CN216417244U

CN216417244U - Sacrospinous ligament stitching instrument

Info

Publication number: CN216417244U
Application number: CN202122637385.0U
Authority: CN
Inventors: 郭亮生; 郑丽君; 朱维培; 任琼珍
Original assignee: Second Affiliated Hospital of Soochow University
Current assignee: Second Affiliated Hospital of Soochow University
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-03
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a sacrospinous ligament stitching instrument, include: the inner side of the far end of the first clamp arm is provided with an upright post; the second clamp arm is crossed and hinged with the first clamp arm, a through hole matched with the upright post is formed in the far end of the second clamp arm, and the upright post penetrates through the through hole when the first clamp arm and the second clamp arm are in a closed state; the conical head is detachably connected to the free end of the stand column, the bottom of the conical head is in a shell shape with an opening, the inner wall of the conical head is provided with a coil tying ring used for connecting a suture line, the tip of the conical head faces to the through hole, the conical head has elastic deformation capacity, and the conical head is extruded by the wall of the through hole when penetrating through the through hole and elastically contracts and restores to the original shape after penetrating through the through hole. The stitching instrument can extend into sacrospinous ligament in the deep part of a pelvic cavity, can be stitched in place, and is very convenient for a doctor to operate.

Description

Sacrospinous ligament stitching instrument

Technical Field

The utility model relates to an instrument for pelvic floor operation, in particular to a sacrospinous ligament stitching instrument.

Background

Pelvic organ prolapse is a common disease of middle-aged and elderly women, and tends to continue to rise with aging population. At present, the transvaginal sacrospinous ligament fixation is an important method for correcting the defect of the middle pelvic cavity, and has the advantages of small wound and positive effect. Because the sacrospinous ligament is deep in position and difficult to expose, the sewing technology is difficult, in the operation of sacrospinous ligament fixation surgery, how to sew the sacrospinous ligament simply, conveniently, safely and effectively is a key point of the surgery, and the surgical instrument is very important for facilitating the surgical operation. The sacrospinous ligament fixation needs to suture and fix the vagina or cervix and the sacrospinous ligament, but the sacrospinous ligament is not easy to expose in the deep part of the pelvic cavity, the conventional suture needle is difficult to suture in place, and the needle is more difficult to take out after the needle is inserted, thereby bringing inconvenience to the operation of an operator.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem of the prior art, the utility model provides a sacrospinous ligament stitching instrument, include:

the inner side of the far end of the first clamp arm is provided with an upright post;

the second clamp arm is crossed and hinged with the first clamp arm, a through hole matched with the upright column is formed in the far end of the second clamp arm, and the upright column penetrates through the through hole when the first clamp arm and the second clamp arm are in a closed state; and

the cone, the cone can be dismantled the free end of connection at the stand, and the cone is that the bottom has open-ended shell form, and the inner wall of cone is equipped with the system coil that is used for connecting the stylolite, and the point portion of cone is facing to the through-hole, and the cone has elastic deformation ability, makes the cone receive the wall extrusion of through-hole and elasticity shrink and resume the original state after the cone passes the through-hole when passing the through-hole.

The beneficial effects of the embodiment are as follows: in use, the suture thread is threaded through the tie coil or the thread end is tied and fastened on the tie coil. The distal end of the first forceps arm cooperates with the distal end of the second forceps arm to grasp tissue to be sutured. When the first and second clamp arms are forced to rotate relative to each other by external force, the conical head can take the suture to penetrate through tissues to be sutured. In the process of passing through the through hole, the conical surface is elastically contracted by being squeezed by the hole wall, the conical head is expanded and restored after passing through the through hole, the conical head cannot reversely pass through the through hole, then the jaw is opened, the stand column is separated from the conical head, and the suturing instrument is taken out to bring out the suturing thread.

In some embodiments, the through-hole is a tapered hole having a cross-section that decreases from the inner side of the second jawarm in a direction toward the outer side.

In some embodiments, the bore inner diameter of the through bore at the outer side of the second jawarm is less than the maximum outer diameter of the conical head in an undeformed state.

In some embodiments, the conical surface of the conical head is provided with a notch extending along the generatrix direction thereof. The conical head of the present embodiment further has elastic deformability.

In some embodiments, the material of the conical head is stainless steel, plastic or memory metal.

In some embodiments, the proximal ends of the first and second jawarms are each provided with a finger loop for finger manipulation. The surgeon may insert the fingers into the finger loop and operate the stapler with a single hand.

In some embodiments, the cone head is removably attached to the free end of the post.

In some embodiments, the tapered head is snapped onto the free end of the post.

Drawings

Fig. 1 is a perspective view of a sacrospinous ligament suture instrument according to an embodiment of the present invention.

Fig. 2 is an enlarged view of the cone of the sacrospinous ligament suture device according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is an exploded view of fig. 3.

Description of the symbols:

first tong arm 1, second tong arm 2, stand 3, through-hole 4, cone 5, breach 6, tie coil 7, indicate circle 8, spliced pole 9, mounting hole 10

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, according to an embodiment of the present disclosure, a sacrospinous ligament suture includes a first jawarm 1 and a second jawarm 2 crossing and hinged to the first jawarm 1. The inner side of the far end of the first clamp arm 1 is provided with an upright post 3, and the far end of the second clamp arm 2 is provided with a through hole 4 matched with the upright post 3. One end of the upright post 3 can be welded and fixed at the inner side of the far end of the first clamp arm 1. The relative positions and sizes of the post 3 and the through hole 4 are configured such that the post 3 can pass through the through hole 4 when the jawarms are closed.

Referring to fig. 1 and 2, the sacrospinous ligament suture further includes a tapered head 5 removably attached to the free end of the post 3. The conical head 5 is a conical shell with an opening at the bottom, opposite the bottom is a tip opposite the through hole 4, which is sufficiently sharp to be able to penetrate the sacrospinous ligament, while the tip is also sufficiently blunt to prevent scoring of the tissue around the suture site of the tape.

The conical head 5 is configured to have an elastic deformation capability such that the conical head 5 is elastically contracted by being pressed by the wall of the through-hole 4 when passing through the through-hole 4 and is restored after the conical head 5 passes through the through-hole 4. For example, in terms of material selection, the conical head 5 may be made of medical stainless steel, memory metal or plastic; structurally, referring to fig. 2-4, the tapered surface of the tapered head 5 is provided with a notch 6 extending along the generatrix direction thereof, so that the tapered head 5 has elastic deformation capability when being pressed by the inner wall of the through hole 4.

Referring to fig. 3 and 4, the inner wall of the conical head 5 is provided with a tie coil 7 for attaching a suture. The tie coil 7 is in the shape of a closed loop, which may be welded or integrally formed on the inner wall of the cone head 5. In applying the suture instrument of the present embodiment, the suture thread may be formed into a double strand through the tying loop 7, or may be tied and fastened to the tying loop 7.

When the sacrospinous ligament is sutured using the stapler, the distal end of the first forceps arm 1 cooperates with the distal end of the second forceps arm 2 to clamp tissue to be sutured. When an external force is applied to force the first and second forceps arms 1 and 2 to rotate relatively in the closing direction, the conical head 5 carries the suture thread to penetrate the tissue to be sutured. In the process of passing through the through hole 4, the conical surface is elastically contracted by being pressed by the hole wall, and the conical head 5 is expanded to restore the original shape after passing through the through hole 4. The surgeon opens the jaws to separate the tapered head 5 from the post 3, whereupon the suture has passed through the tissue, and removes the stapler and carries the suture along.

In some embodiments, referring to fig. 1, the through hole 4 is a tapered hole with a cross section decreasing from the inner side of the second clamp arm 2 to the outer side. Further, the inner diameter of the aperture of the through hole 4 at the outer side of the second jawarm 2 is smaller than the maximum outer diameter of the conical head 5 in the undeformed state. The through bore 4 is configured such that the inner diameter of the aperture only in the vicinity of the outside of the second jawarm 2 is less than the maximum outer diameter of the conical head 5, while the inner diameter of the majority of the area of the conical through bore 4 is greater than the outer diameter of the conical portion. When the conical head 5 passes through the through hole 4, friction is not generated between the conical head 5 and most of the inner wall of the through hole 4, the conical head 5 is only extruded at the outer hole, and the resistance of the conical head 5 passing through the through hole 4 is reduced.

In some embodiments, referring to fig. 1, the proximal ends of the first and second jawarms 1, 2 are each provided with a finger ring 8 for finger manipulation. The surgeon may insert a finger into the finger loop 8 to operate the stapler with a single hand.

In some embodiments, the cone head 5 is provided with a connection post 9 having a mounting hole 10 therein, the mounting hole 10 receives a free end of the upright 3, and the upright 3 is snap-fitted to the connection post 9. Specifically, the outer wall of the column 3 is provided with a convex portion (not shown) and the inner wall of the mounting hole 10 is provided with a concave portion (not shown), or the outer wall of the column 3 is provided with a concave portion (not shown) and the inner wall of the mounting hole 10 is provided with a convex portion (not shown), and the convex portion and the concave portion are engaged with each other. Upon closing the jaws, the conical head 5 penetrates the tissue to be sutured. After penetrating the tissue and passing through the through hole 4, the jaws are opened by force, so that the second forceps arm 2 applies a pushing force to the conical head 5, the convex part is separated from the concave part, and the upright 3 is separated from the conical head 5. After the jaws are fully opened, the conical head 5 is still positioned outside the through hole 4, and the doctor takes out the suture together when taking out the stitching instrument.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. A sacrospinous ligament stapler, comprising:

the second clamp arm is crossed and hinged with the first clamp arm, a through hole matched with the upright post is formed in the far end of the second clamp arm, and the upright post penetrates through the through hole when the first clamp arm and the second clamp arm are in a closed state; and

the conical head, conical head detachably connects the free end of stand, the conical head is that the bottom has the open-ended shelly, the inner wall of conical head is equipped with the system coil that is used for connecting the stylolite, the point portion of conical head is facing to the through-hole, the conical head has elastic deformation ability, makes the conical head is in passing receive during the through-hole the wall extrusion of through-hole and elasticity shrink and be in the conical head passes reconversion behind the through-hole.

2. The sacrospinous ligament suture of claim 1, wherein the through-hole is a tapered hole having a cross-section that decreases from the medial side of the second jawarm in a lateral direction.

3. The sacrospinous ligament suture of claim 2, wherein an inner diameter of the aperture of the through-hole at the outer side of the second forceps arm is less than a maximum outer diameter of the conical head in an undeformed state.

4. The sacrospinous ligament suture of claim 1, wherein the tapered surface of the tapered head is provided with a notch extending along a generatrix thereof.

5. The sacrospinous ligament suture of claim 1, wherein the material of the tapered head is stainless steel, plastic, or memory metal.

6. The sacrospinous ligament suture of claim 1, wherein the proximal ends of the first and second forceps arms are each provided with a finger loop for finger manipulation.

7. The sacrospinous ligament suture of claim 1, wherein the tapered head snaps onto a free end of the post.