CN2508778Y - Improved coronary saccule dilating catheter - Google Patents
Improved coronary saccule dilating catheter Download PDFInfo
- Publication number
- CN2508778Y CN2508778Y CN 01256020 CN01256020U CN2508778Y CN 2508778 Y CN2508778 Y CN 2508778Y CN 01256020 CN01256020 CN 01256020 CN 01256020 U CN01256020 U CN 01256020U CN 2508778 Y CN2508778 Y CN 2508778Y
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- Prior art keywords
- catheter
- sacculus
- tube
- saccule
- pipe
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Abstract
The utility model provides an improved coronary artery saccule dilating catheter, which belongs to the medical apparatus, in particular to a saccule dilating catheter that is used for the percutaneous puncture coronary artery forming technology of the interventional therapy technology. The utility model comprises an internal catheter and a saccule, an external catheter, a dilating stress catheter and a catheter seat that is connected with the stress catheter, wherein, the top end of the internal catheter passes through the saccule and extends out of the saccule; a cavity of the internal catheter is provided with developing points. Moreover, the utility model is characterized in that the external catheter consists of a single-cavity near end catheter and a double-cavity far end catheter; wherein, the joint of the far end catheter and the near end catheter is provided with a guide steel wire port; besides, the catheter seat forms a channel with the dilating stress catheter, the near end catheter, the external cavity of the far end catheter and the external cavity of the saccule. The utility model can replace the saccule dilating catheter by only one operator, without pulling out the guide steel wire while changing the saccule, thereby the utility model shortens the time for changing the saccule catheter and the radiation time under the X rays for patients.
Description
Technical field:
This utility model relates to a kind of modified model coronary artery sacculus dilating catheter, and it belongs to a kind of medical apparatus and instruments, particularly a kind of sacculus dilating catheter that is used for the percutaneous transluminal coronary angioplasty of interventional therapeutic technique.
Background technology:
Interventional technique grew up in the later stage seventies, it is under medical imaging (X line, ultrasonic, CT, MRI) guiding, by the percutaneous puncture approach or by the original duct of human body, special conduit or apparatus are inserted to diseased region diagnose radiography and treatment or gather tissue, carry out cytology, bacteriology and biochemical analysis.Percutaneous transluminal coronary angioplasty is to adopt the percutaneous puncture technology that sacculus dilating catheter is inserted into stenosis coronarius, and under the guiding and monitoring of medical imaging device, sacculus is expanded expansion, make the coronary stricture position or put up a bridge the expansion of transplanting narrow positions, increase myocardial flow, improve heart muscle perfusion.Present employed sacculus dilating catheter is owing to the cause of structure, and the propelling movement of conduit is not good.Particularly in the exchange sacculus, guiding steel wire at first must be released, operation is relatively complicated, and needs many people's cooperations just can finish.And the exchange sacculus is an important process in the operation, often needs to change for several times sacculus in an operation process, has therefore increased the time of operation greatly, has also caused waste of manpower resource.
Technology contents:
The purpose of this utility model is to improve the mechanism of convergent divergent channel, and the program that makes operation change sacculus is oversimplified, and need not extract guide wire out when changing sacculus, shortens the foley's tube time of changing.
The purpose of this utility model is achieved in that
A kind of modified model coronary artery sacculus dilating catheter, it comprises pipe, a sacculus in one, an outer tube, an expansion stresses pipe and a catheter block that is connected on the stress tube, sacculus is passed on the top of interior pipe, and stretches out from sacculus; The other end of sacculus connects with outer tube; Be provided with the development point at the described pipe cavity that is arranged in the sacculus position, it is characterized in that described outer tube is made up of proximal tube and distal tube; Described proximal tube is a single lumen catheter, and the one end is connected with the expansion stresses pipe; Described distal tube is a double lumen tube, and its inner chamber is connected with described interior pipe, and an end of its exocoel is communicated with sacculus, and the other end connects on the proximal tube; On the tube wall of the junction of described distal tube and proximal tube, be provided with a guide wire port; The exocoel of described catheter block and expansion stresses pipe, proximal tube, distal tube and the exocoel of sacculus constitute a passage.Development point in described being located in the pipe cavity is two.Described sacculus is half flexible nylon sacculus.The diameter of described sacculus is the 1.5--4.0 millimeter.The proximal tube that is described outer tube is a metal tube; Do support by the taper steel wire in the described distal tube, and link with proximal tube.
This utility model only needs a people to operate, and can arbitrarily exchange sacculus dilating catheter, and does not need to extract out when changing sacculus guide wire, thereby has shortened and changed foley's tube and the irradiation time of patient under the X line.In addition,, and link to each other, the whole piece conduit is pushed in blood vessel and the narrow positions of passing through smoothly more than 98% firmly and easily with the taper steel wire of far-end owing to proximal tube is made up of stainless steel tube; After expansion, can easily foley's tube be dropped back and guide wire maintenance original position simultaneously, therefore can judge the curative effect of coronary angioplasty preferably.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is the partial structurtes sketch map of sacculus of the present utility model, distal tube and interior pipe
The specific embodiment:
Be embodiment of the present utility model with accompanying drawing 1,2 below, this utility model be further detailed:
Shown in Figure 1, comprise and manage 3, one outer tubes of 4, sacculus, an expansion stresses pipe 8 and a catheter block 9 that is connected on the stress tube 8 that is connected on the outer tube in one that sacculus 3 is passed on the top 1 of interior pipe 4, and stretches out from sacculus 3; Sacculus 3 carries out heat bonding with the binding site on interior pipe 4 tops 1.Be provided with the point 2 that develops at the described pipe cavity 10 that is arranged in the pipe 4 at sacculus 3 positions; Described outer tube is made up of proximal tube 7 and distal tube 5; Described proximal tube 7 is a single lumen catheter, and the one end is connected with expansion stresses pipe 8; Described distal tube 5 is a double lumen tube, and its inner chamber 13 is connected with described interior pipe 4, and an end of its exocoel 12 is communicated with sacculus 3, and the other end connects on the proximal tube 7; Be provided with a guide wire port 6 in the junction of described distal tube 5 and proximal tube 7, described guide wire port 6 is bonding with the port of the inner chamber 13 of distal tube 5.The cavity 10 of pipe 4 and the inner chamber 13 of distal tube 5 communicate in making.Guide wire can enter the inner chamber 13 of distal tube 5 through described guide wire port 6, and manages 4 top 1 in interior pipe 4 goes directly.Such design can reduce the frictional force with conduit to greatest extent.Described catheter block 9 constitutes a passage with the inner chamber of expansion stresses pipe 8, proximal tube 7, the exocoel 12 of distal tube 5 and the exocoel 11 of sacculus 3.When needs pressurize for sacculus of the present utility model, the liquid that is used to pressurize can directly pass through catheter block 9, enters expansion stresses pipe 8, and the exocoel 12 of proximal tube 7 and distal tube 5 by single chamber, arrive the external cavity 11 of sacculus 3, thereby finish process of expansion to sacculus 3.Sacculus 3 adopts half flexible nylon material system, is blocking under warming with top 1 and distal tube 5, and the diameter of described sacculus (3) can be the 1.5--4.0 millimeter.The fracture pressure of sacculus 3 can surpass 20 atmospheric pressure like this.The metal material of proximal tube 7 can adopt stainless steel material to make, and can improve the connected mode with diffusion-induced stress pipe 8, increases aesthetic appearance of the present utility model, need not use reinforced wire simultaneously.In pipe 4 by the nylon material manufacturing, inner tubal wall has covered one deck polyethylene, can reduce the frictional force of inner tubal wall and guide wire.
Claims (5)
1, a kind of modified model coronary artery sacculus dilating catheter, it comprises pipe (4), a sacculus (3) in, an outer tube, an expansion stresses pipe (8) and a catheter block (9) that is connected on the stress tube (8), sacculus (3) is passed on the top (1) of interior pipe (4), and stretches out from sacculus (3); The other end of sacculus (3) connects with outer tube; Be provided with development point (2) at the described pipe cavity (10) that is arranged in the pipe (4) at sacculus (3) position, it is characterized in that described outer tube is made up of proximal tube (7) and distal tube (5); Described proximal tube (7) is a single lumen catheter, and the one end is connected with expansion stresses pipe (8); Described distal tube (5) is a double lumen tube, and its inner chamber (13) communicates with described interior pipe (4), and an end of its exocoel (12) is communicated with sacculus (3), and the other end connects on the proximal tube (7); On the tube wall of the junction of described distal tube (5) and proximal tube (7), be provided with a guide wire port (6); Described catheter block (9) constitutes a passage with the exocoel (11) of expansion stresses pipe (8), proximal tube (7), distal tube (5) exocoel (12) and sacculus (3).
2, the modified model coronary artery sacculus dilating catheter described in claim 1 is characterized in that the development point (2) in the pipe cavity (10) is two in described being located at.
3, the modified model coronary artery sacculus dilating catheter described in claim 1 is characterized in that described sacculus (3) is half flexible nylon sacculus.
4, the modified model coronary artery sacculus dilating catheter described in claim 3, the diameter that it is characterized in that described sacculus (3) is the 1.5--4.0 millimeter.
5, the modified model coronary artery sacculus dilating catheter described in claim 1 is characterized in that the proximal tube (7) of described outer tube is metal tube; Do support by the taper steel wire in the described distal tube (5), and link with proximal tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256020 CN2508778Y (en) | 2001-09-27 | 2001-09-27 | Improved coronary saccule dilating catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256020 CN2508778Y (en) | 2001-09-27 | 2001-09-27 | Improved coronary saccule dilating catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508778Y true CN2508778Y (en) | 2002-09-04 |
Family
ID=33665047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256020 Expired - Fee Related CN2508778Y (en) | 2001-09-27 | 2001-09-27 | Improved coronary saccule dilating catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508778Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930061A (en) * | 2011-04-25 | 2014-07-16 | 美敦力阿迪安卢森堡有限责任公司 | Apparatus and methods related to constrained deployment of cryogenic balloons for limited cryogenic ablation of vessel walls |
| CN105769279A (en) * | 2016-03-29 | 2016-07-20 | 中国人民解放军第二军医大学 | Buffer type blocking balloon |
| WO2021143681A1 (en) * | 2020-01-13 | 2021-07-22 | 珠海大横琴科技发展有限公司 | Cryoablation catheter |
| CN113244504A (en) * | 2021-05-12 | 2021-08-13 | 张智 | Non-permanent coronary artery internal supporting device in balloon dilatation interventional therapy process |
-
2001
- 2001-09-27 CN CN 01256020 patent/CN2508778Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930061A (en) * | 2011-04-25 | 2014-07-16 | 美敦力阿迪安卢森堡有限责任公司 | Apparatus and methods related to constrained deployment of cryogenic balloons for limited cryogenic ablation of vessel walls |
| CN103930061B (en) * | 2011-04-25 | 2016-09-14 | 美敦力阿迪安卢森堡有限责任公司 | Relevant low temperature sacculus for restricted conduit wall cryogenic ablation limits the device and method disposed |
| CN105769279A (en) * | 2016-03-29 | 2016-07-20 | 中国人民解放军第二军医大学 | Buffer type blocking balloon |
| WO2021143681A1 (en) * | 2020-01-13 | 2021-07-22 | 珠海大横琴科技发展有限公司 | Cryoablation catheter |
| CN113244504A (en) * | 2021-05-12 | 2021-08-13 | 张智 | Non-permanent coronary artery internal supporting device in balloon dilatation interventional therapy process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |