CN206995538U

CN206995538U - A kind of preventing thrombosis conduit

Info

Publication number: CN206995538U
Application number: CN201720071731.4U
Authority: CN
Inventors: 凌毅生
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-20
Filing date: 2017-01-20
Publication date: 2018-02-13
Anticipated expiration: 2027-01-20

Abstract

The utility model discloses a kind of preventing thrombosis conduit, including conduit and the catheter jacket for being wrapped in catheter outer, conduit slides back and forth along catheter jacket, the catheter jacket is made using flexible material, the front end of catheter jacket be provided with can elastic open closure mouth, conduit to be isolated from the outside, the front end of the conduit is provided with several and is used for taking blood and feeds back the opening of blood, when the conduit slides back and forth with respect to catheter jacket, extended or retraction catheter jacket the closure mouth of opening of catheter proximal end.

Description

A kind of preventing thrombosis conduit

Technical field

Area of medical devices is the utility model is related to, refers in particular to a kind of preventing thrombosis conduit.

Background technology

Hemodialysis are a kind for the treatment of means that kidney failure patient sustains life and carried out, it usually needs use one Kind haemodialysis medical catheter implantation Deep venou blood vessel, according to treatment cycle length, conduit needs to place one in vein blood vessel Even several years individual month, because the front end of inlying catheter is provided with many opening A（Referring to Fig. 1）, for taking blood and feeding back blood, for a long time The opening of inlying catheter front end easily forms thrombus after placement, can induce can be fatal risk；Or wrapping fiber outside conduit Sheath, conduit is caused to lose function, the utility model is improved for above mentioned problem existing for existing catheter design, this Thus case produces.

Utility model content

Therefore, the purpose of this utility model is to provide a kind of preventing thrombosis conduit, it is easy to solve conduit in the prior art Thrombosed problem.

For the above-mentioned purpose, the technical solution of the utility model is：A kind of preventing thrombosis conduit, including conduit and being wrapped in are led The catheter jacket of outer tube layer, conduit are slid back and forth along catheter jacket, and the catheter jacket is made using flexible material, is led The front end of pipe overcoat be provided with can elastic open closure mouth, conduit to be isolated from the outside, if the front end of the conduit be provided with The dry opening for being used for taking blood and feeding back blood, when the conduit slides back and forth with respect to catheter jacket, the opening of catheter proximal end can stretch Go out or the closure mouth of retraction catheter jacket.

The end of the catheter jacket wraps the terylene set of a positioning.

Using said structure, the utility model can prevent connecing for blood and catheter proximal end completely by the design of catheter jacket Touch, so as to effectively reduce catheter proximal end opening thrombus formation, compared with prior art can be more permanent holding conduit it is unobstructed, In addition, because the design of catheter jacket, fiber sheath can only be formed on catheter jacket, normally made so as to not interfere with conduit Use function.

Brief description of the drawings

Fig. 1 is the structural representation of existing conduit；

Fig. 2 is structural representation of the present utility model；

Fig. 3 is structural representation of the present utility model, and display conduit does not extend out state；

Fig. 4 is structural representation of the present utility model, the state that display conduit stretches out.

Embodiment

The utility model is elaborated below in conjunction with accompanying drawing and specific implementation.

As shown in Figure 2,3, 4, a kind of preventing thrombosis conduit of the present utility model, including conduit 1 and it is wrapped in the outer layer of conduit 1 Catheter jacket 2, the gap of catheter jacket 2 coordinate the outside for being wrapped in whole piece conduit 1, and conduit 1 can be slided along before and after catheter jacket 2 Dynamic, the catheter jacket 2 is made using flexible material, the front end of catheter jacket 2 be provided with can elastic open closure mouth 21, Conduit 1 to be isolated from the outside, the front end of the conduit 1 is provided with several and is used for taking blood and feeds back the opening 11 of blood, should When conduit 1 slides back and forth with respect to catheter jacket 2, the opening 11 of catheter proximal end is extended or the closure mouth 21 of retraction catheter jacket.

Further, the end of the catheter jacket 2 wraps terylene set 22, and the purpose is to position catheter jacket 2 Under the skin.

During haemodialysis, as shown in Figure 3, the front end that makes conduit 1 will be pushed away before conduit 1 and is stretched out along the forward slip of catheter jacket 2 Mouth 21 is closed, the fully exposure of opening 11 of the front end of conduit 1 is used as effective vascular access, makes substantial amounts of blood disengaging internal；Control At the end for the treatment of, as shown in figure 4, conduit 1 is withdrawn, in the front end retraction catheter jacket 2 of conduit 1, the bullet of closure mouth 21 of catheter jacket 2 Property closure, the opening 11 of the front end of conduit 1 isolate with blood, complete prevention blood and catheter contact, prevents the blood of the front end of conduit 1 Bolt is formed.

It can be seen that using such scheme, the utility model by the design of catheter jacket 2 can prevent completely blood with before conduit The contact at end, so as to effectively reduce the formation of thrombus at the front opening of conduit 1, holding conduit that compared with prior art can be more permanent It is unobstructed, in addition, because the design of catheter jacket 2, fiber sheath can only form on catheter jacket 2, be led so as to not interfere with Pipe 1 normally uses function.

It is described above, preferred embodiment only of the present utility model, not it is used for limiting the utility model implementation Scope.Therefore the change or modification done in every case according to claim of the present utility model and specification, it should all belong to the utility model Within the scope of patent covers.

Claims

A kind of 1. preventing thrombosis conduit, it is characterised in that：Including conduit and it is wrapped in conduit

The catheter jacket of outer layer, conduit are slid back and forth along catheter jacket, and the catheter jacket is made using flexible material, The front end of catheter jacket be provided with can elastic open closure mouth, conduit to be isolated from the outside, the front end of the conduit is provided with Several are used for taking blood and feed back the opening of blood, and when the conduit slides back and forth with respect to catheter jacket, the opening of catheter proximal end can Stretching or the closure mouth of retraction catheter jacket.
A kind of 2. preventing thrombosis conduit as claimed in claim 1, it is characterised in that：The positioning of end wrapping one of the catheter jacket Terylene set.