CN105520791A - Novel retrievable vena cava thrombus filter - Google Patents
Novel retrievable vena cava thrombus filter Download PDFInfo
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- CN105520791A CN105520791A CN201510565038.8A CN201510565038A CN105520791A CN 105520791 A CN105520791 A CN 105520791A CN 201510565038 A CN201510565038 A CN 201510565038A CN 105520791 A CN105520791 A CN 105520791A
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- Prior art keywords
- filter
- product
- tail end
- balance columns
- filter screen
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 25
- 210000003462 vein Anatomy 0.000 claims abstract description 11
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 10
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 5
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000017531 blood circulation Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000008280 blood Substances 0.000 abstract description 2
- 210000004369 blood Anatomy 0.000 abstract description 2
- 238000003698 laser cutting Methods 0.000 abstract description 2
- 229910021645 metal ion Inorganic materials 0.000 abstract description 2
- 208000010378 Pulmonary Embolism Diseases 0.000 abstract 1
- 230000009545 invasion Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 208000006193 Pulmonary infarction Diseases 0.000 description 9
- 230000007575 pulmonary infarction Effects 0.000 description 9
- 206010047249 Venous thrombosis Diseases 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 206010051055 Deep vein thrombosis Diseases 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 206010061225 Limb injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000011888 autopsy Methods 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- Prostheses (AREA)
Abstract
The invention discloses a novel retrievable vena cava thrombus filter. The product is composed of a retrieving hook, a connecting internal nut, front-end filter screens, blood vessel fixed thorns, balancing pillars, sine wave filter screens, a tail end and a tail end connecting nut. The filter structure is formed through integrated laser cutting processing and welding. The finished product disclosed by the invention, by virtue of the sine wave filter screens in positive S forms, can expand the filter part of the filter and improve the thrombus filter efficiency; the product, when used for filtering thrombus, can avoid occlusion in the passing ability of blood flow, so that the risks of pulmonary embolism reoccurrence and vein occlusion in a patient subjected to the treatment by virtue of the thrombus filter apparatus. The product, which is processed from same nickel-titanium alloy, can improve the corrosion potential thereof, relieve the corrosion thereof in blood, relieve the invasion of metal ions into a human body and promote the safe use thereof.
Description
Technical field
Patent of the present invention relates to a kind of cardiovascular system medical apparatus and instruments, and specifically swim in a kind of recyclable filter chamber Venous system thrombosis, the Caval vein thrombus filter that prevention pulmonary infarction, pulmonary infarction occur.
Background technology
It is reported the U.S. every year because the inpatient of venous thrombosis and pulmonary infarction has 300,000 ~ 500,000 example, and wherein 50,000 routine patient is because of pulmonary infarction death.By to pulmonary infarction patient Statistical analysis of autopsy, the embolus of 95% comes from coming off of deep veins of lower limb and pelvic veins thrombosis.Different manufacturers also develops different thrombus filtering units in the market, for limb injury and fracture, particularly blood vessel internal membrane damage; Wound; Malignant tumor; Neurosurgery; Gestation merges deep venous thrombosis; The phlebothrombosis that patient bedridden in long term is formed.
Along with the appearance of thrombus filtering unit on market, increasing patient selects to implant thrombus filtering unit to prevent pulmonary infarction, pulmonary infarction.But the good product that market occurs is non-single metal material product, and corrosion potential is lower, and after product introduction human body, be easily corroded under blood of human body environment, the metal ion in product will enter human body, harm patient health.On the market after product implant into body except perishable, thrombosis filter efficiency is also not enough, often has patient to occur the report of pulmonary infarction.
Summary of the invention
To be corroded efficiency and improve product thrombosis filter efficiency to reduce product, technical solution of the present invention is as follows: the thrombus filter providing a kind of identical material band sine wave drainage screen is connected with the induction system of tape label.This filter can accurately be released into patient body target site by induction system under actinoscopy X.Treat that filter discharges in vivo, obtain after therapeutic effect and reclaim through recover again, also can long-term implant into body as required.The sinusoidal wave filter screen structure of product can increase thrombosis contact area, realizes better arresting the thrombosis that swims, and not easily causes vein blood vessel to block after intercepting and capturing thrombosis in vivo.
Filter by reclaiming hook, connect inner nut, front end filter screen, the fixing thorn of blood vessel, balance columns, sinusoidal wave filter screen, tail end, tail end attaching nut form.
Filter is formed through Laser cutting, heat treatment by Nitinol pipe, has ultra-strong elasticity memory function structure.
Filter recovery hook, connection inner nut, front end filter screen, the fixing thorn of blood vessel, balance columns, sinusoidal wave drainage screen are integrally formed by cut.
Connect inner nut to be processed by nickel-titanium alloy material, and to weld with filter through laser and be connected as a single entity.
The fixing thorn of blood vessel is connected turning at front end filter screen with balance columns, outwards rises into about 30 ° of cornicults, to be integrally connected to form with balance columns through cut, during product contraction and balance columns be integrated, automatically strut during product expansion.
Filter, by point arrangements such as 6 balance columns, forms filter balanced structure, and balance filter does not tilt.
Sinusoidal wave filter screen junction is connected with product tail end in just " S " type.
Effective benefit of the present invention adopts sinusoidal configuration drainage screen, frit position can be expanded, improve thrombosis filter efficiency, while filtration thrombosis, also plug flow does not pass through, and greatly reduces the risk of patient's risk that pulmonary infarction is sent out again after thrombus filtering unit treatment and vein obstruction.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one.
Fig. 2 is the structural representation of embodiment two.
Fig. 3 is that example one is along blood flow direction schematic diagram (arrow is blood flow direction).
Fig. 4 is that example one is along blood flow direction projection.
Fig. 5 is A portion structure enlarged diagram in Fig. 1.
Detailed description of the invention
According to explanation accompanying drawing, the invention will be further described below:
As described in example one this recoverable version filter by reclaiming hook 1, connect inner nut 2, front end filter screen 3, blood vessel fix thorn 4, balance columns 5, sinusoidal wave filter screen 6, tail end 7, tail end attaching nut 8 form.
Feature of the present invention be product head end be Product recycling hook, reclaim hook after connect front end filter screen, product balance columns of practicing midwifery after the filter screen of front end, balance columns be connected with front end filter screen turning be product blood vessel fix sting.Connect sinusoidal wave drainage screen after reconciliation of inventory post, the sinusoidal wave drainage screen other end is connected with tail end, sinusoidal wave product tail end junction point and filter screen other end balance columns contact not at same straight line, in 60 ° or 120 ° of rotations.Tail end is hollow type tube chamber, built-in tail end attaching nut.
Filter that the present invention tells reclaims hook and is formed through laser one cutting processing by Nitinol pipe.Filter blood vessel fixedly stings in forming for the cutting of laser one, and one cuts apart, and one is integrally connected with filter body.
Structure shown in example two is circular arc filter screen, and other structures are same as Example 1.
The above, be only representative instance of the present invention, is not used in that to limit this example novel, all improve on basis of the present invention and the example of expansion all within protection scope of the present invention.
Claims (4)
1. a novel recyclable Caval vein thrombus filter by reclaiming hook, connect inner nut, the fixing thorn of front end filter screen, blood vessel, balance columns, sinusoidal wave filter screen, tail end, tail end attaching nut form, sinusoidal wave product tail end junction point and filter screen other end balance columns contact be not at same straight line, in 0 ~ 180 ° of rotation, rotate preferential with 60 ° ~ 120 °.
2. a kind of novel recyclable Caval vein thrombus filter according to claim 1, is characterized in that connecting inner nut material is that Nitinol processes.
3. a kind of novel recyclable Caval vein thrombus filter according to claim 1, be further characterized in that the fixing thorn of blood vessel is connected turning at front end filter screen with balance columns, outwards rise into about 30 ° of cornicults, to be integrally connected through cut with balance columns and to form, be integrated with balance columns when product shrinks, automatically strut during product expansion.
4. a kind of novel recyclable Caval vein thrombus filter according to claim 1, has a sinusoidal wave filter screen after being further characterized in that balance columns, sinusoidal wave junction is connected with product tail end in just " S " type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565038.8A CN105520791A (en) | 2015-09-08 | 2015-09-08 | Novel retrievable vena cava thrombus filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565038.8A CN105520791A (en) | 2015-09-08 | 2015-09-08 | Novel retrievable vena cava thrombus filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105520791A true CN105520791A (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565038.8A Pending CN105520791A (en) | 2015-09-08 | 2015-09-08 | Novel retrievable vena cava thrombus filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105520791A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937892A (en) * | 2017-05-12 | 2017-07-11 | 谷涌泉 | One kind length puts die cavity venous 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 |
| CN110063814A (en) * | 2019-05-16 | 2019-07-30 | 山西职业技术学院 | A kind of calabash shape vena cava filter |
| CN113940782A (en) * | 2020-07-15 | 2022-01-18 | 先健科技(深圳)有限公司 | medical instruments |
| CN115581501A (en) * | 2022-11-01 | 2023-01-10 | 上海腾复医疗科技有限公司 | embolic filter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1430839A1 (en) * | 2001-09-28 | 2004-06-23 | Kanji Inoue | Free thrombus capturing tool |
| CN1739466A (en) * | 2004-08-28 | 2006-03-01 | 深圳市先健科技股份有限公司 | Thrombus filter of controllable release and preparation method thereof |
| CN101143114A (en) * | 2006-09-14 | 2008-03-19 | 微创医疗器械(上海)有限公司 | Double-layer venous filter |
| CN201123855Y (en) * | 2007-09-06 | 2008-10-01 | 首都医科大学宣武医院 | Novel vena cava filter with controllable opening time in vivo |
| CN101732106A (en) * | 2008-11-10 | 2010-06-16 | 北京航空航天大学 | Swirling vena cava filter |
| CN102307613A (en) * | 2009-02-03 | 2012-01-04 | 美国医疗设备有限公司 | Percutaneous retrievable vascular filter |
| CN205041483U (en) * | 2015-09-08 | 2016-02-24 | 上海宏普医疗器械有限公司 | Novel recoverable vena cave thrombus filter |
-
2015
- 2015-09-08 CN CN201510565038.8A patent/CN105520791A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1430839A1 (en) * | 2001-09-28 | 2004-06-23 | Kanji Inoue | Free thrombus capturing tool |
| CN1739466A (en) * | 2004-08-28 | 2006-03-01 | 深圳市先健科技股份有限公司 | Thrombus filter of controllable release and preparation method thereof |
| CN101143114A (en) * | 2006-09-14 | 2008-03-19 | 微创医疗器械(上海)有限公司 | Double-layer venous filter |
| CN201123855Y (en) * | 2007-09-06 | 2008-10-01 | 首都医科大学宣武医院 | Novel vena cava filter with controllable opening time in vivo |
| CN101732106A (en) * | 2008-11-10 | 2010-06-16 | 北京航空航天大学 | Swirling vena cava filter |
| CN102307613A (en) * | 2009-02-03 | 2012-01-04 | 美国医疗设备有限公司 | Percutaneous retrievable vascular filter |
| CN205041483U (en) * | 2015-09-08 | 2016-02-24 | 上海宏普医疗器械有限公司 | Novel recoverable vena cave thrombus filter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937892A (en) * | 2017-05-12 | 2017-07-11 | 谷涌泉 | One kind length puts die cavity venous filter |
| CN106937892B (en) * | 2017-05-12 | 2019-02-19 | 谷涌泉 | A kind of length sets type 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 |
| CN110063814A (en) * | 2019-05-16 | 2019-07-30 | 山西职业技术学院 | A kind of calabash shape vena cava filter |
| CN113940782A (en) * | 2020-07-15 | 2022-01-18 | 先健科技(深圳)有限公司 | medical instruments |
| CN115581501A (en) * | 2022-11-01 | 2023-01-10 | 上海腾复医疗科技有限公司 | embolic filter |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201321 Shanghai Kang Xin Road, Lane 25, building 3399, room 5, floor 555 Applicant after: SHANGHAI HONGPU MEDICAL EQUIPMENT CO., LTD. Address before: 201201 Shanghai city Pudong New Area Qing Road 705 room No. 601 Applicant before: SHANGHAI HONGPU MEDICAL EQUIPMENT CO., LTD. |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160427 |
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| WD01 | Invention patent application deemed withdrawn after publication |