CN108272450A - A kind of miniature multipole mapping catheter - Google Patents
A kind of miniature multipole mapping catheter Download PDFInfo
- Publication number
- CN108272450A CN108272450A CN201710007497.3A CN201710007497A CN108272450A CN 108272450 A CN108272450 A CN 108272450A CN 201710007497 A CN201710007497 A CN 201710007497A CN 108272450 A CN108272450 A CN 108272450A
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- Prior art keywords
- tube body
- electrode
- mapping catheter
- antisitic defect
- defect structure
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/283—Invasive
-
- 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
-
- 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
- A61B5/6867—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 specially adapted to be attached or implanted in a specific body part
- A61B5/6869—Heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
- A61M2210/125—Heart
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Cardiology (AREA)
- Electrotherapy Devices (AREA)
Abstract
The present invention relates to cardiac-mapping catheter fields, more particularly to a kind of miniature multipole mapping catheter comprising tube body is provided with the electrode for mapping outside the tube body, the tubular body is equipped with electrode cable and is used to support the lining core of tube body, and the electrode cable is connect with the electrode；It is used for the mapping in heart, and the distal ports of the tube body are tapered and have proximally and distally, and the distal end caliber of the distal ports of tube body is less than the proximal end caliber of the distal ports；The purpose of the present invention is to provide a kind of miniature multipole mapping catheters that posterior vein of left ventricle, middle cardiac vein and accurate mapping left ventricular epicardium and left ventricle bioelectrical activity can be reached along coronary sinus.
Description
Technical field
The present invention relates to cardiac-mapping catheter field, more particularly to a kind of miniature multipole mapping catheter.
Background technology
Mapping catheter is commonly used for the bioelectrical activity in stimulation and mapping heart.
It is typically directly put near expected tested tissue when mapping, according to cardiac anatomy, right ventricle atrium dextrum is logical
Mapping catheter can be often put near test serum by inferior caval vein and superior vena cava, atrium sinistrum can be worn by atrial septum
Lunge into, however left ventricle need to drive in the wrong direction through aorta and enter mapping intra-ventricle bioelectrical activity, but this method operation compared with suffering and
Left ventricle external membrane of heart electro physiology conducted signal still can not accurate mapping.
The method for being currently known and commonly using mapping left ventricle is that mapping catheter is put into coronary sinus, but the party through orifice of coronary sinus
The detection left ventricle that method can only be omited just（Or/and atrium sinistrum）Bioelectrical activity, can not accurate mapping left ventricular epicardium and the left heart
Room bioelectrical activity, thus there is an urgent need for a kind of miniature multipole mapping catheter can along coronary sinus reach posterior vein of left ventricle, middle cardiac vein with
To left ventricular epicardium and the accurate mapping of left ventricle bioelectrical activity.
Invention content
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, provide a kind of can reach along coronary sinus
The miniature multipole mapping catheter of posterior vein of left ventricle, middle cardiac vein and accurate mapping left ventricular epicardium and left ventricle bioelectrical activity.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes：
A kind of miniature multipole mapping catheter comprising tube body, the tube body have distal ports, set outside the distal ports of the tube body
It is equipped with the electrode for mapping, the tubular body is equipped with electrode cable and is used to support the lining core of tube body, and the electrode is led
Line is connect with the electrode；
It is used for the mapping in heart, and the distal ports of the tube body are tapered and have proximally and distally, the distal ports of tube body
Distal end caliber is less than the proximal end caliber of the distal ports of the tube body.
The tapered setting of distal ports of the tube body, to tube body distal ports distal end extend during, tube body it is remote
Hold the diameter of section can be smaller and smaller, the method for commonly using mapping left ventricle in the prior art is to put mapping catheter through orifice of coronary sinus
Enter coronary sinus, so existing catheter tube is all without prominent pyramidal structure, cylindrical structure can accomplish sufficiently fine（It is interior
There are the materials such as lining core, conducting wire in portion）Into orifice of coronary sinus, but the detection left ventricle that this method can only just slightly（Or/and atrium sinistrum）
Bioelectrical activity, can not accurate mapping left ventricular epicardium and left ventricle bioelectrical activity, in the course of surgery heart may go out
Existing Tremorgen because there is certain probability is generated at left ventricular epicardium, and in case of such case, doctor can not know, then suffer from
Easily there is life danger in person, now using a kind of new method come mapping left ventricular epicardium and left ventricle bioelectrical activity, band
The conduit of mapping electrodes reaches posterior vein of left ventricle along coronary sinus, middle cardiac vein carries out mapping, but posterior vein of left ventricle, middle cardiac vein
Compared to orifice of coronary sinus want it is tiny much existing tube body can not reach, so the application is using the tapered set-up mode of tube body
（The tapered set-up mode of the distal ports of at least tube body）, keep the distal ports of tube body thinner closer to distalmost end, so as to full
Foot reaches the requirement of posterior vein of left ventricle, middle cardiac vein, so as to accurate mapping left ventricular epicardium and left ventricle bioelectrical activity.
As the preferred embodiment of the present invention, the body distal end is equipped with tapered and has loss prevention proximally and distally
Hinder structure, antisitic defect structure outer profile and outer surface of tube body seamlessly transit, and the proximal end caliber of the antisitic defect structure is big
In the distal end caliber of antisitic defect structure, posterior vein of left ventricle, middle cardiac vein are part almost the most fragile in heart, antisitic defect knot
The setting of structure can make tube body prevent damage posterior vein of left ventricle, quiet in the heart during stretching into posterior vein of left ventricle, middle cardiac vein
Arteries and veins, also taper is arranged antisitic defect structure, while reducing direction is consistent with tube body, and outer profile and outer surface of tube body are smoothed
It crosses, the whole outer surface of mapping catheter can be made smoother regular, effectively prevent damage posterior vein of left ventricle, middle cardiac vein, simultaneously
The reducing feature of tube body is also continued in antisitic defect structure, is playing the work for preventing damage posterior vein of left ventricle, middle cardiac vein
The reducing function for also having taken into account tube body simultaneously under, can preferably stretch into posterior vein of left ventricle, middle cardiac vein.
As the preferred embodiment of the present invention, the head of antisitic defect structure distal end is set as circular arc camber, removes any
The corner angle that may cause damage are better protected from mapping catheter damage posterior vein of left ventricle, middle cardiac vein.
As the preferred embodiment of the present invention, under the conduit off working state, the tapered profiles of the tube body outer are to pipe
Extension line outside body front end and the outer contour convergence of antisitic defect structure, antisitic defect structure is consistent with the reducing direction of tube body, and manages
Extension line and antisitic defect structure outer contour convergence of the tapered profiles on external edge to outside tube body front end, can make mapping catheter
Whole outer surface is smoother regular, and the exterior contour of different structure is seamlessly connected and does not generate any extra or irregular knot
Structure effectively prevent damage posterior vein of left ventricle, middle cardiac vein, while the reducing feature of tube body is also prolonged in antisitic defect structure
It is continuous, play prevent damage posterior vein of left ventricle, middle cardiac vein under the action of also and meanwhile taken into account tube body reducing it is functional, Neng Gougeng
Posterior vein of left ventricle, middle cardiac vein are stretched into well.
As the preferred embodiment of the present invention, the antisitic defect structure is elastomer and can be along itself axial tension and pressure
Contracting, mapping catheter is during stretching into heart, orifice of coronary sinus, coronary sinus, posterior vein of left ventricle and middle cardiac vein, more or less
There are frictional force, antisitic defect structure to be elastomer and can make antisitic defect knot along the scheme of itself tensile and compress certainly
Structure will not cause these structures when encountering frictional force the scratch of hardness, but slowed down by stretching and compressing or avoid this
A process.
As the preferred embodiment of the present invention, the lining core is pierced by from the body distal end head and extends to the antisitic defect
Inside configuration, and finally connected with the head of antisitic defect structure free end, very little is often arranged in the elasticity modulus of antisitic defect structure,
And such case makes elastomer easily there is a situation where fatigue in deformation process, then can not restore, lining core is from the body distal end
Head is paid, and is paid part and be threaded through the antisitic defect inside configuration and finally connected with the head of antisitic defect structure free end
Set-up mode so that the deformation of antisitic defect structure is kept in the reasonable scope, and it is final under off working state because of lining core
Support can revert to a stable state, prevent the situation of above-mentioned fatigue from occurring.
As the preferred embodiment of the present invention, braiding layer is provided between the tube body and lining core, the electrode cable is as volume
For weaving and knitting in the braiding layer, this structure can further save space, coordinate tube body and antisitic defect structure taper
Set-up mode, can accomplish thinner diameter under limited industrial level, its satisfaction is made to stretch into posterior vein of left ventricle, quiet in the heart
The requirement of arteries and veins.
As the preferred embodiment of the present invention, the electrode is successively set on outer surface of tube body, the electrode cable along tube body
The position of its own adjacent connection electrode enters the braiding layer, and this mode and electrode cable are cross-woven in braiding layer
Scheme coordinates, and the quantity for more arriving the remote electrode conducting wire of tube body is fewer, for example, one shares 12 electrodes, in proximal end, there will be 12
Root electrode cable, when reaching electrode half, the quantity of electrode cable is reduced to 6, therefore in braiding from electrode beginning
It is woven for taper and the diameter of braiding layer can be smaller and smaller, the caliber to be entire tube body is smaller and smaller.
As the preferred embodiment of the present invention, it is provided with insulating layer between the lining core and the braiding layer, because using
Electrode cable is woven to the mode of braiding layer, and the setting of insulating layer can be effectively prevented electric signal interference, increase the essence of mapping
Exactness.
As the preferred embodiment of the present invention, the insulating layer includes polyimide material, and more resistant to high temperature, insulation performance is more
It is good.
Compared with prior art, beneficial effects of the present invention：
Posterior vein of left ventricle, middle cardiac vein and accurate mapping left ventricular epicardium and left ventricle bioelectrical activity can be reached along coronary sinus.
Description of the drawings：
Fig. 1 is the overall structure diagram of the mapping catheter in the embodiment of the present application 1；
Fig. 2 is the structural schematic diagram of the distal ports of the tube body in the embodiment of the present application 1；
Fig. 3 is the structural schematic diagram of the antisitic defect structure in the embodiment of the present application 1；
Fig. 4 is the axial sectional view of the distal ports of the tube body in the embodiment of the present application 1；
Fig. 5 is the structural schematic diagram of the lining core in the embodiment of the present application 1；
Fig. 6 is the tube body radial cross-section in the embodiment of the present application 1；
Fig. 7 is the braiding schematic diagram of a layer structure in the embodiment of the present application 1；
It is marked in figure：The head of 1- antisitic defect structures free end, 2- antisitic defect structures, 3- connecting elements, 4- electrode As, 5- electrodes
B, 6- tube body, 7- connectors, 8- electrode cables, 81- braided fibers, 9- lining cores, 91- lining cores distal end, 92- lining cores proximal end, 10- pipes
The proximal end of body, the distal end of 11- tube bodies, 12- insulating layers, 13- braiding layers.
Specific implementation mode
With reference to embodiment and specific implementation mode, the present invention is described in further detail.But this should not be understood
It is only limitted to embodiment below for the range of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that the content of present invention is realized
The range of invention.
Embodiment 1
Such as Fig. 1-7, a kind of miniature multipole mapping catheter（Such as Fig. 1）Comprising tube body 6, the tube body 6 have distal ports and proximal end
Section（Such as Fig. 2, the left side is the distal end 11 of tube body in figure, and the right is the proximal end 10 of tube body, and in the present embodiment, the tube body 6 is not only
The tapered setting of distal ports, whole also tapered setting）, 6 tail end of the tube body（That is the proximal segment of tube body 6）It is connected with connection
11 sections of the distal end outside of device 7, the tube body is provided with the electrode for mapping（Including electrode A 4 and electrode B 5, electrode A 4, electricity
Pole B5 forms electrode pair, is evenly arranged in successively on tube body 6, electrode width 0.50mm-2mm, electrode centering is in the heart away from 1.0-
4.0mm, electrode centering is in the heart away from 5mm-10mm, and electrode is to being arranged to adapt to mapping position physiological characteristic construction, each electrode
To extracting one group of electricity physiological signal, electrode is electrode to extracting interelectrode potential difference, electrode to detection electricity physiological signal principle
Then signal to detecting conduit is transmitted to processing equipment by connector 7 by electrode cable 8 and is converted into identifiable electricity life
Manage signal.Electrode is smaller to spacing, and the electricity physiological signal of detection is more accurate, and the opposite range for detecting signal becomes smaller.Electrode
A4, B are ring electrode, and material is platinumiridio, while may be wire-winding electrode, and the material of wire-winding electrode can be with life
The platinumiridio silk helically coiling of object compatibility forms, can also be above ring electrode on cut into spiral electrode, such as Fig. 2）,
It is equipped with electrode cable 8 inside the tube body 6 and is used to support the lining core 9 of tube body 6, the electrode cable 8 connects with the electrode
It connects, the electrode is successively set on 6 outer surface of tube body along tube body 6；
The miniature multipole mapping catheter for the mapping in heart, the distal ports of the tube body 6 it is tapered and have distal end and
Proximal end（11 diameter of distal end of body distal end section is less than 10 diameter of proximal end of body distal end section）, 6 distal end of the tube body, which is equipped with, is in
Taper and have antisitic defect structure 2 proximally and distally（Such as Fig. 3）, the antisitic defect structure 2 passes through connecting elements 3 and described
Tube body 6 connects, and the head 1 of antisitic defect structure distal end is set as circular arc camber（It is specially hemispherical in the present embodiment, loss prevention
The material for hindering the head 1 of structure distal end is that platinumiridio or stainless steel or gold solder tin welding are made）, and antisitic defect structure 2
Stage casing is then spring（It can also be made of plastics flexible）, the length of spring is 5-15mm, and the spring ring outer diameter in spring
Between 0.30-0.80mm, 2 outer profile of the antisitic defect structure（The outer profile of spring）With 6 outer surface smoother mistake of tube body
It crosses, the proximal end caliber of the antisitic defect structure 2 is more than the distal end caliber of antisitic defect structure 2.
Specifically, under the conduit off working state, tapered profiles the prolonging to outside 6 front end of tube body of 6 outer of the tube body
Stretch the 2 outer contour convergence of line and antisitic defect structure.
The antisitic defect structure 2 is elastomer and can be along itself tensile and compress, and the lining core 9 is from the tube body
6 distal tips are pierced by and extend to 2 inside of the antisitic defect structure and final and antisitic defect structure free end the connection of head 1,
The also tapered setting of the lining core 9（Such as Fig. 5）, for the diameter of lining core distal end 91 less than lining core proximal end 92,91 connection of lining core distal end is anti-
The head 1 of damaged structure free end, lining core proximal end 92 is connect with the non-functional pin in connector 7, and corresponding functional pin
It is absolutely dielectrically separated from lining core 9, lining core 9, which pays 6 distal portions of tube body, can enhance 2 rigidity of antisitic defect structure and prevent loss prevention
Hinder structure 2 to fall off.
Meanwhile such as Fig. 4,6,7, braiding layer 13 is provided between the tube body 6 and lining core 9（It is wrapped by tube body 6 in 13 outside of braiding layer
It wraps up in, 6 material of tube body is THV, TPU or PEBAX etc., and molding mode is that pyrocondensation or laminate form obtain, the proximal segment of whole tube body 6
Outer diameter 1.5F-4F, far disconnected section outer diameter 1F-2F）, the electrode cable 8 is circumferentially woven in the volume as litzendraht wire across
In tissue layer 13（Electrode cable 8 is enameled wire, has insulation function, to prevent electric signal from interfering）, while also having in braiding layer 13
Braided fiber 81 is used as litzendraht wire（The addition of braided fiber 81 can increase by 6 flexibility of tube body and rigidity）, in the insulating layer 12
Including polyimide material, 9 internal material of lining core is stainless steel or high resiliency Nitinol, specifically, the electrode cable 8 is equal
The position of its own adjacent connection electrode enters the braiding layer 13.
Claims (10)
1. a kind of miniature multipole mapping catheter comprising tube body, the tube body have a distal ports, outside the distal ports of the tube body
It is provided with the electrode for mapping, the tubular body is equipped with electrode cable and is used to support the lining core of tube body, the electrode
Conducting wire is connect with the electrode；
It is characterized in that,
It is used for the mapping in heart, and the distal ports of the tube body are tapered and have proximally and distally, the distal ports of tube body
Distal end caliber is less than the proximal end caliber of the distal ports of the tube body.
2. a kind of miniature multipole mapping catheter according to claim 1, which is characterized in that the body distal end, which is equipped with, is in
Taper and have antisitic defect structure proximally and distally, antisitic defect structure outer profile and outer surface of tube body are smoothed
It crosses, the proximal end caliber of the antisitic defect structure is more than the distal end caliber of antisitic defect structure.
3. a kind of miniature multipole mapping catheter according to claim 2, which is characterized in that antisitic defect structure distal end
Head is set as circular arc camber.
4. a kind of miniature multipole mapping catheter according to claim 3, which is characterized in that the conduit off working state
Under, the extension line and the outer contour convergence of antisitic defect structure of the tapered profiles of the tube body outer to outside tube body front end.
5. a kind of miniature multipole mapping catheter according to claim 4, which is characterized in that the antisitic defect structure is elasticity
Body simultaneously can be along itself tensile and compress.
6. a kind of miniature multipole mapping catheter according to claim 5, which is characterized in that the lining core is remote from the tube body
End head is pierced by and extends to the antisitic defect inside configuration, and is finally connected with the head of antisitic defect structure free end.
7. a kind of miniature multipole mapping catheter according to claim 6, which is characterized in that be arranged between the tube body and lining core
There is braiding layer, the electrode cable is as braid in the braiding layer.
8. a kind of miniature multipole mapping catheter according to claim 7, which is characterized in that the electrode is set successively along tube body
It sets in outer surface of tube body, the position of its own adjacent connection electrode of the electrode cable enters the braiding layer.
9. a kind of miniature multipole mapping catheter according to claim 8, which is characterized in that the lining core and the braiding layer
Between be provided with insulating layer.
10. a kind of miniature multipole mapping catheter according to claim 9, which is characterized in that the insulating layer includes poly-
Acid imide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007497.3A CN108272450A (en) | 2017-01-05 | 2017-01-05 | A kind of miniature multipole mapping catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007497.3A CN108272450A (en) | 2017-01-05 | 2017-01-05 | A kind of miniature multipole mapping catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108272450A true CN108272450A (en) | 2018-07-13 |
Family
ID=62800527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710007497.3A Pending CN108272450A (en) | 2017-01-05 | 2017-01-05 | A kind of miniature multipole mapping catheter |
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| Country | Link |
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| CN (1) | CN108272450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575249A (en) * | 2019-09-30 | 2019-12-17 | 科塞尔医疗科技（苏州）有限公司 | Electrophysiology catheter and preparation method thereof |
| CN112294429A (en) * | 2020-09-17 | 2021-02-02 | 杭州堃博生物科技有限公司 | Electric knife |
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| CN102551705A (en) * | 2012-01-19 | 2012-07-11 | 赖珩莉 | Auricular tachycardia mapping catheter and preparation method thereof |
| CN102579037A (en) * | 2012-01-19 | 2012-07-18 | 洪浪 | Coronary vein mapping catheter and preparation method thereof |
| CN203263377U (en) * | 2013-05-21 | 2013-11-06 | 陈绍良 | Expansion type cardiovascular piezometry catheter |
| CN105960259A (en) * | 2014-02-03 | 2016-09-21 | 美帝诺有限公司 | Catheter tip assembled with a spring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188975A (en) * | 2002-11-01 | 2008-05-28 | 康曼德内窥镜技术公司 | Low profile short tapered tip catheter |
| US20070270679A1 (en) * | 2006-05-17 | 2007-11-22 | Duy Nguyen | Deflectable variable radius catheters |
| CN102274018A (en) * | 2011-05-23 | 2011-12-14 | 成正辉 | Fast-switching and mapping catheter, and preparation method and application method thereof |
| CN102551705A (en) * | 2012-01-19 | 2012-07-11 | 赖珩莉 | Auricular tachycardia mapping catheter and preparation method thereof |
| CN102579037A (en) * | 2012-01-19 | 2012-07-18 | 洪浪 | Coronary vein mapping catheter and preparation method thereof |
| CN203263377U (en) * | 2013-05-21 | 2013-11-06 | 陈绍良 | Expansion type cardiovascular piezometry catheter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575249A (en) * | 2019-09-30 | 2019-12-17 | 科塞尔医疗科技（苏州）有限公司 | Electrophysiology catheter and preparation method thereof |
| CN110575249B (en) * | 2019-09-30 | 2021-03-02 | 科塞尔医疗科技（苏州）有限公司 | Electrophysiology catheter and preparation method thereof |
| CN112294429A (en) * | 2020-09-17 | 2021-02-02 | 杭州堃博生物科技有限公司 | Electric knife |
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Application publication date: 20180713 |