CN106618794A - Octopus-type retrievable vena cava filter - Google Patents
Octopus-type retrievable vena cava filter Download PDFInfo
- Publication number
- CN106618794A CN106618794A CN201710010396.1A CN201710010396A CN106618794A CN 106618794 A CN106618794 A CN 106618794A CN 201710010396 A CN201710010396 A CN 201710010396A CN 106618794 A CN106618794 A CN 106618794A
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- CN
- China
- Prior art keywords
- connecting rod
- net
- vena cava
- upper connecting
- supporting
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to an octopus-type retrievable vena cava filter which is composed of a retrievable hook, a connecting release nut, an upper connecting rod, a supporting rod, a net supporting rod, filter grids, a middle connecting pipe, a lower connecting rod, fixing barbs and supporting legs. One end of the filter is provided with a thrombus filter net with the supporting rod to achieve the supporting and filtering effects, the other end of the filter is provided with the six supporting legs, the legs contain the fixing barbs to achieve the supporting and fixing effects, and product inclination and slipping can be avoided. After a product is expanded, a gap is formed between the supporting rod and the net supporting rod, only the supporting rod, the supporting legs and the fixing barbs make contact with the vascular wall inside a blood vessel, and vascular proliferation tissue can only wrap the supporting rod, the supporting legs and the fixing barbs. The supporting rod and the supporting legs are of a semi-closed rod-shaped structure, and after being wrapped by the proliferation tissue, the components can be easily scattered from the hook end without tearing off intimal hyperplasia tissue, the vascular tearing risk is lowered, and the patient in-vitro embedded time of the product becomes longer correspondingly.
Description
Technical field
Patent of the present invention is related to a kind of cardiovascular system medicine equipment, in specifically a kind of recyclable filter chamber vein blood vessel
Swim thrombus, the thrombus filter for preventing pulmonary embolism, pulmonary infarction to occur.
Background technology
The recyclable venous filter in lantern-shaped chamber for occurring in the market or net shape retrievable vena cava filter, are implanted into people
As Implantation Time is elongated after body, product is more by vascellum endometrial hyperplasia tissue encapsulation.Because the structure of product is totally enclosed type,
Vascellum endometrial hyperplasia organizes total length inside product structure, in Product recycling, needs vascellum endometrial hyperplasia torn tissue
Can by product spread from patient's blood vessel wall from.Implantation Time is longer, and the hyperplastic tissue of product wrapping is more, during Product recycling,
The hyperplastic tissue of tear is more, reclaims more difficult, and the risk that patient's blood vessel is torn is also higher, for the sake of security,
Product Implantation Time is just shorter.
The content of the invention
In order that product is longer in the time being implanted in patient body, reduce the damage organized to patient's blood vessel during Product recycling
Wound, improves the security of product, and the technical solution of the present invention is：A kind of octopus type retrievable vena cava filter is provided,
The product one end is that thrombus with support bar filters net, plays support and filters thrombus effect, and the other end is six supporting legs, leg
It is upper perverse containing fixation, rise and support and fixation, and can prevent product from inclining and slipping.
The present invention by reclaim hook, Connection Release nut, upper connecting rod, support bar, net support bar, filter grid, in
Between connecting tube, lower connecting rod, fixed hangnail, supporting leg composition.
Reclaim hook, upper connecting rod, net support bar, support bar, filter grid, intermediate connection tube, lower connecting rod, fixation
Hangnail, supporting leg are integrally formed by Nitinol pipe Jing laser engravings, and Connection Release nut is by nickel-titanium alloy material or stainless steel
Materials processing is formed.
The present invention reclaims the built-in Connection Release nut of hook, is followed by 6 upper connecting rods, and 6 upper connecting rods are in 360 degree etc.
It is connected with hook is reclaimed away from arrangement, upper connecting rod bar width is in 0.2mm～0.9mm.
Upper connecting rod one end is connected with hook is reclaimed, and the other end is connected with a net support bar, and both junctions have one
Strut, support bar totally 6, the outside 360 degree of arranged in co-axial alignment of 6 support bars, after product expansion 6 support bars tips place formed outward
Footpath is in 5mm～50mm.6 support bars can wait radius to arrange, also can the radius arrangement such as 3 support bars, another 3 support bars etc. half
Footpath arranges, and 6 support bars are arranged in concentric double ring.
Above-mentioned recovery hook can also be followed by 3 upper connecting rods, and upper connecting rod bar width is in 0.2mm～0.9mm, and upper connecting rod is another
One end is divided into two, and a net support bar is respectively connect after bifurcated, forms another case structure.
Long 5mm～the 50mm of above-mentioned net support bar, sum is 6, and each net support bar is followed by a filter grid, is filtered
Grid sum is 6,6 filter grids altogether side be arranged side by side surround 360 degree it is netted, each filter grid is most after product expansion
Big width is 2～8mm, and the filter grid other end converges at intermediate connection tube.
Upper connecting rod, net support bar, filter grid form an enclosed construction net, product expansion rear enclosed structure net
A diameter of 10mm～30mm.
After product expansion, support bar is with net support bar maximum spacing in 15mm-50mm.
Intermediate connection tube is followed by 3～12 lower connecting rods, is preferential with 6 lower connecting rods.Lower connecting rod is equidistant in 360 degree
It is arranged in the intermediate connection tube other end.
Each lower connecting rod is followed by a supporting leg, and supporting leg quantity is 3～12, is preferential, the length of supporting leg with 6
For 5mm～50mm.
When lower connecting rod and supporting leg quantity are 6, radius arrangement can be waited with 6, it is also possible to which 3 are waited radius to arrange, another 3
It is individual that concentric bilayer shape structure is arranged in radiuses such as another radiuses, when being arranged in concentric bilayer structure, between farthest between two-layer
Gap is 0.5mm～30mm.
Carving has a fixation hangnail between each lower connecting rod and supporting leg, and after product expansion hangnail and the product longitudinal axis are fixed
Into 15～an angle of 90 degrees, when product shrinks, fixed hangnail is shunk automatically.Spacing between fixed hangnail and intermediate connection tube is in 3-
20mm。
The present invention effective benefit be：After product expansion, an intersegmental gap is formed between support bar and net support bar, in blood
Only have support bar, supporting leg, fixed hangnail to contact with vascular wall when in pipe, such vascellum endometrial hyperplasia tissue can only coat support
Bar, supporting leg, fixed hangnail.Product support bar and supporting leg are again semiclosed rod-like structures, are being coated by endometrial hyperplasia tissue
Afterwards, can be easy to from hook end spread out spread out without tearing endometrial hyperplasia organizing ability, what such patient's blood vessel was torn
Risk is also just reduced, and product is also just corresponding elongated in the time of patient's et al. Ke.
Description of the drawings
Fig. 1 is schematic diagram in intravascular of the invention.
Fig. 2 is the structural representation of case 1.
Fig. 3 is the right view of case 1.
Specific embodiment
Below according to explanation accompanying drawing, the invention will be further described：
As shown in Fig. 2 examples 1, product is by reclaiming hook 9, Connection Release nut 10, upper connecting rod 8, support bar 7, net support bar
6th, filter grid 5, intermediate connection tube 4, lower connecting rod 3, fixed hangnail 2, supporting leg 1 are constituted.
Reclaim hook 9, upper connecting rod 8, net support bar 6, support bar 7, filter grid 5, intermediate connection tube 4, lower connection
Bar 3, fixed hangnail 2, supporting leg 1 are integrally formed by Nitinol pipe Jing laser engravings, and Connection Release nut 10 is by Nitinol
Material or stainless steel material are processed.
The present invention reclaims 9 built-in Connection Release nuts 10 of hook, and being followed by 6 upper connecting rods, 8,6 upper connecting rods 8 is in
360 degree of equidistant arrangements are connected with hook 9 is reclaimed, and the bar width of upper connecting rod 8 is in 0.2mm～0.9mm.
The one end of upper connecting rod 8 is connected with hook 9 is reclaimed, and the other end is connected with a net support bar 6, and both have one in junction
Support bar 7, support bar 7 totally 6, the outside 360 degree of arranged in co-axial alignment of 6 support bars, after product expansion 6 support bars 7 it is sophisticated at shape
Into external diameter in 5mm～50mm.6 support bars can wait radius to arrange, also can the radius arrangement such as 3 support bars, another 3 supports
The radiuses such as bar are arranged, and 6 support bars are arranged in concentric double ring.
Long 5mm～the 50mm of above-mentioned net support bar 6, sum is 6.Each net support bar 6 is followed by a filter grid 5,
Filter grid sum is 6,6 filter grids altogether side be arranged side by side surround 360 degree it is netted.Each filter grid after product expansion
Breadth Maximum be 2～8mm, the filter grid other end converges at intermediate connection tube 4.
Upper connecting rod 8, net support bar 6, filter grid 5 form an enclosed construction net, product expansion rear enclosed structure
A diameter of 10mm～30mm of net.
Intermediate connection tube 4 is followed by 3～12 lower connecting rods 3, is preferential with 6 lower connecting rods.Lower connecting rod 3 is in 360 degree
Equidistant arrangement is in the other end of intermediate connection tube 4.
Each lower connecting rod 3 is followed by a supporting leg 1, and supporting leg quantity is 3～12, be with 6 it is preferential, supporting leg 1
Length is 5mm～50mm.
When lower connecting rod 3 and the quantity of supporting leg 1 are 6, radius arrangement can be waited with 6, it is also possible to which 3 are waited radius arrangement,
Another 3 are arranged in concentric bilayer shape structure with radiuses such as another radiuses.It is farthest between two-layer when being arranged in concentric bilayer structure
Gap is 0.5mm～30mm.
Carving has a fixation hangnail 2 between each lower connecting rod 3 and supporting leg 1, and when product shrinks, fixed hangnail is received automatically
Contracting, when product expands, fixed hangnail automatic expansion, the spacing between fixed hangnail and intermediate connection tube is in 3mm～20mm.
The above, representative instance only of the present invention, be not used in restriction the present invention, it is all on the basis of the present invention improve and
The example of extension is within protection scope of the present invention.
Claims (10)
1. a kind of octopus type retrievable vena cava filter, by reclaiming hook, Connection Release nut, upper connecting rod, support bar, basket
Net support bar, filter grid, intermediate connection tube, lower connecting rod, fixed hangnail, supporting leg composition, is characterized in that one end is band
The thrombus of strut filters net, plays support and filter thrombus acting on, and the other end is six supporting legs, perverse containing fixation on leg, rises and props up
Support and fixation, and can prevent product from inclining and slipping.
2. a kind of octopus type retrievable vena cava filter according to right 1, is further characterized in that the built-in company of recovery hook
Release nut is connect, 6 upper connecting rods are followed by, 6 upper connecting rods are connected in 360 degree of equidistant arrangements with hook is reclaimed, upper connecting rod
Bar width is in 0.2mm～0.9mm.
3. a kind of octopus type retrievable vena cava filter according to right 1, is further characterized in that upper connecting rod one end and returns
Hook connection is received, the other end is connected with a net support bar, there are a support bar, support bar totally 6,6 supports in both junctions
The outside 360 degree of arranged in co-axial alignment of bar, product expansion after 6 support bars 7 it is sophisticated at formation external diameter in 5mm～50mm.
4. a kind of octopus type retrievable vena cava filter according to right 3, is further characterized in that 6 support bars can wait half
Footpath arranges, also can the radius arrangement such as 3 support bars, the radius arrangement such as another 3 support bars, 6 support bars arrange in concentric double ring.
5. a kind of octopus type retrievable vena cava filter according to right 1, is further characterized in that recovery hook can also be followed by 3
Root upper connecting rod, upper connecting rod bar width is divided into two in 0.2mm～0.9mm, the upper connecting rod other end, and a net is respectively connect after bifurcated
Support bar.
6. a kind of octopus type retrievable vena cava filter according to right 1, be further characterized in that the long 5mm of net support bar～
50mm, sum is 6, and each net support bar is followed by a filter grid, and filter grid sum is 6,6 filter grids side altogether
Be arranged side by side surround 360 degree it is netted, product expansion after each filter grid Breadth Maximum be 2～8mm.
7. a kind of octopus type retrievable vena cava filter according to right 1, is further characterized in that upper connecting rod, net are supported
Bar, filter grid form an enclosed construction net, and product expands a diameter of 10mm～30mm of rear enclosed structure net.
8. a kind of octopus type retrievable vena cava filter according to right 1, be further characterized in that intermediate connection tube be followed by 3～
12 lower connecting rods, are preferential with 6 lower connecting rods.
9. a kind of octopus type retrievable vena cava filter according to right 1, is further characterized in that each lower connecting rod is followed by
One supporting leg, supporting leg quantity is 3～12, is preferential with 6, and the length of supporting leg 1 is 5mm～50mm.
10. a kind of octopus type retrievable vena cava filter according to right 1, is further characterized in that lower connecting rod and supporting leg
When quantity is 6, radius arrangement can be waited with 6, it is also possible to which 3 are waited radius arrangement, and another 3 are arranged in radiuses such as another radiuses
Concentric bilayer shape structure, when being arranged in concentric bilayer structure, the farthest gap between two-layer is 0.5mm～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010396.1A CN106618794A (en) | 2017-01-06 | 2017-01-06 | Octopus-type retrievable vena cava filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010396.1A CN106618794A (en) | 2017-01-06 | 2017-01-06 | Octopus-type retrievable vena cava filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106618794A true CN106618794A (en) | 2017-05-10 |
Family
ID=58844316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710010396.1A Pending CN106618794A (en) | 2017-01-06 | 2017-01-06 | Octopus-type retrievable vena cava filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106618794A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280807A (en) * | 2017-06-28 | 2017-10-24 | 上海宏普医疗器械有限公司 | A kind of semiclosed dual-gripper recoverable version vena cava filter |
| CN108272530A (en) * | 2017-03-06 | 2018-07-13 | 上海宏普医疗器械有限公司 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
| CN109248006A (en) * | 2018-09-25 | 2019-01-22 | 上海形状记忆合金材料有限公司 | A kind of vena cava filter |
| CN109771089A (en) * | 2018-12-21 | 2019-05-21 | 先健科技(深圳)有限公司 | Filter |
| CN111067592A (en) * | 2018-10-22 | 2020-04-28 | 先健科技(深圳)有限公司 | Thrombus taking device |
| CN111388140A (en) * | 2020-02-25 | 2020-07-10 | 于淼 | Vein filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143114A (en) * | 2006-09-14 | 2008-03-19 | 微创医疗器械(上海)有限公司 | Double-layer venous 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 |
| CN103815984A (en) * | 2014-03-11 | 2014-05-28 | 科塞尔医疗科技（苏州）有限公司 | Thrombus filter and release system thereof |
| CN204909721U (en) * | 2015-06-30 | 2015-12-30 | 先健科技(深圳)有限公司 | Filter |
| CN105361974A (en) * | 2015-12-14 | 2016-03-02 | 广东脉搏医疗科技有限公司 | Thrombus filter |
-
2017
- 2017-01-06 CN CN201710010396.1A patent/CN106618794A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143114A (en) * | 2006-09-14 | 2008-03-19 | 微创医疗器械(上海)有限公司 | Double-layer venous 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 |
| CN103815984A (en) * | 2014-03-11 | 2014-05-28 | 科塞尔医疗科技（苏州）有限公司 | Thrombus filter and release system thereof |
| CN204909721U (en) * | 2015-06-30 | 2015-12-30 | 先健科技(深圳)有限公司 | Filter |
| CN105361974A (en) * | 2015-12-14 | 2016-03-02 | 广东脉搏医疗科技有限公司 | Thrombus filter |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272530A (en) * | 2017-03-06 | 2018-07-13 | 上海宏普医疗器械有限公司 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
| CN107280807A (en) * | 2017-06-28 | 2017-10-24 | 上海宏普医疗器械有限公司 | A kind of semiclosed dual-gripper recoverable version vena cava filter |
| WO2019000513A1 (en) * | 2017-06-28 | 2019-01-03 | 上海宏普医疗器械有限公司 | Semi-closed double-supporting recyclable type vena cava filter |
| CN109248006A (en) * | 2018-09-25 | 2019-01-22 | 上海形状记忆合金材料有限公司 | A kind of vena cava filter |
| CN111067592A (en) * | 2018-10-22 | 2020-04-28 | 先健科技(深圳)有限公司 | Thrombus taking device |
| CN111067592B (en) * | 2018-10-22 | 2021-11-26 | 先健科技(深圳)有限公司 | Thrombus taking device |
| CN109771089A (en) * | 2018-12-21 | 2019-05-21 | 先健科技(深圳)有限公司 | Filter |
| CN111388140A (en) * | 2020-02-25 | 2020-07-10 | 于淼 | Vein filter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |