CN201414816Y - Micro-guide wire inner core and micro-guide wire - Google Patents
Micro-guide wire inner core and micro-guide wire Download PDFInfo
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- CN201414816Y CN201414816Y CN2009201315342U CN200920131534U CN201414816Y CN 201414816 Y CN201414816 Y CN 201414816Y CN 2009201315342 U CN2009201315342 U CN 2009201315342U CN 200920131534 U CN200920131534 U CN 200920131534U CN 201414816 Y CN201414816 Y CN 201414816Y
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- wire inner
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Abstract
The utility model provides a micro-guide wire inner core applied to the technical field of medical devices, wherein, the micro-guide wire inner core comprises a supporting part, a transition part anda guide part; the transition part and the guide part adopt a tapering structure with conicity; the maximum diameter of the transition part is less than or equal to the diameter of the supporting part;and the minimum diameter of the transition part is greater than or equal to the maximum diameter of the guide part. The micro-guide wire inner core comprises two tapering parts with conicity at the same time and improves the elasticity and the flexibility of a micro-guide wire made of the micro-guide wire inner core, so that the front end of the micro-guide wire is not easy to bend and deform during the surgical process, and the surgical operation can be simplified.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates in particular to a kind of micro-wire inner core and micro-wire.
Background technology
At present, the micro-wire that particularly needs to use the thinner precision of diameter in the microvascular surgical clinical operation process of some capillarys in cardiovascular and cerebrovascular vessel enters narrow tortuous endovascular lesion locations, so that the operator takes more effective treatment operation scheme to become possibility.
The micro-wire that prior art provides is formed by inner core and with spring two parts of its welding.Stretching spring section is wound in by the precision spring machine by meticulous 0Cr19Ni9 (0Cr18Ni9) stainless steel silk after disposable grinding forms by 0Cr19Ni9 (0Cr18Ni9) stainless steel silk for inner core part, and by being welded on the inner core after the cleaning treatment.Yet adopt the elasticity deficiency of the micro-wire that above-mentioned micro-wire inner core makes, cause the distortion that gives a discount easily of its front end elbow part, the operation during the influence treatment.
The utility model content
The purpose of this utility model is to provide a kind of micro-wire inner core, is intended to solve the elasticity deficiency of the micro-wire that the micro-wire inner core that adopts prior art to provide makes, and causes the distortion that gives a discount easily of its front end elbow part, the problem of the operation when influence is treated.
This utility model embodiment realizes like this, a kind of micro-wire inner core, described micro-wire inner core is made of support portion, transition part and guide part successively, described transition part and guide part are gradually thin and have the structure of tapering, the maximum gauge of described transition part is less than or equal to the diameter of described support portion, and the minimum diameter of described transition part is more than or equal to the maximum gauge of described guide part.
In above-mentioned micro-wire inner core, the surface-coated of described support portion has hydrophilic coating.
In above-mentioned micro-wire inner core, described hydrophilic coating is a teflon layer.
In above-mentioned micro-wire inner core, the diameter of described support portion is 0.25mm, 0.30mm or 0.35mm.
In above-mentioned micro-wire inner core, the length of described transition part is 10cm～15cm.
In above-mentioned micro-wire inner core, the length of described guide part is being 8cm～10cm.
In above-mentioned micro-wire inner core, the diameter at thin position of described guide part is 0.08mm～0.10mm.
In above-mentioned micro-wire inner core, described micro-wire inner core is made by 0Cr19Ni9 stainless steel silk or 0Cr18Ni9 stainless steel silk.
Another purpose of this utility model embodiment is to provide a kind of micro-wire, comprises micro-wire inner core and the spring that is set in the front end of described micro-wire inner core, and described micro-wire inner core adopts aforesaid micro-wire inner core.
In above-mentioned micro-wire, described spring is that 0Cr19Ni9 stainless steel silk or the 0Cr18Ni9 stainless steel silk of 0.05mm～0.06mm is entwined by diameter, and the diameter of described spring is consistent with the diameter of described support portion.
In above-mentioned micro-wire, the welding of the front end of the front end of described spring and described micro-wire inner core forms a pad, and described pad is hemispherical.
The micro-wire inner core that this utility model embodiment provides is made of support portion, transition part and guide part successively, transition part and guide part are gradually thin and have the structure of tapering, and the maximum gauge of transition part is less than or equal to the diameter of support portion, the minimum diameter of transition part is more than or equal to the maximum gauge of guide part, since have simultaneously two progressive and form by the part of tapering, the elasticity and the flexibility that adopt the micro-wire that this micro-wire inner core makes have been improved, make its front end in operation process, be difficult for the distortion that gives a discount, thereby simplified operation technique.
Description of drawings
Fig. 1 is the structure chart of the micro-wire inner core that provides of this utility model embodiment;
Fig. 2 is the structure chart of the micro-wire that provides of this utility model embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, this utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation this utility model, and be not used in qualification this utility model.
The micro-wire inner core that this utility model embodiment provides is made of support portion, transition part and guide part successively, transition part and guide part are gradually thin and have the structure of tapering, and the maximum gauge of transition part is less than or equal to the diameter of support portion, and the minimum diameter of transition part is more than or equal to the maximum gauge of guide part.
The micro-wire that this utility model embodiment provides specifically comprises micro-wire inner core and the spring of fixedlying connected with it, wherein, the hard end of inner core is the hemispherical that is welded into, the fixedly connected spring of soft end of inner core, when operation, this soft end is as importing endovascular front end.Particularly, in order to strengthen the decay resistance of micro-wire, and medically have biocompatibility, inner core and spring all adopt 0Cr19Ni9 stainless steel silk or 0Cr18Ni9 stainless steel silk (being the 304# stainless steel silk) to make, certainly, also can select for use other material to make according to actual needs.
Fig. 1 shows the structure of the micro-wire inner core that this utility model embodiment provides, and for convenience of explanation, only shows the part relevant with this utility model embodiment.
The micro-wire inner core is made of support portion 1, transition part 2 and guide part 3 successively, transition part 2 and guide part 3 are gradually thin and have the structure of tapering, the maximum gauge of transition part 2 is less than or equal to the diameter of support portion 1, and the minimum diameter of transition part 2 is more than or equal to the maximum gauge of guide part 3.Particularly, in the embodiment of the invention, the micro-wire inner core by behind skiving, is formed support portion 1 and extension,,, form transition part 2 and guide part 3 the further skiving of extension in order to make micro-wire have better flexibility and elasticity.
Wherein, the surface-coated of support portion 1 has hydrophilic coating, can be so that the reduction of the coefficient of friction on the surface of support portion 1 be Paint Gloss, and the complication of generation thereby minimizing is performed the operation.Particularly, among this utility model embodiment, the surface of support portion 1 evenly is coated with Teflon.In addition, among this utility model embodiment, the diameter of support portion 1 can be any among 0.25mm, 0.30mm or the 0.35mm.
The extension gradually thin part that to be inner core form through skiving through accurate centerless grinder, has certain tapering, its length of carrying out the formed transition part 2 of secondary skiving can be selected according to actual needs, and among this utility model embodiment, the length of transition part 2 is 10cm～15cm.
Fig. 2 shows the structure of the micro-wire that this utility model embodiment provides, and for convenience of explanation, only shows the part relevant with this utility model embodiment.
Micro-wire shown in Figure 2 forms for the front end that spring 4 is set in micro-wire inner core shown in Figure 1, and the front end welding of the front end of spring and micro-wire inner core forms a pad 5.Particularly, in this utility model embodiment, spring 4 is for being that 0Cr19Ni9 stainless steel silk or the 0Cr18Ni9 stainless steel silk (being the 304# stainless steel silk) of 0.05mm～0.06mm is entwined by diameter, and the diameter of its diameter and support portion 1 is consistent.In order to guarantee the weld free from flaw of pad 5 and the soft end of inner core, the high-accuracy MICROBEAM PLASMA WELDING machine of spring 4 processes is welded on the soft end of micro-wire inner core, and forms pad 5 at soft end; Wherein, pad 5 presents hemispherical or drops, and its any surface finish, no burr.
Below with the application of micro-wire in blood vessel diagnosis and treatment process, the using method of the micro-wire that this utility model provides is described, it will be appreciated by those skilled in the art that the micro-wire that this utility model embodiment provides is not limited to the application of blood vessel diagnosis and treatment process, and can be applicable to other medical diagnosis and treatment process.
Carrying out cardiovascular and cerebrovascular vessel when operation, need accurately reach diseased region in the blood vessel by means of micro-wire.Particularly, after the micro-wire that this utility model embodiment is provided entered into blood vessel by puncture class needle tubing, the tail end in conjunction with moment of torsion control micro-wire made micro-wire can enter into the pathological changes lacuna of vessel branch smoothly, to give corresponding treatment.Because the micro-wire inner core that this utility model embodiment provides is to form through the secondary skiving, increase the elasticity and the flexibility of micro-wire, simplified operation technique, and because the support portion is Paint Gloss, thereby the generation of complication when having reduced vascular surgery has reduced the emergency risk that patient bore.
The micro-wire inner core that this utility model embodiment provides is made of support portion, transition part and guide part successively, transition part and guide part are gradually thin and have the structure of tapering, and the maximum gauge of transition part is less than or equal to the diameter of support portion, the minimum diameter of transition part is more than or equal to the maximum gauge of guide part, since have simultaneously two progressive and form by the part of tapering, the elasticity and the flexibility that adopt the micro-wire that this micro-wire inner core makes have been improved, make its front end in operation process, be difficult for the distortion that gives a discount, thereby simplified operation technique; Have, the surface of support portion evenly is coated with Teflon again, thereby has reduced the skin-friction coefficient of support portion, makes the support portion Paint Gloss, and then has reduced the complication that operation produces; Have, inner core and spring all adopt 0Cr19Ni9 stainless steel silk or 0Cr18Ni9 stainless steel silk (being the 304# stainless steel silk) to make, and have strengthened the decay resistance of micro-wire again.
The above only is preferred embodiment of the present utility model; not in order to restriction this utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1, a kind of micro-wire inner core, it is characterized in that, described micro-wire inner core is made of support portion, transition part and guide part successively, described transition part and guide part are gradually thin and have the structure of tapering, the maximum gauge of described transition part is less than or equal to the diameter of described support portion, and the minimum diameter of described transition part is more than or equal to the maximum gauge of described guide part.
2, micro-wire inner core as claimed in claim 1 is characterized in that, the surface-coated of described support portion has hydrophilic coating.
3, micro-wire inner core as claimed in claim 2 is characterized in that, described hydrophilic coating is a teflon layer.
4, micro-wire inner core as claimed in claim 1 is characterized in that, the diameter of described support portion is 0.25mm, 0.30mm or 0.35mm.
5, micro-wire inner core as claimed in claim 1 is characterized in that, the length of described transition part is 10cm～15cm.
6, micro-wire inner core as claimed in claim 1 is characterized in that, the length of described guide part is 8cm～10cm.
7, micro-wire inner core as claimed in claim 6 is characterized in that, the diameter at thin position of described guide part is 0.08mm～0.10mm.
8, a kind of micro-wire comprises micro-wire inner core and the spring that is set in the front end of described micro-wire inner core, it is characterized in that, described micro-wire inner core adopts as each described micro-wire inner core of claim 1 to 7.
9, micro-wire as claimed in claim 8 is characterized in that, described spring is that 0Cr19Ni9 stainless steel silk or the 0Cr18Ni9 stainless steel silk of 0.05mm～0.06mm is entwined by diameter, and the diameter of described spring is consistent with the diameter of described support portion.
10, micro-wire as claimed in claim 8 is characterized in that, the front end welding of the front end of described spring and described micro-wire inner core forms a pad, and described pad is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201315342U CN201414816Y (en) | 2009-05-08 | 2009-05-08 | Micro-guide wire inner core and micro-guide wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201315342U CN201414816Y (en) | 2009-05-08 | 2009-05-08 | Micro-guide wire inner core and micro-guide wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414816Y true CN201414816Y (en) | 2010-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201315342U Expired - Lifetime CN201414816Y (en) | 2009-05-08 | 2009-05-08 | Micro-guide wire inner core and micro-guide wire |
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| CN (1) | CN201414816Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178223A (en) * | 2015-05-29 | 2016-12-07 | 株式会社Fmd | Medical Guide Wire |
| CN111805108A (en) * | 2019-04-11 | 2020-10-23 | 微创龙脉医疗科技(嘉兴)有限公司 | Medical guide wire and method for welding and forming head end thereof |
| CN114618070A (en) * | 2022-01-27 | 2022-06-14 | 聚辉医疗科技(深圳)有限公司 | Micro-guide wire |
-
2009
- 2009-05-08 CN CN2009201315342U patent/CN201414816Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178223A (en) * | 2015-05-29 | 2016-12-07 | 株式会社Fmd | Medical Guide Wire |
| CN106178223B (en) * | 2015-05-29 | 2018-02-09 | 株式会社Fmd | Medical guide wire |
| CN111805108A (en) * | 2019-04-11 | 2020-10-23 | 微创龙脉医疗科技(嘉兴)有限公司 | Medical guide wire and method for welding and forming head end thereof |
| CN114618070A (en) * | 2022-01-27 | 2022-06-14 | 聚辉医疗科技(深圳)有限公司 | Micro-guide wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YIXINDA MEDICAL NEW TECHNOLOGY CO., LTD., SHENZHEN Free format text: FORMER OWNER: SHENZHEN CITY DIHAI TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20101025 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518172 ROOM 508, ZONE 2, OVERSEAS STUDENTS VENTURE PARK, LONGGANG DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518116 NO.4, BAOLONG ROAD 6, BAOLONG INDUSTRIAL CITY, LONGGANG DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101025 Address after: Baolong Baolong Industrial City six road in Longgang District of Shenzhen City, Guangdong Province, No. 4 518116 Patentee after: SCW Medicath Ltd. Address before: 518172 room two, 508 garden, overseas student Pioneer Park, Longgang District, Shenzhen, Guangdong Patentee before: Shenzhen City Dihai Technology Development Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |
|
| CX01 | Expiry of patent term |