Artificial ligament trimmer

Abstract

The utility model discloses an artificial ligament trimmer which comprises a cylinder, the left end of the cylinder is provided with a traction channel, the upper end, the lower end and the left end of the traction channel all penetrate through the cylinder, the right end of the cylinder is fixedly connected with a T-shaped grip, the upper end and the lower end of the side surface of the cylinder are both fixedly connected with pressing pieces, and a push rod is arranged in the cylinder. A Y-shaped blade and an annular blade are fixedly connected to the left end of the push rod and the inner wall of the traction channel respectively, a spring is fixedly connected between the push rod and the right inner wall of the cylinder, the right end of the push rod penetrates through the spring and penetrates through the right surface of the cylinder, a button is arranged at the right end of the push rod, and the left end of the button penetrates into the cylinder. Through the structure, the part, needing to be cut, of the artificial ligament is conveniently and rapidly pulled and fixed, and the convenience of cutting the artificial ligament and the ligament cutting accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of artificial ligament technology, and in particular to an artificial ligament trimmer. Background Technology

[0002] In competitive sports and daily life, ligament injuries have become a major obstacle affecting people's athletic function and quality of life. However, with the rapid advancement of medical technology, artificial ligaments, as a revolutionary medical technology, are bringing hope to countless patients to return to the sports field. Artificial ligaments are designed using advanced biomaterials and are almost 3.2 times stronger than the ligaments they replace. They have advantages such as minimal surgical trauma, high strength, and rapid recovery. During the use or preparation of artificial ligaments, they need to be trimmed to adjust their length. However, during the general trimming process, doctors need to spend extra effort to restrict the range of motion of the ligaments to prevent them from slipping during the cutting process, which would reduce the efficiency of the surgery. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an artificial ligament trimmer that allows users to quickly limit the range of motion of ligaments, improves the convenience and accuracy of cutting artificial ligaments, and improves surgical efficiency.

[0004] This utility model also provides an artificial ligament trimmer as described above, comprising: a cylinder, a traction channel provided at the left end of the cylinder, the upper, lower and left ends of the traction channel all penetrating the cylinder, a T-shaped handle fixedly connected to the right end of the cylinder, pressure plates fixedly connected to the upper and lower ends of the side surface of the cylinder, a push rod provided inside the cylinder, a Y-shaped blade and a ring blade fixedly connected to the left end of the push rod and the inner wall of the traction channel respectively, a spring fixedly connected between the push rod and the right inner wall of the cylinder, the right end of the push rod passing through the spring and penetrating the right surface of the cylinder, a button provided at the right end of the push rod, and the left end of the button penetrating into the interior of the cylinder.

[0005] According to the artificial ligament trimmer of this invention, there are two annular blades, which are distributed vertically opposite each other. This improves the effectiveness of the annular blades.

[0006] According to the artificial ligament trimmer of this invention, the Y-shaped blade consists of two blades, and the left end of the Y-shaped blade has a rounded structure. This improves the effectiveness of the Y-shaped blade.

[0007] According to the artificial ligament trimmer of this utility model, a fixing pin is provided on the surface of the button, and the lower end of the fixing pin passes through the button and the left end of the push rod. This improves the stability of the push rod when it is not in use.

[0008] According to the artificial ligament trimmer of this utility model, the surface of the push rod is provided with a strip-shaped opening, and the front surface of the cylinder is provided with a limiting pin, which penetrates into the interior of the cylinder and passes through the strip-shaped opening. This improves the stability of the push rod during operation.

[0009] According to the artificial ligament trimmer of this invention, the compression plate is made of elastic material, and the edge of the compression plate is provided with serrations. This improves the effectiveness of the compression plate.

[0010] Beneficial effects:

[0011] The artificial ligament trimmer of this technical solution uses a cylinder, pressure plate, push rod, spring, button, traction channel, and annular cutting edge to conveniently clamp and fix the ligament to be cut. It cuts the ligament by using the interlacing of the blades and the small-range sliding friction between the blades and the artificial ligament, which restricts the range of motion of the cut ligament, prevents the ligament from sliding during the cutting process, and improves the cutting accuracy. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a top view of the artificial ligament trimmer of this utility model;

[0014] Figure 2 This is a bottom view of the artificial ligament trimmer of this utility model;

[0015] Figure 3 This is a cross-sectional view of the artificial ligament trimmer of this utility model;

[0016] Figure 4 This is a structural diagram showing the disassembled state of the artificial ligament trimmer of this utility model.

[0017] Legend:

[0018] 1. Cylinder; 2. Limiting pin; 3. Traction channel; 4. Annular blade; 5. Pressure plate; 6. Fixing pin; 7. Button; 8. T-shaped grip; 9. Push rod; 10. Y-shaped blade; 11. Strip opening; 12. Spring. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-4This utility model embodiment of the artificial ligament trimmer includes: a cylinder 1, a traction channel 3 provided at the left end of the cylinder 1, the upper, lower and left ends of the traction channel 3 all passing through the cylinder 1, a T-shaped handle 8 fixedly connected to the right end of the cylinder 1, the T-shaped handle 8 improving the convenience of picking up the cylinder 1, pressure plates 5 fixedly connected to the upper and lower ends of the side surface of the cylinder 1, the pressure plates 5 are made of elastic material, and the edges of the pressure plates 5 are provided with serrations, the pressure plates 5 use the stress of elastic deformation to clamp and fix the ligament, a push rod 9 is provided inside the cylinder 1, the left end of the push rod 9 and the inner wall of the traction channel 3 are respectively fixedly connected to a Y-shaped blade 10 and an annular blade 4, there are two annular blades 4, the two annular blades 4 are distributed vertically opposite each other, the Y-shaped blade 10 is composed of two blades, and the left end of the Y-shaped blade 10 is an arc structure, the Y-shaped blade 10 and the annular blade 4 cooperate to cut the ligament by the vertically staggered blades.

[0021] Specifically, the pulled ligament is passed through the traction channel 3, at which point the ligament is bent at 90° as it passes through the traction channel 3. Then, holding the T-shaped handle 8, the cylinder 1 is pushed into the channel until the left end of the cylinder 1 contacts the bone. Then, the ligament is pulled to the side of the cylinder 1. When the ligament is pulled to the pressure plate 5, the pressure plate 5 is manually bent. Then, the pressure plate 5 is placed between the pressure plate 5 and the cylinder 1. The pressure plate 5 is used to clamp and fix the ligament, keeping it in a straight state. The ligament passing through the traction channel 3 contacts the annular blade 4 and the Y-shaped blade 10. The arc-shaped structure at the left end of the Y-shaped blade 10 allows the blade edge to better fit the ligament.

[0022] A spring 12 is fixedly connected between the push rod 9 and the right inner wall of the cylinder 1. The spring 12 is used to provide the conditions for the push rod 9 to automatically reset. The right end of the push rod 9 passes through the spring 12 and penetrates the right surface of the cylinder 1. A button 7 is provided at the right end of the push rod 9. The left end of the button 7 penetrates into the interior of the cylinder 1. A fixing pin 6 is provided on the surface of the button 7. The lower end of the fixing pin 6 penetrates the button 7 and the left end of the push rod 9. The fixing pin 6 is used to increase the stability of the push rod 9 when it is not in use. A strip-shaped opening 11 is provided on the surface of the push rod 9. A limit pin 2 is provided on the front surface of the cylinder 1. The limit pin 2 penetrates into the interior of the cylinder 1 and passes through the strip-shaped opening 11. The limit pin 2 is used to limit the stability of the push rod 9 during the left and right sliding process.

[0023] Specifically, after fixing the ligament with the pressure plate 5, the fixing pin 6 is pulled out, and then the button 7 is pressed manually. The button 7 is pressed into the inside of the cylinder 1, and the push rod 9 integrated with the button 7 is driven to slide to the left. During the leftward sliding of the push rod 9, the Y-shaped blade 10 contacts the surface of the ligament, applying a leftward pushing force to the ligament, so that the Y-shaped blade 10 ruptures the ligament, and at the same time pushes the ligament towards the annular blade 4. At this time, both the front and rear sides of the ligament are cut by the blade. During the sliding of the push rod 9, the spring 12 is stretched. After the external force applied to the push rod 9 is released, the spring 12 automatically contracts under stress, driving the push rod 9 to slide to the right.

[0024] Working principle: In clinical use, excess artificial ligaments need to be pulled out through traction channel 3. Then, the pulled-out ligaments are clamped by the left or right pressure plate 5. Then, the fixation pin 6 is released from the restriction of button 7, and a pushing force is applied to button 7. This applies the force to cut the ligament to the Y-shaped blade 10 and the ring blade 4, achieving the effect of clamping and fixing the ligaments before cutting. The arc-shaped structure and compact structure of cylinder 1 allow cylinder 1 to be easily inserted into the designated position. At the same time, the arc-shaped structure allows the left end of cylinder 1 to better fit the bone surface and reduce tissue damage.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An artificial ligament trimmer, characterized in that, include: A cylindrical tube (1) is provided with a traction channel (3) at its left end. The upper, lower, and left ends of the traction channel (3) all pass through the cylindrical tube (1). A T-shaped handle (8) is fixedly connected to the right end of the cylindrical tube (1). Pressure plates (5) are fixedly connected to the upper and lower ends of the side surface of the cylindrical tube (1). A push rod (9) is provided inside the cylindrical tube (1). A Y-shaped blade (10) and a ring blade (4) are fixedly connected to the left end of the push rod (9) and the inner wall of the traction channel (3) respectively. A spring (12) is fixedly connected between the push rod (9) and the right inner wall of the cylinder (1). The right end of the push rod (9) passes through the spring (12) and penetrates the right surface of the cylinder (1). A button (7) is provided on the right end of the push rod (9). The left end of the button (7) penetrates into the interior of the cylinder (1).

2. The artificial ligament trimmer according to claim 1, characterized in that, There are two annular blades (4), which are distributed vertically opposite each other.

3. The artificial ligament trimmer according to claim 1, characterized in that, The Y-shaped blade (10) consists of two blades, and the left end of the Y-shaped blade (10) is an arc structure.

4. The artificial ligament trimmer according to claim 1, characterized in that, The surface of the button (7) is provided with a fixing pin (6), and the lower end of the fixing pin (6) passes through the left end of the button (7) and the push rod (9).

5. The artificial ligament trimmer according to claim 1, characterized in that, The push rod (9) has a strip opening (11) on its surface, and the front surface of the cylinder (1) has a limiting pin (2) which passes through the strip opening (11) into the interior of the cylinder (1).

6. The artificial ligament trimmer according to claim 1, characterized in that, The pressure plate (5) is made of elastic material, and the edge of the pressure plate (5) is provided with serrations.

Images