Meniscus stitching instrument

Abstract

The utility model discloses a meniscus stitching instrument, and relates to the technical field of medical instruments, the meniscus stitching instrument comprises a shell, an operating handle, a plurality of delivery assemblies and a plurality of push rod assemblies, the plurality of delivery assemblies extend from the inside of the shell to the outside of the shell, and each delivery assembly is used for delivering a group of fixtures to a stitching position; the multiple push rod assemblies are arranged in the shell, connected with the multiple delivery assemblies in a one-to-one correspondence mode and used for driving the delivery assemblies to push the fixed object; the operating handle abuts against the push rod assemblies and is used for driving each push rod assembly to move. The reset piece is connected with the push rod assembly and used for achieving reset of the push rod assembly. The device has the effect of improving the operation efficiency for the meniscus repair operation needing to be sutured for multiple times.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a meniscus suture device. Background Art

[0002] In the surgery to repair the meniscus, the all-inside suturing technique is widely popular due to its small surgical trauma, short operation time and short patient recovery time. However, the meniscus suture device currently requires the doctor to push the wrench twice to push out the two fixtures at the head of the meniscus suture device to complete the suturing.

[0003] When the patient's meniscus is severely damaged, multiple sutures are required. Existing meniscus suturers can only suture once, so multiple meniscus suturers need to be used in one operation, causing waste. In addition, when doctors use multiple meniscus sutures, they need to insert them into the joints multiple times, making the operation process cumbersome, increasing the operation time, and increasing the risk of operation failure. Utility Model Content

[0004] In order to improve the problem of cumbersome suturing operation in meniscus repair surgery which requires multiple suturing operations, the present application provides a meniscus suturing device.

[0005] The present application provides a meniscus suture device, which adopts the following technical solution:

[0006] A meniscus suture device comprises a housing and further comprises:

[0007] A plurality of delivery components extending from inside the housing to outside the housing, and each of the delivery components is used to deliver a set of fixation objects to a suture site;

[0008] A plurality of push rod assemblies are disposed in the housing, the plurality of push rod assemblies are respectively connected to the plurality of delivery assemblies in a one-to-one correspondence, and are used to drive the delivery assemblies to push the fixed object;

[0009] An operating handle abuts against the push rod assembly and is used to drive each push rod assembly to move;

[0010] The reset member is connected to the push rod assembly and is used to reset the push rod assembly and the operating handle.

[0011] By adopting the above-mentioned technical scheme, the meniscus suture device of the present application is provided with multiple delivery components, which can deliver multiple groups of fixings to the suture site, thereby realizing multiple sutures and streamlining the surgical process; the doctor uses an operating handle to drive a push rod assembly to move, thereby driving a delivery component to deliver the fixings to the suture site to realize suturing; then the operating handle and the push rod assembly are reset by a reset member, and the operating handle is used to drive another push assembly to move, thereby driving another delivery component to deliver another group of fixings to the suture site to realize suturing, thereby realizing multiple sutures using a meniscus suture device.

[0012] Optionally, the operating handle is partially located inside the shell and partially located outside the shell, and a movable hole for the operating handle to move is opened on the shell, and the operating handle is driven to be located at different positions of the movable hole, and the operating handle abuts against different push rod assemblies respectively.

[0013] By adopting the above technical solution, the operating handle can be moved in the movable hole, so that the operating handle can be abutted against different push rod assemblies, thereby driving different push rod assemblies to move, thereby achieving the delivery and suturing of different groups of fixations.

[0014] Optionally, a convex column is fixed in the housing, and the operating handle is sleeved on the convex column;

[0015] A limiting ring is fixed on the boss, and the limiting ring is interference-fitted with the operating handle.

[0016] By adopting the above-mentioned technical solution, the operating handle can be moved along the boss to adjust the position of the operating handle, so that the operating handle can be abutted against different push rod assemblies; setting a limit ring can limit the movement of the operating handle on the boss, so that the operating handle can only be moved when pushed by the doctor, thereby making it easier for the doctor to control the position of the operating handle.

[0017] Optionally, the reset member includes a plurality of elastic restoring members arranged in one-to-one correspondence with the push rod assemblies, one end of the elastic restoring member is fixedly connected to the shell, and the other end is fixedly connected to the push rod assembly.

[0018] By adopting the above technical solution, each push rod assembly is connected to an elastic recovery member, so that after each push rod assembly moves under the drive of the operating handle, it can return to its original position under the elastic recovery force of the elastic recovery member.

[0019] Optionally, the push rod assembly includes a base, the base is provided with a groove, and when the operating handle drives the push rod assembly to move, the operating handle abuts against an inner wall of the groove;

[0020] After the plurality of push rod assemblies are reset, the grooves of the plurality of bases are connected.

[0021] By adopting the above technical solution, the operating handle abuts against the base, thereby realizing the driving of the push rod assembly by the operating handle; a groove is opened on the base, and the grooves of multiple bases are connected after resetting, so that when the operating handle is moved along the convex column, the operating handle can be smoothly moved from abutting against one push rod assembly to abutting against another push rod assembly.

[0022] Optionally, the push rod assembly further includes a push rod, the push rod is fixed to the base, and the push rod extends out of the housing;

[0023] The delivery assembly includes a sleeve and an access rod, wherein the sleeve is slidably connected to the housing, the access rod portion is inserted into the sleeve from an end of the sleeve away from the housing, and a fixture is installed in the access rod;

[0024] One end of the push rod away from the base is inserted into the sleeve from one end of the sleeve close to the shell, and is used to push the fixed object for delivery.

[0025] By adopting the above technical solution, the operating handle drives the push rod assembly to move, so that the push rod can drive the fixation object in the access rod to be delivered to the suture site, thereby achieving suturing.

[0026] Optionally, a clamping member is fixed to the inner wall of the housing, and a plurality of clamping grooves are provided on the clamping member at intervals along the axial direction of the access rod;

[0027] The clamping member is abutted against a length adjusting member, the length adjusting member is fixed to the sleeve, and the length adjusting member can be clamped in different clamping slots.

[0028] By adopting the above technical solution, before performing meniscus suturing, the delivery assembly needs to be accurately aligned to the surgical suture site. By adjusting the length adjustment piece to snap into different slots, the position of the push rod assembly can be adjusted, thereby adjusting the distance between the puncture needle tip and the shell, so that the fixed object can be delivered to the suture site more accurately.

[0029] Optionally, a limit block is provided in the housing, a long slot is provided on the limit block, an adjustment plate for the push rod to pass through is fixedly inserted in the long slot, a limit slot is provided on the adjustment plate, and the length adjustment member slides and is clamped in the limit slot;

[0030] A driving member protruding from the housing is fixed on the length adjusting member, and the driving member is used to drive the length adjusting member to slide along the limiting groove and enable the length adjusting member to be engaged in different slots.

[0031] By adopting the above technical solution, the doctor operates the driving member so that the driving member pushes the length adjustment member to be engaged in different slots on the limit block. At this time, the length adjustment member slides in the limit slot to drive the sleeve to slide relative to the shell, thereby realizing the adjustment of the position of the delivery component.

[0032] By adopting the above technical solution,

[0033] In summary, the present application includes at least one of the following beneficial effects:

[0034] 1. The meniscus suture device of the present application can realize the delivery of multiple sets of fixation objects by providing multiple delivery components and multiple push rod components, thereby realizing multiple suturing, reducing the number of meniscus suture devices used during one operation and reducing waste;

[0035] 2. The length adjustment member of the present application can be used to adjust the position of the delivery component, so that the meniscus suture device of the present application can deliver the fixation object to the surgical suture site more accurately;

[0036] 3. The present application can quickly realize the conversion of different push rod assemblies by sliding the operating handle, and can realize the delivery of the fixed object by rotating the operating handle. The operation is simple, convenient and fast, which can improve the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the meniscus suture device according to an embodiment of the present application;

[0038] Figure 2 Schematic diagram of the internal structure of the meniscus suture device according to the embodiment of the present application;

[0039] Figure 3 It is a partial structural schematic diagram of an embodiment of the present application for showing the internal structure of a meniscus suture device;

[0040] Figure 4 It is a partial structural schematic diagram of another viewing angle for showing the internal structure of the meniscus suture device according to an embodiment of the present application.

[0041] Explanation of the reference numerals: 1. Shell; 11. Movable hole; 12. Boss; 121. Limiting ring; 13. Connector; 131. Slot; 14. Limiting block; 141. Long slot; 15. Sliding track; 16. Clearance hole; 17. Operating hole; 2. Delivery assembly; 21. Sleeve; 22. Access rod; 3. Push rod assembly; 31. Base; 311. Groove; 32. Push rod; 4. Operating handle; 5. Reset member; 6. Length adjustment member; 61. Adjustment plate; 611. Limiting slot; 7. Driving member. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-4 This application is described in further detail.

[0043] A meniscus suture device disclosed in the embodiment of the present application, referring to Figure 1 and Figure 2A meniscus suture device includes a housing 1, a movable hole 11 is provided on the housing 1, an operating handle 4 is provided in the movable hole 11, the operating handle 4 is in a long strip shape, and the operating handle 4 is partially located inside the housing 1 and partially located outside the housing 1, so that the doctor can hold and operate it. A push rod assembly 3 is also provided in the housing 1, and the push rod assembly 3 is correspondingly connected to a delivery assembly 2, the delivery assembly 2 partially extends out of the housing 1, and the delivery assembly 2 is used to push the fixed object to the suture position.

[0044] Reference Figure 2 Specifically, a boss 12 is fixed in the housing 1, and the middle part of the operating handle 4 is sleeved on the boss 12, and one end of the operating handle 4 is in contact with the push rod assembly 3, and the other end is held by the doctor. The doctor pushes the push rod assembly 3 by holding and rotating the operating handle 4. Under the push of the operating handle 4, the push rod assembly 3 drives the delivery assembly 2 to deliver the fixed object to the suture site, thereby achieving the suture of the meniscus.

[0045] Reference Figure 2 The push rod assembly 3 includes a base 31 and a push rod 32. The base 31 is arranged in the housing 1. One end of the push rod 32 is fixed on the base 31, and the other end extends out of the housing 1. Specifically, a sliding track 15 is fixed to the inner wall of the housing 1. The extension direction of the sliding track 15 is parallel to the axial direction of the push rod 32. The base 31 is partially inserted into the sliding track 15 and can slide along the sliding track 15. A groove 311 is provided on the base 31. One end of the operating handle 4 abuts against the inner wall of the groove 311. When the doctor holds the operating handle 4 tightly, the end of the operating handle 4 abutting against the base 31 can be driven to rotate, thereby driving the base 31 to slide along the sliding track 15, and then driving the push rod 32 to move out of the housing 1.

[0046] Reference Figure 2 The housing 1 is also provided with a clearance hole 16. The delivery assembly 2 includes a sleeve 21 and an access rod 22. The sleeve 21 is located in the clearance hole 16 and can slide in the clearance hole 16. The clearance hole 16 can limit the sliding trajectory of the sleeve 21 to be consistent with the axial direction of the push rod 32. A fixture is installed in the access rod 22, and the delivery of the fixture can be achieved through the push rod 32. Specifically, the sleeve 21 is sleeved outside the access rod 22, and the access rod 22 is set at the end of the sleeve 21 away from the housing 1. The end of the push rod 32 away from the base 31 is inserted into the sleeve 21. When the push rod 32 moves toward the outside of the housing 1 under the drive of the operating handle 4, it can push the fixture in the access rod 22 to achieve delivery. As for how the push rod 32 can achieve the delivery of the fixture, the existing meniscus suture device can already achieve this, which is the prior art, and the structure in the sleeve 21 will not be described in detail here.

[0047] Reference Figure 2 and Figure 3The meniscus suture device of the present application is provided with a plurality of delivery components 2, and a plurality of push rod components 3 arranged one by one corresponding to the delivery components 2. The operating handle 4 can control the movement of each push rod component 3 in turn, thereby achieving the delivery and suturing of multiple groups of fixed objects and improving the efficiency of the operation. The present application is described by taking the setting of two delivery components 2 as an example. In other embodiments, other numbers of delivery components 2 can also be provided according to the needs and the conditions of the internal space of the shell 1. Specifically, the space provided in the movable hole 11 can be provided for the movement of the operating handle 4, and the operating handle 4 can slide along the boss 12. A limiting ring 121 is also fixedly sleeved on the boss 12. The limiting ring 121 is interference fit with the operating handle 4, so that the operating handle 4 can slide along the boss 12 only when the doctor applies force.

[0048] Reference Figure 2 The operating handle 4 moves on the boss 12 to achieve that the operating handle 4 abuts against the two push rod assemblies 3 in turn, thereby driving the two push rod assemblies 3 to move respectively, and then the fixed objects in the two delivery assemblies 2 are delivered to the suture site, completing two sutures and improving the operation efficiency.

[0049] Reference Figure 4 Specifically, a reset member 5 is also provided in the shell 1, and the reset member 5 includes a plurality of elastic recovery members. Two of them are provided in the embodiment of the present application, and the two elastic recovery members are respectively connected to the two bases 31. The elastic recovery member can specifically be a tension spring, and the end of the elastic recovery member away from the base 31 is fixedly connected to the shell 1; when one of the push rod assemblies 3 moves under the drive of the operating handle 4 and delivers a fixed object in a delivery assembly 2 to the suture site, the push rod assembly 3 can move to the original position under the action of the elastic recovery force of the elastic recovery member, and while resetting, the push rod assembly 3 drives the operating handle 4 that is against the base 31 to reset.

[0050] Reference Figure 2 The grooves 311 of the two bases 31 are connected after the two push rod assemblies 3 are reset. After the fixture in one delivery assembly 2 is sutured to the surgical site, the delivery assembly 2 is restored under the action of the elastic recovery member, and the grooves 311 of the two bases 31 are connected. At this time, the doctor pushes the operating handle 4 so that one end of the operating handle 4 abuts against the other base 31, and then uses the operating handle 4 to drive the other delivery assembly 2 to deliver another set of fixtures to the suture site, thereby completing two sutures and improving surgical efficiency.

[0051] Reference Figure 2 and Figure 3, a length adjusting member 6 is also fixed on the sleeve 21, and a clamping member 13 is fixed on the inner wall of the housing 1 at a position close to the clearance hole 16. The clamping member 13 is provided with a plurality of clamping grooves 131 spaced apart along the length direction of the access rod 22, and the length adjusting member 6 can be clamped in different clamping grooves 131. A limiting block 14 is fixed on the inner wall of the housing 1, and a long slot 141 is provided on the limiting block 14. The extension direction of the long slot 141 is perpendicular to the extension direction of the access rod 22. An adjusting plate 61 is provided below the length adjusting member 6, and a limiting slot 611 is provided on the adjusting plate 61. The length adjusting member 6 slides and is clamped in the limiting slot 611, and the adjusting plate 61 is inserted and fixed in the long slot 141; a driving member 7 is fixed above the length adjusting member 6, and the driving member 7 protrudes from the housing 1, and an operating hole 17 for the driving member 7 to move is provided on the housing 1.

[0052] Reference Figure 2 and Figure 3 The setting of the access rod 22 allows one end of the access rod 22 to extend out of the sleeve 21. Before suturing the meniscus, the end of the access rod 22 extending out of the sleeve 21 needs to be inserted into the suture site. The length adjustment member 6 is set to adjust the position of the sleeve 21, thereby adjusting the length of the access rod 22 extending out of the sleeve 21, and then adjusting the depth of the access rod 22 inserted into the patient's suture site, so as to facilitate the doctor to sew more accurately and efficiently. Specifically, the part of the length adjustment member 6 inserted into the slot 131 is made of elastic material. The doctor pushes the driving member 7 to make the length adjustment member 6 snap into different slots 131. At this time, the length adjustment member 6 slides along the limit groove 611, thereby driving the sleeve 21 to move.

[0053] The implementation principle of a meniscus suture device in an embodiment of the present application is as follows: the meniscus suture device of the present application is provided with a plurality of push rod assemblies 3 and a plurality of delivery assemblies 2 in a shell 1, which can realize multiple suturing of a meniscus suture device, improve the surgical efficiency, reduce the number of meniscus suture devices used during surgery, and reduce waste; a reset assembly is provided in the shell 1 to realize the multiple suturing function of the meniscus suture device; a length adjustment member 6 is provided to realize the movement of the position of the sleeve 21, and then adjust the depth of the end of the access rod 22 extending into the suture site, so as to facilitate the doctor to perform the surgical operation.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A meniscus suture device, comprising a housing (1), characterized in that: Also includes: A plurality of delivery components (2) extending from the inside of the shell (1) to the outside of the shell (1), and each of the delivery components (2) is used to deliver a set of fixatives to a suture site; A plurality of push rod assemblies (3) are arranged in the housing (1), the plurality of push rod assemblies (3) being respectively connected to the plurality of delivery assemblies (2) in a one-to-one correspondence, and being used to drive the delivery assemblies (2) to push the fixed object; An operating handle (4) abuts against the push rod assembly (3) and is used to drive each push rod assembly (3) to move; A reset member (5) is connected to the push rod assembly (3) and is used to reset the push rod assembly (3) and the operating handle (4).

2. A meniscus suture device according to claim 1, characterized in that: The operating handle (4) is partially located inside the shell (1) and partially located outside the shell (1), and a movable hole (11) for the operating handle (4) to move is provided on the shell (1). When the operating handle (4) is driven to be located at different positions of the movable hole (11), the operating handle (4) abuts against different push rod assemblies (3) respectively.

3. A meniscus suture device according to claim 2, characterized in that: A convex column (12) is fixed inside the housing (1), and the operating handle (4) is sleeved on the convex column (12); A limit ring (121) is fixed on the boss (12), and the limit ring (121) is interference-fitted with the operating handle (4).

4. A meniscus suture device according to claim 1, characterized in that: The restoring member (5) comprises a plurality of elastic restoring members arranged in one-to-one correspondence with the push rod assemblies (3), one end of the elastic restoring member being fixedly connected to the housing (1) and the other end being fixedly connected to the push rod assembly (3).

5. A meniscus suture device according to claim 1, characterized in that: The push rod assembly (3) comprises a base (31), the base (31) is provided with a groove (311), and when the operating handle (4) drives the push rod assembly (3) to move, the operating handle (4) abuts against the inner wall of the groove (311); After the plurality of push rod assemblies (3) are reset, the grooves (311) of the plurality of bases (31) are connected.

6. A meniscus suture device according to claim 5, characterized in that: The push rod assembly (3) further comprises a push rod (32), wherein the push rod (32) is fixed to the base (31), and the push rod (32) extends outward from the housing (1); The delivery assembly (2) comprises a sleeve (21) and an access rod (22), wherein the sleeve (21) is slidably connected to the housing (1), a portion of the access rod (22) is inserted into the sleeve (21) from an end of the sleeve (21) away from the housing (1), and a fixture is installed in the access rod (22); The end of the push rod (32) away from the base (31) is inserted into the sleeve (21) from the end of the sleeve (21) close to the housing (1), and is used to push the fixed object for delivery.

7. A meniscus suture device according to claim 6, characterized in that: A clamping piece (13) is fixed to the inner wall of the housing (1), and a plurality of clamping grooves (131) are provided on the clamping piece (13) at intervals along the axial direction of the access rod (22); The clamping member (13) is abutted against a length adjusting member (6), the length adjusting member (6) is fixed to the sleeve (21), and the length adjusting member (6) can be clamped in different clamping slots (131).

8. A meniscus suture device according to claim 7, characterized in that: A limit block (14) is disposed in the housing (1), a long slot (141) is provided on the limit block (14), an adjustment plate (61) for the push rod (32) to pass through is fixedly inserted in the long slot (141), a limit slot (611) is provided on the adjustment plate (61), and the length adjustment member (6) slides and is clamped in the limit slot (611); A driving member (7) protruding from the housing (1) is fixed to the length adjusting member (6), and the driving member (7) is used to drive the length adjusting member (6) to move along the long slot (141) and to enable the length adjusting member (6) to be engaged in different slots (131).

Images