CN111419389A - Magnetic navigation guiding high-density mapping ablation catheter - Google Patents
Magnetic navigation guiding high-density mapping ablation catheter Download PDFInfo
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- CN111419389A CN111419389A CN202010350280.4A CN202010350280A CN111419389A CN 111419389 A CN111419389 A CN 111419389A CN 202010350280 A CN202010350280 A CN 202010350280A CN 111419389 A CN111419389 A CN 111419389A
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- electrode
- mapping
- density mapping
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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
- A61B18/1402—Probes for open surgery
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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
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02405—Determining heart rate variability
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
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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
- A61B2018/00315—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2051—Electromagnetic tracking systems
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- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Physiology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The invention relates to the technical field of electrocardiogram mapping and ablation, and discloses a magnetic navigation guide high-density mapping ablation catheter which comprises a catheter body and an electrode head end, wherein the left end of the catheter body and the right side of the electrode head end are fixedly installed, the electrode head end is sequentially provided with a first electrode, a second electrode and a high-density mapping balloon from left to right, a working electrode pair is arranged between the surfaces of the first electrode and the second electrode, a magnetic inductor is arranged at the central position inside the second electrode, and a microelectrode is arranged on the surface of the high-density mapping balloon; according to the invention, through the arrangement of the catheter body, the electrode head end, the first electrode, the second electrode, the high-density mapping balloon, the operation electrode pair, the magnetic inductor and the microelectrode, the mapping speed can be increased, the mapping effect is ensured, and the problems that the conventional magnetic navigation mapping ablation catheter is quadrupole in most cases, the mapping is slow and the fine mapping is poor are solved.
Description
Technical Field
The invention relates to the technical field of electrocardiogram mapping and ablation, in particular to a magnetic navigation guiding high-density mapping ablation catheter.
Background
The origin of the electrical activity of the heart and conduction abnormalities can lead to the occurrence of arrhythmia, and catheter ablation is an important method for treating arrhythmia. Catheter ablation is currently used to treat arrhythmias, and magnetic navigation allows arrhythmia mapping and ablation by controlling catheter motion. However, the current magnetic navigation mapping ablation catheter is quadrupole, the mapping is slow, and the fine mapping effect is not good, so that the magnetic navigation mapping ablation catheter with high mapping speed and high precision is provided.
Disclosure of Invention
The invention aims to provide a magnetic navigation guiding high-density mapping ablation catheter which has high mapping speed, solves the problems that the existing magnetic navigation mapping ablation catheter is quadrupole, is slow in mapping and poor in fine mapping effect, and therefore provides the magnetic navigation guiding mapping ablation catheter with high mapping speed and high precision.
In order to achieve the purpose, the invention provides the following technical scheme: the magnetic navigation guide high-density mapping ablation catheter comprises a catheter body and an electrode head end, wherein the left end of the catheter body is fixedly mounted with the right side of the electrode head end, a first electrode, a second electrode and a high-density mapping balloon are sequentially arranged on the electrode head end from left to right, an operation electrode pair is arranged between the surfaces of the first electrode and the second electrode, a magnetic inductor is arranged at the center position inside the second electrode, and a microelectrode is arranged on the surface of the high-density mapping balloon.
Preferably, the microelectrodes are arranged in 5 × 6 rows, and the number of the microelectrodes is thirty.
Preferably, the microelectrodes are adhered to each other through insulating rubber to form electrode pairs, each electrode pair is composed of two microelectrodes, and two adjacent electrode pairs are fixed through elastic rubber adhesion.
Preferably, the microelectrodes are spaced apart and equidistantly distributed.
Preferably, the first electrode and the second electrode form a pair and are of an integrally formed structure, and the second electrode is of a hollow structure and is communicated with the catheter body.
Preferably, the working electrode pair is composed of two microelectrodes, and the microelectrodes are connected to the right end of the catheter body through a lead.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the arrangement of the catheter body, the electrode head end, the first electrode, the second electrode, the high-density mapping balloon, the operation electrode pair, the magnetic inductor and the microelectrode, the mapping speed can be increased, the mapping effect is ensured, and the problems that most of the existing mapping ablation catheters are quadrupoles, the quadrupoles are slow in mapping and the fine mapping effect is poor are solved.
Drawings
FIG. 1 is a schematic front view of the inventive structure;
FIG. 2 is a schematic diagram showing the distribution of microelectrodes according to the present invention;
FIG. 3 is a partial schematic view of a working electrode pair according to the present invention;
FIG. 4 is a schematic view of a magnetic sensor according to the present invention;
fig. 5 is a schematic view of the operation of the high-density mapping balloon of the present invention.
In the figure: 1. a catheter body; 2. an electrode tip; 21. a first electrode; 22. a second electrode; 23. a high-density mapping balloon; 3. an operating electrode pair; 4. a magnetic inductor; 5. a microelectrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.
Referring to fig. 1-5, a magnetic navigation guiding high-density mapping ablation catheter comprises a catheter body 1 and an electrode head end 2, the left end of the catheter body 1 and the right side of the electrode head end 2 are fixedly installed, the electrode head end 2 is sequentially provided with a first electrode 21, a second electrode 22 and a high-density mapping balloon 23 from left to right, a working electrode pair 3 is arranged between the surfaces of the first electrode 21 and the second electrode 22, a magnetic sensor 4 is arranged at the center position inside the second electrode 22, the outer side of the magnetic sensor 4 is surrounded, and a microelectrode 5 is arranged on the surface of the high-density mapping balloon 23, the invention can improve mapping speed and ensure mapping effect through the arrangement of the catheter body 1, the electrode head end 2, the first electrode 21, the second electrode 22, the high-density mapping balloon 23, the working electrode pair 3, the magnetic sensor 4 and the microelectrode 5, the problems that most of the existing mapping ablation catheters are quadrupoles, quadrupoles are slow in mapping, and the fine mapping effect is poor are solved.
Referring to fig. 2, the micro-electrodes 5 are arranged in 5 × 6, the number of the micro-electrodes 5 is thirty, and the number of the micro-electrodes 5 does not affect the flexibility.
Referring to fig. 2, the microelectrodes 5 are bonded to each other by an insulating rubber to form an electrode pair, each electrode pair is composed of two microelectrodes 5, two adjacent electrode pairs are bonded and fixed by an elastic rubber, and the electrode pairs can assist in exerting the effect of the high-density mapping balloon 23.
Referring to fig. 2, the microelectrodes 5 are spaced apart from each other and are equidistantly spaced for mapping.
Referring to fig. 3, the first electrode 21 and the second electrode 22 form a pair and are integrally formed, and the second electrode 22 is hollow and is communicated with the catheter body 1.
Referring to FIG. 3, the working electrode pair 3 is composed of two microelectrodes 5, and the microelectrodes 5 are connected to the right end of the catheter body 1 via wires.
The working principle is as follows: the high-density mapping saccule 23 is inflated or expanded after being filled with liquid to form an ellipsoid, high-density mapping can be performed, and the microelectrode 5 is used for mapping.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present patent have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present patent, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Magnetic navigation guide high density mapping ablation catheter, including catheter body (1) and electrode head end (2), its characterized in that: the left end of the catheter body (1) is fixedly mounted on the right side of the electrode head end (2), a first electrode (21), a second electrode (22) and a high-density mapping balloon (23) are sequentially arranged on the electrode head end (2) from left to right, an operation electrode pair (3) is arranged between the surfaces of the first electrode (21) and the second electrode (22), a magnetic inductor (4) is arranged in the center of the interior of the second electrode (22), and a microelectrode (5) is arranged on the surface of the high-density mapping balloon (23).
2. The magnetic navigation guided high-density mapping ablation catheter of claim 1, wherein: the microelectrodes (5) are arranged in 5-6 rows, and the number of the microelectrodes (5) is thirty.
3. The magnetic navigation guided high-density mapping ablation catheter of claim 1, wherein: the microelectrodes (5) are adhered through insulating rubber to form electrode pairs, each electrode pair is composed of two microelectrodes (5), and two adjacent electrode pairs are fixed through elastic rubber adhesion.
4. The magnetic navigation guided high-density mapping ablation catheter of claim 1, wherein: the microelectrodes (5) are arranged at intervals and are distributed at equal intervals.
5. The magnetic navigation guided high-density mapping ablation catheter of claim 1, wherein: the first electrode (21) and the second electrode (22) form a pair and are of an integrally formed structure, and the interior of the second electrode (22) is of a hollow structure and is communicated with the catheter body (1).
6. The magnetic navigation guided high-density mapping ablation catheter of claim 1, wherein: the operation electrode pair (3) consists of two microelectrodes (5), and the microelectrodes (5) are connected to the right end of the catheter body (1) through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010350280.4A CN111419389A (en) | 2020-04-28 | 2020-04-28 | Magnetic navigation guiding high-density mapping ablation catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010350280.4A CN111419389A (en) | 2020-04-28 | 2020-04-28 | Magnetic navigation guiding high-density mapping ablation catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111419389A true CN111419389A (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010350280.4A Pending CN111419389A (en) | 2020-04-28 | 2020-04-28 | Magnetic navigation guiding high-density mapping ablation catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111419389A (en) |
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2020
- 2020-04-28 CN CN202010350280.4A patent/CN111419389A/en active Pending
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