CN109009068B - Petal-shaped annular lung mapping catheter - Google Patents
Petal-shaped annular lung mapping catheter Download PDFInfo
- Publication number
- CN109009068B CN109009068B CN201811049498.5A CN201811049498A CN109009068B CN 109009068 B CN109009068 B CN 109009068B CN 201811049498 A CN201811049498 A CN 201811049498A CN 109009068 B CN109009068 B CN 109009068B
- Authority
- CN
- China
- Prior art keywords
- petal
- shaped
- tube
- mapping catheter
- shaped arc
- 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.)
- Active
Links
- 238000013507 mapping Methods 0.000 title claims abstract description 20
- 210000004072 lung Anatomy 0.000 title description 7
- 210000003492 pulmonary vein Anatomy 0.000 claims abstract description 19
- 230000002685 pulmonary effect Effects 0.000 claims abstract description 7
- 230000001746 atrial effect Effects 0.000 claims abstract description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229910000566 Platinum-iridium alloy Inorganic materials 0.000 claims description 3
- 229920002614 Polyether block amide Polymers 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical class [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 206010003658 Atrial Fibrillation Diseases 0.000 description 11
- 238000002679 ablation Methods 0.000 description 2
- 210000004165 myocardium Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010015856 Extrasystoles Diseases 0.000 description 1
- 208000000418 Premature Cardiac Complexes Diseases 0.000 description 1
- 230000036982 action potential Effects 0.000 description 1
- 230000003126 arrythmogenic effect Effects 0.000 description 1
- 238000013153 catheter ablation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
-
- 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
Abstract
The invention discloses a petal-shaped annular pulmonary mapping catheter which is placed at a left atrial pulmonary vein port and comprises a petal-shaped arc tube and a connecting tube, wherein the first end of the petal-shaped arc tube is a free closed end, the second end of the petal-shaped arc tube is connected with the first end of the connecting tube, a plurality of protruding points are uniformly distributed on the petal-shaped arc tube, and an annular electrode for developing and collecting electric signals is arranged at each protruding point. The invention has at least the following advantages: has better reliability with the wall of the circumferential pulmonary vein, and can further accurately extract the electric signal and optimize the structure.
Description
Technical Field
The invention relates to the technical field of medical catheters, in particular to a petal-shaped annular lung mapping catheter.
Background
Currently, in China, more than 1000 ten thousand Atrial Fibrillation (AF) patients exist, the amount of Chinese catheter ablation surgery has been increased from 45363 cases to 122201 cases from 2009 to 2016 cases, the number of the atrial fibrillation ablation surgery in 2016 cases is 35000 cases, and the amount of atrial fibrillation ablation in the Chinese market is expected to be more than 85000 cases from 2020.
As early as 1966, researchers found that the pulmonary veins had streaked myocardium deep, and in 1981, these myocardium were found to be able to produce action potentials. Haissaguerre et al found that pulmonary veins could be involved in the onset of atrial fibrillation as an ectopic impulse source. This study, which has a milestone value, found that 94% of drug-insensitive atrial fibrillation originating in the pulmonary veins has ectopic activity in the pulmonary veins. They found that ablating these criminal pulmonary veins can eliminate premature beats that trigger atrial fibrillation. Subsequently, a great deal of research was conducted on arrhythmogenic pulmonary veins. Studies show that after the electric signals of the pulmonary vein ports are isolated, the atrial fibrillation cure rate reaches more than 90%, so that the circumferential pulmonary mapping catheter is crucial for the accuracy of the electric signal extraction of the circumferential pulmonary vein ports. Thus, the accurate mapping catheter for extracting the electrical signal of the circumferential pulmonary vein ostium is an indispensable part in the treatment of atrial fibrillation.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the petal-shaped annular lung mapping catheter which has good adhesion with the wall of the annular lung vein, so that the electrical signal can be accurately extracted, and the structure is optimized.
In order to solve the technical problems, the invention provides a petal-shaped annular pulmonary mapping catheter which is placed at a left atrial pulmonary vein port and comprises a petal-shaped arc tube and a connecting tube, wherein the first end of the petal-shaped arc tube is a free closed end, the second end of the petal-shaped arc tube is connected with the first end of the connecting tube, a plurality of protruding points are uniformly distributed on the petal-shaped arc tube, and an annular electrode for developing and collecting electric signals is arranged at each protruding point.
Further, the petal-shaped arc-shaped tube comprises a spiral NITI wire and an outer tube sleeved with the NITI wire.
Furthermore, the outer tube is made of PEBAX, nylon and TPU.
Further, a first pipeline and a second pipeline which are sealed relatively are arranged in the connecting pipe, the first pipeline is used for allowing wires connected with the ring electrodes to pass through, and the second pipeline is used for allowing stay wires for adjusting the self inclination angle of the connecting pipe to pass through.
Further, the inclination angle is between 0 and 180 degrees.
Further, a second end of the connecting pipe is connected with a handle for taking.
Further, the first end of the stay wire is connected with the petal-shaped arc tube, and the second end of the stay wire extends into the handle.
Further, the ring electrode is made of platinum iridium alloy.
By means of the technical scheme, the invention has at least the following advantages: because the human ring pulmonary vein is not regular circular, the ring electrode is arranged at the convex point through the petal-shaped arc-shaped tube, and compared with a traditional ring pulmonary mapping catheter, the ring electrode has better reliability with the wall of the ring pulmonary vein, thereby ensuring that the ring electrode can extract electric signals more accurately and improving the cure rate of atrial fibrillation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial cross-sectional view of the structure of the present invention;
fig. 3 is a schematic view of the overall curvature of the present invention. The method comprises the steps of carrying out a first treatment on the surface of the
In the above figures: 1. petal-shaped arc tube; 2. a connecting pipe; 3. a ring electrode; 4. NITI wire; 5. an outer tube; 6. a first pipe; 7. a second pipe; 8. a wire; 9. a pull wire; 10. a handle.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1 to 3, the invention discloses a petal-shaped annular pulmonary mapping catheter which is placed at a left atrial pulmonary vein ostium and comprises a petal-shaped arc-shaped tube 1 and a connecting tube 2. The first end of petal-shaped arced tube 1 is free blind end, the second end is connected the first end of connecting pipe, the equipartition has a plurality of bumps on the petal-shaped arced tube 1, every bump department is provided with the ring electrode 3 that is used for developing and gathering the signal of telecommunication. In the present invention, the ring electrode 3 is preferably made of platinum iridium alloy. Because the human ring pulmonary vein is not regular circular, through being provided with petal-shaped arced tube 1, guaranteed that ring electrode 3 sets up in bump department, compare with traditional ring pulmonary mapping catheter, the subsides between ring electrode 3 and the ring pulmonary vein wall are better, and then guaranteed that ring electrode 3 can extract the electrical signal more accurately, improve atrial fibrillation cure rate. And the ring electrode 3 is arranged at the salient points, so that interference of other parts of the petal-shaped arc tube 1 to the ring electrode 3 is avoided, and the error is small when the ring electrode collects signals.
In the invention, the petal-shaped arc-shaped tube comprises a spiral NITI wire 4 and an outer tube 5 sleeved with the NITI wire 4. By arranging the NITI wire 4, the NITI wire 4 has super elasticity and memory, an operator can conveniently squeeze the petal-shaped arc tube 1 into a shape convenient to insert through external force, and when the NITI wire 4 passes through a sheath tube to reach a specified position, the NITI wire is restored into a petal shape; and the NITI wire 4 is spiral, and can be matched with the ring electrode 3 to better read the electric signal of the periphery of the pulmonary vein. In the present invention, preferably, the outer tube 5 is made of PEBAX, nylon, or TPU. The outer tube 5 is deformed synchronously with the NITI wire 4.
In the invention, a first pipeline 6 and a second pipeline 7 which are sealed relatively are arranged in the connecting pipe 2, the first pipeline 6 is used for allowing a lead wire 8 connected with the ring electrode 3 to pass through, and the second pipeline 7 is used for allowing a stay wire 9 for adjusting the self inclination angle of the connecting pipe 2 to pass through. Through foretell setting up the mode, when the angle at adjusting connection pipe 2, can avoid the wearing and tearing between acting as go-between 9 and the wire 8, guarantee the stability of ring lung mapping catheter operation, prolonged ring lung mapping catheter's life simultaneously, structural optimization.
According to the invention, the inclination angle is between 0 and 180 degrees, and the position to be detected can be better adapted through angle adjustment, so that the accuracy of signal acquisition of the ring electrode 3 is improved. In the invention, preferably the second end of the connecting pipe 2 is connected with a handle 10 for taking, and the handle 10 is internally provided with a cavity; the first end of the stay wire 9 is connected with the petal-shaped arc tube 1, and the second end extends into the handle 10.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. The petal-shaped annular pulmonary mapping catheter is placed at a left atrial pulmonary vein port and is characterized by comprising a petal-shaped arc tube and a connecting tube, wherein the first end of the petal-shaped arc tube is a free closed end, the second end of the petal-shaped arc tube is connected with the first end of the connecting tube, a plurality of protruding points are uniformly distributed on the petal-shaped arc tube, and an annular electrode for developing and collecting electric signals is arranged at each protruding point; the petal-shaped arc-shaped tube comprises a spiral NITI wire and an outer tube sleeved with the NITI wire.
2. The petal-shaped circumferential mapping catheter of claim 1, wherein the outer tube is made of PEBAX, nylon, TPU.
3. The petal-shaped circumferential mapping catheter of claim 1, wherein a first conduit and a second conduit are disposed in the connecting tube in a relatively sealed manner, the first conduit being for the passage of a wire connecting the ring electrodes, and the second conduit being for the passage of a pull wire adjusting the inclination angle of the connecting tube itself.
4. A petal-shaped circumferential mapping catheter according to claim 3, wherein said inclination angle is between 0-180 °.
5. The petal-shaped circumferential mapping catheter of claim 4, wherein a second end of said connecting tube is connected to a handle for taking.
6. The petal annular mapping catheter of claim 5, wherein said pull wire first end connects said petal arcuate tube and second end extends into said handle.
7. The petal-shaped circumferential mapping catheter of claim 1, wherein the ring electrode is made of platinum iridium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811049498.5A CN109009068B (en) | 2018-09-10 | 2018-09-10 | Petal-shaped annular lung mapping catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811049498.5A CN109009068B (en) | 2018-09-10 | 2018-09-10 | Petal-shaped annular lung mapping catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109009068A CN109009068A (en) | 2018-12-18 |
| CN109009068B true CN109009068B (en) | 2024-02-13 |
Family
ID=64620571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811049498.5A Active CN109009068B (en) | 2018-09-10 | 2018-09-10 | Petal-shaped annular lung mapping catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109009068B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006020920A2 (en) * | 2003-01-29 | 2006-02-23 | Medtronic, Inc. | Catheter apparatus for treatment of heart arrhythmia |
| CN1966104A (en) * | 2005-11-16 | 2007-05-23 | 屈百鸣 | Device for marking, measuring and guiding catheter for pulmonary vein orifice for ablation |
| CN101190146A (en) * | 2006-11-21 | 2008-06-04 | 李楚森 | Cardiac intervention ablation catheter |
| CN101304778A (en) * | 2005-09-16 | 2008-11-12 | 韦伯斯特生物官能公司 | Catheter with flexible pre-shaped tip section |
| CN209107335U (en) * | 2018-09-10 | 2019-07-16 | 科塞尔医疗科技（苏州）有限公司 | Petal ring lung mapping catheter |
-
2018
- 2018-09-10 CN CN201811049498.5A patent/CN109009068B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006020920A2 (en) * | 2003-01-29 | 2006-02-23 | Medtronic, Inc. | Catheter apparatus for treatment of heart arrhythmia |
| CN101304778A (en) * | 2005-09-16 | 2008-11-12 | 韦伯斯特生物官能公司 | Catheter with flexible pre-shaped tip section |
| CN1966104A (en) * | 2005-11-16 | 2007-05-23 | 屈百鸣 | Device for marking, measuring and guiding catheter for pulmonary vein orifice for ablation |
| CN101190146A (en) * | 2006-11-21 | 2008-06-04 | 李楚森 | Cardiac intervention ablation catheter |
| CN209107335U (en) * | 2018-09-10 | 2019-07-16 | 科塞尔医疗科技（苏州）有限公司 | Petal ring lung mapping catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109009068A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10898707B2 (en) | Securing an implantable medical device in position while reducing perforations | |
| US7567838B2 (en) | Method for sensing cardiac contractile function using a lead insertable motion sensor | |
| US20140330150A1 (en) | Persistent display of nearest beat characteristics during real-time or play-back electrophysiology data visualization | |
| CA2622742C (en) | Catheter with flexible pre-shaped tip section | |
| CN207101338U (en) | Three-dimensional atrial septal puncture system | |
| CA2437680A1 (en) | Catheter and method for mapping purkinje fibers | |
| JP2018525198A (en) | Devices and methods for mapping cardiac arrhythmias | |
| WO2023124501A1 (en) | Spherical multi-electrode mapping head end and mapping catheter | |
| CN108324269A (en) | Multi-electrode component with controlled fold mechanism | |
| US20210106271A1 (en) | Modular cardiac rhythm management using q to lv activation measures | |
| EP3095404A1 (en) | Catheter with anchoring balloon assembly | |
| CN109009068B (en) | Petal-shaped annular lung mapping catheter | |
| CN113101516A (en) | Auxiliary blood pumping catheter pump | |
| CN106308920A (en) | Ablation catheter | |
| CN106308922A (en) | Multi-electrode ablation device | |
| CN209107335U (en) | Petal ring lung mapping catheter | |
| CN208145244U (en) | A kind of temporary cardiac pacing electrode catheter with pressure detecting | |
| CN218420028U (en) | Markable heart pulse ablation catheter | |
| CN105796093B (en) | Central venous catheter external member | |
| JP7254096B2 (en) | circular mapping catheter | |
| CN117064533A (en) | Mapping electrode catheter and mapping device | |
| CN202777453U (en) | Active fixed-type electrode catheter | |
| CN111970968A (en) | Myocardial electrical signal perception capturing catheter | |
| CN209091556U (en) | Three-dimensional atrial septal puncture component | |
| KR102167091B1 (en) | Electrophysiology catheter including Snare |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |