CN202933012U - Radiofrequency ablation catheter of push-and-pull control head electrode - Google Patents
Radiofrequency ablation catheter of push-and-pull control head electrode Download PDFInfo
- Publication number
- CN202933012U CN202933012U CN 201220533193 CN201220533193U CN202933012U CN 202933012 U CN202933012 U CN 202933012U CN 201220533193 CN201220533193 CN 201220533193 CN 201220533193 U CN201220533193 U CN 201220533193U CN 202933012 U CN202933012 U CN 202933012U
- Authority
- CN
- China
- Prior art keywords
- main body
- slide unit
- catheter main
- handle
- 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 - Lifetime
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model provides a radiofrequency ablation catheter of a push-and-pull control head electrode, which comprises a handle, a catheter main body and a head electrode mounted at the front end of the catheter main body, wherein the handle is mounted at the rear end of the catheter main body; an electric connection element, as well as a stay wire, used for electrically connecting the head electrode to a radio-frequency current generating device is arranged in the handle and the catheter main body; the handle comprises a first sliding part and a second sliding part which are mutually sleeved, the second sliding part is positioned outside the first sliding part which is fixedly connected with the rear end of the catheter main body; the front end of the stray wire is fixedly connected with the front part of the catheter main body, and the rear end thereof is fixedly connected with the second sliding part; and the radiofrequency ablation catheter further comprises a thermocouple used for detecting temperature and connected with the head electrode; and a conducting wire used for transmitting electrical signals of the thermocouple is arranged in the catheter main body and the handle.
Description
Technical field
This utility model relates to electrosurgery, relates in particular to a kind of for arteriorenal sympathetic nerve is carried out denervated radio frequency ablation catheter.
Background technology
Intractable hypertension, namely use still unmanageable hypertension (sBP 〉=160mmHg) of medicine more than 3 kinds (all having used a diuretic), more common clinically, its paathogenic factor is numerous, pathogenesis is indefinite, medication effect is very poor, and diagnosis and treatment technology are still not mature enough, become one of great difficult problem of hypertension therapeutic.Due to the receptor of kidney as nervus centralis, under orthosympathetic effect, can secrete more feritin and activate the RAAS system, cause that renal blood flow descends, cause the storage of water sodium to be stayed, cause at last hypertension; Simultaneously, kidney spreads out of organ as nerve, and sympathetic excitement is communicated to brain conversely, causes bad general reaction.Therefore, intractable hypertension is used the renal denervation treatment.The article that was published on New England Journal of Medicine in 2009 as people such as Schlaich, shown through after the renal denervation treatment, the noradrenaline levels decline 50-75% that discharges in nephridial tissue, in blood plasma, the feritin level descends 50%, the renal blood flow amount increases by 57%, find that simultaneously this treatment has effect to the central nervous system, can significantly improve nervimuscular galvanic reflex.
The renal artery radiofrequency ablation art is a kind of by the electrode catheter intravascular is sent into specific part in renal artery, discharges radio-frequency current and causes renal artery sympathetic nerve local solidification downright bad, reaches denervated Interventional technology.The radio-frequency current damage range is little, can not cause body harm, so the renal artery radiofrequency ablation art has become a kind of orthosympathetic method of effective removal renal artery.Be that 200980157662.7 Chinese patent application has disclosed a kind of radio frequency ablation catheter as application number, comprise handle, catheter main body, tip electrode, tip electrode is installed on the front end of catheter main body, the rear end of catheter main body is installed on handle, is provided with in handle and catheter main body for tip electrode being electrically connected to the electrical connecting element of radio-frequency current generator; This Chinese patent application has adopted mounting deflection controller on handle, and the orientation of controlling catheter main body leading portion tip electrode by rotation and a series of actuating device of support.Come the shortcoming in the orientation of control head electrode to be by the mode that this patent application discloses: handle arrangement is complicated, and cost of manufacture is high; Operator's operating handle is not good enough.
Given this, this utility model provides a kind of new radio frequency ablation catheter.
The utility model content
Defects in view of prior art, technical problem to be solved in the utility model is to provide a kind of radio frequency ablation catheter of push-and-pull control head electrode, by holding handle and by simple push-and-pull, the orientation of control head electrode well, the carrying out of more convenient operation.
The radio frequency ablation catheter of the push-and-pull control head electrode that this utility model provides comprises handle, catheter main body, tip electrode, described tip electrode is installed on the front end of described catheter main body, the rear end of described catheter main body is installed on described handle, is provided with in described handle and catheter main body for tip electrode being electrically connected to the electrical connecting element of radio-frequency current generator; In addition, also be provided with bracing wire in described handle and catheter main body, described handle comprises the first slide unit and second slide unit of mutual socket, described the second slide unit is positioned at the outside of described the first slide unit, described the first slide unit is fixedly connected with the rear end of described catheter main body, the front end of described bracing wire is fixedly connected on the front portion of described catheter main body, and the rear end of described bracing wire is fixedly connected on described the second slide unit; Described radio frequency ablation catheter also comprises the thermocouple for detecting temperature, is connected with tip electrode, also is provided with in described catheter main body and handle for the wire that transmits the thermocouple signal of telecommunication.
User uses being operating as of radio frequency ablation catheter provided by the utility model: hold the second slide unit with four fingers except thumb, and with the relevant position of thumb against the first slide unit, so just can control easily the first slide unit with respect to the slip of the second slide unit; Because the rear end of bracing wire is fixedly connected on the second slide unit, the other end is fixedly connected on the front portion of catheter main body, when the first slide unit slides with respect to the second slide unit, the second slide unit just can produce by bracing wire the effect of power to the junction point of bracing wire front end and catheter main body, thereby the front portion that makes catheter main body produces deformation crooked or that stretch, the further orientation of control head electrode.
Preferably, described the first slide unit has for the jut against the second slide unit, described jut also can be used for thumb against.More preferably, described jut is prominent ring.
Preferably, described electrical connecting element comprises connecting line and adapter, and an end of described connecting line is electrically connected to described tip electrode, and the other end is electrically connected to described adapter; Described adapter is installed in described the second slide unit.
Preferably, the distance of the front end of described bracing wire and described tip electrode is 1-5mm.
Preferably, in described the second slide unit, bobbin winoler is installed, the rear end of described bracing wire is fixedly connected on described bobbin winoler.
Preferably, also be equipped be used to the guide finger of locating described bracing wire in described the first slide unit.
Preferably, the front end of described handle is provided with the cushion pad for the protection of described catheter main body rear end.
Radio frequency ablation catheter provided by the utility model, by the simple push-and-pull orientation of control head electrode well, operating handle is good; And simple in structure, cost of manufacture is low.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.
Description of drawings
Fig. 1 is the structural representation of a kind of preferred specific embodiment of radio frequency ablation catheter of the present utility model.
The specific embodiment
Fig. 1 shows a kind of preferred specific embodiment of radio frequency ablation catheter provided by the utility model.
As shown in Figure 1, radio frequency ablation catheter in this specific embodiment comprises handle 1, catheter main body 2, tip electrode (not shown), tip electrode is installed on the front end of catheter main body 2, the rear end of catheter main body 2 is installed on handle 1, is provided with in handle 1 and catheter main body 2 for tip electrode being electrically connected to the electrical connecting element of radio-frequency current generator.Electrical connecting element comprises connecting line 3 and adapter 4, and an end of connecting line 3 is electrically connected to tip electrode, and the other end is electrically connected to adapter 4; Adapter 4 is installed in handle 1, is used for tip electrode is connected to the radio-frequency current generator.
In this specific embodiment, handle 1 comprises the first slide unit 5 of mutual socket and the outside that the second slide unit 6, the second slide units 6 are positioned at the first slide unit 5, and the first slide unit 5 and the second slide unit 6 can slide mutually.The first slide unit 5 is fixedly connected with the rear end of catheter main body 2, and adapter 4 is installed in the second slide unit 6.The first slide unit 5 has prominent ring 7, be used for against the second slide unit 6, and the thumb that is used for the operator carry out against.
Also be provided with bracing wire 8 in handle 1 and catheter main body 2, the front end of bracing wire 8 is fixedly connected on the front portion of catheter main body 2, is 0-5mm apart from the distance of tip electrode, and the rear end of bracing wire 8 is fixedly connected on the bobbin winoler 9 on the second slide unit 5.
In this specific embodiment, the guide finger (not shown) for the relative position of location the first slide unit 5 and the second slide unit 6 is installed also in the first slide unit 5.The front end of handle 1 is provided with the cushion pad 10 for the protection of catheter main body 2 rear ends.
Radio frequency ablation catheter in this specific embodiment also comprises the thermocouple (not shown), is connected with tip electrode, is used for detecting temperature.Also be provided with in catheter main body 2 and handle 1 for the wire that transmits the thermocouple signal of telecommunication.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all those skilled in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (8)
1. the radio frequency ablation catheter of a push-and-pull control head electrode, comprise handle, catheter main body, tip electrode, described tip electrode is installed on the front end of described catheter main body, the rear end of described catheter main body is installed on described handle, is provided with in described handle and catheter main body for tip electrode being electrically connected to the electrical connecting element of radio-frequency current generator; It is characterized in that, also be provided with bracing wire in described handle and catheter main body, described handle comprises the first slide unit and second slide unit of mutual socket, described the second slide unit is positioned at the outside of described the first slide unit, described the first slide unit is fixedly connected with the rear end of described catheter main body, the front end of described bracing wire is fixedly connected on the front portion of described catheter main body, and the rear end of described bracing wire is fixedly connected on described the second slide unit; Described radio frequency ablation catheter also comprises the thermocouple for detecting temperature, is connected with described tip electrode, also is provided with in described catheter main body and handle for the wire that transmits the thermocouple signal of telecommunication.
2. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 1, is characterized in that, described the first slide unit has for the jut against the second slide unit.
3. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 2, is characterized in that, described jut is prominent ring.
4. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 1, it is characterized in that, described electrical connecting element comprises connecting line and adapter, and an end of described connecting line is electrically connected to described tip electrode, and the other end is electrically connected to described adapter; Described adapter is installed in described the second slide unit.
5. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 1, is characterized in that, the front end of described bracing wire and the distance of described tip electrode are 0-5mm.
6. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 1, is characterized in that, in described the second slide unit, bobbin winoler is installed, and the rear end of described bracing wire is fixedly connected on described bobbin winoler.
7. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 1, is characterized in that, states the guide finger that also is equipped with in the first slide unit be used to the relative position of locating described the first slide unit and the second slide unit.
8. the radio frequency ablation catheter of push-and-pull control head electrode as claimed in claim 1, is characterized in that, the front end of described handle is provided with the cushion pad for the protection of described catheter main body rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533193 CN202933012U (en) | 2012-10-17 | 2012-10-17 | Radiofrequency ablation catheter of push-and-pull control head electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220533193 CN202933012U (en) | 2012-10-17 | 2012-10-17 | Radiofrequency ablation catheter of push-and-pull control head electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202933012U true CN202933012U (en) | 2013-05-15 |
Family
ID=48317278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220533193 Expired - Lifetime CN202933012U (en) | 2012-10-17 | 2012-10-17 | Radiofrequency ablation catheter of push-and-pull control head electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202933012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10842559B2 (en) | 2011-08-26 | 2020-11-24 | Symap Medical (Suzhou), Limited | System and method for locating and identifying the functional nerves innervating the wall of arteries and catheters for same |
| US11324408B2 (en) | 2011-08-26 | 2022-05-10 | Symap Medical (Suzhou), Ltd | Mapping sympathetic nerve distribution for renal ablation and catheters for same |
| US11576721B2 (en) | 2011-08-26 | 2023-02-14 | Symap Medical (Suzhou), Limited | System and method for mapping the functional nerves innervating the wall of arteries, 3-D mapping and catheters for same |
-
2012
- 2012-10-17 CN CN 201220533193 patent/CN202933012U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10842559B2 (en) | 2011-08-26 | 2020-11-24 | Symap Medical (Suzhou), Limited | System and method for locating and identifying the functional nerves innervating the wall of arteries and catheters for same |
| US11324408B2 (en) | 2011-08-26 | 2022-05-10 | Symap Medical (Suzhou), Ltd | Mapping sympathetic nerve distribution for renal ablation and catheters for same |
| US11576721B2 (en) | 2011-08-26 | 2023-02-14 | Symap Medical (Suzhou), Limited | System and method for mapping the functional nerves innervating the wall of arteries, 3-D mapping and catheters for same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE227550T1 (en) | TIP FOR SURGICAL HANDPIECE | |
| JP2011508628A5 (en) | ||
| CN202933012U (en) | Radiofrequency ablation catheter of push-and-pull control head electrode | |
| CN103519889A (en) | Radiofrequency ablation electrode assembly with double umbrella-shaped probe layers | |
| CN102940526A (en) | Radiofrequency ablation catheter with push-and-pull control head electrode | |
| CN203354540U (en) | Electroencephalogram cap | |
| CN102860868B (en) | The flood pattern of bipolar operation electrode and method | |
| CN201194837Y (en) | Radio frequency melting electrode with ultrasonic probe | |
| CN208017577U (en) | A kind of stepped mist-attracting high-frequency electrosurgical knife | |
| CN202207205U (en) | Anti-winding multifunctional high-frequency cutting knife with endoscope | |
| MX2015015420A (en) | Electrosurgery apparatus, in particular for ablation of a tissue mass from the body of a human or animal patient. | |
| CN103654948B (en) | A kind of two pole band Pressure wire radio frequency ablation catheter for renal arteries | |
| CN202821623U (en) | Multi-pole umbrella-shaped radiofrequency ablation catheter | |
| CN203122593U (en) | Water injection system of bipolar operation electrode | |
| CN102920506B (en) | A kind of multipole umbrella radio frequency ablation catheter | |
| CN205181470U (en) | Mirror is cut to electricity with novel seal structure | |
| CN202933013U (en) | Balloon dilatation type multi-electrode radiofrequency ablation catheter | |
| CN102940525A (en) | Multi-pole helicoidal radiofrequency ablation conduit | |
| CN204500940U (en) | Multifunction laser operative dissector | |
| CN203493738U (en) | Double-layer umbrella-shaped probe type radiofrequency ablation electrode device | |
| CN205126409U (en) | Radiofrequency ablation electrode with supplemental handle | |
| CN202821624U (en) | Multi-pole spiral radiofrequency ablation catheter | |
| CN208756147U (en) | It is a kind of can accurate flow control high-frequency surgery electric knife | |
| CN201930068U (en) | Bipolar electrocoagulator | |
| CN202437304U (en) | Multi-point uterine retractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |