Meniscal total internal suture system

Abstract

This application discloses a complete internal meniscus suturing system. The system includes an operating body, a puncture assembly, and an adjustment assembly. The puncture assembly includes an inner tube, an outer tube, and a puncture needle. The first end of the inner tube is fixedly connected to the operating body, and the second end extends away from the operating body. The puncture needle is fixedly disposed at the second end of the inner tube. The outer tube is sleeved around the outer periphery of the inner tube, with the end of the outer tube away from the operating body fixed to the second end of the inner tube. Both the inner and outer tubes have deformable portions. The adjustment assembly is connected between the operating body and the outer tube and can move towards or away from the operating body, causing the puncture assembly to deform at the deformable portion, bending towards a first direction or towards a second direction opposite to the first direction. This complete internal meniscus suturing system allows for stepless adjustment of the bending angle of the puncture assembly without the aid of other structures, providing flexible and convenient operation.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a complete internal meniscus suture system. Background Technology

[0002] Meniscus injury is a condition characterized by knee pain, locking, giving way, and clicking sounds. It may also be accompanied by quadriceps atrophy, localized tenderness with a fixed joint space, a positive McMurray test, and limited knee range of motion. Meniscus injuries are often caused by torsional forces and are a common sports injury.

[0003] Due to the anatomical characteristics of the meniscus, the conventional clinical treatment for tears in the red-white or red-red zones is suture repair. Meniscus suturing methods include arthroscopic inside-out, outside-in, and all-inside suturing. The all-inside suturing technique overcomes many limitations of the inside-out and outside-in techniques and is widely popular due to its advantages: 1. It safely repairs the meniscus without requiring a separate posterior incision. 2. This technique is easy to use for suturing tears in the middle and posterior thirds of the meniscus. 3. Assistants can perform the procedure without specialized training. 4. This technique supports both vertical and horizontal mattress sutures of the meniscus.

[0004] In existing technologies, most internal meniscus suture devices have a fixed angle, generally around 17°, with a maximum angle of around 27°. This makes it impossible to suture the middle and anterior regions of the meniscus, especially the anterior horn. Another type of flexible meniscus suture device can reach an angle of up to 80°, but it requires bending with special tools before surgery and cannot be adjusted during the operation, thus lacking the flexibility of surgical operation. Summary of the Invention

[0005] The main objective of this application is to provide a complete internal meniscus suture system that allows for stepless adjustment of the bending angle of the puncture component without the aid of other structures, making operation flexible and convenient.

[0006] According to one aspect of the embodiments of this application, a total internal meniscus suture system is provided, comprising:

[0007] Operating entity;

[0008] A puncture assembly includes an inner tube, an outer tube, and a puncture needle. A first end of the inner tube is fixedly connected to the operating body, and a second end of the inner tube extends away from the operating body. The puncture needle is fixedly disposed at the second end of the inner tube. The outer tube is sleeved around the outer periphery of the inner tube, and the end of the outer tube away from the operating body is fixed to the second end of the inner tube. Both the inner and outer tubes have deformable portions.

[0009] An adjustment component is connected between the operating body and the outer tube and can move toward or away from the operating body to cause the puncture component to deform at the deformable part to bend toward a first direction or toward a second direction opposite to the first direction.

[0010] Furthermore, the deformable portion is disposed on the side of the inner tube and the outer tube away from the operating body.

[0011] Furthermore, the deformable part includes multiple deformation slots, which are arranged sequentially along the length of the inner tube.

[0012] Furthermore, the deformation gap is provided through the sidewalls of the inner tube and the outer tube.

[0013] Furthermore, the deformation gap is arranged in a straight strip shape, a corrugated shape, or a sawtooth shape along the circumference of the outer tube.

[0014] Furthermore, an elongated hole is provided at the end of the outer tube and the inner tube away from the operating body, and the length direction of the elongated hole is consistent with the length direction of the outer tube and the inner tube.

[0015] Furthermore, the adjustment component includes:

[0016] An adjusting member, connected between the outer tube and the operating body, reciprocates relative to the operating body along its length to apply force to the outer tube; and

[0017] An elastic element is abutting between the adjusting element and the outer tube.

[0018] Furthermore, a connecting stud is provided at one end of the operating body near the outer tube, and an outer flange is provided at one end of the outer tube near the operating body;

[0019] The adjusting component includes an adjusting sleeve, which is screwed onto the connecting stud and can reciprocate along the length of the connecting stud. The end of the adjusting sleeve away from the operating body is provided with an inner flange, and the elastic element abuts between the connecting stud and the outer flange so that the inner flange abuts against the inner flange.

[0020] Furthermore, the connecting stud is provided with a limiting step for limiting the position of the adjusting sleeve.

[0021] Furthermore, a guide post is provided at one end of the connecting stud near the outer tube, and an annular guide groove is provided on the guide post, and the outer tube is movably inserted into the annular guide groove.

[0022] Compared with the prior art, the technical solution of this application has at least the following technical effects:

[0023] Because the internal meniscus suture system of this application is equipped with an adjustment component, the puncture component can be adjusted during the operation to bend in either a first or second direction. Simultaneously, by controlling the movement of the adjustment component, the bending angle of the puncture component can also be controlled and adjusted. Compared to existing internal meniscus suture systems, the internal meniscus suture system of this application allows for angle adjustment without the need for other tools. Furthermore, the internal meniscus suture system of this application has a wider angle adjustment range, and the angle adjustment can be performed as needed during the operation, making it flexible, convenient, and easier for medical personnel to use. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is a schematic diagram of the internal meniscus suture system disclosed in the embodiments of this application;

[0026] Figure 2 for Figure 1 A magnified view of region M in the image;

[0027] Figure 3 This is a front view of the total internal meniscus suture system disclosed in the embodiments of this application;

[0028] Figure 4 for Figure 3 AA section view in the middle;

[0029] Figure 5 for Figure 3 BB section view in the middle;

[0030] Figure 6 This is a top view of the total internal meniscus suture system disclosed in the embodiments of this application;

[0031] Figure 7 for Figure 6 CC section view in the image.

[0032] The above figures include the following reference numerals:

[0033] 10. Operating body; 11. Connecting stud; 111. Limiting step; 112. Guide post; 113. Annular guide groove; 20. Puncture assembly; 21. Inner tube; 22. Outer tube; 221. Outer flange; 23. Puncture needle; 201. Deformation part; 2011. Deformation gap; 202. Elongated hole; 30. Adjustment assembly; 31. Adjusting component; 311. Inner flange; 32. Elastic component; 40. Guide rod. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] See Figures 1 to 4 As shown, according to an embodiment of this application, a total internal meniscus suture system is provided, which includes an operating body 10, a puncture assembly 20, and an adjustment assembly 30.

[0038] The puncture assembly 20 includes an inner tube 21, an outer tube 22, and a puncture needle 23. The first end of the inner tube 21 is fixedly connected to the operating body 10, and the second end of the inner tube 21 extends away from the operating body 10. The puncture needle 23 is fixedly disposed at the second end of the inner tube 21. The outer tube 22 is sleeved on the outer periphery of the inner tube 21, and the end of the outer tube 22 away from the operating body 10 is fixed to the second end of the inner tube 21. Both the inner tube 21 and the outer tube 22 are provided with deformable portions 201. The adjustment assembly 30 is connected between the operating body 10 and the outer tube 22 and can move towards or away from the operating body 10, thereby causing the puncture assembly 20 to deform at the deformable portion 201 to bend towards a first direction or towards a second direction opposite to the first direction.

[0039] Since the first end of the inner tube 21 in this embodiment is fixedly connected to the operating body 10, and the second end of the inner tube 21 is fixed to the outer tube 22, when the adjusting component 30 drives the outer tube 22 to move towards the operating body 10, a pulling force can be applied to the outer tube 22. At this time, supported by the inner tube 21, the outer tube 22 cannot move in a straight line towards the operating body 10. When the adjusting component 30 continues to drive the outer tube 22 towards the operating body 10, the inner tube 21 and the outer tube 22 will deform at the deformation part 201. This causes the entire puncture assembly 20 to bend in the first direction. When the adjusting assembly 30 moves the outer tube 22 away from the operating body 10, it can apply a pushing force to the outer tube 22. At this time, with the support of the inner tube 21, the outer tube 22 cannot move in a straight line away from the operating body 10. When the adjusting assembly 30 continues to move the outer tube 22 away from the operating body 10, the inner tube 21 and the outer tube 22 will deform at the deformation part 201 so that the entire puncture assembly 20 bends in the second direction opposite to the first direction.

[0040] In other words, because the internal meniscus suture system in this embodiment is equipped with an adjustment component 30, the puncture component 20 can be adjusted during the operation, causing it to bend in either a first or second direction. Simultaneously, by controlling the movement of the adjustment component 30, the bending angle of the puncture component 20 can also be controlled and adjusted. Compared to existing internal meniscus suture systems, the internal meniscus suture system in this application allows for angle adjustment without the need for other tools. Furthermore, the internal meniscus suture system in this application has a wider angle adjustment range, and the angle adjustment can be performed as needed during the operation, making it flexible, convenient, and easier for medical personnel to use.

[0041] As can be seen, the present invention provides a meniscus internal suturing system that allows for stepless adjustment of the bending angle of the meniscus stapler during surgery without the need for special tools. It can be bent in both directions, and the bending adjustment is convenient and simple. It can reach surgical areas that cannot be reached by a fixed meniscus stapler, such as the middle and anterior parts, achieving completely endoscopic operation without the need for preoperative adjustment.

[0042] Specifically, the operating body 10 in this embodiment includes an operating handle with a guide rod 40 connected to it. The guide rod 40 passes through the adjustment component 30. During the actual surgery, the operating handle moves the guide rod 40 within the puncture component 20, thereby moving the suture or suture piece along the puncture component 20 to perform a total internal meniscus suture. During actual assembly, the first end of the inner tube 21 can be connected to the operating body 10 by bonding, welding, or screwing. The second end of the inner tube 21 can be connected to the end of the outer tube 22 furthest from the operating body 10 by bonding, welding, or screwing. The puncture needle 23 can be connected to the second end of the inner tube 21 by bonding, welding, or screwing.

[0043] See Figure 2 As shown, in this embodiment, the deformable part 201 is disposed on the side of the inner tube 21 and the outer tube 22 away from the operating body 10. With this arrangement, when the adjusting component 30 drives the outer tube 22 to move, it is easier to drive the suspended end of the puncture component 20 to bend in the first direction or the second direction, making the operation more time-saving and labor-saving.

[0044] Combination Figure 2 , Figure 3 , Figure 5 as well as Figure 7 As shown, the deformable part 201 in this embodiment includes multiple deformable slits 2011, which are arranged sequentially along the length of the inner tube 21. With this arrangement, when the adjusting component 30 moves the outer tube 22 toward the direction of approaching or moving away from the operating body 10, the entire puncture component 20 can be deformed at the deformable slits 2011 and bend toward the first direction or toward the second direction under the support of the inner tube 21.

[0045] Optionally, in this embodiment, the deformation gap 2011 is provided through the sidewalls of the inner tube 21 and the outer tube 22. This arrangement is more suitable for the piercing assembly 20 to deform and bend, making the operation simple and quick. For example, in this embodiment, the deformation gap 2011 can be arranged in a straight strip shape along the circumference of the outer tube 22, or it can be arranged in a corrugated or serrated shape. Figure 2As shown, this embodiment illustrates the case where the deformation gap 2011 is corrugated along the circumference of the outer tube 22. By arranging the deformation gap 2011 along the circumference of the outer tube 22, when the adjusting component 30 moves the outer tube 22, it is more suitable to cause the outer tube 22 to bend along the deformation gap 2011. In actual manufacturing, the deformation gap 2011 is formed on the outer tube 22 and the inner tube 21 by laser cutting, resulting in a simple structure that is easy to implement.

[0046] Furthermore, in this embodiment, an elongated hole 202 is provided at the end of the outer tube 22 and the inner tube 21 away from the operating body 10. The length direction of the elongated hole 202 is consistent with the length direction of the outer tube 22 and the inner tube 21. This arrangement can disperse the stress concentration during the deformation process of the puncture assembly 20, thereby improving the service life of the puncture assembly 20 in this embodiment. Optionally, the elongated hole 202 can be one, or two or more, such as... Figure 2 As shown in the figure, this embodiment shows the case where there are two elongated holes 202. The two elongated holes 202 extend along the same straight direction of the outer tube 22 and the inner tube 21, and the elongated holes 202 are provided through the side walls of the outer tube 22 and the inner tube 21.

[0047] Combination Figures 3 to 7 As shown, the adjustment component 30 in this embodiment includes an adjustment member 31 and an elastic member 32. The adjustment member 31 is connected between the outer tube 22 and the operating body 10. The adjustment member 31 reciprocates relative to the operating body 10 along its length to apply force to the outer tube 22. The elastic member 32 is abutted between the adjustment member 31 and the outer tube 22. Specifically, the operating body 10 has a connecting stud 11 at its end near the outer tube 22, and the outer tube 22 has an outer flange 221 at its end near the operating body 10. The adjustment member 31 includes an adjustment sleeve screwed onto the connecting stud 11 and reciprocating along the length of the connecting stud 11. The end of the adjustment sleeve away from the operating body 10 has an inner flange 311. The elastic member 32 abuts between the connecting stud 11 and the outer flange 221 so that the inner flange 311 abuts against the inner flange 311. Optionally, the elastic member 32 in this embodiment can be a spring, an elastic sleeve, or an elastic pad, etc.

[0048] In actual operation, when the adjusting component 31 is turned, the adjusting component 31 can move relative to the length direction of the connecting stud 11. When the adjusting sleeve moves toward the direction closer to the operating body 10, it can drive the outer tube 22 to move toward the direction closer to the operating body 10. At this time, under the pressure of the inner tube 21, the entire piercing assembly 20 can deform at the deformation part 201 to bend toward the first square. At this time, the elastic element 32 is compressed. When the adjusting sleeve rotates along the connecting stud 11 and moves toward the direction away from the operating body 10, the elastic element 32 returns to its original position, which can drive the outer tube 22 to move toward the direction away from the operating body 10. At this time, under the pull of the inner tube 21, the entire piercing assembly 20 can deform at the deformation part 201 to bend toward the second direction opposite to the first square. The structure is simple and easy to adjust.

[0049] To limit the adjustment sleeve, the connecting stud 11 in this embodiment is provided with a limiting step 111 for limiting the adjustment sleeve. The limiting step 111 can limit the adjustment sleeve. Of course, in other embodiments of this application, the limiting step 111 can also be set as a limiting protrusion or other structures. Any other modifications under the concept of this application are within the protection scope of this application.

[0050] In this application, the bending angle of the inner tube 21 and the outer tube 22 can theoretically range from 0° to 180°. The size of the bending angle can be determined by designing the elastic coefficient of the elastic element 32 and the moving stroke of the adjusting sleeve. In actual operation, the greater the displacement of the adjusting sleeve along the connecting stud 11, the greater the bending angle of the inner tube 21 and the outer tube 22.

[0051] Furthermore, in this embodiment, a guide post 112 is provided at the end of the connecting stud 11 near the outer tube 22. The guide post 112 has an annular guide groove 113, and the outer tube 22 is movably inserted into the annular guide groove 113. During actual installation, the elastic element 32 is sleeved on the guide post 112 and abuts against the connecting stud 11 and the outer flange 221, ensuring a stable and reliable structure. During assembly, the end of the outer tube 22 is inserted into the annular guide groove 113. Through the action of the annular guide groove 113, the outer tube 22 can be limited and guided, improving the structural stability of the internal meniscus suture system in this embodiment.

[0052] Based on the above structure, the working principle of the total internal meniscus suture system of this application is as follows:

[0053] The puncture needle 23 is connected to the inner tube 21 (e.g., by welding or bonding). The inner tube 21 and the outer tube 22 are also welded together at the head away from the operating body 10 to form a whole. The inner tube 21 and the outer tube 22 are laser-cut near the tip of the puncture needle 23 to form a deformable part 201, which allows the inner tube 21 and the outer tube 22 to bend to a certain extent. The elastic element 32 provides an initial elastic force along the axis toward the tip of the puncture needle 23. Under the action of the elastic force, the outer tube 22 is displaced along the axis toward the tip of the puncture needle 23. Since the outer tube 22 and the inner tube 21 have been welded together, they cannot be displaced. This causes the deformable part 201 generated by the laser cutting to bend in one direction, resulting in a certain bending of the outer tube 22 and the inner tube 21. Conversely, when the adjusting element 31 is adjusted, the outer tube 22 and the inner tube 21 will bend in one direction, clockwise for a positive bend and counterclockwise for a negative bend.

[0054] As can be seen, the internal meniscus suture system of this application can be adjusted in both directions during the operation without the need for special tools. If the angle is not suitable during the operation, it does not need to be removed for adjustment, realizing completely arthroscopic operation. The operation is simple and quick, and it can reach surgical areas that cannot be reached by fixed meniscus suture devices, such as the middle and anterior parts.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0057] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A total inside-out meniscus suturing system, characterized by, The utility model relates to a puncture device, which comprises: an operation body (10); a puncture assembly (20) comprising an inner tube (21), an outer tube (22) and a puncture needle (23), the first end of the inner tube (21) being fixedly connected to the operation body (10), the second end of the inner tube (21) extending away from the operation body (10), the puncture needle (23) being fixedly arranged at the second end of the inner tube (21), the outer tube (22) being sleeved on the outer periphery of the inner tube (21), and the end of the outer tube (22) away from the operation body (10) being fixedly arranged at the second end of the inner tube (21), the inner tube (21) and the outer tube (22) each being provided with a deformation part (201); and an adjusting assembly (30) connected between the operation body (10) and the outer tube (22) and movable towards the operation body (10) or away from the operation body (10) to drive the puncture assembly (20) to deform at the deformation part (201) to bend towards a first direction or a second direction opposite to the first direction. The adjusting assembly (30) comprises: an adjusting member (31) connected between the outer tube (22) and the operation body (10), the adjusting member (31) reciprocating relative to the length direction of the operation body (10) to apply force to the outer tube (22); and a resilient member (32) abuttingly arranged between the adjusting member (31) and the outer tube (22).

2. The all-inside meniscus repair system of claim 1, wherein, The deformation part (201) is arranged on the side of the inner tube (21) and the outer tube (22) away from the operation body (10).

3. The all-inside meniscus repair system of claim 1, wherein, The deformation part (201) comprises a plurality of deformation slits (2011) arranged in sequence along the length direction of the inner tube (21).

4. The all-inside meniscus repair system of claim 3, wherein, The deformation slit (2011) is arranged through the side wall of the inner tube (21) and the outer tube (22).

5. The all-inside meniscus repair system of claim 3, wherein, The deformation slit (2011) is arranged in a straight strip shape, a wave shape or a zigzag shape along the circumferential direction of the outer tube (22).

6. The all-inside meniscus repair system of claim 1, wherein, The end of the outer tube (22) and the inner tube (21) away from the operation body (10) is provided with a long hole (202), and the length direction of the long hole (202) is consistent with the length direction of the outer tube (22) and the inner tube (21).

7. The all-inside meniscus repair system of any of claims 1 to 6, wherein, The end of the operation body (10) close to the outer tube (22) is provided with a connecting stud (11), and the end of the outer tube (22) close to the operation body (10) is provided with an outer flange (221). The adjusting part (31) comprises an adjusting sleeve, the adjusting sleeve is screwed on the connecting stud (11) and can reciprocate along the length direction of the connecting stud (11), and the end of the adjusting sleeve away from the operating main body (10) is provided with an inner flange (311), the elastic part (32) is abutted between the connecting stud (11) and the outer flange (221) to make the inner flange (311) abut on the inner flange (311).

8. The all-inside meniscus repair system of claim 7, wherein, The connecting stud (11) is provided with a limiting step (111) for limiting the adjusting sleeve.

9. The all-inside meniscus repair system of claim 7, wherein, The connecting stud (11) is provided with a guide column (112) near one end of the outer tube (22), the guide column (112) is provided with an annular guide groove (113), and the outer tube (22) is movably inserted into the annular guide groove (113).

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