CN205729434U - A kind of concave type occluder for left auricle - Google Patents
A kind of concave type occluder for left auricle Download PDFInfo
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- CN205729434U CN205729434U CN201620094786.2U CN201620094786U CN205729434U CN 205729434 U CN205729434 U CN 205729434U CN 201620094786 U CN201620094786 U CN 201620094786U CN 205729434 U CN205729434 U CN 205729434U
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- left auricle
- concave type
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- support
- spring
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Abstract
The utility model discloses a kind of concave type occluder for left auricle, it is characterised in that including that left auricle card, left auricle card are connected with one end of spring attachment structure, the other end of spring attachment structure is connected with one end of stopper fixing device.Described left auricle card includes support, and support is coated with diaphragm, and described support is made up of at least one spiral branch.This utility model reduces the caliber size of stopper conveyer device, and the part physiological function of reservation left auricle, namely regulates the volume of left atrium, also reduces the risk that thrombosis has taken off.
Description
Technical field
This utility model relates to a kind of concave type occluder for left auricle, and the thrombosis caused for treating atrial fibrillation takes off, and belongs to medical instruments field.
Background technology
During atrial fibrillation, contractile function is lost in atrium, and blood is easily retarded by silt in atrium and forms thrombosis, can cause cerebral embolism (apoplexy), limb artery embolization (severe patient even needs amputation) etc. along with blood to whole body everywhere after thrombus breaks loose.In atrial fibrillation patient, more than ninety percent thrombosis is closely bound up with left auricle；And as modal perpetual arrhythmia, atrial fibrillation sickness rate in general population is 0.5% to 1.5%.The formation of thrombosis in left auricle when preventing atrial fibrillation by closure left auricle, thus reduce patients with atrial fibrillation and caused long term disability or the risk of death by thromboembolism.
At present, the treatment thrombosis that causes of atrial fibrillation taken off be by by the entrance of left auricle with being closed by surgical clamp or by Minimally Interventional Therapy, left auricle stopper being blocked.But operating wound is relatively big, uses occluder for left auricle then to have the possibility of residual shunt, and both modes all can make left auricle lose the function of its regulation left atria volume.
The problem being primarily present:
1, stopper in the market is mainly based on spherical structure, and the most flat left auricle supports after entering left auricle big compressing heart and pulmonary；
2, occluder for left auricle expands the impact of the factors such as volume, causes the delivery sheath used relatively thicker, typically 14～16f, therefore the probability of damage can be caused to strengthen blood vessel after delivery sheath enters human body；
3, left auricle loses original regulation atrial volume, the effect of regulation cardiovascular blood pressure；
4, gap can be there is with left auricle mouth after spherical stopper fills in left auricle, still suffer from causing the possibility of thrombosis.
Summary of the invention
The technical problems to be solved in the utility model is: provides and a kind of has the function of regulation left atria volume, reduces thrombosis and taken off the concave type occluder for left auricle of risk, solves and how to make left atrium can regulate the problem that blood pressure is possible to prevent again thrombosis intravasation.
In order to solve above-mentioned technical problem, the technical solution of the utility model there is provided a kind of concave type occluder for left auricle, it is characterized in that, including left auricle card, left auricle card is connected with one end of spring attachment structure, and the other end of spring attachment structure is connected with one end of stopper fixing device.
Preferably, one end of described spring attachment structure is connected with the center of left auricle card.
Preferably, described left auricle card includes support, and support is coated with diaphragm.
Preferably, described support is nitinol alloy wire support.
Preferably, described support is made up of at least one spiral branch.
Preferably, described spring attachment structure includes spring, is provided with inner core in spring.
Preferably, described spring is Nitinol spring.
Preferably, described inner core is macromolecule inner core.
Preferably, described stopper fixing device is made up of at least 3 interior hooks.
This utility model reduces the caliber size of stopper conveyer device, and the part physiological function of reservation left auricle, namely regulates the volume of left atrium, also reduces the risk that thrombosis has taken off.
This utility model is to reduce occluder for left auricle occupy-place, the function of member-retaining portion regulation left atria volume, and reduces conveyer device sheath pipe diameter:
1, for fixing the supporting structure of stopper, being to be supported for main guarantee with point type, stopper is secured firmly to left auricle mouth, can avoid again excessively supporting big for the support of left auricle volume simultaneously；
2, left auricle mouth helicoidal structure disk structure, left auricle mouth of can effectively fitting, it is to avoid thrombosis is formed in remaining gap；
3, have resilient attachment structure and the unilateral combination of helical form, it is ensured that stopper, along with blood pressure, occurs a certain degree of ceasing to be faithful, and the volume of left atrium is increased or decreased, and retains the function of a part of left auricle；
4, the structure of whole stopper adds laser welding based on silk material, with the amount of metal 30～50% of the use of less stopper, can reduce the weight of implant, reduce the deflection in sheath pipe simultaneously, reduce the diameter 4～2f using sheath pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of concave type occluder for left auricle (3 interior hooks)；
Fig. 2 is the structural representation of a kind of concave type occluder for left auricle (6 interior hooks).
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.
Embodiment 1
This utility model is a kind of concave type occluder for left auricle, as shown in Figure 1 and Figure 2, it includes that left auricle card 1, the center of left auricle card 1 are connected with one end of spring attachment structure 3, and the other end of spring attachment structure 3 is connected with one end of stopper fixing device 2.
Left auricle card 1 includes support 1.1, and support 1.1 is coated with diaphragm 1.2.Support 1.1 is made up of at least one spiral branch.Stopper fixing device 2 is made up of at least 3 interior hooks, is used for fixing and support stopper in left auricle.Spring attachment structure 3 includes spring 3.1, is provided with inner core 3.2 in spring 3.1.
Diaphragm 1.2 is non-degradable macromolecular material, such as politef, polyethylene terephthalate etc..Wherein, in the present embodiment, support 1.1 is nitinol alloy wire support, and diaphragm 1.2 is polytetrafluoroethylene diaphragm.Spring 3.1 is Nitinol spring, and inner core 3.2 is macromolecule inner core.Support 1.1 is made up of three spiral branches, and one end of Nitinol spring is connected to the intersection of three spiral branches, and stopper fixing device 2 is made up of, as shown in Figure 13 interior hooks.
During use, this utility model being put into left atrium, the other end of stopper fixing device 2 (i.e. 3 interior hooks) is fastened on left atrium, and left auricle card 1 is blocked in left atrium porch, anti-tampon intravasation.Owing to having spring attachment structure 3, its elastic reaction to make left atrium still have the effect of regulation blood pressure between left auricle card 1 and left atrium.
The structure of the whole stopper of this utility model adds laser welding based on silk material, with the amount of metal 30～50% of the use of less stopper, can reduce the weight of implant, reduce the deflection in sheath pipe simultaneously, reduce the diameter 4～2f using sheath pipe.
Embodiment 2
In the present embodiment, support 1.1 is made up of a spiral branch, and stopper fixing device 2 is made up of, as shown in Figure 26 interior hooks.Other are same as in Example 1.Diaphragm 1.2 is the degradable high polymer material that may be used for implanting human body, such as polylactic acid etc..
Claims (7)
1. a concave type occluder for left auricle, it is characterized in that, including left auricle card (1), left auricle card (1) is connected with one end of spring attachment structure (3), the other end of spring attachment structure (3) is connected with one end of stopper fixing device (2), described left auricle card (1) includes support (1.1), being coated with diaphragm (1.2) on support (1.1), described support (1.1) is made up of at least one spiral branch.
2. a kind of concave type occluder for left auricle as claimed in claim 1, it is characterised in that one end of described spring attachment structure (3) is connected with the center of left auricle card (1).
3. a kind of concave type occluder for left auricle as claimed in claim 1, it is characterised in that described support (1.1) is nitinol alloy wire support.
4. a kind of concave type occluder for left auricle as claimed in claim 1, it is characterised in that described spring attachment structure (3) includes spring (3.1), is provided with inner core (3.2) in spring (3.1).
5. a kind of concave type occluder for left auricle as claimed in claim 4, it is characterised in that described spring (3.1) is Nitinol spring.
6. a kind of concave type occluder for left auricle as claimed in claim 4, it is characterised in that described inner core (3.2) is macromolecule inner core.
7. a kind of concave type occluder for left auricle as claimed in claim 1, it is characterised in that described stopper fixing device (2) is made up of at least 3 interior hooks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094786.2U CN205729434U (en) | 2016-01-29 | 2016-01-29 | A kind of concave type occluder for left auricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094786.2U CN205729434U (en) | 2016-01-29 | 2016-01-29 | A kind of concave type occluder for left auricle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205729434U true CN205729434U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620094786.2U Active CN205729434U (en) | 2016-01-29 | 2016-01-29 | A kind of concave type occluder for left auricle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205729434U (en) |
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2016
- 2016-01-29 CN CN201620094786.2U patent/CN205729434U/en active Active
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