A threading device for deep surgical suturing and an operating method thereof

Abstract

A threading device for deep surgical suturing and an operating method thereof, the device comprises a long rod, a fixed clamp head and a movable clamp head at the front end of the long rod, handles 1 and 2 at the rear end of the long rod, and a push-pull rod connected to the movable clamp head, the handles 1 and 2 can push and pull the push-pull rod to enable the movable clamp head to open and close, the movable clamp head is provided with a puncture needle for fixing the knot of the surgical thread, a wire pulling device is provided inside the push-pull rod, the head of the wire pulling device can accommodate the puncture needle and the knot of the surgical thread, and can tighten and clamp the knot of the surgical thread. The beneficial effects of the present invention are: 1) The knot of the surgical thread is provided to pass through the tissue together with the puncture needle, and the surgical thread will not loosen from the puncture needle because it is stuck by the knotted puncture needle; 2) The opposite side of the tissue is supported by a fixed clamp head, which saves effort, is accurate in direction, and almost does not cause stretching to the tissue; 3) After puncture, the knot of the surgical thread is directly sent to the wire pulling device, and no additional search is required, which makes wire pulling convenient.

Description

Technical Field

[0001] The invention relates to a surgical instrument, in particular to a threading device for deep surgical suturing and an operating method thereof. Background Art

[0002] Deep surgical suturing requires small space and difficult operation, and requires special threading or knotting instruments.

[0003] Traditional surgical methods use a suture needle to penetrate tissue during threading operations, use an instrument to clamp the suture needle with thread to penetrate tissue, or use an instrument to clamp the suture needle and surgical thread to penetrate tissue after threading a suture needle without thread.

[0004] In order to make the operation more convenient, people have improved the instrument to pass the surgical thread through the hole on the puncture needle of the instrument, and use the instrument to penetrate the tissue. CN101449989A discloses a laparoscopic suture knotter, which has a suture needle with a needle hole for the entry and exit of the suture; CN209847262U discloses a knotter for deep surgery, including a threading device and a hooking device, and the puncture device is provided with a puncture head, and the puncture head is provided with a puncture hole.

[0005] The above improvements still have the problem of threading being loose due to loose threading. In addition, it is a one-way puncture, which is more laborious, inaccurate in direction and may cause tensile damage to the tissue. After puncture, it is still inconvenient to use pliers or a wire hook device to find the thread end. Summary of the invention

[0006] The purpose of the present invention is to provide a threading device for deep surgical suturing and an operating method thereof, wherein the thread head does not loosen during the threading process and the tissue is hardly stretched during the puncture process.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A threading device for deep surgical suturing comprises a long rod, a fixed clamp head and a movable clamp head at the front end of the long rod, handle 1 and handle 2 at the rear end of the long rod, and a push-pull rod connected to the movable clamp head, wherein the handle 1 and / or the handle 2 can push and pull the push-pull rod to enable the movable clamp head to achieve opening and closing movements, the movable clamp head is provided with a puncture needle for fixing a surgical thread knot, a wire pulling device is provided inside the push-pull rod, the head of the wire pulling device can accommodate the puncture needle and the surgical thread knot, and can tighten and clamp the surgical thread knot.

[0009] The puncture needle is a stepped needle.

[0010] The puncture needle is a cone with a wire hole or a wire groove arranged in the middle.

[0011] The wire pulling device is a surgical wire with a slipknot at the head section.

[0012] The wire pulling device is a long rod, and the head end of the long rod is a metal ring with a gap.

[0013] The wire pulling device is a long rod, and the head end of the long rod is a clamp head.

[0014] The puncture needle can be folded on the movable clamp head.

[0015] A method for operating a threading device for deep surgical suturing, specifically comprising:

[0016] 1) Opening: Move the push-pull rod by using handle 1 (4) and / or handle 2 (5) to lift the movable clamp head;

[0017] 2) Hanging thread: fix the front end of the surgical thread to the puncture needle;

[0018] 3) Vertical needle: tighten the surgical thread and the puncture needle is erected;

[0019] 4) Puncture: Move the push-pull rod by handle 1 and / or handle 2 to drive the movable clamp head to close, and the puncture needle with the surgical thread penetrates the tissue and sends the thread end into the front end of the wire pulling device;

[0020] 5) Clamping: Pull the wire pulling device backwards, and the front end of the wire pulling device will be bound and closed after reaching the opening of the push-pull rod, and the wire head will be clamped, the surgical thread will be released, and the puncture needle will be folded;

[0021] 6) Pull the wire: Continue to pull the wire pulling device backward until the wire end is pulled out of the device;

[0022] 7) Withdrawal of the device: Clamp the surgical thread and gently pull out the device to complete threading.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) The surgical thread is set with a knot and passes through the tissue together with the puncture needle. Since the surgical thread is stuck by the knotted puncture needle, it will not loosen from the puncture needle;

[0025] 2) The opposite side of the tissue is supported by a fixed clamp head, which saves effort, is accurate in direction, and hardly causes stretching to the tissue;

[0026] 3) After puncture, the knot of the surgical thread is directly sent to the wire pulling device, without the need for additional searching, making wire pulling convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the expansion of the device of the present invention;

[0028] Figure 2 It is a closed schematic diagram of the device of the present invention;

[0029] Figure 3 It is a schematic diagram of the linkage parts when the device of the present invention is opened;

[0030] Figure 4 It is a schematic diagram of the linkage parts when the device of the present invention is closed;

[0031] Figure 5 It is a schematic diagram of a stepped needle;

[0032] Figure 6 A schematic diagram of a vertebral cross section with a central hole;

[0033] Figure 7 A schematic diagram of a cone for setting a wire groove;

[0034] Figure 8 This is a schematic diagram of the surgical line with a slipknot at the head section;

[0035] Fig. 9 It is a schematic diagram of a long rod with a metal ring at the head end;

[0036] Fig.10 Schematic diagram of a long rod with a clamp head at the head end.

[0037] Fig.11 This is a schematic diagram of the puncture needle folding.

[0038] Fig.12 Schematic diagram of the puncture needle erection.

[0039] In the figure: 1-long rod, 2-fixed clamp head, 3-movable clamp head, 4-handle one, 5-handle two, 6-push-pull rod, 7-puncture needle, 8-wire pulling device, 9-surgical line. DETAILED DESCRIPTION

[0040] The present invention is described in detail below in conjunction with the accompanying drawings, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0041] like Figure 1 , Figure 2 As shown, a threading device for deep surgical suturing comprises a long rod 1, a fixed clamp head 2 and a movable clamp head 3 at the front end of the long rod 1, a handle 1 4 and a handle 2 5 at the rear end of the long rod 1, and a push-pull rod 6 connected to the movable clamp head 3, wherein the handle 1 4 and / or the handle 2 5 can push and pull the push-pull rod 6 to enable the movable clamp head 3 to achieve opening and closing movements, the movable clamp head 3 is provided with a puncture needle 7 for fixing a surgical thread knot, a wire pulling device 8 is provided inside the push-pull rod 6, and the head of the wire pulling device 8 can accommodate the puncture needle 7 and the surgical thread knot, and can tighten and clamp the surgical thread knot.

[0042] The puncture needle 7 can be a stepped needle (see Figure 5 ) can also be a cone with a wire hole in the middle (see Figure 6 ) or set the cone of the wire trough (see Figure 7 ).

[0043] The wire pulling device 8 can be a surgical wire with a slipknot at the head section (see Figure 8 ).

[0044] The wire pulling device 8 can also be a long rod, and the end of the long rod is a metal ring with a gap (see Fig. 9 ); or the wire pulling device 8 is an elongated rod, the elongated rod head end is a clamp head (see Fig.10 ).

[0045] like Figure 3 , Figure 4 As shown, one end of the handle 4 is hinged to the long rod 1 and is connected to the push-pull rod 6 through a hinged connecting rod. The push-pull rod 6 is inserted into the long rod 1 and can slide back and forth along the long rod 1. By opening and closing the handle 4, the push-pull rod 6 is pushed and pulled, thereby driving the movable pliers head 3 to rise and fall. There is a hinge fulcrum between the movable pliers head 3 and the long rod 1.

[0046] The wire pulling device 8 is inside the push-pull rod 6 and can slide back and forth inside the push-pull rod 6. The end of the wire pulling device 8 extends from the end of the handle 2 5 for easy manual pulling. When the end of the wire pulling device 8 is pulled, the head of the wire pulling device 8 is pulled into the push-pull rod 6, so that the surgical line slipknot or metal ring or clamp head at the head of the wire pulling device 8 is clamped.

[0047] The operation process of the device is as follows:

[0048] 1) Opening: When handle 1 4 and / or handle 2 5 are opened, the push-pull rod 6 moves forward, driving the movable clamp head 3 to lift up. Figure 1 , Figure 3 ;

[0049] 2) Hanging the thread: tie a knot at the front end of the surgical thread 9 or use a tool (such as a hot pressing tool) to press out a knot, and fix the knot to the puncture needle 7;

[0050] 3) Vertical needle: When performing puncture, the surgical thread 9 is tightened and the puncture needle 7 is erected;

[0051] 4) Puncture: Close handle 1 4 and / or handle 2 5, push and pull rod 6 moves backward, driving movable clamp head 3 to close, puncture needle 7 with surgical thread 9 penetrates tissue, and sends the thread end to the front end of thread pulling device 8, see Figure 2 , Figure 4 ;

[0052] 5) Clamping: Pull the wire pulling device 8 backwards, and the front end of the wire pulling device 8 reaches the opening of the push-pull rod 6 and is bound and closed to clamp the wire end, loosen the surgical thread 9, and the puncture needle 7 is automatically folded;

[0053] 6) Pull the wire: Continue to pull the wire pulling device 8 backward until the wire end is pulled out of the device;

[0054] 7) Withdrawal of the device: Clamp the surgical thread and gently pull out the device to complete threading.

[0055] like Fig.11 , Fig.12 As shown (for the convenience of illustration, some parts are shown with dotted lines), the puncture needle 7 is normally in a folded state, and an L-shaped spring sheet can be provided, one of which is fixed to the puncture needle 7 or the movable clamp head 3, and the puncture needle 7 is folded under the action of the spring sheet, and the folding degree can be controlled by the position of the rivet; when the surgical line 9 is tightened, the puncture needle 7 is erected, and the L-shaped spring sheet is compressed into a U shape; when the surgical line 9 is loosened, the L-shaped spring sheet returns to its original shape, and the puncture needle 7 is automatically folded. The puncture needle 7 can also be automatically folded in other forms, such as installing a magnet at an appropriate position.

[0056] The function of handle 1 4 and handle 2 5 is to be held in hand and realize the forward and backward movement of push-pull rod 6. Figure 3 , Figure 4 (For the sake of convenience, some parts are shown with dotted lines.) Figure 1 The structure, shape, position, and tilt angle shown, for example, handle 1 4 and handle 2 5 can be made movable, handle 1 4 can be made into a trigger, and the movable pliers head 3 and the push-pull rod 6 can be connected by rivets.

Claims

1. A threading device for deep surgical suturing, characterized in that: The invention comprises a long rod (1), a fixed clamp head (2) and a movable clamp head (3) at the front end of the long rod (1), a handle 1 (4) and a handle 2 (5) at the rear end of the long rod (1), and a push-pull rod (6) connected to the movable clamp head (3); the handle 1 (4) and / or the handle 2 (5) can push and pull the push-pull rod (6) to enable the movable clamp head (3) to achieve opening and closing movements; the movable clamp head (3) is provided with a puncture needle (7) for fixing a surgical thread knot; the puncture needle (7) can be folded on the movable clamp head (3); a wire pulling device (8) is provided inside the push-pull rod (6); the head of the wire pulling device (8) can accommodate the puncture needle (7) and the surgical thread knot, and can tighten and clamp the surgical thread knot; One end of the handle (4) is hinged to the long rod (1) and is connected to the push-pull rod (6) through a hinged connecting rod. The push-pull rod (6) is inserted into the long rod (1) and can slide back and forth along the long rod (1). By opening and closing the handle (4), the push-pull rod (6) is pushed and pulled, thereby driving the movable clamp head (3) to be lifted and lowered. There is a hinge fulcrum between the movable clamp head (3) and the long rod (1); The wire pulling device (8) is inside the push-pull rod (6) and can slide back and forth inside the push-pull rod (6). The end of the wire pulling device (8) extends from the end of the second handle (5). When the end of the wire pulling device (8) is pulled, the head of the wire pulling device (8) is pulled into the push-pull rod (6), thereby tightening the surgical line slipknot or metal ring or clamp head at the head of the wire pulling device (8).

2. A threading device for deep surgical suturing according to claim 1, characterized in that: The puncture needle (7) is a stepped needle.

3. A threading device for deep surgical suturing according to claim 1, characterized in that: The puncture needle (7) is a cone with a wire hole or a wire groove arranged in the middle.

4. A threading device for deep surgical suturing according to claim 1, characterized in that: The wire pulling device (8) is a surgical wire with a slipknot at the head section.

5. A threading device for deep surgical suturing according to claim 1, characterized in that: The wire pulling device (8) is a long rod, and the head end of the long rod is a metal ring with a gap.

6. A threading device for deep surgical suturing according to claim 1, characterized in that: The wire pulling device (8) is a long rod, and the end of the long rod is a clamp head.

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