CN202069995U - Unidirectional periosteal flap side-hole guide catheter - Google Patents
Unidirectional periosteal flap side-hole guide catheter Download PDFInfo
- Publication number
- CN202069995U CN202069995U CN2011201164833U CN201120116483U CN202069995U CN 202069995 U CN202069995 U CN 202069995U CN 2011201164833 U CN2011201164833 U CN 2011201164833U CN 201120116483 U CN201120116483 U CN 201120116483U CN 202069995 U CN202069995 U CN 202069995U
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- guide catheter
- unidirectional
- hole
- side opening
- guiding catheter
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a unidirectional periosteal flap side-hole guide catheter which can effectively relieve the problem that the coronary flow is blocked owning to the insertion of the guide catheter, and can also avoid the defects that owning to the existence of the side hole, a large amount of contrast agents are lost, the image quality is influenced and the dosage of the contrast agents and the related side effects are increased. The structure of the unidirectional perioseal flap side-hole guide catheter comprises a guide catheter body and is characterized in that at least one side hole is arranged in the pipe wall of a straight pipe body between a first bent pipe body and a second bent pipe body of the guide catheter body; and the internal wall corresponding to the position of the side hole is provided with a unidirectional perioseal flap. For the unidirectional periosteal flap side-hole guide catheter, the structure is simple, and the side hole is changed into the unidirectional periosteal flap; owning to the function of the unidirectional periosteal flap, the liquid can only flow from outside to inside of the pipe; the liquid in the pipe can not flow out through the side hole, so that the problem that the coronary flow is blocked owning to the insertion of the guide catheter can be relieved and the image quality is not influenced during the angiography; and the unidirectional periosteal flap side-hole guide catheter is particularly applicable to ostial lesion or deep insertion of catheters of more than 7F, vascular opening spasm and the like.
Description
Technical field
This utility model relates to medical apparatus and instruments, particularly a kind of one-way membrane lobe 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 (Guiding Catheter) is the basic transmission track of interventional therapy, it is undertaking conveying, application, injection of contrast medium and various associated treatment, the salvage drug of (seal wire, sacculus, support etc.) of supporting various intervention apparatus and the effect that hemodynamics is monitored constantly, is one of vital determiner that can the arteria coronaria interventional therapy success.
Common guiding catheter front end does not have side opening, if the arteria coronaria near-end is thinner, the above guiding catheter of 7F is easy to the incarceration openings in blood vessels, the blocking-up coronary blood flow, though but the band side opening guiding catheter that uses at present can keep better pressure, alleviate guiding catheter insert due to the coronary blood flow situation of being obstructed influence picture quality because the existence of side opening makes a large amount of contrast agent run off, increase contrast agent consumption and relevant side effect, limited its application.
The utility model content
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 one-way membrane lobe side opening guiding catheter, can effectively alleviate because the problem that coronary blood flow is obstructed due to the guiding catheter insertion, 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 the guiding catheter body, it is characterized in that, have a side opening at least on the tube wall of first bent tubular body of guiding catheter body and the straight tube body (supporting section) between second bent tubular body, the one-way membrane lobe is arranged on the inwall of side opening correspondence position.
This utility model is simple in structure, be to make side opening into individual event film lobe, because the effect of individual event film lobe, liquid can only be by in the outer inflow pipe of pipe, 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, particularly for trunk opening pathological changes or 7F with particularly suitable under the incarceration situation that upper conduit is inserted deeply, the openings in blood vessels spasm is easy to.
Description of drawings
Fig. 1 is a vertical section of the present utility model front view.
Fig. 2 is a side opening of the present utility model position partial enlarged view.
Fig. 3 is a side opening of the present utility model place cross-sectional view strength.
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 the guiding catheter body, has a side opening 2 at least on first bent tubular body 5 of guiding catheter body 1 and the tube wall of the straight tube body (supporting section) 4 between second bent tubular body 6, and one-way membrane lobe 3 is arranged on the inwall of side opening correspondence position.
In order to guarantee result of use, the straight tube axon between described side opening 2 ovalizes, its long face and first bent tubular body and second bent tubular body is to consistent; Described one-way membrane lobe 3 is to make by high performance nylon polyether elastomer (Pebax33) or by polymeric materials such as modification Nylon, the length of individual event film lobe and width are greater than the length and the width of side opening, and individual event film lobe tension two ends heat is melted or is adhesively fixed on the inwall of guiding catheter.
One-way membrane lobe of the present utility model has played the effect of an one-way cock, because the effect of individual event film lobe, liquid can only be by in the outer inflow pipe of pipe, 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, particularly for trunk opening pathological changes or 7F with particularly suitable under the incarceration situation that upper conduit is inserted deeply, the openings in blood vessels spasm is easy to.
Claims (3)
1. one-way membrane lobe side opening guiding catheter, comprise the guiding catheter body, it is characterized in that, have a side opening (2) at least on first bent tubular body (5) of guiding catheter body (1) and the tube wall of the straight tube body (4) between second bent tubular body (6), one-way membrane lobe (3) is arranged on the inwall of side opening correspondence position.
2. one-way membrane lobe side opening guiding catheter according to claim 1 is characterized in that, the straight tube axon between described side opening (2) ovalize, its long face and first bent tubular body (5) and second bent tubular body (6) is to consistent.
3. one-way membrane lobe side opening guiding catheter according to claim 1 is characterized in that, the length of described individual event film lobe and width are greater than the length and the width of side opening, and individual event film lobe tension two ends heat is melted or is adhesively fixed on the inwall of guiding catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201164833U CN202069995U (en) | 2011-04-20 | 2011-04-20 | Unidirectional periosteal flap side-hole guide catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201164833U CN202069995U (en) | 2011-04-20 | 2011-04-20 | Unidirectional periosteal flap side-hole guide catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202069995U true CN202069995U (en) | 2011-12-14 |
Family
ID=45108112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201164833U Expired - Fee Related CN202069995U (en) | 2011-04-20 | 2011-04-20 | Unidirectional periosteal flap side-hole guide catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202069995U (en) |
Cited By (2)
| 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 |
| CN104971420A (en) * | 2015-06-26 | 2015-10-14 | 中国人民解放军总医院 | Heart in situ perfusion catheter |
-
2011
- 2011-04-20 CN CN2011201164833U patent/CN202069995U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN104971420A (en) * | 2015-06-26 | 2015-10-14 | 中国人民解放军总医院 | Heart in situ perfusion catheter |
| CN104971420B (en) * | 2015-06-26 | 2018-03-16 | 中国人民解放军总医院 | A kind of heart situ perfusion conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20120420 |