Hysteroscopic suturing device

Abstract

The present invention relates to the field of medical devices, and specifically to a hysteroscopic suturing device, comprising a sleeve with one end that can be inserted into a hysteroscopic operating hole, a suture needle and a hooking thread mechanism being arranged in the inner cavity at one end of the sleeve, the suture needle and the hooking thread mechanism being driven by a driving mechanism to move axially along the inner cavity of the sleeve, and when the driving mechanism drives the suture needle to extend out of the inner cavity of the sleeve and pierce into the sutured part, the hooking thread mechanism hooks out the suture thread on the suture needle. The present invention directly inserts the suture needle and the hooking thread mechanism into the hysteroscopic operating hole, which can avoid completing the suture operation under laparoscopy, not only reducing the patient's pain, but also facilitating the doctor's surgical operation. At the same time, the hooking thread mechanism of the present invention can quickly hook out the suture thread when the suture needle pierces into the sutured part, and its operation is simple, which further facilitates the doctor's suture operation.

Description

Technical Field

[0001] The invention relates to a medical device, in particular to a hysteroscopic suturing device. Background Art

[0002] At present, hysteroscopy is the main means of treating intrauterine diseases. Existing hysteroscopy can perform resection, electroresection, electrocoagulation hemostasis and other operations, but because the hysteroscope is operated with one hand and has only one operating hole, hysteroscopic suturing cannot be performed, resulting in some operations that can be performed under hysteroscopy, such as suture repair of incision healing defects, can only be completed under laparoscopy, increasing the trauma of patients. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a hysteroscopic suturing device which is simple and convenient to operate.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a hysteroscopic suturing device, including a tube sleeve at one end which can be extended into the operating hole of the hysteroscope, and a suture needle and a hook thread mechanism are arranged in the inner cavity of one end of the tube sleeve, and the suture needle and the hook thread mechanism are driven by a driving mechanism to move axially along the inner cavity of the tube sleeve. When the driving mechanism drives the suture needle to extend out of the inner cavity of the tube sleeve and pierce into the suture site, the hook thread mechanism hooks out the suture thread threaded on the suture needle.

[0005] Preferably, the driving mechanism includes a rubber plug arranged in the inner cavity of the tube sleeve and a push-pull rod driving the rubber plug to move axially along the inner cavity of the tube sleeve, the rubber plug is fixedly connected to the axially arranged suture needle, and the hook wire mechanism connected to the rubber plug is arranged on one side of the suture needle.

[0006] Preferably, a needle hole is provided at the end of the suture needle, and the suture thread arranged in the inner cavity of the sleeve passes through the needle hole.

[0007] Preferably, the thread hooking mechanism comprises a rotating wheel installed in the inner cavity of the tube sleeve and a wire hook driven by the rotating wheel to rotate and extend out of the inner cavity of the tube sleeve. When the rubber plug is pushed by the push-pull rod to drive the suture needle to extend out of the inner cavity of the tube sleeve and penetrate into the suture site, it drives the rotating wheel to rotate, and the rotating wheel drives the wire hook to hook the suture thread on the suture needle.

[0008] Preferably, the line hooking mechanism further comprises a connecting rod, one end of which is hinged to the end surface of the rubber plug, and the other end of which is hinged to the rotating wheel.

[0009] Preferably, a pin is radially fixed to the inner cavity of the sleeve, and the rotating wheel is mounted on the pin.

[0010] Preferably, two stop plates are arranged on the pin shaft at intervals, and the rotating wheel is installed between the two stop plates. When the rubber plug driving connecting rod drives the rotating wheel to rotate, the rotating wheel can move axially along the pin shaft section between the two stop plates.

[0011] Preferably, the wire hook is in an arc shape that is bent away from the side of the suture needle.

[0012] Preferably, one end of the wire hook is fixed on the rotating wheel, and the other end is provided with a hook head for hooking the suture thread on one side of the axial direction of the rotating wheel.

[0013] Preferably, the push-pull rod is connected to an operating handle extending out from the other end of the sleeve.

[0014] As can be seen from the above technical solutions, the present invention directly inserts a suture needle and a hooking mechanism into the hysteroscope operation hole, which can avoid completing the suture operation under laparoscopy, not only reducing the pain of the patient, but also facilitating the doctor's surgical operation. At the same time, the hooking mechanism of the present invention can quickly hook out the suture when the suture needle pierces the suture site, and its operation is simple, which further facilitates the doctor's suture operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention.

[0016] Figure 2 yes Figure 1 Schematic diagram of the partial three-dimensional structure of the center line hook. DETAILED DESCRIPTION

[0017] Combine the following Figure 1 and Figure 2 The present invention is described in detail. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0018] like Figure 1 The present invention provides a hysteroscopic suturing device, which includes a tube sleeve 1 with one end that can be extended into the operating hole of the hysteroscope, and a suture needle 2 and a hook thread mechanism 3 are arranged in the inner cavity of one end of the tube sleeve. The suture needle and the hook thread mechanism are driven by a driving mechanism 4 to move axially along the inner cavity of the tube sleeve. When the driving mechanism drives the suture needle to extend out of the inner cavity of the tube sleeve and penetrate into the suture site, the hook thread mechanism hooks out the suture thread 5 threaded on the suture needle. At this time, the suture thread is sewn on the flesh at the suture site, thereby completing the suture operation.

[0019] Specifically, the driving mechanism 4 includes a rubber plug 41 arranged in the inner cavity of the tube sleeve and a push-pull rod 42 that drives the rubber plug to move axially along the inner cavity of the tube sleeve. The push-pull rod is connected to an operating handle 43 extending from the other end of the tube sleeve. The push-pull rod is driven to move by pushing and pulling the operating handle, thereby driving the rubber plug to move. During the implementation process, the rubber plug is made of a flexible material and can be made into a piston form similar to a syringe to avoid damaging the tube sleeve. The axially arranged suture needle is fixedly connected to the rubber plug, so that the rubber plug drives the suture needle to move axially; the hooking mechanism connected to the rubber plug is arranged on one side of the suture needle, which also ensures that the rubber plug drives the hooking mechanism to move to hook the suture thread. Preferably, a needle hole 21 is arranged at the end of the suture needle, and the suture thread arranged in the inner cavity of the sleeve passes through the needle hole, so that the suture thread can be effectively controlled to ensure the smooth progress of the suture operation.

[0020] Preferably, the thread hooking mechanism 3 includes a rotating wheel 31 installed in the inner cavity of the tube sleeve and a thread hook 32 driven by the rotating wheel to rotate and extend out of the inner cavity of the tube sleeve. When the rubber plug is pushed by the push-pull rod to drive the suture needle to extend out of the inner cavity of the tube sleeve and penetrate into the sutured part, the rotating wheel drives the thread hook to hook the suture thread on the suture needle, thereby completing the suture. The thread hooking mechanism also includes a connecting rod 33, one end of which is hinged on the end surface of the rubber plug and the other end is hinged on the rotating wheel, so that the connecting rod drives the rotating wheel to rotate through the movement of the rubber plug. During the operation, the rubber plug is first pulled out by the push-pull rod to be located at the lowest position. At this time, the needle hole of the suture needle is located outside the tube sleeve, and the thread hook is farthest from the suture needle. Then the suture thread is passed through the needle hole and stored in the inner cavity of the tube sleeve; then the push-pull rod is pushed to gradually move the suture needle upward. At this time, the upward movement of the rubber plug pushes the connecting rod upward. During the upward movement, the connecting rod pushes the rotating wheel to rotate, and the rotating wheel drives the thread hook to gradually approach the suture needle. When the rubber plug drives the suture needle to penetrate into the suture site, the rubber plug is located at the uppermost end of the tube sleeve. At this time, the wire hook is close to the suture needle under the rotation of the rotating wheel, thereby hooking the suture thread; then, the rubber plug is gradually pulled out by the push-pull rod, and the suture needle gradually retracts into the inner cavity of the tube sleeve to exit the suture site. At the same time, the rubber plug drives the connecting rod to move downward, and the connecting rod drives the rotating wheel to rotate in the opposite direction. The wire hook hooked on the suture thread gradually moves away from the suture needle, thereby pulling the suture thread out to complete the suture operation.

[0021] During the implementation process, the inner cavity of the sleeve is radially fixed with a pin shaft 34, and the rotating wheel is installed on the pin shaft, so as to ensure that the rotating wheel rotates around the pin shaft under the driving action of the connecting rod. Preferably, two stopper plates are arranged on the pin shaft at intervals, and the rotating wheel is installed between the two stopper plates. When the rubber plug drives the connecting rod to drive the rotating wheel to rotate, the rotating wheel can move axially along the pin shaft section between the two stopper plates. Specifically, the connecting rod exerts a tangential force and an axial force on the rotating wheel during the movement, which can be achieved by simply tilting the connecting rod, that is, the connecting rod is not arranged in the plane where the rotating wheel is located. Due to the existence of the tangential force and the axial force, it is ensured that the connecting rod can move along the axial direction of the pin shaft when driving the rotating wheel to rotate, so that when the suture needle is located at the lowermost end, the rotating wheel is located at the outermost side. When the suture needle gradually moves up, the rotating wheel drives the wire hook to approach the suture line on the left and right sides, and extends from the outside to the inside into the space between the suture line and the suture needle, so as to ensure that the wire hook hooks the suture line when the suture line is located at the uppermost end, and ensure the smooth completion of the suture operation. Therefore, we designed that one end of the wire hook is fixed on the rotating wheel to ensure that the wire hook rotates with the rotating wheel; and the other end of the hook wire is provided with a hook head 321 that can hook the suture thread on one side of the axial direction of the rotating wheel, that is, the hook head is provided on the inner side of the wire hook, ensuring that the hook head extends from the outside to the inside into the space between the suture thread and the suture needle. Preferably, the wire hook is in an arc shape that is bent away from the side of the suture needle, which can avoid interference between the wire hook and the tissue at the suture site when the suture needle moves, and further ensure the smooth suture.

Claims

1. A hysteroscopic suturing device, comprising a sleeve with one end being extendable into an operating hole of a hysteroscope, characterized in that: The inner cavity at one end of the sleeve is provided with a suturing needle and a thread hooking mechanism, which are driven by a driving mechanism to move axially along the inner cavity of the sleeve. When the driving mechanism drives the suturing needle to extend out of the inner cavity of the sleeve and pierce into the sutured part, the thread hooking mechanism hooks out the suture thread on the suturing needle; the thread hooking mechanism includes a rotating wheel installed in the inner cavity of the sleeve and a thread hook driven by the rotating wheel to rotate and extend out of the inner cavity of the sleeve. When the rubber plug is pushed by the push-pull rod to drive the suturing needle to extend out of the inner cavity of the sleeve and pierce into the sutured part The rotating wheel is driven to rotate, and the rotating wheel drives the thread hook to hook the suture thread on the suture needle; the thread hooking mechanism also includes a connecting rod, one end of which is hinged on the end surface of the rubber plug, and the other end is hinged on the rotating wheel; a pin is radially fixed to the inner cavity of the tube sleeve, and the rotating wheel is installed on the pin; two stop plates are arranged on the pin at intervals, and the rotating wheel is installed between the two stop plates. When the rubber plug drives the connecting rod to drive the rotating wheel to rotate, the rotating wheel can move axially along the pin section between the two stop plates.

2. The hysteroscopic suturing device according to claim 1, characterized in that: The driving mechanism includes a rubber plug arranged in the inner cavity of the tube sleeve and a push-pull rod driving the rubber plug to move axially along the inner cavity of the tube sleeve. The rubber plug is fixedly connected to the axially arranged suture needle, and the hook wire mechanism connected to the rubber plug is arranged on one side of the suture needle.

3. The hysteroscopic suturing device according to claim 2, characterized in that: The end of the suture needle is provided with a needle hole, and the suture thread arranged in the inner cavity of the tube sleeve passes through the needle hole.

4. The hysteroscopic suturing device according to claim 1, characterized in that: The wire hook is in an arc shape that is bent away from the side of the suture needle.

5. The hysteroscopic suturing device according to claim 4, characterized in that: One end of the wire hook is fixed on the rotating wheel, and the other end is provided with a hook head capable of hooking the suture wire on one side of the axial direction of the rotating wheel.

6. The hysteroscopic suturing device according to claim 2, characterized in that: The push-pull rod is connected with an operating handle extending out from the other end of the pipe sleeve.

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