CN2176123Y - Radiofrequency cardiac catheter - Google Patents
Radiofrequency cardiac catheter Download PDFInfo
- Publication number
- CN2176123Y CN2176123Y CN93213964U CN93213964U CN2176123Y CN 2176123 Y CN2176123 Y CN 2176123Y CN 93213964 U CN93213964 U CN 93213964U CN 93213964 U CN93213964 U CN 93213964U CN 2176123 Y CN2176123 Y CN 2176123Y
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- CN
- China
- Prior art keywords
- radio
- frequency
- conduit
- slide bar
- cardiac catheter
- 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 a medical appliance. The purpose of the utility model is to effectively popularize the advanced medical technology by that a radio frequency catheter ablation catheter enters in an operation, the radio frequency catheter ablation catheter is totally made in China and is improved in structure, material and technology. The utility model is characterized in a groove on a slide bar and a slide bar spacer pin assembled on a grip handle are cooperated, the front part of an elastic catheter is provided with two parallel holes passing through a steel wire and a radio-frequency wire, the intermediate back part of the catheter is provided with one central through hole, and an electrode on the front end of the catheter is corresponding to the electrode of an electrical plug. The utility model has the advantages that the cost of the utility model is 1/3-1/4 of imported price, the hardness, rigidity and controllable flexibility of the utility model are enhanced, the degree of ablation is controlled by a temperature sensor, with operational success improved.
Description
This utility model relates to a kind of medical apparatus and instruments, refers to the radio-frequency (RF) ablation cardiac catheter especially.
In background technology, radio-frequency ablation procedure is to grow up the late nineteen eighties, be to be applied to clinical new Therapeutic Method, in the operation, conduit is inserted into heart inside from the patient vessel, behind electric physiology location, pass to the radio-frequency current of certain energy, the lasting regular hour reaches cell dehydration to melt the purpose of healing.Can successfully treat the intact speed that goes up of intractable with the method, give arrhythmia diseases such as swashing syndrome and invisible bypass.Breast is not opened in this operation, and not general anesthesia is dangerous little, recovers fast and the painless advantage of waiting bitterly for of patient.Present this surgical catheters is domestic produces as yet, the whole dependence on import of available conduit, and through hospital of a few family is on probation for many years, there is following problem in inlet ducts.
1, price is expensive, and the price of a conduit is 8000～1.1 ten thousand yuans.
2, owing to the influence of human body temperature, in summer, operation was used, the hardness and the rigidity of conduit were not enough.
3, in the operation, the controllable degree of crook of catheter head is less.
4, after conduit inserts heart, pass to radio-frequency current when melting, control degree of ablation by the control input power, and the degree that melts is determined by temperature and time.
Technical purpose of the present utility model is: change above-mentioned weak point of the prior art, and provide a kind of new catheter of domestic production, improve from structure and selection and manufacturing process, change into directly by input power control degree of ablation and to control degree of ablation by measurement and control of temperature, reduce cost significantly, form and produce in batches, solve domestic urgent need, and promote this advanced medical skill effectively.
Technical solution of the present utility model is:
Electrical multi-pole plug head 1 is assemblied in handle 2 one ends, assembling stretch bending fixation with steel wire pin 3 on the handle 2, stretch bending steel wire 6 other ends are by handle 2, slide bar 7 is fixed with conduit 10 Inner Front Ends, the assembling of conduit 10 front ends passes to the electrode 14 of radio-frequency current, assembling can have the slide bar 7 of sealing ring 5 in axial sliding in handle 2 seams, its special character is, to be 28～35 millimeters groove cooperate with slide bar spacer pin 4 on being assemblied in handle 2 L length on the slide bar 7, two parallel holes by stretch bending stainless steel silk 6 and enamel-covered wire 16 are arranged in 60～80 mm length scopes of elastic catheter 10 front portions, with fixed conduit 10 postmedians of slide bar 7 front ends be a central through hole, conduit 10 front end platinum electrodes 14 should with plug 1 electrode pair.
Technical solution of the present utility model also comprises: 2～4 enamel-covered wire 16 diameters that pass to radio-frequency current are 0.12～0.16 millimeter, and two ends link to each other with plug 1 with electrode 14 respectively.
2 compensating wire 17 diameters that pass to temperature sensing are 0.05～0.15 millimeter, and two ends link to each other with plug 1 with temperature sensor 15 respectively.
Has internal lining pipe 12 that better elasticity, hardness and inflexible conduit 10 made by nylon and politef, inner sleeve 13, braided steel wire net 11, polyurethane by plastic extruder extrusion molding successively.
The diameter of conduit 10 anterior two parallel holes is 0.6～0.8 millimeter.
The central through hole internal diameter of conduit 10 postmedians is 0.4～0.8 millimeter.
Fixing control crank 8 on the slide bar 7.
The description of drawings of this this utility model is as follows:
Fig. 1 is the overall structure sketch map of level Four electrode 14.
Fig. 2 be among Fig. 1 conduit 10 rear portion A to enlarged drawing.
Fig. 3 is secondary electrodes 14 and the overall structure sketch map that has temperature sensor 15.
Fig. 4 be among Fig. 3 conduit 10 anterior B to enlarged drawing.
Number in the figure is described as follows:
1-electrical multi-pole plug head, 2-handle, 3-stretch bending fixation with steel wire pin, 4-slide bar spacer pin, 5-sealing rubber ring, 6-steel wire, the 7-slide bar, 8-slide bar control crank, 9-sheath, the 10-conduit, 11-braided steel wire net, 12-internal lining pipe, the 13-inner sleeve, 14-platinum electrode, 15-temperature sensor, 16-radio frequency lead, the 17-compensating wire.
Be that this utility model adjoint is described in further detail below: referring to Fig. 1 and Fig. 2, the electrical multi-pole plug head 1 that can be divided into three kinds of 2,4,6 utmost points is assemblied in handle 2 one ends, assembling is with manually-operated slide bar 7 slidably in handle 2 other end seams, groove on the slide bar 7 cooperates with fixed spacer pin 4, the length L of groove=28～35 millimeter, this also is slide bar 7 axially movable length.Assembling control crank 8 and sheath 9 on slide bar 7 other ends, and fixing elastic catheter 10,1.1～1.35 meters long conduit 10 front ends have platinum electrode 14 or platinum electrode 14 are arranged and the temperature sensor 15(latter sees Fig. 3 and Fig. 4), there are two parallel holes conduit 10 front portions, one hole by 2～6 with the thread radio frequency lead 16 of enamel-cover, radio frequency lead 16 two ends are connective electrode 1 and platinum electrode 14 respectively, another hole is 0.20～0.28 millimeter a steel wire 6 by diameter, and steel wire 6 two ends are separately fixed at steady pin 3 and conduit 10 Inner Front Ends on the handle 2.Be equipped with sealing rubber ring 5 on the slide bar 7 in handle 2.The postmedian of conduit 10 is a through hole, sees Fig. 2, by radio frequency lead 16 and steel wire 6, perhaps by radio frequency lead 16, compensating wire 17 and steel wire 6, sees Fig. 3 and shown in Figure 4, and compensating wire 17 two ends connect temperature sensor 15 and electrode 1 respectively.Whole conduit 10 is by inner sleeve 13(d=0.5～0.7 millimeter, internal diameter is 0.3～0.4 millimeter), internal lining pipe 12(D=1.5～1.7 millimeter, internal diameter is 0.8～0.9 millimeter), braided steel wire net 11 and polyurethane is by plastic extruder extrusion molding successively, its material has certain rigidity, rigidity and elasticity.In operation, the doctor passes 28～35 millimeters forward with slide bar 7, can improve the controlled deflection degree, effect by steel wire 6, can control lead 10 front ends (60～80 millimeters) press the degree of crook of blood vessel, make conduit 10 progressively enter into heart, carry out radio-frequency ablation procedure.The difference of Fig. 1 and Fig. 3 is that conduit 10 front ends among Fig. 1 only have platinum electrode 14, pass through steel wire 6 and radio frequency lead 16 in the conduit 10.Conduit 10 front ends among Fig. 3 have platinum electrode 14 and temperature sensor 15, pass through steel wire 6, radio frequency lead 16 and compensating wire 17 in the conduit 10.
The utility model has the advantages that:
1, cost decrease, price are 1/3～1/4 of import price.
2, improve hardness and rigidity, be convenient to insert heart.
3, improve the controllable bending curvature, be convenient to insert heart.
4, can control degree of ablation by temperature sensor, be conducive to improve the success rate of operation.
5, base on our country, replace import.
Claims (7)
1, the radio-frequency (RF) ablation cardiac catheter, comprise that electrical multi-pole plug head (1) is assemblied in handle (2) one ends, handle (2) is gone up assembling stretch bending fixation with steel wire pin (3), stretch bending steel wire (6) other end is by handle (2), slide bar (7) is fixed with conduit (10) Inner Front End, the assembling of conduit (10) front end passes to the electrode (14) of radio-frequency current, assembling can have the slide bar (7) of sealing ring (5) in axial sliding in handle (2) seam, it is characterized in that: slide bar (7) is gone up L length, and to be 28～35 millimeters groove cooperate with slide bar spacer pin (4) on being assemblied in handle (2), two parallel holes by stretch bending stainless steel silk (6) and radio frequency lead (16) are arranged in anterior 60～80 mm length scopes of elastic catheter (10), with the fixed conduit of slide bar (7) front end (10) postmedian be a central through hole, conduit (10) front end platinum electrode (14) should connect with plug (1) electrode pair with radio frequency lead (16).
2, radio-frequency (RF) ablation cardiac catheter according to claim 1 is characterized in that: 2～4 radio frequency lead (16) diameters that pass to radio-frequency current are 0.12～0.16 millimeter, and two ends link to each other with plug (1) with electrode (14) respectively.
3, radio-frequency (RF) ablation cardiac catheter according to claim 1 is characterized in that: 2 compensating wire (17) diameters that pass to temperature sensing are 0.05～0.15 millimeter, and two ends link to each other with plug (1) with temperature sensor (15) respectively.
4, radio-frequency (RF) ablation cardiac catheter according to claim 1 is characterized in that: have internal lining pipe (12) that better elasticity, hardness and inflexible conduit (10) made by nylon and politef, inner sleeve (13), braided steel wire net (11), polyurethane by plastic extruder extrusion molding successively.
5, radio-frequency (RF) ablation cardiac catheter according to claim 1 is characterized in that: the diameter of anterior two parallel holes of conduit (10) is 0.6～0.8 millimeter.
6, radio-frequency (RF) ablation cardiac catheter according to claim 1 is characterized in that: the central through hole internal diameter of conduit (10) postmedian is 0.4～0.8 millimeter.
7, radio-frequency (RF) ablation cardiac catheter according to claim 1 is characterized in that: slide bar (7) is gone up fixedly control crank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93213964U CN2176123Y (en) | 1993-05-24 | 1993-05-24 | Radiofrequency cardiac catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93213964U CN2176123Y (en) | 1993-05-24 | 1993-05-24 | Radiofrequency cardiac catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2176123Y true CN2176123Y (en) | 1994-09-07 |
Family
ID=33794895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93213964U Expired - Fee Related CN2176123Y (en) | 1993-05-24 | 1993-05-24 | Radiofrequency cardiac catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2176123Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333698C (en) * | 2003-10-06 | 2007-08-29 | 奥林巴斯株式会社 | High-frequency knife and endoscopic apparatus |
| CN100428918C (en) * | 2002-09-04 | 2008-10-29 | 爱尔伯电子医疗设备公司 | Applicator for an electrosurgical instrument |
| CN102106752A (en) * | 2009-12-23 | 2011-06-29 | 韦伯斯特生物官能(以色列)有限公司 | Sensing contact of ablation catheter using differential temperature measurements |
| CN102438538A (en) * | 2009-05-21 | 2012-05-02 | 东丽株式会社 | Ablation catheter with balloon, and ablation catheter system with balloon |
| CN103800072A (en) * | 2012-11-09 | 2014-05-21 | 上海微创电生理医疗科技有限公司 | Terminal electrode and method for assembling terminal electrode and electrophysiology catheter |
| CN105193498A (en) * | 2015-09-18 | 2015-12-30 | 先健科技(深圳)有限公司 | Ablation catheter device |
| CN106037927A (en) * | 2016-05-16 | 2016-10-26 | 安隽医疗科技(南京)有限公司 | Electrode needle system of adjustable water injection ablation electrode needle |
-
1993
- 1993-05-24 CN CN93213964U patent/CN2176123Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428918C (en) * | 2002-09-04 | 2008-10-29 | 爱尔伯电子医疗设备公司 | Applicator for an electrosurgical instrument |
| CN100333698C (en) * | 2003-10-06 | 2007-08-29 | 奥林巴斯株式会社 | High-frequency knife and endoscopic apparatus |
| CN102438538A (en) * | 2009-05-21 | 2012-05-02 | 东丽株式会社 | Ablation catheter with balloon, and ablation catheter system with balloon |
| CN102106752A (en) * | 2009-12-23 | 2011-06-29 | 韦伯斯特生物官能(以色列)有限公司 | Sensing contact of ablation catheter using differential temperature measurements |
| CN102106752B (en) * | 2009-12-23 | 2015-05-20 | 韦伯斯特生物官能(以色列)有限公司 | Sensing contact of ablation catheter using differential temperature measurements |
| CN103800072A (en) * | 2012-11-09 | 2014-05-21 | 上海微创电生理医疗科技有限公司 | Terminal electrode and method for assembling terminal electrode and electrophysiology catheter |
| CN103800072B (en) * | 2012-11-09 | 2016-04-13 | 上海微创电生理医疗科技有限公司 | Termination electrode and the assembly method with electrophysiologicalcatheter catheter thereof |
| CN105193498A (en) * | 2015-09-18 | 2015-12-30 | 先健科技(深圳)有限公司 | Ablation catheter device |
| CN106037927A (en) * | 2016-05-16 | 2016-10-26 | 安隽医疗科技(南京)有限公司 | Electrode needle system of adjustable water injection ablation electrode needle |
| CN106037927B (en) * | 2016-05-16 | 2020-07-24 | 安隽医疗科技(南京)有限公司 | Electrode needle system of adjustable water injection ablation electrode needle |
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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 |