CN104873265A - Freezing ablation system - Google Patents
Freezing ablation system Download PDFInfo
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- CN104873265A CN104873265A CN201510305925.1A CN201510305925A CN104873265A CN 104873265 A CN104873265 A CN 104873265A CN 201510305925 A CN201510305925 A CN 201510305925A CN 104873265 A CN104873265 A CN 104873265A
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- frozen liquid
- electrode
- cryoablation
- pipe
- cryoablation system
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Abstract
The invention discloses a freezing ablation system which comprises a main unit and low-temperature ablation terminal equipment. The main unit is used for controlling and providing frozen liquid, and the low-temperature ablation terminal equipment is used for carrying out freezing ablation operation by the aid of the frozen liquid provided by the main unit.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, more precisely a kind of Cryoablation system.
Background technology
Melting is the common measures taken for the treatment of atrial fibrillation, and its principle creates one or more ablation line in heart tissue, causes tissue necrosis, cut off abnormal electrical signal conduction, the invention provides a kind of freezing ablation system, for the treatment of atrial fibrillation.
Summary of the invention
The object of this invention is to provide a kind of Cryoablation system, to kill part heart tissue by the mode of freezing, block abnormal electrical signal transfer.
The invention provides a kind of Cryoablation system, this Cryoablation system comprises: the main frame controlling and provide frozen liquid; The frozen liquid provided with utilizing main frame carries out the cryogenic ablation terminal unit of cryoablation operation.
Alternatively, described main frame comprises: provide the feeding pipe of frozen liquid and reclaim the reclaim line of fluid; Described cryogenic ablation terminal unit comprises: the hands handle of hollow; The sleeve pipe of the hollow be connected with described handle; Be positioned at described cryogenic ablation terminal unit far-end, with described cover pipe joint, the electrode of hollow; The inside of described handle, sleeve pipe, electrode forms a cavity; Comprise in described cavity: receive from the next frozen liquid of described feeding pipe and frozen liquid supplied the air inlet pipe entered in described electrode; And the escape pipe being connected with described reclaim line, the frozen liquid in described electrode is discharged.
Alternatively, the structure of described electrode and described cover pipe joint is that described electrode can be shunk back and entered the tube-in-tube structure of described sleeve pipe.
Alternatively, the front end of described air inlet pipe is connected with syringe, and described syringe has injection orifice.
Alternatively, described feeding pipe comprises: the air accumulator storing frozen liquid; Control the hand-operated valve of frozen liquid flow; Detect the pressure transducer of frozen liquid pressure; The electromagnetic valve of conducting and disconnection according to the pressure size of frozen liquid; By the pressure regulator valve of the Stress control of frozen liquid in preset range.
Alternatively, described cryogenic ablation terminal unit comprises the thermocouple of the temperature of mapping ablation tissue.
Alternatively, described reclaim line comprises: control the electromagnetic valve of frozen liquid outflow and meet noise reduction, the deafener of requirement.
Alternatively, there is the branch road for discharging frozen liquid between described feeding pipe and described reclaim line; Described branch road comprises air bleeding valve.
Alternatively, outside described air accumulator, there is heating tape.
Alternatively, described sleeve pipe is made up of polyester material.
Alternatively, sleeve pipe and/or handle are provided with heat insulation layer.
Alternatively, be provided with gas exchanger in handle, described feeding pipe is connected respectively by described gas exchanger with escape pipe with air inlet pipe, described reclaim line.
Alternatively, the smooth outer surface of electrode or be provided with lines, the head end of electrode is passivity.
Alternatively, the material of electrode is can the plastic material of heat conduction.
Alternatively, the head end of electrode interior is provided with turn.
Alternatively, described syringe is medical metal material.
Advantage of the present invention is simple to operate, little to the damage of human body.
Accompanying drawing explanation
Fig. 1 is cryoablation main frame of the present invention;
Fig. 2 is cryoablation electrode;
Fig. 3 is electrode interior.
Reference numeral is as follows.1: air accumulator; 2: hand-operated valve; 3,10: pressure transducer; 4,8,11: electromagnetic valve; 5: pressure regulator valve; 6: thermocouple; 7: cryogenic ablation pen; 9: deafener; 12: manual exhaust valve; 13: heating tape; 14: electrode; 15: sleeve pipe; 16: hands handle; 17: air inlet pipe; 18 escape pipes; 19: spring; 20: injection orifice; 21: syringe.
Detailed description of the invention
A kind of Cryoablation system of the present invention comprises main frame, cryoablation electrode.Main frame exports the frozen liquid of high pressure, frozen liquid is transported to syringe inside through carrier pipe, there is injection orifice on syringe surface, frozen liquid absorbs heat in electrode inner chamber rapid expansion, make organizing freezing and melting of surrounding them, the thermocouple of electrode head end can feed back the temperature of tissue in time, and operator determine whether continue freezing or stop according to feedback.
Specifically, Cryoablation system of the present invention comprises: the main frame controlling and provide frozen liquid; The frozen liquid provided with utilizing main frame carries out the cryogenic ablation terminal unit of cryoablation operation.
Described main frame can comprise: provide the feeding pipe of frozen liquid and reclaim the reclaim line of fluid; Described cryogenic ablation terminal unit comprises: the hands handle of hollow; The sleeve pipe of the hollow be connected with described handle; Be positioned at described cryogenic ablation terminal unit far-end, with described cover pipe joint, the electrode of hollow; The inside of described handle, sleeve pipe, electrode forms a cavity; Comprise in described cavity: receive from the next frozen liquid of described feeding pipe and frozen liquid supplied the air inlet pipe entered in described electrode; And the escape pipe being connected with described reclaim line, the frozen liquid in described electrode is discharged.
The structure of described electrode and described cover pipe joint can enter the tube-in-tube structure of described sleeve pipe for described electrode can be shunk back.
The front end of described air inlet pipe can be connected with syringe, and described syringe has injection orifice.
Described feeding pipe can comprise: the air accumulator storing frozen liquid; Control the hand-operated valve of frozen liquid flow; Detect the pressure transducer of frozen liquid pressure; The electromagnetic valve of conducting and disconnection according to the pressure size of frozen liquid; By the pressure regulator valve of the Stress control of frozen liquid in preset range.
Described cryogenic ablation terminal unit can comprise the thermocouple of the temperature of mapping ablation tissue.
Described reclaim line can comprise: control electromagnetic valve that frozen liquid flows out and meet the deafener that noise reduction requires.
The branch road for discharging frozen liquid can be had between described feeding pipe and described reclaim line; Described branch road comprises air bleeding valve.
Heating tape can be had outside described air accumulator.
Described sleeve pipe can be made up of polyester material, recommendation Merlon.
Sleeve pipe and/or handle can be provided with heat insulation layer.
Can be provided with gas exchanger in handle, described feeding pipe is connected respectively by described gas exchanger with escape pipe with air inlet pipe, described reclaim line.
The outer surface of electrode can be smooth or be provided with lines, and the head end of electrode is passivity, is recommended as circle or oval geometric configuration.
The material of electrode can be can the plastic material of heat conduction, the geometry of the flexible one-tenth demand of electrode, recommendation aluminium alloy or titanium alloy material.
The head end of electrode interior can be provided with turn.
Described syringe can be medical metal material, such as medical stainless steel, Nitinol.
Embodiment 1
See Fig. 1, frozen gas is derived by air accumulator 1, flows to main body pipeline through hand-operated valve 2.Pressure transducer 3 detected gas pressure as pressure control feedback element, when air pressure meets system operating conditions, electromagnetic valve 4 conducting.By regulating pressure regulator valve 5 that air pressure can be made to control within the specific limits, the gas pressure flowing to cryogenic ablation pen 7 is kept relative stability, simultaneously the branch road set up of pressure transducer 10, electromagnetic valve 11 is for auxiliary adjustment system working pressure.Cryogenic ablation terminal unit, namely melts pen 7 herein, for setting up ablation line at target cardiac tissue.Reference numeral 6 is thermocouples, the temperature of mapping ablation tissue.
Flow out the gas melting pen 7 to be discharged through electromagnetic valve 8 and deafener 9, and the requirement of noise reduction should be met.The branch road at manual exhaust valve 12 place is used for the intrasystem cryogenic gas of manual discharge line.Heating tape 13 is for heating source of the gas.Operator manual adjustments (pedal) can adjust the pressure of output, when melt complete need to thaw time, start heater, herein i.e. heating tape 13.
Fig. 2 is the structural representation melting pen 7.Wherein the material of metal electrode 14 is medical metal material, such as medical stainless steel, Nickel-titanium alloy for medical purpose, can bend to required shape according to the position of melting; Label 15 is sleeve pipe, and electrode 14 is therein scalable, has protective effect to electrode 14; Label 16 is handle, and its material can be engineering plastics, and its head end is connected with sleeve pipe 15; Label 17 is air inlet pipe, and the gases at high pressure of main frame enter electrode 14 (see Fig. 3, explained in detail later) from air inlet pipe 17 through syringe 21 and injection orifice 20; Label 18 is escape pipe, and the gases at high pressure in electrode are back to main frame complete refrigeration after expanding after.
Fig. 3 is the schematic internal view of electrode 14.Electrode 14 is the good metal cavity structure of heat conduction, and inner head end is spring 19, can prevent metallic cavity inelastic deformation.Label 21 is syringe, is connected with air inlet pipe 17, and gases at high pressure are expelled in the cavity of metal electrode 14 through injection orifice 20, swelling heat absorption, thus carry out freezing to the tissue around electrode 14.Syringe can be one or more, and injection orifice is not less than three, is evenly distributed on around syringe.
Claims (16)
1. a Cryoablation system, is characterized in that, this Cryoablation system comprises: the main frame controlling and provide frozen liquid; The frozen liquid provided with utilizing main frame carries out the cryogenic ablation terminal unit of cryoablation operation.
2. Cryoablation system according to claim 1, is characterized in that, described main frame comprises: provide the feeding pipe of frozen liquid and reclaim the reclaim line of fluid; Described cryogenic ablation terminal unit comprises: the hands handle of hollow; The sleeve pipe of the hollow be connected with described handle; Be positioned at described cryogenic ablation terminal unit far-end, with described cover pipe joint, the electrode of hollow; The inside of described handle, sleeve pipe, electrode forms a cavity; Comprise in described cavity: receive from the next frozen liquid of described feeding pipe and frozen liquid supplied the air inlet pipe entered in described electrode; And the escape pipe being connected with described reclaim line, the frozen liquid in described electrode is discharged.
3. Cryoablation system according to claim 2, is characterized in that, the structure of described electrode and described cover pipe joint is that described electrode can be shunk back and entered the tube-in-tube structure of described sleeve pipe.
4. Cryoablation system according to claim 2, is characterized in that, the front end of described air inlet pipe is connected with syringe, and described syringe has injection orifice.
5. Cryoablation system according to claim 2, is characterized in that, described feeding pipe comprises: the air accumulator storing frozen liquid; Control the hand-operated valve of frozen liquid flow; Detect the pressure transducer of frozen liquid pressure; The electromagnetic valve of conducting and disconnection according to the pressure size of frozen liquid; By the pressure regulator valve of the Stress control of frozen liquid in preset range.
6. Cryoablation system according to claim 2, is characterized in that, described cryogenic ablation terminal unit comprises the thermocouple of the temperature of mapping ablation tissue.
7. Cryoablation system according to claim 2, is characterized in that, described reclaim line comprises: control electromagnetic valve that frozen liquid flows out and meet the deafener that noise reduction requires.
8. Cryoablation system according to claim 2, is characterized in that, has the branch road for discharging frozen liquid between described feeding pipe and described reclaim line; Described branch road comprises air bleeding valve.
9. Cryoablation system according to claim 5, is characterized in that, has heating tape outside described air accumulator.
10. Cryoablation system according to claim 2, is characterized in that, described sleeve pipe is made up of polyester material.
11. Cryoablation systems according to claim 2, is characterized in that, sleeve pipe and/or handle are provided with heat insulation layer.
12. Cryoablation systems according to claim 2, is characterized in that, be provided with gas exchanger in handle, and described feeding pipe is connected respectively by described gas exchanger with escape pipe with air inlet pipe, described reclaim line.
13. Cryoablation systems according to claim 2, is characterized in that, the smooth outer surface of electrode or be provided with lines, and the head end of electrode is passivity.
14. Cryoablation systems according to claim 2, is characterized in that, the material of electrode is can the plastic material of heat conduction.
15. Cryoablation systems according to claim 2, is characterized in that, the head end of electrode interior is provided with turn.
16. Cryoablation systems according to claim 4, is characterized in that, described syringe is medical metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305925.1A CN104873265A (en) | 2015-06-02 | 2015-06-02 | Freezing ablation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305925.1A CN104873265A (en) | 2015-06-02 | 2015-06-02 | Freezing ablation system |
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| CN104873265A true CN104873265A (en) | 2015-09-02 |
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| CN201510305925.1A Pending CN104873265A (en) | 2015-06-02 | 2015-06-02 | Freezing ablation system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105411665A (en) * | 2015-12-11 | 2016-03-23 | 北京阳光易帮医疗科技有限公司 | Cryosurgery system |
| CN107951558A (en) * | 2017-11-10 | 2018-04-24 | 上海导向医疗系统有限公司 | The Cryoablation system of multifunctional gas pipeline control |
| CN108472067A (en) * | 2016-02-01 | 2018-08-31 | 美敦力 | For N2The recovery system of O |
| CN109009406A (en) * | 2018-07-23 | 2018-12-18 | 山前（珠海）医疗科技有限公司 | A kind of freeze melting device and cryoablation method |
| CN109199570A (en) * | 2017-06-29 | 2019-01-15 | 四川锦江电子科技有限公司 | A kind of interpolar cryoablation conduit |
| WO2020020035A1 (en) * | 2018-07-23 | 2020-01-30 | 山前（珠海）科技有限公司 | Freezing equipment |
| CN111671512A (en) * | 2020-06-18 | 2020-09-18 | 沈阳鹏悦科技有限公司 | Freezing electricity blocking system |
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| CN203341811U (en) * | 2013-06-28 | 2013-12-18 | 上海微创电生理医疗科技有限公司 | Cold saline perfusion ablation catheter system |
| CN204192738U (en) * | 2014-10-29 | 2015-03-11 | 常承忠 | The radio-frequency ablation electrode of bronchial wall temperature can be monitored |
| CN204797984U (en) * | 2015-06-02 | 2015-11-25 | 北京迈迪顶峰医疗科技有限公司 | Freezing system that melts |
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2015
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| US6468268B1 (en) * | 1999-01-25 | 2002-10-22 | Cryocath Technologies Inc. | Cryogenic catheter system |
| US20030220634A1 (en) * | 2000-08-09 | 2003-11-27 | Ryba Eric L. | Refrigeration source for a cryoablation catheter |
| US20030149428A1 (en) * | 2002-02-01 | 2003-08-07 | Eric Ryba | Non-charging pre-cooling system |
| CN102083382A (en) * | 2008-06-12 | 2011-06-01 | 爱尔伯电子医疗设备有限公司 | Cryosurgical device for operating cryoprobes, method for operating a cryoprobe |
| CN102413785A (en) * | 2009-04-30 | 2012-04-11 | 克莱米迪克斯有限责任公司 | Cryoablation system having docking station for charging cryogen containers and related method |
| CN103025377A (en) * | 2010-07-28 | 2013-04-03 | 美敦力 | Endoluminal ablation cryoballoon and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105411665A (en) * | 2015-12-11 | 2016-03-23 | 北京阳光易帮医疗科技有限公司 | Cryosurgery system |
| CN105411665B (en) * | 2015-12-11 | 2017-12-12 | 北京阳光易帮医疗科技有限公司 | A kind of cryosurgery system |
| CN108472067A (en) * | 2016-02-01 | 2018-08-31 | 美敦力 | For N2The recovery system of O |
| CN108472067B (en) * | 2016-02-01 | 2021-09-03 | 美敦力快凯欣有限合伙企业 | For N2O recovery system |
| CN109199570A (en) * | 2017-06-29 | 2019-01-15 | 四川锦江电子科技有限公司 | A kind of interpolar cryoablation conduit |
| CN107951558A (en) * | 2017-11-10 | 2018-04-24 | 上海导向医疗系统有限公司 | The Cryoablation system of multifunctional gas pipeline control |
| CN109009406A (en) * | 2018-07-23 | 2018-12-18 | 山前（珠海）医疗科技有限公司 | A kind of freeze melting device and cryoablation method |
| WO2020020035A1 (en) * | 2018-07-23 | 2020-01-30 | 山前（珠海）科技有限公司 | Freezing equipment |
| WO2020019362A1 (en) * | 2018-07-23 | 2020-01-30 | 山前（珠海）医疗科技有限公司 | Cryoablation device and method |
| CN111671512A (en) * | 2020-06-18 | 2020-09-18 | 沈阳鹏悦科技有限公司 | Freezing electricity blocking system |
| CN111671512B (en) * | 2020-06-18 | 2024-02-09 | 沈阳鹏悦科技有限公司 | Freezing electricity blocking system |
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Application publication date: 20150902 |
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