CN106823108A - A kind of hypotube - Google Patents
A kind of hypotube Download PDFInfo
- Publication number
- CN106823108A CN106823108A CN201510884451.0A CN201510884451A CN106823108A CN 106823108 A CN106823108 A CN 106823108A CN 201510884451 A CN201510884451 A CN 201510884451A CN 106823108 A CN106823108 A CN 106823108A
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- Prior art keywords
- silk
- lining
- hypotube
- lining silk
- hollow structure
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Abstract
The embodiment provides a kind of hypotube, including：Body, body is a hollow structure；Lining silk, the first end for serving as a contrast silk is located in hollow structure, the second end for serving as a contrast silk is located in the tube chamber of the distal end body of rod of sacculus dilating catheter, and the distance between first end of the guidewire port on sacculus dilating catheter and lining silk is less than the distance between the second end and first end of lining silk of lining silk, and the second end of lining silk is chondritic, part helically structure of the lining silk beyond hollow structure, the cross-sectional area of the part on the external diameter and lining silk of helical structure in addition to chondritic is gradually reduced along near-end to the direction of the distal end for serving as a contrast silk of lining silk, embodiments of the invention are while the full and pumpback speed of sacculus dilating catheter is accelerated, good supporting role can be played to the distal end body of rod tube chamber of sacculus dilating catheter, the axial thrust being effectively applied on body is sent on the distal end body of rod of sacculus dilating catheter.
Description
Technical field
The present invention relates to medical devices field, more particularly to a kind of hypotube.
Background technology
Hypotube refers to the metal tube of near-end (one end near apart from operator) in sacculus dilating catheter,
Human body can be entered in interventional procedure, material is generally the stainless steel of medical grade 304.In Stent,
Hypotube is a part for induction system.Hypotube superior function directly influences the success rate of operation, because
He is that operator pushes whole sacculus dilating catheter into unique force application part in patient body, is also whole ball
The part of maximum intensity in capsule dilating catheter.
At present evaluate hypotube performance refer mainly to indicate：Push power transmission performance, buckle resistance, can reverse
The supportive of property, compliance, tube chamber size and the distal end body of rod to sacculus dilating catheter.Market today Shanghai
The design of wave duct is varied, specifically variant in the following aspects：External surface coating, diameter, wall thickness,
Length and distal end (one end remote apart from operator) form.The structure of wherein distal end form is most complicated, design
Difference is maximum.And distal end form has decided on whether that can will push power passes from the near-end of hypotube to greatest extent
Distal end is sent to, and whether can reach compliance by smoothly transitioning from that near-end to distal end is incremented by, while extra large
Wave duct integrally keeps good buckle resistance energy.
Existing hypotube distal end form is basically divided into three classes：Lining wire type, stepped and cutting-type.
But without seamlessly transitting, proximally body serves as a contrast silk in terms of buckle resistance and compliance to lining wire type to distal end
Change is big and unexpected, simultaneously as lining silk is soft, the enabling capabilities of its distal end body of rod to sacculus dilating catheter
Also it is poor.
Stepped hypotube is by pipe diameter and the length limitation of ladder part, and usual changeover portion is shorter, it is impossible to
Realizing the slow gradual change of submissive performance cannot be also supported to the body of rod of guidewire port more distal portions, and this is just limited
The push power transmission performance of hypotube is made.And the hypotube of step type takes sacculus and expands at guidewire port position
The distal rod intracoelomic cavity large percentage of conduit is opened, easily the full and pumpback time of influence sacculus dilating catheter
(need to inject contrast agent liquid in the distal end body of rod tube chamber to sacculus dilating catheter in interventional procedure
Make balloon expandable).
Cutting-type does the pliability for cutting raising body radial direction that different lines are designed by hypotube body
The conduction of axial force is not influenceed simultaneously.To realize the cooperation cutting-type with the distal end body of rod of sacculus dilating catheter
Hypotube he need be applied in combination with step type because cutting process can only be carried out on complete body.
Relative to step type, the hypotube of cutting-type proximally arrives distal end transition in terms of buckle resistance and compliance and puts down
It is sliding, but equally power cannot will be pushed well be delivered on the body of rod than guidewire port more distal end, also occur
The distal rod intracoelomic cavity large percentage of sacculus dilating catheter is taken at guidewire port position, balloon expandable is easily influenceed
The problem of the full and pumpback time of conduit.
In sum, although in existing hypotube distal end form for cutting-type hypotube can accomplish hypotube from
Near-end transitions smooth in terms of buckle resistance and compliance to distal end, but it still cannot will be applied to hypotube
Axial thrust on near-end (body) is sent on the distal end body of rod of sacculus dilating catheter.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of hypotube, accelerate the full of sacculus dilating catheter and
While pumpback speed, good supporting role can be played to the distal end body of rod tube chamber of sacculus dilating catheter,
The axial thrust being effectively applied on body is sent on the distal end body of rod of sacculus dilating catheter.
In order to achieve the above object, The embodiment provides a kind of hypotube, including：
Body, body is a hollow structure；
Lining silk, the first end for serving as a contrast silk is located in hollow structure, and is fixedly connected with the inwall of hollow structure, is served as a contrast
Second end of silk is located in the distal end body of rod tube chamber of sacculus dilating catheter, and the guidewire port on sacculus dilating catheter
The distance between the second end and first end of lining silk with the distance between the first end of lining silk less than lining silk, and
The second end for serving as a contrast silk is chondritic, wherein
Lining silk beyond hollow structure part helically structure, and axis and the hollow structure of helical structure axle
Line overlaps, and the cross-sectional area of the part on the external diameter and lining silk of helical structure in addition to chondritic is along lining silk
Near-end to the direction of distal end for serving as a contrast silk be gradually reduced.
Wherein, the material of body is 304 stainless steels.
Wherein, the pipe thickness of body is 0.05~0.12 millimeter, and the external diameter of body is 0.5~1.2 millimeter.
Wherein, lining silk uses cross section to be made for circular real core metal silk, and the material of real core metal silk is
304 stainless steels.
Wherein, 30%~50% of the external diameter of a diameter of body of diameter maximum on silk, diameter on lining silk are served as a contrast
A diameter of 0.009~0.011 millimeter at minimum.
Wherein, the length of lining silk is 150~300 millimeters, and the length that lining silk is located in hollow structure is 4~5
Millimeter.
Wherein, lining silk is located at inwall of the part in hollow structure with hollow structure by way of three are spot welded
It is fixedly connected.
Wherein, the pitch of helical structure is 0.1~2 millimeter.
Wherein, external diameter of the external diameter of helical structure top external diameter maximum less than body.
Wherein, a diameter of 0.018~0.022 millimeter of chondritic.
Such scheme of the invention at least includes following beneficial effect：
In an embodiment of the present invention, because lining silk is beyond the part helically structure of hollow structure, therefore lining
The volume that silk takes the distal end body of rod tube chamber of sacculus dilating catheter is few, can accelerate the full of sacculus dilating catheter
With pumpback speed, while the helical structure causes entirely to serve as a contrast the tough flexible, bend resistance of silk, realizing by managing
Body, can be to the remote of sacculus dilating catheter to silk part compliance and while seamlessly transitting of anti-bending strength is served as a contrast
Side pole body tube chamber plays good supporting role, and the axial thrust being effectively applied on body is sent to ball
On the distal end body of rod of capsule dilating catheter, so that it is guaranteed that balloon portion more accurately can be pushed to patient by patient
Diseased region, improve success rate of operation, the recovery time after desmopyknosis, is that patient brings glad tidings.
Brief description of the drawings
Fig. 1 is one of structural representation of hypotube in the embodiment of the present invention；
Fig. 2 is the two of the structural representation of hypotube in the embodiment of the present invention；
Fig. 3 is the three of the structural representation of hypotube in the embodiment of the present invention；
Fig. 4 is one of structural representation of lining silk in the embodiment of the present invention；
Fig. 5 is the two of the structural representation of lining silk in the embodiment of the present invention.
Description of reference numerals：
1st, body；101st, hollow structure；2nd, silk is served as a contrast；201st, chondritic；202nd, solder joint.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawing
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure without should be by
Embodiments set forth here is limited.Conversely, there is provided these embodiments are able to be best understood from this
It is open, and can by the scope of the present disclosure it is complete convey to those skilled in the art.
As shown in Fig. 1~Fig. 5, The embodiment provides a kind of hypotube, the hypotube includes：
Body 1, body 1 is a hollow structure 101；Lining silk 2, the first end for serving as a contrast silk 2 is located at hollow structure 101
It is interior, and be fixedly connected with the inwall of hollow structure 101, the second end for serving as a contrast silk 2 is chondritic 201, and
The second end for serving as a contrast silk 2 is located in the distal end body of rod tube chamber of sacculus dilating catheter, and leading on sacculus dilating catheter
The distance between first end of silk mouth and lining silk 2 is less than between the second end of lining silk 2 and the first end of lining silk 2
Distance, i.e. lining silk 2 the second end extend to guidewire port more distal end sacculus dilating catheter the distal end body of rod
In tube chamber.
It should be noted that above-mentioned hypotube uses existing with the connected mode of the distal end body of rod of sacculus dilating catheter
There is technology to realize, therefore connected mode between hypotube and the distal end body of rod of sacculus dilating catheter is herein no longer
Repeat.
Wherein, in an embodiment of the present invention, above-mentioned lining silk 2 beyond the part of hollow structure 101 helically
Structure, can be overlapped with the bending of pliable blood vessel, and the axis of the helical structure with the axis of hollow structure 101,
The cross-sectional area of the part on the external diameter and lining silk 2 of helical structure in addition to chondritic 201 is along lining silk 2
Near-end to the direction of distal end for serving as a contrast silk 2 be gradually reduced.It should be noted that in order to realize by body 1
Seamlessly transitted to the lining part compliance of silk 2 and anti-bending strength, it is desirable to the helical structure top external diameter maximum
External diameter is less than the external diameter of body 1, while the pitch for requiring the helical structure is 0.1~2 millimeter.
In an embodiment of the present invention, the material of above-mentioned tubular body 1 can be the stainless steel of medical grade 304, certainly may be used
To understand, in an embodiment of the present invention, the specific material of body 1 is not limited.
In an embodiment of the present invention, the pipe thickness of body 1 and external diameter entire body are consistent.Specifically,
The pipe thickness of body 1 is 0.05~0.12 millimeter, and the external diameter of body 1 is 0.5~1.2 millimeter, it is of course possible to
Understand, in an embodiment of the present invention, not limiting the specific size of body 1, i.e. its size can be with
It is adjusted according to actual needs.
In an embodiment of the present invention, above-mentioned lining silk 2 can use cross section to be made for circular real core metal silk,
And the material of real core metal silk can be the stainless steel of medical grade 304.Of course, it should be understood that of the invention
In embodiment, the specific material of lining silk 2 is not limited.
Specifically, the length of lining silk 2 is 150~300 millimeters, and lining silk 2 is located in hollow structure 101
Length is 4~5 millimeters.Additionally, the external diameter of a diameter of body 1 of diameter maximum on lining silk 2
30%~50%, a diameter of 0.01 millimeter ± 10% (i.e. 0.009~0.011 milli on lining silk 2 at diameter minimum
Rice).It is understood that in an embodiment of the present invention, not limiting the specific size of lining silk 2, i.e.,
Its size can be adjusted according to actual needs.
In an embodiment of the present invention, as shown in figure 3, the part that lining silk 2 is located in hollow structure 101 can
Fixed with the inwall of hollow structure 101 by way of 3 points (3 solder joints 202 in such as Fig. 3) are welded
Connection.
In an embodiment of the present invention, the second end of above-mentioned lining silk 2 is designed as chondritic 201, be in order to
Prevent from serving as a contrast the other parts that silk 2 punctures sacculus dilating catheter.Preferably, the chondritic 201 is a diameter of
0.02 millimeter ± 10% (i.e. 0.018~0.022 millimeter), it is of course possible to understanding, in implementation of the invention
In example, the specific size of chondritic 201 is not limited.
It should be noted that in order to prevent from serving as a contrast the other parts that silk 2 punctures sacculus dilating catheter, serving as a contrast silk 2
The second end in addition to being designed as chondritic 201, serve as a contrast silk 2 the second end be also designed to it is round and smooth
Cambered surface.
In an embodiment of the present invention, because lining silk 2 is beyond the part helically structure of hollow structure 101,
Therefore the volume of the distal end body of rod tube chamber that lining silk 2 takes sacculus dilating catheter is few, can accelerate balloon expandable and lead
The full and pumpback speed of pipe, so as to reduce the time that blood flow in surgical procedure is blocked, improves the peace of product
Full property and validity.The helical structure causes entirely to serve as a contrast the tough flexible, bend resistance of silk 2 simultaneously, is realizing
By body 1 to lining the part compliance of silk 2 and while seamlessly transitting of anti-bending strength, can be to balloon expandable
The distal end body of rod tube chamber of conduit plays good supporting role, and the axial direction being effectively applied on body 1 pushes away
Power is sent on the distal end body of rod of sacculus dilating catheter, thereby ensures that patient can more accurately by sacculus portion
Point push to the diseased region of patient, improve success rate of operation, the recovery time after desmopyknosis is patient with
Carry out Gospel.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of hypotube, it is characterised in that including：
Body (1), the body (1) is a hollow structure (101)；
Lining silk (2), it is described lining silk (2) first end be located at the hollow structure (101) in, and with institute
The inwall for stating hollow structure (101) is fixedly connected, and the second end of lining silk (2) is led positioned at balloon expandable
In the distal end body of rod tube chamber of pipe, and guidewire port on the sacculus dilating catheter and lining silk (2) the
The distance between one end is less than between the second end of lining silk (2) and the first end of lining silk (2)
Distance, and the second end of lining silk (2) is chondritic (201), wherein
Lining silk (2) is beyond the part of the hollow structure (101) helically structure, and the spiral
The axis of structure overlaps with the axis of the hollow structure (101), the external diameter of the helical structure and described
The cross-sectional area of the part on lining silk (2) in addition to the chondritic (201) is along lining silk (2)
Near-end to the direction of distal end of lining silk (2) be gradually reduced.
2. hypotube as claimed in claim 1, it is characterised in that the material of the body (1) is 304
Stainless steel.
3. hypotube as claimed in claim 1, it is characterised in that the pipe thickness of the body (1)
It it is 0.05~0.12 millimeter, the external diameter of the body (1) is 0.5~1.2 millimeter.
4. hypotube as claimed in claim 1, it is characterised in that lining silk (2) uses cross section
For circular real core metal silk is made, and the material of the real core metal silk is 304 stainless steels.
5. hypotube as claimed in claim 4, it is characterised in that diameter is maximum on lining silk (2)
The 30%~50% of the external diameter of a diameter of described body (1) at place, on lining silk (2) at diameter minimum
A diameter of 0.009~0.011 millimeter.
6. hypotube as claimed in claim 1, it is characterised in that the length of lining silk (2) is
150~300 millimeters, and length of lining silk (2) in the hollow structure (101) is 4~5 millis
Rice.
7. hypotube as claimed in claim 1, it is characterised in that lining silk (2) is in described
Part in hollow structure (101) is consolidated by way of three are spot welded with the inwall of the hollow structure (101)
Fixed connection.
8. hypotube as claimed in claim 1, it is characterised in that the pitch of the helical structure is 0.1~2
Millimeter.
9. hypotube as claimed in claim 1, it is characterised in that the helical structure top external diameter is maximum
External diameter of the external diameter at place less than the body (1).
10. hypotube as claimed in claim 1, it is characterised in that the chondritic (201)
A diameter of 0.018~0.022 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884451.0A CN106823108B (en) | 2015-12-04 | 2015-12-04 | Hypotube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884451.0A CN106823108B (en) | 2015-12-04 | 2015-12-04 | Hypotube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106823108A true CN106823108A (en) | 2017-06-13 |
| CN106823108B CN106823108B (en) | 2023-06-06 |
Family
ID=59150487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510884451.0A Active CN106823108B (en) | 2015-12-04 | 2015-12-04 | Hypotube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106823108B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704802A (en) * | 2019-10-25 | 2021-04-27 | 河南驼人医疗器械集团有限公司 | Balloon dilatation catheter and preparation method thereof |
| CN114272141A (en) * | 2022-01-13 | 2022-04-05 | 北京大学深圳医院 | Double-cavity visible gastrointestinal tube and double-cavity injection device with same |
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|---|---|---|---|---|
| US20050267442A1 (en) * | 2004-05-27 | 2005-12-01 | Randolf Von Oepen | Catheter having main body portion with coil-defined guidewire passage |
| US20080171980A1 (en) * | 2007-01-16 | 2008-07-17 | Medtronic Vascular, Inc. | Proximal Shaft for Rapid Exchange Catheter |
| CN101422637A (en) * | 2007-10-05 | 2009-05-06 | 朝日印帝克股份有限公司 | A balloon catheter |
| CN201279337Y (en) * | 2008-05-15 | 2009-07-29 | 微创医疗器械(上海)有限公司 | Saccule expansion conduit |
| CN201320183Y (en) * | 2008-12-15 | 2009-10-07 | 深圳先进技术研究院 | Novel human endoscope catheter and system thereof |
| CN102510763A (en) * | 2010-01-14 | 2012-06-20 | 株式会社戈德曼 | Catheter assembly |
| CN103889496A (en) * | 2011-11-29 | 2014-06-25 | 日本来富恩株式会社 | Balloon catheter |
| CN205215913U (en) * | 2015-12-04 | 2016-05-11 | 易生科技(北京)有限公司 | Hypo pipe |
-
2015
- 2015-12-04 CN CN201510884451.0A patent/CN106823108B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050267442A1 (en) * | 2004-05-27 | 2005-12-01 | Randolf Von Oepen | Catheter having main body portion with coil-defined guidewire passage |
| US20080171980A1 (en) * | 2007-01-16 | 2008-07-17 | Medtronic Vascular, Inc. | Proximal Shaft for Rapid Exchange Catheter |
| CN101422637A (en) * | 2007-10-05 | 2009-05-06 | 朝日印帝克股份有限公司 | A balloon catheter |
| CN201279337Y (en) * | 2008-05-15 | 2009-07-29 | 微创医疗器械(上海)有限公司 | Saccule expansion conduit |
| CN201320183Y (en) * | 2008-12-15 | 2009-10-07 | 深圳先进技术研究院 | Novel human endoscope catheter and system thereof |
| CN102510763A (en) * | 2010-01-14 | 2012-06-20 | 株式会社戈德曼 | Catheter assembly |
| CN103889496A (en) * | 2011-11-29 | 2014-06-25 | 日本来富恩株式会社 | Balloon catheter |
| CN205215913U (en) * | 2015-12-04 | 2016-05-11 | 易生科技(北京)有限公司 | Hypo pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704802A (en) * | 2019-10-25 | 2021-04-27 | 河南驼人医疗器械集团有限公司 | Balloon dilatation catheter and preparation method thereof |
| CN114272141A (en) * | 2022-01-13 | 2022-04-05 | 北京大学深圳医院 | Double-cavity visible gastrointestinal tube and double-cavity injection device with same |
| CN114272141B (en) * | 2022-01-13 | 2023-09-15 | 北京大学深圳医院 | Double-cavity visual gastrointestinal tube and double-cavity injection device with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106823108B (en) | 2023-06-06 |
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