CN201855492U

CN201855492U - Aortic cannula

Info

Publication number: CN201855492U
Application number: CN2010206005133U
Authority: CN
Inventors: 张东惠; 王铭; 武衡
Original assignee: PLASTIC INST TIANJIN CITY
Current assignee: PLASTIC INST TIANJIN CITY
Priority date: 2010-11-10
Filing date: 2010-11-10
Publication date: 2011-06-08
Anticipated expiration: 2020-11-10

Abstract

The utility model relates to an aortic cannula, which is characterized in that the main part of the cannula is a compound reducer which is molded by extrusion in one step, one end with a smaller diameter of the main part is used as an inserting end, and the other end with a larger diameter of the main part is used as an external end. The main part is provided with a colorful marking line which is arranged on a cannula wall along the axial direction and the width of the colorful marking line is adjustable. The main part close to the inserting end is provided with a positioning ring, and the external end of the main part is connected with a connector which is combined with the external end into a whole. The aortic cannula is simple in structure, safe and reliable, high in transparency and convenient in use, and is small in blood resistance and smooth to transit due to the fact that aortic cannula is integrally molded without connecting joints.

Description

Aortic cannulation

Technical field

This utility model belongs to the clinical medicine apparatus, particularly relates to a kind of aortic cannulation.

Background technology

In cardiac operation, finish metabolism by the effect of heart-lung machine and oxygenation chamber, the fresh blood that contains oxygen is got back to human body through aortic cannulation.The aortic cannulation that uses clinically mainly contains following several types at present: 1, soak molded structure: this kind product advantage is that inner wall smooth, tapering transition are good, blood flow is unobstructed, but process equipment is complicated, production efficiency is lower, and soak and mould raw material and in the course of processing, discharge a large amount of smog easily, the infringement health pollutes environment.2, post forming structure: main part is diametered ducts such as extrusion molding, bonding hard injection molding joint of one end or stainless steel tube, advantage is to reduce the insertion end wall thickness, augmented flow, shortcoming is because lapping defect appears in junction easily, is unfavorable for the smooth flow of blood, and the abutting edge has the danger that comes off in addition, and, need the die cost of input very big because product specification is more.

Summary of the invention

This utility model provides a kind of simple in structure, safe and reliable for solving the technical problem that exists in the known technology, and one-body molded gapless, resistance of blood flow are little, smooth transition, the aortic cannulation that transparency is good and easy to use.

The technical scheme that this utility model is taked for the technical problem that exists in the solution known technology is: aortic cannulation, it is characterized in that: the main part of intubate is the compound reducer pipe of disposable extrusion molding, the less end of main part diameter is an insertion end, and the end that diameter is bigger is external end; Main part has in the color-coded lines of described tube wall along the compound width-adjustable joint of axis direction, and main part is provided with a locating ring near insertion end, and the external end of main part is connected with a joint.

This utility model can also adopt following technical scheme:

The insertion end of described main part is directly chews the shape structure.

The insertion end of described main part is the curved shape structure of chewing.

Described locating ring and main part insertion end apart from scalable.

Advantage and the good effect that the utlity model has are: because this utility model adopts technique scheme, the body gapless that is formed in one, and softness is moderate, insertion is easy, smooth transition, resistance of blood flow are little, transparency is convenient to observe blood circumstance well, reach instructions for use, simple in structure, safe and reliable, have remarkable economic efficiency and a social benefit.

Description of drawings

Fig. 1 is the structural representation of this utility model embodiment 1;

Fig. 2 is the structural representation of this utility model embodiment 2.

Among the figure: 1, main part; 2, insertion end; 3, external end; 4, mark line; 5, locating ring; 6, joint.

The specific embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

Embodiment 1, sees also Fig. 1, aortic cannulation, the main part 1 of intubate is the compound reducer pipe of disposable extrusion molding, according to patient's body weight difference, random variation conduit diameter thickness, wall thickness size, tapering change on demand, produce the product of multiple different size.The less end of described main part diameter is an insertion end 2, and described insertion end is directly chews the shape structure, and the insertion end top is the angular cut shape, has the angle of chamfer of regulation, smooth no corner angle.The end that diameter is bigger is external end 3, the external end of main part be connected with one with its all-in-one-piece joint 6 so that be connected with the extracorporeal circulation pipeline when using.Main part has in the color-coded lines 4 of described tube wall along the compound width-adjustable joint of axis direction, as the sign of insertion end inclined-plane opening direction.Main part is provided with a locating ring 5 near insertion end.

Embodiment 2, see also Fig. 2, aortic cannulation, the main part 1 of intubate is the compound reducer pipe of disposable extrusion molding, according to patient's body weight difference, random variation conduit diameter thickness, wall thickness size, tapering change on demand, produce the product of multiple different size.The less end of described main part diameter is an insertion end 2, and described insertion end is curved and chews the shape structure, and the insertion end top is the angular cut shape, has the angle of chamfer of regulation, smooth no corner angle.The end that diameter is bigger is external end 3, the external end of main part be connected with one with its all-in-one-piece joint 6 so that be connected with the extracorporeal circulation pipeline when using.Main part has in the color-coded lines 4 of described tube wall along the compound width-adjustable joint of axis direction, as the sign of insertion end inclined-plane opening direction.Main part is provided with a locating ring 5 near insertion end.

Claims

1. aortic cannulation, it is characterized in that: the main part of intubate is the compound reducer pipe of disposable extrusion molding, and the less end of main part diameter is an insertion end, and the end that diameter is bigger is external end; Main part has in the color-coded lines of described tube wall along the compound width-adjustable joint of axis direction, and main part is provided with a locating ring near insertion end, and the external end of main part is connected with a joint.

2. aortic cannulation according to claim 1 is characterized in that: the insertion end of described main part is directly chews the shape structure.

3. aortic cannulation according to claim 1 is characterized in that: the insertion end of described main part is the curved shape structure of chewing.

4. aortic cannulation according to claim 1 is characterized in that: described locating ring and main part insertion end apart from scalable.