CN104758023B - A kind of blood flow turning rack - Google Patents
A kind of blood flow turning rack Download PDFInfo
- Publication number
- CN104758023B CN104758023B CN201510190933.6A CN201510190933A CN104758023B CN 104758023 B CN104758023 B CN 104758023B CN 201510190933 A CN201510190933 A CN 201510190933A CN 104758023 B CN104758023 B CN 104758023B
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- CN
- China
- Prior art keywords
- blood flow
- support frame
- transfer
- turning rack
- aneurysm
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/823—Stents, different from stent-grafts, adapted to cover an aneurysm
Abstract
The present invention provides a kind of blood flow turning rack, including：The cylindrical support frame of netted hollow out and the transfer being arranged on support frame as described above inwall；The transfer in support frame as described above by being radially uniformly distributed, being constituted along multiple direction turning pieces that the axial direction of support frame as described above is arranged in order.The present invention utilizes direction turning piece, changes blood flow direction, weakens the blood flow in aneurysm, mitigates the damage that blood flow impact is caused to knurl wall, so as to prevent that aneurysm from continuing to increase or rupturing, it might even be possible to aneurysm is degenerated or is disappeared completely.Meanwhile, support of the invention is engraved structure, and is provided with direction turning piece, thus it is possible to vary blood flow direction, it is to avoid overlay film, blood flow can flow into collateral blood vessels, it is to avoid the blocking of collateral blood vessels.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of blood flow turning rack.
Background technology
Aneurysm is due to lesion or the damage of arterial wall, forms the table of arterial wall limitation or diffusivity expansion or bulging
It is existing, using dilatancy, pulsation lump as main performance.Aneurysm is a kind of disease with potential life danger, and it is in blood flow
Impact under constantly grow, compressing peripheral airways or tissue and cause symptom, such as：Due to blood pressure increase or other factors caused by
Aneurysm rupture, will occur bleeding drastically.Aneurysm can occur at any position of arterial system, and with limbs trunk
Aneurysm, intracranial aneurysm and carotid aneurysm are relatively conventional.It is wherein the most complicated with the treatment of intracranial aneurysm.
Intracranial aneurysm is due to that the local birth defects of cerebral artery tube wall and cerebral artery cavity pressure increase caused.
When it ruptures, the meningismuses such as severe headache, agitation, nausea and vomiting are shown as, increased intracranial pressure occurs therewith, the state of an illness is tight
, can threat to life during weight.
In the intravascular of intracranial aneurysm treatment method be mainly Parent artery occlusion, the balloon embolization in aneurysm cavity,
Liquid embolic, Coil embolization and intravascular tissue engineering technology.Using it is most be Matrix detachable coil (GDC) embolism skill
Art, clogs aneurysm cavity by clogging turn in aneurysm cavity, or with the help of balloon/stent, makes shape in knurl chamber
Into thrombus, finally isolate with normal blood.After being treated using above-mentioned means, Giant intracranial aneurysms can produce occupation time process, or
Situations such as fine and close not clogging in knurl chamber occurs in person, it is all difficult to obtain preferable therapeutic effect to cause these technologies.
Then, overlay film frame is increasingly becoming the aneurysmal new paragon for the treatment of, existing overlay film frame include supporting construction and
Overlay film, overlay film is coated on the outside of supporting construction, is acted on by the physical isolation of overlay film, by the blood flow of aneurysm diseased region with
It is normal to learn circulation isolation, channel of blood flow is re-established in parent artery.But this kind of overlay film frame can cause brace sections collateral
The blocking of blood vessel, or the ISR after stenter to implant.
The content of the invention
Present invention solves the technical problem that being to provide a kind of blood flow turning rack, it can change blood flow direction, it is to avoid
Blood flow impact aneurysm inner chamber, prevents that aneurysm from continuing to increase or rupturing, it might even be possible to aneurysm is degenerated or is disappeared completely, reach
To the purpose for curing intracranial aneurysm；Meanwhile, it can also avoid the blocking of collatoral vessel.
The invention discloses a kind of blood flow turning rack, including：
The cylindrical support frame of netted hollow out and the transfer being arranged on support frame as described above inwall；
The transfer in support frame as described above by being radially uniformly distributed, being arranged in order along the axial direction of support frame as described above
Multiple direction turning pieces are constituted.
It is preferred that, also include：It is arranged at the indicating at the transfer two ends.
It is preferred that, the also indicating including being arranged at support frame as described above two ends.
It is preferred that, the length of the transfer is 5~16mm.
It is preferred that, the direction turning piece surface is with support frame inner wall surface in 1~30 ° of angle.
It is preferred that, the direction turning piece and support frame as described above contact connection by tie point, the direction turning piece with its with it is described
0~45 ° of angle is rotated centered on the tie point of support frame.
It is preferred that, the support frame equal length at the transfer two ends.
It is preferred that, a diameter of 2~10mm of support frame as described above.
It is preferred that, the direction turning piece is the thin slice of the smooth of the edge.
It is preferred that, the quantity of the direction turning piece vertically is that the direction turning piece quantity on 6~20 rows, same circumference is 6~50
It is individual.
Compared with prior art, blood flow turning rack of the invention, including：The cylindrical support frame of netted hollow out and setting
Transfer on support frame as described above inwall；The transfer in support frame as described above by being radially uniformly distributed, along described
Multiple direction turning pieces that the axial direction of support frame is arranged in order are constituted.The present invention utilizes direction turning piece, changes blood flow direction, makes in aneurysm
Blood flow weaken, mitigate the damage that is caused to knurl wall of blood flow impact, so as to prevent that aneurysm from continuing to increase or rupturing, even
Aneurysm can be made to degenerate or disappear completely.Meanwhile, support of the invention is engraved structure, and is provided with direction turning piece,
Blood flow direction can be changed, it is to avoid overlay film, blood flow can flow into collateral blood vessels, it is to avoid the blockings of collateral blood vessels.
Brief description of the drawings
Fig. 1 is the internal cross section structural representation of blood flow turning rack of the present invention；
Side structure schematic diagram when Fig. 2 is in different windup-degrees for the direction turning piece of the present invention；
Fig. 3 is released to endovascular schematic diagram for blood flow turning rack of the present invention.
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
The embodiment of the invention discloses a kind of blood flow turning rack, including：
The cylindrical support frame of netted hollow out and the transfer being arranged on support frame as described above inwall；
The transfer is arranged in order by the axial direction for being radially uniformly distributed, prolonging support frame as described above in support frame as described above
Multiple direction turning pieces are constituted.
The blood flow turning rack of the present invention includes support frame and transfer.Support frame as described above is the cylinder of netted hollow out
Shape, preferably its both ends open, self-inflated metallic support.Support frame as described above is preferred to use memory metal and is made, more preferably nickel
Titanium alloy；The external diameter of support frame as described above is preferably 1~5mm, and wall thickness is preferably 0.1~0.25mm, and length is preferably 10~20mm.
In order to which the support can accurately act on aneurysmal position, it is preferred that also including being arranged at showing for support frame as described above two ends
Mark.The indicating is preferably a diameter of 0.01~0.06mm platinum wire, platinum alloy silk, gold silk or gold alloy silk.It is described
Indicating can show the position of support under X-ray, be easy to be accurately positioned.
In the present invention, the transfer is by being radially uniformly distributed, prolonging the axle of support frame as described above in support frame as described above
Constituted to the multiple direction turning pieces being arranged in order.The transfer is arranged on support frame as described above inwall, and it can be arranged at branch
Any part of support inwall, can be close to the end of support frame, can also be at the middle part of support frame；It is preferred that the steering dress
The support frame equal length at two ends is put, i.e., described transfer is arranged at the middle part of support frame as described above inwall.It is described to turn to
The length of device is preferably 5~16mm.In the blood vessels, the transfer needs precisely to be positioned at aneurysmal opening, because
This, the preferred indicating for also including being arranged at the transfer two ends of blood flow turning rack of the invention.The indicating is preferred
For a diameter of 0.01~0.06mm platinum wire, platinum alloy silk, gold silk or gold alloy silk.The indicating can be with X-ray
The position of transfer is shown, is easy to be accurately positioned.
The direction turning piece is preferably the thin slice of the smooth of the edge, and the shape for the direction turning piece is not particularly limited, can be with
For circular, ellipse or scale shape etc., the direction turning piece preferred a width of 0.1~3mm, a length of 1~5mm, thickness is 0.1~
0.25mm.The direction turning piece contacts connection with support frame by tie point, it is preferred that the direction turning piece surface and support frame inwall
Surface is in 1~30 ° of angle.It is further preferred that the direction turning piece centered on its tie point with support frame as described above rotation 0~
45 ° of angles.The quantity of the direction turning piece vertically is preferably that the direction turning piece quantity on 6~20 rows, same circumference is preferably 6~50
It is individual.The present invention changes blood flow direction by the effect of direction turning piece, weakens blood flow in knurl, mitigates blood flow impact to knurl wall
The damage caused, makes to quickly form thrombus in knurl.
Because the blood flow turning rack of the present invention integrally belongs to engraved structure, therefore when with collateral blood vessels, blood flow is still
It so can smoothly flow slowly into collateral blood vessels, it is to avoid the situation that collateral blood vessels are blocked.
Fig. 1 is the internal cross section structural representation of blood flow turning rack of the present invention.In Fig. 1, (1) is support frame indicating, (2)
For transfer indicating, (3) are transfer, and (4) are support frame.
Side structure schematic diagram when Fig. 2 is in different windup-degrees for the direction turning piece of the present invention.In Fig. 2, direction turning piece (3) is dashed forward
Go out and support frame surface and rotate angled.2a is that side when direction turning piece surface is in 1~30 ° of angle with support frame inner wall surface is tied
Structure schematic diagram；2b is in 1~30 ° of angle with support frame inner wall surface for direction turning piece surface, and the direction turning piece is with itself and the branch
Side structure schematic diagram when rotation is more than 0 ° less than or equal to 45 ° of angles centered on the tie point of support.
Fig. 3 is released to endovascular schematic diagram for blood flow turning rack of the present invention.In Fig. 3, blood flow turning rack (8) is released
It is put in blood vessel (5), transfer (3) is across aneurysm neck, when blood (7) flows through aneurysm (6), transfer (3)
Direction turning piece, which has, to be stopped and rents, and the flow direction of blood flow script is changed, it is impossible to be directly filled with aneurysm cavity, prevent aneurysm after
Continuous increase ruptures.The blood flow turning rack for being additionally, since the present invention uses engraved structure, has side shoot for stented area
(9) situation, blood flow still can smoothly flow slowly into collateral blood vessels, it is to avoid side shoot (9) is blocked.
The preparation method of blood flow turning rack of the present invention is：
Using laser cutting memory alloy pipes or braiding memory alloy wire, the cylindrical support frame of netted hollow out is obtained；
The direction turning piece that memory alloy material is made is assembled on support frame as described above, obtains blood flow turning rack.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that pair
, under the premise without departing from the principles of the invention, can also be to present invention progress for those skilled in the art
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of blood flow turning rack, including：
The cylindrical support frame of netted hollow out and the transfer being arranged on support frame as described above inwall；
The transfer by being radially uniformly distributed in support frame as described above, along the axial direction of support frame as described above be arranged in order it is multiple
Direction turning piece is constituted；
The direction turning piece surface is with support frame inner wall surface in 1~30 ° of angle.
2. blood flow turning rack according to claim 1, it is characterised in that also include：It is arranged at the transfer two
The indicating at end.
3. blood flow turning rack according to claim 2, it is characterised in that also including being arranged at support frame as described above two ends
Indicating.
4. the blood flow turning rack according to claims 1 to 3 any one, it is characterised in that the length of the transfer
Spend for 5~16mm.
5. blood flow turning rack according to claim 1, it is characterised in that the direction turning piece passes through even with support frame as described above
Contacts are connected, and the direction turning piece rotates 0~45 ° of angle centered on its tie point with support frame as described above.
6. the blood flow turning rack according to claims 1 to 3 any one, it is characterised in that the transfer two ends
Support frame equal length.
7. the blood flow turning rack according to claims 1 to 3 any one, it is characterised in that the diameter of support frame as described above
For 2~10mm.
8. the blood flow turning rack according to claims 1 to 3 any one, it is characterised in that the direction turning piece is edge
Smooth thin slice.
9. the blood flow turning rack according to claims 1 to 3 any one, it is characterised in that the direction turning piece is vertically
Quantity be 6~20 rows, the direction turning piece quantity on same circumference is 6~50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190933.6A CN104758023B (en) | 2015-04-21 | 2015-04-21 | A kind of blood flow turning rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190933.6A CN104758023B (en) | 2015-04-21 | 2015-04-21 | A kind of blood flow turning rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104758023A CN104758023A (en) | 2015-07-08 |
| CN104758023B true CN104758023B (en) | 2017-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190933.6A Active CN104758023B (en) | 2015-04-21 | 2015-04-21 | A kind of blood flow turning rack |
Country Status (1)
| Country | Link |
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| CN (1) | CN104758023B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006073745A2 (en) * | 2005-01-07 | 2006-07-13 | Hines Richard A | Micro-pleated stent assembly |
| CN101415380A (en) * | 2006-04-07 | 2009-04-22 | 半影公司 | Aneurysm occlusion system and method |
| CN101426454A (en) * | 2004-05-25 | 2009-05-06 | 切斯纳特医学技术公司 | Flexible vascular occluding device |
| CN102448380A (en) * | 2009-04-22 | 2012-05-09 | 湖区制造公司,商用名湖区医药 | Aneurysm treatment system, device and method |
| CN204542270U (en) * | 2015-04-21 | 2015-08-12 | 仇汉诚 | A kind of blood flow turning rack |
-
2015
- 2015-04-21 CN CN201510190933.6A patent/CN104758023B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426454A (en) * | 2004-05-25 | 2009-05-06 | 切斯纳特医学技术公司 | Flexible vascular occluding device |
| WO2006073745A2 (en) * | 2005-01-07 | 2006-07-13 | Hines Richard A | Micro-pleated stent assembly |
| CN101415380A (en) * | 2006-04-07 | 2009-04-22 | 半影公司 | Aneurysm occlusion system and method |
| CN102448380A (en) * | 2009-04-22 | 2012-05-09 | 湖区制造公司,商用名湖区医药 | Aneurysm treatment system, device and method |
| CN204542270U (en) * | 2015-04-21 | 2015-08-12 | 仇汉诚 | A kind of blood flow turning rack |
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| Publication number | Publication date |
|---|---|
| CN104758023A (en) | 2015-07-08 |
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Effective date of registration: 20230201 Address after: 1049, Floor 1, Guoyuan Xili (shopping mall), Miyun Town, Miyun District, Beijing, 101500 Patentee after: Beijing kelaiwen Technology Consulting Co.,Ltd. Address before: Vascular Neurosurgery, Second Artillery General Hospital, No. 16, Xinjiekouwai Street, Xicheng District, Beijing, 100088 Patentee before: Qiu Hancheng |