CN205758766U - The split type valve bracket assembly for the treatment of tritubercular cycloid - Google Patents

Abstract

The utility model discloses a kind of split type valve bracket assembly treating tritubercular cycloid, it is characterised in that including two supports, each support is barrel-like structure, is all sewed with a biovalve in each support.This utility model uses delivery sheath to carry by the way of percutaneous is got involved, by implanting support at upper and lower superior and inferior vena cava, only allow blood flow one-way flow, i.e. can reach treatment severe tricuspid regurgitation reflux disease, without selecting the method for surgery open chest surgery or Minimally Invasive Surgery to repair, patient suffers wound little, and surgery recovery is fast, and the medical resource taken in operation is the least.

Description

The split type valve bracket assembly for the treatment of tritubercular cycloid

Technical field

This utility model relates to a kind of split type valve bracket assembly treating tritubercular cycloid, belongs to medical device technology Field.

Background technology

Tricuspid valve disease relates to the situation of the valve cisco unity malfunction between right ventricle and right atrium and would generally accompany With other cardiac valve problems occurred.

Common Tricuspid valve disease mainly has tritubercular cycloid, tricuspid stenosis, tricuspid atresia and Ebstein abnormal Shape.Wherein, tritubercular cycloid is that the paradoxical expansion right ventricle blood reflux caused due to tricuspid incompetence enters right atrium, Causing RAV to expand, pressure raises, venous backflow obstacle.This kind of situation, owing to right ventricle load increases, compensatory And plump, it is susceptible to right heart failure.

One common sympton of tritubercular cycloid patient is that the vein blood vessel of cervical region is the most thicker, and has pulse sense.This Being because tricuspid incompetence causes venous blood to backflow into superior and inferior vena cava at paradoxical expansion, in causing superior and inferior vena cava Blood flow total amount increases, so the Jugular vessel being distributed in body surface just can directly be observed.As in figure 2 it is shown, in heart contraction Phase causes venous blood to backflow right atrium from right ventricle because of tricuspid incompetence, then flows into superior and inferior vena cava.

Doppler's color ultrasound is generally used patient to be carried out echocardiography, to assess the serious journey of tritubercular cycloid Degree, hemodynamics and instrument arrange factor can impact evaluation result.

The tritubercular cycloid order of severity is divided three classes: I without backflowing or mild reflux, the light moderate of II or moderate regurgitation and III Seriously backflow.

Can be corrected by valve forming ring for slight or moderate Tricuspid valve disease.Severe tricuspid regurgitation is backflowed disease Disease then needs to be repaired by valve replacement surgery.

But, severe tricuspid regurgitation is backflowed disease, due to Tricuspid valve severe calcification, tear, prolapsus etc., be situated between by percutaneous The method implantation belt valve bracket entered is difficult to firmly fix in Tricuspid valve position.Generally, patient may select surgery and opens The method of breast operation or Minimally Invasive Surgery is repaired.For tricuspid stenosis, calcification, tear, the degree of the pathological changes such as prolapsus, can Use operation stitching to repair, displacement Mechanical Valve Prosthesis or bioprosthetic valve, add the modes such as a forming ring, by Mechanical Valve Prosthesis or Artificial bio-prosthetic valve is sewn onto annulus position, reaches to treat the purpose of tritubercular cycloid.

But surgery is opened breast valve replacement surgery and needed that Surgicenter is dirty to be stoped jumping, therefore operation wound is big, patient's post-operative recovery Relatively slow, the medical resource taken in operation is the most more.Simultaneously because improper circumfusion is to lungs, liver, kidney and nerve Systematic influence is relatively big, and post-operative complication is more, and many patients are unwilling to accept.

Summary of the invention

The technical problems to be solved in the utility model is: provides a kind of patient and suffers that wound is little, fast the controlling of surgery recovery Treat the split type valve bracket assembly of tritubercular cycloid, solve and by the way of percutaneous is got involved, how to treat severe tricuspid regurgitation return The problem of stream disease.

In order to solve above-mentioned technical problem, the technical solution of the utility model there is provided a kind of tritubercular cycloid for the treatment of Split type valve bracket assembly, it is characterised in that include two supports, each support is barrel-like structure, in each support all It is sewed with a biovalve.

Preferably, described biovalve is located at the centre position of support.

Preferably, two described supports are staggered relatively, the opening direction of two biovalves in two supports all to Venacaval depths.

Preferably, two described supports are implanted in superior and inferior vena cave respectively.

Preferably, a described stenter to implant is in superior vena cava, and the biovalve opening direction in this support is upward Caval vein；Another stenter to implant is in postcava, and the biovalve opening direction in this support is towards postcava.

Preferably, described biovalve is three-clove style biovalve.

This utility model uses delivery sheath to carry by the way of percutaneous is got involved, by implanting at upper and lower superior and inferior vena cava Support, only allow blood flow one-way flow, i.e. can reach treatment severe tricuspid regurgitation reflux disease, it is not necessary to select surgery open chest surgery or The method of person's Minimally Invasive Surgery is repaired, and patient suffers wound little, and surgery recovery is fast, and the medical resource taken in operation is the most relatively Little.This utility model also can take the modus operandi of surgery Wicresoft, is implanted to by valve bracket by sheath pipe through the little otch of breast again Superior and inferior vena cave porch.

Accompanying drawing explanation

Fig. 1 (a) is the side view of a kind of split type valve bracket assembly medium-height trestle treating tritubercular cycloid；

Fig. 1 (b) is the front view of a kind of split type valve bracket assembly medium-height trestle treating tritubercular cycloid；

Fig. 2 is the schematic heart of tritubercular cycloid；

Fig. 3 is the schematic heart after superior and inferior vena cava is implanted into support；

The operation chart (implanting support at postcava) of Fig. 4 (a) superior vena cava formula method for implantation；

The operation chart (implanting support at superior vena cava) of Fig. 4 (b) superior vena cava formula method for implantation；

The operation chart (implanting support at superior vena cava) of Fig. 5 (a) postcava formula method for implantation；

The operation chart (implanting support at postcava) of Fig. 5 (b) postcava formula method for implantation.

Detailed description of the invention

For making this utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

This utility model is a kind of split type valve bracket assembly treating tritubercular cycloid, treats tricuspid for insertion type Lobe backflows medical apparatus and instruments, and as shown in Fig. 1 (a), Fig. 1 (b), it includes upper and lower two supports, and each support is barrel-like structure, Frame is formed by the braiding of NiTi B alloy wire, it is also possible to be NiTi compo pipe or medical stainless steel pipe cut forms, each support The most all it is sewed with a biovalve, conveying sheath can be taken in and be transported to heart by sheath pipe.In the present embodiment, biovalve is three Flap-type biovalve, the source of this three-clove style biovalve can be Cor Sus domestica bag, bovine pericardium, and biovalve is located at the centre of support Position.Two supports are staggered relatively, and the opening direction of two biovalves in two supports is all to venacaval depths.Two Support is implanted in superior and inferior vena cave respectively.Wherein, stenter to implant biovalve in superior vena cava, in this support Opening direction is towards superior vena cava；Another stenter to implant is in postcava, and the biovalve opening direction in this support is down Caval vein.

Need to operate in two steps during implantation, first implant superior vena cava formula valve bracket and replant into postcava formula valve bracket, Or reversed order.Tritubercular cycloid is caused, valve bracket group of the present utility model for the functional incompetence of Tricuspid valve Part can stop venous blood to backflow into superior and inferior vena cava at paradoxical expansion, alleviates the burden of right ventricle.

During use, this utility model is divided into postcava implanted and superior vena cava implanted:

Superior vena cava implanted:

First jugular vein makes breach, by conveying sheath along jugular vein blood vessel access, arrives superior vena cava, will carry sheath through epicoele Vein and right atrium arrive postcava porch, (are i.e. put upward by the biovalve opening direction of first support in vitro After entering postcava, the opening direction of biovalve is towards postcava) place, by the cooperation of loader and push rod by the One support takes in sheath, along conveying sheath, from right atrium, first support is pushed to postcava porch, discharges and fix, as Shown in Fig. 4 (a).Then regain push rod, load second support so that it is the opening direction of biovalve (is i.e. put into down After superior vena cava, the opening direction of biovalve is towards superior vena cava), take in sheath pipe by the cooperation of loader and push rod, Along conveying sheath by second stent pushing to superior vena cava to the porch of right atrium, discharge and fix, as shown in Fig. 4 (b). Finally withdraw from push rod and sheath pipe.

Postcava implanted:

First femoral vein makes breach, by conveying sheath along femoral vein blood tube passage, arrives right atrium superior vena cava through iliac vein Porch, in vitro by the biovalve opening direction of first support upward (after i.e. putting into superior vena cava, opening of biovalve Mouth direction is towards superior vena cava) place, by the cooperation of loader and push rod by first support income sheath pipe, along conveying sheath First support is pushed to superior vena cava porch from right atrium, discharges and fix, as shown in Fig. 5 (a).Then propelling movement is regained Bar, loads second support so that it is the opening direction of biovalve down (after i.e. putting into postcava, opening of biovalve Mouth direction is towards postcava), take in sheath pipe by the cooperation of loader and push rod, along conveying sheath by second stent pushing To right atrium to inferior caval porch, discharge and fix, as shown in Fig. 5 (b).Finally withdraw from push rod and sheath pipe.

This utility model only allows blood flow one-way flow, and the support being placed in superior vena cava can only allow blood flow from epicoele Vein flow into right atrium and can not reverse flow, the support being placed in postcava can only allow blood flow from postcava flow into Right atrium and can not reverse flow.

This utility model uses delivery sheath to carry by the way of percutaneous is got involved, and can be self-inflated release, it is also possible to It is that ball expands formula release.

This utility model is sewed with two the support of biovalve and implants respectively and be fixed in superior and inferior vena cava, its effect Be make the venous blood in superior and inferior vena cava tightly can flow to right atrium and can not reverse flow, guide the one-way flow of venous blood.This Right room and right ventricle are merged into a chamber by the principle planting Therapeutic Method, when diastole, the biovalve in superior and inferior vena cava Three flap are opened, and venous blood flows into right room and right ventricle by superior and inferior vena cava；When the heart contracts, this three flap is closed, and stops Blood circulation, blood arrives pulmonary by valve of pulmonary trunk inflow pulmonary artery and carries out oxygen exchange.

As it is shown on figure 3, at paradoxical expansion, venous blood backflows after right atrium from right ventricle, because of superior and inferior vena cava valve Support only allows blood one-way flow to rest in right atrium.Right atrium and right ventricle are merged into an entirety, and upper and lower cavity is quiet The support of arteries and veins instead of the function of tricuspid valve.

So prevent from venous blood and backflow into superior and inferior vena cava, it is ensured that enough venous blood flows into pulmonary and carries out oxygen Exchange.And alleviate the load of right ventricle so that it is return to normal condition.

This utility model is mainly used in treating severe tricuspid regurgitation and backflows.

Claims (6)

1. the split type valve bracket assembly treating tritubercular cycloid, it is characterised in that include two supports, each support It is barrel-like structure, in each support, is all sewed with a biovalve.

A kind of split type valve bracket assembly treating tritubercular cycloid, it is characterised in that described Biovalve be located at the centre position of support.

A kind of split type valve bracket assembly treating tritubercular cycloid, it is characterised in that described Two supports staggered relatively, the opening direction of two biovalves in two supports is all to venacaval depths.

A kind of split type valve bracket assembly treating tritubercular cycloid, it is characterised in that described Two supports be implanted in respectively in superior and inferior vena cave.

5. a kind of split type valve bracket assembly treating tritubercular cycloid as described in claim 3 or 4, it is characterised in that A described stenter to implant is in superior vena cava, and the biovalve opening direction in this support is towards superior vena cava；Another Frame is implanted in postcava, and the biovalve opening direction in this support is towards postcava.

A kind of split type valve bracket assembly treating tritubercular cycloid, it is characterised in that described Biovalve be three-clove style biovalve.