CN110811821A - Ablation catheter - Google Patents
Ablation catheter Download PDFInfo
- Publication number
- CN110811821A CN110811821A CN201810922675.XA CN201810922675A CN110811821A CN 110811821 A CN110811821 A CN 110811821A CN 201810922675 A CN201810922675 A CN 201810922675A CN 110811821 A CN110811821 A CN 110811821A
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- Prior art keywords
- electrode catheter
- suction cup
- ablation catheter
- ablation
- electrode
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00273—Anchoring means for temporary attachment of a device to tissue
- A61B2018/00291—Anchoring means for temporary attachment of a device to tissue using suction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00351—Heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00595—Cauterization
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The technical scheme of the invention discloses an ablation catheter which comprises an electrode catheter main body, a fixing device and an operating handle, wherein the fixing device is detachably connected with the tail end of the electrode catheter main body, the operating handle is sleeved outside the fixing device, a sucker device is arranged at the head end of the electrode catheter main body, and a negative pressure device is connected to the end of the operating handle. According to the technical scheme, the sucker device is arranged at the head of the electrode catheter main body of the ablation catheter, the negative pressure device is arranged at the operating handle, and negative pressure suction is performed through the negative pressure device, so that the sucker device can be stably adsorbed on cardiac muscle, and the subsequent ablation operation is facilitated.
Description
Technical Field
The invention relates to the technical field of medical appliances, is suitable for cardiac electrophysiology examination and radio frequency ablation, and particularly relates to an ablation catheter.
Background
The heart intervenes and melts the pipe and is used for heart electrophysiology inspection and radio frequency ablation, melts the pipe and gets into through the blood vessel of hand or thigh blood vessel and carries out the operation ablation until heart inner myocardium, and the operation ablation is that the electrode pastes and forms the return circuit on the myocardium, and the heat effect of electric current reaches the effect of myocardial damage focus. However, with the contraction and relaxation of the heart, the part of the electrode catheter main body, which is positioned in the heart, is attached to the cardiac muscle, and sometimes contacts with and sometimes separates from the cardiac muscle, so that the natural damage focus is not accurate enough, and the operation time is long, therefore, an ablation catheter which can be stably attached to the cardiac muscle is urgently needed to solve the problem that the ablation catheter sometimes contacts with and sometimes separates from the cardiac muscle, and the natural damage focus is not accurate enough.
Disclosure of Invention
The invention solves the technical problem that the ablation catheter and the cardiac muscle are sometimes contacted and sometimes separated, and the focus of natural injury is not accurate enough.
In order to solve the technical problems, the technical scheme of the invention provides an ablation catheter, which comprises an electrode catheter main body, a fixing device and an operating handle, wherein the fixing device is detachably connected with the tail end of the electrode catheter main body, the operating handle is sleeved outside the fixing device, a sucker device is arranged at the head end of the electrode catheter main body, and a negative pressure device is connected to the end of the operating handle.
Optionally, the electrode catheter body is a hollow cylindrical strip structure penetrating in the length direction, wherein a metal wire element capable of conducting electric information runs in the hollow part.
Optionally, the part of the electrode catheter main body away from the fixing device is made of flexible materials, and the bending degree is adjustable.
Optionally, the head end of the electrode catheter main body is uniformly provided with a plurality of holes in the circumferential direction, and the electrode catheter main body can be used for cold saline infusion.
Optionally, the suction cup device is trumpet-shaped, the small end of the suction cup device faces towards the fixing device, and the large end of the suction cup device faces away from the fixing device and is located outside the electrode catheter main body.
Optionally, the small end of the suction cup means is sealed to the junction of the electrode catheter body.
Optionally, the radial direction of the suction cup means faces away from the fixation means.
Optionally, the suction cup device is disposed at a tip end of the electrode catheter main body in a sleeving manner.
Optionally, the suction cup device is provided on a surface of the tip end of the electrode catheter body.
The technical scheme of the invention has the beneficial effects that:
according to the invention, the sucker device is arranged at the head of the electrode catheter main body of the ablation catheter, the negative pressure device is arranged at the operating handle, and negative pressure suction is carried out through the negative pressure device, so that the sucker device can be stably adsorbed on cardiac muscle, and the subsequent ablation operation is convenient.
Drawings
FIG. 1 is a schematic view of an ablation catheter in an embodiment of the invention;
fig. 2 is an enlarged view at C in fig. 1.
The specific implementation mode is as follows:
the invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, an ablation catheter of an embodiment is shown, wherein the ablation catheter comprises an electrode catheter main body 1, a fixing device 2 and an operating handle 3, the fixing device 2 is detachably connected with the tail end of the electrode catheter main body 1, optionally in a threaded connection mode, and more specifically, the electrode catheter main body 1 is screwed into the fixing device 2. The operating handle 3 is sleeved outside the fixing device 2, the operating handle 3 and the fixing device 2 can be detachably connected through threaded connection or clamping connection or any other structures, and the operating handle 3 is used for controlling the bending degree of the electrode catheter main body 1.
The head end 11 of the electrode catheter main body 1 is provided with the sucking disc device 5, the end of the operating handle 3 is connected with the negative pressure device 4, negative pressure suction is carried out through the negative pressure device 4, air in the hollow parts of the sucking disc device 5 and the electrode catheter main body 1 is sucked away, the sucking disc device 5 can be stably and firmly attached to cardiac muscle, subsequent ablation is carried out, and a small part of blood is sucked in the hollow parts of the electrode catheter main body 1 in the negative pressure suction process. The ablation catheter in the embodiment adopts a negative pressure suction mode to suck out blood in the ablation catheter, and the negative pressure is maintained to enable the head end 11 of the electrode catheter main body 1 to be stably and vertically attached to the myocardial target position.
In this embodiment, the electrode catheter main body 1 is a hollow cylindrical bar structure penetrating in the length direction, the electrode catheter main body 1 has certain elasticity, the portion of the electrode catheter main body 1 away from the fixing device 2 is made of a flexible material, the curvature is adjustable, and the head end of the electrode catheter main body 1 is uniformly provided with a plurality of holes 6 in the circumferential direction for cold brine perfusion.
In the embodiment, the sucker device 5 is horn-shaped, the small end of the sucker device 5 faces the fixing device 2, and the large end of the sucker device 5 is back to the fixing device 2 and is positioned outside the electrode catheter main body 1; the joint of the small end of the sucker device 5 and the electrode catheter main body 1 is sealed, and the radial direction of the sucker device 5 is back to the fixing device 2.
The features and functions of the present invention will be further understood from the following description.
As shown in fig. 2, the suction cup device 5 is disposed at the tip end 11 of the electrode catheter body 1 in a sleeved manner. In this way, after the negative pressure device 4 performs negative pressure suction, the suction cup device 5 is attracted to the cardiac muscle, and the head end 11 may or may not contact the cardiac muscle due to a slight amount of vibration, but all of them may perform subsequent lesion ablation.
In summary, the invention adds a sucker device on the head end of the electrode catheter main body, and installs a negative pressure device at the position of the operating handle, the edge of the device can be slightly pushed forward after the head end is attached to the target object at the position of the myocardium, so that the head end is closely attached to the myocardium, and then the negative pressure device is used for performing negative pressure suction to suck blood between the head end and the myocardium, so as to achieve the purpose of attaching and fixing the head end to the myocardium again.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides an ablation catheter, its characterized in that includes electrode catheter main part, fixing device and operating handle, fixing device with the connection can be dismantled to the tail end of electrode catheter main part, the operating handle cover is established outside the fixing device, wherein, the head end of electrode catheter main part is equipped with the sucking disc device, the operating handle end is connected with negative pressure device.
2. The ablation catheter of claim 1, wherein the electrode catheter body is a hollow cylindrical strip structure extending through the length of the electrode catheter body, and wherein a metal wire member capable of conducting electrical information runs through the hollow portion.
3. The ablation catheter of claim 1, wherein a portion of the electrode catheter body distal from the fixation device is a flexible material with an adjustable degree of curvature.
4. The ablation catheter of claim 1, wherein the tip end of the electrode catheter body is uniformly provided with a plurality of holes in a circumferential direction for cold saline irrigation.
5. The ablation catheter of claim 4, wherein the suction cup device is flared with a small end of the suction cup device facing toward the fixation device and a large end of the suction cup device facing away from the fixation device and located outside the electrode catheter body.
6. The ablation catheter of claim 5, wherein the small end of the suction cup device is sealed to the electrode catheter body at the junction.
7. The ablation catheter of claim 1, wherein a radial direction of the suction cup device faces away from the fixation device.
8. The ablation catheter of claim 1, wherein the suction cup device is disposed at a tip end of the electrode catheter body in a sleeved manner.
9. The ablation catheter of claim 1, wherein the suction cup device is disposed on a surface of the tip of the electrode catheter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922675.XA CN110811821A (en) | 2018-08-14 | 2018-08-14 | Ablation catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922675.XA CN110811821A (en) | 2018-08-14 | 2018-08-14 | Ablation catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110811821A true CN110811821A (en) | 2020-02-21 |
Family
ID=69547195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810922675.XA Pending CN110811821A (en) | 2018-08-14 | 2018-08-14 | Ablation catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110811821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111772785A (en) * | 2020-08-24 | 2020-10-16 | 清华大学 | Thermal ablation catheter, device and sterilization method thereof |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200916A (en) * | 1997-05-29 | 1998-12-09 | 郭伟 | Slip-type adsorption electrode conduit tube |
| CN1625371A (en) * | 2001-11-29 | 2005-06-08 | 麦迪威公司 | Radio-frequency-based catheter system with improved deflection and steering mechanisms |
| CN101472531A (en) * | 2006-06-23 | 2009-07-01 | 圣朱德医疗有限公司房颤分公司 | Apparatus and method for ablating tissue |
| CN201356648Y (en) * | 2009-03-04 | 2009-12-09 | 微创医疗器械(上海)有限公司 | Saline perfusion RF ablation catheter |
| CN102100575A (en) * | 2009-12-17 | 2011-06-22 | 心诺普医疗技术（北京）有限公司 | Self-negative-pressure pericardicentesis device |
| CN102871728A (en) * | 2012-08-13 | 2013-01-16 | 中美联合技术(北京)有限公司 | Drainage system for double-pole operation electrode and method |
| CN103220994A (en) * | 2010-11-19 | 2013-07-24 | 圣犹达医疗用品电生理部门有限公司 | Electrode catheter device with indifferent electrode for direct current tissue therapies |
| CN103462687A (en) * | 2008-07-15 | 2013-12-25 | 凯斯费特股份有限公司 | Catheter and method for improved ablation |
| CN103892891A (en) * | 2012-12-28 | 2014-07-02 | 心诺普医疗技术（北京）有限公司 | Pericardium puncture needle component |
| CN103892902A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Perfusion absorption catheter |
| CN203789956U (en) * | 2014-03-05 | 2014-08-27 | 中国人民解放军第二军医大学 | Multifunctional needle for soft tissue biopsy and ablation |
| CN104918567A (en) * | 2012-12-28 | 2015-09-16 | 心诺普医疗技术（北京）有限公司 | Pericardium puncture needle assembly |
| CN204797987U (en) * | 2015-02-04 | 2015-11-25 | 黄冰生 | Can get into arrhythmia radio frequency that goes on treating in ventricle wall melts pipe |
| CN107440785A (en) * | 2016-06-01 | 2017-12-08 | 四川锦江电子科技有限公司 | A kind of absorption type ablation catheter and ablating device |
| CN107875503A (en) * | 2017-12-20 | 2018-04-06 | 深圳市赛诺思医疗科技有限公司 | Myocardial ablation device |
| CN107970059A (en) * | 2017-12-20 | 2018-05-01 | 北京云峰智联医疗科技开发有限公司 | Myocardial ablation device |
| CN108309435A (en) * | 2018-01-27 | 2018-07-24 | 刘晓华 | Radio frequency scalpel under a kind of mirror for surgical operation |
-
2018
- 2018-08-14 CN CN201810922675.XA patent/CN110811821A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200916A (en) * | 1997-05-29 | 1998-12-09 | 郭伟 | Slip-type adsorption electrode conduit tube |
| CN1625371A (en) * | 2001-11-29 | 2005-06-08 | 麦迪威公司 | Radio-frequency-based catheter system with improved deflection and steering mechanisms |
| CN101472531A (en) * | 2006-06-23 | 2009-07-01 | 圣朱德医疗有限公司房颤分公司 | Apparatus and method for ablating tissue |
| CN103462687A (en) * | 2008-07-15 | 2013-12-25 | 凯斯费特股份有限公司 | Catheter and method for improved ablation |
| CN201356648Y (en) * | 2009-03-04 | 2009-12-09 | 微创医疗器械(上海)有限公司 | Saline perfusion RF ablation catheter |
| CN102100575A (en) * | 2009-12-17 | 2011-06-22 | 心诺普医疗技术（北京）有限公司 | Self-negative-pressure pericardicentesis device |
| CN103220994A (en) * | 2010-11-19 | 2013-07-24 | 圣犹达医疗用品电生理部门有限公司 | Electrode catheter device with indifferent electrode for direct current tissue therapies |
| CN102871728A (en) * | 2012-08-13 | 2013-01-16 | 中美联合技术(北京)有限公司 | Drainage system for double-pole operation electrode and method |
| CN103892902A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Perfusion absorption catheter |
| CN103892891A (en) * | 2012-12-28 | 2014-07-02 | 心诺普医疗技术（北京）有限公司 | Pericardium puncture needle component |
| CN104918567A (en) * | 2012-12-28 | 2015-09-16 | 心诺普医疗技术（北京）有限公司 | Pericardium puncture needle assembly |
| CN203789956U (en) * | 2014-03-05 | 2014-08-27 | 中国人民解放军第二军医大学 | Multifunctional needle for soft tissue biopsy and ablation |
| CN204797987U (en) * | 2015-02-04 | 2015-11-25 | 黄冰生 | Can get into arrhythmia radio frequency that goes on treating in ventricle wall melts pipe |
| CN107440785A (en) * | 2016-06-01 | 2017-12-08 | 四川锦江电子科技有限公司 | A kind of absorption type ablation catheter and ablating device |
| CN107875503A (en) * | 2017-12-20 | 2018-04-06 | 深圳市赛诺思医疗科技有限公司 | Myocardial ablation device |
| CN107970059A (en) * | 2017-12-20 | 2018-05-01 | 北京云峰智联医疗科技开发有限公司 | Myocardial ablation device |
| CN108309435A (en) * | 2018-01-27 | 2018-07-24 | 刘晓华 | Radio frequency scalpel under a kind of mirror for surgical operation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111772785A (en) * | 2020-08-24 | 2020-10-16 | 清华大学 | Thermal ablation catheter, device and sterilization method thereof |
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Application publication date: 20200221 |
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| RJ01 | Rejection of invention patent application after publication |