CN203777462U - Medical guide wire - Google Patents
Medical guide wire Download PDFInfo
- Publication number
- CN203777462U CN203777462U CN201320816132.2U CN201320816132U CN203777462U CN 203777462 U CN203777462 U CN 203777462U CN 201320816132 U CN201320816132 U CN 201320816132U CN 203777462 U CN203777462 U CN 203777462U
- Authority
- CN
- China
- Prior art keywords
- guidewire
- medical
- section
- medical guidewire
- compliant section
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 12
- 210000004204 blood vessel Anatomy 0.000 description 8
- 210000002254 renal artery Anatomy 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 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 description 3
- 229910001000 nickel titanium Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000002679 ablation Methods 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- -1 platinumiridio Substances 0.000 description 1
- 229950000845 politef Drugs 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides a medical guide wire which can be used for conveying a spiral guide tube. The medical guide wire comprises a guide wire body, one end of the guide wire body is directly connected with a flexible section of which the length is within 45 mm; or one end after thinning is connected with a flexible section of which the length is within 30 mm, wherein the length of the thinned part is within 8 mm.
Description
Technical field
This utility model relates to a kind of medical guidewire.
Background technology
Medical guidewire (be sometimes called for short and make " seal wire " below) is a kind of insertion in conduit, for conduit provides the instruments for interventional therapy of guiding and supporting.Thereby seal wire can help conduit to arrive target position to be carried out mapping, melts or the operation such as mounting bracket.
The general structure of seal wire is to comprise guidewire body and soft section, the most far-end of existing medical guidewire has good compliance, and the length of soft section is longer, and the support force of its changeover portion is not enough, can not be effectively that spiral duct support is straight, be difficult to conveyor screw shape conduit.
Summary of the invention
In view of this, this utility model provides a kind of medical guidewire, can conveyor screw shape conduit.
For achieving the above object, according to an aspect of the present utility model, provide a kind of medical guidewire.
Medical guidewire of the present utility model comprises guidewire body, described guidewire body one end be directly connected with length at 45mm with interior compliant section; Or its one end receive be connected with after thin length at 30mm with interior compliant section, receive the length of thin part in 8mm.
Alternatively, described medical guidewire also comprises far-end fixing head, is connected to the end of described compliant section, the macromolecular material that the material of described far-end fixing head is X-ray opaque or metal material.
Alternatively, described compliant section is made by macromolecular material.
Alternatively, in described macromolecular material, contain roentgenopaque material.
Alternatively, described compliant section is directly connected in guidewire body, receives thin from Qi Xiang end, junction with conical gradual change.
Alternatively, described conical base angle is between 150 ° to 170 °.
Alternatively, the length of described compliant section is in 20mm.
Alternatively, described compliant section is spring protecting sleeve.
Alternatively, described spring protecting sleeve be shaped as cylindrical or conical.
Alternatively, described guidewire body is connected with described spring protecting sleeve after receiving carefully, and the length of described spring protecting sleeve is in 10mm.
Alternatively, described medical guidewire also comprises far-end fixing head, is connected to the end of described spring protecting sleeve, the macromolecular material that the material of described far-end fixing head is X-ray opaque or metal material.
Alternatively, one end that described guidewire body is directly connected with described spring protecting sleeve from it, in described spring protecting sleeve, extend one section isometrical section, this isometrical section is connected with described far-end fixing head.
Alternatively, the material of described spring protecting sleeve is metal.
Alternatively, described medical guidewire outer surface scribbles hydrophilic coating.
Alternatively, in described compliant section and the direct junction of described guidewire body, or in described compliant section and described guidewire body one end, receive the junction after thin, be provided with by roentgenopaque metal developing ring.
According to the technical solution of the utility model, seal wire has shorter compliant section, by guidewire body, screw type conduit support is straight, thus can conveyor screw type conduit and seal wire front end be unlikely to damage tissue.
Accompanying drawing explanation
Accompanying drawing, for understanding this utility model better, does not form improper restriction of the present utility model.Wherein:
Fig. 1 is according to the schematic diagram of the structure of the seal wire of this utility model embodiment;
Fig. 2 is according to the schematic diagram of the first seal wire of this utility model embodiment;
Fig. 3 is according to the schematic diagram of the second seal wire of this utility model embodiment;
Fig. 4 is according to the schematic diagram of the third seal wire of this utility model embodiment;
Fig. 5 is according to the schematic diagram of the 4th of this utility model embodiment the kind of seal wire;
Fig. 6 is according to the seal wire of this utility model embodiment and the matching used schematic diagram of conduit.
The specific embodiment
Below in conjunction with accompanying drawing, one exemplary embodiment of the present utility model is explained, comprising the various details of this utility model embodiment, to help understanding, they should be thought to be only exemplary.Therefore, those of ordinary skills will be appreciated that, can make various changes and modification to the embodiments described herein, and can not deviate from scope and spirit of the present utility model.Equally, for clarity and conciseness, in following description, omitted the description to known function and structure.
Fig. 1 is according to the schematic diagram of the structure of the seal wire of this utility model embodiment.As shown in Figure 1, seal wire 10 comprises guidewire body 11 and the compliant section 12 that is connected to these guidewire body 11 one end.The two directly connects, and the length of compliant section 12 is in 45mm.Guidewire body 11 is connected with compliant section 12 after also can receiving carefully, receives the length of thin part in 8mm, and the length of compliant section 12 is in 30mm.Guidewire body 11 can adopt Nitinol or rustless steel to make.When seal wire 10 work, can be penetrated in screw type conduit, guidewire body 11 is straight by the support of screw type conduit, is transported to after target position, withdraws seal wire 10, and this screw type conduit reverts to helical form, thereby the operation such as can melt.The main purpose that has compliant section is that seal wire front end is not stung and tissue, so in order to make screw type conduit arrive as early as possible target position and to make the darker position from target spot have less catheter proximal end length, compliant section 12 is unsuitable long, and should be short as much as possible.
The front end of the seal wire 10 in the present embodiment can arrange a fixing head, as shown in Figure 1.Fixing head 13 is made for the metal material of X-ray opaque, can be rustless steel, Nitinol, platinum, gold, silver etc., can be also to sneak into the not macromolecular material of X ray material thoroughly such as barium sulfate.The diameter of fixing head 13 is not more than the diameter of the main body of seal wire 10, and the diameter of fixing head 13 is 0.1mm to 1.2mm, and length is 0.1 to 2.0mm.While advancing in human body in order to reduce seal wire and the frictional force on tissue surface, except make as far as possible the Surface Machining of seal wire 10 obtain smooth, the surface of seal wire 10 can be coated with one deck hydrophilic coating, for example politef or polyurethane.
Compliant section 12 can arrange a developing ring (not shown) with the junction of guidewire body 11, and this developing ring can be formed by roentgenopaque preparation of metals, conventionally adopts the materials such as rustless steel, Nitinol, platinumiridio, gold, silver, platinum.Developing ring can be located exactly medical guidewire and be entered into the degree of depth in body vessels, and the site of simultaneously developing is also the boundary site of medical guidewire different hardness, is convenient to can judge accurately under X ray that medical guidewire stretches out the length of spiral duct.Especially, when medical guidewire and screw type conduit are used in conjunction with, can confirm the position that conduit will arrive by the development site on medical guidewire, then conduit successfully can be delivered to this position.
Below in conjunction with accompanying drawing, several optional structure of the seal wire in the present embodiment is explained.
Fig. 2 is according to the schematic diagram of the first seal wire of this utility model embodiment.As shown in Figure 2, main body 21 ends of seal wire 20 are connected with one section of macromolecular material as compliant section 22, and this compliant section 22 is conical and to free end 24, shrinks from junction 23.The angle beta shrinking is 150 ° to 175 °, is preferably 170 °, is beneficial to medical guidewire and enters in thinner blood vessel.The diameter of main body 21 can be 0.2mm.The length of compliant section 22 can be in 20mm.
Fig. 3 is according to the schematic diagram of the second seal wire of this utility model embodiment.As shown in Figure 3, the main body 31 of seal wire 30 has one section and receives thin part in its one end, and the thin part of these receipts forms changeover portion 32, and the compliant section 33 made from macromolecular material is connected.The length of the A section in figure is not more than 8mm, and preferably, in 5mm, the length of B section is not more than 30mm.
Fig. 4 is according to the schematic diagram of the third medical guidewire of this utility model embodiment.As shown in Figure 4, one end of the main body 41 of seal wire 40 is received and is carefully then connected with the spring protecting sleeve 42 as compliant section.The diameter of main body 41 can be 0.2mm.In figure, the preferred value at γ angle is 30 °, and the length of C section can be 5mm, and the length of D section is preferably not more than 10mm.
Fig. 5 is according to the schematic diagram of the 4th of this utility model embodiment the kind of seal wire.As shown in Figure 5, the main body 56 of seal wire 55 is connected with isometrical section 57.Length as the spring protecting sleeve 58 of compliant section is preferably not more than 45mm, and the diameter of seal wire 55 can be 0.356mm.The Main Function of isometrical section 57 is to provide certain support force to long spring.
When the various seal wires that use the present embodiment are inserted blood vessel by screw type catheter, can first seal wire be passed into end has the conduit of spiral section and makes this seal wire that the spiral section support of this conduit is straight, then spiral section is supportted to the straight and inner conduit with this seal wire and passed into blood vessel, make to be supportted this straight spiral section and arrive the target location in blood vessel, finally withdraw seal wire and make conduit revert to screw type; Also can first seal wire be passed into blood vessel, thereby the spiral section then end to the conduit of spiral section is enclosed within on seal wire this spiral section is supportted directly, then advance this conduit to make it be supportted straight spiral section and arrive the target location in blood vessel, finally withdraw seal wire and make conduit revert to screw type.Below in conjunction with Fig. 9, for the practical operation of catheter product, explain, Fig. 9 is according to the seal wire of this utility model embodiment and the matching used schematic diagram of conduit.
Electrophysiologicalcatheter catheter 60 comprises spiral section conduit 61, catheter main body 62, handle 63.Wherein on spiral section conduit 61, there are a plurality of ablating electrodes, on handle 63, have push button 64, buttock line socket 65, female Luer 66.Spiral section conduit 61 contains a guidewire lumen (not shown), and this guidewire lumen is communicated with the guidewire lumen (not shown) in catheter main body 62, and then guidewire lumen connects female Luer 66 through handle 63, and guidewire lumen is at conduit 60 internal run-throughs.The compliant section 69 of seal wire passes in conduit 60 from female Luer 66, and after the guidewire lumen in conduit 60, from the far-end 68 of conduit 60 out, now spiral section conduit 61 is directly linear type conduit 67 by support.This linear type conduit 67 arrives in renal artery blood vessel through femoral artery is customary, after X-ray machine radiography, confirm that conduit 60 far-ends 68 do not enter renal artery branch blood vessel, and the compliant section length of seal wire is 10mm, the compliant section of seal wire enters renal artery vessel branch, but thereby this compliant section has super-elasticity because having the cavity of spring formation, can not damage renal artery branch blood vessel, can induced renal damage yet.Now withdraw seal wire and make conduit 60 revert to screw type, now, the ablating electrode of conduit 60 can abut in the target spot position of renal artery blood vessel, thereby can effectively melt electric discharge.Conduit 60 is not only applicable to the endovascular ablation of renal artery, be also applicable to by seal wire by screw type catheter delivery in other vasculars of human body, carry out ablation.
According to the technical scheme of above-described embodiment, seal wire has shorter compliant section, by guidewire body, screw type conduit support is straight, thus can conveyor screw type conduit and seal wire front end be unlikely to damage tissue.
The above-mentioned specific embodiment, does not form the restriction to this utility model protection domain.Those skilled in the art should be understood that, depend on designing requirement and other factors, various modifications, combination, sub-portfolio can occur and substitute.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in this utility model protection domain.
Claims (15)
1. a medical guidewire, comprises guidewire body, it is characterized in that,
Described guidewire body one end be directly connected with length at 45mm with interior compliant section; Or its one end receive be connected with after thin length at 30mm with interior compliant section, receive the length of thin part in 8mm.
2. medical guidewire according to claim 1, is characterized in that, described medical guidewire also comprises far-end fixing head, is connected to the end of described compliant section, the macromolecular material that the material of described far-end fixing head is X-ray opaque or metal material.
3. medical guidewire according to claim 1, is characterized in that, described compliant section is made by macromolecular material.
4. medical guidewire according to claim 3, is characterized in that, contains roentgenopaque material in described macromolecular material.
5. medical guidewire according to claim 4, is characterized in that, described compliant section is directly connected in guidewire body, receives thin from Qi Xiang end, junction with conical gradual change.
6. medical guidewire according to claim 5, is characterized in that, described conical base angle is between 150 ° to 170 °.
7. medical guidewire according to claim 5, is characterized in that, the length of described compliant section is in 20mm.
8. medical guidewire according to claim 1, is characterized in that, described compliant section is spring protecting sleeve.
9. medical guidewire according to claim 8, is characterized in that, being shaped as of described spring protecting sleeve is cylindrical or conical.
10. medical guidewire according to claim 8, is characterized in that, described guidewire body is connected with described spring protecting sleeve after receiving carefully, and the length of described spring protecting sleeve is in 10mm.
11. medical guidewires according to claim 8, is characterized in that,
Described medical guidewire also comprises far-end fixing head, is connected to the end of described spring protecting sleeve, the macromolecular material that the material of described far-end fixing head is X-ray opaque or metal material.
12. medical guidewires according to claim 11, is characterized in that,
One end that described guidewire body is directly connected with described spring protecting sleeve from it, in described spring protecting sleeve, extend one section isometrical section, this isometrical section is connected with described far-end fixing head.
13. according to the medical guiding wire described in any one in claim 7 to 12, it is characterized in that, the material of described spring protecting sleeve is metal.
14. according to the medical guidewire described in any one in claim 1 to 12, it is characterized in that, described medical guidewire outer surface scribbles hydrophilic coating.
15. according to the medical guidewire described in any one in claim 1 to 12, it is characterized in that, in described compliant section and the direct junction of described guidewire body, or in described compliant section and described guidewire body one end, receive the junction after thin, be provided with by roentgenopaque metal developing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816132.2U CN203777462U (en) | 2013-12-10 | 2013-12-10 | Medical guide wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816132.2U CN203777462U (en) | 2013-12-10 | 2013-12-10 | Medical guide wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203777462U true CN203777462U (en) | 2014-08-20 |
Family
ID=51313697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816132.2U Expired - Lifetime CN203777462U (en) | 2013-12-10 | 2013-12-10 | Medical guide wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203777462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041993A (en) * | 2017-05-03 | 2017-08-15 | 北京灵泽医药技术开发有限公司 | A kind of medical guiding wire and medical tubing |
-
2013
- 2013-12-10 CN CN201320816132.2U patent/CN203777462U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041993A (en) * | 2017-05-03 | 2017-08-15 | 北京灵泽医药技术开发有限公司 | A kind of medical guiding wire and medical tubing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201318 Shanghai city Pudong New Area zhouputown Tianxiong road 588 Lane twenty-eighth Building No. 1-28 Patentee after: SHANGHAI MICROPORT EP MEDTECH Co.,Ltd. Address before: 201318 building 28, Lane 588, Tianxiong Road, Zhoupu Town, Pudong New Area, Shanghai Patentee before: SHANGHAI MICROPORT EP MEDTECH Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220922 Address after: Room 301, 3rd Floor, Building 28, No. 1_28, Lane 588, Tianxiong Road, Pudong New Area, Shanghai, 201318 Patentee after: Shanghai Hongdian Medical Technology Co.,Ltd. Address before: Building 28, No. 1-28, Lane 588, Tianxiong Road, Zhoupu Town, Pudong New Area, Shanghai, 201318 Patentee before: SHANGHAI MICROPORT EP MEDTECH Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
|
| CX01 | Expiry of patent term |