CN2843384Y - A kind of aortic blood pipe holder - Google Patents

Abstract

The utility model discloses a kind of aortic blood pipe holder, this support is connected and composed by artificial blood vessel by the tubular metal support, the tubular metal support is made up of carrier unit, carrier unit connects by artificial blood vessel, no axial tie-beam between each carrier unit, connect by the artificial blood tube wall, carrier unit connects formed tubular metal support and is gradually thin tubular construction.This utility model reduces danger and doctor's operation easier of placing intravascular stent, reduces displacement, and blood vessel wall is had good protective effect; have good flexible and even dilatancy simultaneously; the metal coverage rate is low, makes intervene operation safer, and curative effect is more definite.

Description

A kind of aortic blood pipe holder

Technical field

This utility model relates to a kind of support that is used for the aortic blood tubing patch, belongs to medical embedded device.

Background technology

Arotic disease particularly aortic aneurysm is a kind of serious threat patient life, the high cardiovascular injuries emergency case of fatality rate, and according to statistics, therapist 5 annual death rate are not 50%～76%, and merging heart and lung diseases person's mortality rate is up to 93%.Before the nineties, surgical operation is the main method of treatment arotic disease, but this operation method wound is big, operating time is long, complication is many, mortality rate is high, and the thoracoabdominal aortic aneurysm operative mortality reaches 5%～26%, and the paraplegia incidence rate is 4.6%.In recent years, hinder the development of interventional therapeutic technique along with Wicresoft, endoluminal vascular support graft exclusion treatment arotic disease is used widely, this operation method have wound little, go out insufficiency of blood, treatment time weak point, good effect, repeatable treatment etc. is the unrivaled advantage of traditional surgery method.

The aorta vessel supporting structure that occurs on the domestic and international market has various ways at present, and its main purpose all is for the radial support power of improving support, prevents internal hemorrhage due to trauma, strengthens development effect, reduces metal coverage rate and displacement phenomenon etc.Through improvement for many years, the structure of having been approved by vast user is that straight tube is cylindrical at present, at least be interconnected to constitute by a beam in its structure, as shown in Figure 1, support need be accurately positioned in beam the big curved side of aortic arch portion when implanting, its greatest drawback is the difficulty that has increased when the doctor performs the operation, and compliance is not good enough.

Summary of the invention

This utility model provides a kind of aortic blood pipe holder of Optimal Structure Designing, and this supporting structure is reasonable, can reduce the danger when placing intravascular stent, reduces the operating difficulty of doctor when performing the operation, and makes that intervene operation is safer, curative effect is better.

The designed aorta vessel rack body structure of this utility model is made of tubular metal support and the artificial blood vessel that overlays on the surface, the tubular metal support is made up of plural carrier unit, carrier unit connects and composes by artificial blood vessel, no axial tie-beam between each carrier unit, connect by the artificial blood tube wall, carrier unit connects formed tubular metal support and is gradually thin tubular construction.

The carrier unit of described aortic blood pipe holder is structures such as Z font or undaform, and its butt end end frame unit is the Phaleria macrocarpa shape, and the unitary top of end frame curves inwardly.

Advantage of the present utility model is:

1. reduce doctor's operation easier greatly.Because its structure is connected and composed by artificial blood vessel by the more piece carrier unit, the centre is difficult past tie-beam, therefore is being symmetrical structure in the radial direction, and the film-coated vascular support can be discharged in the aortic arch with any direction, makes things convenient for the doctor to operate.

2. good effect.Support is gradually fine texture, compares with cylindrical intravascular stent more to meet the gradually thin characteristics of human aortic, fits tightr with aorta wall, simultaneously, owing to be gradually thin structure, make end support unlikely excessive to the radial pressure of arterial wall, cause aortectasia at a specified future date.

3. performance is good.The more piece carrier unit only is formed by connecting by artificial blood vessel, and this connection makes intravascular stent have better flexibility, has pliability and evenly elastic expansion preferably when being discharged in the aortic arch, has reduced the metal coverage rate simultaneously.

4. little to the damage of aorta wall.The unitary diameter of end frame is big, and is the Phaleria macrocarpa shape, and promptly the top of support curves inwardly, and has both effectively avoided the displacement of support, is difficult for stabbing blood vessel wall again.

Description of drawings

Fig. 1 is existing aortic blood pipe holder signal.

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

Fig. 3 is the unitary structural representation of this utility model end frame.

The specific embodiment

As the aortic blood pipe holder of Fig. 2, to form by tubular metal support similar 1 and theartificial blood vessel 2 that is coated on the surface to the aortic blood tube shape, metal rack is made of thecarrier unit 3 that memory alloy wire is made into, and carrier unit is the Z font.More piece Z font carrier unit connects and composes byartificial blood vessel 2, and is gradually thin tubular construction downwards from the top, and end frame unit 4 is the Phaleria macrocarpa shape as shown in Figure 3, and its top curves inwardly, and can effectively prevent displacement, simultaneously blood vessel wall is had protective effect.

This utility model in use, its material property decision is softer under 0 ℃ of-10 ℃ of temperature, yielding, can easily be contracted at this moment in the stent conveying device, be pushed to human aortic tumor place, discharge support by conveyer device, under human body temperature, support resiles automatically, tightly is attached on the aortic blood tube wall, plays the purpose of treatment arotic disease.

Above-mentioned only is an instantiation, and its protection domain is decided according to claims.

Claims (4)

1. a structure is passed through the novel aortic blood pipe holder of optimal design, agent structure is made of tubular metal support and the artificial blood vessel that overlays on the surface, it is characterized in that: the tubular metal support is made up of carrier unit, carrier unit connects by artificial blood vessel, no axial tie-beam between each carrier unit, connect by the artificial blood tube wall, carrier unit connects formed tubular metal support and is gradually thin tubular construction.

2. aortic blood pipe holder according to claim 1 is characterized in that: described carrier unit is Z font or Wave-shaped structural.

3. aortic blood pipe holder according to claim 1 is characterized in that: butt end end frame unit is the Phaleria macrocarpa shape.

4. aortic blood pipe holder according to claim 3 is characterized in that: the unitary top of end frame curves inwardly.

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