CN109419551A - A kind of device for casting for RF ablation - Google Patents
A kind of device for casting for RF ablation Download PDFInfo
- Publication number
- CN109419551A CN109419551A CN201710786808.0A CN201710786808A CN109419551A CN 109419551 A CN109419551 A CN 109419551A CN 201710786808 A CN201710786808 A CN 201710786808A CN 109419551 A CN109419551 A CN 109419551A
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- speed
- peristaltic pump
- positive
- casting
- control module
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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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
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- Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a kind of device for casting for RF ablation comprising: perfusion absorption conduit, positive peristaltic pump, reversed peristaltic pump and control module；Wherein, positive peristaltic pump, one end are connect with perfusate container, and the other end is connect by intrusion pipe with perfusion absorption conduit；Reversed peristaltic pump, one end are connect by recovery tube with perfusion absorption conduit, and the other end is connect with liquid waste treating apparatus；Control module, make positive peristaltic pump with First Speed and first direction operating perfusion liquid is input to the arrival end that conduit is adsorbed in perfusion by positive motor driver, extracts reversed peristaltic pump the perfusion liquid at the outlet end for adsorbing conduit will be perfused out with second speed and second direction operating by reverse motor driving device.The device for casting can make ablating electrode be adsorbed onto tissue surface, realize accurate ablation, and can in time extract perfusion liquid out, improve radio frequency curative effect and radio-frequency region.
Description
Technical field
The present invention relates to radio-frequency ablation technique field more particularly to a kind of device for casting for RF ablation.
Background technique
Charge pump is a kind of finger-like peristaltic pump, and charge pump is used together with open irrigated ablation catheters with heart radiofrequency melting instrument,
When heart radiofrequency melting instrument is melted by open irrigated ablation catheters output RF energy, charge pump is set in open irrigated ablation catheters
Physiological saline is nearby perfused in the ablating electrode set, and reduces the temperature of ablating electrode and surrounding myocardium tissue.This perfusion physiology salt
The RF ablation mode of the cooling ablating electrode of water, can reduce the probability of happening of ablation tissue incrustation or adhesion, moreover it is possible to which increase disappears
Melt the depth and area for damaging tissue.But although open irrigated ablation catheters used in the technology can reach in need for the treatment of
Lesion tissue position, but due to being difficult to solve the problems, such as that reclining for lesion tissue position and electrode be not close, lead to ablation
It is not thorough, the excessive perfusion physiological saline of conventional perfusion conduit, aggravates kidney burden in addition.
Authorization Notice No. is that the Chinese invention patent of CN206239500U discloses a kind of cold ion that SAPMAC method is perfused is self
Recycle cluster radio ablation system, SAPMAC method pump entrance be connected with the outlet end of tap water, the arrival end of tap water with
The SAPMAC method liquids recovery pipeline of radio frequency needle is connected, and the outlet of SAPMAC method pump is connected with radio frequency needle.It is dropped using SAPMAC method
Electrode temperatures increase heat transfer to improve radio frequency curative effect and radio-frequency region.However, although the program can be realized fast prompt drop
The temperature of low ablating electrode and surrounding tissue, but still recline that not close, ablation is not thorough there are lesion tissue position and electrode
Bottom and kidney the problems such as over-burden.
Summary of the invention
An object of the present invention at least that, for how to overcome the above-mentioned problems of the prior art, provide one kind
For the device for casting of RF ablation, ablating electrode can be made to be adsorbed onto tissue surface, realize accurate ablation, and can and
When perfusion liquid is extracted out, improve radio frequency curative effect and radio-frequency region.
To achieve the goals above, the technical solution adopted by the present invention includes following aspects.
A kind of device for casting for RF ablation comprising: perfusion absorption conduit, positive peristaltic pump, reversed peristaltic pump,
And control module；
Wherein, positive peristaltic pump, one end are connect with perfusate container, and the other end is connected by intrusion pipe and perfusion absorption conduit
It connects；
Reversed peristaltic pump, one end are connect by recovery tube with perfusion absorption conduit, and the other end is connect with liquid waste treating apparatus；
Control module makes positive peristaltic pump with First Speed and first direction operating to incite somebody to action by positive motor driver
Perfusion liquid is input to the arrival end of perfusion absorption conduit, make reversed peristaltic pump with second speed by reverse motor driving device and
Second direction operating will be will be perfused the perfusion liquid extraction at absorption conduit outlet end.
Preferably, the First Speed is greater than the diameter of intrusion pipe greater than the diameter of second speed and/or recovery tube.
Preferably, the first direction is opposite with second direction.
Preferably, the device for casting further comprises pressure sensor, is arranged in intrusion pipe and will test
Pressure signal is sent to control module；Control module is used to calculate pressure value according to pressure signal and exceeds default model in pressure value
When enclosing, positive peristaltic pump is operated with third speed by positive motor driver, and/or pass through reverse motor driving device
Operate reversed peristaltic pump with fourth speed.
Preferably, the device for casting further comprises air bubble sensor, and setting is in perfusion absorption conduit and will examine
The bubble signals measured are sent to control module；Control module is used to calculate number of bubbles according to bubble signals and in number of bubbles
When beyond preset range, positive peristaltic pump is operated with third speed by positive motor driver, and/or pass through reversed electricity
Machine actuating device operates reversed peristaltic pump with fourth speed.
Preferably, the device for casting further comprises multiple temperature sensors, and entering for perfusion absorption conduit is arranged in
Mouthful end and outlet end and the temperature signal that will test is sent to control module；Control module is used to calculate temperature according to temperature signal
Angle value and temperature value exceed preset range when, operate positive peristaltic pump with third speed by positive motor driver,
And/or operate reversed peristaltic pump with fourth speed by reverse motor driving device.
Preferably, the third speed is greater than First Speed and/or fourth speed is less than second speed, by pressure value
It adjusts in default range；Also, when not reaching the preset range of pressure value within the preset time, control module control control
Stop is only perfused and generates corresponding alarm signal.
Preferably, the third speed be greater than First Speed and fourth speed be greater than second speed with improve rate of flooding from
And temperature value is adjusted into default range；Also, when not reaching the preset range of temperature value within the preset time, control
Molding block control control stops being perfused and generates corresponding alarm signal.
Preferably, the device for casting further comprises operation panel, for positive peristaltic pump and reversed peristaltic pump to be arranged
Running speed and direction, and show filling capacity and recycling capacity.
Preferably, the device for casting further comprises warning device, in pressure value, temperature value or number of bubbles
Sending sound, light or electric alarm signal when one of amount or more persons exceed preset range；When continuing beyond preset range
When time is greater than preset time, control module control stops perfusion.
In conclusion by adopting the above-described technical solution, the present invention at least has the advantages that
The fluid perfusion speed in intrusion pipe and recovery tube is controlled respectively by two-way motor control assembly, guarantees recovery tube
Withdrawn fluid speed is greater than intrusion pipe and inputs fluid velocity, and negative pressure is formed between ablating electrode and lesion tissue, makes ablation electricity
Pole is adsorbed onto tissue surface, to realize accurate ablation；Pass through recovery tube and its corresponding reversed peristaltic pump in time for perfusion liquid
Extraction can quickly reduce the temperature of ablating electrode and surrounding tissue while reducing kidney burden, to improve radio frequency treatment
Effect and radio-frequency region.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device for casting according to an embodiment of the invention for RF ablation.
Fig. 2 is the structural schematic diagram of the device for casting according to another embodiment of the present invention for RF ablation.
Fig. 3 is the structural schematic diagram of the device for casting for RF ablation of another embodiment according to the present invention.
Fig. 4 is the structural schematic diagram of the device for casting for RF ablation of another embodiment according to the present invention.
Specific embodiment
With reference to the accompanying drawings and embodiments, the present invention will be described in further detail, so that the purpose of the present invention, technology
Scheme and advantage are more clearly understood.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
As shown in Figure 1, the device for casting according to an embodiment of the invention for RF ablation includes: that perfusion absorption is led
Pipe, positive peristaltic pump, reversed peristaltic pump and control module.
Wherein, positive peristaltic pump, one end are connect with perfusate container, and the other end is connected by intrusion pipe and perfusion absorption conduit
It connects；Reversed peristaltic pump, one end are connect by recovery tube with perfusion absorption conduit, and the other end is connect with liquid waste treating apparatus.
Control module makes positive peristaltic pump with First Speed and first direction operating to incite somebody to action by positive motor driver
Perfusion liquid is input to the arrival end of perfusion absorption conduit, make reversed peristaltic pump with second speed by reverse motor driving device and
Second direction operating will be will be perfused the perfusion liquid extraction at absorption conduit outlet end.
Two charge pumps (i.e. positive peristaltic pump and reversed peristaltic pump) are respectively by two-way motor driver in control mould
Fluid perfusion speed under the control of block in adjusting intrusion pipe and recovery tube, so that First Speed is less than second speed, first party
To with second direction on the contrary, guarantee recovery tube withdrawn fluid speed be greater than intrusion pipe input fluid velocity, relative to ablating electrode
Negative pressure is formed between lesion tissue, ablating electrode is made to be adsorbed onto tissue surface, and the effect that reclines is more preferable.
As shown in Fig. 2, the device for casting according to another embodiment of the present invention for RF ablation, further comprises pressure
Force snesor, the pressure signal that being arranged in intrusion pipe and will test are sent to control module；Control module is used for basis
Pressure signal calculate pressure value and pressure value exceed preset range when, by positive motor driver make positive peristaltic pump with
Third speed operating, and/or reversed peristaltic pump is operated with fourth speed by reverse motor driving device.Wherein, by making
Third speed is greater than First Speed and/or fourth speed is less than second speed even zero and adjusts pressure value to preset
In range.Also, when not reaching the preset range of pressure value within the preset time, it can further stop filling process
And generate corresponding alarm signal.
In the embodiment, perfusion liquid uses physiological saline, and pressure sensor uses pressure transducer, intrusion pipe and recovery tube
Rubber tube can be used, and the diameter of recovery tube can be greater than the diameter of intrusion pipe.Intrusion pipe one end connects bag of saline, separately
One end is connected to pressure transducer monitoring pressure in real time, and the perfusion of perfusion absorption conduit is attached to by pressure transducer delivery outlet
Pipe carries out perfusion of saline to tissue；Recovery tube one end connection perfusion absorption conduit, the other end are connected to liquid waste treating apparatus.
Two-way perfusion path is driven by positive peristaltic pump and reversed peristaltic pump respectively, and control module controls motor driven dress
It sets, motor driver controls the motor operating of positive peristaltic pump and reversed peristaltic pump, and motor operating drives vermiculator by wanting
Wriggling is sought, to control the rate of flooding and flow direction of perfusion liquid in intrusion pipe.The corresponding motor rotation direction in path is perfused in two-way
On the contrary, salt water flows through ablating electrode and lesion tissue surface by the water outlet port of intrusion pipe, and is pumped by recovery tube, by
It is greater than intrusion pipe in the extraction salt velocity of recovery tube and inputs salt velocity, it is ensured that makes conduit absorption organizationally, to reach
Better ablation effect.
In a preferred embodiment, device for casting further comprises operation panel, can be controlled perfusion flow velocity, and show
Show real-time monitoring perfusion saline capacity, the capacity being perfused, recycling the data such as capacity.
As shown in figure 3, the device for casting for RF ablation of another embodiment according to the present invention, further comprises gas
Sensor is steeped, the bubble signals that being arranged in perfusion absorption conduit and will test are sent to control module；Control module is used
According to bubble signals calculating number of bubbles and when number of bubbles exceeds preset range, made just by positive motor driver
It is operated to peristaltic pump with third speed, and/or operates reversed peristaltic pump with fourth speed by reverse motor driving device；Its
In, make third speed less than First Speed and fourth speed is less than second speed, by reducing rate of flooding thus by number of bubbles
Amount is adjusted into default range.Also, when not reaching the preset range of number of bubbles within the preset time, Ke Yijin
One step stops filling process and generates corresponding alarm signal.Device for casting further includes operation panel, for positive wriggling to be arranged
The running speed and direction of pump and reversed peristaltic pump, and show filling capacity and recycling capacity
As shown in figure 4, the device for casting for RF ablation of another embodiment according to the present invention, further comprises more
A temperature sensor, is arranged in the arrival end that absorption conduit is perfused and outlet end and the temperature signal that will test is sent to control
Molding block；Control module is used to calculate temperature value according to temperature signal and when temperature value exceeds preset range, passes through positive electricity
Machine actuating device operates positive peristaltic pump with third speed, and/or by reverse motor driving device make reversed peristaltic pump with
Fourth speed operating.Wherein, third speed is greater than First Speed and fourth speed is greater than second speed, by improving rate of flooding
Adjusting temperature value into default range.Also, when not reaching the preset range of temperature value within the preset time,
Filling process can further be stopped and generate corresponding alarm signal.
Also, the device for casting can also include warning device, in pressure value, temperature value or number of bubbles
One of or more persons sending sound, light or electric alarm signal when exceeding preset range, and stop being perfused, to avoid dangerous feelings
The generation of condition.
The above, the only detailed description of the specific embodiment of the invention, rather than limitation of the present invention.The relevant technologies
The technical staff in field is not in the case where departing from principle and range of the invention, various replacements, modification and the improvement made
It should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of device for casting for RF ablation, which is characterized in that the device for casting includes: perfusion absorption conduit, just
To peristaltic pump, reversed peristaltic pump and control module；
Wherein, positive peristaltic pump, one end are connect with perfusate container, and the other end is connect by intrusion pipe with perfusion absorption conduit；
Reversed peristaltic pump, one end are connect by recovery tube with perfusion absorption conduit, and the other end is connect with liquid waste treating apparatus；
Control module makes positive peristaltic pump with First Speed and first direction operating will be perfused by positive motor driver
Liquid is input to the arrival end of perfusion absorption conduit, makes reversed peristaltic pump with second speed and second by reverse motor driving device
Direction operating will be will be perfused the perfusion liquid extraction at absorption conduit outlet end.
2. device for casting according to claim 1, which is characterized in that the First Speed is greater than second speed, and/or returns
The diameter of closed tube is greater than the diameter of intrusion pipe.
3. device for casting according to claim 1, which is characterized in that the first direction is opposite with second direction.
4. device for casting according to claim 1, which is characterized in that the device for casting further comprises pressure sensing
Device, the pressure signal that being arranged in intrusion pipe and will test are sent to control module；Control module according to pressure for believing
Number calculate pressure value and pressure value exceed preset range when, by positive motor driver make positive peristaltic pump with third speed
Degree operating, and/or reversed peristaltic pump is operated with fourth speed by reverse motor driving device.
5. device for casting according to claim 4, which is characterized in that the device for casting further comprises bubble sensing
Device, the bubble signals that being arranged in perfusion absorption conduit and will test are sent to control module；Control module is used for basis
Bubble signals calculate number of bubbles and when number of bubbles exceed preset range, make positive wriggling by positive motor driver
Pump is operated with third speed, and/or operates reversed peristaltic pump with fourth speed by reverse motor driving device.
6. device for casting according to claim 1, which is characterized in that the device for casting further comprises that multiple temperature pass
Sensor, is arranged in the arrival end that absorption conduit is perfused and outlet end and the temperature signal that will test is sent to control module；
Control module is used to calculate temperature value according to temperature signal and when temperature value exceeds preset range, is filled by positive motor driven
Setting operates positive peristaltic pump with third speed, and/or makes reversed peristaltic pump with fourth speed by reverse motor driving device
Operating.
7. device for casting according to claim 4, which is characterized in that the third speed is greater than First Speed and/or the
Four speed are less than second speed, and pressure value is adjusted into default range；Also, pressure is not reached within the preset time
When the preset range of force value, control module control control stops being perfused and generates corresponding alarm signal.
8. device for casting according to claim 6, which is characterized in that the third speed is greater than First Speed and four-speed
Degree is greater than second speed to improve rate of flooding to adjust temperature value into default range；Also, in the preset time
When not reaching the preset range of temperature value inside, control module control control stops being perfused and generates corresponding alarm signal.
9. the device for casting according to any one of claim 4 to 6, which is characterized in that the device for casting further wraps
Operation panel is included, for running speed and the direction of positive peristaltic pump and reversed peristaltic pump to be arranged, and filling capacity is shown and returns
Receiving amount.
10. the device for casting according to any one of claim 4 to 6, which is characterized in that the device for casting further wraps
Warning device is included, for issuing when one of pressure value, temperature value or number of bubbles or more persons exceed preset range
Sound, light or electric alarm signal；When the duration beyond preset range being greater than preset time, control module control stops filling
Note.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786808.0A CN109419551A (en) | 2017-09-04 | 2017-09-04 | A kind of device for casting for RF ablation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786808.0A CN109419551A (en) | 2017-09-04 | 2017-09-04 | A kind of device for casting for RF ablation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109419551A true CN109419551A (en) | 2019-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710786808.0A Pending CN109419551A (en) | 2017-09-04 | 2017-09-04 | A kind of device for casting for RF ablation |
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| Country | Link |
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| CN (1) | CN109419551A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110638491A (en) * | 2019-09-24 | 2020-01-03 | 廉宇 | Medical intracavity pressure and temperature measurement and control intelligent perfusion/suction system |
| WO2022141686A1 (en) * | 2020-12-31 | 2022-07-07 | 杭州堃博生物科技有限公司 | Multi-path perfusion control method and apparatus for injection pump, and injection pump and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5348554A (en) * | 1992-12-01 | 1994-09-20 | Cardiac Pathways Corporation | Catheter for RF ablation with cooled electrode |
| US20110178513A1 (en) * | 2010-01-21 | 2011-07-21 | CreamOptee Industries Inc. | Method and device for internal tissue removal |
| CN103767744A (en) * | 2014-01-28 | 2014-05-07 | 宋乐明 | Medical injection and attraction platform |
| CN103892902A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Perfusion absorption catheter |
| CN106137379A (en) * | 2015-03-26 | 2016-11-23 | 四川锦江电子科技有限公司 | Charge pump, the control method of charge pump and device |
-
2017
- 2017-09-04 CN CN201710786808.0A patent/CN109419551A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5348554A (en) * | 1992-12-01 | 1994-09-20 | Cardiac Pathways Corporation | Catheter for RF ablation with cooled electrode |
| US20110178513A1 (en) * | 2010-01-21 | 2011-07-21 | CreamOptee Industries Inc. | Method and device for internal tissue removal |
| CN103892902A (en) * | 2012-12-27 | 2014-07-02 | 四川锦江电子科技有限公司 | Perfusion absorption catheter |
| CN103767744A (en) * | 2014-01-28 | 2014-05-07 | 宋乐明 | Medical injection and attraction platform |
| CN106137379A (en) * | 2015-03-26 | 2016-11-23 | 四川锦江电子科技有限公司 | Charge pump, the control method of charge pump and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110638491A (en) * | 2019-09-24 | 2020-01-03 | 廉宇 | Medical intracavity pressure and temperature measurement and control intelligent perfusion/suction system |
| WO2022141686A1 (en) * | 2020-12-31 | 2022-07-07 | 杭州堃博生物科技有限公司 | Multi-path perfusion control method and apparatus for injection pump, and injection pump and storage medium |
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Application publication date: 20190305 |
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