CN206342563U

CN206342563U - A kind of self-inflated filter holder

Info

Publication number: CN206342563U
Application number: CN201620899940.3U
Authority: CN
Inventors: 蒋林宇; 田文彦
Original assignee: Suzhou Wansi Medical Technology Co Ltd
Current assignee: Suzhou Wansi Medical Technology Co Ltd
Priority date: 2016-08-18
Filing date: 2016-08-18
Publication date: 2017-07-21
Anticipated expiration: 2026-08-18

Abstract

The utility model discloses a kind of self-inflated filter holder, including screen pack, anchor rod, near-end attachment structure and distal end attachment structure, screen pack is shaped after the cutting of NiTi pipe with anchoring and formed, screen pack includes accumulator tank, proximal filter bar, anchor rod, support bar and distal end filtering rod, accumulator tank is used for the convenient whole venous filter support of taking-up after being implanted into, proximal filter bar, distal end filtering rod is used to filter endovascular thrombus, anchor rod is the specified location that vein is coaxially fixed on for filter holder, support bar is to be used to whole filter holder be brought into close contact with blood vessel and keep stability, in the front end of gauze filter, rear end is respectively provided with near-end attachment structure, distal end attachment structure, attachment structure coordinates induction system to enter row vein implantation for different approach positions.The utility model has structure novel, and filtering thrombus is clean, and positioning is reliable, is implanted into, reclaims the characteristics of facilitating.The filter holder has excellent developing property, is easy to tracking and location determination.

Description

A kind of self-inflated filter holder

Technical field

The utility model is related to a kind of interventional medical device, more specifically a kind of self-inflated filter holder, and it is used Niti-shaped memorial alloy is processed.

Background technology

At present, pulmonary embolism (pulmonary embolism) refers to that caulked material enters pulmonary artery and its branch, blocking group Knit the pathology and clinical state caused by blood supply.Its cause of disease is extensive, including：The hypercoagulative state of blood, such as by wound, greatly Operation, childbirth, tumour, take contraceptive, smoking, heredity dysfunction of blood coagulation situations such as cause；The damage of wall of vein, such as Situations such as by performing the operation, fracturing, infect, causes；The flowing of blood is slow, such as is drawn by sitting, long-range flight, long sleeping, atrial fibrillation etc. Rise.

In the market popular vena cava filter exist insert after blood vessel the recyclable cycle after position movement, implantation it is short, Recovery easily caused when having some setbacks, reclaiming blood vessel damage, filtering thrombus not thoroughly, thrombus is the problems such as leave.Manufacturing Aspect, the traditional vena cava filter of in the market is mostly using the design of double end boundling so that the nickel-titanium shape memory needed for production is closed Golden pipe length is partially long, it is difficult to shape, and production cost is too high.

The content of the invention

Technical problem to be solved in the utility model is to overcome the defect of prior art there is provided a kind of self-inflated filter branch Frame, it has structure novel, and filtering thrombus is clean, and positioning is reliable, is implanted into, reclaims the characteristics of facilitating.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of self-inflated filter holder, including mistake Filter screen, near-end attachment structure and distal end attachment structure, screen pack are shaped after the cutting of NiTi pipe and formed, and screen pack includes reclaiming Groove, proximal filter bar, anchor rod, support bar and distal end filtering rod.

Specifically, the accumulator tank cuts into hook type, and the tail end rounding of the accumulator tank, to reclaim filter Will not be stuck with conduit during support.

Specifically, the near-end attachment structure fixes an inner nut in NiTi pipe near-end, in order to induction system phase Even.

Specifically, the distal end filtering rod is set to 6.

Specifically, the anchor rod is set to 6.

Specifically, the support bar is set to 6.

Specifically, the distal end filtering rod is set to petal, and quantity is 6.

Specifically, the distal end attachment structure fixes an inner nut in NiTi pipe distal end.

The beneficial effects of the utility model are：After the expansion completely of this self-inflated filter holder, accurate positioning, mistake in the blood vessels Filter is cleaner, and conveying is accurate, and reclaimer operation is simple, reliable.The filter holder has excellent developing property, is easy to tracking And location determination.

Brief description of the drawings

Fig. 1 is the axonometric schematic diagram of self-inflated filter holder of the present utility model；

Fig. 2 is the main structure diagram of self-inflated filter holder of the present utility model；

Fig. 3 is the right side structural representation of self-inflated filter holder of the present utility model；

Fig. 4 is the structural representation of accumulator tank of the present utility model；

Fig. 5 is the schematic diagram of near-end attachment structure of the present utility model；

Fig. 6 is the schematic diagram of distal end attachment structure of the present utility model；

In figure, 1 is accumulator tank, and 2 be near-end attachment structure, and 3 be proximal filter bar, and 4 be anchor rod, and 5 be support bar, and 6 are Distal end filtering rod, 7 be distal end attachment structure.

Embodiment

In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached Figure, is described in further detail to the utility model.

As shown in figs. 1 to 6, a kind of self-inflated filter holder, including screen pack, near-end attachment structure 2 and distal end connection knot Structure 7, screen pack is after the cutting of NiTi pipe successively using laser engraving, internal and side polishing, sandblasting, cleaning, laser welding, heat It is fabricated by after the multiple tracks techniques such as processing sizing, electrochemical polish and passivation, screen pack includes accumulator tank 1, proximal filter Bar 3, anchor rod 4, support bar 5 and distal end filtering rod 6, accumulator tank 1 are used for the convenient whole venous filter support of taking-up after being implanted into, closely End filtering rod 3, distal end filtering rod 6 are used to filter endovascular thrombus, and anchor rod 4 is coaxially to be fixed on vein for filter holder Specified location, support bar 5 is to be brought into close contact for whole filter holder with vascular wall, is respectively set in the front end of screen pack, rear end There are near-end attachment structure 2, distal end attachment structure 7, it is quiet that attachment structure coordinates induction system to be carried out for different approach positions Arteries and veins is implanted into.

Particular embodiments described above, enters to technical problem, technical scheme and the beneficial effect that the utility model is solved Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without It is all within spirit of the present utility model and principle in limitation the utility model, any modification, equivalent substitution and improvements done Deng should be included within protection domain of the present utility model.

Claims

1. a kind of self-inflated filter holder, including screen pack, near-end attachment structure (2) and distal end attachment structure (7), screen pack by Shape and forms after the cutting of NiTi pipe, screen pack including accumulator tank (1), proximal filter bar (3), anchor rod (4), support bar (5) and Distal end filtering rod (6).

2. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The accumulator tank (1) cuts into hook Subtype, and the tail end rounding of the accumulator tank (1).

3. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The near-end attachment structure (2) exists One inner nut of welding in NiTi pipe near-end.

4. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The distal end filtering rod (6) is set to 6 Root.

5. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The anchor rod (4) is set to 6.

6. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The support bar (5) is set to 6.

7. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The distal end filtering rod (6) is set to Petal, quantity is 6.

8. a kind of self-inflated filter holder according to claim 1, it is characterised in that：The distal end attachment structure (7) exists One inner nut of welding in NiTi pipe distal end.