CN201791230U - One-way movable flap side hole guide catheter - Google Patents

One-way movable flap side hole guide catheter Download PDF

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Publication number
CN201791230U
CN201791230U CN2010205265472U CN201020526547U CN201791230U CN 201791230 U CN201791230 U CN 201791230U CN 2010205265472 U CN2010205265472 U CN 2010205265472U CN 201020526547 U CN201020526547 U CN 201020526547U CN 201791230 U CN201791230 U CN 201791230U
Authority
CN
China
Prior art keywords
hole
guide catheter
opening
movable flap
way movable
Prior art date
Application number
CN2010205265472U
Other languages
Chinese (zh)
Inventor
卢长青
王娟
张娟娟
杨敏华
李军杰
Original Assignee
河南中医学院
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 河南中医学院 filed Critical 河南中医学院
Priority to CN2010205265472U priority Critical patent/CN201791230U/en
Application granted granted Critical
Publication of CN201791230U publication Critical patent/CN201791230U/en

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Abstract

The utility model relates to a one-way movable flap side hole guide catheter, which can not only effectively alleviate the coronary artery blood block caused by the insertion of the guide catheter, but also avoid the defects caused by the loss of large amount of contrast agent as the side hole exists, such as an effect on image quality, more required contrast agent and relevant side effects. Aiming to the technical problems, the utility model adopts the technical scheme that a guide catheter body and a side hole are comprised, the side hole is formed on the wall of the guide catheter, an one-way movable flap is inwardly arranged in a corresponding position in the side hole on the guide catheter wall, and the length of the one-way movable flap is greater than that of the side hole. The one-way movable flap side hole guide catheter has a simple structure; and the side hole is changed into the one-way movable flap, so that fluid can only flow from the outside into the catheter, and the fluid in the pipe can not flow out from the side hole due to the one-way movable flap, thereby not only alleviating the coronary artery blood block caused by the insertion of the guide catheter, but also avoiding the effect on the image quality during imaging. The guide catheter is particularly suitable for patients with bifurcational left main stenosis and catheter incarceration angiostomy.

Description

Unidirectional flap valve side opening guiding catheter

Technical field

This utility model relates to medical apparatus and instruments, is a kind of unidirectional flap valve side opening guiding catheter.

Background technology

Percutaneous coronary interventional procedure (PCI) is a kind of important means of clinical treatment coronary heart disease, guiding catheter is the transmission passage of arteria coronaria interventional therapy, for sacculus dilating catheter, guide wire or other medical apparatus and instruments import via conduit, the conventional common guiding catheter front end that uses does not have side opening, if the arteria coronaria near-end is thinner, guiding catheter is easy to the incarceration openings in blood vessels, the blocking-up coronary blood flow, and front end band side opening guiding catheter can keep better pressure, alleviate guiding catheter insert due to the coronary blood flow situation of being obstructed, be applicable to trunk opening pathological changes or conduit incarceration openings in blood vessels situation person is arranged, but the band side opening guiding catheter that uses influences picture quality because the existence of side opening makes a large amount of contrast agent run off at present, increase contrast agent consumption and relevant side effect, limited its application.

Summary of the invention

At above-mentioned situation, in order to overcome the defective of prior art, the purpose of this utility model is to provide a kind of unidirectional flap valve side opening guiding catheter, can effectively alleviate since guiding catheter insert due to the coronary blood flow problem of being obstructed, can avoid again influencing picture quality, increase the drawback that the contrast agent consumption reaches relevant side effect because the existence of side opening makes a large amount of contrast agent run off.

The technical scheme that its technical problem that solves this utility model adopts is: comprise guiding catheter body and side opening, it is characterized in that, have side opening at the guiding catheter tube wall, at tube wall side opening correspondence position unidirectional flap valve is inwardly arranged, the length of unidirectional flap valve is greater than the length of side opening.

This utility model is simple in structure, be to make side opening into the individual event flap valve, liquid can only be by in the outer inflow pipe of pipe, because the effect of individual event flap valve, liquid in the pipe can not flow out by side opening, reach both can alleviate guiding catheter insert due to the coronary blood flow situation of being obstructed, the purpose of picture quality when not influencing radiography again is for trunk opening pathological changes or there is conduit incarceration openings in blood vessels situation person particularly suitable.

Description of drawings

Fig. 1 is this utility model three-dimensional structure diagram.

Fig. 2 is this utility model cross-sectional view strength.

Fig. 3 is this utility model vertical section front view.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done detailed explanation.

By Fig. 1-shown in Figure 3, this utility model comprises guiding catheter body and side opening, it is characterized in that, has side opening 2 at guiding catheter tube wall 1, at tube wall side opening correspondence position unidirectional flap valve 3 is inwardly arranged, and the length of unidirectional flap valve is greater than the length of side opening.

In order to guarantee result of use, said unidirectional flap valve 3 is inside, and leading section 5 is 80 degree oblique sections, is the oblique sections of 45 degree with unidirectional flap valve 3 corresponding side opening leading sections 4.

Unidirectional flap valve 3 is curved, matches with guiding catheter tube wall shape.

This utility model length can be 700mm, guiding catheter body overall diameter is 3mm, interior diameter 2mm, having length apart from guiding catheter front end 100mm place is 3mm, width is the side opening 2 of 1.26mm, and unidirectional flap valve 3 is positioned at inwall side opening 2 belows, and width is 1.5mm, the side opening leading section cut sth. askew 45 the degree, unidirectional flap valve leading section cut sth. askew 80 the degree.

Unidirectional flap valve of the present utility model has played the effect of an one-way cock, liquid can only be by in the outer inflow pipe of pipe, because the effect of individual event flap valve, liquid in the pipe can not flow out by side opening, reach both can alleviate guiding catheter insert due to the coronary blood flow situation of being obstructed, the purpose of picture quality when not influencing radiography again is for trunk opening pathological changes or there is conduit incarceration openings in blood vessels situation person particularly suitable.

Claims (3)

1. a unidirectional flap valve side opening guiding catheter comprises guiding catheter body and side opening, it is characterized in that, has side opening (2) at guiding catheter tube wall (1), at tube wall side opening correspondence position unidirectional flap valve (3) is inwardly arranged, and the length of unidirectional flap valve is greater than the length of side opening.
2. unidirectional flap valve side opening guiding catheter according to claim 1 is characterized in that, said unidirectional flap valve (3) is inside, and leading section (5) is 80 degree oblique sections, is 45 oblique sections of spending with the corresponding side opening leading section of unidirectional flap valve (3) (4).
3. unidirectional flap valve side opening guiding catheter according to claim 1 is characterized in that said unidirectional flap valve (3) is curved.
CN2010205265472U 2010-09-13 2010-09-13 One-way movable flap side hole guide catheter CN201791230U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205265472U CN201791230U (en) 2010-09-13 2010-09-13 One-way movable flap side hole guide catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205265472U CN201791230U (en) 2010-09-13 2010-09-13 One-way movable flap side hole guide catheter

Publications (1)

Publication Number Publication Date
CN201791230U true CN201791230U (en) 2011-04-13

Family

ID=43846150

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205265472U CN201791230U (en) 2010-09-13 2010-09-13 One-way movable flap side hole guide catheter

Country Status (1)

Country Link
CN (1) CN201791230U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102166385A (en) * 2011-04-20 2011-08-31 河南中医学院 Guiding catheter with unidirectional periosteal flap side openings
CN105031801A (en) * 2015-07-13 2015-11-11 李天晓 Guiding catheter and catheter assembly for angiography and angiography method
CN108578872A (en) * 2018-03-14 2018-09-28 董鹏 Unlversal catheter
CN108969869A (en) * 2018-07-01 2018-12-11 刘征宇 A kind of internal flow controllable reduces the sacculus of ischemical reperfusion injury

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102166385A (en) * 2011-04-20 2011-08-31 河南中医学院 Guiding catheter with unidirectional periosteal flap side openings
CN105031801A (en) * 2015-07-13 2015-11-11 李天晓 Guiding catheter and catheter assembly for angiography and angiography method
CN108578872A (en) * 2018-03-14 2018-09-28 董鹏 Unlversal catheter
CN108969869A (en) * 2018-07-01 2018-12-11 刘征宇 A kind of internal flow controllable reduces the sacculus of ischemical reperfusion injury

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110413

Termination date: 20110913

C17 Cessation of patent right