CN202437960U - Hollow balloon dilation catheter - Google Patents
Hollow balloon dilation catheter Download PDFInfo
- Publication number
- CN202437960U CN202437960U CN2012200470319U CN201220047031U CN202437960U CN 202437960 U CN202437960 U CN 202437960U CN 2012200470319 U CN2012200470319 U CN 2012200470319U CN 201220047031 U CN201220047031 U CN 201220047031U CN 202437960 U CN202437960 U CN 202437960U
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- hollow
- dilation
- balloon
- sacculus
- hollow balloon
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Abstract
The utility model relates to a hollow balloon dilation catheter. The hollow balloon dilation catheter is characterized by comprising a guide wire cavity and an outer sleeve which is coaxially sheathed on the guide wire cavity, a hollow balloon around the outer sleeve is arranged at the lower end of the outer sleeve, and the two ends of the hollow balloon are respectively communicated with a balloon communicating pipe and the outer sleeve. A space penetrating the front and the back can emerge at the middle of the balloon during the dilation of the hollow balloon and further prevent blocking blood flow or air flow of a cavity of the catheter. The hollow balloon dilation catheter disclosed by the utility model has the advantages that: (1) during the dilation of the hollow balloon, the blood flow or the air flow is not blocked, and the dynamic changes of the blood flow or the air flow are not great; (2) the incidence of thrombus in distant blood vessels can be reduced; (3) the continuous dilation time of the hollow balloon can be prolonged, and the dilation can be continuously performed for 10min-30min or longer time according to the situation of a disease, so that the treatment effect of the pure balloon dilation can be increased, and the effect can be particularly increased against the balloon catheter coated with a medicament; (4) as for a hollow balloon dilation type stent or a hollow balloon dilation type aortic valve, the incidence of displacement of the stent or the artificial valve is low, the safety is higher and the related complications are reduced; and (5) the manufacturing is easy and the operation is simple.
Description
Technical field
This utility model relates to medical apparatus and instruments, specifically is a kind of hollow sacculus dilating catheter that blood vessel is interior or air flue is interior that is applied to, and it presents the space before and after running through thereby does not block blood flow or the air-flow of being expanded pipeline in the middle of sacculus when expansion.
Background technology
Development along with interventional medicine; Various sacculus dilating catheters have been widely used in various intervene operations, as: compliant balloon, non-compliant balloon, cutting sacculus, low pressure sacculus, high pressure resistant sacculus, the anti-sacculus of fighting, freezing sacculus, coating sacculus, various balloon expandable stent, balloon expandable formula aortic valve prosthesis.
At present; When carrying out various balloon expandable plasty, all need temporary transient blocking blood flow fully; The blocking-up fully of blood flow can cause the hemodynamics great variety and bring following a series of problem: 1, for preventing that thrombosis from needing the whole body heparinization, this has increased risk of bleeding; 2, the blocking-up of blood flow causes the major defect of far-end organ, increases organ necrosis or increases the weight of ischemical reperfusion injury; 3, generally in minutes this greatly reduces the effect of balloon expandable operation, especially for the coating sacculus time of most balloon expandables; 4, the blocking-up fully of blood flow, blood flow impact force strengthens, and various balloon expandable stent and balloon expandable formula aortic valve prosthesis's displacement rate increases, and causes the operative failure rate to rise.
Summary of the invention
The purpose of this utility model is directed against existing problem in the above-mentioned prior art and custom-designed a kind of hollow sacculus dilating catheter just, the middle blood flow or the air-flow that can occur running through the space of front and back thereby not block tube chamber of sacculus during this hollow balloon expandable.
The purpose of this utility model realizes through following technical scheme: the hollow sacculus dilating catheter of this utility model; Comprise guidewire lumen and the coaxial package trocar sheath composition on guidewire lumen; The sleeve pipe lower end is provided with a hollow sacculus around trocar sheath outside, and hollow sacculus two ends are respectively through being communicated with trocar sheath sacculus communicating pipe.Trocar sheath is not expansible, and it act as passage from the dilating sacculus contrast agent to sacculus communicating pipe that carry.
In this utility model, hollow sacculus two ends were communicated with trocar sheath two ball capsule communicating pipes through what be symmetrically distributed respectively; Hollow sacculus two ends also can be respectively through equally distributed three or be communicated with four ball capsule communicating pipes with trocar sheath.Not only play a part sacculus communicating pipe to carry the dilating sacculus contrast agent to sacculus, and its fixedly effect of sacculus; Sacculus communicating pipe, barotolerance was far above sacculus.
Sacculus is surrounded by adventitia and inner membrance and forms, and its two ends communicated with sacculus communicating pipe; When sacculus was positioned at expansion state, the inner membrance wrapping portion was the hollow space through blood flow and air-flow, and sacculus section diameter and its hollow space ratio are according to circumstances decided; Balloon diameter and length are decided according to purposes; Diameter 15mm-30mm sacculus can be used for caval vein or aorta; Diameter 5mm-10mm sacculus can be used for iliac artery, artery of lower extremity, renal artery, carotid artery etc., and diameter 2mm-4mm sacculus can be used for coronary artery, vertebral artery, entocranial artery, inferior genicular artery etc.;
The advantage of this utility model is: not blocking blood flow or air-flow during (1) this hollow balloon expandable, and blood flow or aerodynamics change little; (2) the distal vessels incidence of thrombus reduces; (3) this hollow sacculus continuous expansion time can prolong, according to disease condition continuous expansion 10 minutes--30 minutes or longer time, increase the therapeutic effect of simple balloon expandable, especially for coating sacculus better effects if; (4) this hollow balloon expandable stent or hollow sacculus expanding aortic valve, support or the artificial valve incidence rate that is shifted is low, and safety is higher, and related complication descends; (5) easy to manufacture, simple to operate.
Description of drawings
Fig. 1 is the structural representation (three ball capsules are during communicating pipe, during balloon expandable) of this utility model.
The cross-sectional view at the sacculus place of Fig. 2 this utility model (three ball capsules are during communicating pipe, during balloon expandable).
Fig. 3 is the cross-sectional view of locating the sacculus communicating pipe of this utility model (three ball capsules are during communicating pipe, during balloon expandable).
Among the figure: 1-guidewire lumen interface; 2-sacculus interface; The 3-trocar sheath; The 4-guidewire lumen; The 5-hollow space; The 6-sacculus; 7-sacculus communicating pipe.
The specific embodiment
This utility model further describes below in conjunction with accompanying drawing:
As shown in the figure: the hollow sacculus dilating catheter of this utility model; Comprise guidewire lumen 4 and trocar sheath 3 compositions of coaxial package on wire leading pipe; Sleeve pipe 3 lower ends are provided with a hollow sacculus 6 around trocar sheath outside, and hollow sacculus 6 two ends are communicated with trocar sheath 3 sacculus communicating pipe 7 through two (also can be three or four) respectively.
Present the hollow space 5 before and after running through during expansion in the middle of the sacculus 6, thereby do not block by the blood flow or the air-flow of expansion pipeline.
Guidewire lumen interface 1, sacculus interface 2 can connect ordinary syringe, compression pump, threeway etc.;
Guidewire lumen varies in size according to different balloon diameter can be through godet system such as 0.038,0.035,0.018,0.014.
Claims (4)
1. hollow sacculus dilating catheter; It is characterized in that: comprise guidewire lumen and the coaxial package trocar sheath composition on guidewire lumen; The sleeve pipe front end is provided with a hollow sacculus around trocar sheath outside, and hollow sacculus two ends are respectively through being communicated with trocar sheath sacculus communicating pipe.
2. hollow sacculus dilating catheter according to claim 1 is characterized in that: hollow sacculus two ends were communicated with trocar sheath two ball capsule communicating pipes through what be symmetrically distributed respectively.
3. hollow sacculus dilating catheter according to claim 1 is characterized in that: hollow sacculus two ends are respectively through being communicated with trocar sheath equally distributed three ball capsule communicating pipes.
4. hollow sacculus dilating catheter according to claim 1 is characterized in that: hollow sacculus two ends are respectively through being communicated with trocar sheath equally distributed four ball capsule communicating pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200470319U CN202437960U (en) | 2012-02-14 | 2012-02-14 | Hollow balloon dilation catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200470319U CN202437960U (en) | 2012-02-14 | 2012-02-14 | Hollow balloon dilation catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202437960U true CN202437960U (en) | 2012-09-19 |
Family
ID=46819417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200470319U Expired - Fee Related CN202437960U (en) | 2012-02-14 | 2012-02-14 | Hollow balloon dilation catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202437960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921095A (en) * | 2012-10-15 | 2013-02-13 | 王强 | Novel blood passible balloon for inflating valve or blood |
| CN104394808A (en) * | 2012-10-01 | 2015-03-04 | C·R·巴德公司 | Balloon catheter having multiple inflation lumens and related methods |
-
2012
- 2012-02-14 CN CN2012200470319U patent/CN202437960U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394808A (en) * | 2012-10-01 | 2015-03-04 | C·R·巴德公司 | Balloon catheter having multiple inflation lumens and related methods |
| CN104394808B (en) * | 2012-10-01 | 2018-07-31 | C·R·巴德公司 | Foley's tube with multiple filling inner cavities |
| CN108992204A (en) * | 2012-10-01 | 2018-12-14 | C·R·巴德公司 | Foley's tube and correlation technique with multiple filling inner cavities |
| CN108992204B (en) * | 2012-10-01 | 2021-11-23 | C·R·巴德公司 | Balloon catheter with multiple inflation lumens and related methods |
| CN102921095A (en) * | 2012-10-15 | 2013-02-13 | 王强 | Novel blood passible balloon for inflating valve or blood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20160214 |