CN106606373B - A kind of ablation catheter of accurate dynamometry - Google Patents
A kind of ablation catheter of accurate dynamometry Download PDFInfo
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- CN106606373B CN106606373B CN201610771149.9A CN201610771149A CN106606373B CN 106606373 B CN106606373 B CN 106606373B CN 201610771149 A CN201610771149 A CN 201610771149A CN 106606373 B CN106606373 B CN 106606373B
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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
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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
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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
- A61B5/287—Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
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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
- 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
- A61B2018/00589—Coagulation
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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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
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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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00791—Temperature
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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
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1407—Loop
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Abstract
The present invention relates to ablation catheter field, in particular to a kind of ablation catheter of accurate dynamometry comprising: tube body, be provided on tube body intrusion pipe and it is several have distal ports for mapping or the electrode of ablation, tube body, be distal end tube body；Elastomer；End electrodes, end electrodes are connect with the free end of distal end tube body by elastomer；Being partitioned into partial region by engraved structure on elastomer is non-stress area, other regions are then force area on elastomer, when the end electrodes forced belt dynamic elasticity bodily form becomes, deformation occurs in non-stress area, deformation occurs for force area, it is mounted at least one pressure sensor in force area and non-stress area, and structure lower the purpose of the present invention is to provide a kind of pair of equipment requirement is simple, manufacturing cost is relatively low, has temperature compensation function, the ablation catheter of the accurate dynamometry of the accuracy of raising pressure measurement.
Description
Technical field
The present invention relates to ablation catheter field, in particular to a kind of ablation catheter of accurate dynamometry.
Background technique
Arrhythmia cordis is common one of the disease of arrhythmia cordis in the world, and clinically application catheter has carried out radio-frequency ablation procedure
It is widely used in treating such disease.The position and surrounding myocardium that RF energy passes through conduit to electrode and electrode contact
Tissue is to melt.Only disappear under the conditions of the contact pressure of the electrode of distal end of catheter and cardiac muscular tissue is suitable by clinic confirmation
Melt and can be only achieved preferable therapeutic effect.It is to insert the catheter into heart, and make distal end of catheter and the heart in ablation catheter treatment
Dirty inner wall contact, in the process it is generally important that making the good contact wall of the heart in the distal end of conduit and determining correct
Recline direction and position, and otherwise, excessive pressure or the incorrect position that reclines may cause to the worthless damage of heart tissue
Wound, or even heart wall perforation, at the same it is similarly most important to the accurate positioning of conduit.
Existing technology is that the pressure that reclines of distal end with tissue is measured using electromagnetism or optical technology, to equipment requirement
Higher and complicated, manufacturing cost is also relatively high.
Carry out sensing tube using the sensor of magnetic induction as mentioned being added in the catheter in Chinese patent CN103908337AZ
The contact force of distal end and organ, this sensor are distorted vulnerable to the interference of external magnetic field in the application, and the technology needs
Multiple Magnetic Sensor technology difficulties are installed big in the minimum space of catheter distal tip, to increase manufacturing cost.
In Development of Modern Science, also there is consideration to measure pressure using strain gauge merely, but itself is by temperature shadow
It rings greatly, therefore does not have the catheter pressure using strain gauge mode so far；
Meanwhile the simple conduit positioned using electricity is difficult to accurately determine catheter position.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, it is lower to provide a kind of pair of equipment requirement
And structure is simple, manufacturing cost is relatively low, has temperature compensation function, the accurate dynamometry of the accuracy of raising pressure measurement
Ablation catheter.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of ablation catheter of accurate dynamometry comprising:
Tube body is provided with intrusion pipe on the tube body and several has for mapping or the electrode of ablation, the tube body
Distal ports are distal end tube body；
Elastomer；
End electrodes, the end electrodes are connect with the free end of the distal end tube body by the elastomer；
Being partitioned into partial region by engraved structure on the elastomer is non-stress area, other regions are then on elastomer
Force area, when the end electrodes stress drives the elastomer deformation, deformation occurs in the non-stress area, force area hair
At least one pressure sensor is mounted in raw deformation, the force area and non-stress area.
It is respectively set by the way that the force area and non-stress area are arranged on elastomer, then on force area and non-stress area
At least one pressure sensor, the pressure sensor in non-stress area is for measuring pressure value caused by temperature, then stress
The pressure value that pressure sensor in area measures subtracts the pressure value that the pressure sensor on force area measures to get to accurately
Pressure suffered by elastomer has carried out temperature-compensating；
Concrete principle is the pressure sensor that a pressure sensor for being affixed on force area is attached to non-stress area with another
Cooperation, force area pressure sensor numerical value are the sum that stress numerical value influences numerical value plus temperature, the pressure sensor in non-stress area
The only numerical value that influences of temperature, because 2 pressure sensors are all disposed on elastomer, apart from close, therefore 2 temperature will
It is that height is consistent, then force area pressure sensor numerical value is subtracted to the pressure sensor numerical value in non-stress area, as pressure passes
The true dynamometry numerical value of sensor, the accuracy for having temperature compensation function, improving pressure measurement；
And it is compared to the pressure that reclines that distal end with tissue are measured using electromagnetism or optical technology, to equipment requirement
Lower and structure is simple, manufacturing cost is relatively low.
As a preferred solution of the present invention, the elastomer surrounding is provided with flexible pipe body, and flexible pipe body both ends connect respectively
It connects and seamlessly transits in end electrodes and distal end tube body, the setting of flexible pipe body can be effectively to elastomer and pressure sensing
Device is protected, and improves service life and guarantee dynamometry precision.
As a preferred solution of the present invention, several mappings or the electrode of ablation of being used for are ring electrode, mapping on the tube body
Or the effect of ablation is more preferable.
As a preferred solution of the present invention, it is provided with temperature sensor in the end electrodes, for detecting end electrodes
The situation that tissue around temperature is melted with Real-time Feedback.
As a preferred solution of the present invention, it is fixedly installed at least inside the distal end tube body, elastomer or end electrodes
Magnetic field generator outside the Magnetic Sensor that two axis are not parallel to each other, Magnetic Sensor and conduit is used cooperatively, Magnetic Sensor
Specific position and direction can be detected in magnetic field, the Magnetic Sensor that two axis are not parallel to each other then can be accurate
Determine the position and direction of conduit.
As a preferred solution of the present invention, the elastomer is tubular type, the non-stress area and force area circumferentially between
Every setting, structure is simpler, and processing cost is low, and the deformation of non-stress area and force area is more controllable on elastomer, also more
Facilitate the corresponding pressure sensor of setting, it is also more acurrate to the effect of measurement.
As a preferred solution of the present invention, the pressure sensor is symmetrically disposed in elastomer two sides, pressure sensor
It is symmetrically distributed, the value that pressure sensor reflects when perception stretches and compresses can regard a vector as, have direction
Property (having positive and negative), the value in the corresponding different sensors of the pressure for keeping different directions different has uniqueness.
Measuring pressure and direction is obtained using statistics lookup table mode, is measured first when known various pressure are with various directions
The different numerical value group of pressure sensor is measured, obtained corresponding relationship is organized into database purchase in a device, is being applied
When searched in the database according to equipment according to the pressure sensor numerical value detected, according to uniqueness, one or a set of pressure
Sensor values can only find a corresponding power in the database and direction is matching, then pressure sensor is symmetrically arranged
Pressure and direction effectively can be calculated according to measurement result.
As a preferred solution of the present invention, the pressure sensor successively circumferentially arranged, adjacent non-stress area
Be arranged at least one pressure sensor on force area and be classified as into one group, the pressure sensor with group passes through the temperature
The mode of compensation measures accurately pressure value, and successively circumferentially then to have pressure sensor more for arranged for pressure sensor
Group forms multiple groups accurately pressure value, then cooperates the sensor values in above-mentioned database, can effectively calculate elastomer institute
By pressure and direction suffered by pressure and direction and distal end tube body or end electrodes.
As a preferred solution of the present invention, the engraved structure is U-type groove, and structure is simpler, easy to process, while also just
In being symmetrically circumferentially arranged, change elastomer 7 by ambient pressure more significant.
As a preferred solution of the present invention, the U-type groove is circumferentially arranged in around elastomer, and setting direction and elasticity
Body axis forms an angle, and is compared to U-type groove setting direction and elastomer axially parallel situation, this programme elastomer
Deformation range is bigger, entire conduit and distal catheter and end electrodes it is more adaptable.
Compared with prior art, beneficial effects of the present invention:
And structure lower to equipment requirement is simple, manufacturing cost is relatively low, have temperature compensation function, improves pressure
The accuracy of measurement.
Detailed description of the invention:
Fig. 1 is conduit application schematic diagram in embodiment 1；
Fig. 2 is distal end of catheter schematic diagram in embodiment 1；
Fig. 3 is distal end of catheter schematic internal view in embodiment 1；
Fig. 4 is distal end of catheter cross-sectional view in embodiment 1；
Fig. 5 is pressure sensor illustration in embodiment 1；
Fig. 6 is distal end of catheter overall schematic in embodiment 1；
Fig. 7 is conduit integrally bending schematic diagram in embodiment 1；
Fig. 8 is 1 elastomer schematic diagram of embodiment；
Fig. 9 is 1 elastomer force area of embodiment and non-stress area schematic diagram；
Figure 10 is that pressure sensor is fitted in the schematic diagram on elastomer in embodiment 1；
Marked in the figure: 1. end electrodes, 2. ring electrode A, 3. ring electrode B, 4. ring electrode C, 5. distal end tube bodies, 6. is flexible
Tube body, 7. elastomers, 8. intrusion pipes, 9. pressure sensors, 101. Magnetic Sensor A, 102. Magnetic Sensor B, 11. ends electricity
Pole fill orifice, 12. cardiac muscular tissues, 21. annular electrode D, 22. annular electrode E, 71. elastomer non-stress areas, 72. elastomers by
Power area, 73.U type groove.
Specific embodiment
Below with reference to embodiment and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
Such as Fig. 1-10, (Fig. 1 is the conduit application schematic diagram, on distal catheter 5 for a kind of ablation catheter of accurate dynamometry
End electrodes 1 recline cardiac muscular tissue 12 when, 1 opposite proximal end conduit 5 of end electrodes bends, and 7 part of elastomer becomes
Shape) comprising:
Tube body is provided with intrusion pipe 8 on the tube body and several has for mapping or the electrode of ablation, the tube body
Distal ports are distal end tube body 5；
End electrodes 1, the end electrodes 1 are connect with the free end of the distal end tube body 5 by the elastomer 7, institute
It states and is provided with temperature sensor in end electrodes 1, multiple end electrodes fill orifices 11, end electrodes are disposed in end electrodes 1
Fill orifice 11 is connected to intrusion pipe 8, for liquid to be perfused in ablation；
Elastomer 7(is in making end electrodes 1 that can be back to nature after removing the pressure), 7 surrounding of elastomer is set
It is equipped with flexible pipe body 6(such as Fig. 2,4,6 material of flexible pipe body can be made of the relatively soft material of PVC or other), 6 liang of flexible pipe body
End is separately connected and seamlessly transits in end electrodes 1 and distal end tube body 5.
By engraved structure, (engraved structure is U-type groove 73, and elastomer U-type groove 73 is also used simultaneously on the elastomer 7
In the elasticity of elasticity and entirety in the axial direction for increasing elastomer 7, change elastomer 7 by ambient pressure more significant, this
7 material of embodiment elastomer is stainless steel either high resiliency nickel-titanium alloy material) to be partitioned into partial region be non-stress area
71, other regions are then force area 72 on elastomer 7, when 1 stress of end electrodes drives 7 deformation of elastomer, institute
Stating non-stress area 71, deformation occurs, and deformation occurs for force area 72, be mounted in the force area 72 and non-stress area 71 to
A few pressure sensor 9.
On the tube body several electrodes for mapping or ablation be ring electrode (specifically include ring electrode A2, ring electrode B3,
Ring electrode C4, annular electrode D21, annular electrode E22, such as Fig. 2,6, be disposed on distal end tube body 5 ring electrode A2, ring electrode B3,
Ring electrode C4 is placed in inside distal end tube body 5, such as Fig. 7, annular electrode D21, annular electrode for ablation or mapping, intrusion pipe 8
E22 is arranged in tube body deflection section, and when deflecting section bending, annular electrode D21 and annular electrode E22 and end electrodes 1 pass through 3
Point determines the bending direction of tube body at face principle).
At least two axis are fixedly installed with inside the distal end tube body 5, elastomer 7 or end electrodes 1 not to be parallel to each other
Magnetic Sensor (specifically include Magnetic Sensor A101, Magnetic Sensor B102, Magnetic Sensor 101, Magnetic Sensor 102 are set as phase
Certain is kept to position and there are certain angle (0 ° -70 °), is magnetic in Magnetic Sensor 101,102 the present embodiment of Magnetic Sensor
Coil, each Magnetic Sensor can determine it in spatial position, as shown in Fig. 4,10, magnetic field hair are provided with outside Magnetic Sensor
Raw device, magnetic field generator can emit multiple magnetic fields, can generate induced current on Magnetic Sensor, through conducting wire feedback into controller
Handled to obtain Magnetic Sensor in the position in magnetic field, a magnetic field of radiation is a plane spatially, magnetic sensing
Induced electricity flow valuve size can determine that the position of the Magnetic Sensor on this plane, multiple magnetic fields, that is, multiple flat to device on this plane
Face, which crosses, can determine that Magnetic Sensor spatially specific location, when 2 or more Magnetic Sensors 101, Magnetic Sensor 102 are solid
Determine relative position and angle, 2 space coordinate is regarded as a new coordinate (x1, y1, z1, x2, y2, z2), when tube body rotates
When this coordinate there is uniqueness, therefore can accurately determine position and the rotational angle of conduit, enable conduit in ablation more
Add the direction that reclines accurately found lesion tissue and melt head end).
The elastomer 7 is tubular type, and the non-stress area 71 and force area 72 are circumferentially spaced setting, and the pressure passes
Sensor 9 is symmetrically disposed in 7 two sides of elastomer, specifically, the successively circumferentially arranged of the pressure sensor 9, adjacent
It is arranged at least one pressure sensor 9 in non-stress area 71 and force area 72 and is classified as into one group, 73 circumferential direction of U-type groove
Ground is arranged around elastomer 7, and setting direction and 7 axis of elastomer form an angle, and U-type groove 73 is 3, as Fig. 3,8,9,
10, elastomer 7 is divided for 3 non-stress areas 71 and 3 force area 72, and successively interval setting, places 6 pressures on elastomer 7
9,6 pressure sensors 9 of force snesor are arranged circumferentially in the same level axially vertical with elastomer 7, wherein 3 pressure
Sensor 9 is affixed on the pressure sensor 9 of force area 72,3 and is affixed on totally three groups of non-stress area 73(), 2 adjacent pressure sensors 9
It is one group, the pressure sensor 9 that a pressure sensor 9 for being affixed on force area 72 is attached to non-stress area 73 with another will carry out
Form half-bridge, be used for temperature-compensating, enable conduit precise measurement recline tissue pressure and interfered from ambient temperature, it is specific former
The pressure sensor 9 that the pressure sensor 9 that reason is affixed on force area 72 for one is attached to non-stress area 73 with another forms half-bridge
Afterwards, 72 pressure sensor of force area, 9 numerical value is the sum that stress numerical value influences numerical value plus temperature, the pressure sensing in non-stress area 73
Device 9 is only the numerical value that temperature influences, because 2 pressure sensors 9 are circumferentially upper and adjacent in the same level of elastomer 7,
The temperature of the two will be that height is consistent, then 72 pressure sensor of force area, 9 numerical value is subtracted to the pressure sensing in non-stress area 73
In addition 9 numerical value of device, the as true dynamometry numerical value of pressure sensor 9 similarly will acquire other 2 stress numerical value for 2 groups.
Meanwhile such as Fig. 9,10,6 pressure sensors 9 are that symmetrically (9 structure of pressure sensor is specific on elastomer 7
It such as Fig. 5, is made of inside pressure sensor 91 group of wire grid, the wire grid is varistor its resistance value when it is by external force
It will change therewith).6 pressure sensors 9 are symmetrically distributed, while pressure sensor 9 is when perception stretches and compresses
The value of reflection can regard a vector as, have directionality (having positive and negative), and the pressure for keeping different directions different is three groups corresponding
Value on sensor has uniqueness.
Measuring pressure and direction is obtained using statistics lookup table mode, is measured first when known various pressure are with various directions
It measures the different numerical value group of pressure sensor (numerical value of 3 groups of pressure sensors 9 has positive and negative), obtained corresponding relationship is whole
Manage into database purchase in a device, application when according to equipment according to 9 numerical value of pressure sensor detected in the database
It searches, according to uniqueness, one group of 9 numerical value of pressure sensor can only find a corresponding power and direction therewith in the database
Match, then pressure sensor 9, which is symmetrically arranged, effectively to calculate pressure and direction according to measurement result.
Claims (10)
1. a kind of ablation catheter of accurate dynamometry comprising:
Tube body is provided with intrusion pipe on the tube body and several for mapping or the electrode of ablation, the tube body have distal end
Section is distal end tube body；
Elastomer；
End electrodes, the end electrodes are connect with the free end of the distal end tube body by the elastomer；
It is characterized in that,
Being partitioned into partial region by engraved structure on the elastomer is non-stress area, other regions are then stress on elastomer
Area, when the end electrodes stress drives the elastomer deformation, deformation occurs in the non-stress area, and shape occurs for force area
Become, be mounted at least one pressure sensor in the force area and non-stress area, in adjacent non-stress area and force area
It is arranged at least one pressure sensor and is classified as into one group.
2. a kind of ablation catheter of accurate dynamometry according to claim 1, which is characterized in that the elastomer surrounding setting
Flexible tube body, flexible pipe body both ends are separately connected and seamlessly transit in end electrodes and distal end tube body.
3. a kind of ablation catheter of accurate dynamometry according to claim 1, which is characterized in that several on the tube body to be used for
Mapping or the electrode of ablation are ring electrode.
4. a kind of ablation catheter of accurate dynamometry according to claim 1, which is characterized in that be arranged in the end electrodes
There is temperature sensor.
5. a kind of ablation catheter of accurate dynamometry according to any one of claims 1-4, which is characterized in that the distal end
The Magnetic Sensor that at least two axis are not parallel to each other is fixedly installed with inside tube body, elastomer or end electrodes.
6. a kind of ablation catheter of accurate dynamometry according to claim 5, which is characterized in that the elastomer is round tube
Type, the non-stress area and force area are circumferentially spaced setting.
7. a kind of ablation catheter of accurate dynamometry according to claim 6, which is characterized in that the pressure sensor is symmetrical
Ground is arranged in elastomer two sides.
8. a kind of ablation catheter of accurate dynamometry according to claim 7, which is characterized in that the pressure sensor is successively
Circumferentially arranged.
9. a kind of ablation catheter of accurate dynamometry according to claim 8, which is characterized in that the engraved structure is U-shaped
Slot.
10. a kind of ablation catheter of accurate dynamometry according to claim 9, which is characterized in that the U-type groove is circumferentially set
It sets around elastomer, and setting direction and elastic body axis form an angle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771149.9A CN106606373B (en) | 2016-08-30 | 2016-08-30 | A kind of ablation catheter of accurate dynamometry |
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|---|---|---|---|
| CN201610771149.9A CN106606373B (en) | 2016-08-30 | 2016-08-30 | A kind of ablation catheter of accurate dynamometry |
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| CN106606373B true CN106606373B (en) | 2019-02-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143481A (en) * | 2016-12-02 | 2018-06-12 | 四川锦江电子科技有限公司 | A kind of ablation catheter and the ablating device for including this conduit |
| CN109141697B (en) | 2017-06-15 | 2020-04-10 | 上海微创电生理医疗科技股份有限公司 | Strain gauge, pressure sensor and interventional medical catheter |
| CN111001075B (en) * | 2019-12-24 | 2022-01-28 | 四川锦江电子科技有限公司 | Catheter with form and position display and method thereof |
| CN112197687B (en) * | 2020-09-27 | 2022-04-05 | 四川锦江电子科技有限公司 | Strain gauge for catheter |
| CN114271924B (en) * | 2020-09-27 | 2024-03-01 | 四川锦江电子医疗器械科技股份有限公司 | Catheter calibration method and device based on grid partition |
| CN114832201B (en) * | 2022-03-15 | 2023-09-01 | 介入科技发展(深圳)有限公司 | Catheter and system capable of identifying blood vessel direction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014145139A1 (en) * | 2013-03-15 | 2014-09-18 | St. Jude Medical, Cardiology Division, Inc. | Force-sensing ablation catheter |
| CN203915066U (en) * | 2014-06-06 | 2014-11-05 | 乐普（北京）医疗器械股份有限公司 | A kind of medical catheter head end that can measuring pressure |
| CN204744408U (en) * | 2015-06-30 | 2015-11-11 | 四川锦江电子科技有限公司 | Melt device with pressure detection |
| CN105232141A (en) * | 2015-09-30 | 2016-01-13 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9333033B2 (en) * | 2013-07-11 | 2016-05-10 | Biosense Webster (Israel) Ltd. | Detection of ablation electrode contact with tissue |
-
2016
- 2016-08-30 CN CN201610771149.9A patent/CN106606373B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014145139A1 (en) * | 2013-03-15 | 2014-09-18 | St. Jude Medical, Cardiology Division, Inc. | Force-sensing ablation catheter |
| CN203915066U (en) * | 2014-06-06 | 2014-11-05 | 乐普（北京）医疗器械股份有限公司 | A kind of medical catheter head end that can measuring pressure |
| CN204744408U (en) * | 2015-06-30 | 2015-11-11 | 四川锦江电子科技有限公司 | Melt device with pressure detection |
| CN105232141A (en) * | 2015-09-30 | 2016-01-13 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
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Address after: No. 5, Wuke East 3rd Road, Wuhou District, Chengdu, Sichuan 610000 Patentee after: Sichuan Jinjiang Electronic Medical Device Technology Co.,Ltd. Address before: No.5, Wuke East 3rd road, Wuhou Science Park, Chengdu hi tech Industrial Development Zone, Sichuan 610045 Patentee before: SICHUAN JINJIANG ELECTRONIC SCIENCE AND TECHNOLOGY Co.,Ltd. |