Tendon obtaining support

Abstract

The utility model relates to the technical field of medical instruments, in particular to a tendon obtaining supporting device which comprises a shell, the shell is of a slender body structure with a near end and a far end, the contour of the near end is smaller than that of the far end, the near end is firstly inserted into an incision during insertion, and a notch is formed in the top of the near end. A baffle for sealing the notch is rotationally arranged on the shell, can only rotate outside the shell, and can be pushed by the collector from the interior of the shell to open the notch. In the process that the shell is inserted into the incision and moves towards the deep position of the incision, the baffle and the limiting protruding block are matched with each other, the muscle at the top of the near end is prevented from entering the notch, and the probability that the muscle is injured at the notch when the supporting device is inserted into the incision is reduced; meanwhile, when the collector collects the tendon, the notch avoids the collector, the collector abuts against the baffle, the muscle on the upper portion of the notch is pushed through the baffle, and therefore the probability that the muscle on the upper portion of the notch is injured by the collector is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, especially to a tendon acquisition support. BACKGROUND

[0002] With the progress of medical technology in China, various new technology medical apparatus and instruments are continuously applied in the medical field. In the ACL or PCL reconstruction surgery process, generally, autologous tendons such as hamstring tendons and quadriceps tendons need to be taken. At present, doctors in tendon surgery rely on traditional surgical instruments and naked eye observation, or use some simple auxiliary tools, but these tools often cannot provide enough operation space and clear observation window. That is, there is a lack of equipment that can provide sufficient operation space and effective observation means for tendon cutting during tendon cutting.

[0003] The patent with the patent publication number CN115666407A provides a system and method for collecting tendons, which discloses a support that can provide sufficient operation space and effectively observe the cutting process. When in use, the incision is first reamed by a blunt dissector, then the support is inserted into the subcutaneous tissue along the incision, and the place where the tendon needs to be cut is supported by the support, so as to facilitate subsequent cutting and collection of the tendon.

[0004] In order to facilitate the flexibility of the support and provide a path for the collector to move forward, and to maximize the distance of the tendon that can be collected by the collector, a notch is formed on one end of the support near the nose.

[0005] However, since the cut muscle has a certain flexibility, when the support is inserted into the subcutaneous tissue along the incision, the muscle may enter the inside of the support from the notch. As the support continues to be inserted into the incision, the muscle entering the notch is easily damaged by the support. At the same time, when the collector reaches the deep part, the top of the collector is easily inserted into the muscle at the top of the support, causing unnecessary damage to the muscle. UTILITY MODEL CONTENTS

[0006] In order to reduce the probability of muscle damage at the notch when the support is inserted into the incision, and also reduce the damage of the collector to the muscle at the top of the support, the utility model provides a tendon acquisition support.

[0007] The utility model provides a tendon acquisition support, which adopts the following technical scheme:

[0008] A tendon acquisition support device comprises a shell, which is an elongated body structure with a proximal end and a distal end, the proximal end has a smaller profile than the distal end and is inserted into an incision first when inserted, a notch is formed on the top of the proximal end, a baffle is rotatably arranged on the shell to close the notch, the baffle can only rotate outside the shell, and the baffle can be pushed by a collector from inside the shell to open the notch.

[0009] By adopting the above technical scheme, when the shell is inserted into the incision and moves to the deep part of the incision, the proximal end top muscle is prevented from entering the notch by the cooperation of the baffle and the limiting block, thereby reducing the probability of muscle damage at the notch when the support device is inserted into the incision; meanwhile, when the collector collects the tendon, the notch avoids the collector, the collector abuts against the baffle and pushes the muscle on the upper part of the notch through the baffle, thereby reducing the probability of muscle damage on the upper part of the notch by the collector.

[0010] Further, the side wall of the baffle is inclined, the side wall of the baffle is inclined towards the center of the baffle, and the end face area of the side wall of the baffle away from the inside of the shell is larger than the end face area of the side wall of the baffle close to the inside of the shell, the baffle and the side wall of the notch are mutually clamped and cooperated to prevent the baffle from entering the inside of the shell.

[0011] By adopting the above technical scheme, the side wall of the baffle is inclined, and the end face area of the side wall of the baffle away from the inside of the shell is larger than the end face area of the side wall of the baffle close to the inside of the shell, so as to prevent the baffle from entering the inside of the shell when the baffle and the notch are clamped and cooperated, and the end face area of the side wall of the baffle away from the inside of the shell is larger, thereby reducing the probability of muscle clamping between the baffle and the notch gap when the baffle closes the notch.

[0012] Further, a limiting block is arranged in the inside of the shell to prevent the baffle from entering the inside of the shell, and the limiting block and the collector are mutually avoided.

[0013] By adopting the above technical scheme, the limiting block fixedly installed in the inside of the shell abuts against the end face of the baffle close to the inside of the shell, so as to prevent the baffle from moving to the inside of the shell, and the limiting block and the side wall of the notch are cooperated, thereby improving the blocking effect of the baffle.

[0014] Further, the proximal end top is an inclined structure, the notch is formed on the inclined structure, and the top of the baffle is rotatably arranged on the top of the notch.

[0015] By adopting the technical scheme, when the collector pushes the baffle to rotate from the inside of the shell, the bottom of the baffle rotates away from the inside of the shell, and then the muscle close to the baffle is pushed away from the notch, and when the collector moves back, the muscle pushes the baffle to close the notch, and since the rotation shaft of the baffle is located at the top of the notch, the probability of the muscle being stuck in the gap between the baffle and the notch is reduced.

[0016] Further, a plurality of air holes are formed on the baffle to facilitate the communication between the outside of the proximal end and the inside of the shell.

[0017] By adopting the technical scheme, when the baffle closes the notch, the air hole timely discharges the gas in the incision into the shell and finally discharges it out of the body, so as to facilitate the insertion of the shell into the incision.

[0018] Further, a nose portion is arranged on the side of the proximal end away from the distal end to facilitate the reaming of the incision, and the inside of the nose portion is hollow.

[0019] By adopting the technical scheme, the hollow nose portion facilitates the reaming of the incision, so as to facilitate the insertion of the shell into the shell.

[0020] Further, a limiting convex ring is arranged on the distal end to prevent the shell from continuing to be inserted into the incision.

[0021] By adopting the technical scheme, when the shell is inserted into the incision, the limiting convex ring abuts against the outer skin of the incision, so as to prevent the shell from continuing to be inserted into the incision, and finally achieve the effect of limiting the depth of the shell inserted into the incision.

[0022] Further, a collection port for collecting the tendon is formed on the bottom of the shell, and the collection port is in communication with the distal end.

[0023] By adopting the technical scheme, the collector slides in the shell along the length direction of the collection port and cuts and collects the tendon.

[0024] Further, the shell and the baffle are made of transparent material.

[0025] By adopting the technical scheme, the shell and the baffle made of transparent material facilitate the observation of the inside of the shell, so that the doctor can clearly see the situation of the operation area.

[0026] In summary, the utility model has at least one of the following beneficial technical effects:

[0027] The probability of muscle injury in the notch when the support is inserted into the incision is reduced by the cooperation of the baffle and the limiting protrusion and the prevention of the proximal top muscle from entering the notch during the insertion of the shell into the incision; meanwhile, the notch avoids the collector when the collector collects the tendon, the collector abuts against the baffle and pushes the muscle on the upper part of the notch through the baffle, thereby reducing the probability of muscle injury on the upper part of the notch. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the support structure schematic view of the utility model, wherein the state of the baffle closing the notch is shown;

[0029] Figure 2 is the bottom view of the utility model, wherein the baffle is not shown;

[0030] Figure 3 is the support structure schematic view of the utility model, wherein the state of the baffle being pushed away from the notch is shown.

[0031] Fig. 1 is a shell; 11, proximal end; 111, notch; 12, distal end; 13, nose; 14, limiting protruding ring; 15, collection port; 2, baffle; 21, air hole; 3, limiting protrusion. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings Figures 1-3 The utility model is further explained in detail.

[0033] The utility model embodiment discloses a tendon acquisition support.

[0034] Refer to Figure 1 A tendon acquisition support, including shell 1, shell 1 is the slender body structure with proximal end 11 and distal end 12, and the proximal end 11 profile is less than the distal end 12 profile, and the proximal end 11 is inserted into the incision first when inserting, and the proximal end 11 top is provided with the notch 111, and the shell 1 is provided with the baffle 2 that closes the notch 111 and rotates, and the baffle 2 can only rotate outside shell 1, and the baffle 2 can be pushed by the collector from inside shell 1 and open the notch 111.

[0035] Refer to Figure 1 And Figure 2 Shell 1 is the slender body structure with proximal end 11 and distal end 12, wherein in order to facilitate the shell 1 to be inserted into the incision better, the proximal end 11 profile is less than the distal end 12 profile, and the proximal end 11 is inserted into the incision first when inserting, and the muscle in the incision is supported, so as to facilitate the collection of the tendon.

[0036] Refer to Figure 1 And Figure 2, in order to facilitate the shell 1 better inserted into the incision, the proximal end 11 away from the distal end 12 side is provided with a nose 13, nose 13 front end of the arc structure, the lower surface of the nose 13 and the lower surface of the shell 1 flush with each other, the nose 13 top end and the shell 1 connection is inclined, so as to facilitate the shell 1 to the incision reaming; At the same time the nose 13 is hollow, so as to facilitate the blunt dissection for locking.

[0037] Referring to Figure 1 , the distal end 12 is fixedly installed with limiting convex ring 14 for preventing shell 1 continue to insert into the incision, when the shell 1 is inserted into the incision, through the limiting convex ring 14 and the skin on the outside of the incision, so as to prevent the shell 1 continue to insert into the incision, ultimately achieve the effect of limiting the depth of the shell 1 inserted into the incision.

[0038] Referring to Figure 1 and Figure 2 , the bottom of the shell 1 is provided with a collection port 15 for collecting tendon, the collection port 15 and the inside of the shell 1 are communicated with each other, the length direction of the collection port 15 is parallel to the length direction of the shell 1, one end of the collection port 15 is communicated with the distal end 12, so as to facilitate the collector to slide along the collection port 15 and cut the tendon.

[0039] Referring to Figure 1 and Figure 3 , the top end of the nose 13 and the inclined connection of the shell 1 are provided with a notch 111, the shell 1 is rotatably installed with a baffle 2 for closing the notch 111, the top of the baffle 2 is rotatably installed on the top of the notch 111, so that when the collector pushes the baffle 2 to rotate from the inside of the shell 1, the bottom of the baffle 2 rotates away from the inside of the shell 1, so as to facilitate the muscle which is close to the baffle 2 to move away from the notch 111, and when the collector moves back, the muscle pushes the baffle 2 to close the notch 111, because the rotating shaft of the baffle 2 is located on the top of the notch 111, so as to reduce the probability of the muscle being clamped in the gap between the baffle 2 and the notch 111.

[0040] Referring to Figure 1 and Figure 3 , the side wall of the baffle 2 is inclined, the side wall of the baffle 2 is inclined along the center of the baffle 2, and the end face area of the end of the baffle 2 away from the inside of the shell 1 is greater than the end face area of the side of the baffle 2 close to the inside of the shell 1, the two end faces of the baffle 2 close to the rotating shaft are flush with each other; The inclined side wall of the baffle 2 facilitates the baffle 2 and the notch 111 to be tightly matched, so as to facilitate the notch 111 and the baffle 2 to cooperate and prevent the baffle 2 from entering the inside of the shell 1, and because the end face area of the side of the baffle 2 away from the inside of the shell 1 is larger, the probability of the muscle being clamped between the baffle 2 and the notch 111 when the baffle 2 closes the notch 111 is reduced.

[0041] Referring toFigure 1 and Figure 3 The limiting protrusion 3 is fixedly installed on the inner side wall of the shell 1 and is used to prevent the baffle 2 from entering the inside of the shell 1; when the shell 1 is inserted into the incision and moves to the deep part of the incision, the muscle on the top of the proximal end 11 abuts against the baffle 2, the baffle 2 is blocked by the limiting protrusion 3 and the side wall of the notch 111, so that the baffle 2 closes the notch 111 and cannot enter the inside of the shell 1, thereby preventing the muscle from entering the notch 111 and reducing the probability of muscle injury at the notch 111 when the support is inserted into the incision.

[0042] Referring to Figure 1 and Figure 3 When the shell 1 is inserted into the designated position, the collector is moved along the collection port 15, so as to cut the tendon; when the collector reaches the notch 111, because the height of the collector is greater than the height of the nose portion 13, the top of the collector abuts against the baffle 2 and slides the baffle 2 away from the notch 111, so as to maximize the distance of the tendon that can be collected by the collector, and the muscle on the upper part of the notch 111 is pushed by the baffle 2, thereby reducing the probability of muscle injury on the upper part of the notch 111 by the collector.

[0043] Referring to Figure 1 A plurality of air holes 21 are formed in the baffle 2, so as to facilitate the communication and gas exchange between the outside of the proximal end 11 and the inside of the shell 1; when the shell 1 is inserted into the incision, because the muscle abuts against the baffle 2 on the notch 111, the notch 111 is blocked, the gas in the incision is discharged into the shell 1 through the air holes 21 and finally discharged out of the body through the air holes 21, so as to facilitate the insertion of the shell 1 into the incision.

[0044] Referring to Figure 1 The shell 1 and the baffle 2 are made of transparent materials, so that the doctor can clearly see the situation of the operation area.

[0045] The working principle of the embodiment of the utility model is as follows:

[0046] When the shell 1 is inserted into the incision and moves to the deep part of the incision, the muscle on the top of the proximal end 11 abuts against the baffle 2, the baffle 2 is blocked by the limiting protrusion 3 and the side wall of the notch 111, so that the baffle 2 closes the notch 111 and cannot enter the inside of the shell 1, thereby preventing the muscle from entering the notch 111 and reducing the probability of muscle injury at the notch 111 when the support is inserted into the incision; at the same time, when the collector collects the tendon, the notch 111 avoids the collector, the collector abuts against the baffle 2 and pushes the muscle on the upper part of the notch 111 through the baffle 2, thereby reducing the probability of muscle injury on the upper part of the notch 111 by the collector.

[0047] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tendon retrieval support, characterized in that: Includes a housing (1), which is an elongated body structure with a proximal end (11) and a distal end (12). The proximal end (11) has a smaller profile than the distal end (12), and the proximal end (11) is inserted into the cut first during insertion. A notch (111) is provided on the top of the proximal end (11). A baffle (2) is rotatably provided on the housing (1) to close the notch (111). The baffle (2) can only rotate outside the housing (1). The baffle (2) can be pushed from inside the housing (1) by the collector and open the notch (111).

2. The tendon acquisition support device according to claim 1, characterized in that: The side wall of the baffle (2) is inclined. The side wall of the baffle (2) is inclined near the center of the baffle (2) and the end face area of ​​the baffle (2) away from the inside of the shell (1) is greater than the end face area of ​​the baffle (2) near the inside of the shell (1). The baffle (2) and the side wall of the notch (111) are engaged with each other and prevent the baffle (2) from entering the inside of the shell (1).

3. The tendon acquisition support device according to claim 2, characterized in that: The housing (1) is provided with a limiting protrusion (3) to prevent the baffle (2) from entering the housing (1), and the limiting protrusion (3) and the collector are mutually offset.

4. The tendon acquisition support device according to claim 3, characterized in that: The top of the proximal end (11) is inclined, the notch (111) is opened on the inclined structure, and the top of the baffle (2) is rotatably set on the top of the notch (111).

5. The tendon acquisition support device according to claim 1, characterized in that: The baffle (2) has multiple sets of ventilation holes (21) to facilitate communication between the outside of the proximal end (11) and the inside of the shell (1).

6. The tendon acquisition support device according to claim 1, characterized in that: The proximal end (11) is provided with a nose (13) on the side away from the distal end (12) to facilitate enlarging the incision. The nose (13) is hollow inside.

7. The tendon acquisition support device according to claim 1, characterized in that: The distal end (12) is provided with a limiting protrusion (14) to prevent the housing (1) from continuing to be inserted into the cut.

8. A tendon acquisition support device according to claim 7, characterized in that: The bottom of the housing (1) is provided with a collection port (15) for collecting tendons, and the collection port (15) is connected to the distal end (12).

9. A tendon acquisition support device according to claim 1, characterized in that: Both the shell (1) and the baffle (2) are made of transparent material.

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