CN110090091A - A kind of vena cava filter that dual-gripper type is recyclable - Google Patents
A kind of vena cava filter that dual-gripper type is recyclable Download PDFInfo
- Publication number
- CN110090091A CN110090091A CN201910410669.0A CN201910410669A CN110090091A CN 110090091 A CN110090091 A CN 110090091A CN 201910410669 A CN201910410669 A CN 201910410669A CN 110090091 A CN110090091 A CN 110090091A
- Authority
- CN
- China
- Prior art keywords
- outer layer
- support rod
- layer support
- rod
- dual
- 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.)
- Pending
Links
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 238000004064 recycling Methods 0.000 claims abstract description 17
- 206010058109 Hangnail Diseases 0.000 claims abstract description 11
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 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
- 230000008961 swelling Effects 0.000 claims 1
- 230000002792 vascular Effects 0.000 abstract description 8
- 230000000116 mitigating effect Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 206010020718 hyperplasia Diseases 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 208000006193 Pulmonary infarction Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 230000002390 hyperplastic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000007575 pulmonary infarction Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- 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
- A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
Abstract
The present invention provides a kind of vena cava filter that dual-gripper type is recyclable, including recycling hook, preceding outer layer support rod, rear outer layer support rod, internal layer filtering rod, the recycling hook, preceding outer layer support rod, rear outer layer support rod, internal layer filtering rod are connected by casing riveting, and the end of the preceding outer layer support rod and rear outer layer support rod is provided with fixed hangnail.The present invention effectively enhances its balance quality in use, it prevents from tilting, strengthen its stability, it is also greatly reduced the contact area with vascular tissue simultaneously, the resistance generated when recycling reduces, to the extent of the destruction of vascular tissue when decreasing recycling, while also mitigating the pain caused by patient.
Description
Technical field
It is floating in specifically a kind of recyclable filter chamber venous system the present invention relates to a kind of cardiovascular system medical instrument
Swim thrombus, the Caval vein thrombus filter that prevention pulmonary embolism, pulmonary infarction occur.
Background technique
Venous filter can be recycled in the umbrella occurred currently on the market, and product due to being unilateral support, holds in the blood vessel
Easily topple over phenomenon；Venous filter can be recycled in the lantern-shaped occurred in the market, has preferable stability in the blood vessel, still
Venous filter product can be recycled in lantern-shaped and blood vessel is line contact support, quiet with the passage of the time of implantable intravascular
Arteries and veins blood vessel meeting hyperplasia goes out tissue encapsulation and lives the line contact support that lantern-shaped can be recycled between venous filter product and blood vessel
Part, when Product recycling, can destroy hyperplastic tissue, or even tearing patient vessel, bring biggish pain to patient.
Summary of the invention
Aiming at the shortcomings of the prior art, the present invention provides a kind of vena cava filter that dual-gripper type is recyclable.
To achieve the goals above, the technical solution used in the present invention is: include recycling hook, preceding outer layer support rod,
Outer layer support rod, internal layer filtering rod afterwards, it is characterised in that: the recycling hook, preceding outer layer support rod, rear outer layer support rod,
Internal layer filtering rod is connected by casing riveting, and the end of the preceding outer layer support rod and rear outer layer support rod is provided with fixation
Hangnail.
Further, the preceding outer layer support rod be four, rear outer layer support rod be four, preceding outer layer support rod and
Outer layer support rod is angularly distributed centered on casing in 360 degree respectively afterwards；Preceding outer layer support rod and rear outer layer support rod can be with
It expanded, shunk centered on pipe sleeve, when fully expanded state: throwing of the preceding outer layer support rod of opposite two in radial vertical plane
Shadow is in an angle of 90 degrees；Outer layer support rod is in 50 degree of angles in the projection of radial vertical plane after opposite two.
Further, the internal layer filtering rod is eight, and internal layer filtering rod and rear outer layer support rod are in 360 degree of isogonisms
Degree is distributed, and the axis projection angle between adjacent two bar of internal layer filtering rod is 30 degree.
Further, recycling hook, preceding outer layer support rod, rear outer layer support rod, internal layer filtering rod and casing
It is made of Nitinol.
Further, the sleeve outer is 1mm-3mm, length 1mm-15mm.
Further, the fixation hangnail is obtuse angle setting, and fixed hangnail and corresponding support rod are in 145 degree
Angle.
Beneficial effects of the present invention: the present invention effectively enhances its balance quality in use, prevents from tilting,
Its stability is strengthened, while being also greatly reduced the contact area with vascular tissue, the resistance that when recycling generates reduces,
To the extent of the destruction of vascular tissue when reducing recycling, while also mitigating the pain caused by patient.
Detailed description of the invention
Fig. 1 is the overall structure diagram of this example.
Fig. 2 is the overall structure bottom view schematic diagram of this example.
Fig. 3 is the overall structure front view schematic diagram of this example.
Specific embodiment
As shown in Figure 1-Figure 3, the present invention provides the vena cava filter that a kind of dual-gripper type can be recycled, structure includes back
Receive hook 1, casing 2, preceding outer layer support rod 3, rear outer layer support rod 4, internal layer filtering rod 5 and fixed hangnail 6.The recycling is hung
Hook 1, preceding outer layer support rod 3, rear outer layer support rod 4 and internal layer filtering rod 5 are by nitinol alloy wire bending and molding, entirely through nickel
The connection of 2 riveting of titanium alloy casing, has stronger stability, can realize preceding outer layer support rod 3 and rear outer layer branch through this structure
Strut 4 realizes expansion, convenient for playing a supporting role to blood vessel, takes out the present invention when also facilitating recycling.The internal layer filtering
Bar 5 is eight, and internal layer filtering rod 5 and rear outer layer support rod 4 are angularly distributed in 360 degree, adjacent two bar of internal layer filtering rod 5 it
Between axis projection angle be 30 degree, the preceding outer layer support rod 3 be four, rear outer layer support rod 4 be four, preceding outer layer branch
Strut and rear outer layer support rod are angularly distributed centered on casing in 360 degree respectively；Preceding outer layer support rod 3 and the support of rear outer layer
Bar 4 can be expanded centered on pipe sleeve 2, be shunk, and when fully expanded state, the preceding outer layer support rod of opposite two 3 is in diameter
It is in an angle of 90 degrees to the projection of vertical plane；Outer layer support rod 4 is in 50 degree of angles in the projection of radial vertical plane after opposite two, can be effective
Reinforce the balance quality of the present invention during expansion, prevents from tilting, reach the therapeutic effect to patient；The preceding outer layer support rod
3 and the end of rear outer layer support rod 4 be provided with fixed hangnail 6, fixed hangnail 6 is that obtuse angle is arranged, fixed hangnail 6 with it is corresponding
Support rod is in 145 degree angles, when the present invention is placed on need to expand it is intravascular when, connect by fixation hangnail 6 with vascular tissue
Touching is supported, the effective less contact area of the present invention and vascular tissue；When being placed on blood vessel for a long time for of the invention
When interior, blood vessel meeting hyperplasia goes out tissue encapsulation and lives its contact support section, that is, consequently reduces the support that tissue is wrapped up
Part, it is smaller to the disorganization of blood vessel accordingly when needing to recycle, while also mitigating to patient's bring pain.
Beneficial effects of the present invention: the present invention effectively enhances its balance quality in use, prevents from tilting,
Its stability is strengthened, while being also greatly reduced the contact area with vascular tissue, the resistance that when recycling generates reduces,
To the extent of the destruction of vascular tissue when reducing recycling, while also mitigating the pain caused by patient.
Claims (6)
1. a kind of recyclable vena cava filter of dual-gripper type, including recycling hook, preceding outer layer support rod, rear outer layer support rod,
Internal layer filtering rod, it is characterised in that: the recycling hook, preceding outer layer support rod, rear outer layer support rod, internal layer filtering rod pass through
The end of the connection of casing riveting, the preceding outer layer support rod and rear outer layer support rod is provided with fixed hangnail.
2. a kind of recyclable vena cava filter of dual-gripper type as described in claim 1, it is characterised in that: the preceding outer layer
Support rod is four, and rear outer layer support rod is four, and preceding outer layer support rod and rear outer layer support rod are in centered on casing respectively
360 degree are angularly distributed；Preceding outer layer support rod and rear outer layer support rod can be expanded centered on pipe sleeve, be shunk, completely
When swelling state: the preceding outer layer support rod of opposite two is in an angle of 90 degrees in the projection of radial vertical plane；Outer layer branch after opposite two
Strut is in 50 degree of angles in the projection of radial vertical plane.
3. a kind of recyclable vena cava filter of dual-gripper type as described in claim 1, it is characterised in that: the internal layer mistake
Filter rod is eight, and internal layer filtering rod and rear outer layer support rod are angularly distributed in 360 degree, between adjacent two bar of internal layer filtering rod
Axis projection angle be 30 degree.
4. a kind of recyclable vena cava filter of dual-gripper type as described in claim 1, it is characterised in that: the recycling is hung
Hook, preceding outer layer support rod, rear outer layer support rod, internal layer filtering rod and casing are made of Nitinol.
5. a kind of recyclable vena cava filter of dual-gripper type as described in claim 1, it is characterised in that: outside the casing
Diameter is 1mm-3mm, length 1mm-15mm.
6. a kind of recyclable vena cava filter of dual-gripper type as described in claim 1, it is characterised in that: the fixation is fallen
Thorn is that obtuse angle is arranged, and fixed hangnail and corresponding support rod are in 145 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410669.0A CN110090091A (en) | 2019-05-16 | 2019-05-16 | A kind of vena cava filter that dual-gripper type is recyclable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410669.0A CN110090091A (en) | 2019-05-16 | 2019-05-16 | A kind of vena cava filter that dual-gripper type is recyclable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110090091A true CN110090091A (en) | 2019-08-06 |
Family
ID=67448430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910410669.0A Pending CN110090091A (en) | 2019-05-16 | 2019-05-16 | A kind of vena cava filter that dual-gripper type is recyclable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110090091A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060079930A1 (en) * | 2004-09-27 | 2006-04-13 | Mcguckin James F Jr | Vein filter |
| RU98907U1 (en) * | 2010-06-07 | 2010-11-10 | Николай Михайлович Ведерников | DEVICE FOR PREVENTION OF THROMBOEMBOLISM OF PULMONARY ARTERY |
| WO2011055079A1 (en) * | 2009-11-06 | 2011-05-12 | A.L.N. | Filter for a vena cava and kits containing same |
| CN105943197A (en) * | 2016-04-29 | 2016-09-21 | 湖南埃普特医疗器械有限公司 | 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 |
| CN207821947U (en) * | 2017-04-11 | 2018-09-07 | 杭州唯强医疗科技有限公司 | With from central vena cava filter |
| CN207949945U (en) * | 2017-05-18 | 2018-10-12 | 先健科技(深圳)有限公司 | Filter |
| CN210250164U (en) * | 2019-05-16 | 2020-04-07 | 山西大医院（山西医学科学院） | Recoverable vena cava filter of double bracing type |
-
2019
- 2019-05-16 CN CN201910410669.0A patent/CN110090091A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060079930A1 (en) * | 2004-09-27 | 2006-04-13 | Mcguckin James F Jr | Vein filter |
| WO2011055079A1 (en) * | 2009-11-06 | 2011-05-12 | A.L.N. | Filter for a vena cava and kits containing same |
| RU98907U1 (en) * | 2010-06-07 | 2010-11-10 | Николай Михайлович Ведерников | DEVICE FOR PREVENTION OF THROMBOEMBOLISM OF PULMONARY ARTERY |
| CN105943197A (en) * | 2016-04-29 | 2016-09-21 | 湖南埃普特医疗器械有限公司 | 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 |
| CN207821947U (en) * | 2017-04-11 | 2018-09-07 | 杭州唯强医疗科技有限公司 | With from central vena cava filter |
| CN207949945U (en) * | 2017-05-18 | 2018-10-12 | 先健科技(深圳)有限公司 | Filter |
| CN210250164U (en) * | 2019-05-16 | 2020-04-07 | 山西大医院（山西医学科学院） | Recoverable vena cava filter of double bracing type |
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