A braided fixation device for allogeneic tendon production

Abstract

The utility model discloses a braiding and fixing device used in the production of allogeneic tendons, including an upper beam arm, on which a rotating rod is vertically installed, and the rotating rod is driven to rotate by a rotating drive assembly; a lower beam arm is arranged below the upper beam arm, and the lower beam arm is connected to the upper beam arm through a connecting arm, and a clamping component for clamping the allogeneic tendon is correspondingly installed on the lower end of the rotating rod and the lower beam arm; at least one wire wheel is arranged below the lower beam arm, and at least one wire roller is slidably and adjustable on the lower beam arm, and the braided wire drawn from the wire wheel bypasses the corresponding wire roller and is connected to the allogeneic tendon fixed by the clamping component. The utility model can solve the problems that the allogeneic tendon currently absorbs a large amount of liquid and swells after being soaked in liquid, and the process cycle for removing the liquid in the tendon is long and the production cost is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for production of medical instruments, in particular to a braiding and fixing device used in the production of allogeneic tendons. Background Art

[0002] With the increasing incidence of tendon and ligament injuries, allogeneic tendon transplantation and reconstruction has been increasingly used to restore the motor function and stability of the injured part. Allogeneic tendons have low antigenicity and a wide source. After transplantation, they can achieve similar therapeutic effects as autologous tendons, but they do not have the disadvantages of artificial tendons. Therefore, research on allogeneic tendons has become increasingly popular in recent years. Since fresh allogeneic tendon transplantation is prone to obvious inflammatory reactions and rejection reactions, it is necessary to use chemical reagents to soak for decellularization, degreasing, and cryopreservation to remove the immunogenicity of allogeneic tendons and minimize damage to allogeneic tendons. However, allogeneic tendons are prone to swelling after being soaked in liquid, especially the fluffy end of the allogeneic tendon (i.e., the end connected to the muscle tissue). The swollen tendon structure becomes loose and absorbs a large amount of liquid, such as decellularization reagents, degreasing reagents, virus inactivation reagents, etc. These reagents should be removed. Since loose tendons are easy to lock liquids, removing these liquids requires a lot of water washing, resulting in a long process cycle, increased production costs, and may also introduce new risks. Utility Model Content

[0003] The utility model provides a braiding fixing device for allogeneic tendon production, which can solve the problems that the existing allogeneic tendon absorbs a large amount of liquid and swells after being soaked in liquid, and the process cycle for removing the liquid in the tendon is long and the production cost is increased.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a braiding and fixing device for use in the production of allogeneic tendons, comprising an upper beam arm, a rotating rod is vertically installed on the upper beam arm, and the rotating rod is driven to rotate by a rotating drive assembly; a lower beam arm is arranged below the upper beam arm, and the lower beam arm is connected to the upper beam arm by a connecting arm, and a clamping component for clamping the allogeneic tendon is correspondingly installed on the lower end of the rotating rod and the lower beam arm; at least one wire wheel is arranged below the lower beam arm, and at least one wire roller is slidably and adjustably arranged on the lower beam arm, and the braided wire led out from the wire wheel bypasses the corresponding wire roller and is connected to the allogeneic tendon fixed by the clamping component, and the allogeneic tendon can be straightened and clamped by setting the rotating rod and the clamping component, and the braided wire can be fixed on the allogeneic tendon, and when the allogeneic tendon rotates with the rotating rod, the wire roller can continuously and evenly wrap the braided wire on the wire wheel around the allogeneic tendon.

[0005] Preferably, the two wire wheels are arranged side by side, the number of the wire rollers is also two and they correspond one to one to the two wire wheels, the wire rollers are respectively arranged on both sides of the clamping part on the lower beam arm, the braided wires on the two wire wheels can be wound around the allogeneic tendon at the same time, and the winding is more uniform and faster.

[0006] Preferably, the braided wire is a surgical wire, which has high strength and good winding performance.

[0007] Preferably, the rotation drive assembly includes driving cams evenly arranged on the outer circumferential surface of the rotating rod and a driving rod laterally arranged on one side of the rotating rod, the driving rod includes a rod body, a plurality of movable cams are evenly arranged on the side of the rod body facing the rotating rod, the side of the movable cams opposite to the rotation direction of the rotating rod is connected to the rod body through a rotating shaft, the side of the movable cams facing the rod body is connected to the rod body through a first elastic member, a pulling member is provided on one end of the driving rod facing the rotation direction of the rotating rod, and the other end of the driving rod is connected to the upper beam arm through a second elastic member. The rotating rod can be intermittently rotated by repeated movement of the driving rod, which is conducive to observing the winding effect of the allogeneic tendon while rotating.

[0008] Preferably, the pulling component is a pull rope, and a guide roller is provided on the upper beam arm at a position connected to the connecting arm. The pull rope bypasses the guide roller and extends to the connecting arm and is connected to one end of the pressing rocker arm. The other end of the pressing rocker arm is rotatably connected to the connecting arm, so that the pulling of the driving rod can be guided to a position where the operation is more convenient.

[0009] Preferably, a stop block is also provided on the side of the rotating rod, the first end of the stop block is rotatably connected to the upper beam arm and is installed with a coil spring, the second end of the stop block faces the same direction as the rotation direction of the rotating rod, and when the rotating rod retracts, the stop block presses against the corresponding driving convex tooth, which can prevent the rotating rod from being pushed by the driving rod to rotate and then retract.

[0010] Preferably, a handle is installed on the connecting arm at a position corresponding to the pressing rocker arm, and the handle can be grasped by the palm when pressing the pressing rocker arm, thereby improving convenience and comfort of use.

[0011] Preferably, the rotary drive assembly includes a motor and a gearbox connected to the motor, and the output shaft of the gearbox drives the rotary rod to rotate. The motor and the gearbox can also drive the rotary rod to rotate slowly and intermittently.

[0012] Preferably, a wire wheel frame is transversely mounted on the lower end of the connecting arm, and the wire wheel is mounted on the wire wheel frame. The wire wheel can be stably mounted through the wire wheel frame so that the wire wheel can rotate freely.

[0013] Preferably, the connecting arm comprises an upper arm and a lower arm, the upper arm and the lower arm are telescopically matched, and the upper arm and the lower arm are provided with a telescopic control knob, and the length of the connecting arm can be adjusted by the telescopic control knob, thereby adjusting the distance between the two clamping parts to accommodate allogeneic tendons of different lengths.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] A rotatable rotating rod is provided to rotate the allogeneic tendon. At the same time, the allogeneic tendon can be woven in a winding manner by setting a wire wheel and a wire roller in the lead direction. The whole process is simple and convenient, and the allogeneic tendon can be quickly woven and fixed in production, reducing manpower and time costs, and avoiding expansion of the allogeneic tendon during subsequent liquid immersion process, which affects the structure and mechanical properties of the tendon. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main structural diagram of the utility model;

[0017] Figure 2 The present invention is a structure of an embodiment of a rotary drive assembly of the present invention.

[0018] Reference numerals:

[0019] 1. Lower beam arm, 11. Handle, 12. Push rocker arm, 13. Wire wheel frame, 14. Telescopic control knob, 15. Back-stopping top block, 16. Coil spring, 17. Pull rope, 2. Upper beam arm, 3. Connecting arm, 4. Wire wheel, 5. Wire roller, 6. Clamping component, 7. Rotating rod, 71. Driving cam, 8. Driving rod, 81. Rod body, 82. First elastic member, 83. Movable cam, 84. Rotating shaft, 9. Second elastic member, 10. Guide roller, A. Allogeneic tendon, B. Braided wire. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model aims to solve the problem that the existing allogeneic tendon absorbs a large amount of liquid and swells after being soaked in liquid, and the process of removing the liquid in the tendon takes a long time and increases the production cost. Figure 1-2As shown, the following technical solution is provided: a braiding and fixing device for the production of allogeneic tendons, comprising an upper beam arm 2, on which a rotating rod 7 is vertically installed, and the rotating rod 7 is driven to rotate by a rotating drive assembly; a lower beam arm 1, which is arranged below the upper beam arm 2, and the lower beam arm 1 is connected to the upper beam arm 2 by a connecting arm 3, and a clamping component 6 for clamping the allogeneic tendon A is correspondingly installed on the lower end of the rotating rod 7 and the lower beam arm 1; at least one wire wheel 4 is arranged on the lower beam arm 1 At the bottom, at least one wire roller 5 is slidably and adjustably provided on the lower beam arm 1. The braided wire B led out from the wire wheel 4 passes around the corresponding wire roller 5 and is connected to the allogeneic tendon A fixed by the clamping component 6. By setting the rotating rod 7 and the clamping component 6, the allogeneic tendon A can be straightened and clamped, and the braided wire B can be fixed on the allogeneic tendon A. When the allogeneic tendon A rotates with the rotating rod 7, the wire roller 5 can continuously and evenly wind the braided wire B on the wire wheel 4 around the allogeneic tendon A to achieve weaving fixation.

[0022] Specifically, the upper beam arm 2 and the lower beam arm 1 can be arranged in parallel or in a cross-arrangement, and the connecting arm 3 can be arranged vertically or obliquely. The function of the connecting arm 3 is to connect the upper beam arm 2 and the lower beam arm 1 into one. The rotating rod 7 and the upper beam arm 2 can be connected by a bearing so that the rotating rod 7 can rotate stably. The clamping component 6 is installed at the lower end of the rotating rod 7 and is fixedly connected to the rotating rod 7. An upper and lower adjustable structure can also be provided to adjust the distance between the two clamping components 6.

[0023] The clamping component 6 on the lower beam arm 1 can be rotatably connected to the lower beam arm 1, such as the clamping component 6 is connected to the lower beam arm 1 through a bearing, so that when the allogeneic tendon A is driven by the rotating rod 7 to rotate, the clamping component 6 at the lower end can also rotate together.

[0024] The clamping member 6 can be a conventional clamp, or can be fixed by a tightening belt or a connecting rod.

[0025] In this embodiment, the wire wheels 4 are arranged in two parallel positions (not shown in the figure), the wire rollers 5 are also two and correspond to the two wire wheels 4 one by one, and the wire rollers 5 are respectively arranged on both sides of the clamping part 6 on the lower beam arm 1. The braided wires B on the two wire wheels 4 can be wound around the allogeneic tendon A at the same time, and the winding is more uniform and fast. The braided wire B can be a surgical wire, which has high strength, good winding performance, and is not easy to break.

[0026] The rotary drive assembly can adopt a variety of structures, which can be selected according to needs. It can adopt an electric structure or a manual structure, such as Figure 1-2 As shown, a specific embodiment of the rotary drive assembly is shown, specifically:

[0027] The rotation drive assembly includes driving convex teeth 71 evenly arranged on the outer circumferential surface of the rotating rod 7 and a driving rod 8 laterally arranged on one side of the rotating rod 7. The driving rod 8 includes a rod body 81. A plurality of movable convex teeth 83 are evenly arranged on the side of the rod body 81 facing the rotating rod 7. The side of the movable convex teeth 83 opposite to the rotation direction of the rotating rod 7 is connected to the rod body 81 through a rotating shaft 84. The side of the movable convex teeth 83 facing the rod body 81 is connected to the rod body 81 through a first elastic member 82. A pulling component is provided on the end of the driving rod 8 facing the rotation direction of the rotating rod 7. The other end of the driving rod 8 is connected to the upper beam arm 2 through a second elastic member 9. When the driving rod 8 is pulled, the movable protruding tooth 83 is in a pop-up state under the action of the first elastic member 82, and the movable protruding tooth 83 contacts the driving protruding tooth 71 on the rotating rod 7 and will not retract into the rod body 81, so the rotating rod 7 can be pushed to rotate, and the rotation angle of the rotating rod 7 can be determined according to the moving distance of the driving rod 8. When the driving rod 8 is pulled back under the action of the second elastic member 9, the back side of the movable protruding tooth 83 contacts the driving protruding tooth 71, and the movable protruding tooth 83 will be pushed to rotate around the rotating shaft 84 and retract into the rod body 81, and will not drive the driving protruding tooth 71 to move, so it will not drive the rotating rod 7 to rotate in the opposite direction. In this way, the rotating rod 7 can be repeatedly rotated intermittently, which is conducive to observing the winding effect of the allogeneic tendon A while rotating.

[0028] In this embodiment, the pulling component is a pull rope 17. A guide roller 10 is provided at the position of the upper beam arm 2 connected to the connecting arm 3. The pull rope 17 bypasses the guide roller 10 and extends to the connecting arm 3 to be connected to one end of the pressing rocker arm 12. The other end of the pressing rocker arm 12 is rotatably connected to the connecting arm 3, so that the pulling of the driving rod 8 can be guided to a position where the operation is more convenient. Each time the rocker arm 12 is pressed, the pull rope 17 can be pulled down a certain distance. The guide roller 10 can guide the pull rope 17 to change its direction. A handle 11 can be installed at a position corresponding to the pressing rocker arm 12 on the connecting arm 3. When pressing the pressing rocker arm 12, the handle 11 can be grasped by the palm of the hand to improve the convenience and comfort of use.

[0029] At the same time, in this embodiment, since the allogeneic tendon A will encounter resistance when it is rotated and entangled, in order to prevent the rotating rod 7 from automatically retreating after being driven to rotate, a stop block 15 is also provided on the side of the rotating rod 7. The first end of the stop block 15 is rotatably connected to the upper beam arm 2 and is equipped with a coil spring 16. The second end of the stop block 15 faces the same direction as the rotation direction of the rotating rod 7. When the rotating rod 7 retreats, the stop block 15 presses against the corresponding driving convex tooth 71, which can prevent the rotating rod 7 from being pushed by the driving rod 8 to rotate and then retreat.

[0030] In this embodiment, as another specific implementation mode of the rotation drive component, the rotation drive component includes a motor and a gearbox connected to the motor (not shown in the figure), the output shaft of the gearbox drives the rotating rod 7 to rotate, and the motor and the gearbox can also drive the rotating rod 7 to rotate slowly and intermittently. The motor and the gearbox can be installed on the upper beam arm 2. The motor can be a servo motor or a stepper motor, etc., which can be remotely controlled or controlled by a control panel or control buttons. It is also relatively convenient to operate. Since the motor often has a self-locking function, the rotating rod 7 does not automatically retract.

[0031] In order to facilitate the installation of the wire wheel 4, a wire wheel frame 13 is horizontally installed at the lower end of the connecting arm 3, and the wire wheel 4 is installed on the wire wheel frame 13. The wire wheel 4 can be stably installed through the wire wheel frame 13, so that the wire wheel 4 can rotate freely.

[0032] In this embodiment, if Figure 1 As shown, the connecting arm 3 includes an upper arm and a lower arm, and the upper arm and the lower arm are telescopically matched, and the upper arm and the lower arm are provided with a telescopic control knob 14. The length of the connecting arm 3 can be adjusted by the telescopic control knob 14, thereby adjusting the distance between the two clamping parts 6 to adapt to allogeneic tendons A of different lengths.

[0033] The specific operation steps in this embodiment include the following:

[0034] S1. Pre-treatment:

[0035] Before using the device, the allogeneic tendon A needs to be pre-processed, that is, the muscle tissue and fat tissue on the surface of the allogeneic tendon A are removed using tools, and the appearance of the allogeneic tendon is trimmed to make the allogeneic tendon A meet the transplantation requirements;

[0036] S2, fixed:

[0037] Fix one end of the pre-treated allogeneic tendon A to the clamping component 6 at the upper end, straighten the allogeneic tendon, determine its length, and adjust the control knob 14 or the height of the clamping component 6 so that the other end of the allogeneic tendon can be fixed flatly on the clamping component 6 at the lower end;

[0038] S3, Braided wire installation:

[0039] Two wire wheels 4 are fixed on the wire wheel frame 13, a braided wire B of one wire wheel 4 passes through the corresponding wire roller 5 and is pulled to the upper end of the allogeneic tendon A, a braided wire B of the other wire wheel 4 passes through another corresponding wire roller 5 and is also pulled to the upper end of the allogeneic tendon A, and the two braided wires B are knotted and fixed on the allogeneic tendon A. The positions of the two wire rollers 5 on the lower beam arm 2 can be moved to select the braiding density;

[0040] S4, weaving:

[0041] The operator holds the handle 11 and presses the pressing rocker arm 12 with four fingers to rotate the allogeneic tendon A. The braided wire B is braided on the allogeneic tendon A until it is braided to the lower end of the allogeneic tendon A. The operator stops pressing the pressing rocker arm 12, cuts the braided wire B, ties a knot at the end to fix it, then unties the two clamping parts 6, and removes the braided allogeneic tendon A.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, in the present invention, the descriptions of "primary", "secondary", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "primary" or "secondary" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A braided fixation device for use in the production of allogeneic tendons, characterized in that: include: An upper beam arm (2), a rotating rod (7) being vertically mounted on the upper beam arm (2), and the rotating rod (7) being driven to rotate by a rotating drive assembly; The lower beam arm (1) is arranged below the upper beam arm (2), the lower beam arm (1) and the upper beam arm (2) are connected via a connecting arm (3), and a clamping component (6) for clamping the allogeneic tendon (A) is correspondingly installed on the lower end of the rotating rod (7) and the lower beam arm (1); At least one wire wheel (4) is arranged below the lower beam arm (1); at least one wire roller (5) is slidably and adjustably arranged on the lower beam arm (1); the braided wire (B) drawn out from the wire wheel (4) passes around the corresponding wire roller (5) and is connected to the allogeneic tendon (A) fixed by the clamping component (6).

2. The braided fixation device for allogeneic tendon production according to claim 1, characterized in that: The wire wheels (4) are two and arranged side by side, and the wire rollers (5) are also two and correspond one to one with the two wire wheels (4). The wire rollers (5) are respectively arranged on both sides of the clamping component (6) on the lower beam arm (1).

3. The braided fixation device for allogeneic tendon production according to claim 1 or 2, characterized in that: The braided wire (B) is a surgical wire.

4. The braided fixation device for allogeneic tendon production according to claim 1, characterized in that: The rotary drive assembly comprises a driving convex tooth (71) evenly arranged on the outer circumferential surface of the rotating rod (7) and a driving rod (8) laterally arranged on one side of the rotating rod (7); the driving rod (8) comprises a rod body (81); a plurality of movable convex teeth (83) are evenly arranged on the side of the rod body (81) facing the rotating rod (7); the side of the movable convex tooth (83) opposite to the rotation direction of the rotating rod (7) is connected to the rod body (81) via a rotating shaft (84); the side of the movable convex tooth (83) facing the rod body (81) is connected to the rod body (81) via a first elastic member (82); a pulling member is arranged on one end of the driving rod (8) facing the rotation direction of the rotating rod (7); and the other end of the driving rod (8) is connected to the upper beam arm (2) via a second elastic member (9).

5. The braided fixation device for allogeneic tendon production according to claim 4, characterized in that: The pulling component is a pull rope (17), and a guide roller (10) is provided at a position on the upper beam arm (2) connected to the connecting arm (3). The pull rope (17) bypasses the guide roller (10) and extends to the connecting arm (3) to be connected to one end of the pressing rocker arm (12), and the other end of the pressing rocker arm (12) is rotatably connected to the connecting arm (3).

6. The braided fixation device for allogeneic tendon production according to claim 4, characterized in that: A stop block (15) is also provided on the side of the rotating rod (7); a first end of the stop block (15) is rotatably connected to the upper beam arm (2) and is provided with a coil spring (16); a second end of the stop block (15) faces the same direction as the rotation direction of the rotating rod (7); when the rotating rod (7) retracts, the stop block (15) presses against the corresponding driving convex tooth (71).

7. The braided fixation device for allogeneic tendon production according to claim 5, characterized in that: A handle (11) is installed on the connecting arm (3) at a position corresponding to the pressing rocker arm (12).

8. The braided fixation device for allogeneic tendon production according to claim 1, characterized in that: The rotary drive assembly comprises a motor and a gearbox connected to the motor, and the output shaft of the gearbox drives the rotary rod (7) to rotate.

9. The braided fixation device for allogeneic tendon production according to claim 1, characterized in that: A wire wheel frame (13) is transversely mounted on the lower end of the connecting arm (3), and the wire wheel (4) is mounted on the wire wheel frame (13).

10. The braided fixation device for allogeneic tendon production according to claim 1, characterized in that: The connecting arm (3) comprises an upper arm and a lower arm, the upper arm and the lower arm are telescopically matched, and the upper arm and the lower arm are provided with a telescopic control knob (14).

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