CN219306800U

CN219306800U - Guiding structure of cutting suture device for endoscope

Info

Publication number: CN219306800U
Application number: CN202222541935.3U
Authority: CN
Inventors: 李凤卫; 陈应泰; 王梅
Original assignee: BEIJING AEROSPACE GENERAL HOSPITAL
Current assignee: BEIJING AEROSPACE GENERAL HOSPITAL
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-07-07
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a guiding structure of an incision stitching instrument for an endoscope, which comprises the following components: a guide portion for guiding a staple anvil of the cutting stapler through a narrow space of a lower wall of a blood vessel; a connection part with one end connected with the guide part and the other end detachably connected with the nail anvil; wherein, guide portion with the contained angle that is greater than 110 between the portion of plugging into. The guide structure of the cutting stitching instrument for the endoscope has the advantages of simple structure, easiness in manufacturing, adaptability to a narrow space, elimination of operation blind areas, safety and high efficiency in use, reduction of operation difficulty, shortening of time of a doctor and improvement of operation safety.

Description

Guiding structure of cutting suture device for endoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a guide structure of an endoscopic cutting suture instrument.

Background

Advances in surgery benefit from the renewal of surgical instruments, but are also limited by the development of mechanisms. The linear cutting stitching instrument for the endoscope in the 90 th century realizes the disposable automatic stitching and cutting of important tissues and blood vessels in a narrow space, and promotes the leap of modern endoscopic surgery. When the endoscope is used for suturing, the tissue or the blood vessel is required to pass through by the nail anvil, and then the nail anvil and the nail cabin are closed and excited to finish the aim of suturing and cutting.

Currently, laparoscopic surgery has evolved to complete complex procedures under full scope while still being somewhat constrained by suturing instruments. Taking the cutting of pulmonary vessels as an example, it is sometimes difficult to free a sufficiently long space to pass through an endoscopic cutting stapler anvil due to the influence of surrounding tissue. Along with the progress of technology, a plurality of surgical fields have been developed to the stage of single-hole endoscope operation at present, the single-hole endoscope operation is smaller to patient's operation wound, but the visual field under the single-hole endoscope and the operation apparatus are the same direction, are difficult to observe from different angles, can have visual field blind areas when the nail anvil of the cutting stitching instrument for endoscope passes through blood vessel or tissue clearance at this moment, bring the potential safety hazard. At present, the nail anvil is provided with a cutting stitching instrument with a guiding head, but the nail anvil is of a non-detachable design, so that the whole nail anvil is lengthened, and inconvenience is brought to the operation in a limited operation space.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides the cutting stitching instrument guide structure for the endoscope, which has the advantages of simple structure, easiness in manufacturing, adaptation to a narrow space, operation blind area elimination, safety and high efficiency in use, reduction of operation difficulty, shortening of talent period of an operator and improvement of operation safety.

To achieve the above object, the present utility model provides an endoscopic cutting stapler guiding structure including: a guide portion for guiding a staple anvil of the cutting stapler through a narrow space of a lower wall of a blood vessel; a connection part with one end connected with the guide part and the other end detachably connected with the nail anvil; wherein, guide portion with the contained angle that is greater than 110 between the portion of plugging into.

Preferably, the connection portion includes: the sheet is connected with the upper part of one end of the guide part, and the extending direction of the sheet and the extending direction of the guide part form an included angle of more than 110 degrees; a pair of claws connected to both sides of a lower portion of one end of the guide portion, the extending direction of the pair of claws being parallel to the extending direction of the sheet; wherein, the thin sheet and the pair of clamping jaws form a clamping groove for clamping the front end of the nail anvil.

Preferably, the extending length of the pair of claws of the connection part is longer than the extending length of the sheet.

Preferably, the connection part has magnetism.

Alternatively, the connection part is provided with a magnet.

Preferably, the guide portion width gradually narrows from one end connected to the connection portion toward the other end.

Preferably, the thickness of the guide portion gradually decreases from one end connected to the connection portion toward the other end.

Preferably, the outer surface of the guide portion is provided with a fluorescent coating for development under fluoroscopy.

Preferably, the guide is provided with a groove facilitating passage through the tissue space.

Preferably, the surface of the connection part for contacting the nail anvil is frosted.

Compared with the prior art, the guiding structure of the cutting stitching instrument for the endoscope has the following advantages:

the guide structure of the cutting stitching instrument for the endoscope has the advantages of simple structure and convenient use, and guides the cutting stitching instrument for the endoscope to pass through a tissue or a blood vessel in a narrow space, so that an operation blind area does not exist in an operation, the operation difficulty is reduced, the talent period of an operator is shortened, the potential safety hazard is reduced, and the operation safety is greatly improved.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an endoscopic cutter stapler guiding structure of the present utility model;

FIG. 2 is a front view of the guiding structure of the endoscopic cutting stapler according to the present utility model;

FIG. 3 is a right side view of the guiding structure of the endoscopic cutting stapler of the present utility model.

Detailed Description

As shown in fig. 1 to 3, the structure diagrams of the guiding structure of the cutting stapler for endoscope according to the present utility model are respectively shown in different view angles, and as can be seen from the figures, the guiding structure of the cutting stapler for endoscope according to the present utility model comprises: a guide part 1 for guiding a staple anvil of a related art cutting stapler through a narrow space of a lower wall of a blood vessel; a connection part with one end connected with the guiding part and the other end detachably connected with a nail anvil (not shown in the figure); wherein, have the contained angle that is greater than 110 between guide part and the portion of plugging into.

Specifically, the guide part of the utility model is in a flat circular shape, the width of the guide part gradually narrows from one end connected with the connection part to the other end, and the thickness gradually decreases from one end connected with the connection part to the other end, so that the guide part is contracted into a blunt circular tip at the other end of the guide part.

The connection part of the utility model can adopt the following structure, comprising: a sheet 2 connected to the upper part of one end of the guide part, the extending direction of which forms an included angle of more than 110 DEG with the extending direction of the guide part (as shown in figure 3); a pair of elongated bars, namely a first jaw 3 and a second jaw 4, connected to both sides of one end lower portion of the guide portion, the extending direction of the pair of jaws being parallel to the extending direction of the sheet; wherein the sheet, the pair of claws and the side wall of one end of the guide part enclose a clamping groove 5 for clamping the front end of the nail anvil.

Preferably, the guide portion and the connection portion form an included angle of 120 degrees, and the design of the included angle of 120 degrees is particularly important when the nail anvil of the cutting stitching instrument passes through the blood vessel, because the nail anvil is connected with the connection portion and has the same extending direction as the connection portion, under the condition that the nail anvil cannot cross the blood vessel when passing through the lower wall of the blood vessel, the guide portion can cross the blood vessel and appear under the direct vision due to the 120-degree included angle of the guide portion and the connection portion, and the nail anvil is driven to pass through the narrow space of the lower wall of the blood vessel, so that the visual angle blind area of operation is eliminated. During manufacturing, the upper surface of the guide part and the upper surface of the connection part, the lower surface of the guide part and the lower surface of the connection part respectively adopt smooth surface transition.

When designed, the extending length of the pair of jaws of the connection part is larger than that of the sheet (as shown in fig. 3). When the connection part is connected with the nail anvil, the front end of the nail anvil is inserted into the clamping groove, the depth of the nail anvil inserted into the clamping groove is limited by the side wall at one end of the guide part, and the pair of clamping jaws of the connection part are respectively clamped on shoulders protruding outwards at two sides of the nail anvil, so that the nail anvil is firmly fixed by the connection part.

That is, the interface includes a tab and two finger-like fingers that fit over the protruding shoulders of the anvil, with the tab and fingers forming a solid interface for connection with the anvil. In order to increase the fastening degree between the connection part and the nail anvil block and make the connection between the connection part and the nail anvil block more stable, the connection part can have certain magnetism, for example, the connection part is made of a material with magnetism, or can be magnetized, or a magnet can be arranged on the connection part, for example, a magnetic sheet with magnetism is fixed on the lower surface of the sheet in a pasting mode, etc. Further, the contact surface of the connection part, which is used for being connected with the nail anvil, is frosted to form a frosted surface, so that the fastening degree of the connection part is increased.

Furthermore, the outer surface of the guiding part can be coated with a fluorescent coating, and the position of the guiding part in the tissue can be clearly seen even if the guiding part is covered by the tissue in the guiding process of the guiding structure by utilizing the characteristic that fluorescent light rays of the fluorescent coating under a fluorescent mirror can penetrate through the tissue, so that the operation is convenient.

In addition, one or more grooves extending along the length extension direction can be arranged on the guiding part, so that the guiding part can smoothly pass through the tissue gap in the guiding process.

The connecting part of the utility model is detachably connected with the nail anvil of the cutting stitching instrument, and the whole guiding structure can be removed according to the need after the guiding is completed, so that the whole cutting stitching instrument is prevented from being overlong, and the occurrence of operation conditions is prevented from being influenced.

In addition, the connecting part and the guiding part can be made into a whole structure by 3D printing metal, and can also be made into a whole structure by other methods in the prior art.

Although the embodiments of the present utility model have been described in detail above, the embodiments of the present utility model are not limited thereto, and those skilled in the art can make modifications according to the principles of the embodiments of the present utility model, and thus, all modifications according to the principles of the embodiments of the present utility model should be understood to fall within the scope of the embodiments of the present utility model.

Claims

1. An endoscopic cutting stapler guiding structure, comprising:

a guide portion for guiding a staple anvil of the cutting stapler through a narrow space of a lower wall of a blood vessel;

a connection part with one end connected with the guide part and the other end detachably connected with the nail anvil;

wherein, guide portion with the contained angle that is greater than 110 between the portion of plugging into.

2. The endoscopic cutter stapler guiding structure according to claim 1, wherein said connection portion comprises:

the sheet is connected with the upper part of one end of the guide part, and the extending direction of the sheet and the extending direction of the guide part form an included angle of more than 110 degrees;

a pair of claws connected to both sides of a lower portion of one end of the guide portion, the extending direction of the pair of claws being parallel to the extending direction of the sheet;

wherein, the thin sheet and the pair of clamping jaws form a clamping groove for clamping the front end of the nail anvil.

3. The guide structure of an endoscopic cutting stapler according to claim 2, wherein an extension length of a pair of jaws of said docking portion is larger than an extension length of a sheet.

4. The guide structure of any one of claims 1 to 3, wherein the attachment portion has magnetism.

5. The guide structure of any one of claims 1 to 3, wherein the connection portion is provided with a magnet.

6. The guide structure of an endoscopic cutting stapler according to claim 1, wherein the guide portion width gradually narrows from one end connected to the connection portion toward the other end.

7. The guide structure of an endoscopic cutting stapler according to claim 6, wherein the thickness of the guide portion gradually decreases from one end connected to the docking portion toward the other end.

8. The endoscopic cutter stapler guide structure according to claim 1, wherein said guide portion outer surface is provided with a fluorescent coating for development under a fluoroscope.

9. The endoscopic cutter stapler guide structure according to claim 1, wherein said guide portion is provided with a groove facilitating passage through a tissue gap.