WO2022252625A1

WO2022252625A1 - Periarticular repair plate and periarticular repair system

Info

Publication number: WO2022252625A1
Application number: PCT/CN2022/071741
Authority: WO
Inventors: 王建华; 范明; 马康玲; 董明明
Original assignee: 上海凯利泰医疗科技股份有限公司
Priority date: 2021-05-31
Filing date: 2022-01-13
Publication date: 2022-12-08

Abstract

A periarticular repair plate (01) and a periarticular repair system, the periarticular repair plate (01) comprising a plurality of locking parts (1) and connecting parts (2) that are disposed between adjacent locking parts (1). The locking parts (1) and the connecting parts (2) are sequentially connected in a row to form the elongated periarticular repair plate (01); the locking parts (1) are each provided with a locking hole (101) that cooperates with a bone screw, the periarticular repair plate (01) is fixed to a peripheral joint by means of bone screws; the connecting parts (2) are each provided with a fixing hole (201) that cooperates with a suture and/or an artificial ligament; on a surface of each connecting part (2) facing the peripheral joint, at least one side of the width of the periarticular repair plate (01) is arranged offset toward a side away from the peripheral joint, enabling a gap between the connecting parts (2) and the peripheral joint to be left, such that the sutures and/or artificial ligaments passes through the gap into the fixing holes (201).

Description

A periarticular repair plate and a periarticular repair system

technical field

The invention relates to the technical field of medical device design, in particular to a periarticular repair plate.

Background technique

The periarticular structure of the human body refers to bone joints and their surrounding tissues, including: bone tissue, tendons, joint capsules, ligaments, etc. Periarticular soft tissue injuries are often accompanied by fractures of small bone fragments around the joints. The repair of such soft tissue and bone injuries is currently a technical problem in the field of orthopedics. The methods and concepts of soft tissue repair and fracture repair are completely different, and the instruments and implants used in the operation are also quite different. Fracture repair surgery is usually based on the internal fixation of the locking nail-plate system, while soft tissue repair usually uses products such as anchors with wires for suture repair.

At present, there are three main fixation methods for periarticular soft tissue avulsion fractures: direct fixation with simple screws, internal fixation with locking nail-plate system, and indirect fixation with simple anchors. Simple lag screws can only fix fracture fragments; wire anchors cannot effectively fix large areas of soft tissue due to the limitations of their own fixation methods, especially when encountering comminuted fractures, osteoporosis patients, and large avulsion fractures. In the case of serious bone defects, the repair method with threaded anchors will show shortcomings such as small tissue fixation area, weak suture fixation force and low pull-out resistance strength, resulting in repair failure and poor postoperative effect; among them, locking The nail-plate system is the most secure for fracture fixation, and it is the best fixation method for comminuted periarticular avulsion fractures with large displacement. Early functional exercise can be performed after surgery to achieve the ideal curative effect, but the following defects still exist:

First: When bone plates and sutures are required to be used in combination to repair periarticular soft tissue damage, the bone plate structure of the existing nail-plate system on the market is aimed at the suture passing, knotting, and hooking structures The design is flawed, and it is easy to cause inconvenient suture operation during the operation.

Second: the bone plate body structure of the existing nail-plate system on the market is a fixed anatomical shape, and the overall thickness is consistent. During the operation, anatomical shaping and quick shearing cannot be performed according to individual patient differences.

Third: The size of the existing bone plate on the market is too large, resulting in a large incision and unnecessary soft tissue stripping during the operation, which causes great damage to the patient.

Contents of the invention

Aiming at the problems in the background technology, the present invention provides a periarticular repair plate for repairing periarticular joints with bone screws and sutures and/or artificial ligaments, which is characterized in that it includes multiple locking parts and is arranged on The connecting parts between the adjacent locking parts, the locking parts and the connecting parts are sequentially connected in a row to form an elongated periarticular repair plate;

The locking part is provided with a locking hole matched with the bone screw, and the periarticular repair plate is fixed to the periarticular joint through the bone screw;

The connecting part is provided with a fixing hole that cooperates with the suture and/or artificial ligament; on the side of the connecting part facing the periarticular joint, at least one side of the periarticular repair plate is laterally away from the surrounding joint. One side of the joint is deviated, so that there is a gap between the connecting part and the surrounding joint, and the suture and/or artificial ligament pass through the gap into the fixing hole.

In some embodiments, the periarticular repair plate is generally in an arc shape that fits the periarticular joint.

In some embodiments, the side of the connecting portion facing the periarticular joint is in the shape of an arc that is concave toward the side away from the periarticular joint.

In some embodiments, at least one end of the connecting portion in the width direction of the periarticular repair plate is upwardly tilted toward a side away from the periarticular joint.

In some embodiments, both ends of the connecting portion in the width direction of the periarticular repair plate are set upward toward a side away from the periarticular joint.

In some embodiments, the connecting portion is generally arc-shaped.

In some embodiments, the connecting portion has a thickness smaller than that of the locking portion. In some embodiments, arc-shaped grooves are provided at both ends of the periarticular repair plate in the width direction at the joint between the connecting portion and the locking portion.

In some embodiments, the locking hole is a threaded hole, the fixing hole is a smooth hole, and the axes of the locking hole and the fixing hole are both perpendicular to the periarticular repair plate.

In some embodiments, the fixing holes are circular, drop-shaped or oval.

In some embodiments, in the width direction of the periarticular repair plate, at least one side is provided with a plurality of flanks along its length direction for positioning and fixing sutures and/or artificial ligaments.

In some embodiments, the side wings include a connection end connected to the periarticular repair plate, a free end fitted with sutures and/or artificial ligaments, and the width of the free end is greater than the width of the connection end.

In some embodiments, the free end is in the shape of a drop or a tadpole or a hook.

In some embodiments, the free end is upturned to a side away from the periarticular joint.

In some embodiments, wire slots are provided on the side of the flank facing the periarticular joint.

In some embodiments, the wings are provided on the connecting portion.

In some embodiments, each edge of the periarticular repair plate is rounded.

The present invention also provides a periarticular repair system, comprising bone screws, sutures and/or artificial ligaments and a periarticular repair plate, wherein the periarticular repair plate adopts the periarticular repair plate as described above; the bone screw The periarticular repair plate is fixed on the periarticular bone through the locking nail hole, and the suture and/or artificial ligament sutures the periarticular soft tissue and is fixed through the fixing hole.

In some embodiments, the periarticular repair system further includes a guide member, a guide hole is provided on the guide member, and it is connected in the locking hole for guiding the punching device to punch a hole in the bone.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical solutions:

The periarticular repair plate provided by the present invention is fixed to the periarticular bone through the cooperation of bone screws and locking holes, then the soft tissues around the periarticular joint are sutured by sutures and/or artificial ligaments, and finally the sutures and/or artificial The ligament is perforated in the fixation hole to achieve positioning and fixation. This solution can not only effectively suture the torn soft tissue, but also effectively fix and repair the fracture caused by the torn soft tissue through the periarticular repair plate, so that the repair of both Organically combined to obtain better surgical results. At the same time, the present invention also designs the side of the connecting portion facing the periarticular joint to at least partially deviate from the periarticular joint to form a gap for the suture and/or artificial ligament to pass through, thereby solving the problem of suture and/or artificial ligament in the prior art. The problem of inconvenient thread passing makes it more convenient and faster to pass and tie the suture during the clinical operation;

Description of drawings

The above and other features and advantages of the present invention can be more clearly understood through the following detailed description in conjunction with the accompanying drawings, wherein:

Fig. 1 is the frontal structure schematic diagram of periarticular repair plate in embodiment 1;

Fig. 2 is a schematic diagram of the back structure of the periarticular repair plate in Example 1;

Fig. 3 is the front view of periarticular repair plate in embodiment 1;

Fig. 4 is the top view of periarticular repair plate in embodiment 1;

Fig. 5 is a schematic structural view of the periarticular repair plate in Example 2;

Fig. 6 is the front view of the periarticular repair plate in embodiment 2;

Fig. 7 is the top view of periarticular repair plate in embodiment 2;

Figure 8 is a schematic structural view of the periarticular repair plate in Example 3;

Fig. 9 is the front view of the periarticular repair plate in embodiment 3;

Figure 10 is a top view of the periarticular repair plate in Example 3;

11 is a schematic structural view of the periarticular repair system in Example 4;

Fig. 12 is a schematic structural view of the guide in Embodiment 4.

Detailed ways

The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

Example 1

Referring to Figures 1-4, the present invention provides a periarticular repair plate for repairing a periarticular joint with bone screws and sutures and/or artificial ligaments; the periarticular repair plate includes a plurality of locking parts 1 and a set In the connecting part 2 between adjacent locking parts 1, a plurality of locking parts 1 and connecting parts 2 are sequentially connected in a row to form a strip-shaped periarticular repair plate; The locking hole 101 of the periarticular joint repair plate is fixed to the periarticular joint by bone screws; the connecting part 2 is provided with a fixing hole 201 that cooperates with sutures and/or artificial ligaments; on the side of the connecting part 2 facing the periarticular joint, at least The side of the periarticular repair plate in the width direction deviates from the side away from the periarticular joint, so that there is a gap between the connecting part 2 and the periarticular joint, and the suture and/or artificial ligament pass through the gap into the fixing hole 201 to realize positioning and fixed.

The periarticular repair plate provided by the present invention is fixed to the periarticular bone through the cooperation of bone screws and locking holes, then the soft tissues around the periarticular joint are sutured by sutures and/or artificial ligaments, and finally the sutures and/or artificial The ligament is perforated in the fixation hole to achieve positioning and fixation. This solution can not only effectively suture the torn soft tissue, but also effectively fix and repair the fracture caused by the torn soft tissue through the periarticular repair plate, so that the repair of both Organically combined to obtain better surgical results. At the same time, the present invention also designs the side of the connecting portion facing the periarticular joint to at least partially deviate from the periarticular joint to form a gap for the suture and/or artificial ligament to pass through, thereby solving the problem of suture and/or artificial ligament in the prior art. The inconvenient problem of passing the thread makes it more convenient and quicker to pass and tie the suture during the clinical operation.

In this embodiment, a plurality of locking parts 1 and a plurality of connecting parts 2 are integrally formed to form an elongated periarticular repair plate. Further preferably, the periarticular repair plate is in the shape of a long arc that fits the periarticular joint as a whole, so that the periarticular repair plate can be better fitted on the periarticular joint, ensuring the repair effect on the periarticular joint; of course, in other implementations In an example, the periarticular repair plate can be in a straight line before use, and when it is to be used, the periarticular repair plate is bent into a required arc shape, which is not limited here and can be selected according to specific needs.

In this embodiment, the thickness of the connecting part 2 is preferably smaller than that of the locking part 1, and the difference in thickness facilitates the anatomical plasticity and quick shearing of the periarticular repair plate at the joint, which has strong plasticity and a wide range of clinical applications. In this embodiment, as shown in FIG. 4 , the side of the connecting portion 2 facing the joint is in an arc shape concave toward the side away from the joint, thereby forming an inner concave portion 202, which constitutes a suture supply. And/or the gap through which the artificial ligament passes; specifically, the inner concave portion 202 extends along the width direction of the periarticular repair plate.

In this embodiment, through the setting of the inner concave part 202 on the connecting part, the thickness of the connecting part 2 is smaller than the thickness of the locking part 1 (as shown in Figure 4), so that on the one hand, it forms an opening for sutures and/or artificial ligaments to pass through. On the other hand, it is conducive to the anatomical plasticity and quick shearing of the periarticular repair plate, which has strong plasticity and a wide range of clinical applications.

Of course, in other embodiments, the scheme of forming a gap for the passage of sutures and/or artificial ligaments on the connecting part 2 is not limited to the above, and can be adjusted according to specific conditions, for example, the width of the connecting part in the periarticular repair plate The two ends in the direction are upturned to the side away from the peri-joint, etc., and there is no limitation here.

In this embodiment, the outer rings of the locking part 1 and the connecting part 2 are in the shape of a circular arc, and the connection between the connecting part 2 and the locking part 1 forms an arc-shaped groove 4 at both ends of the periarticular repair plate in the width direction. The setting of the shaped groove 4 is convenient for the doctor to quickly shape or quickly cut the plate during the operation, has strong plasticity, and has a wide range of clinical applications.

Of course, in other embodiments, the outer ring shapes of the locking part 1 and the connecting part 2 can also be other shapes, which can be adjusted according to specific situations and are not limited here.

In this embodiment, the axial directions of the locking hole 101 and the fixing hole 201 are both perpendicular to the periarticular repair plate; the locking hole 101 is a threaded hole for threaded connection with the bone screw; the fixing hole 201 is a light hole for sewing Threads and/or artificial ligaments are threaded and tied in the fixing holes 201 for fixing or positioning.

Further, in this embodiment, the fixing hole 201 is in the shape of a drop, which facilitates the positioning of sutures and/or artificial ligaments in the fixing hole 201; of course, in other embodiments, the shape of the fixing hole 201 is not limited to the above, It can also be circular or oval, etc., which can be selected according to specific conditions.

In this embodiment, in the width direction of the periarticular repair plate, one side is provided with several lateral wings 3 along its length direction for positioning and fixing sutures and/or artificial ligaments. Tie-off and fixation of wires and/or artificial ligaments. Of course, in other embodiments, several flanks 3 can also be provided on both sides of the periarticular repair plate, which can be selected according to specific conditions, and are not limited here.

Specifically, the flank 3 includes a connecting end connected to the connecting part 2, a free end matched with the suture and/or artificial ligament; further, the width of the free end is greater than the width of the connecting end, so that the suture and/or artificial ligament are wound or When the knot is tied on the free end, it is not easy to fall off, which improves the stability of the knotted suture and/or artificial ligament.

Further, the free end of the side wing 3 (that is, the end away from the periarticular repair plate) is set up to the side away from the periarticular joint, so that the design makes it more convenient and quicker to pass and tie the suture during the clinical operation, At the same time, the stability of the connection is guaranteed.

Further, in this embodiment, the free end of the wing 3 is in the shape of a drop; of course, in other embodiments, the free end may also be in the shape of a tadpole or a hook, which is not limited here and can be selected according to specific circumstances.

Further, a wire slot 301 is provided on the side of the side wing 3 facing the periarticular joint, and the wire slot 301 is extended along the length direction of the periarticular repair plate; It is more effective in preventing slippage of sutures and/or artificial ligaments during and after surgery.

In this embodiment, each connecting part 2 is provided with a side wing 3, of course, in other embodiments, the side wing 3 can also be provided on the locking part 1, or only a part of the connecting part 2 or the locking part 1 can be provided with a side wing. 3. There are no restrictions here and can be adjusted according to specific circumstances.

In this embodiment, each edge of the periarticular repair plate is provided with a rounded corner 5, which is specifically reflected in that the outer rings of the locking part 1, the connecting part 2, and the side wings 3 are rounded; Set to reduce damage to soft tissue.

Example 2

This embodiment is an adjustment made on the basis of Embodiment 1.

Referring to Figures 5-7, the connection part 2 in this embodiment has an arc shape as a whole, so that the side of the connection part 2 facing the periarticular joint is set away from the periarticular joint to form a gap for the passage of sutures and/or artificial ligaments.

In this embodiment, the fixing hole on the connecting part 2 is circular, and the side wings 3 are tadpole-shaped.

Other structures of the periarticular repair plate in this embodiment can refer to the description in Embodiment 1, and will not be repeated here.

Example 3

This embodiment is an adjustment made on the basis of Embodiment 2.

Referring to Figures 8-10, in this embodiment, the fixing hole on the connecting part 2 is oval; the side wings 3 are hook-shaped, so as to better catch the suture and/or artificial ligament and prevent it from falling off; and The direction of the hook of the side wing 3 is to the left or the right, which is not limited here and can be selected according to specific conditions.

Example 4

11-12, the present invention also provides a periarticular repair system, including bone screws, sutures and/or artificial ligaments and the periarticular repair plate 01 described in Examples 1-3; wherein, the bone screws wear Set in the locking nail hole, fix the periarticular repair plate 01 on the periarticular bone, suture the soft tissue around the periarticular joint with sutures and/or artificial ligaments, and fix it through the fixation hole 201.

In this embodiment, the periarticular repair system further includes a guide member 02, which is used to assist punching tools such as Kirschner wires or drills to accurately drill holes in the bone, so that subsequent bone screws can be fixed in the holes.

Specifically, as shown in FIG. 12 , the outer ring of the guide member 02 adopts a tapered thread 023 . A plum blossom hole 021 and a through hole 022 are coaxially arranged in the center of the guide member 02; wherein, the plum blossom hole 021 is used to cooperate with a conventional plum blossom screwdriver, and the through hole 022 is used for the use of a Kirschner wire during operation.

Initially, the guide piece 02 is screwed into the locking hole through the tapered thread 023; during operation, the periarticular reset plate 01 is placed on the periarticular joint to be fixed, and the Kirschner wire passes through the plum blossom hole 021 and the through hole 022 and then Drill holes on the periarticular joint; after the drilling is completed, remove the guide 02 from the periarticular reduction plate to facilitate the subsequent installation of bone screws.

Those skilled in the art will appreciate that the present invention may be embodied in many other specific forms without departing from its own spirit or scope. Although the embodiments of the present invention have been described, it should be understood that the present invention should not be limited to these embodiments, and that changes and modifications can be made by those skilled in the art within the spirit and scope of the invention as defined by the appended claims.

Claims

A periarticular repair plate for repairing periarticular joints with bone screws and sutures and/or artificial ligaments, characterized in that it includes a plurality of locking parts and connecting parts arranged between adjacent locking parts , the locking part and the connecting part are sequentially connected in a row to form a strip-shaped periarticular repair plate;

The locking part is provided with a locking hole matched with the bone screw, and the periarticular repair plate is fixed to the periarticular joint through the bone screw;

The connecting part is provided with a fixing hole that cooperates with the suture and/or artificial ligament; on the side of the connecting part facing the periarticular joint, at least one side of the periarticular repair plate is laterally away from the surrounding joint. One side of the joint is deviated, so that there is a gap between the connecting part and the surrounding joint, and the suture and/or artificial ligament pass through the gap into the fixing hole.
The periarticular repair plate according to claim 1, characterized in that, the periarticular repair plate as a whole has an arc shape that fits the periarticular joint.
The periarticular repair plate according to claim 1 or 2, characterized in that, the side of the connecting part facing the periarticular joint is in an arc shape concave toward the side away from the periarticular joint.
The periarticular repair plate according to claim 1 or 2, characterized in that at least one end of the connecting part in the width direction of the periarticular repair plate is set upward toward a side away from the periarticular repair plate.
The periarticular repair plate according to claim 1, wherein the thickness of the connecting portion is smaller than that of the locking portion.
The periarticular repair plate according to claim 1, characterized in that arc-shaped grooves are provided at both ends of the periarticular prosthetic plate in the width direction at the junction of the connecting portion and the locking portion.
The periarticular repair plate according to claim 1, wherein the locking hole is a threaded hole, the fixing hole is a light hole, and the axes of the locking hole and the fixing hole are both perpendicular to the periarticular repair plate .
The periarticular repair plate according to claim 1, characterized in that, the fixing hole is circular, drop-shaped or elliptical.
The periarticular repair plate according to claim 1, characterized in that, in the width direction of the periarticular repair plate, at least one side is provided with a plurality of holes for positioning and fixing sutures and/or artificial ligaments along its length direction. flank.
The periarticular repair plate according to claim 9, wherein the side wings include a connecting end connected to the periarticular repair plate, a free end that cooperates with sutures and/or artificial ligaments, and the width of the free end is greater than the width of the connecting end.
The periarticular repair plate according to claim 10, wherein the free end is in the shape of a drop, a tadpole or a hook.
The periarticular repair plate according to claim 10, characterized in that, the free ends of the side wings are upturned to the side away from the periarticular joint.
The periarticular repair plate according to claim 9, wherein a wire groove is provided on the side of the side wing facing the periarticular joint.
The periarticular repair plate according to claim 9, wherein the side wings are arranged on the connecting portion.
The periarticular repair plate according to claim 1, wherein each edge of the periarticular repair plate is rounded.
A periarticular repair system, characterized in that it includes bone screws, sutures and/or artificial ligaments, and a periarticular repair plate, wherein the periarticular repair plate adopts the periarticular repair plate according to any one of claims 1-15 repair plate; the bone screw is passed through the locking hole, and the periarticular repair plate is fixed on the periarticular bone, and the suture and/or artificial ligament are sutured to the periarticular soft tissue, and passed through the The above fixing hole is fixed.
The periarticular repair system according to claim 16, characterized in that, the periarticular repair system further comprises a guide, the guide is provided with a guide hole, and is connected in the locking hole for guiding the punching device Punch holes in the bones.