CN109044467B - Dual-crest three-trough reducing two-dimensional embolic coil - Google Patents
Dual-crest three-trough reducing two-dimensional embolic coil Download PDFInfo
- Publication number
- CN109044467B CN109044467B CN201811081755.3A CN201811081755A CN109044467B CN 109044467 B CN109044467 B CN 109044467B CN 201811081755 A CN201811081755 A CN 201811081755A CN 109044467 B CN109044467 B CN 109044467B
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- diameter
- minimum
- spring
- dimensional
- diameter section
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- 230000003073 embolic effect Effects 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 206010002329 Aneurysm Diseases 0.000 abstract description 4
- 210000004204 blood vessel Anatomy 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 208000005189 Embolism Diseases 0.000 description 4
- 201000011066 hemangioma Diseases 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010102 embolization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 206010003226 Arteriovenous fistula Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 241001484259 Lacuna Species 0.000 description 1
- 206010034240 Pelvic congestion Diseases 0.000 description 1
- 208000013868 Taylor syndrome Diseases 0.000 description 1
- 208000009443 Vascular Malformations Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 125000001145 hydrido group Chemical class *[H] 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 201000004822 varicocele Diseases 0.000 description 1
- 231100000216 vascular lesion Toxicity 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
- A61B17/12145—Coils or wires having a pre-set deployed three-dimensional shape
Abstract
A two-dimensional embolic spring ring with double peaks and three wave troughs and variable diameter is characterized in that the two-dimensional embolic spring ring is of a variable diameter spring structure formed by winding spring wires, the variable diameter springs are continuously distributed in a small-large-small mode, the maximum values of two large-diameter sections are equal, the minimum diameters of three small-diameter sections are equal, and continuous arc changes are formed from the minimum-diameter section to the maximum-diameter section and then from the minimum-diameter section to the minimum-diameter section. The invention can well enter an aneurysm and be well adhered to the wall of a blood vessel, thereby being beneficial to improving the success rate of operation and recovering patients, reducing the consumption of a spring in one operation and lightening the economic burden of the patients.
Description
Technical Field
The invention relates to a medical apparatus, in particular to a hemangioma embolism apparatus, and specifically relates to a two-dimensional embolism spring ring with double peaks, three wave troughs and variable diameters.
Background
Spring coil embolization technology has been developed over 20 years from the 90 s of the last century, and spring coil embolization therapy has been recognized as a gold standard for treating hemangiomas (e.g., aneurysms or arteriovenous fistulae, etc.). The spring coil products currently on the market are of a wide variety, such as GDC360 coil product from Boston Scientific, TRUFILL DCS coil product from Cordis, hydro series coil product from Microvention, axle 3, and the like. Although different companies have coils with different shapes, such as soft 2D structures, basket-forming 3D structures, ultra soft padded 2D structures, etc., the final use principle is consistent.
The ideal spring coil has good basket forming (positioning) performance and simultaneously has the filling volume as much as possible. For the spring ring with the same material or the same shape, the 2D structure has better drilling capacity, is more convenient for space filling, but cannot be well fixed, is easy to shift, and seriously leads to partial falling to the inner cavity of the blood vessel; the 3D spiral can well form a space, is supported in hemangioma like a flower basket, and the three-dimensional shape well covers an open area and is not easy to shift, but the drilling capacity is weaker, the small space is not densely filled, and the large-scale blank inside the space is not easy to block the flow of blood especially in high blood flow.
Many companies are further classified into different series according to the shape of the coils, such as a common 2D series, a common 3D series, etc., which are generally used together in surgery because of their different characteristics, but the defects of the companies also cause high difficulty and high risk in surgery, and because about 6-10 coils are often needed to complete one surgery, the economic burden of patients is increased. A product that combines the advantages of 2D and 3D is a new need.
Disclosure of Invention
The invention aims at solving the problem that the existing vascular embolism is difficult to achieve both positioning and filling and affects the use effect, and designs a double-crest three-trough reducing two-dimensional embolic coil which is compatible with the existing vascular embolism, simple in structure, convenient to use and good in embolic forming effect.
The technical scheme of the invention is as follows:
a two-dimensional embolic spring ring with double peaks and three wave troughs and variable diameter is characterized in that the two-dimensional embolic spring ring is of a variable diameter spring structure formed by winding spring wires, the variable diameter springs are continuously distributed in a small-large-small mode, the maximum values of two large-diameter sections are equal, the minimum diameters of three small-diameter sections are equal, and continuous arc changes are formed from the minimum-diameter section to the maximum-diameter section and then from the minimum-diameter section to the minimum-diameter section.
The spring wire is made of platinum, platinum alloy, nickel-titanium alloy, stainless steel or other metal materials with good biocompatibility
The invention has the beneficial effects that:
1) By combining the common advantages of 2D and 3D with complex shapes, the spring coil can be precisely positioned in the vessel wall and the high-speed blood flow in the vessel and can completely block the lacuna by the superposition of complex structures or shapes. 2) The standard shape can be formed by combining different wire diameters and materials, and the standard shape has certain softness and shape recovery memory (in the filling process, the position and the direction need to be adjusted, certain softness is needed, and the standard shape recovery memory is needed after filling because the standard shape is straight before the conveying process).
The present invention can treat bleeding, aneurysms, and a wide variety of vascular lesions, including malignant tumors, vascular malformations, arteriovenous fistulas, pelvic congestion syndrome, and varicoceles.
The embolic coil can well enter an aneurysm and be well adhered to the wall of a blood vessel, so that the success rate of an operation is improved, recovery of a patient is facilitated, the use amount of the coil in one operation is reduced, and the economic burden of the patient is lightened.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a second schematic structural view of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Embodiment one.
As shown in fig. 1.
The two-dimensional embolic spring ring is formed by winding spring wires to form a reducing spring structure, wherein the reducing springs are continuously distributed in a small-large-small mode, the maximum values of two large-diameter sections are equal, the minimum diameters of three small-diameter sections are equal, and continuous arc changes are formed from the minimum-diameter section to the maximum-diameter section and then from the minimum-diameter section to the minimum-diameter section. The spring wire can be made of platinum, platinum alloy, alloy nickel-titanium alloy, stainless steel or other metal materials with good biocompatibility, and the spring wire is wound on a forming die and heated and solidified into the shape shown in fig. 1.
Embodiment two.
As shown in fig. 2.
The difference between this embodiment and embodiment 1 is that it is formed by alternately connecting a plurality of peaks and a plurality of valleys, and a continuous projection is similar to a sine line structure, and can be used in combination or flexibly by cutting a section of the business according to the needs.
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (1)
1. A two-dimensional embolic spring ring with double peaks and three wave troughs and variable diameter is characterized in that the two-dimensional embolic spring ring is of a variable diameter spring structure formed by winding spring wires, the variable diameter springs are continuously distributed in a small-large-small mode, the maximum values of two large-diameter sections are equal, the minimum diameters of three small-diameter sections are equal, and continuous arc changes are formed from the minimum-diameter section to the maximum-diameter section and then from the minimum-diameter section to the minimum-diameter section; the spring wire is made of platinum, platinum alloy, nickel-titanium alloy, stainless steel or other metal materials with good biocompatibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081755.3A CN109044467B (en) | 2018-09-17 | 2018-09-17 | Dual-crest three-trough reducing two-dimensional embolic coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081755.3A CN109044467B (en) | 2018-09-17 | 2018-09-17 | Dual-crest three-trough reducing two-dimensional embolic coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109044467A CN109044467A (en) | 2018-12-21 |
| CN109044467B true CN109044467B (en) | 2024-01-05 |
Family
ID=64761923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811081755.3A Active CN109044467B (en) | 2018-09-17 | 2018-09-17 | Dual-crest three-trough reducing two-dimensional embolic coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109044467B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117157A (en) * | 1994-03-18 | 2000-09-12 | Cook Incorporated | Helical embolization coil |
| US6346117B1 (en) * | 2000-03-02 | 2002-02-12 | Prodesco, Inc. | Bag for use in the intravascular treatment of saccular aneurysms |
| CN104257412A (en) * | 2014-09-19 | 2015-01-07 | 陈旭东 | Interventional treatment instrument made from composite material and used for treating cerebral aneurysm embolism |
| JP2017213182A (en) * | 2016-05-31 | 2017-12-07 | 国立大学法人信州大学 | Embolization coil |
| JP2018050760A (en) * | 2016-09-27 | 2018-04-05 | 国立大学法人信州大学 | Embolic coil |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8043321B2 (en) * | 2003-07-24 | 2011-10-25 | Boston Scientific Scimed, Inc. | Embolic coil |
| US8425550B2 (en) * | 2004-12-01 | 2013-04-23 | Boston Scientific Scimed, Inc. | Embolic coils |
-
2018
- 2018-09-17 CN CN201811081755.3A patent/CN109044467B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117157A (en) * | 1994-03-18 | 2000-09-12 | Cook Incorporated | Helical embolization coil |
| US6346117B1 (en) * | 2000-03-02 | 2002-02-12 | Prodesco, Inc. | Bag for use in the intravascular treatment of saccular aneurysms |
| CN104257412A (en) * | 2014-09-19 | 2015-01-07 | 陈旭东 | Interventional treatment instrument made from composite material and used for treating cerebral aneurysm embolism |
| JP2017213182A (en) * | 2016-05-31 | 2017-12-07 | 国立大学法人信州大学 | Embolization coil |
| JP2018050760A (en) * | 2016-09-27 | 2018-04-05 | 国立大学法人信州大学 | Embolic coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109044467A (en) | 2018-12-21 |
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