CN108272530A - A kind of recyclable Caval vein thrombus filter of double umbellate forms - Google Patents
A kind of recyclable Caval vein thrombus filter of double umbellate forms Download PDFInfo
- Publication number
- CN108272530A CN108272530A CN201710129484.3A CN201710129484A CN108272530A CN 108272530 A CN108272530 A CN 108272530A CN 201710129484 A CN201710129484 A CN 201710129484A CN 108272530 A CN108272530 A CN 108272530A
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- CN
- China
- Prior art keywords
- umbrella
- product
- caval vein
- vein thrombus
- support bar
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- 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
- 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
- A61F2002/018—Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
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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 present invention relates to a kind of double recyclable Caval vein thrombus filters of umbellate form, are made of upper and lower two umbrella-shaped structures.Top umbrella-shaped structure is made of recycling hook, connection inner nut, hangnail, upper support bar, and lower part umbrella-shaped structure is made of connecting tube, diamond shape filter screen, lower support bar.Since the single umbrella Caval vein thrombus filter occurred in the market washes away lower easy inclination in blood flow, cause capture thrombus bad.Furthermore single umbrella filter is contacted with vascular wall contact site for filament, and which easily leads to vascular wall puncture, or even stabs tissue, nerve etc. outside vascular wall.Product provides a kind of upper layer and lower layer umbrella-shaped structure, can effectively keep balance of the product in the case where blood flow washes away, furthermore the lower support bar of the product is bent for radial inward, can prevent product supporting rod from piercing through vascular wall, stabs tissue, nerve etc. outside patient vessel's wall.The thrombus capture rate of product not only can be improved in the present invention, is also greatly improved the safety that patient uses.
Description
Technical field
The invention patent relates to a kind of cardiovascular system medical instrument, in specifically a kind of recyclable filter chamber venous system
Swim thrombus, prevents pulmonary embolism, the Caval vein thrombus filter that pulmonary infarction occurs.
Background technology
With the appearance of thrombus filtering unit in the market, more and more patients select implantation thrombus filtering units to prevent
Pulmonary embolism, pulmonary infarction.But according to the literature, using the patient after single umbrella vena cave thrombus filtering unit, in follow-up follow-up
During tracking, it equally will appear thrombus filtering unit inclination, lead to that the thrombus that swims in vein blood vessel cannot be filtered, cause once again
Patient's pulmonary embolism, pulmonary infarction.Furthermore the single umbrella thrombus filtering unit occurred in the market, since such product is to lean on filament
Being pierced into venous blood tube wall prevents from slipping, and the mode of action is under the contraction of human vas and the extruding of tissue
Under, it easily causes such product filament and pierces through vascular wall, or even cause to pierce through extravascular tissue, nerve after piercing through vascular wall
Deng causing unpredictable accident.
Invention content
For the thrombus filtering unit for preventing from being used in patient body, there is above-described product inclination, product pierces blood
Tube wall, technical solution of the invention are:A kind of thrombus filter containing double umbrella structures is provided, this filter is under actinoscopy X
It can accurately be discharged to patient's body target site by transport system.Two umbrella-shaped structures can make product in blood vessel to the present invention up and down
Two contact with vascular wall above and below interior, prevent product one end from washing away lower inclination in blood.The present invention contacts down with vascular wall
Portion's supporting bar structure while playing support blood vessels wall, prevents product supporting rod from piercing through blood vessel using the inside warp architecture of diameter
Wall stabs tissue, nerve etc. outside patient vessel's wall.Two umbrella-shaped structures up and down of the present invention can also form upper layer and lower layer filtering
Net improves product thrombus filter efficiency.
The present invention is made of upper and lower two umbrella-shaped structures.Top umbrella-shaped structure by recycling hook, connection inner nut, hangnail,
Upper support bar forms；Lower part umbrella-shaped structure is made of connecting tube, diamond shape filter screen, lower support bar.
Top umbrella-shaped structure connection inner nut is process by nickel-titanium alloy material, recycling hook, hangnail, upper support bar
It is integrally formed through laser engraving by Nitinol pipe, connection inner nut is connected with recycling hook through laser welding.
Lower part umbrella-shaped structure connecting tube, diamond shape filter screen, lower support bar by Nitinol pipe through laser engraving one and
At.
There are top umbrella-shaped structure 6 upper support bars, 6 360 degree of upper support bars etc. point arrangement to connect with recycling hook
It connects.
The S-type bending when product expands of upper support bar, one connects with recycling hook, after the bending of other end linearly
Rod-shaped, the length of straight line pole is 1mm~20mm.
It is in 15 degree~75 degree angle hangnails, hangnail when product expands that upper support rod bending section has one with straightway junction
Automatically it struts, hangnail is shunk automatically when product is shunk, and is integrated with product.
Lower part umbrella-shaped structure is made of 6 diamond shape filter screens, and 360 degree of arranged adjacents are connected with connecting tube.
Lower support bar is convexly curved, and one end is connect with diamond shape filter screen vertex, and the other end is in 15 °~175 ° angle courts
Diameter curves inwardly.6 lower support bars are connected with diamond shape filter screen vertex respectively, 360 degree of equidistant arrangements.
The effective benefit of the present invention is that two umbrella-shaped structures can make product two and vascular wall up and down in the blood vessels up and down
Contact, prevents product one end from washing away lower inclination in blood.The lower support rod structure of the present invention, using the inside warp architecture of diameter,
It while playing support blood vessels wall, prevents product supporting rod from piercing through vascular wall, stabs tissue, nerve etc. outside patient vessel's wall.
Two umbrella-shaped structures up and down of the present invention can also form upper layer and lower layer filter screen, improve product thrombus filter efficiency.
Description of the drawings
Fig. 1 is that two umbrella-shaped structures separate schematic diagram to this example up and down.
Fig. 2 is the overall structure diagram of this example.
Specific implementation mode
Below according to attached drawing is illustrated, the invention will be further described：
Double recyclable Caval vein thrombus filters of umbrella shape as described in Figure 1 are by the top portions umbrella-shaped structure A and the lower part portions umbrella-shaped structure B
Composition.
The top portions umbrella-shaped structure A are made of recycling hook 1, connection inner nut 2, hangnail 3 and upper support bar 4.Recycling is hung
Hook 1, hangnail 3 and upper support bar 4 are formed by Nitinol pipe through laser engraving.
The lower part portions umbrella-shaped structure B are made of connecting tube 5, diamond shape filter screen 6 and lower support bar 7.Connecting tube 5, diamond shape mistake
Strainer 6 and lower support bar 7 are formed by Nitinol pipe through laser engraving.
Inner nut 2 is connected through laser welding inside recycling hook 1, recycling hook 1 is followed by upper support bar 4, top branch
Strut 4 is evenly distributed in 1 rear end of recycling hook, is arranged at 360 degree.
The 4 S-shaped bending of upper support bar, one connect with recycling hook rear end, linearly rod-shaped after the bending of other end, directly
The length of line bar is 1mm~20mm.
It is in 15 degree~75 degree angle hangnails 3 that the bending section of upper support bar 4 has one with straight line pole junction, and product falls when expanding
Thorn struts automatically, and hangnail is shunk automatically when product is shunk, and is integrated with product.
The lower part portions umbrella-shaped structure B connecting tube 5 is followed by 6 neighboring diamonds filter screens, 6,6 diamond shape filter screens in 360 degree of rows
Row.
Each 6 vertex of diamond shape filter screen is followed by a lower part supporting rod 7,7,6 lower support bars 7 of totally 6 lower support bars
In 360 degree of equidistant arrangements.
Lower support bar 7 is convexly curved, and one end is connect with 6 vertex of diamond shape filter screen, and the other end is in 15 °~175 ° angles
Bending in radially.
The above, representative instance only of the present invention, be not used in limitation 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 (7)
1. a kind of recyclable Caval vein thrombus filter of double umbellate forms, it is characterized in that being made of upper and lower two umbrella-shaped structures, top umbrella
Shape structure is made of recycling hook, connection inner nut, hangnail, upper support bar；Lower part umbrella-shaped structure is filtered by connecting tube, diamond shape
Net, lower support bar composition.
2. a kind of recyclable Caval vein thrombus filter of double umbellate forms according to claim 1, it is further characterized in that top umbrella
Structure has 6 upper support bars, 6 360 degree of upper support bars etc. point arrangement and recycling hook connection.
3. a kind of recyclable Caval vein thrombus filter of double umbellate forms according to claim 2, it is further characterized in that upper support
Bar S-type bending when product expands, one and recycling hook connection, linear rod-shaped, the length of straight line pole after the bending of other end
Degree is 1mm~20mm.
4. a kind of recyclable Caval vein thrombus filter of double umbellate forms according to claim 2, it is further characterized in that upper support
It is in 15 degree~75 degree angle hangnails that rod bending section has one with straightway junction, and hangnail struts automatically when product expands, and product is received
Hangnail is shunk automatically when contracting, is integrated with product.
5. a kind of recyclable Caval vein thrombus filter of double umbellate forms according to claim 1, it is further characterized in that lower part umbrella
Structure is made of 6 diamond shape filter screens, and 6 diamond shape filter screens, 360 degree of arranged adjacents are connected with connecting tube.
6. a kind of recyclable Caval vein thrombus filter of double umbellate forms according to claim 1, it is further characterized in that lower support
Totally 6, bar, is convexly curved, and one end is connect with diamond shape filter screen vertex, and the other end is radially interior curved in 15 °~175 ° angles
It is bent.
7. a kind of recyclable Caval vein thrombus filter of double umbellate forms according to claim 6, it is further characterized in that 6 lower part branch
Strut is connected with diamond shape filter screen vertex respectively, 360 degree of equidistant arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129484.3A CN108272530A (en) | 2017-03-06 | 2017-03-06 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129484.3A CN108272530A (en) | 2017-03-06 | 2017-03-06 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108272530A true CN108272530A (en) | 2018-07-13 |
Family
ID=62801146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710129484.3A Withdrawn CN108272530A (en) | 2017-03-06 | 2017-03-06 | A kind of recyclable Caval vein thrombus filter of double umbellate forms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108272530A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109771092A (en) * | 2019-03-26 | 2019-05-21 | 李莹 | A kind of vena cave implantation novel thrombus filter |
| CN110090091A (en) * | 2019-05-16 | 2019-08-06 | 山西大医院（山西医学科学院） | A kind of vena cava filter that dual-gripper type is recyclable |
| CN111789697A (en) * | 2020-07-10 | 2020-10-20 | 埃文斯科技（北京）有限公司 | Vena cava filter with anti-tilting supporting arm and processing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836969A (en) * | 1993-10-01 | 1998-11-17 | Boston Scientific Corporation | Vena cava filter |
| WO2005102439A2 (en) * | 2004-04-15 | 2005-11-03 | Cordis Corporation | Long-term retrievable medical filter |
| WO2007079408A2 (en) * | 2005-12-30 | 2007-07-12 | C.R. Bard Inc. | Embolus blood clot filter with floating filter basket |
| CN102307613A (en) * | 2009-02-03 | 2012-01-04 | 美国医疗设备有限公司 | Percutaneous retrievable vascular filter |
| CN105361974A (en) * | 2015-12-14 | 2016-03-02 | 广东脉搏医疗科技有限公司 | Thrombus filter |
| CN205144795U (en) * | 2015-11-10 | 2016-04-13 | 内蒙古工业大学 | Novel vena cave filters device |
| US20160120633A1 (en) * | 2014-10-30 | 2016-05-05 | Cook Medical Technologies, LLC | Hair pin ivc filter |
| CN106618794A (en) * | 2017-01-06 | 2017-05-10 | 上海宏普医疗器械有限公司 | Octopus-type retrievable vena cava filter |
-
2017
- 2017-03-06 CN CN201710129484.3A patent/CN108272530A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836969A (en) * | 1993-10-01 | 1998-11-17 | Boston Scientific Corporation | Vena cava filter |
| WO2005102439A2 (en) * | 2004-04-15 | 2005-11-03 | Cordis Corporation | Long-term retrievable medical filter |
| WO2007079408A2 (en) * | 2005-12-30 | 2007-07-12 | C.R. Bard Inc. | Embolus blood clot filter with floating filter basket |
| CN102307613A (en) * | 2009-02-03 | 2012-01-04 | 美国医疗设备有限公司 | Percutaneous retrievable vascular filter |
| US20160120633A1 (en) * | 2014-10-30 | 2016-05-05 | Cook Medical Technologies, LLC | Hair pin ivc filter |
| CN205144795U (en) * | 2015-11-10 | 2016-04-13 | 内蒙古工业大学 | Novel vena cave filters device |
| CN105361974A (en) * | 2015-12-14 | 2016-03-02 | 广东脉搏医疗科技有限公司 | Thrombus filter |
| CN106618794A (en) * | 2017-01-06 | 2017-05-10 | 上海宏普医疗器械有限公司 | Octopus-type retrievable vena cava filter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109248006B (en) * | 2018-09-25 | 2020-12-18 | 上海形状记忆合金材料有限公司 | Vena cava filter |
| CN109771089A (en) * | 2018-12-21 | 2019-05-21 | 先健科技(深圳)有限公司 | Filter |
| CN109771092A (en) * | 2019-03-26 | 2019-05-21 | 李莹 | A kind of vena cave implantation novel thrombus filter |
| CN110090091A (en) * | 2019-05-16 | 2019-08-06 | 山西大医院（山西医学科学院） | A kind of vena cava filter that dual-gripper type is recyclable |
| CN111789697A (en) * | 2020-07-10 | 2020-10-20 | 埃文斯科技（北京）有限公司 | Vena cava filter with anti-tilting supporting arm and processing method thereof |
| CN111789697B (en) * | 2020-07-10 | 2023-10-24 | 埃文斯科技（北京）有限公司 | Vena cava filter with anti-tilting support arm and processing method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180713 |