CN202590130U - Guiding catheter - Google Patents
Guiding catheter Download PDFInfo
- Publication number
- CN202590130U CN202590130U CN 201220277352 CN201220277352U CN202590130U CN 202590130 U CN202590130 U CN 202590130U CN 201220277352 CN201220277352 CN 201220277352 CN 201220277352 U CN201220277352 U CN 201220277352U CN 202590130 U CN202590130 U CN 202590130U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- guiding catheter
- divergent channel
- convergent divergent
- external part
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the field of medical instruments, in particular to a guiding catheter. The guiding catheter comprises an expanding pipe and a sleeve pipe. The expanding pipe is arranged in the sleeve pipe and comprises an extending end extending out of the sleeve pipe, the outer diameter of the extending end is evenly reduced along the direction of the axis away from the sleeve pipe, and an inner cavity is arranged in the expanding pipe. The extending end of the expanding pipe is of a gradually-reduced structure and can move forwards stably and reduce collision between the sleeve pipe and a blood vessel, and unnecessary damage on a patient is reduced. The extending end of the expanding pipe is of a gradually-reduced structure and can reduce the damage on the head end of the sleeve pipe, and the expanding pipe is matched with a guide wire, so that the guiding catheter can move forwards stably, the collision between the sleeve pipe and the blood vessel is reduced, and the guiding catheter can pass through the blood vessel smoothly.
Description
Technical field
This utility model relates to medical instruments field, is specifically related to a kind of guiding catheter.
Background technology
In the prior art, guiding catheter is a thin wall casing, and sleeve pipe advances along the seal wire in it during operation; Casing inner diameter is greater than the seal wire external diameter, and seal wire is movable in sleeve pipe, and its weak point is; This guiding catheter in use because the space between seal wire and the sleeve pipe is too big, to move radially scope bigger telescopic for seal wire; Be obstructed easily when sleeve pipe is pushed ahead, the sleeve pipe head end is also impaired easily, and telescopic head also causes the damage of tunica intima easily simultaneously.
The utility model content
This utility model provides a kind of guiding catheter, can stablize the wiping that reduces between sleeve pipe and the blood vessel of advancing and bump.
To achieve these goals, this utility model is realized through following technical scheme:
A kind of guiding catheter comprises convergent divergent channel and sleeve pipe; Said convergent divergent channel is located in the said sleeve pipe, and said convergent divergent channel comprises and stretch out said telescopic external part that said external part is provided with inner chamber evenly reducing away from said telescopic direction top external diameter size along its axis in the said convergent divergent channel.
Preferably, the length of said external part is 0.5-5cm.
Preferably, said external part is away from a said telescopic end, and its wall thickness is 0.05-0.5mm.
Preferably, at the other end relative, be connected through mating component between said convergent divergent channel and the sleeve pipe with said external part.
Preferably, said mating component comprises the female thread that is arranged on the sleeve pipe and the external screw thread that is arranged on the convergent divergent channel and matches with female thread on the said sleeve pipe.
Preferably, said mating component is for pass the latch of the tube wall of telescopic tube wall and convergent divergent channel simultaneously.
Preferably, at the other end relative with said external part, the tube wall of said convergent divergent channel turns up with telescopic joint.
The guiding catheter that this utility model provides, the external part of the convergent divergent channel of guiding catheter is fine texture gradually, can stablize the wiping that reduces between sleeve pipe and the blood vessel of advancing and bump, thereby reduce the unnecessary injury to the patient.
In addition, the external part of the convergent divergent channel of guiding catheter is fine texture gradually, also can reduce the impaired of sleeve pipe head end, and through the cooperating of convergent divergent channel and seal wire, can stablize the wiping of advancing between minimizing sleeve pipe and the blood vessel and bump, and makes guiding catheter smoothly pass through blood vessel.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art; Below will discuss the accompanying drawing of required use in embodiment or the description of the Prior Art; Obviously, only be some embodiment of this utility model in the technical scheme that combines accompanying drawing to describe, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is the guiding catheter sketch map that the embodiment 1 according to this utility model cooperates with seal wire;
Fig. 2 is the guiding catheter schematic cross-section that the embodiment 1 according to this utility model cooperates with seal wire;
Fig. 3 is the guiding catheter radial section sketch map that the embodiment 2 according to this utility model cooperates with seal wire;
Fig. 4 is the guiding catheter schematic cross-section that the embodiment 3 according to this utility model cooperates with seal wire.
Accompanying drawing sign: 1-seal wire, 2-convergent divergent channel, 3-sleeve pipe, 4-external part, 5-latch, 61-female thread, 62-external screw thread.
The specific embodiment
Below will combine accompanying drawing that the technical scheme of each embodiment of this utility model is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of this utility model, rather than whole embodiment.Based on the embodiment described in this utility model, those of ordinary skills are resulting all other embodiment under the prerequisite that does not need creative work, all in the scope that this utility model is protected.
The guiding catheter that this utility model provides comprises convergent divergent channel and sleeve pipe; Said convergent divergent channel is located in the said sleeve pipe, and said convergent divergent channel comprises and stretch out said telescopic external part that said external part is provided with inner chamber evenly reducing away from said telescopic direction top external diameter size along its axis in the said convergent divergent channel.
This utility model provides guiding catheter; The external part of the convergent divergent channel of guiding catheter is fine texture gradually, can stablize the wiping that reduces between sleeve pipe and the blood vessel of advancing and bump, thereby reduce the impaired of sleeve pipe head end; Also reduce simultaneously unnecessary injury to the patient; Through the guiding of convergent divergent channel and seal wire, can stablize the wiping that reduces between sleeve pipe and the blood vessel of advancing and bump, make sleeve pipe smoothly pass through blood vessel.
In each embodiment of this utility model, preferably, the length of said external part is 0.5-5cm.
In each embodiment of this utility model, preferably, said external part is away from a said telescopic end, and its wall thickness is 0.05-0.5mm.
In each embodiment of this utility model, preferably,, be connected through mating component between said convergent divergent channel and the sleeve pipe at the other end relative with said external part.Realize that through mating component convergent divergent channel is fixedly connected with sleeve pipe.
In each embodiment of this utility model, preferably, said mating component be arranged on the sleeve pipe female thread be arranged on the convergent divergent channel with said sleeve pipe on the external screw thread that matches of female thread.
In each embodiment of this utility model, preferably, said mating component comprises the external screw thread that is arranged on the sleeve pipe and the female thread that is arranged on the convergent divergent channel and matches with external screw thread on the said sleeve pipe.The fixed form that is threaded is simpler, and more aspect operates.
In each embodiment of this utility model, preferably, said mating component is for pass the latch of the tube wall of telescopic tube wall and convergent divergent channel simultaneously.The latch fixed form is simpler, and more aspect operates.
In each embodiment of this utility model, preferably, at the other end relative with said external part, the tube wall of said convergent divergent channel turns up with telescopic joint.
Through a kind of guiding catheter that this utility model provides, convergent divergent channel well cooperates with seal wire, can reduce the motion by a relatively large margin that sleeve pipe produces around seal wire, and the damage of consequent sleeve pipe head end.
Through a kind of guiding catheter that this utility model provides, the wiping that can also reduce between sleeve pipe and the blood vessel is bumped, thereby reduces the unnecessary injury to the patient vessel, can also reduce the damage of sleeve pipe head end.
As illustrated in fig. 1 and 2, the guiding catheter of this utility model comprises sleeve pipe 3, is arranged on the convergent divergent channel 2 in the sleeve pipe 3, and the end that convergent divergent channel 2 is longer than sleeve pipe 3 is an external part 4; The inner chamber of convergent divergent channel 2 can pass through seal wire 1, and seal wire 1 stretches out convergent divergent channel 2 from external part 4, and the head of seal wire 1 is semicircle blunt nosed; The diameter of the inner chamber of convergent divergent channel 2 is 0.9mm, and the external diameter of standard guide wire 1 is 0.889mm, and convergent divergent channel 2 can be realized fine cooperation with seal wire 1; Thereby realize the accurate control to guiding catheter, external part 4 length of convergent divergent channel 2 are 15mm, and external part 4 is fine texture gradually; The cooperation of this gradually fine texture can reduce the damage to blood vessel, and then reduces the injury to the patient.Sleeve pipe is provided with female thread 61, on the convergent divergent channel with said sleeve pipe on the external screw thread 62 that matches of female thread 61, convergent divergent channel 2 adopts with sleeve pipe 3 and is threaded.
A kind of guiding catheter, its with specific embodiment 1 different be in: be provided with latch 5 between the convergent divergent channel 2 of the end of guiding catheter and the sleeve pipe 3, convergent divergent channel 2 adopts latches 5 to be connected with sleeve pipe 3, and is specifically as shown in Figure 3.
A kind of guiding catheter, its with specific embodiment 1 different be in: the convergent divergent channel 2 of the end of guiding catheter turns up and is connected with sleeve pipe 3, and is specifically as shown in Figure 4.
The various embodiment that this utility model provides can make up with any-mode as required each other, and the technical scheme that obtains through this combination is also in the scope of this utility model.
Obviously, under the situation of spirit that does not break away from this utility model and scope, those skilled in the art can carry out various changes and modification to this utility model.Like this, if these changes and the modification of this utility model belonged within the scope of this utility model claim and equivalent thereof, then this utility model also will comprise these changes and modification.
Claims (7)
1. a guiding catheter is characterized in that, comprises convergent divergent channel and sleeve pipe; Said convergent divergent channel is located in the said sleeve pipe, and said convergent divergent channel comprises and stretch out said telescopic external part that said external part is provided with inner chamber evenly reducing away from said telescopic direction top external diameter size along its axis in the said convergent divergent channel.
2. a kind of guiding catheter as claimed in claim 1 is characterized in that, the length of said external part is 0.5-5cm.
3. a kind of guiding catheter as claimed in claim 1 is characterized in that, said external part is away from a said telescopic end, and its wall thickness is 0.05-0.5mm.
4. a kind of guiding catheter as claimed in claim 1 is characterized in that, at the other end relative with said external part, is connected through mating component between said convergent divergent channel and the sleeve pipe.
5. a kind of guiding catheter as claimed in claim 4 is characterized in that, said mating component comprises the female thread that is arranged on the sleeve pipe and the external screw thread that is arranged on the convergent divergent channel and matches with female thread on the said sleeve pipe.
6. a kind of guiding catheter as claimed in claim 4 is characterized in that, said mating component is for pass the latch of the tube wall of telescopic tube wall and convergent divergent channel simultaneously.
7. a kind of guiding catheter as claimed in claim 1 is characterized in that, at the other end relative with said external part, the tube wall of said convergent divergent channel turns up with telescopic joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277352 CN202590130U (en) | 2012-06-12 | 2012-06-12 | Guiding catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277352 CN202590130U (en) | 2012-06-12 | 2012-06-12 | Guiding catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202590130U true CN202590130U (en) | 2012-12-12 |
Family
ID=47307712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220277352 Expired - Fee Related CN202590130U (en) | 2012-06-12 | 2012-06-12 | Guiding catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202590130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104510507A (en) * | 2013-09-27 | 2015-04-15 | 德普伊米特克有限责任公司 | Flexible cannula and obturator |
| CN109091744A (en) * | 2018-06-12 | 2018-12-28 | 温州医科大学附属第二医院温州医科大学附属育英儿童医院 | A kind of catheter dredging brush |
-
2012
- 2012-06-12 CN CN 201220277352 patent/CN202590130U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104510507A (en) * | 2013-09-27 | 2015-04-15 | 德普伊米特克有限责任公司 | Flexible cannula and obturator |
| CN104510507B (en) * | 2013-09-27 | 2020-05-15 | 德普伊米特克有限责任公司 | Flexible cannula and plug |
| CN109091744A (en) * | 2018-06-12 | 2018-12-28 | 温州医科大学附属第二医院温州医科大学附属育英儿童医院 | A kind of catheter dredging brush |
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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 |
Granted publication date: 20121212 Termination date: 20210612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |