CN102671279B - Guiding catheter - Google Patents
Guiding catheter Download PDFInfo
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- CN102671279B CN102671279B CN 201210174372 CN201210174372A CN102671279B CN 102671279 B CN102671279 B CN 102671279B CN 201210174372 CN201210174372 CN 201210174372 CN 201210174372 A CN201210174372 A CN 201210174372A CN 102671279 B CN102671279 B CN 102671279B
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Abstract
The invention discloses a guiding catheter. The guiding catheter comprises a handle and a catheter body which can be installed integrally, a handle inner cavity is formed inside the handle, and a handle connecting structure is formed at one end of the handle; a catheter inner cavity is formed inside the catheter, one end of the catheter is a puncturing end for puncture, the other end is an installing end, and two cavity openings are formed on a cavity wall between the puncturing end and the installing end. The guiding catheter has the advantages that a detachable structure is adopted, operability of the handle during the puncture is considered, effects of the size and the structure of the handle on guide during the guide are skillfully eliminated, difficulty of operations are greatly reduced, two-way guide is achieved, particularly for patients who have high thoraxes or obvious spine non-physiological curvatures and who need the two-way guide, probability of damage of shunts caused byrepeated guide during an operation is reduced, operational damage to the patients caused by increase of operational incisions due to the repeated guide is reduced, and operational time is shortened.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, be specifically related to a kind of guiding catheter that in neurosurgery hydrocephalus operative treatment, uses.
Background technology
Hydrocephalus is one of disease common in the neurosurgery, and now for this disease, general Therapeutic Method adopts v p shunt exactly.In this operation, guiding catheter is an important apparatus, present employed guiding catheter is integral type, its end that is used for gripping forms thicker cylindrical handle usually, can not pass hypodermic tunnel, an end that is used for puncture forms the shape of being convenient to puncture of point, has the ability of skin puncture.The problem that existing guiding catheter runs into is, because the existence of handle, when implementing operation, guiding catheter is only applicable to guide along the direction of puncture, the guiding of contrary puncture direction needs extra operation and instrument, that is to say, handle exists and to have hindered this section that guiding catheter forms handle and can not enter hypodermic tunnel, thereby makes this end of handle can not be as a conduit mouth of pipe that is equal to cutting tip.Now still there is not on the market a kind of guiding catheter that can effectively realize bidirectional guiding.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of guiding catheter that can on the both direction of suitable contrary puncture direction, all can realize guiding.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Guiding catheter, it is characterized in that, comprise: can be by handle and the conduit that consists of an integral body is installed, aforementioned handle inside is formed with the intracavity of handle that forms and consist of at its two ends perforation along its length direction, and an end of aforementioned handle is formed for consisting of the handle connecting structure that is fixedly connected with aforementioned conduit; Aforementioned catheter interior is formed with the conduit cavity that is connected for aforementioned intracavity of handle, one end of aforementioned conduit is for being used for the puncture termination of puncture, the other end is the installation termination that is formed with the conduit syndeton that cooperates with aforementioned handle connecting structure, in aforementioned puncture termination and install that the chamber wall near aforementioned puncture tip position is formed with an accent of aforementioned conduit cavity between the termination, become aforementioned conduit cavity at aforementioned installation end capitiform place another be used for the accent that is communicated with aforementioned intracavity of handle.
Aforesaid guiding catheter is characterized in that, aforementioned conduit is divided into: form aforementioned puncture termination the guide cone section, form aforementioned installation termination the guide rod section, be arranged on the changeover portion between aforementioned guide cone section and the guide rod section.
Aforesaid guiding catheter is characterized in that, aforementioned guide cone section is solid construction.
Aforesaid guiding catheter is characterized in that, the profile of aforementioned guide cone section is one section elongated frustum of a cone and the composition that joins take the less table top of the frustum of a cone as the spherical surface body in cross section.
Aforesaid guiding catheter, it is characterized in that, the accent that aforementioned conduit cavity is formed on the chamber wall is made of the breach of the intrusion conduit cavity that aforementioned changeover portion forms near aforementioned guide cone section place, is solid between aforementioned breach and the aforementioned guide cone section and forms an inclined-plane.
Aforesaid guiding catheter is characterized in that, aforementioned guide rod section is equal circles take first axle as axis of rotation perpendicular to the cross section of its length direction; Aforementioned intracavity of handle is the pore structure take first axle as axis.
Aforesaid guiding catheter is characterized in that, aforementioned first axle is 8 degree with acute angle angle in the angle that the axis of rotation of the frustum of a cone of aforementioned guide cone section becomes.
Aforesaid guiding catheter is characterized in that, aforementioned handle connecting structure is one section installing handle that is formed with external screw thread and is connected by aforementioned intracavity of handle; Aforementioned conduit syndeton is the one section chamber wall that forms female aforementioned conduit cavity in aforementioned installation end.
Aforesaid guiding catheter is characterized in that, the cross-sectional area of aforementioned conduit cavity is reduced to the puncture termination gradually by aforementioned installation termination.
Aforesaid guiding catheter is characterized in that, the outside of aforementioned handle is formed with the annular knurl decorative pattern.
Usefulness of the present invention is: the present invention adopts dismountable structure, the operability of handle when both having taken into account puncture, again ingenious eliminated when guiding grip size and structure on the impact of guiding, greatly reduce the difficulty of operation, and realized two-way guiding, especially higher for thorax or have a two-way guiding patient of the non-physiological camber needs of obvious spinal column, reduce in the art because repeatedly repeatedly guiding the probability that causes isocon to damage, reduce repeatedly guiding and increased the surgical injury that operative incision brings to the patient, also shortened operating time.
Description of drawings
Fig. 1 is the structural representation under a preferred embodiment of the present invention installment state;
Fig. 2 is the structural representation under the disassembled form embodiment illustrated in fig. 1.
The implication of Reference numeral among the figure:
1, handle, 2, conduit, 3, intracavity of handle, 4, handle connecting structure, 5, conduit cavity, 6, the puncture termination, 7, the termination is installed, 8a, accent, 8b, accent, 9, the conduit syndeton; A, guide rod section, B, changeover portion, C, guide cone section; A, first axle, the axis of rotation of b, the frustum of a cone.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done concrete introduction.
Shown in seeing figures.1.and.2, guiding catheter of the present invention mainly comprises: handle 1 and conduit 2 two parts, can connect into by installation as a whole between them, when they connect into as a whole the time, equally with existing guiding catheter can realize puncturing and the function of unidirectional guiding.As preferred version, the outside of handle 1 is formed with the annular knurl decorative pattern, to play anti-skidding effect through annular knurl.
The inside of handle 1 is formed with intracavity of handle 3, and intracavity of handle 3 forms and connected the two ends of handle 1 along the length direction of handle 1; Equally, conduit 2 inside have also formed conduit cavity 5, between puncture termination 6 and installation termination 7, be formed with an accent 8b of conduit cavity 5 near the chamber wall of puncture 6 positions, termination, another accent 8a that is communicated with intracavity of handle 3 of being used for of termination 7 forming position conduit cavities 5 is being installed, as a kind of preferred version, the accent 8b that conduit cavity 5 is formed on the chamber wall is made of the breach of the intrusion conduit cavity 5 that changeover portion B forms near guide cone section C place, between breach and the guide cone section C for solid and form an inclined-plane, this is owing to need to puncture in puncture termination 6, so the accent 8b near this end is arranged on the chamber wall (being the sidewall of chamber), and the inclined-plane can make the guide end pipe in the conduit cavity 5 facilitate the introduction of and draw, the accent 8a of another conduit cavity 5 just is formed on termination 7 is installed, and that is to say that the port that 7 places, termination are installed is accent 8a.
Consist of one when whole at handle 1 and conduit 2, intracavity of handle 3 and conduit cavity 5 consist of a chamber as a whole, and this chamber provides the space for guiding.
With reference to shown in Figure 2, handle 1 and conduit 2 can split, when handle 1 as independent when individual, it is formed with handle connecting structure 4 in order to install with conduit 2 at the one end; Equally, conduit 2 is in order to install with handle 1, and the one end is installed termination 7, and 7 places, termination are formed with conduit syndeton 9 in installation, and as a kind of preferred version, handle connecting structure 4 is one section installing handle that is formed with external screw thread and is connected by intracavity of handle 3; Conduit syndeton 9 is for installing the one section chamber wall that forms female conduit cavity 5 in 7 places, termination; Certainly aforementioned structure also can adopt opposite configuration, also in protection scope of the present invention.
Shown in seeing figures.1.and.2, the puncture termination 6 of conduit 2 is be used to puncturing, and with regard to conduit 2 generally speaking, conduit 2 is for puncture, transition, 1 three purposes of connecting handle, and it is divided into: form puncture termination 6 guide cone section C, form guide rod section A that termination 7 is installed, be arranged on the changeover portion B between guide cone section and the guide rod section A.Wherein, because guide rod section A and guide cone section are not the straight line design, so the changeover portion B of certain radian has played round and smooth transitional function.As preferably, the cross-sectional area of conduit cavity 5 reduces to puncture termination 6 gradually by termination 7 is installed, but this is not unique form of the present invention.Wherein, as a kind of preferred version, guide cone section C be for can strengthening the solid construction of structural strength, and the profile of guide cone section C is one section elongated frustum of a cone and the composition that joins take the less table top of the frustum of a cone as the spherical surface body in cross section.
As preferred version, guide rod section A is equal circles take first axle a as axis of rotation perpendicular to the cross section of its length direction; Intracavity of handle 3 is the pore structure take first axle a as axis, and first axle a and acute angle angle in the angle that the axis of rotation b of the frustum of a cone of guide cone section C becomes are 8 to spend.
Shown in seeing figures.1.and.2, when puncture, handle 1 and conduit 2 consist of an integral body, the gripping handle 1 of stopping, puncture, if need to carry out the guiding of suitable puncture direction, then without removal handle 1, if need to carry out two-way guiding then removal handle 1, because guide rod section A and the guide cone section C two ends of conduit 2 all can guide.
Above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (10)
1. guiding catheter, it is characterized in that, comprise: can be by handle and the conduit that consists of an integral body is installed, above-mentioned handle inside is formed with the intracavity of handle that forms and consist of at its two ends perforation along its length direction, and an end of above-mentioned handle is formed for consisting of the handle connecting structure that is fixedly connected with above-mentioned conduit; Above-mentioned catheter interior is formed with the conduit cavity that is connected for above-mentioned intracavity of handle, one end of above-mentioned conduit is for being used for the puncture termination of puncture, the other end is the installation termination with the conduit syndeton that cooperates with above-mentioned handle connecting structure, in above-mentioned puncture termination with install between the termination near the chamber wall of above-mentioned puncture tip position and be formed with an accent of above-mentioned conduit cavity, be formed with another accent of being communicated with above-mentioned intracavity of handle of being used for of above-mentioned conduit cavity at above-mentioned installation end head.
2. guiding catheter according to claim 1 is characterized in that, above-mentioned conduit is divided into: form above-mentioned puncture termination the guide cone section, form above-mentioned installation termination the guide rod section, be arranged on the changeover portion between above-mentioned guide cone section and the guide rod section.
3. guiding catheter according to claim 2 is characterized in that, above-mentioned guide cone section is solid construction.
4. guiding catheter according to claim 3 is characterized in that, the profile of above-mentioned guide cone section is one section elongated frustum of a cone and the composition that joins take the less table top of the frustum of a cone as the spherical surface body in cross section.
5. guiding catheter according to claim 4, it is characterized in that, the accent that above-mentioned conduit cavity is formed on the chamber wall is made of the breach of the intrusion conduit cavity that above-mentioned changeover portion forms near above-mentioned guide cone section place, is solid between above-mentioned breach and the above-mentioned guide cone section and forms an inclined-plane.
6. guiding catheter according to claim 5 is characterized in that, above-mentioned guide rod section is equal circles take first axle as axis of rotation perpendicular to the cross section of its length direction; Above-mentioned intracavity of handle is the pore structure take first axle as axis.
7. guiding catheter according to claim 6 is characterized in that, above-mentioned first axle is 8 degree with acute angle angle in the angle that the axis of rotation of the frustum of a cone of above-mentioned guide cone section becomes.
8. according to claim 1 to the described guiding catheter of 7 any one, it is characterized in that, above-mentioned handle connecting structure is one section installing handle that is formed with external screw thread and is connected by above-mentioned intracavity of handle; Above-mentioned conduit syndeton is the one section chamber wall that forms female above-mentioned conduit cavity in above-mentioned installation end.
9. guiding catheter according to claim 8 is characterized in that, the cross-sectional area of above-mentioned conduit cavity is reduced to the puncture termination gradually by above-mentioned installation termination.
10. guiding catheter according to claim 9 is characterized in that, the outside of above-mentioned handle is formed with the annular knurl decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210174372 CN102671279B (en) | 2012-05-31 | 2012-05-31 | Guiding catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210174372 CN102671279B (en) | 2012-05-31 | 2012-05-31 | Guiding catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102671279A CN102671279A (en) | 2012-09-19 |
| CN102671279B true CN102671279B (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210174372 Active CN102671279B (en) | 2012-05-31 | 2012-05-31 | Guiding catheter |
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| Country | Link |
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| CN (1) | CN102671279B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006173A (en) * | 2012-12-03 | 2013-04-03 | 河南科技大学 | Visible urethral sound for indwelling catheter |
| CN103302293B (en) * | 2013-05-24 | 2014-12-17 | 淮海工学院 | Spray deposition densifying device and application thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007095252A1 (en) * | 2006-02-15 | 2007-08-23 | Wilson-Cook Medical Inc. | Catheter aperture with attachable structure |
| DK2129424T3 (en) * | 2007-02-28 | 2015-09-07 | Coloplast As | The catheter with openings having rounded edges of a tubular body |
| CN102316923A (en) * | 2008-10-10 | 2012-01-11 | 奈科斯恩麦德系统有限公司 | Practice thrift stock's conduit system |
| GB2471517B (en) * | 2009-07-02 | 2011-09-21 | Cook William Europ | Implant deployment catheter |
| CN202699825U (en) * | 2012-05-31 | 2013-01-30 | 苏州希普生物科技有限公司 | Guiding catheter |
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2012
- 2012-05-31 CN CN 201210174372 patent/CN102671279B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102671279A (en) | 2012-09-19 |
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