CN103920227A - Bendable multifunctional coronary artery guiding catheter - Google Patents
Bendable multifunctional coronary artery guiding catheter Download PDFInfo
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- CN103920227A CN103920227A CN201410162071.1A CN201410162071A CN103920227A CN 103920227 A CN103920227 A CN 103920227A CN 201410162071 A CN201410162071 A CN 201410162071A CN 103920227 A CN103920227 A CN 103920227A
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- guiding catheter
- multiple tube
- tensile machine
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- guide pipe
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Abstract
Disclosed is a bendable multifunctional coronary artery guiding catheter. The bendable multifunctional coronary artery guiding catheter comprises a shell, a rubber sleeve, a composite tube, a right-handed and left-handed internal thread guide tube, a left-handed half-thread tension mechanism and a right-handed half-thread tension mechanism. The bendable multifunctional coronary artery guiding catheter with the novel structure can easily reach coronary artery ostia and be deeply inserted into coronary arteries by adjusting the direction of the guiding catheter, super-large active supporting force can be provided during treatment of complicated cases, left and right coronary artery arteriography and PCI can be completed through one guiding catheter, and repeated catheter replacement is not needed during an operation.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, the multi-functional arteria coronaria guiding catheter of especially a kind of adjustable bending.
Background technology
At present according to the selection of aortic arch feature, coronary opening position and direction, holding power, can select different arteria coronaria guiding catheters, but these conduits are all placed in conduit coronary opening or near-end.However, run into still pathological changes smoothly of the tortuous or serious intravascular stent of calcification or sacculus, or traditional guiding catheter cannot provide enough support forces.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, easy to operate, by regulating guiding catheter direction, reach the dark multi-functional arteria coronaria guiding catheter of adjustable bending of inserting arteria coronaria.
For solving the problems of the technologies described above, the invention provides the multi-functional arteria coronaria guiding catheter of a kind of adjustable bending, comprise housing, rubber sleeve, multiple tube, positive and negative female thread guide pipe, left-handed half-thread tensile machine and dextrorotation half-thread tensile machine, described multiple tube is followed successively by plastic layer, meshy steel wire layer and nylon layer from outside to inside, the front end of described multiple tube is provided with annular steel disc, is provided with steel wire bar between meshy steel wire layer and nylon layer;
The front end of described positive and negative female thread guide pipe is fixed in rubber sleeve, rotating being arranged in housing in rear end of positive and negative female thread guide pipe, the rear end of described multiple tube is stretched in positive and negative female thread guide pipe, the front end of described left-handed half-thread tensile machine and dextrorotation half-thread tensile machine and positive and negative female thread guide pipe mesh and are arranged between positive and negative female thread guide pipe and multiple tube, in the process of positive and negative female thread guide pipe rotation, drive left-handed half-thread tensile machine and dextrorotation half-thread tensile machine to move forward and backward in housing;
Described steel wire bar is two, and symmetrical is arranged in multiple tube, and one end of steel wire bar is connected with annular steel disc, and the other end is connected with dextrorotation half-thread tensile machine respectively at left-handed half-thread tensile machine.
The present invention improves to be had, and the nylon layer of multiple tube is nylon politef.
The present invention improves to be had, and described plastic layer is vinyon.
The present invention improves to be had, and the front end of described steel wire bar is welded on annular steel disc.
The present invention improves to be had, and the front end of rubber sleeve is provided with opening, and the rotating turning sleeve that arranges in the opening of rubber sleeve, is provided with the screens coordinating with turning sleeve on multiple tube.
The present invention improves to be had, and described multiple tube head is provided with 5-8cm soft.
The present invention improves to be had, multiple tube model has 4F, 5 F, 6 F, 7 F, 8 F, various official jargon external diameter is respectively 1.43mm, 1.65 mm, 2.0 mm, 2.3 mm, 2.7 mm, and internal diameter is respectively 1.27 mm, 1.4 mm, 1.75 mm, 2. 0 mm, 2. 2 mm.
The invention has the beneficial effects as follows: the multi-functional coronary artery guiding catheter of adjustable bending of new structure, by regulating guiding catheter direction, can easily arrive coronary ostium, reach the dark coronary artery object of inserting, for completing complicated case, provide superpower Active support power, existing 1 guiding catheter completes left and right coronarography and PCI art, in art without repeatedly changing conduit.
Accompanying drawing explanation
Accompanying drawing 1 is the multi-functional arteria coronaria guiding catheter of adjustable bending of the present invention using state Fig. 1;
Accompanying drawing 2 is the multi-functional arteria coronaria guiding catheter of adjustable bending of the present invention using state Fig. 2;
Accompanying drawing 3 is the multi-functional arteria coronaria guiding catheter of adjustable bending of the present invention using state Fig. 3;
Accompanying drawing 4 is the cutaway view of the multiple tube of the multi-functional arteria coronaria guiding catheter of adjustable bending of the present invention.
Label declaration: 1-housing; 2-rubber sleeve; 3-multiple tube; 31-plastic layer; 32-meshy steel wire layer; 33-nylon layer; The positive and negative female thread guide pipe of 4-; The left-handed half-thread tensile machine of 5-; 6-dextrorotation half-thread tensile machine; 7-annular steel disc; 8-steel wire bar.
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
With reference to accompanying drawing 1, shown in accompanying drawing, the invention provides the multi-functional arteria coronaria guiding catheter of a kind of adjustable bending, comprise housing 1, rubber sleeve 2, multiple tube 3, positive and negative female thread guide pipe 4, left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6, described multiple tube 3 is followed successively by plastic layer 31, meshy steel wire layer 32 and nylon layer 33 from outside to inside, the front end of described multiple tube 3 is provided with annular steel disc 7, between meshy steel wire layer 32 and nylon layer 33, is provided with steel wire bar 8;
The front end of described positive and negative female thread guide pipe 4 is fixed in rubber sleeve 2, rotating being arranged in housing 1 in rear end of positive and negative female thread guide pipe 4, the rear end of described multiple tube 3 is stretched in positive and negative female thread guide pipe 4, the front end of described left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6 and positive and negative female thread guide pipe 4 mesh and are arranged between positive and negative female thread guide pipe 4 and multiple tube 3, in the process of positive and negative female thread guide pipe 4 rotations, drive left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6 to move forward and backward in housing 1;
Described steel wire bar 8 is two, and symmetrical is arranged in multiple tube 3, and one end of steel wire bar 8 is connected with annular steel disc 7, and the other end is connected with dextrorotation half-thread tensile machine 6 respectively at left-handed half-thread tensile machine 5.
Concrete, we take the multi-functional arteria coronaria guiding catheter of adjustable bending that multiple tube 3 overall lengths are 1000mm is example, left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6 are also symmetrical being arranged in housing 1, when positive and negative female thread guide pipe 4 rotates, it rotates counterclockwise and clockwise rotates the movement that can drive respectively left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6, multiple tube 3 does not move in these rotational action, being fitted on positive and negative female thread guide pipe 4 of rubber sleeve 2 precisions, therefore when rotating rubber sleeve 2, just driven the rotation of positive and negative female thread guide pipe 4, the front end of rubber sleeve 2 is provided with opening, multiple tube 3 stretches in rubber sleeve 2 and housing 1 by this opening, concrete, the rotating turning sleeve that arranges in the opening of rubber sleeve 2, on multiple tube 3, be provided with screens and block rubber sleeve 2, therefore when rubber sleeve 2 rotates, multiple tube 3 can and then not rotate, simultaneously by the engaging of screens, multiple tube 3 does not move forward and backward in housing 1 and rubber sleeve 2 more yet.
In the present embodiment, the front end of described steel wire bar 8 is welded on annular steel disc 7, the rear end of steel wire bar 8 is fixed in left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6, when left-handed half-thread tensile machine 5 and dextrorotation half-thread tensile machine 6 are positioned at same position, on steel wire rope, do not receive any pulling force, can not move, multiple tube 3 flexible pipe heads are a linear state.
When rotating counterclockwise positive and negative female thread guide pipe 4 rotation, by spiral, drive left-handed half-thread tensile machine 5 to move to left end, thereby drive is moved to left end with the steel wire bar 8 in left-handed semi-spiral tensile machine, this pulling force acts on multiple tube 3 flexible pipe lower head simultaneously, thereby forces flexible pipe to be bent downwardly.
When clockwise rotating positive and negative female thread guide pipe 4 rotation, by spiral, drive dextrorotation half-thread tensile machine 6 to move to left end, thereby drive is moved to left end with the steel wire bar 8 in dextrorotation semi-spiral tensile machine, this pulling force acts on multiple tube 3 flexible pipe above-head simultaneously, thereby forces flexible pipe to be bent upwards.
By different rotation directions and rotation dynamics, 2 steel wire bars 8 of regulation and control lax,, thereby reach the object (side 180 degree, opposite side 270 degree) that conduit head end bends to both sides, make guiding catheter front end 10cm, can be on two dimensional surface two-way bending; In conjunction with rotating multiple tube 3, can realize three-dimensional adjusting guiding catheter direction, thereby by arriving target lesion near-end.
In the present embodiment, the nylon layer 33 of multiple tube 3 is nylon politef, reduces seal wire, sacculus, support and conduit cavity frictional force, antithrombotic.
Meshy steel wire layer 32 is specially 12 braided steel wires, conduit is had anti-fracture, anti-twist, compliance and better elasticity.
In the present embodiment, described plastic layer 31 is vinyon, determine catheter shape, hardness, with tunica intima frictional force.
The multi-functional arteria coronaria guiding catheter of adjustable bending of new structure, by regulating guiding catheter direction, reach the dark arteria coronaria object of inserting, for completing complicated case, provide superpower Active support power, can easily arrive atypia position coronary opening, realize 1 guiding catheter and complete left and right coronary angiography and PCI art, in art without repeatedly changing conduit.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. the multi-functional arteria coronaria guiding catheter of adjustable bending, it is characterized in that, comprise housing, rubber sleeve, multiple tube, positive and negative female thread guide pipe, left-handed half-thread tensile machine and dextrorotation half-thread tensile machine, described multiple tube is followed successively by plastic layer, meshy steel wire layer and nylon layer from outside to inside, the front end of described multiple tube is provided with annular steel disc, is provided with steel wire bar between meshy steel wire layer and nylon layer;
The front end of described positive and negative female thread guide pipe is fixed in rubber sleeve, rotating being arranged in housing in rear end of positive and negative female thread guide pipe, the rear end of described multiple tube is stretched in positive and negative female thread guide pipe, the front end of described left-handed half-thread tensile machine and dextrorotation half-thread tensile machine and positive and negative female thread guide pipe mesh and are arranged between positive and negative female thread guide pipe and multiple tube, in the process of positive and negative female thread guide pipe rotation, drive left-handed half-thread tensile machine and dextrorotation half-thread tensile machine to move forward and backward in housing;
Described steel wire bar is two, and symmetrical is arranged in multiple tube, and one end of steel wire bar is connected with annular steel disc, and the other end is connected with dextrorotation half-thread tensile machine respectively at left-handed half-thread tensile machine.
2. the multi-functional arteria coronaria guiding catheter of adjustable bending according to claim 1, is characterized in that, the nylon layer of multiple tube is nylon politef.
3. the multi-functional arteria coronaria guiding catheter of adjustable bending according to claim 1, is characterized in that, described plastic layer is vinyon.
4. the multi-functional arteria coronaria guiding catheter of adjustable bending according to claim 1, is characterized in that, the front end of described steel wire bar is welded on annular steel disc.
5. the multi-functional arteria coronaria guiding catheter of adjustable bending according to claim 1, is characterized in that, the front end of rubber sleeve is provided with opening, and the rotating turning sleeve that arranges in the opening of rubber sleeve, is provided with the screens coordinating with turning sleeve on multiple tube.
6. the multi-functional arteria coronaria guiding catheter of adjustable bending according to claim 1, is characterized in that, described multiple tube head is provided with 5-8cm soft.
7. the multi-functional arteria coronaria guiding catheter of adjustable bending according to claim 1, it is characterized in that, described multiple tube model has 4F, 5 F, 6 F, 7 F, 8 F, various official jargon external diameter is respectively 1.43mm, 1.65 mm, 2.0 mm, 2.3 mm, 2.7 mm, and internal diameter is respectively 1.27 mm, 1.4 mm, 1.75 mm, 2. 0 mm, 2. 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162071.1A CN103920227A (en) | 2014-04-22 | 2014-04-22 | Bendable multifunctional coronary artery guiding catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162071.1A CN103920227A (en) | 2014-04-22 | 2014-04-22 | Bendable multifunctional coronary artery guiding catheter |
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| Publication Number | Publication Date |
|---|---|
| CN103920227A true CN103920227A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410162071.1A Pending CN103920227A (en) | 2014-04-22 | 2014-04-22 | Bendable multifunctional coronary artery guiding catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367885A (en) * | 2020-03-10 | 2021-09-10 | 成都普道尔生物科技有限公司 | Glaucoma drainage tube, material thereof and implantation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060135961A1 (en) * | 2004-12-17 | 2006-06-22 | Biocardia, Inc. | Steerable guide catheters and methods for their use |
| US20120089125A1 (en) * | 2010-10-08 | 2012-04-12 | Greatbatch Ltd. | Bi-Directional Catheter Steering Handle |
| US20120203169A1 (en) * | 2008-12-31 | 2012-08-09 | Tegg Troy T | Shaft and handle for a catheter with independently-deflectable segments |
| CN103635141A (en) * | 2011-05-13 | 2014-03-12 | 圣犹达医疗用品电生理部门有限公司 | Five degree of freedom ultrasound catheter and catheter control handle |
-
2014
- 2014-04-22 CN CN201410162071.1A patent/CN103920227A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060135961A1 (en) * | 2004-12-17 | 2006-06-22 | Biocardia, Inc. | Steerable guide catheters and methods for their use |
| US20120203169A1 (en) * | 2008-12-31 | 2012-08-09 | Tegg Troy T | Shaft and handle for a catheter with independently-deflectable segments |
| US20120089125A1 (en) * | 2010-10-08 | 2012-04-12 | Greatbatch Ltd. | Bi-Directional Catheter Steering Handle |
| CN103635141A (en) * | 2011-05-13 | 2014-03-12 | 圣犹达医疗用品电生理部门有限公司 | Five degree of freedom ultrasound catheter and catheter control handle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367885A (en) * | 2020-03-10 | 2021-09-10 | 成都普道尔生物科技有限公司 | Glaucoma drainage tube, material thereof and implantation device |
| CN113367885B (en) * | 2020-03-10 | 2022-07-29 | 成都米戈思医疗技术有限公司 | Glaucoma drainage tube, material thereof and implantation device |
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Application publication date: 20140716 |