Tendon-bone healing device

Abstract

The present invention provides a tendon-bone healing device, which includes a pressure plate for fixing the tendon, a fixing member fixedly connected to the pressure plate, and a plurality of embracing claws provided on the pressure plate and protruding toward the same side. The fixing member is used to fix to the bone, and the embracing claw includes a first limiting rod extending horizontally from the pressure plate, a first connecting portion connected to the first limiting rod away from the pressure plate, and a second limiting rod connected to the first connecting portion away from one end of the first limiting rod, the second limiting rod extending vertically, and the first connecting portion being arc-shaped and elastic. The tendon-bone healing device of the present invention achieves simultaneous fixation treatment of bones and tendons by providing embracing claws and a pressure plate, and achieves fixation to the bone by providing fixing members, providing a better fixation effect, and is simple to install, avoiding the use of two instruments in two surgeries and a cutting effect on the tendon.

Description

Technical Field

[0001] The present invention relates to a tendon-bone healing device. Background Art

[0002] In high-energy sports injuries (such as skiing and rugby collisions) or severe trauma, patients often experience simultaneous rotator cuff tendon tears and greater tuberosity fractures, or knee ligament ruptures and comminuted tibial plateau fractures. Complex joint injuries require simultaneous ligament repair and bone fixation. Traditional treatment requires staged use of different instruments, which not only prolongs surgery but also increases the risk of infection due to multiple procedures. Furthermore, the random nature of the bone breaks in these fractures further complicates instrument fixation.

[0003] In addition, such injuries require sutures to fix the tendons, which must be precisely passed through the tendons or muscle tissues. If the threading position is inappropriate, it may cause muscle cutting injuries. During the knotting process, if it is too tight, it can easily lead to tissue ischemia and necrosis, while if it is too loose, it will not be firmly fixed. In addition, the complicated threading and knotting steps prolong the operation time and increase the risk of infection. In addition, when the sutures pass through the muscles, they will cause mechanical damage to the muscle fibers. After surgery, the muscles will repeatedly contract, and the friction between the sutures and the tissues may cause a "cutting effect", causing local muscle ischemia and fibrosis, affecting the recovery of muscle function.

[0004] In addition, for bone fragments, traditional screws need to be repeatedly drilled and implanted, which is complicated to operate and can easily damage bone blood supply; when repairing ligaments, sutures and screw fixation need to be adjusted multiple times, affecting the accuracy of the surgery.

[0005] In view of this, it is necessary to improve the existing healing device to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a tendon-bone healing device to solve the problem that tendon rupture and fracture need to be treated separately.

[0007] To achieve the above-mentioned objectives, the present invention provides a tendon-bone healing device, which includes a pressure plate for fixing the tendon, a fixing member fixedly connected to the pressure plate, and a plurality of encircling claws arranged on the pressure plate and protruding toward the same side, the fixing member is used to be fixed to the bone, and the encircling claws include a first limiting rod extending from the pressure plate in a horizontal direction, a first connecting portion connected to a side of the first limiting rod away from the pressure plate, and a second limiting rod connected to an end of the first connecting portion away from the first limiting rod, the second limiting rod extends in a vertical direction, and the first connecting portion is arc-shaped and elastic.

[0008] As a further improvement of the present invention, the encircling claw also includes a second connecting part connected to the side of the second limiting rod away from the first connecting part, and a third limiting rod connected to the side of the second connecting part away from the second limiting rod, and the second connecting part is arc-shaped and elastic.

[0009] As a further improvement of the present invention, the fixing member extends in a horizontal direction, and the plurality of encircling claws are symmetrically arranged with the extending direction of the fixing member as an axis.

[0010] As a further improvement of the present invention, the embracing claws are made of memory alloy material.

[0011] As a further improvement of the present invention, a threaded hole is provided in the middle of the pressing plate, and the tendon-bone healing device further comprises a screw for passing through the threaded hole to fix the pressing plate to the tendon and the bone.

[0012] As a further improvement of the present invention, the pressing plate is provided with an auxiliary supporting portion which protrudes obliquely toward the fixing member.

[0013] As a further improvement of the present invention, the fixing member is provided with a plurality of bending notches on both sides along the horizontal direction, the plurality of bending notches are arranged along the extension direction of the fixing member, and the fixing member can be bent along the vertical direction.

[0014] As a further improvement of the present invention, the fixing member has at least three fixing methods: method 1: the fixing member is fixed on the bone surface in the horizontal direction; method 2: the fixing member is bent and inserted into the bone in the vertical direction; method 3: the fixing member is bent twice and then inserted into the bone in the horizontal direction.

[0015] As a further improvement of the present invention, the fixing member includes a fixing bar and claws bent in a vertical direction from both sides of the fixing bar in a horizontal direction, and the claws are used to clamp the bone from both sides.

[0016] As a further improvement of the present invention, the side of the pressure plate facing away from the embracing claws adopts a low-profile design.

[0017] The beneficial effects of the present invention are as follows: the tendon-bone healing device of the present invention realizes simultaneous fixation treatment of bones and tendons by providing an embracing claw and a pressure plate, and realizes fixation with bones by providing a fixing piece, providing a better fixation effect, and is simple to install, avoiding the use of two instruments in two surgeries; eliminating the need for suture operation, avoiding local muscle ischemia and fibrosis caused by sutures, and affecting muscle function recovery; the serration-free design of the embracing claw facilitates disassembly, avoiding the problem of secondary injury caused by disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the tendon-bone healing device of the present invention;

[0020] Figure 2 is a schematic top view of the tendon-bone healing device of the present invention;

[0021] Figure 3 is a schematic diagram of the front structure of the tendon-bone healing device of the present invention;

[0022] Figure 4 2 is a schematic structural diagram of the embracing claw of the tendon-bone healing device according to the first embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of the tendon-bone healing device of Example 2 of the present invention when the embracing claws are not installed;

[0024] Figure 6 1 is a schematic structural diagram of the tendon-bone healing device during installation according to the second embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of the tendon-bone healing device of the present invention when installed in the first manner;

[0026] Figure 8 is a schematic diagram of an embodiment of the tendon-bone healing device of the present invention when installed in the first manner;

[0027] Figure 9 yes Figure 8 A schematic diagram of the three-dimensional structure of the fixing member of the tendon-bone healing device;

[0028] Figure 10 is a schematic diagram of the tendon-bone healing device of the present invention when installed in the second manner;

[0029] Figure 11 This is a schematic diagram of the tendon-bone healing device of the present invention when installed using the third method. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figures 1 to 11 As shown, the tendon-bone healing device 100 of the present invention includes a pressure plate 1 for fixing the tendon, a fixing member 2 fixedly connected to the pressure plate 1, and a plurality of embracing claws 3 provided on the pressure plate 1 and protruding toward the same side.

[0034] According to different configurations of the embracing claws 3, the present invention provides at least the following two embodiments:

[0035] Example 1:

[0036] like Figures 1 to 4 As shown, in this embodiment, the encircling claw 3 includes a first limiting rod 31 extending from the pressure plate 1 in a horizontal direction, a first connecting portion 32 connected to the first limiting rod 31 away from the pressure plate 1, and a second limiting rod 33 connected to the first connecting portion 32 away from the first limiting rod 31. The second limiting rod 33 extends in a vertical direction, and the first connecting portion 32 is arc-shaped and elastic.

[0037] It should be noted that the first limiting rod 31 does not extend completely horizontally. Due to its elasticity, the first limiting rod 31 can have a certain angular deviation. In this embodiment, any deviation of the first limiting rod 31 from the horizontal direction within 20 degrees can be considered to extend horizontally. Similarly, any deviation of the second limiting rod 33 from the vertical direction within 20 degrees can also be considered to extend vertically. In actual use, to accommodate the affected bone and tendon, the first limiting rod 31 and the second limiting rod 33 may have a larger angular deviation.

[0038] In this embodiment, the embracing claw 3 is designed without serrations. Instead, the elastic first connecting portion 32 is provided to secure the implant in place using natural tightening force, particularly with the two ends of the second limiting rod 33 serving as fixing points. This allows for insertion at various angles and positions, eliminating any restrictions on installation locations.

[0039] Example 2:

[0040] like Figure 5 and Figure 6 As shown, this embodiment is a further improvement on the first embodiment. In addition to the structure of the first embodiment, the embracing claw 3 further comprises a second connecting portion 34 connected to the side of the second limiting rod 33 away from the first connecting portion 32, and a third limiting rod 35 connected to the side of the second connecting portion 34 away from the second limiting rod 33. The second connecting portion 34 is arc-shaped and elastic. In this embodiment, the abutments of the first connecting portion 32 and the second connecting portion 34 are both oriented or inclined toward the direction of the pressure plate 1.

[0041] The connection between the second limiting rod 33 and the first connecting portion 32, the second connecting portion 34, and the end of the third limiting rod 35 away from the second connecting portion 34 can all serve as fixing points. In this embodiment, the fixing point of the second connecting portion 34 is located on the side away from the pressure plate 1, while the other two fixing points are located on the side facing the pressure plate 1. This arrangement allows the encircling claw 3 to better utilize the tightening force for fixation. Before installation, the second limiting rod 33 and the third limiting rod 35 both extend in the vertical direction. After installation, the second limiting rod 33 and the third limiting rod 35 are bent at a certain angle to achieve self-compression.

[0042] In both embodiments, the embracing claws 3 are preferably made of memory alloy material so as to provide tightening force.

[0043] The encircling claws 3 are designed without serrations, and can be cut off from the pressing plate 1 during disassembly, and then each encircling claw 3 can be taken out independently, making disassembly convenient.

[0044] The size of the pressing plate 1 can be enlarged, thereby increasing the fixing range and fixing area of ​​the encircling claws 3.

[0045] The side of the pressure plate 1 facing away from the embracing claws 3 adopts a low-profile design. The low-profile design can reduce the pressure and friction of the pressure plate 1 on surrounding muscles, tendons and other soft tissues, reduce the risk of postoperative pain, inflammation and tissue adhesion, reduce irritation to soft tissues, and thus reduce the possibility of complications such as infection and foreign body reaction.

[0046] In one embodiment, the pressure plate 1 is made of memory alloy material, thereby actively achieving the function of pressurizing and tightening.

[0047] like Figure 2 As shown, in some other embodiments, the pressing plate 1 is made of injection molding materials such as PEEK or biodegradable materials such as silk protein, but these materials cannot realize the automatic pressurization and tightening function. Therefore, in these embodiments, a threaded hole 11 is opened in the middle of the pressing plate 1, and the tendon-bone healing device 100 also includes a screw for passing through the threaded hole 11 to fix the pressing plate 1 to the tendon and bone. The screw material is selected to be made of the same material as the pressing plate 1. The screw provides downward pressure, thereby providing downward pressure to the encircling claw 3, thereby promoting the encircling claw 3 to clamp.

[0048] The pressure plate 1 is provided with an auxiliary support portion 12 that protrudes obliquely toward the fixing member 2. In this embodiment, there are two auxiliary support portions 12, which are symmetrically arranged on both sides of the fixing member 2 in the horizontal direction. The outwardly protruding auxiliary support portions 12 can provide auxiliary downward pressure to compress the tendon.

[0049] The fixing member 2 is used to fix to the bone. In this embodiment, the fixing member 2 extends horizontally, and the plurality of embracing claws 3 are arranged symmetrically with the extension direction of the fixing member 2. More specifically, in this embodiment, the number of the embracing claws 3 is eight.

[0050] The fixing member 2 has multiple bending notches 21 on both sides along the horizontal direction. The multiple bending notches 21 are arranged along the extension direction of the fixing member 2. The fixing member 2 can be bent along the vertical direction, thereby providing multiple fixing methods.

[0051] The fixing member 2 has at least three fixing modes:

[0052] like Figures 7 to 9 As shown, method 1: the fixing member 2 is fixed to the bone surface in the horizontal direction; in this method, the fixing member 2 covers the bone surface and is fixed to the bone through its own structure or external fixing structure such as screws, thereby achieving fixation of the tendon-bone healing device 100 to the bone.

[0053] like Figure 8 and Figure 9 As shown, in one embodiment, the fixing member 2 includes a fixing bar 22 and claws 23 bent in the vertical direction from both sides of the fixing bar 22 in the horizontal direction. The claws 23 are used to clamp the bones from both sides, and the bending notch 21 is formed between two adjacent claws 23.

[0054] In another embodiment, the fixing member 2 is in the shape of a square tube. When method one is required for fixation, the bottom is cut open to obtain the fixing bar 22 and the claw 23. This fixing method has a larger contact area. Preferably, the fixing member 2 is made of a memory alloy. The memory alloy has a memory effect and will shrink, thereby always grasping the bone. The gripping effect is similar to that of the embracing claw 3.

[0055] like Figure 10 As shown, method 2: the fixing member 2 is bent and inserted into the bone in a vertical direction; in this method, the fixing member 2 is partially bent, and the end away from the pressure plate 1 is inserted into the bone in a vertical direction, thereby achieving fixation of the tendon-bone healing device 100 and the bone.

[0056] like Figure 11 As shown, in the third method, the fixing member 2 is bent twice and then inserted horizontally into the bone. In this method, the fixing member 2 is bent twice toward the side of the embracing claw 3, the first time toward the embracing claw 3 and the second time toward the horizontal direction. The side away from the pressing plate 1 continues to extend horizontally and protrude into the bone.

[0057] In this embodiment, by providing a bendable fixing member 2, different fixing methods can be selected according to different parts of the body and different conditions.

[0058] The tendon-bone healing device 100 of the present invention achieves simultaneous fixation treatment of bones and tendons by providing an embracing claw 3 and a pressure plate 1, and achieves fixation with the bones by providing a fixing part 2, providing a better fixation effect, and is easy to install, avoiding the use of two instruments in two surgeries; eliminating the need for suture operations, avoiding local muscle ischemia and fibrosis caused by sutures, and affecting muscle function recovery.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A tendon-bone healing device, characterized in that: The tendon-bone healing device includes a pressure plate for fixing the tendon, a fixing member fixedly connected to the pressure plate, and a plurality of embracing claws arranged on the pressure plate and protruding toward the same side. The fixing member is used to be fixed to the bone, and the embracing claws include a first limiting rod extending horizontally from the pressure plate, a first connecting portion connected to the first limiting rod away from the pressure plate, a second limiting rod connected to the first connecting portion away from one end of the first limiting rod, a second connecting portion connected to the second limiting rod away from the first connecting portion, and a second connecting portion connected to the second connecting portion away from the second limiting rod. Three limiting rods, the second limiting rod extends in the vertical direction, the first connecting part is arc-shaped and elastic, the second connecting part is arc-shaped and elastic, the fixing part has multiple bending notches on both sides along the horizontal direction, and the multiple bending notches are arranged along the extension direction of the fixing part. The fixing part can be bent along the vertical direction. The fixing part has at least three fixing methods, method one: the fixing part is fixed on the bone surface in the horizontal direction; method two: the fixing part is bent and inserted into the bone in the vertical direction; method three: the fixing part is inserted into the bone in the horizontal direction after being bent twice.

2. The tendon-bone healing device according to claim 1, characterized in that: The fixing member extends in a horizontal direction, and the plurality of embracing claws are symmetrically arranged with the extending direction of the fixing member as an axis.

3. The tendon-bone healing device according to claim 1, characterized in that: The embracing claws are made of memory alloy material.

4. The tendon-bone healing device according to claim 1, characterized in that: A threaded hole is provided in the middle of the pressing plate, and the tendon-bone healing device further comprises a screw which passes through the threaded hole to fix the pressing plate to the tendon and the bone.

5. The tendon-bone healing device according to claim 1, characterized in that: The pressing plate is provided with an auxiliary supporting portion which is inclined and protrudes toward the fixing member.

6. The tendon-bone healing device according to claim 1, characterized in that: The fixing member includes a fixing bar and claws bent along the vertical direction from both sides of the fixing bar along the horizontal direction, and the claws are used to clamp the bones from both sides.

7. The tendon-bone healing device according to claim 1, characterized in that: The side of the pressure plate facing away from the embracing claws adopts a low-profile design.

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