CN207912722U - Importing sheath and embolism device for embolism device - Google Patents
Importing sheath and embolism device for embolism device Download PDFInfo
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- CN207912722U CN207912722U CN201720562354.4U CN201720562354U CN207912722U CN 207912722 U CN207912722 U CN 207912722U CN 201720562354 U CN201720562354 U CN 201720562354U CN 207912722 U CN207912722 U CN 207912722U
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Abstract
The utility model discloses a kind of importing sheaths and embolism device for embolism device, it includes the second tube body of taper using no polytetrafluoroethyllining lining and the first tube body with polytetrafluoroethyllining lining wherein to import sheath, by the excellent properties of polytetrafluoroethylene (PTFE) itself, it reduces entire embolization device and is importing the push resistance reduction in sheath, improve positioning accuracy and controllability when therapeutic device push；Simultaneously because first tube body for importing sheath is double-layer structure, compared to the importing sheath of other same size, importing sheath hardness provided in the utility model can significantly improve, and be easier when operation to control, and sheath will be smoothly imported convenient for doctor and is inserted into microtubular tube socket bottom.
Description
Technical field
The utility model is related to the field of medical instrument technology more particularly to a kind of importing sheath can be used for embolization device and
Embolism device.
Background technology
Micro trauma interventional treatment carries out under image-guided, with minimum wound by medical instrument implant or drug
Lesion locations are transported to, the minimally invasive treatment technology that physics is carried out to it, is mechanically or chemically treated.Wherein, aneurysmal treatment
The always hot issue in interventional treatment field, the therapy of mainstream has simple Coil embolization to treat at present, sacculus assists
Spring ring treatment, the treatment of holder secondary spring circle, the treatment of blood flow guider etc..Spring ring and blood flow guider are treatments
Various aneurysmal effective embolization devices, there are one common features for the use of this embolization device, are exactly both needed to before use
It to be imported into microtubular by an external sheath that imports, then can just be transported to target lesion position, embolization device energy
The no microtubular that smoothly imports is played a key role to entirely intervening operation.
The straight tube that various embolism spring rings and blood flow guider at present on the market mostly use single-layer resin tube wall imports
Sheath, in practical applications, push resistance of the embolization device in importing sheath are big, and are limited to pipe wall material, middle long sheath
It is easy bending, is unfavorable for user and holds process.
Invention content
In view of the above-mentioned state of the art, the purpose of this utility model is to provide a kind of importing sheath for embolization device
Pipe reduces resistance during push, improves smoothness when embolization device imports microtubular, while importing the intensity of sheath
Also corresponding to increase, improve positioning accuracy and controllability when therapeutic device push.
In order to solve the above technical problems, the utility model provides a kind of importing sheath for embolism device, including：First
Tube body, first tube body include outer tube and inner sleeve, and the inner sleeve is polytetrafluoroethylene material, further includes the second pipe
Body, second tube body includes first end and second end, and first tube body includes third end and the 4th end；Wherein, described
Two ends are correspondingly connected with the third end, the outer diameter at the 4th end and the outer diameter of the second end, the outer diameter at the third end
All same；The outer diameter of the first end is less than the outer diameter of the second end；The internal diameter of the first end is interior with the second end
The internal diameter all same of diameter, the inner sleeve.
Further, the outer tube of first tube body and second tube body are integrally formed.
Further, label pipe is nested on the outer wall of the outer tube.
Further, the 4th end of first tube body is connected with horn-like interface.
Further, the inner sleeve is pressed with the outer tube heat seal.
Further, second tube length is 0.5-3cm, and cone angle is 5-30 °.
Further, the material of the outer tube of first tube body and second tube body is nylon, Pebax, poly- second
Alkene, polypropylene etc. are any.
Second aspect, the invention also discloses blood flow guider, including webmaster holder, conveyer and as described above
Importing sheath, be set with the webmaster holder in the conveying device, and be installed on the inner cavity for importing sheath.
Further, the conveyer includes push seal wire, and the left end of the push seal wire is connected with guide spring, described
The first development code quarter, friction sleeve and the second development code is set on push seal wire successively from left to right to carve.
The third aspect, the invention also discloses a kind of Coil embolization device, including push seal wire, implantation spring ring and
It is as described above to import sheath, wherein being set with development code on the push seal wire carves and locks pipe, the implantation spring connection
It is fixedly installed in the importing sheath on the push seal wire and by the locking pipe.
In the importing sheath provided by the utility model for embolization device, using the taper of no polytetrafluoroethyllining lining
Second tube body reduces whole with the first tube body with polytetrafluoroethyllining lining by the excellent properties of polytetrafluoroethylene (PTFE) itself
A embolization device is importing the push resistance reduction in sheath, improves positioning accuracy and controllability when therapeutic device push；
Simultaneously because first tube body for importing sheath is double-layer structure, compared to the importing sheath of other same size, originally
Importing sheath hardness provided in utility model can significantly improve, and be easier when operation to control, will smoothly be led convenient for doctor
Enter sheath and is inserted into microtubular tube socket bottom.
Description of the drawings
Fig. 1 is importing sheath structural schematic diagram provided by the utility model；
Fig. 2 is a kind of importing sheath structural schematic diagram being mounted with blood flow guider；
Fig. 3 is a kind of importing sheath structural schematic diagram being mounted with embolism spring ring.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Referring to FIG. 1, its importing sheath structural schematic diagram for the embolization device of the utility model embodiment.Such as Fig. 1 institutes
Show, in the embodiment of the present application, the importing sheath includes：First tube body 2, first tube body include outer tube 3 and inner sleeve
Pipe 4, the inner sleeve are polytetrafluoroethylene material, further include the second tube body 1, second tube body includes first end 5 and second
End 6, first tube body includes third end 7 and the 4th end 8；Wherein, the second end is correspondingly connected with the third end, described
The outer diameter at the 4th end and the outer diameter of the second end, the outer diameter all same at the third end；The outer diameter of the first end is less than institute
State the outer diameter of second end；The internal diameter of the first end and the internal diameter of the second end, the internal diameter all same of the inner sleeve.Poly- four
Vinyl fluoride is commonly referred to as " non-sticking lining " or " material easy to clean ", and this material has antiacid alkali resistant, resists various organic solvents
Feature is practically insoluble in all solvents；Meanwhile polytetrafluoroethylene (PTFE) has the characteristics that heat safe, its friction coefficient is extremely low, institute
After it can make lubricating action, also become the first choice of ultra-thin sheath inner layer material.As a result, by by heat seal method and institute
The excellent properties for stating the polytetrafluoroethylene (PTFE) itself that outer tube is assemblied together reduce entire embolization device and are importing in sheath
Resistance is pushed, positioning accuracy and controllability when therapeutic device push are improved；Simultaneously because described import described the of sheath
One tube body is double-layer structure, and compared to the importing sheath of other same size, the importing sheath provided in the utility model is hard
Degree can significantly improve, and be easier when operation to control, and sheath will be smoothly imported convenient for doctor and is inserted into microtubular tube socket bottom.
As shown in Figure 1, shown second tube body is in the pipe thickness for boring bottom and the first tube body phase for being lined with polytetrafluoroethylene (PTFE)
Together, i.e., described first tube body is in step-like in junction with second tube body, to balance the polytetrafluoroethylene (PTFE) inner sleeve
Thickness, i.e., the described sheath that imports have whole consistent inner cavity；, in this way, the embolization device can be smoothed in importing sheath
It crosses.In actual use, the inner cavity internal diameter is mostly 0.015-0.030 inches, outer diameter 0.6-1.5mm, the polytetrafluoroethyl-ne
The thickness of alkene inner sleeve is 0.0005-0.0020 inches, and the entire length for importing sheath is 500-1300mm.
As shown in Figure 1, the tapered design of the second tube body for importing sheath, pipe range 5-30mm, cone angle are 5-30 °.
In actual application, it will usually according to aneurysm and parent artery angulation and aneurysm cavity center to parent artery side
Microtubular tube socket is moulded into different shape by the distance of wall, and the design for importing the second tube body taper of sheath reduces importing sheath
Pipe is inserted into the resistance of microtubular tube socket bottom, is conducive to it and is inserted into the conical lower portion of microtubular tube socket to greatest extent.Into one
Step, the 4th end of first tube body is connected with horn-like interface, and importing sheath can be smoothly loaded into convenient for conveying device
While interior, the contact area between the 4th end of sheath and the parts of its outer surface cooperation is also increased.
As shown in Figure 1, being nested with label pipe 9 on the outer wall of the outer tube, the length of the label pipe is 1-3cm；
The label pipe selects the color different from first tube body to be distinguished to show simultaneously, such as when the first tube body is water white transparency,
The label pipe uses black or other to be clearly distinguishable from the color of first tube body, and in practical applications, the label is managed
Optional pet material is made.The use of the label pipe can prompt the importing sheath to be inserted into tube socket
The setting of state afterwards, black or other colors can distinguish the label pipe and first tube body, quick convenient for user
Read insert state.
As shown in Figure 1, in order to produce facility, the outer tube is integrally formed with second tube body, first pipe
Body and second tube body are made by nylon, Pebax, polyethylene, polypropylene etc. are any, above-mentioned material have soft, toughness is big,
The advantages that friction coefficient is low and good biocompatibility, is widely used in easy-to-use catheter arts, while Pebax materials have
A variety of hardness washabilitys, in order to ensure to import the integral strength of sheath, the hardness of the first tube body and second tube body is set as
Shore hardness 50-80D；Pebax has stronger tolerance to various chemical substances simultaneously, is not easy rotten by salt or sulfuric acid
Erosion.
Fig. 2 is a kind of schematic diagram for the blood flow guider being mounted with blood flow guider, as shown in Fig. 2, including net
Pipe holder 15, conveyer and sheath is imported as described above, the conveyer is set with the webmaster holder, and is installed on described lead
Enter the inner cavity of sheath, the conveyer includes push seal wire 12, and the left end of the push seal wire is connected with guide spring 21, described
It is set with the first development code on push seal wire successively from left to right and carves 16, friction sleeve 14 and second development code quarter 13.Import sheath
The first tube body use nylon material, resin hardness 80D；The overall length for importing sheath is 600mm, outer diameter 1.3mm, and internal diameter is
0.027 inch；PTFE thickness of inner lining is 0.0010 inch；Third end 30mm of the push label pipe apart from first tube body, mark
Note length of tube is 10mm.It imports in sheath and is connected in horn-like interface 17, facilitate conveyer and be smoothly loaded into importing sheath
It is interior.Operation consent is arranged webmaster holder 15, and the horn mouth 17 by importing sheath between the double-developing code of the conveyer is carved
Be inserted into import sheath in, wherein the webmaster holder with the friction sleeve by frictionally securing.When operation, completion will be loaded
The importing sheath by intervene mouth be pushed into arteries it is aneurysmal nearby, push seal wire is then pushed, according to described pair
The positioning that the code that develops is carved, the blood flow guider is transported at aneurysm, forms a fan " gate ".For the pusher
In the smooth of push process, usually also protection ball cap 11 is equipped in the other end of the guide spring.The webmaster holder is dynamic
" gate " formed at arteries and veins tumor directly prevents blood from flowing into aneurysm knurl, once blood is cut off in knurl, thrombus meeting
It is gradually formed in knurl, while endo cell can be grown on holder grid, to rebuild normal blood vessel.
Fig. 3 is a kind of importing sheath structural schematic diagram being mounted with embolism spring ring, as shown in figure 3, including push seal wire
20, it is implanted into spring ring 18 and imports sheath as described above, wherein being set with development code on the push seal wire carves 22 and locking
Pipe 19, the implantation spring are connected on the push seal wire and are fixedly installed in the importing sheath by the locking pipe
It is interior.The proximal end for importing sheath is in straight, and import sheath proximal end prevents embolism spring ring from importing sheath using mating locking pipe
Interior generation position movement；It imports the first tube body of sheath and uses polypropylene material, resin hardness 75D；Import sheath overall length be
1100mm, outer diameter 0.85mm, internal diameter are 0.020 inch；PTFE thickness of inner lining is 0.0008 inch；Push label pipe away from
From the first tube body tip 40mm, label length of tube is 20mm.After embolism spring ring is loaded into importing sheath, implantation spring distal end
Apart from the importing sheath first end 20mm, first the locking pipe for importing the 4th end of sheath is removed using preceding, then by institute
It states and imports the bottom that sheath is inserted into microtubular tube socket, the spring ring smoothly can be pushed into micro- lead by the fixed importing sheath
At tube chamber internal aneurysm position.In order to which the pusher is in the smooth of push process, usually also in the another of the guide spring
End is equipped with protection ball cap 11.After being passed through direct current, the implantation spring ring attraction being connected with the push seal wire is negatively charged
Blood constituent (red blood cell, leucocyte, blood platelet etc.) occur coagulation, thrombus, while the implantation bullet are formed in aneurysm
With the push seal wire connected component because being electrolysed de- disconnection, spring ring is freed to be stayed in aneurysm spring coil.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of which part may be made, and belong to the utility model
Protection domain within.
Claims (10)
1. a kind of importing sheath for embolism device, which is characterized in that including：First tube body, first tube body includes housing
Pipe and inner sleeve, the inner sleeve be polytetrafluoroethylene material, further include the second tube body, second tube body include first end and
Second end, first tube body include third end and the 4th end；Wherein, the second end is correspondingly connected with the third end, institute
State the outer diameter all same of the outer diameter at the 4th end and the outer diameter of the second end, the third end；The outer diameter of the first end is less than
The outer diameter of the second end；The internal diameter of the first end and the internal diameter of the second end, the internal diameter all same of the inner sleeve.
2. as described in claim 1 be used for embolism device importing sheath, which is characterized in that the outer tube of first tube body and
Second tube body is integrally formed.
3. being used for the importing sheath of embolism device as claimed in claim 2, which is characterized in that embedding on the outer wall of the outer tube
It is cased with label pipe.
4. being used for the importing sheath of embolism device as claimed in claim 3, which is characterized in that the 4th end of first tube body connects
It is connected to horn-like interface.
5. being used for the importing sheath of embolism device as claimed in claim 4, which is characterized in that the inner sleeve and the outer tube
Heat seal is pressed.
6. being used for the importing sheath of embolism device as claimed in claim 5, which is characterized in that second tube length is 0.5-
3cm, cone angle are 5-30 °.
7. being used for the importing sheath of embolism device as claimed in claim 6, which is characterized in that first tube body and described second
Tube body material is nylon, Pebax, polyethylene or polypropylene.
8. a kind of blood flow guider, which is characterized in that including webmaster holder, conveyer and such as any one of claim 1-7 institutes
The importing sheath stated is set with the webmaster holder on the conveyer, and is installed on the inner cavity for importing sheath.
9. blood flow guider as claimed in claim 8, which is characterized in that the conveyer includes push seal wire, described to push away
It send the left end of seal wire to be connected with guide spring, is set with the first development code on the push seal wire successively from left to right and carves, rub
Set and the second development code are carved.
10. a kind of Coil embolization device, which is characterized in that including push seal wire, implantation spring ring and as claim 1-7 is any
Importing sheath described in, wherein being set on the push seal wire, development code is carved and locking pipe, the implantation spring are connected to
On the push seal wire, and it is fixedly installed in the importing sheath by the locking pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720562354.4U CN207912722U (en) | 2017-05-19 | 2017-05-19 | Importing sheath and embolism device for embolism device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720562354.4U CN207912722U (en) | 2017-05-19 | 2017-05-19 | Importing sheath and embolism device for embolism device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207912722U true CN207912722U (en) | 2018-09-28 |
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ID=63612234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720562354.4U Active CN207912722U (en) | 2017-05-19 | 2017-05-19 | Importing sheath and embolism device for embolism device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207912722U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113827386A (en) * | 2021-11-29 | 2021-12-24 | 艾柯医疗器械(北京)有限公司 | Self-expanding type stent leading-in device |
| WO2022041593A1 (en) * | 2020-08-24 | 2022-03-03 | 北京泰杰伟业科技有限公司 | Blood flow guide device conveying system capable of visual tracking and positioning, and tracking and positioning method |
| CN116617544B (en) * | 2023-06-09 | 2024-04-26 | 株洲茂物医疗科技有限公司 | Method for manufacturing guide wire and guide wire |
-
2017
- 2017-05-19 CN CN201720562354.4U patent/CN207912722U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041593A1 (en) * | 2020-08-24 | 2022-03-03 | 北京泰杰伟业科技有限公司 | Blood flow guide device conveying system capable of visual tracking and positioning, and tracking and positioning method |
| CN113827386A (en) * | 2021-11-29 | 2021-12-24 | 艾柯医疗器械(北京)有限公司 | Self-expanding type stent leading-in device |
| CN113827386B (en) * | 2021-11-29 | 2022-03-29 | 艾柯医疗器械(北京)有限公司 | Self-expanding type stent leading-in device |
| CN116617544B (en) * | 2023-06-09 | 2024-04-26 | 株洲茂物医疗科技有限公司 | Method for manufacturing guide wire and guide wire |
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Address after: 101204 building 4, yard 21, Panlong West Road, Mafang Town, Pinggu District, Beijing Patentee after: Beijing Taijieweiye Technology Co.,Ltd. Address before: 101300 Caida Third Street, Nancai Town, Shunyi District, Beijing Patentee before: BEIJING TAIJIE WEIYE TECHNOLOGY Co.,Ltd. |