CN215839261U

CN215839261U - Tissue suturing device for minimally invasive surgery

Info

Publication number: CN215839261U
Application number: CN202121128846.5U
Authority: CN
Inventors: 徐兵; 汪华清; 肖强
Original assignee: Chengdu Second Peoples Hospital
Current assignee: Chengdu Second Peoples Hospital
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-02-18
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a tissue suturing device for minimally invasive surgery, which is used for solving the problem that the labor intensity of medical staff is high when the existing tissue suturing device for minimally invasive surgery is used, and comprises a suturing outer tube, wherein the suturing outer tube comprises an outer tube handle means and an outer tube suturing section which are mutually connected; the end parts of the inner core sewing section and the outer tube sewing section are both provided with inclined sewing end inclined planes.

Description

Tissue suturing device for minimally invasive surgery

Technical Field

The utility model belongs to the technical field of tissue suturing, and particularly relates to a tissue suturing device for minimally invasive surgery.

Background

Currently, when a tissue suturing device used clinically is used for suturing under a minimally invasive operation (such as meniscus suturing), the requirement on a suturing technology is particularly high due to the fact that the tissue is few. However, the existing suture device has the following problems in use:

1. the suturing device is not reusable, resulting in high costs.

2. When the suturing device is used, a suture line is easy to cut off, and the operation precision requirement on a part with few tissues (such as meniscus suturing) is particularly high, so that the labor intensity of medical staff is particularly high.

Disclosure of Invention

Based on the technical problems, the utility model provides a tissue suturing device for minimally invasive surgery, which has the characteristic of convenient wearing, solves the problem that medical staff cannot effectively protect when protective clothing is insufficient, and has the characteristic of low cost.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a tissue suturing device for minimally invasive surgery is characterized by comprising a suturing outer tube, wherein the suturing outer tube comprises an outer tube handle means and an outer tube suturing section which are connected with each other, a suturing inner core which is matched with the suturing outer tube and can slide in the suturing outer tube is sleeved in the suturing outer tube, the suturing inner core comprises an inner core handle means and an inner core suturing section which are connected with each other, the inner core handle means is matched with the outer tube handle section, the inner core suturing section is matched with the outer tube suturing section, and the hardness of the inner core suturing section is greater than that of the outer tube suturing section; the end parts of the inner core sewing section and the outer tube sewing section are both provided with inclined sewing end inclined planes.

In some embodiments, the suture end bevel of the inner core suture section is inclined at the same angle as the suture section bevel of the outer tube suture section.

In some embodiments, the suture end bevel of the outer tube suture section is provided with a suture gap.

In some embodiments, the edges of the suture gap are chamfered or filleted.

In some embodiments, the outer tube suture section is made of an elastic material.

In some embodiments, the end of the outer tube handle means is provided with a port for connection to an external negative pressure conduit.

In some embodiments, the inner wall of the outer pipe handle means is provided with at least one clamping groove arranged along the length direction of the outer pipe handle means, and the outer wall of the inner core handle means is provided with a clamping strip matched with the clamping groove.

In some embodiments, the outer wall of the inner core handle means is provided with at least one clamping groove arranged along the length direction of the inner core handle means, and the inner wall of the outer tube handle means is provided with a clamping strip matched with the clamping groove.

In some embodiments, the outer tube has a polygonal cross-section of the inner wall of the means.

The tissue suturing device for minimally invasive surgery, disclosed by the utility model, has the advantages that the suturing outer tube is hollow and is used for inserting the suturing inner core and penetrating a suturing thread; the inner core of sewing up is solid construction insertion and with sew up outer tube and mutually support for to sewing up the outer tube and providing the support when puncturing the tissue and sewing up, also be convenient for simultaneously sew up the outer tube of outer tube and sew up the section when changing the direction of sewing up, sew up the outer tube of outer tube and sew up the section and have sufficient intensity, and sew up the inner core and insert to sew up in the outer tube, when puncturing, also can place the soft tissue and imbed to sew up in the outer tube and make the threading difficult. In the using process, the suturing outer tube is utilized to directly puncture tissues (such as meniscus) to be sutured and directly puncture skin, then the suturing inner core is taken out, the suturing thread is led in from the suturing end inclined plane of the suturing outer tube, one end of the suturing thread is left outside the skin, the suturing outer tube is withdrawn to directly select a suturing point for puncture suturing, the suturing thread is positioned at a suturing gap of the suturing end inclined plane of the suturing outer tube, and the edge of the suturing gap is provided with a chamfer angle or a fillet angle, so the suturing thread cannot be cut off by the suturing end inclined plane of the suturing outer tube; after the inclined plane of the suture end punctures the skin, the suture line in the suture outer tube is pulled out, the suture outer tube is directly taken out, the two ends of the suture line are knotted and sutured outside the skin, and then the suture line outside the tissue is knotted to firmly fix the tissue.

In conclusion, due to the adoption of the technical scheme, the utility model has the beneficial effects that: on one hand, the problems that in a minimally invasive surgery, due to the fact that tissues are small (such as meniscus), suturing is not firm, and fixing anchors are easy to fall off are solved; on the other hand, the operation difficulty of medical staff is reduced, the suture line cannot be cut off, and the operation difficulty of the medical staff is further reduced.

Meanwhile, the suturing device can be fully utilized after being disinfected, and the manufacturing and using cost is reduced.

In the use process of the utility model, the suture inner core can prevent soft tissues from blocking the suture outer tube, improve the threading convenience of the suture, and simultaneously can absorb the suture by using external negative pressure to suck the suture into the suture outer tube.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the suture gap of the present invention;

FIG. 3 is a schematic structural diagram according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of an embodiment of the outer tube handle of the present invention;

FIG. 6 is a schematic cross-sectional view of an embodiment of the outer tube handle of the present invention;

the labels in the figure are: 1. the outer pipe is sewed, 11, an outer pipe handle means, 12, an outer pipe sewing section, 2, an inner core is sewed, 21, an inner core handle means, 22, an inner core sewing section, 3, a sewing end inclined plane, 4, a clamping groove, 5, a clamping strip, 6 and a sewing notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "both ends", "between", "middle", "lower", "upper", "lower", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 1, the tissue suturing device for minimally invasive surgery of the present invention comprises a suturing outer tube 1, wherein the suturing outer tube 1 comprises an outer tube handle means 11 and an outer tube suturing section 12, which are connected to each other, wherein the outer tube handle means 11 and the outer tube suturing section 12 may be an integral structure, or may be connected to each other to form an integral structure; the suture outer tube 1 is internally sleeved with a suture inner core 2 which is mutually matched with the suture outer tube 1 and can slide in the suture outer tube 1, the suture inner core 2 comprises an inner core handle means 21 and an inner core suture section 22 which are mutually connected, the inner core handle means 21 is mutually matched with the outer tube handle means 11, the inner core suture section 22 is mutually matched with the outer tube suture section 12, and the hardness of the inner core suture section 22 is greater than that of the outer tube suture section 12, so that the inner core suture section 22 can support the outer tube suture section 12 to facilitate the puncture of the outer tube suture section 12; the end parts of the inner core sewing section 22 and the outer tube sewing section 12 are both provided with an inclined sewing end bevel 3.

In some embodiments, the suture end bevel 3 of the inner core suture section 22 and the suture section bevel 3 of the outer tube suture section 12 are inclined at the same angle, so that when the inner core suture section 22 is inserted into the outer tube suture section 12, the suture end bevel 3 of the inner core suture section 22 and the suture section bevel 3 of the outer tube suture section 12 are just combined to form a bevel, when puncturing is performed, tissue (soft tissue) can be prevented from blocking the outer tube suture section 12, and normal passing of subsequent sutures can be guaranteed.

Referring to fig. 2, in some embodiments, the suture end bevel 3 of the suture section 12 of the outer tube is provided with a suture gap 6. In some embodiments, the edge of the suture gap 6 is chamfered or filleted so as to prevent the suture end bevel 3 from cutting off the suture, so as to ensure normal tissue suturing, and reduce the operation difficulty of medical personnel.

Because the outer tube sewing section 12 is of a tubular structure, the sewing end inclined plane 3 is formed by cutting the outer tube sewing section 12 by a cutter, and the sewing notch 6 is arranged at the obtuse angle of the sewing end inclined plane 3.

In some embodiments, the outer tubular suturing section 12 is made of a resilient material, thereby allowing the outer tubular suturing section 12 to flex to facilitate piercing and suturing tissue, such as changing the direction of suturing.

With reference to fig. 3 and 4, in some embodiments, the outer tube is provided with a connection port 13 at the end of the means 11, the connection port 13 is connected to an external negative pressure pipeline, when the suture thread is difficult to enter the suturing outer tube 1, the suture thread can be adsorbed by external negative pressure, so that the suture thread penetrates into the suturing outer tube 1, the difficulty of the suture thread penetrating into the suturing outer tube 1 is further reduced, and the labor intensity of medical staff is reduced.

In some embodiments, the end of the outer tube handle means 11 may also be provided with a clip interface, and the connection with an external negative pressure pipeline is realized through the clip interface, which is not described herein again.

With reference to fig. 3, in some embodiments, the inner wall of the outer tube handle means 11 is provided with at least one clamping groove 4 along the length direction of the outer tube handle means 11, the outer wall of the inner core handle means 21 is provided with a clamping strip 5 mutually matched with the clamping groove 4, and the clamping groove 4 and the clamping strip 5 are mutually matched, so that the suturing inner core 2 can be accurately inserted into the suturing outer tube 1, and when the suturing inner core 2 is inserted into the suturing outer tube 1, the suturing end inclined plane 3 of the inner core suturing section 22 is just flush with the suturing end inclined plane 3 of the outer tube suturing section 22 to form a complete inclined plane, thereby facilitating puncturing.

Referring to fig. 4, in some embodiments, at least one locking groove 4 is formed on the outer wall of the inner core handle means 21 along the length direction of the inner core handle means 21, and a locking strip 5 adapted to the locking groove 4 is formed on the inner wall of the outer tube handle means 11.

With reference to fig. 5 and 6, in some embodiments, the cross section of the inner wall of the outer tube handle means 11 is polygonal, that is, the cross section of the inner hole of the outer tube handle means 11 is polygonal. When the inner core 2 is inserted into the outer suturing tube 1, the inner core 2 will not rotate in the outer suturing tube 1, so that when the inner core 2 is inserted into the outer suturing tube 1, the suturing end inclined plane 3 of the inner core suturing section 22 is just flush with the suturing end inclined plane 3 of the outer suturing section 22 to form a complete inclined plane. Wherein, the polygon is a triangle, a quadrangle, a pentagon, a hexagon, etc. Wherein, the outer wall of the inner core stitching section 21 is matched with the inner wall of the outer tube handle means 11, for example, when the cross section of the inner wall of the outer tube handle means 11 is triangular, the cross section of the inner core handle means 21 is triangular, and when the cross section of the inner wall of the outer tube handle means 11 is quadrilateral, the cross section of the inner core handle means 21 is quadrilateral.

In some embodiments, the outer tube may also enclose the inner wall of the means 11 with an arcuate section and at least one straight section in cross-section.

In some embodiments, the outer tube suture section 12 and the inner core suture section 22 can be matched to realize the positioning between the suture outer tube 1 and the suture inner core 2. For example, the cross section of the inner wall of the outer tube suture section 12 is polygonal or the cross section of the inner wall of the outer tube suture section 12 is formed by enclosing an arc line segment and at least one straight line segment.

In some embodiments, the positioning and matching between the suture outer tube 1 and the suture inner core 2 can be achieved by the mutual matching of the outer tube suture section 12 and the inner core suture section 22 and the mutual matching of the outer tube handle means 11 and the inner core handle means 21, which can be understood and understood by those skilled in the art and will not be described herein.

The above is an embodiment of the present invention. The foregoing are preferred embodiments of the present invention, and the preferred embodiments in each preferred embodiment can be combined and used in any overlapping manner if not obviously contradictory or prerequisite to a certain preferred embodiment, and the specific parameters in the examples and the embodiments are only for the purpose of clearly showing the verification process of the utility model and not for the purpose of limiting the patent protection scope of the present invention, which is still subject to the claims and the equivalent structural changes made by the contents of the description and the drawings of the present invention are all included in the protection scope of the present invention.

Claims

1. The tissue suturing device for minimally invasive surgery is characterized by comprising a suturing outer tube (1), wherein the suturing outer tube (1) comprises an outer tube handle means (11) and an outer tube suturing section (12) which are connected with each other, a suturing inner core (2) which is matched with the suturing outer tube (1) and can slide in the suturing outer tube (1) is sleeved in the suturing outer tube (1), the suturing inner core (2) comprises an inner core handle means (21) and an inner core suturing section (22) which are connected with each other, the inner core handle means (21) is matched with the outer tube handle means (11), the inner core suturing section (22) is matched with the outer tube suturing section (12), and the hardness of the inner core suturing section (22) is greater than that of the outer tube suturing section (12); the end parts of the inner core sewing section (22) and the outer tube sewing section (12) are respectively provided with an inclined sewing end bevel (3).

2. The tissue suturing device for minimally invasive surgery according to claim 1, wherein the suture end bevel (3) of the inner core suture section (22) is inclined at the same angle as the suture section bevel (3) of the outer tube suture section (12).

3. The tissue suturing device for minimally invasive surgery according to claim 1, wherein a suturing gap (6) is formed at the suturing end inclined plane (3) of the outer tube suturing section (12).

4. The tissue suturing device for minimally invasive surgery as claimed in claim 3, characterized in that the edges of the suture gap (6) are chamfered or rounded.

5. The tissue suturing device for minimally invasive surgery as claimed in claim 1, wherein the outer tubular suturing section (12) is made of an elastic material.

6. The tissue suturing device for minimally invasive surgery according to claim 1, wherein an end of the outer tube handle means (11) is provided with a port (13) for connection with an external negative pressure conduit.

7. The tissue suturing device for minimally invasive surgery according to any one of claims 1-6, characterized in that the inner wall of the outer tube handle means (11) is provided with at least one clamping groove (4) arranged along the length direction of the outer tube handle means (11), and the outer wall of the inner core handle means (21) is provided with a clamping strip (5) mutually matched with the clamping groove (4).

8. The tissue suturing device for minimally invasive surgery according to any one of claims 1-6, characterized in that the outer wall of the inner core handle means (21) is provided with at least one clamping groove (4) arranged along the length direction of the inner core handle means (21), and the inner wall of the outer tube handle means (11) is provided with a clamping strip (5) mutually matched with the clamping groove (4).

9. The tissue suturing device for minimally invasive surgery as claimed in any one of claims 1 to 6, wherein the outer tube has a polygonal cross-section of the inner wall of the handle means (11).