation process in the operating room, to establish a rectangular space, so as to facilitate the implantation of the artificial femoral condyle prosthesis and avoid interference. After completing the distal femur osteotomy, the anterior condyle osteotomy, the posterior condyle osteotomy, the anterior slope and the posterior slope osteotomy, intercondylar osteotomy is needed. Therefore, a suitable surgical instrument is needed to accurately, quickly and labor-savingly remove the bone at the site, save the operation time, and reduce the possibility of bleeding and complications.

[0003] In the operation, compared with the swing saw osteotomy, the bone drill osteotomy is usually preferred due to its convenient operation. However, when the patient's bone condition is hard (such as high bone density), the bone drill is difficult to guide and drill, or the bone chisel is difficult to effectively chisel, the swing saw osteotomy mode needs to be switched in time to complete the osteotomy operation.

[0004] In the related art, the existing intercondylar osteotomy system tool has the significant limitation of insufficient function integration, and it is difficult to realize flexible switching between the two mainstream osteotomy modes of swing saw osteotomy and bone drill osteotomy. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a knee joint posterior cruciate ligament replacement type operation fast processing system tool, which has high function integration and helps to realize flexible switching between the two mainstream osteotomy modes of swing saw osteotomy and bone drill osteotomy.

[0006] The utility model is implemented by the following scheme:

[0007] A knee joint posterior cruciate ligament replacement type operation fast processing system tool, which comprises an intercondylar osteotomy module, a guide module, a hollow drill, a bone chisel and a holding component, the intercondylar osteotomy module is of an integrated structure and has the anatomical characteristics of the superposition of left and right same type number condyle test molds, the intercondylar osteotomy module is provided with a guide groove, the guide groove is surrounded by an upper baffle and two side plates to form a guide limiting space, the guide module and the holding component can be detachably installed in the guide limiting space according to needs, and the hollow drill and the bone chisel can be detachably installed in the guide limiting space or on the guide module according to needs.

[0008] Further, the intercondylar osteotomy module comprises a bottom plate, a front condyle positioning plate, a rear condyle positioning plate, a front bevel positioning plate and a rear bevel positioning plate, the front bevel positioning plate and the rear bevel positioning plate are respectively fixedly arranged on the front and rear sides of the bottom plate, the rear condyle positioning plate is fixedly arranged on the rear side of the rear bevel positioning plate, the front condyle positioning plate is fixedly arranged on the front side of the front bevel positioning plate, the shape of the front condyle positioning plate is the shape after the middle part of the left condyle contour and the right condyle contour is superimposed, a plurality of front condyle positioning plate fixing holes are arranged on the upper part of the superimposed part of the middle part of the left condyle contour and the right condyle contour, windows are arranged on both sides of the plurality of front condyle positioning plate fixing holes, and the inner edges of the two windows correspond to the inner edges of the left condyle or the right condyle respectively, and the guide groove is arranged on the lower part of the front condyle positioning plate and penetrates through the intercondylar osteotomy module.

[0009] Optimally, the front condyle positioning plate fixing hole is three, one of which is on the center line of the front condyle positioning plate, and the other two are close to the inner edges of the two windows.

[0010] Further, the shape and size of the outer edge of the upper end of the front condyle positioning plate are consistent with the shape and size of the outer edge of the femoral condyle prosthesis to be installed.

[0011] Optimally, the bottom plate is provided with a bottom plate fixing hole and a bottom plate positioning hole on both sides of the guide groove, and the bottom plate fixing hole is an inclined hole.

[0012] Further, a stepped front bevel positioning plate fixing hole is symmetrically arranged on both sides of the guide groove on the front bevel positioning plate, the guide module comprises a guide module main body, a guide support, a locking part and a locking mechanism, the guide module main body penetrates through the guide limiting space, and the shape of the guide module main body matches the structure of the guide limiting space, a guide module limiting through slot is arranged in the middle part of the guide module main body, the guide support is fixedly installed in the guide module limiting through slot, the guide support comprises a support part and a guide surface, the support part is two, and each is fixedly installed on the bottom of the guide module main body and leaves a gap with the side of the guide module main body, the guide surface is an arc structure fixedly connected between the two support parts, the locking part is located on both sides of the guide module limiting through slot, the locking part is provided with a guide module fixing hole, the front bevel positioning plate fixing hole and the guide module fixing hole are provided with a fixing pin, the fixing pin is provided with an eccentric through hole, the locking mechanism comprises a knob, a locking pin and a locking sheet, the locking pin penetrates through the eccentric through hole, the knob is installed on one end of the locking pin, the locking sheet is installed on the other end of the locking pin, and a torsional spring is installed between the locking pin and the knob.

[0013] Optimally, the upper baffle is arranged in parallel with the intercondylar box of the femoral condyle prosthesis.

[0014] Further, two said side plate inner sides are respectively provided with a holder fixing groove, and two said side plate upper ends are provided with a holder positioning groove, the holder comprises a main body rod, a pressing block, a knob, a quick connector and a fixing sheet, the fixing sheet is fixedly installed at one end of the main body rod, and the fixing sheet is provided with two arc surfaces, the main body rod is provided with an external thread at the middle part, the knob is threadedly connected and installed at the external thread, the pressing block is sleeved on the main body rod and located between the knob and the fixing sheet, the pressing block is provided with a step at the middle part, and two protrusions are arranged at the step, the quick connector is fixedly arranged at the other end of the main body rod, and the knob is provided with a plurality of anti-skid grooves.

[0015] Further, the hollow drill is a trephine, and the hollow drill comprises a hollow drill blade mouth part, a hollow drill guide part, a hollow drill connecting part and a hollow drill driving part, the hollow drill connecting part is fixedly connected between the hollow drill guide part and the hollow drill driving part, and a limiting step is arranged between the hollow drill connecting part and the hollow drill guide part, the hollow drill blade mouth part is located at the front end of the hollow drill guide part, the hollow drill blade mouth part is a serrated blade mouth, and the hollow drill guide part is provided with a plurality of hollow drill chip removal grooves.

[0016] Further, the bone chisel comprises a bone chisel connecting part, a bone chisel tailstock, a bone chisel guide part, a bone chisel front blade and a bone chisel side blade, the bone chisel connecting part is fixedly arranged at the rear part of the bone chisel tailstock, the bone chisel guide part is arranged at the front part of the bone chisel tailstock on both sides, the bone chisel side blade and the bone chisel front blade are arranged at the front end of the bone chisel guide part, the bone chisel tailstock, the bone chisel guide part, the bone chisel front blade and the bone chisel side blade surround a guide space with an opening, a limiting plane is arranged between the bone chisel tailstock and the bone chisel guide part, and the bone chisel guide part is provided with a bone chisel chip removal hole.

[0017] The utility model has the advantages that:

[0018] The knee joint posterior cruciate ligament replacement type surgical rapid processing system tool has the following advantages:

[0019] (1) The intercondylar osteotomy module is an integral structure and has the anatomical characteristics of left and right same type condyle test module shapes superimposed, and universal application of the front condyle positioning plate in left and right side surgeries is realized.

[0020] (2) The intercondylar osteotomy module is provided with a guide groove, and the guide groove is surrounded by an upper baffle and two side plates to form a guide limiting space, and the holding component can be detachably installed at the guide limiting space according to needs, the intercondylar osteotomy module can be locked and clamped through the holder, so that the intercondylar osteotomy module can be conveniently fixed after being adjusted to a suitable position of the distal end of the femur, the guide module can be detachably installed at the guide limiting space according to needs, the guide module can be quickly disassembled and assembled during operation, when the guide module is installed, the hollow drill and the bone chisel can be combined to cut, and when the guide module is removed, the guide limiting space of the intercondylar osteotomy module can be used as a saw blade guide osteotomy groove, so that the two different osteotomy modes of saw osteotomy and bone drill osteotomy can be switched to adapt to different types of PS prostheses.

[0021] (3) The hollow drill and the bone chisel can be detachably installed at the guide limiting space or installed on the guide module according to needs, in the rough processing stage, the hollow drill can be used to quickly remove the cancellous bone at a low speed and a high torque, and in the finishing stage, the bone chisel can be used for processing, so that the osteotomy surface can be seamlessly matched with the prosthesis, and secondary trimming is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an intercondylar osteotomy module, a guide module and a hollow drill assembly structure schematic view of the utility model.

[0023] Figure 2 It is an intercondylar osteotomy module, a guide module and a bone chisel assembly structure schematic view of the utility model.

[0024] Figure 3 It is an intercondylar osteotomy module and a holding component assembly structure schematic view of the utility model.

[0025] Figure 4 It is an intercondylar osteotomy module, a guide module and a bone tissue assembly structure schematic view of the utility model.

[0026] Figure 5 It is an intercondylar osteotomy module structure schematic view of the utility model.

[0027] Figure 6 It is a guide module structure schematic view of the utility model.

[0028] Figure 7 It is a holder structure schematic view of the utility model.

[0029] Figure 8 It is a hollow drill structure schematic view of the utility model.

[0030] Figure 9 It is a bone chisel structure schematic view of the utility model.

[0031] Figure: 1, intercondylar osteotomy module; 11, base plate; 111, base plate fixing hole; 112, base plate positioning hole; 12, posterior condyle positioning plate; 13, anterior condyle positioning plate; 131, anterior condyle positioning plate fixing hole; 132, window; 14, anterior bevel positioning plate; 141, anterior bevel positioning plate fixing hole; 15, posterior bevel positioning plate; 16, guide slot; 161, side plate; 162, upper stop plate; 163, holder fixing slot; 164, holder positioning groove; 2, guide module; 21, guide module main body; 22, guide support; 221, support part; 222, guide surface; 23, locking part; 24, locking mechanism; 241, knob; 242, locking pin; 243, locking piece; 25, guide module limiting through slot; 26, fixing pin; 27, gap; 28, guide module fixing hole; 3, hollow drill; 31, hollow drill driving part; 32, hollow drill connecting part; 33, hollow drill chip removal slot; 34, hollow drill guide part; 35, hollow drill blade part; 36, limiting step; 4, osteotome; 41, osteotome tailstock; 42, osteotome guide part; 43, osteotome front blade; 44, osteotome side blade; 45, osteotome connecting part; 46, limiting plane; 47, osteotome chip removal slot; 5, holding component; 51, main body rod; 52, quick connector; 53, knob; 54, anti-slip groove; 55, pressing block; 56, protrusion; 57, fixing piece; 58, step; 6, bone tissue. DETAILED DESCRIPTION

[0032] A knee posterior cruciate ligament replacement surgery rapid processing system tool, the assembly structure schematic diagram is as shown in Figures 1 to 4 It includes intercondylar osteotomy module 1, guide module 2, hollow drill 3, osteotome 4 and holding component 5, the intercondylar osteotomy module is an integral structure and has the anatomical characteristics of the superimposed contour of the same model of left and right condyle templates, the intercondylar osteotomy module is provided with guide slot 16, the guide slot is surrounded by upper stop plate 162 and two side plates 161 to form a guide limiting space, the guide module and the holding component can be detachably installed in the guide limiting space as needed, and the hollow drill and the osteotome can be detachably installed in the guide limiting space or on the guide module as needed.

[0033] The structure schematic diagram of the intercondylar osteotomy module is as shown in Figure 5 It is an integral structure and has the anatomical characteristics of the superimposed contour of the same condyle template on the left and right sides. By superimposing the anatomical characteristics of the bilateral condyle templates, the universal application of the anterior condyle positioning plate in left and right side surgeries can be realized.

[0034] The intercondylar osteotomy module is provided with a guide groove, and the guide groove is surrounded by an upper baffle and two side plates to form a guide limiting space. The guide module can be detachably installed in the guide limiting space according to needs. Since the intercondylar osteotomy module is provided with the upper baffle and the two side plates at the guide groove, the guide limiting space is increased, so that the intercondylar osteotomy module can also be used as a saw blade guide osteotomy groove without the guide module, thereby realizing the swing saw osteotomy mode. In addition, the holding component can be installed in the guide limiting space to facilitate holding the intercondylar osteotomy module and smoothly punching the intercondylar osteotomy module on the distal end surface of the bone tissue.

[0035] When the guide module is installed, the hollow drill and the bone chisel composite cutting technology can be used. In the rough processing stage, the hollow drill is used to quickly remove the cancellous bone at low speed and high torque. In the finishing stage, the bone chisel can be used for processing to ensure that the osteotomy surface is seamlessly matched with the prosthesis, thereby avoiding secondary trimming and meeting the switching needs between the swing saw osteotomy and the bone drill osteotomy, so as to adapt to different types of PS prostheses.

[0036] Further, the intercondylar osteotomy module includes a bottom plate 11, a front condyle positioning plate 13, a rear condyle positioning plate 12, a front inclined surface positioning plate 14, and a rear inclined surface positioning plate 15. The front inclined surface positioning plate and the rear inclined surface positioning plate are respectively fixedly arranged on the front and rear sides of the bottom plate. The rear condyle positioning plate is fixedly arranged on the rear side of the rear inclined surface positioning plate. The front condyle positioning plate is fixedly arranged on the front side of the front inclined surface positioning plate. The shape of the front condyle positioning plate is the shape after superimposing the middle parts of the left condyle outer contour and the right condyle outer contour. A plurality of front condyle positioning plate fixing holes 131 are arranged on the upper part of the superimposed part of the left condyle outer contour and the right condyle outer contour. Windows 132 are arranged on the non-superimposed parts on both sides of the plurality of front condyle positioning plate fixing holes. The inner edges of the two windows respectively correspond to the inner edges of the left condyle or the right condyle. The guide groove is arranged on the lower part of the front condyle positioning plate and penetrates through the intercondylar osteotomy module.

[0037] The intercondylar osteotomy module includes a bottom plate, a front condyle positioning plate, a rear condyle positioning plate, a front inclined surface positioning plate, and a rear inclined surface positioning plate. The front inclined surface positioning plate and the rear inclined surface positioning plate are respectively fixedly arranged at the two sides of the bottom plate. The rear condyle positioning plate is fixedly arranged on the rear of the rear inclined surface positioning plate. The front condyle positioning plate is fixedly arranged on front of the front inclined surface positioning plate. The bottom plate, the front condyle positioning plate, the rear condyle positioning plate, the front inclined surface positioning plate, and the rear inclined surface positioning plate correspond to the five surfaces of the condyle trial, so that the fit of the inner surface with the bone can be verified in advance. The module body can be integrally machined from a metal material and has a certain strength. It can shape the bone after osteotomy in the previous surgical procedure, so that the bone surface is smooth, facilitating smooth installation of the subsequent condyle trial, so that the posterior cruciate ligament replacement intercondylar osteotomy module can better contact the bone tissue 6 of the distal femur after the distal osteotomy is completed, which is beneficial to the positioning and osteotomy operations in the later stage.

[0038] The shape of the anterior condyle positioning plate is the superposition of the outer contours of the left and right condyles, so that the intercondylar osteotomy module has the anatomical features of the superposition of the outer contours of the left and right condyle trial molds, so as to realize the universal application of the anterior condyle positioning plate in left and right side surgery.

[0039] The anterior condyle positioning plate has multiple fixing holes on the upper part of the overlapping part of the left and right condyle outer contours. On the non-overlapping parts on both sides of the multiple fixing holes, there are viewing windows. The inner edges of the two viewing windows correspond to the inner edges of the left or right condyle, respectively. This makes the anterior condyle positioning plate more suitable for universal application in left and right side surgery and facilitates intraoperative observation of the fit between the anterior condyle positioning plate and the anterior condyle osteotomy surface.

[0040] The optimized design uses three fixing holes for the anterior condyle positioning plate. One fixing hole is located on the center line of the anterior condyle positioning plate, while the other two fixing holes are located near the inner edges of the two viewing windows. This design allows for the fixation of the anterior condyle positioning plate to the corresponding anterior condyle osteotomy surface with the fewest possible fixing holes, while ensuring a good fixation effect.

[0041] Furthermore, the shape and size of the outer edge of the upper end of the anterior condyle positioning plate are consistent with the shape and size of the outer edge of the femoral condyle prosthesis to be installed, which makes the position of the intercondylar osteotomy module more intuitive and the positioning more accurate during installation.

[0042] The optimized base plate has base plate fixing holes 111 and base plate positioning holes 112 on both sides of the guide groove. The base plate fixing holes are oblique holes. The oblique holes generate a squeezing force on the side. When they cooperate with the anterior condyle positioning plate fixing holes, they can prevent the intercondylar osteotomy module from detaching from the osteotomy surface and prevent the intercondylar osteotomy module from moving during intercondylar osteotomy, which would cause inaccurate osteotomy.

[0043] By drilling holes in the base plate positioning holes on the human femur, the intercondylar osteotomy module can be removed from the human femur. This makes it easier to insert the connecting post on the femoral condyle prosthesis, which is used to connect with the human femur, into the positioning holes on the human femur, thus achieving a good fit and positioning between the femoral condyle prosthesis and the human femur.

[0044] Furthermore, the front inclined positioning plate has stepped front inclined positioning plate fixing holes 141 symmetrically opened on both sides of the guide groove.

[0045] The structural diagram of the guide module is as follows: Figure 6As shown, the guide module includes a guide module body 21, a guide support 22, a locking part 23, and a locking mechanism 24. The guide module body passes through the guide limiting space, and the shape of the guide module body matches the structure of the guide limiting space. A guide module limiting through groove 25 is opened in the middle of the guide module body. The guide support is fixedly installed in the guide module limiting through groove. The guide support includes a support part 221 and a guide surface 222. The support part consists of two parts, which are respectively fixedly installed at the bottom of the guide module body and leave a gap 27 between them and the side of the guide module body. The guide surface is arc-shaped. The structure is fixedly connected between two support parts. The locking part is located on both sides of the guide module limiting through groove. The locking part has a guide module fixing hole 28. The fixing pin 26 passes through the fixing hole of the front inclined positioning plate and the fixing hole of the guide module. The fixing pin has an eccentric through hole. The locking mechanism includes a knob 241, a locking pin 242 and a locking piece 243. The locking pin passes through the eccentric through hole. The knob is installed at one end of the locking pin and the locking piece is installed at the other end of the locking pin. A torsion spring is installed between the locking pin and the knob.

[0046] The knobs and locking pins can be joined together using a spline clip, and the locking plate and locking pins can be welded together. When installing the guide module, pinch the two knobs to rotate the two locking pins simultaneously, thereby rotating the locking plate into the top plane of the fixing pin. The fixing pin can then pass through the fixing hole of the front inclined positioning plate. Then, release the two knobs, and the locking pins will reset under the restoring force of the torsion spring, causing the locking plate to rotate to protrude beyond the top plane of the fixing pin, thus preventing the fixing pin from coming out of the fixing hole of the front inclined positioning plate. This achieves quick installation and locking of the guide module and the intercondylar osteotomy module. When disassembling, similarly, pinch the two knobs to rotate the two locking pins, causing the locking plate to rotate into the top plane of the fixing pin, and then pull out the guide module.

[0047] The optimized design places the upper baffle parallel to the intercondylar cascade of the femoral condyle prosthesis, rather than parallel to the base plate, to facilitate precise cutting of the intercondylar cascade shape.

[0048] Furthermore, the inner sides of the two side plates are respectively provided with gripper fixing grooves 163, and the upper ends of the two side plates are provided with gripper positioning grooves 164.

[0049] The schematic diagram of the holder structure is as follows: Figure 7As shown, the grip includes a main body rod 51, a pressure block 55, a knob 53, a quick connector 52, and a fixing plate 57. The fixing plate is fixedly installed at one end of the main body rod, or the fixing plate can be integrally formed with the main body rod. The fixing plate has two arc surfaces. The main body rod has an external thread in the middle. The knob is threadedly installed at the external thread. The pressure block is fitted onto the main body rod and is located between the knob and the fixing plate. The pressure block has a step 58 in the middle and two protrusions 56 at the step. The quick connector is fixedly installed at the other end of the main body rod, or the quick connector can be integrally formed with the main body rod. The knob has multiple anti-slip grooves 54.

[0050] During installation, insert the holder into the guide limiting space of the intercondylar osteotomy module, rotate the main rod to make the two arc surfaces of the holder fixing plate snap into the holder fixing groove, align the protrusion on the pressure block with the holder positioning groove, then rotate the knob to push the pressure block forward. When the protrusion is inserted into the bottom of the holder positioning groove of the intercondylar osteotomy module, the holder and the intercondylar osteotomy module are locked together. The intercondylar osteotomy module is locked and secured by the holder, making it easy to adjust the intercondylar osteotomy module to a suitable position on the distal femur for fixation.

[0051] A schematic diagram of a hollow drill is shown below. Figure 8 As shown, the hollow drill is a trephine. The hollow drill includes a hollow drill cutting edge 35, a hollow drill guide 34, a hollow drill connecting part 32, and a hollow drill drive part 31. The hollow drill connecting part is fixedly connected between the hollow drill guide part and the hollow drill drive part, and a limiting step 36 is provided between the hollow drill connecting part and the hollow drill guide part. The hollow drill cutting edge is located at the front end of the hollow drill guide part and has a serrated cutting edge. The hollow drill guide part is provided with multiple hollow drill chip removal grooves 33.

[0052] The hollow drill's drive unit connects to a power source, allowing an external electric or manual tool to generate rotational driving force. This force is transmitted to the drill's cutting edge via the connecting and guide sections. When using the hollow drill, simply place it on the guide surface to perform intercondylar osteotomy until the appropriate depth is reached at the limiting step. Bone fragments generated during the procedure can be discharged through multiple chip removal channels in the hollow drill, preventing blockage and shortening surgical time. The serrated cutting edge of the hollow drill reduces the contact area with bone or soft tissue, lowering cutting resistance, increasing drilling speed, and facilitating the cutting of bone in the intercondylar fossa of the femur.

[0053] A schematic diagram of the bone chisel structure is shown below. Figure 9As shown, the bone chisel includes a bone chisel connecting part 45, a bone chisel tailstock 41, a bone chisel guide part 42, a bone chisel front cutting edge 43, and a bone chisel side cutting edge 44. The bone chisel connecting part is fixedly disposed at the rear of the bone chisel tailstock. The bone chisel guide part is disposed on both sides of the front of the bone chisel tailstock. The bone chisel side cutting edge and the bone chisel front cutting edge are both disposed at the front end of the bone chisel guide part. The bone chisel tailstock, the bone chisel guide part, the bone chisel front cutting edge, and the bone chisel side cutting edge form a guide space with an opening. A limiting plane 46 is provided between the bone chisel tailstock and the bone chisel guide part. The bone chisel guide part is provided with a bone chisel chip removal groove 47.

[0054] The bone chisel connector is used to install the striking handle. The design of the bone chisel front edge and bone chisel side edge facilitates the cutting of bone in the intercondylar region of the femur. The bone chisel tailstock, bone chisel guide, bone chisel front edge, and bone chisel side edge form a guide space with an opening. The bone chisel guide is provided with a bone chisel chip removal hole, and the cut bone chips can be discharged through the guide space and the bone chisel chip removal groove.

[0055] When installing the bone chisel, the opening of the guide space faces downwards, and the guide part of the bone chisel is inserted into the gap between the support part of the guide module and the side part of the intercondylar osteotomy module, thereby achieving the guidance of the bone chisel, and the disassembly and assembly are very convenient and quick.

[0056] In summary, the posterior cruciate ligament replacement surgery rapid treatment system proposed in this utility model realizes the universal application of the anterior condyle positioning plate in left and right side surgery, and can meet the need for rapid switching between different osteotomy methods such as oscillating saw osteotomy and bone drill osteotomy.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid surgical system for posterior cruciate ligament replacement surgery of the knee joint, characterized in that: The device includes an intercondylar osteotomy module, a guide module, a hollow drill, a bone chisel, and a holding component. The intercondylar osteotomy module is a one-piece molded structure with anatomical features of overlapping left and right condylar test molds of the same model. The intercondylar osteotomy module is provided with a guide groove, and the guide groove is surrounded by an upper baffle and two side plates to form a guide limiting space. The guide module and the holding component can be detachably installed in the guide limiting space as needed. The hollow drill and bone chisel can be detachably installed in the guide limiting space or installed on the guide module as needed.

2. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 1, characterized in that: The intercondylar osteotomy module includes a base plate, an anterior condylar positioning plate, a posterior condylar positioning plate, an anterior oblique positioning plate, and a posterior oblique positioning plate. The anterior oblique positioning plate and the posterior oblique positioning plate are respectively fixedly and obliquely on the front and rear sides of the base plate. The posterior condylar positioning plate is fixedly located on the rear side of the posterior oblique positioning plate, and the anterior condylar positioning plate is fixedly located on the front side of the anterior oblique positioning plate. The shape of the anterior condylar positioning plate is the superposition of the middle part of the outer contour of the left condyle and the outer contour of the right condyle. The anterior condylar positioning plate has multiple anterior condylar positioning plate fixing holes on the upper part of the superposition part of the middle part of the outer contour of the left condyle and the outer contour of the right condyle. Viewing windows are provided on the non-superposition parts on both sides of the multiple anterior condylar positioning plate fixing holes, and the inner edges of the two viewing windows correspond to the inner edges of the corresponding left or right condyle. The guide groove is located on the lower part of the anterior condylar positioning plate and penetrates the intercondylar osteotomy module.

3. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 2, characterized in that: The anterior condyle positioning plate has three fixing holes, one of which is located on the center line of the anterior condyle positioning plate, and the other two are located near the inner edges of the two viewing windows.

4. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 2, characterized in that: The shape and size of the outer edge of the upper end of the anterior condyle positioning plate are consistent with the shape and size of the outer edge of the femoral condyle prosthesis to be installed.

5. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 2, characterized in that: The base plate has a base plate fixing hole and a base plate positioning hole on both sides of the guide groove, and the base plate fixing hole is an oblique hole.

6. The rapid treatment system tool for posterior cruciate ligament replacement surgery of the knee joint according to claim 2, characterized in that: The front inclined positioning plate has stepped front inclined positioning plate fixing holes symmetrically opened on both sides of the guide groove. The guide module includes a guide module body, a guide support, a locking part, and a locking mechanism. The guide module body passes through the guide limiting space, and the shape of the guide module body matches the structure of the guide limiting space. A guide module limiting through groove is opened in the middle of the guide module body. The guide support is fixedly installed in the guide module limiting through groove. The guide support includes a support part and a guide surface. The support part consists of two parts, which are respectively fixedly installed at the bottom of the guide module body and are connected to the guide surface. A gap is left on the side of the module body. The guide surface is an arc-shaped structure fixedly connected between two support parts. The locking part is located on both sides of the guide module limiting through groove. The locking part has a guide module fixing hole. The front inclined positioning plate fixing hole and the guide module fixing hole are provided with fixing pins. The fixing pin has an eccentric through hole. The locking mechanism includes a knob, a locking pin and a locking piece. The locking pin passes through the eccentric through hole. The knob is installed at one end of the locking pin. The locking piece is installed at the other end of the locking pin. A torsion spring is installed between the locking pin and the knob.

7. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 1, characterized in that: The upper baffle is arranged parallel to the intercondylar cascade of the femoral condyle prosthesis.

8. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 1, characterized in that: The inner sides of the two side plates are respectively provided with gripper fixing grooves, and the upper ends of the two side plates are provided with gripper positioning grooves. The gripper includes a main rod, a pressure block, a knob, a quick connector and a fixing plate. The fixing plate is fixedly installed at one end of the main rod and has two arc surfaces. The main rod has an external thread in the middle. The knob is threadedly installed at the external thread. The pressure block is fitted on the main rod and is located between the knob and the fixing plate. The pressure block has a step in the middle and two protrusions at the step. The quick connector is fixedly installed at the other end of the main rod. The knob has multiple anti-slip grooves.

9. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 6, characterized in that: The hollow drill is a trephine, which includes a hollow drill cutting edge, a hollow drill guide, a hollow drill connecting part, and a hollow drill drive part. The hollow drill connecting part is fixedly connected between the hollow drill guide and the hollow drill drive part, and a limiting step is provided between the hollow drill connecting part and the hollow drill guide. The hollow drill cutting edge is located at the front end of the hollow drill guide and has a serrated cutting edge. The hollow drill guide is provided with multiple hollow drill chip removal grooves.

10. The rapid treatment system for posterior cruciate ligament replacement surgery of the knee joint according to claim 6, characterized in that: The bone chisel includes a bone chisel connecting part, a bone chisel tailstock, a bone chisel guide part, a bone chisel front cutting edge, and a bone chisel side cutting edge. The bone chisel connecting part is fixedly disposed at the rear of the bone chisel tailstock. The bone chisel guide part is disposed on both sides of the front of the bone chisel tailstock. The bone chisel side cutting edge and the bone chisel front cutting edge are both disposed at the front end of the bone chisel guide part. The bone chisel tailstock, the bone chisel guide part, the bone chisel front cutting edge, and the bone chisel side cutting edge form a guide space with an opening. A limiting plane is provided between the bone chisel tailstock and the bone chisel guide part. The bone chisel guide part is provided with a bone chisel chip removal hole.

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