CN219271014U

CN219271014U - Miniature vascular anastomat

Info

Publication number: CN219271014U
Application number: CN202320817184.5U
Authority: CN
Inventors: 关鹏
Original assignee: Hunan Yuanzhen Medical Technology Co ltd
Current assignee: Hunan Yuanzhen Medical Technology Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-06-30
Anticipated expiration: 2033-04-13

Abstract

The utility model relates to the technical field of vascular anastomosis, in particular to a miniature vascular anastomat which comprises a tube body, a first sleeve and a second sleeve; the pipe body comprises a middle section parallel to the axis, two groups of barbs which are symmetrically arranged are arranged outside the middle section, two ends of the middle section are provided with entering sections, and the diameter of each entering section gradually decreases outwards from the middle section; the first sleeve and the second sleeve are sleeved outside the pipe body, the inner wall of the first sleeve is provided with saw teeth opposite to the barbs, and locking is realized through matching of the saw teeth and the barbs; and a clamping mechanism is arranged on one side of the first sleeve and the second sleeve, which faces the pipe body, and is used for ensuring the connection strength of the first sleeve and the second sleeve. According to the utility model, the first locking is realized by arranging the matching of the saw teeth and the barbs, and the first sleeve and the second sleeve are mutually clamped by the clamping mechanism to realize the second locking, so that the two blood vessels are fixed, the anastomosis between the blood vessels is realized, the strength of the anastomat is ensured, and the occurrence of looseness is avoided.

Description

Miniature vascular anastomat

Technical Field

The utility model relates to the technical field of vascular anastomosis, in particular to a miniature vascular anastomat.

Background

In various surgical operations, vascular anastomosis is a necessary operation item, and the vascular anastomosis generally comprises two modes of manual suturing and anastomotic using an anastomat, and the existing needle-type vascular anastomosis method has the problems of high operation difficulty and low anastomosis efficiency.

Through searching, the Chinese utility model discloses the application number: CN201921787927.9, name: the vascular anastomat solves the problems, but after the vascular anastomat is anastomosed by the vascular anastomat, the vascular anastomat is locked by the locking nails, and the vascular anastomat is easily loosened to cause danger only once.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a miniature vascular anastomat, which solves the problem that the anastomat in the prior art is easy to loose.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a miniature vessel anastomat comprises a tube body, a first sleeve and a second sleeve;

the pipe body comprises a middle section parallel to the axis, two groups of barbs which are symmetrically arranged are arranged outside the middle section, two ends of the middle section are provided with entering sections, and the diameter of each entering section gradually decreases outwards from the middle section;

the first sleeve and the second sleeve are sleeved outside the pipe body, the inner wall of the first sleeve is provided with saw teeth opposite to the barbs, and locking is realized through matching of the saw teeth and the barbs;

and a clamping mechanism is arranged on one side of the first sleeve and the second sleeve, which faces the pipe body, and is used for ensuring the connection strength of the first sleeve and the second sleeve.

Preferably, the clamping mechanism comprises a corresponding anti-disengaging thorn and an anti-disengaging groove, wherein the anti-disengaging thorn is annularly arranged on the side surface of the first sleeve, the anti-disengaging groove is annularly arranged on the side surface of the second sleeve, and the anti-disengaging thorn is in interference fit with the anti-disengaging groove.

Preferably, the end part of the anti-slip thorn is in a sharp thorn arrangement.

Preferably, the surface of the anti-drop thorn is provided with an annular groove, and an annular boss is arranged in the anti-drop groove.

Preferably, the pipe body is integrally arranged.

The utility model provides a miniature vascular anastomat, which has the following beneficial effects:

according to the utility model, the first locking is realized by arranging the matching of the saw teeth and the barbs, and the first sleeve and the second sleeve are mutually clamped by the clamping mechanism to realize the second locking, so that the two blood vessels are fixed, the anastomosis between the blood vessels is realized, the strength of the anastomat is ensured, and the occurrence of looseness is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a mini-vessel stapler according to the present utility model;

FIG. 2 is a schematic view of the whole structure of the mini-vessel anastomat of the present utility model;

fig. 3 is a schematic view showing an internal structure of the mini vascular anastomat according to the present utility model.

In the figure: 10-sleeve I, 11-anti-slip thorn, 20-tube body, 21-entering section, 22-barb, 23-intermediate section, 30-sleeve II and 31-anti-slip groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, the present utility model provides example 1:

a miniature vessel anastomat comprises a tube body 20, a first sleeve 10 and a second sleeve 30;

the pipe body 20 comprises a middle section 23 parallel to the axis, two groups of barbs 22 which are symmetrically arranged are arranged outside the middle section, two ends of the middle section 23 are provided with an entering section 21, the diameter of the entering section 21 gradually decreases outwards from the middle section 23, and the middle section 23 and the entering section 21 are integrally arranged;

the first sleeve 10 and the second sleeve 30 are sleeved outside the pipe body 20, the inner wall of the first sleeve is provided with saw teeth opposite to the barbs 22, and locking is realized through the cooperation of the saw teeth and the barbs 22;

the first sleeve 10 and the second sleeve 30 are provided with a clamping mechanism at one side facing the pipe body 20, so as to ensure the connection strength of the first sleeve 10 and the second sleeve 30 and avoid the risk of loosening.

When the anastomat is used, the first sleeve 10 and the second sleeve 30 are sleeved outside the two blood vessels from the fracture according to the blood vessels, the pipe body 20 is sleeved between the two ends of the fractured blood vessels, the two blood vessel ports are sleeved outside the pipe body 20 through the inlet section 21, then the ports of the fracture of the blood vessels are turned outwards, the first sleeve 10 and the second sleeve 30 are pushed, and then the middle section 23 of the pipe body 20 is pushed, primary looseness prevention is achieved through the cooperation of the saw teeth and the barbs 22, after the primary looseness prevention is achieved, the first sleeve 10 and the second sleeve 30 are clamped with each other by the clamping mechanism, secondary looseness prevention is achieved, and therefore the two blood vessels are fixed, the anastomosis between the blood vessels is achieved, the strength of the anastomat is guaranteed, and looseness is avoided.

As shown in fig. 3: the clamping mechanism comprises a corresponding anti-slip thorn 11 and an anti-slip groove 31, wherein the anti-slip thorn 11 is annularly arranged on the side surface of the first sleeve 10, the anti-slip groove 31 is annularly arranged on the side surface of the second sleeve 30, the anti-slip thorn 11 is in interference fit with the anti-slip groove 31, and the end part of the anti-slip thorn 11 is in spike arrangement, so that in the anastomosis process of the end part of a blood vessel, the end part of the anti-slip thorn 11 punctures the everting part of the end part of the blood vessel and enters the anti-slip groove 31, and the locking of the anti-slip thorn 11 is realized through the interference fit of the anti-slip groove 31 and the anti-slip thorn 11, so that the loosening phenomenon is avoided.

Referring to fig. 3, the present embodiment also provides embodiment 2:

unlike example 1, the following is: in this embodiment, the stopping and taking-off thorn 11 and the stopping and taking-off groove 31 are not in interference fit, but an annular groove is formed in the surface of the stopping and taking-off thorn 11, and an annular boss is arranged in the stopping and taking-off groove 31, when the stopping and taking-off thorn 11 pierces the everting position of the end part of the blood vessel and enters the inside of the stopping and taking-off groove 31, the annular boss and the annular groove are mutually clamped, so that the locking function is realized, and the locking function is also played.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A miniature vessel anastomat, which is characterized in that: comprises a pipe body (20), a first sleeve (10) and a second sleeve (30);

the pipe body (20) comprises a middle section (23) parallel to the axis, two groups of barbs (22) which are symmetrically arranged are arranged outside the middle section (23), two ends of the middle section (23) are provided with inlet sections (21), and the diameter of the inlet sections (21) gradually decreases outwards from the middle section (23);

the first sleeve (10) and the second sleeve (30) are sleeved outside the pipe body (20), the inner wall of the first sleeve is provided with saw teeth opposite to the barbs (22), and locking is realized through matching of the saw teeth and the barbs (22);

and a clamping mechanism is arranged on one side of the first sleeve (10) and the second sleeve (30) facing the pipe body (20) and used for ensuring the connection strength of the first sleeve (10) and the second sleeve (30).

2. A microvascular stapler according to claim 1, wherein: the clamping mechanism comprises a corresponding anti-disengaging thorn (11) and an anti-disengaging groove (31), wherein the anti-disengaging thorn (11) is annularly arranged on the side face of the first sleeve (10), the anti-disengaging groove (31) is annularly arranged on the side face of the second sleeve (30), and the anti-disengaging thorn (11) and the anti-disengaging groove (31) are in interference fit.

3. A microvascular stapler according to claim 2, wherein: the end part of the anti-falling thorn (11) is in a sharp thorn arrangement.

4. A microvascular stapler according to claim 2, wherein: an annular groove is formed in the surface of the anti-falling thorn (11), and an annular boss is arranged in the anti-falling groove (31).

5. A microvascular stapler according to claim 1, wherein: the pipe body (20) is integrally arranged.