CN2668072Y - Self-retracting antiskid thorn-shaped filter - Google Patents
Self-retracting antiskid thorn-shaped filter Download PDFInfo
- Publication number
- CN2668072Y CN2668072Y CNU2003201287862U CN200320128786U CN2668072Y CN 2668072 Y CN2668072 Y CN 2668072Y CN U2003201287862 U CNU2003201287862 U CN U2003201287862U CN 200320128786 U CN200320128786 U CN 200320128786U CN 2668072 Y CN2668072 Y CN 2668072Y
- Authority
- CN
- China
- Prior art keywords
- filter
- skid
- pricks
- thorn
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000006698 induction Effects 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010047249 Venous thrombosis Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
A self-retracting anti-skid thorn type filter comprises a support body, a filter part, a taking-out hook and an anti-skid thorn. The anti-skid pricks and the filter part are integrated, the connecting ring is arranged between the anti-skid pricks and the filter part, the anti-skid pricks can change an included angle with the support body along with the filter part, and the tip planes of the anti-skid pricks are parallel to the filter. The utility model has the advantages that: because the anti-skid pricks are integrated with the filter part and are connected with the support body in a ring mode, when the diameter of the filter is reduced, the pricks can retract into the filter, the wall of the guide pipe is prevented from being scratched, the conveying resistance is reduced, the phenomenon that the filter is clamped in the guide pipe is prevented, and the filter can be taken out more conveniently.
Description
Technical field:
This utility model belongs to the intervention medical device of a kind of medical device product, particularly a kind of Self-retracted antiskid spine type strainer.
Background technology:
Self-retracted antiskid spine type strainer (hereinafter to be referred as filter) is a kind of intervention medical device that is specifically designed to mortality lung infraction due to the prevention venous thrombosis.Since sixties Mo, filter came out, existing both at home and abroad tens kinds of products were widely used in clinical.But at present the most practical a kind of be " vena cava filter " (patent No. is ZL01248188.2), be both in ten days, to take out the dual-purpose filter that can forever put again.No matter this filter is on technology, still on the deploying type shape, compare all and improve a lot with filter in the past, but it still has the following disadvantages: 1, the direction of anti-skidding thorn is changeless, this just makes filter scratch induction system easily in course of conveying, the end of keeping away that filter is stuck in induction system and can not moves forward also can appear, the serious consequence that causes operation to stop.2, be welded on the filter supporter owing to anti-skidding thorn, thus production cost increased, and have problems such as quality of welding spot, wire annealing, make the quality of filter itself and safety be difficult to guarantee.
Summary of the invention:
The purpose of this utility model provides a kind of filter, the anti-skidding thorn of this filter bounces back in it is sent to delivery conduit the time automatically, has reduced transporting resistance, has avoided the damage of anti-skidding thorn to tube wall, overcome the phenomenon appearance that filter blocks in delivery conduit, more helped the taking-up of filter.
The purpose of this utility model is achieved in that it comprises supporter, filter house, taking-up hook and anti-skidding thorn, and anti-skidding thorn is located on filter house and the connecting ring that supporter is connected, and it can change direction along with the filter diameter variation.
Advantage of the present utility model and effect are: because anti-skidding thorn and filter house are one, and become ring type to be connected with supporter, so when the filter diameter reduces (hour be to be admitted in the delivery conduit), this thorn can bounce back in the filter, avoid scratching conduit, reduce transporting resistance, prevent that the taking-up of the filter of being more convenient for from appearring in the phenomenon that filter blocks in conduit.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is anti-skidding thorn and supporter connection diagram.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
See Fig. 1-2, this utility model concrete structure is as follows: when filter house 2 was connected with supporter 1 ring, the ring end steel wire of filter house 2 continued to prolong, and forms anti-skidding thorn 4 and most advanced and sophisticated plane 5 thereof.When the filter reduced, the angle of filter house 2 reduces, and anti-skidding thorn 4 is that rotate in the counterclockwise direction at the center with the connecting ring, up to should stinging withdrawal, and makes the most advanced and sophisticated plane 5 of thorn parallel with supporter and catheter wall.It is constant in the center of filter to keep taking out hook 3 in the diameter contraction process.
Claims (1)
1. Self-retracted antiskid spine type strainer, comprise supporter, filter house, taking-up hook and anti-skidding thorn, it is characterized in that: anti-skidding thorn (4) is an one with filter house (2), be connecting ring between the two, anti-skidding thorn (4) can be with the angle between filter house (2) change and the supporter (1), and anti-skidding perverse most advanced and sophisticated plane is parallel with filter house.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2003201287862U CN2668072Y (en) | 2003-12-26 | 2003-12-26 | Self-retracting antiskid thorn-shaped filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2003201287862U CN2668072Y (en) | 2003-12-26 | 2003-12-26 | Self-retracting antiskid thorn-shaped filter |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2668072Y true CN2668072Y (en) | 2005-01-05 |
Family
ID=34439419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2003201287862U Expired - Fee Related CN2668072Y (en) | 2003-12-26 | 2003-12-26 | Self-retracting antiskid thorn-shaped filter |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2668072Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100384389C (en) * | 2003-12-30 | 2008-04-30 | 徐林 | Self-retracting antiskid thorn-shaped filter |
CN102811679A (en) * | 2009-12-23 | 2012-12-05 | 亭阁医疗创新公司 | Reversible Vascular Filter Devices And Methods For Using Same |
-
2003
- 2003-12-26 CN CNU2003201287862U patent/CN2668072Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100384389C (en) * | 2003-12-30 | 2008-04-30 | 徐林 | Self-retracting antiskid thorn-shaped filter |
CN102811679A (en) * | 2009-12-23 | 2012-12-05 | 亭阁医疗创新公司 | Reversible Vascular Filter Devices And Methods For Using Same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |