Auxiliary knotting device used after endoscopic suturing

Abstract

The utility model discloses an auxiliary knotting device used after suturing under an endoscope, and relates to the technical field of auxiliary devices used after suturing under the endoscope. The utility model provides an auxiliary knotting device after suturing under an endoscope, which comprises a connecting piece used for being connected with a connecting end of a suture line; one end of the puncture needle is connected with the connecting piece, the other end of the puncture needle is a free end, and the free end of the puncture needle is used for being inserted into the inner wall of the uterus so that the connecting end of the suture line can be fixed to the inner wall of the uterus. The technical problem that knotting operation in the uterus is inconvenient in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of post-endoscopic suturing auxiliary devices, in particular to a post-endoscopic suturing auxiliary knotting device. Background Art

[0002] Adenomyosis is a common female reproductive system disease characterized by the invasion of endometrial glands and stroma into the myometrium, leading to cyclical proliferation, exfoliation and bleeding.

[0003] Placing LNG-IUS in the uterine cavity is a major way to treat adenomyosis. However, because patients with adenomyosis usually have significantly enlarged uteri and heavy bleeding, if the treatment ring is placed directly in the uterus, the treatment ring may slip, so the treatment ring needs to be fixed. The commonly used technical means is to sew the treatment ring into the uterine cavity with non-absorbable sutures under hysteroscopy to assist in fixing the treatment ring. However, the space under hysteroscopy is small, which makes it inconvenient to tie the thread. The existing method is usually to pull the tail thread out of the vagina to tie the knot, and then push the knot into the uterus with a knot pusher. However, it usually takes two knots to stabilize the thread knot. When the latter knot is pushed by the knot pusher, the position of the previous knot may move backward, which makes it easy to loosen the knot and the knotting effect is poor. It may also be difficult to push the knot. If a barbed wire is used, the barbed wire needs to be made of non-absorbable material due to the long retention time of the treatment ring, but the non-absorbable barbed wire is expensive. Utility Model Content

[0004] The main purpose of the utility model is to provide an auxiliary knotting device after endoscopic suturing, aiming to solve the technical problem of inconvenient knotting operation in the uterus in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides an auxiliary knotting device after endoscopic suturing, including a connecting piece for connecting to the connecting end of a suture; a puncture needle, one end of which is connected to the connecting piece and the other end is a free end, and the free end of the puncture needle is used to insert into the inner wall of the uterus so as to fix the connecting end of the suture to the inner wall of the uterus.

[0006] Optionally, when the connecting piece is fixed to the inner wall of the uterus through the puncture needle, the connecting end of the suture is located on one side of the suture, and the connecting piece can be removed from the inner wall of the uterus from the other side of the suture to guide the connecting end to be tied around the suture.

[0007] Optionally, the connecting member has a through hole, and the through hole is used for the suture to pass through. After the connecting end of the suture passes through the through hole, it forms a limiting structure with the through hole.

[0008] Optionally, a limiting hole is provided at one end of the through hole close to the puncture needle, and the inner diameter of the limiting hole is larger than the inner diameter of the through hole.

[0009] Optionally, a guide member is further included, and the guide member can pass through the through hole to guide the connecting end of the suture thread to pass through the through hole.

[0010] Optionally, a connecting ring is provided at one end of the guide member, and the connecting ring is used to be connected to the connecting end of the suture thread, and the outer diameter of the connecting ring is smaller than the inner diameter of the through hole.

[0011] Optionally, a handle is provided at the other end of the guide member, and the outer diameter of the handle is larger than the inner diameter of the through hole.

[0012] Optionally, one end of the through hole passes through an outer wall of the connector at one end away from the puncture needle, and the other end of the through hole passes through a side wall of the connector.

[0013] Optionally, the outer wall of the connecting piece is provided with two opposite clamping surfaces, and the two clamping surfaces are parallel to each other.

[0014] Optionally, one end of the connecting piece away from the puncture needle is an arc-shaped surface.

[0015] Beneficial effects that can be achieved by the utility model:

[0016] An endoscopic post-suturing auxiliary knotting device proposed in an embodiment of the utility model is provided with a connecting piece and a puncture needle. The connecting piece is used to connect with the connecting end of the suture. When the puncture needle is inserted into the inner wall of the uterus, it can fix the connecting piece, thereby achieving a fixing effect on the first end of the suture. At this time, the connecting end of the suture is located on one side of the suture, and the suture overlaps an annular space. At this time, the operator reaches into the annular space from the inside of the instrument to clamp the connecting piece, removes the connecting piece from the inner wall of the uterus, and makes the connecting end of the suture pass through the annular space from the other side of the suture. Repeating the above operation can perform multiple knotting, so that the suture can be knotted in the uterus without tying knots outside the uterus, thereby reducing the situation where the position of the previous knot retreats when the latter knot is pushed by the knot pusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first structural schematic diagram of the auxiliary knotting device of an embodiment of the utility model;

[0018] Figure 2 A second structural schematic diagram of the auxiliary knotting device according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of a cross-sectional top view of the connecting member of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of a first state of the auxiliary knotting device of an embodiment of the utility model when in use;

[0021] Figure 5 This is a schematic diagram of a second state of the auxiliary knotting device of an embodiment of the utility model when in use;

[0022] Figure 6 This is a schematic diagram of the third state of the auxiliary knotting device of the embodiment of the utility model when in use.

[0023] In the figure: 10 - connecting piece, 11 - clamping surface, 20 - puncture needle, 30 - through hole, 40 - limiting hole, 50 - suture, 60 - guide piece, 61 - connecting ring, 62 - handle, 70 - treatment ring.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] Example 1

[0030] Reference Figure 1-Figure 6 The first embodiment of the present invention provides an auxiliary knotting device after endoscopic suturing, comprising a connector 10 and a puncture needle 20. The connector 10 is used to connect with the connecting end of the suture 50; one end of the puncture needle 20 is connected to the connector 10, and the other end of the puncture needle 20 is a free end, and the free end of the puncture needle 20 is used to be inserted into the inner wall of the uterus, so as to fix the connecting end of the suture 50 to the inner wall of the uterus.

[0031] In this embodiment, the connector 10 is cylindrical in shape, one end of the puncture needle 20 is connected to the connector 10, and the connection between the puncture needle 20 and the connector 10 can be threaded or bonded, and the free end of the puncture needle 20 has a puncture slope to facilitate the insertion of the puncture needle 20 into the inner wall of the uterus. In the process of fixing the treatment ring 70, the suture 50 is first guided through the suture needle to pass through the tissue of the inner wall of the uterus, and then the treatment ring 70 is fixed to the suture 50 by knotting and binding. When fixing the treatment ring 70, the connection end of the suture 50 is pulled out of the body, and then the suture needle is removed from the connection end in vitro, and the connection end of the suture needle is connected to the connector 10, and a pulling force is applied to the other end of the suture needle (located outside the body) to allow the treatment ring 70 and the connector 10 to enter the uterus. When assisting in knotting the suture 50, the puncture needle 20 is inserted into the inner wall of the uterus to fix the connecting end of the suture 50. Usually, when knotting the same rope, it is necessary to control the two ends of the rope separately to facilitate knotting the rope. However, due to the limited space in the uterus, it is not possible to directly knot the rope with both hands in the uterus. The connecting end of the suture 50 is fixed by the connector 10, which is convenient for the operator to repeatedly remove it from the inner wall of the uterus and insert it into the inner wall of the uterus in different directions, so that the knot can be tied with one hand, which improves the convenience of knotting for the operator. For ease of understanding, the length of the puncture needle 20 can be 3-5mm, preferably 3mm, and the length of the connector 10 along the axial direction can be 3-5mm, preferably 3mm.

[0032] Example 2

[0033] As an optional embodiment, refer to Figure 3 and Figure 6 This embodiment provides a specific structure of a connector 10, including: when the connector 10 is fixed to the inner wall of the uterus through the puncture needle 20, the connecting end of the suture 50 is located on one side of the suture 50, and the connector 10 can be removed from the inner wall of the uterus from the other side of the suture 50 to guide the connecting end to be tied around the suture 50.

[0034] In this embodiment, when the auxiliary knotting device is in use, the treatment ring 70 is fixed to one side of the suture 50 close to the connection end, and the other end of the suture 50 opposite to the connection end is located outside the body. The connector 10 is inserted into the inner wall of the uterus through the puncture needle 20. At this time, the connection end of the suture 50 is inserted into the inner wall of the uterus from above the suture 50. The free end of the suture 50 overlaps with the suture 50 to form an annular space (its state is as shown in FIG. Figure 4Then the operator inserts the clamping instrument into the annular space to clamp the connecting piece 10, removes the connecting piece 10 from the inner wall of the uterus, and then guides the connecting end of the suture 50 from the bottom of the suture 50 into the annular space (its state is as shown in FIG. Figure 5 As shown), it moves from bottom to top in the annular space and moves to the top of the suture line 50 (its state is as shown in FIG. Figure 6 As shown in the figure, the above operation is then repeated to achieve the knotting of the connecting end of the suture 50 and the suture 50. During the entire knotting operation, the operator only needs to operate the connecting piece 10 with one hand to guide the movement of the connecting end of the suture 50. After the knotting is completed, the two ends of the suture 50 at the knotting position can be cut off.

[0035] Example 3

[0036] As an optional embodiment, refer to Figure 1 and Figure 2 This embodiment provides a connection structure between a connector 10 and a suture 50, including: the connector 10 has a through hole 30, the through hole 30 is for the suture 50 to pass through, and the connecting end of the suture 50 passes through the through hole 30 to form a limiting structure with the through hole 30.

[0037] Optionally, a limiting hole 40 is provided at one end of the through hole 30 close to the puncture needle 20 , and the inner diameter of the limiting hole 40 is larger than the inner diameter of the through hole 30 .

[0038] In this embodiment, after the connecting end of the suture 50 passes through the through hole 30, a limiting structure can be formed with the through hole 30 by tying a limiting knot. The size of the limiting knot is larger than the inner diameter of the limiting hole 40, so that the limiting knot will not pass through the through hole 30, thereby realizing the connection between the suture 50 and the connector 10. As another optional method, after the connecting end of the suture 50 passes through the through hole 30, it can be tied with the puncture needle 20 to realize the connection between the connecting end of the suture 50 and the connector 10. At this time, the through hole 30 plays a role in limiting and fixing the suture 50. As another optional method, after the connecting end of the suture 50 passes through the through hole 30, a limiting member whose size is larger than the inner diameter of the limiting hole 40 can be tied. By setting a limiting hole 40 at the end of the through hole 30, the limiting hole 40 can be used to accommodate a limiting knot or a limiting member, so that the limiting knot and the limiting member are located in the limiting hole 40, thereby reducing the possibility that the free end of the suture 50 moves randomly when the limiting knot and the limiting member are outside the connecting member 10, and the suture 50 exposed in the through hole 30 affects the operator's operation.

[0039] Example 4

[0040] As an optional embodiment, refer to Figure 1-Figure 3This embodiment provides a specific structure for guiding the movement of the suture thread 50 , including: further including a guide member 60 , the guide member 60 can penetrate the through hole 30 to guide the connecting end of the suture thread 50 to penetrate the through hole 30 .

[0041] Optionally, a connecting ring 61 is provided at one end of the guide member 60 , and the connecting ring 61 is used to be connected to the connecting end of the suture thread 50 , and the outer diameter of the connecting ring 61 is smaller than the inner diameter of the through hole 30 .

[0042] Optionally, a handle 62 is provided at the other end of the guide member 60 , and the outer diameter of the handle 62 is greater than the inner diameter of the through hole 30 .

[0043] In this embodiment, by providing a guide 60, the guide 60 can be a steel wire, the guide 60 has a certain elasticity, and can move along the extension direction of the through hole 30. After the guide 60 passes through the through hole 30, it can be connected with the connecting end of the suture 50, and then the guide 60 withdraws from the through hole 30 to guide the suture 50 to pass through the through hole 30, thereby improving the threading efficiency of the suture 50. By providing a connecting ring 61 at one end of the guide 60, it is convenient to fix the connecting end of the suture 50 on the connecting ring 61 by binding and knotting. By providing a handle 62 at the other end of the guide 60, the handle 62 can form a limiting structure with the through hole 30 to prevent the guide 60 from slipping out of the through hole 30, so that the operator can control the movement of the guide 60 by operating the handle 62 to guide the connecting end of the suture 50 to pass through the through hole 30.

[0044] Example 5

[0045] As an optional embodiment, refer to Figure 1-Figure 3 This embodiment provides a specific structure of a connector 10 , including: one end of a through hole 30 passes through an outer wall of the connector 10 away from the puncture needle 20 , and the other end of the through hole 30 passes through a side wall of the connector 10 .

[0046] Optionally, the outer wall of the connecting member 10 is provided with two opposite clamping surfaces 11 , and the two clamping surfaces 11 are symmetrically arranged.

[0047] Optionally, one end of the connecting member 10 away from the puncture needle 20 is an arc-shaped surface.

[0048] In this embodiment, two clamping surfaces 11 are provided on the outer wall of the connector 10 to increase the contact area when the operator clamps the connector 10 through an instrument, thereby improving the stability of the clamping. By providing an arc-shaped surface at one end of the connector 10 away from the puncture needle 20, the probability of interference between the connector 10 and the suture 50 is reduced when the operator guides the connection end of the suture 50 through the connector 10.

[0049] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An auxiliary knotting device after endoscopic suturing, characterized in that: include: A connector, used to connect to a connecting end of a suture; A puncture needle, one end of which is connected to the connecting piece and the other end of which is a free end, is used to insert the free end of the puncture needle into the inner wall of the uterus so as to fix the connecting end of the suture thread to the inner wall of the uterus.

2. The endoscopic post-suturing auxiliary knotting device according to claim 1, characterized in that: When the connector is fixed to the inner wall of the uterus through the puncture needle, the connecting end of the suture is located on one side of the suture, and the connector can be removed from the inner wall of the uterus from the other side of the suture to guide the connecting end to be tied around the suture.

3. The endoscopic post-suturing auxiliary knotting device according to claim 1, characterized in that: The connecting piece has a through hole, and the through hole is used for the suture to pass through. After the connecting end of the suture passes through the through hole, it forms a limiting structure with the through hole.

4. The endoscopic post-suturing auxiliary knotting device according to claim 3, characterized in that: A limiting hole is arranged at one end of the through hole close to the puncture needle, and the inner diameter of the limiting hole is larger than the inner diameter of the through hole.

5. The endoscopic post-suturing auxiliary knotting device according to claim 3, characterized in that: A guide is also included, and the guide can pass through the through hole to guide the connecting end of the suture to pass through the through hole.

6. The endoscopic post-suturing auxiliary knotting device according to claim 5, characterized in that: A connecting ring is provided at one end of the guide member, and the connecting ring is used to be connected to the connecting end of the suture thread, and the outer diameter of the connecting ring is smaller than the inner diameter of the through hole.

7. The endoscopic post-suturing auxiliary knotting device according to claim 5, characterized in that: A handle is provided at the other end of the guide, and the outer diameter of the handle is greater than the inner diameter of the through hole.

8. The endoscopic post-suturing auxiliary knotting device according to claim 3, characterized in that: One end of the through hole penetrates through an outer wall of the connecting piece at one end away from the puncture needle, and the other end of the through hole penetrates through a side wall of the connecting piece.

9. The endoscopic post-suturing auxiliary knotting device according to claim 1, characterized in that: The outer wall of the connecting piece is provided with two opposite clamping surfaces, and the two clamping surfaces are parallel to each other.

10. The endoscopic post-suturing auxiliary knotting device according to claim 1, characterized in that: One end of the connecting piece away from the puncture needle is an arc-shaped surface.

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