Meniscus guiding type suturing device

Abstract

The utility model discloses a meniscus guiding type suturing device which comprises a positioning seat, the positioning seat is provided with a positioning part and an adjusting part, the positioning part comprises a suturing section, a resetting section and a joint section, the suturing section is connected with a suturing needle, and the resetting section is connected with a resetting rod; the adjusting part is connected with a rotating shaft through a support, a gear is connected into the support, and a gear ring meshed with the gear correspondingly is arranged at the position, corresponding to the gear, of the outer side wall of the adjusting part. According to the suture device, the positioning part and the adjusting part are matched to adjust the suture needle and the reset rod in a multi-direction and multi-angle mode, the suture device has higher suture strength and pressure bearing performance, the stability of the device is better during operation, meanwhile, after a torn meniscus is pressed and reset, vertical suture can be better guaranteed, and the suture efficiency is improved. Restoration stability and suturing quality are improved, and operation difficulty and related risks of an operation are reduced at the same time.

Description

Technical Field

[0001] This utility model relates to the technical field of meniscus suture auxiliary equipment. Specifically, it is a meniscus guided suture device. Background Technology

[0002] Meniscus injury is one of the most common knee injuries in clinical practice. Once the meniscus is damaged, its original functions of transmitting load and stabilizing the knee joint are lost. Furthermore, the abnormal movement of the damaged meniscus within the knee joint often produces severe symptoms and can sometimes lead to further damage to the articular cartilage. The meniscus plays a vital role in transmitting load, cushioning stress, lubricating the joint, and increasing joint stability; it is an indispensable structure for the normal physiological function of the knee joint. Total meniscectomy has become a surgical approach that is gradually being abandoned. When a meniscus injury is discovered, at most a partial meniscus removal is performed, preserving as much of the undamaged portion as possible—this is now a consensus. New surgical methods such as meniscus suture and meniscus transplantation are gradually being accepted and promoted by clinicians.

[0003] The purpose of meniscus repair is to heal the torn meniscus and restore its physiological function. In practice, with an assistant applying external force to evert the knee, the surgeon uses a probe to explore the posterior horn of the medial meniscus for damage. Then, a fixator is used to fix the torn area of ​​the meniscus, and the suture is then made with a suture needle. Due to limited physical strength and field of vision, it is difficult to accurately locate the needle insertion angle by arthroscopic observation alone. This results in a longer time required to find the needle insertion angle, which may lead to unstable meniscus fixation and increase the difficulty of the operation. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to provide a meniscus guided suturing device, which, through the cooperation of the positioning part and the adjustment part, allows for multi-directional and multi-angle adjustment of the suture needle and the repositioning rod, resulting in higher suture strength and pressure resistance. The stability of the instrument is better during operation, and after pressing and repositioning the torn meniscus, it can better ensure vertical suturing, improve the stability of repositioning and suturing quality, and reduce the difficulty and related risks of the operation.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A meniscus guided suturing device includes a positioning seat, which has a positioning part and an adjustment part that are vertically corresponding. The positioning part includes a suturing section, a resetting section, and a connecting section that connects the suturing section and the resetting section. A suture needle that is movably connected to the suturing section is connected to the suturing section, and a resetting rod that is movably connected to the resetting section is connected to the resetting section.

[0007] The outer wall of the adjustment part is connected to a rotating shaft via a support. A gear is connected inside the cavity of the support. A gear ring is provided on the outer wall of the adjustment part corresponding to the gear and extending along the outer peripheral wall of the adjustment part to mesh with the gear.

[0008] Furthermore, the positioning seat is C-shaped, the suture section, the joining section and the reset section are integral structures, and the end of the support near the adjustment part is slidably connected to the side wall of the adjustment part.

[0009] Furthermore, a through groove is provided at the top of the suture segment, and a through groove is provided on the side wall of the suture segment, which penetrates the side wall of the suture segment. Both through groove one and through groove two extend circumferentially along the suture segment, and through groove one and through groove two are connected and correspond to each other.

[0010] The tip of the suture needle enters the interior of the positioning seat radially along the second through groove. The suture needle is slidably connected in the second through groove. The first through groove is provided with a clamping frame for positioning the suture needle.

[0011] Furthermore, a clearance groove is provided on the side wall of the reset section, extending through the side wall of the reset section. The clearance groove extends circumferentially along the reset section. A slider is connected to the clearance groove and slides along the clearance groove. One end of the reset rod is connected to the slider, and the end of the reset rod away from the slider is set towards the inside of the positioning seat. The position of the reset rod in the clearance groove is adjusted by the slider.

[0012] Furthermore, the slider is connected to the reset section via a limiting mechanism. The limiting mechanism includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the outer wall of the slider, and the other end of the first connecting rod is hinged to the second connecting rod. The end of the second connecting rod away from the first connecting rod is movably connected to the outer wall of the reset section.

[0013] Furthermore, the reset rod is connected to the inner wall of the slider facing the positioning seat via a movable mechanism. The movable mechanism includes a guide rod, a collar, and a displacement ball. One end of the guide rod is connected to the outer wall of the collar, and the guide rod and the collar are integrally formed. The displacement ball is sleeved inside the collar and is movably connected to the collar.

[0014] The inner wall of the slider is provided with a displacement groove in the same direction as the relief groove. The displacement ball protrudes from the outer wall of the collar and has clamps on both sides. The displacement ball slides within the displacement groove through the clamps.

[0015] The technical solution of this utility model has achieved the following beneficial technical effects:

[0016] 1. This utility model discloses a meniscus guided suturing device. The radial and axial positions of the positioning seat can be changed individually or simultaneously without interference. This facilitates the treatment of injuries in narrow angles. The shape is more closely aligned with the anatomical curvature of the meniscus, which reduces damage to the cartilage by suturing instruments during surgery. It allows for adjustment of the straightness and curvature of the repositioning rod and suture needle from multiple angles and directions, and has high strength and high flexibility.

[0017] 2. This utility model provides a meniscus guiding suturing device. The repositioning rod can be adjusted through the limiting mechanism and the moving mechanism to facilitate the repositioning of meniscus injuries in various parts, facilitate the determination of the needle insertion angle, and at the same time form abutment support around the meniscus suture site. It can accurately reposition the meniscus while avoiding unnecessary damage to the meniscus.

[0018] 3. This utility model provides a meniscus guided suturing device, which, through the cooperation of the positioning and adjustment parts, allows for multi-directional and multi-angle adjustment of the suture needle and the repositioning rod. This results in higher suturing strength and pressure resistance, and better instrument stability during operation. Furthermore, after pressing and repositioning the torn meniscus, it can better ensure vertical suturing, improving the stability of repositioning and suturing quality, while reducing the difficulty and related risks of the operation. Attached Figure Description

[0019] Figure 1 This utility model discloses a structural schematic diagram of a meniscus guiding suture device;

[0020] Figure 2 This utility model provides a schematic diagram of the repositioning section of a meniscus guiding suture device.

[0021] Figure 3 A schematic diagram of the suture section of a meniscus guiding suture device according to this utility model;

[0022] Figure 4 This utility model discloses a limiting mechanism for a meniscus guiding suture device.

[0023] Figure 5 This utility model discloses a schematic diagram of the movable mechanism of a meniscus guiding suture device.

[0024] The reference numerals in the figure are as follows: 100, positioning seat; 101, adjusting part; 102, positioning part; 1021, reset section; 1022, suture section; 1023, joining section; 200, suture needle; 300, reset rod; 1, support; 2, rotating shaft; 3, gear; 4, gear ring; 5, through groove one; 6, through groove two; 7, clamping frame; 8, clearance groove; 9, connecting rod one; 10, connecting rod two; 11, slider; 12, guide rod; 13, displacement groove; 14, collar; 15, displacement ball; 16, clamping seat. Detailed Implementation

[0025] Example 1

[0026] This embodiment describes a meniscus guided suturing device, such as... Figure 1 As shown, it includes a positioning seat 100, which has a C-shaped structure with an excellent arc. The patient's knee joint can enter from the opening end of the C-shaped structure or be fitted from the upper end. The positioning seat 100 has a positioning part 102 and an adjustment part 101 that are corresponding vertically. The positioning part 102 and the adjustment part 101 are both located on the positioning seat 100 and are integrated with the positioning seat 100.

[0027] The adjustment section 101 is as follows Figure 2 As shown, its outer wall is connected to a rotating shaft 2 via a support 1, and the end of the support 1 near the adjusting part 101 is slidably connected to the side wall of the adjusting part 101. The adjusting part 101 can have a recessed groove corresponding to the support 1, so that the end of the support 1 is inserted into the groove and forms a slidable connection with the groove. The support 1 has an open structure with a cavity, and its open end faces the adjusting part 101. The upper and lower ends of its open end are respectively inserted into the groove of the adjusting part 101. The support 1 forms a support structure for the positioning seat 100, but does not affect the independent movement of the positioning seat 100 relative to the support 1. That is, there is no movement obstacle between the movement of the positioning seat 100 and the support 1. A gear 3 is connected in the cavity inside the support 1. The outer wall of the adjusting part 101 is provided with a gear ring 4 corresponding to the gear 3 and extending along the outer peripheral wall of the adjusting part 101. The center of the gear 3 is connected to the side wall of the support 1. Driven by a motor, the rotation of gear 3 causes the meshing gear ring 4 to rotate accordingly, thereby causing the entire positioning seat 100 to rotate to adjust the relative positions of the reset rod 300 and the suture needle 200 on the horizontal plane. In addition, the rotating shaft 2 is driven by an external force to drive the support 1 and the positioning seat 100 supported by the support 1 to rotate around the axis, thereby adjusting the axial position of the positioning seat 100. This causes the axial positions of the reset rod 300 and the suture needle 200 to change accordingly. The radial and axial position changes of the positioning seat 100 can be performed individually or simultaneously without interference, which is convenient for handling injuries in narrow angles. Its shape is more in line with the anatomical curvature of the meniscus, which reduces the damage to the cartilage by the suture instruments during operation. It can adjust the straightness and curvature of the reset rod 300 and the suture needle 200 from multiple angles and directions, and has high strength and high flexibility.

[0028] Example 2

[0029] This embodiment describes a meniscus guided suturing device, such as... Figure 1As shown, it includes a positioning seat 100, which has a C-shaped structure with an excellent arc. The patient's knee joint can enter from the opening end of the C-shaped structure or be fitted from the upper end. The positioning seat 100 has a positioning part 102 and an adjustment part 101 that are corresponding vertically. The positioning part 102 and the adjustment part 101 are both located on the positioning seat 100 and are integrated with the positioning seat 100.

[0030] The positioning part 102 includes a suture section 1022, a reset section 1021, and a joint section 1023 connecting the suture section 1022 and the reset section 1021. A suture needle 200 is connected to the suture section 1022 and is movably connected to the suture section 1022. The suture needle 200 is a commonly used suture device in the prior art. A reset rod 300 is connected to the reset section 1021 and is movably connected to the reset section 1021.

[0031] The suture segment 1022 as described Figure 3 As shown, a through groove 5 is provided at the top of the suture segment 1022, and a through groove 6 is provided on the side wall of the suture segment 1022, extending through the side wall of the suture segment 1022. Both through grooves 5 and 6 extend circumferentially along the suture segment 1022 and are connected and correspond to each other. The tip of the suture needle 200 enters the positioning seat 100 radially from through groove 6 and into the positioning seat 100. The suture needle 200 is slidably connected in through groove 6. A clamping frame 7 for positioning the suture needle 200 is provided in through groove 5. After positioning the puncture position and angle for suturing, the suture needle 200 is slowly slid along through groove 6. After adjustment, the clamping frame 7 in through groove 5 is fixed to fix the suture needle 200.

[0032] Example 3

[0033] This embodiment describes a meniscus guided suturing device, such as... Figure 1 As shown, it includes a positioning seat 100, which has a C-shaped structure with an excellent arc. The patient's knee joint can enter from the opening end of the C-shaped structure or be fitted from the upper end. The positioning seat 100 has a positioning part 102 and an adjustment part 101 that are corresponding vertically. The positioning part 102 and the adjustment part 101 are both located on the positioning seat 100 and are integrated with the positioning seat 100.

[0034] The positioning part 102 includes a suture section 1022, a reset section 1021, and a joint section 1023 connecting the suture section 1022 and the reset section 1021. A suture needle 200 is connected to the suture section 1022 and is movably connected to the suture section 1022. The suture needle 200 is a commonly used suture device in the prior art. A reset rod 300 is connected to the reset section 1021 and is movably connected to the reset section 1021.

[0035] Combination Figure 4The reset section 1021 has a clearance groove 8 that extends through the side wall of the reset section 1021. The clearance groove 8 extends circumferentially along the reset section 1021. A slider 11 is connected to the clearance groove 8 and is slidably connected along the clearance groove 8. One end of the reset rod 300 is connected to the slider 11, and the end of the reset rod 300 away from the slider 11 is set towards the inside of the positioning seat 100. The position of the reset rod 300 in the clearance groove 8 is adjusted by the slider 11.

[0036] The slider 11 is connected to the reset section 1021 through a limiting mechanism. The limiting mechanism includes a first connecting rod 9 and a second connecting rod 10. One end of the first connecting rod 9 is hinged to the outer wall of the slider 11, and the other end of the first connecting rod 9 is hinged to the second connecting rod 10. The end of the second connecting rod 10 away from the first connecting rod 9 is movably connected to the outer wall of the reset section 1021. The first connecting rod 9 and the second connecting rod 10 form a crank-connecting rod structure, which converts the rotational motion of the connecting rod into the linear motion of the slider 11 sliding in the relief groove 8, thereby adjusting the relative position of the slider 11 and forming a locking structure for the slider 11, so as to adjust the position of the reset rod 300 relative to the suture needle 200.

[0037] Combination Figure 5 The reset rod 300 is connected to the inner wall of the slider 11 facing the positioning seat 100 via a movable mechanism. The movable mechanism includes a guide rod 12, a collar 14, and a displacement ball 15. One end of the guide rod 12 is connected to the outer wall of the collar 14, and the guide rod 12 and the collar 14 are integrally formed. The displacement ball 15 is sleeved inside the collar 14 and is movably connected relative to the collar 14. A displacement groove 13 is formed on the inner wall of the slider 11, which is in the same direction as the clearance groove 8. The displacement ball 15 protrudes from the outer wall of the collar 14 and has clamps 16 on both sides. The displacement ball 15 slides within the displacement groove 13 through the clamps 16. The short-distance sliding of the displacement ball 15 within the displacement groove 13 through the clamps 16 can adjust the fine position of the reset rod 300. The rotation of the collar 14 relative to the displacement ball 15 can adjust the positioning angle of the reset rod 300, thereby adjusting the reset and fixing angle of the reset rod 300 relative to the suture needle 200.

[0038] The reset rod 300 can be adjusted through the limiting mechanism and the moving mechanism to facilitate the reset of meniscus injuries in various parts. During reset, the end of the reset rod 300 abuts against the corresponding dorsal side of the meniscus suture, forming an axis corresponding to the suture needle 200, which facilitates the determination of the insertion angle of the suture needle 200. At the same time, it forms abutment support around the meniscus suture, which can accurately reset the meniscus and avoid unnecessary damage to the meniscus.

[0039] The positioning part 102 and the adjustment part 101 work together to adjust the suture needle 200 and the reduction rod 300 in multiple directions and angles, resulting in higher suture strength and pressure resistance. The instruments are more stable during operation. At the same time, after pressing and reducing the torn meniscus, vertical suturing can be better ensured, which improves the stability of reduction and suture quality, while reducing the difficulty of operation and related risks of surgery.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A meniscus guiding suture device, characterized in that, The system includes a positioning base (100), which has a positioning part (102) and an adjustment part (101) that are vertically corresponding. The positioning part (102) includes a suture section (1022), a reset section (1021), and a connecting section (1023) that connects the suture section (1022) and the reset section (1021). A suture needle (200) that is movably connected to the suture section (1022) is connected to the suture section (1022), and a reset rod (300) that is movably connected to the reset section (1021) is connected to the reset section (1021). The outer wall of the adjustment part (101) is connected to a rotating shaft (2) via a support (1). A gear (3) is connected inside the cavity of the support (1). A gear ring (4) is provided on the outer wall of the adjustment part (101) corresponding to the gear (3) and extending along the outer peripheral wall of the adjustment part (101).

2. The meniscus guiding suture device according to claim 1, characterized in that, The positioning seat (100) is C-shaped, the suture section (1022), the joining section (1023) and the reset section (1021) are integral structures, and the end of the support (1) near the adjustment part (101) is slidably connected to the side wall of the adjustment part (101).

3. The meniscus guiding suture device according to claim 2, characterized in that, The top of the suture segment (1022) is provided with a through groove 1 (5), and the side wall of the suture segment (1022) is provided with a through groove 2 (6) that penetrates the side wall of the suture segment (1022). The through groove 1 (5) and the through groove 2 (6) are both extended circumferentially along the suture segment (1022), and the through groove 1 (5) and the through groove 2 (6) are connected and correspond to each other. The tip of the suture needle (200) passes radially into the positioning seat (100) through the second through groove (6). The suture needle (200) is slidably connected in the second through groove (6). The first through groove (5) is provided with a clamping frame (7) for positioning the suture needle (200).

4. The meniscus guiding suture device according to claim 1, characterized in that, A clearance groove (8) is provided on the side wall of the reset section (1021) and extends circumferentially along the reset section (1021). A slider (11) is connected in the clearance groove (8) and slides along the clearance groove (8). One end of the reset rod (300) is connected to the slider (11), and the end of the reset rod (300) away from the slider (11) is set towards the inside of the positioning seat (100). The position of the reset rod (300) in the clearance groove (8) is adjusted by the slider (11).

5. A meniscus guiding suture device according to claim 4, characterized in that, The slider (11) is connected to the reset section (1021) through a limiting mechanism. The limiting mechanism includes a first connecting rod (9) and a second connecting rod (10). One end of the first connecting rod (9) is hinged to the outer wall of the slider (11), and the other end of the first connecting rod (9) is hinged to the second connecting rod (10). The end of the second connecting rod (10) away from the first connecting rod (9) is movably connected to the outer wall of the reset section (1021).

6. The meniscus guiding suture device according to claim 5, characterized in that, The reset rod (300) is connected to the inner wall of the slider (11) facing the positioning seat (100) via a movable mechanism. The movable mechanism includes a guide rod (12), a collar (14) and a displacement ball (15). One end of the guide rod (12) is connected to the outer wall of the collar (14) and the guide rod (12) and the collar (14) are integral. The displacement ball (15) is sleeved inside the collar (14) and is movably connected to the collar (14). The inner wall of the slider (11) is provided with a displacement groove (13) in the same direction as the relief groove (8). The displacement ball (15) protrudes from the outer wall of the collar (14) and is provided with a clamp (16) protruding from the displacement ball (15). The displacement ball (15) slides and moves within the displacement groove (13) through the clamp (16).

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