Novel rotator cuff sewing gun

Abstract

A novel rotator cuff sewing gun comprises a gun barrel (1) and a threading upper jaw (2), a threading hole (3) is formed in the gun barrel (1), a sewing groove (4) is formed in the head of the gun barrel (1), an elastic piece (5) is arranged at the bottom of the sewing groove (4), a threading cavity is formed in the threading upper jaw (2), and the threading upper jaw (2) is installed at the head of the gun barrel (1). The suture line is driven to penetrate through the rotator cuff tissue from the upper portion through the upper threading jaw, the situation that a line pushing needle of a traditional rotator cuff suture gun is broken is avoided, and the surgical risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, specifically to a novel shoulder cuff suture gun. Background Technology

[0002] Currently, the rotator cuff is an important structure of the soft tissues near the shoulder joint. It's called the rotator cuff because it acts like a sleeve around the shoulder joint, allowing for free movement; therefore, the rotator cuff always maintains high tension. Due to this high tension, once the rotator cuff is damaged, it becomes a tear rather than a fissure, making it difficult to heal on its own. With normal shoulder joint activity, this tear will widen, so arthroscopic rotator cuff repair surgery is necessary as soon as possible for rotator cuff injuries. Existing rotator cuff repair instruments include rotator cuff repair guns, rotator cuff repair hooks, and rotator cuff repair trowels, among others. The rotator cuff repair gun is undoubtedly the simplest, fastest, and most convenient tool. However, the suture pusher inside the rotator cuff repair gun is prone to breakage during suturing, increasing surgical risks; furthermore, the suture pusher is a disposable consumable, significantly increasing surgical costs. Therefore, we have designed a new type of rotator cuff repair gun that retains the advantages of traditional repair guns while solving the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a novel shoulder and sleeve sewing gun.

[0004] This utility model includes a gun barrel and a threaded jaw.

[0005] The barrel has a threading hole, the barrel head has a stitching groove, the bottom of the stitching groove has a shrapnel, the threading jaw has a threading chamber, the threading jaw is installed on the barrel head, the threading chamber is connected to the threading hole, and the upper jaw is driven to rotate upward or downward by a rotary drive mechanism. When the upper jaw rotates downward, it penetrates the shoulder sleeve, pushes open the shrapnel, and sends out the stitching thread.

[0006] The barrel has a push rod hole, and a gear push rod is installed in the push rod hole. The breech of the barrel is equipped with a scissor push mechanism, which is formed by hinged finger ring fixing part and finger ring moving part. The top of the finger ring fixing part is equipped with a sleeve, and the breech of the barrel is installed in the sleeve. The top of the finger ring moving part has a threading hole and a push rod groove. One end of the gear push rod is movably installed in the push rod groove, and the other end of the gear push rod is equipped with a rack. The bottom of the threading jaw is equipped with a gear that meshes with the rack. The finger ring moving part moves back and forth in the push rod hole through the gear push rod. The rack drives the gear to rotate forward or backward, causing the threading jaw to rotate upward or downward.

[0007] One end of the gear push rod has a rotation limit groove, and a pin is provided in the push rod groove of the finger ring movable part. The pin is located in the rotation limit groove.

[0008] The top of the barrel has a pusher groove that connects to the wire hole.

[0009] The piercing upper jaw is a hook-shaped piercing upper jaw with a piercing oblique opening at its head.

[0010] A wire guard spring is installed at the connection between the wire inlet at the tail of the threading jaw and the threading hole.

[0011] The bottom of the suture groove has a threading opening, and one end of the spring is installed at the bottom of the suture groove on one side of the threading opening, with the spring covering the threading opening.

[0012] The bottom of the suture groove is provided with a closed protrusion, and a sealed groove is opened on the closed protrusion. The end of the spring is provided with a serrated protrusion, and the end of the spring is located in the sealed groove.

[0013] The end of the suture groove is provided with serrated anti-slip protrusions.

[0014] The threaded jaw is movably mounted on the head of the barrel via a pin.

[0015] The advantages of this utility model are:

[0016] 1. By using the palate to guide the suture from above, the suture penetrates the rotator cuff tissue, avoiding the breakage of the push needle in traditional rotator cuff suture guns and reducing surgical risks.

[0017] 2. Compared to traditional rotator cuff suture guns, it does not require the use of disposable suture pushers, thus reducing surgical costs.

[0018] 3. It retains the usage habits of similar rotator cuff sewing guns. Compared with instruments such as rotator cuff sewing hooks and rotator cuff punches, which require more experience in rotator cuff sewing, this new sewing gun is easier for beginners to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is a utility model Figure 2 A partially enlarged structural diagram.

[0022] Figure 4 This is a schematic diagram of the closed protrusion of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, if terms such as "first" or "second" appear in the description of this invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0028] As shown in the attached diagram, this utility model includes a barrel 1 and a threaded jaw 2.

[0029] The barrel 1 has a threading hole 3 inside, and a sewing groove 4 is provided at the head of the barrel 1. A shrapnel 5 is provided at the bottom of the sewing groove 4. The threading jaw 2 has a threading chamber inside. The threading jaw 2 is installed at the head of the barrel 1. The threading chamber is connected to the threading hole 3. The jaw 2 is rotated upward or downward by a rotation drive mechanism. When the jaw 2 rotates downward, it penetrates the shoulder sleeve, pushes open the shrapnel 5, and sends out the sewing thread.

[0030] The barrel 1 has a push rod hole, and a gear push rod 6 is installed in the push rod hole. The tail of the barrel 1 is equipped with a scissor push mechanism, which is formed by hinged finger ring fixing part 7 and finger ring movable part 8. The top of the finger ring fixing part 7 is equipped with a sleeve 11, and the tail of the barrel 1 is installed in the sleeve 11. The top of the finger ring movable part 8 has a threading hole and a push rod groove. One end of the gear push rod 6 is movably installed in the push rod groove, and the other end of the gear push rod 6 is equipped with a rack 9. The bottom of the threading jaw 2 is equipped with a gear 10 that meshes with the rack 9. The finger ring movable part 8 moves back and forth in the push rod hole through the gear push rod 6. The rack 9 drives the gear 10 to rotate forward or backward, causing the threading jaw 2 to rotate upward or downward.

[0031] One end of the gear push rod 6 has a rotation limiting groove, and a pin is provided in the push rod groove of the finger ring movable part 8. The pin is located in the rotation limiting groove. When the finger ring movable part 8 opens or closes, one end of the gear push rod 6 can rotate slightly around the pin in the push rod groove, so that the gear push rod 6 maintains linear motion in the wire hole 3.

[0032] The top of the barrel 1 has a push groove 12 that communicates with the wire hole 3.

[0033] The upper palatal 2 is a hook-shaped upper palatal 2, and the head of the upper palatal 2 is provided with a puncture oblique opening.

[0034] A wire guard spring 13 is provided at the connection between the tail inlet of the threading jaw 2 and the threading hole 3.

[0035] The bottom of the suture groove 4 has a threading opening, and one end of the spring piece 5 is installed at the bottom of the suture groove 4 on one side of the threading opening, with the spring piece 5 covering the threading opening.

[0036] The bottom of the suture groove 4 is provided with a closing protrusion 15, and a sealing groove is opened on the closing protrusion 15. The end of the spring piece 5 is provided with a serrated protrusion, and the end of the spring piece 5 is located in the sealing groove.

[0037] The end of the stitching groove 4 is provided with a serrated anti-slip protrusion 14.

[0038] The threaded jaw 2 is movably mounted on the head of the barrel 1 via a pin. Example

[0039] 1. The suture is inserted through the threading hole at the top of the finger ring movable part 8, passes through the sleeve 11, the threading hole 3 and the suture guard spring 13 in sequence, and finally enters the threading chamber of the upper palate 2 and extends out. When threading, medical staff can place their fingers in the push groove 12 to help push the suture and make the suture continuously forward.

[0040] 2. Open the finger ring fixing part 7 and the finger ring movable part 8. The gear push rod 6 drives the rack 9 to move backward, and the rack 9 drives the gear 10 to rotate. The threading jaw 2 opens upward. Place the rotator cuff part to be sutured between the threading jaw 2 and the suture groove 4. Pinch the finger ring fixing part 7 and the finger ring movable part 8. The gear push rod 6 drives the rack 9 to move forward, and the rack 9 drives the gear 10 to rotate. The threading jaw 2 closes downward. The rotator cuff is penetrated through the puncture oblique opening at the head of the threading jaw 2. The threading jaw 2 pushes open the spring 5 to send out the suture. Open the finger ring fixing part 7 and the finger ring movable part 8 so that the threading jaw 2 opens upward. The spring 5 automatically closes and locks the suture. The suture is taken out of the body at the same time as the suture gun is withdrawn. The rotator cuff suturing operation is completed in one go.

Claims

1. A novel shoulder sleeve sewing gun, characterized in that... It includes a barrel (1) and a threaded jaw (2), The barrel (1) has a threading hole (3) inside, and a sewing groove (4) is provided at the head of the barrel (1). A shrapnel (5) is provided at the bottom of the sewing groove (4). A threading chamber is provided inside the threading upper jaw (2). The threading upper jaw (2) is installed at the head of the barrel (1). The threading chamber is connected to the threading hole (3). The upper jaw (2) is rotated upward or downward by a rotation drive mechanism. When the upper jaw (2) rotates downward, it penetrates the shoulder sleeve and pushes open the shrapnel (5) to send out the sewing thread.

2. The novel shoulder sleeve sewing gun according to claim 1, characterized in that, A push rod hole is opened in the barrel (1), and a gear push rod (6) is installed in the push rod hole. A scissor push mechanism is installed at the tail of the barrel (1). The scissor push mechanism is formed by hinged finger ring fixing part (7) and finger ring movable part (8). A sleeve (11) is installed at the top of the finger ring fixing part (7). The tail of the barrel (1) is installed in the sleeve (11). A threading hole and a push rod groove are opened at the top of the finger ring movable part (8). One end of the gear push rod (6) is movably installed in the push rod groove. A rack (9) is installed at the other end of the gear push rod (6). A gear (10) that meshes with the rack (9) is installed at the bottom of the threading jaw (2). The finger ring movable part (8) moves back and forth in the push rod hole through the gear push rod (6). The rack (9) drives the gear (10) to rotate forward or backward, so that the threading jaw (2) rotates upward or downward.

3. The novel shoulder sleeve sewing gun according to claim 2, characterized in that, One end of the gear push rod (6) has a rotation limiting groove, and a pin is provided in the push rod groove of the finger ring movable part (8), with the pin located in the rotation limiting groove.

4. The novel shoulder sleeve sewing gun according to claim 3, characterized in that, The top of the barrel (1) has a push groove (12) that communicates with the wire hole (3).

5. A novel shoulder sleeve sewing gun according to claim 4, characterized in that, The upper palatine (2) is a hook-shaped upper palatine, and the head of the upper palatine (2) is provided with a puncture oblique opening.

6. A novel shoulder sleeve sewing gun according to claim 5, characterized in that, A wire guard spring (13) is provided at the connection between the tail inlet of the threading jaw (2) and the threading hole (3).

7. A novel shoulder sleeve sewing gun according to claim 6, characterized in that, The bottom of the suture groove (4) has a threading opening. One end of the spring piece (5) is installed at the bottom of the suture groove (4) on one side of the threading opening, and the spring piece (5) covers the threading opening.

8. A novel shoulder sleeve sewing gun according to claim 7, characterized in that, The bottom of the suture groove (4) is provided with a closed protrusion (15), and a sealed groove is opened on the closed protrusion (15). The end of the spring piece (5) is provided with a serrated protrusion, and the end of the spring piece (5) is located in the sealed groove.

9. A novel shoulder sleeve sewing gun according to claim 8, characterized in that, The end of the suture groove (4) is provided with a serrated anti-slip protrusion (14).

10. A novel shoulder sleeve sewing gun according to claim 1, characterized in that, The threaded jaw (2) is mounted on the head of the barrel (1) via a pin.

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