CN212853669U

CN212853669U - Skin expander

Info

Publication number: CN212853669U
Application number: CN202021010227.1U
Authority: CN
Inventors: 华祖广; 晋圣阳; 魏鹏
Original assignee: Ningbo First Hospital
Current assignee: Ningbo First Hospital
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-04-02
Anticipated expiration: 2030-06-04

Abstract

The embodiment of the utility model provides a skin expander belongs to expander technical field, skin expander includes: the outer surface of the expansion bag is provided with an inwards concave blood vessel groove which can accommodate a blood vessel; a catheter connected to the dilation balloon; wherein the catheter acts on the dilatation balloon and causes the depth of the vessel groove to increase by the dilatation balloon. The technical effect of expanding the skin and simultaneously expanding the branch-crossing blood vessel is achieved.

Description

Skin expander

Technical Field

The utility model relates to an expander technical field especially relates to a skin expander.

Background

The current skin expander is used for expanding skin, and the using mode is that the expansion bag is firstly placed into a subcutaneous tissue layer or a deep fascia layer, and the volume of the expansion bag is increased by injecting water or inflating air into the conduit, so that the external surface area of the local skin is increased due to the influence of the expander.

However, the existing skin dilator only considers how to dilate the skin, and in the actual use process, the perforator blood vessels which can be reserved by the dilating part of the common dilator are short, the perforator blood vessels are short, and the skin obtained by dilation cannot be subjected to long-distance skin flap transfer, so that the range which can be covered by the skin flap is limited.

Therefore, the technical problems of the prior art are as follows: the skin obtained by the dilator has short blood vessel.

Disclosure of Invention

The embodiment of the application provides a skin dilator, which solves the technical problem that the skin perforator blood vessel obtained by dilator dilation in the prior art is short; the technical effect of expanding the skin and the blood vessel of the branch is achieved.

The embodiment of the present application provides a skin expander, skin expander includes: the outer surface of the expansion bag is provided with an inwards concave blood vessel groove which can accommodate a blood vessel; a catheter connected to the dilation balloon; wherein the catheter acts on the dilatation balloon and causes the depth of the vessel groove to increase by the dilatation balloon.

Preferably, the blood vessel groove on the expansion capsule is provided in plural, and the plural blood vessel grooves are arranged at intervals.

Preferably, the bottom surface of the blood vessel groove is a cambered surface.

Preferably, the bottom surface of the blood vessel groove is a circular arc surface.

Preferably, the expansion capsule is deformable and expandable, and the expansion direction of the expansion capsule is the axial direction of the blood vessel groove.

Preferably, the cross-section of the dilatation balloon is square, circular or crescent shaped.

Preferably, the outer surface of the expansion capsules is provided with connecting elements, so that two or more expansion capsules can be connected and combined.

Preferably, the connecting member is a clip, an adsorption member or an adhesion member.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

1. in the embodiment of the application, the blood vessel groove is arranged on the expansion capsule, when the expansion capsule is placed in, the blood vessel groove is used for clamping the branch-crossing blood vessel, and the branch-crossing blood vessel is continuously lengthened along with the expansion in the continuous expansion process of the expansion capsule, so that the technical problem that the branch-crossing blood vessel of the skin obtained by expansion of the expander in the prior art is short is solved; the technical effect of expanding the skin and the blood vessel of the branch is achieved.

2. In the embodiment of the application, through setting up the connecting piece at the surface of expansion bag for can make up the use between a plurality of expansion bags, be convenient for through the size that reduces single expansion bag, according to subcutaneous tissue layer perforator position, design the range combinatorial relation of expansion bag, make the blood vessel groove on the expansion bag can with perforator better cooperation, be convenient for expand out the perforator that skin has many long-sizes more.

Drawings

FIG. 1 is a schematic axial view of a skin expander in accordance with an embodiment of the present application;

FIG. 2 is a schematic bottom view of a skin expander in an embodiment of the present application;

FIG. 3 is a schematic bottom view of yet another embodiment of a skin expander of the present application;

FIG. 4 is a combined front view configuration of two skin expanders in an embodiment of the present application;

FIG. 5 is a schematic top view of yet another skin expander in an embodiment of the present application;

FIG. 6 is a schematic top view of yet another skin expander in an embodiment of the present application;

fig. 7 is a top view of another embodiment of a combination of two skin expanders.

Reference numerals: 1. expanding the balloon; 2. a conduit; 3. a blood vessel groove; 4. a connecting member; 5. and (4) puncturing and branching blood vessels.

Detailed Description

The embodiment of the application provides a skin dilator, and the blood vessel groove is arranged on the dilation balloon, so that a branch-crossing blood vessel is clamped by the blood vessel groove when the dilation balloon is placed in, and the branch-crossing blood vessel is continuously lengthened along with the branch-crossing blood vessel in the continuous dilation process of the dilation balloon, so that the technical problem that the branch-crossing blood vessel of the skin obtained by dilation of the dilator in the prior art is short is solved; the technical effect of expanding the skin and the blood vessel of the branch is achieved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Example one

A skin expander, the skin expander comprising: the blood vessel puncture catheter comprises an expansion balloon and a catheter, wherein the expansion balloon is a cuboid, an inwards concave blood vessel groove is formed in the outer surface of the expansion balloon, and a blood vessel puncture can be accommodated in the blood vessel groove; the catheter is connected to the expansion balloon; and the depth of the blood vessel groove is increased by expanding the sac.

Specifically, the blood vessel grooves on the expansion capsule are arranged at intervals, so that the blood vessel grooves on the expansion capsule can be flexibly selected for clamping and limiting according to the position of the blood vessel to be punctured. The bottom surface of the blood vessel groove is a cambered surface, preferably an arc surface.

Specifically, the expansion bag can be deformed and expanded, and the expansion direction of the expansion bag is the axial direction of the blood vessel groove, so that the depth of the blood vessel groove is increased in the deformation and expansion process of the expansion bag, and the blood vessel is continuously stretched and lengthened under the protection of the blood vessel groove in the process of jacking the subcutaneous tissue layer by the expansion bag, so that the purpose that the flap can be transferred in a long distance is achieved.

Example two

On the basis of the first embodiment, further optimization is carried out, specifically:

the outer surface of the expansion capsule is provided with a connecting piece so that two or more expansion capsules can be connected and combined. When the expansion bags can be combined and connected, the size of the expansion bags can be made small, so that the combination form among the expansion bags is more diversified, and the blood vessel groove on the expansion bags is clamped on the blood vessel to be punctured.

Specifically, the connecting piece is a clamping piece, an adsorption piece or an adhesion piece. Such as a buckle, a magnetic sheet or an adhesive.

EXAMPLE III

On the basis of the first embodiment or the second embodiment, further optimization is carried out, specifically:

the shape of the expansion capsule is changed from a cuboid to a cylinder or a sphere, so that the shape of the skin expanded to be close to a circle.

Example four

the shape of the expansion capsule is changed into a crescent or cashew shape from a cuboid, so that the shape of the skin expanded to be close to a crescent.

The working principle is as follows:

when the expansion capsule is placed, the blood vessel groove is used for clamping the branch blood vessel, and in the continuous expansion process of the expansion capsule, the branch blood vessel is continuously stretched and lengthened under the protection of the blood vessel groove, so that the purpose that the flap can be transferred in a long distance is achieved.

The technical effects are as follows:

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A skin expander, characterized in that the skin expander comprises:

the outer surface of the expansion bag is provided with an inwards concave blood vessel groove which can accommodate a blood vessel;

a catheter connected to the dilation balloon;

wherein the catheter acts on the dilatation balloon and causes the depth of the vessel groove to increase by the dilatation balloon.

2. The skin expander of claim 1, wherein the plurality of vessel grooves are provided on the expansion balloon and are spaced apart.

3. The skin expander of claim 1, wherein the groove bottom surface of said blood vessel groove is a curved surface.

4. The skin expander of claim 3, wherein the groove bottom surface of the blood vessel groove is embodied as a circular arc surface.

5. The skin expander as set forth in claim 1, wherein said expansion balloon is deformable and expandable, and the direction of expansion of said expansion balloon is in the axial direction of the vessel groove.

6. The skin expander of claim 1, wherein said expansion bladder is square, circular or crescent shaped in cross-section.

7. The skin expander of any one of claims 1 to 6, wherein the outer surface of said expansion bladders are provided with attachment means to allow two or more expansion bladders to be connected in combination.

8. The skin expander of claim 7, wherein said attachment member is a clip, suction member or adhesive member.