CN111643187A - Condenser pipe leak protection device for laser surgery based on conductance monitoring closed-loop feedback control - Google Patents
Condenser pipe leak protection device for laser surgery based on conductance monitoring closed-loop feedback control Download PDFInfo
- Publication number
- CN111643187A CN111643187A CN202010567852.4A CN202010567852A CN111643187A CN 111643187 A CN111643187 A CN 111643187A CN 202010567852 A CN202010567852 A CN 202010567852A CN 111643187 A CN111643187 A CN 111643187A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- closed
- inner sleeve
- cooling medium
- conductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000002430 laser surgery Methods 0.000 title claims abstract description 15
- 239000002826 coolant Substances 0.000 claims abstract description 36
- 239000013307 optical fiber Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000009833 condensation Methods 0.000 claims abstract description 9
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 238000010992 reflux Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 12
- 239000008213 purified water Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 2
- 229910052594 sapphire Inorganic materials 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 238000000608 laser ablation Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 206010028980 Neoplasm Diseases 0.000 description 5
- 238000002679 ablation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002572 peristaltic effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- -1 but not limited to Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Images
Classifications
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
-
- 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
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
-
- 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
- A61B2018/00642—Sensing and controlling the application of energy with feedback, i.e. closed loop control
-
- 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
- A61B2018/00875—Resistance or impedance
-
- 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
- A61B2018/00898—Alarms or notifications created in response to an abnormal condition
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Laser Surgery Devices (AREA)
Abstract
The invention discloses a condensation tube leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control, which comprises an external sleeve, an internal sleeve, a circulating pipeline, a light guide optical fiber, a supporting piece and a conductance sensor, wherein the external sleeve is connected with the internal sleeve; the inner sleeve is positioned inside the outer sleeve, and an interlayer is formed between the inner sleeve and the outer sleeve; the inner sleeve is filled with conductive liquid; the light guide optical fiber is arranged in the inner sleeve, the far end of the light guide optical fiber penetrates out of the far end of the inner sleeve, and the near end of the light guide optical fiber is positioned in the near end of the inner sleeve; a supporting piece is arranged between the external sleeve and the internal sleeve, the supporting piece divides the interlayer into two communicated parts and forms a reflux cavity in the near end of the external sleeve; the distal end of the external sleeve is provided with a cooling medium outlet and a cooling medium inlet, and the cooling medium outlet, the cooling medium inlet and the reflux cavity are communicated to form a circulating pipeline; and a conductivity sensor is arranged at the cooling medium outlet. The device can simply and timely prevent the external casing pipe from being burnt by overhigh temperature and prevent the tissue from being coked.
Description
Technical Field
The invention relates to medical instruments, in particular to a condensation tube leakage-proof device for a laser operation based on conductance monitoring closed-loop feedback control.
Technical Field
Hyperthermia can kill tissue, resulting in irreversible damage. For example, the thermal ablation technique is used to kill cancer cells, but the effect of thermal treatment of tumors is not satisfactory due to the development of the thermal technique and medical engineering. In recent years, optical fibers and medical engineering are greatly developed, so that the optical fibers can accurately and directly reach focuses, and cancer cells are killed by laser heating. Laser ablation techniques typically use a high power laser light transmitted through an optical fiber into the tissue to be ablated. For example, chinese patent publication No. CN206403856U discloses a laser ablation puncture needle with a temperature measuring device. Specifically, the laser ablation puncture needle comprises a needle rod, a needle seat, a needle core and a temperature measuring device; the needle rod is fixedly connected with the needle seat; the needle core is positioned in the needle rod, and the laser fiber can be arranged in the needle rod after the needle core is pulled out so as to emit laser to ablate tumors or lumps; the needle rod is also provided with a channel for the temperature measuring device to move, and the temperature measuring device is positioned in the channel and freely enters and exits the channel; when the laser ablation puncture needle is in a first state, the temperature measuring device extends out of the side wall of the needle rod from the channel and enters the inside of a human body, and the temperature around the ablation focus is detected in real time when the laser ablation puncture needle is in an ablation state; when the laser ablation puncture needle is in the second state, the temperature measuring device retracts into the channel. Chinese patent publication No. CN108836477A discloses a laser hyperthermia device and system based on magnetic resonance guidance, comprising: the system comprises a workstation, a laser ablation device and a minimally invasive surgery optical fiber assembly; the workstation is used for generating an operation scheme according to a preoperative lesion digital image of a patient, sending the operation scheme to the laser ablation equipment, fusing and generating a real-time temperature image of a lesion area by using a magnetic resonance temperature imaging technology in an operation, and regulating and controlling laser power and cooling power in real time according to temperature values of a lesion and surrounding healthy tissues; the laser ablation equipment is used for generating and regulating laser and driving and controlling the circulation of the cooling interstitial substance; the minimally invasive surgery optical fiber component utilizes laser and cooling medium to perform precise conformal ablation on regular or irregular tumors in disease treatment and cool the surgery component and peripheral tissues.
One of the major factors affecting the therapeutic effect of laser ablation techniques is temperature. Therefore, the tissue temperature needs to be controlled, and the transmission optical fiber and the ablation tissue around the fiber can be burnt by too fast and too high temperature rise. Too low a temperature does not achieve a therapeutic effect. Therefore, the temperature, the energy and the cooling device need to be monitored in real time during the treatment process so as to achieve the optimal curative effect. The cooling is usually achieved by a closed loop of condensed liquid or gas at the proximal end of the fiber. And when the temperature is too high, the circulating condensed liquid or gas can be leaked due to the breakage of the sealed pipeline, thereby causing serious consequences. However, when the temperature is monitored by the magnetic resonance temperature imaging technology, the time delay of several seconds is generated, and the real-time temperature monitoring cannot be really realized; when temperature sensors are used for thermometry control, magnetic resonance imaging may be affected and the volume of the cannula may be increased. Therefore, how to avoid the rupture of the pipe filled with the cooling medium due to too high temperature is a technical problem to be solved in the field at present.
Disclosure of Invention
The invention aims to provide a leakage-proof device for a condensing tube for laser operation, which is used for conducting monitoring and closed-loop feedback control, and can simply and timely prevent an external sleeve from being burnt and tissues from being coked due to overhigh temperature.
The purpose of the invention is realized by the following technical scheme:
a condenser pipe leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control is characterized in that the condenser pipe leakage-proof device comprises an external sleeve, an internal sleeve, a circulating pipeline, a light guide optical fiber, a supporting piece and a conductance sensor; the diameter of the inner sleeve is smaller than the inner diameter of the outer sleeve, the inner sleeve is positioned inside the outer sleeve, and an interlayer is formed between the inner sleeve and the outer sleeve; the inner sleeve is filled with conductive liquid; the diameter of the light guide optical fiber is smaller than the inner diameter of the inner sleeve and is arranged in the inner sleeve, and the near end of the light guide optical fiber is positioned in the near end of the inner sleeve; a supporting piece is arranged between the outer sleeve and the inner sleeve, the supporting piece divides the interlayer into two communicated parts and forms a reflux cavity in the near end of the outer sleeve; a cooling medium outlet and a cooling medium inlet are formed in the far end of the external sleeve, and the cooling medium outlet, the cooling medium inlet and the backflow cavity are communicated to form a circulating pipeline; and a conductivity sensor is arranged at the cooling medium outlet.
In the present invention, proximal "refers to the end near the tissue, and distal" refers to the end away from the tissue.
Wherein the outer side of the support member abuts the inner side of the outer sleeve and the inner side of the support member abuts the outer side of the inner sleeve. The inner sleeve is a closed tube cavity, and the proximal end of the light guide optical fiber is sealed in the inner sleeve. The conductive liquid is sealed within the inner sleeve without damage to the inner sleeve. And a conductance detection chamber is arranged at the cooling medium outlet, and the conductance sensor is positioned in the detection chamber.
Preferably, the outer sleeve proximal end is a quartz material or a sapphire material. Wherein, the whole outer sleeve can be made of quartz material.
Preferably, the device further comprises a fixed base, and the distal end of the light guide fiber, the distal end of the outer sleeve and the distal end of the inner sleeve are fixedly connected to the fixed base through a screw locking device.
Preferably, the inner sleeve is made of a pyrolytic material, and when the optical fiber exceeds a set working temperature, the pyrolytic material decomposes to release the conductive liquid in the inner sleeve. Further preferably, the material of the inner sleeve includes, but is not limited to, medical PC material.
Preferably, the liquid cooling medium is purified water.
Preferably, the inner casing is filled with a conductive fluid including, but not limited to, saline at a concentration of 20% or more. Further preferably, the conductive liquid is saturated concentration brine.
Preferably, the supporting member is in the shape of a straight line.
Preferably, the cooling medium outlet and the cooling medium inlet are located on both sides of the support member.
Preferably, the purified water is passed through the circulation line at once.
More preferably, the purified water circulates in the circulation line.
Preferably, the cooling medium inlet is provided with a conductivity sensor. A conductance detection chamber is arranged at the inlet of the cooling medium, and a conductance sensor is positioned in the conductance detection chamber. When the cooling medium outlet and the cooling medium inlet are both provided with the conductance sensors, the difference value of the data acquired by the two conductance sensors can be used for calibrating the conductance value.
The conductivity sensor is externally connected to an external closed-loop control circuit through a connecting lead.
The far end of the light guide optical fiber penetrates out of the far end of the inner sleeve and then is connected to a laser, and the laser is opened and closed through an external closed-loop control circuit.
The cooling medium outlet and the cooling medium inlet are connected to a fluid driving device, and the fluid driving device is opened and closed through an external closed-loop control circuit. The fluid drive device may be a peristaltic pump.
Preferably, the external closed-loop control circuit is connected to a control terminal (such as a mobile terminal of a computer, a mobile phone, etc.), and the control terminal controls the opening and closing of the peristaltic pump and the laser according to data of the conductance sensor transmitted by the external closed-loop control circuit.
Compared with the prior art, the invention has the advantages that:
the invention controls the laser by adding the inner sleeve outside the light guide optical fiber, filling the inner sleeve with conductive liquid and arranging the conductive sensor: when the light guide optical fiber exceeds the working temperature, the inner sleeve is decomposed to release the inner conductive liquid, the conductivity sensor detects the conductivity change to stop the laser working, thereby effectively and timely preventing the outer sleeve from being burnt by overhigh temperature and tissue coking.
Drawings
FIG. 1 is a schematic view of a part of a leak preventer for a condensation duct provided in example 1;
FIG. 2 is a schematic view showing a part of the leak preventer of the condensation duct according to example 1;
FIG. 3 is a schematic view showing a part of the leak preventer for a condensation duct according to example 2;
fig. 4 is a schematic view of the overall structure of the leak preventer for condensation pipes according to embodiment 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.
To more clearly describe the structure of the condenser tube of the present invention, the terms "proximal" and "distal" are defined herein, which terms are conventional in the field of interventional medical devices. Specifically, "proximal" refers to the end near the tissue, and "distal" refers to the end away from the tissue.
Example 1
As shown in fig. 1, the condensation tube leakage prevention device for laser surgery based on conductance monitoring closed-loop feedback control provided by this embodiment includes an outer sleeve 1, an inner sleeve 2, a circulation pipeline 3, a light guide fiber 4, a support 5, a fixed base 6 and a conductance sensor 7.
The diameter of the inner casing 2 is smaller than the inner diameter of the outer casing 1, the inner casing 2 is positioned inside the outer casing 1, and an interlayer is formed between the inner casing 2 and the outer casing 1. The inner sleeve 2 is filled with a conductive liquid, and the conductive liquid is sealed in the inner sleeve 2 without damaging the inner sleeve 2.
The support 5 is located outside against the inside of the outer sleeve 1 and the support 5 is located inside against the outside of the inner sleeve 2. The support 5 divides the sandwich into two communicating parts and forms a flashback chamber 31 in the proximal end of the outer cannula 1. The far end of the external sleeve 1 is also provided with a water outlet 11 and a water inlet 12, the water outlet 11 is communicated with the water inlet 12 and the return cavity 31 to form a circulating pipeline 3 which is responsible for the inlet and outlet of the cooling medium.
The light guiding fiber 4 has a diameter smaller than the inner diameter of the inner tube 2 and is disposed inside the inner tube 2. The proximal end of the light-conducting fiber 4 is located within the proximal end of the inner sleeve 2. The inner sleeve 2 is a closed tube cavity, and the distal end of the light guide fiber 4 penetrates out from the distal end of the inner sleeve 2, namely the proximal end of the light guide fiber 4 is sealed in the inner sleeve 2. The water outlet 12 contains a conductance detection chamber, and the conductance sensor 7 is positioned in the detection chamber.
The far end of the light guide fiber 4, the far end of the outer sleeve 1 and the far end of the inner sleeve 1 are fixedly connected to the fixed base 6 through screw locking devices.
In this embodiment, the outer sleeve is made of quartz material, the inner sleeve is made of medical PC material, the cooling medium is purified water, and the conductive liquid is saturated saline.
In the present embodiment, the supporting member 5 is in a shape of a straight line, as shown in the view of the direction a in fig. 1 and 2.
In the present embodiment, the cooling medium passes through the circulation pipeline 3 once, as shown in fig. 2, the water inlet 12 and the water outlet 11 are respectively connected to a storage 121, 111 for storing and recovering purified water.
In the present embodiment, as shown in fig. 4, the conductivity sensor 7 is externally connected to the external closed-loop control circuit through a connecting wire; the far end of the light guide optical fiber 4 penetrates out of the far end of the inner sleeve 2 and then is connected to a laser, and the laser is opened and closed through an external closed-loop control circuit; the cooling medium outlet 11 and the cooling medium inlet 12 are connected to a peristaltic pump, and the peristaltic pump is opened and closed through an external closed-loop control circuit. When the temperature exceeds the set working temperature, the inner sleeve 2 is decomposed, and when the conductivity sensor detects the conductivity change, the external closed-loop control circuit transmits the conductivity change to the control end and controls the opening and closing of the peristaltic pump and the laser according to the indication of the control end.
Example 2
As shown in fig. 3, the storage container 111 of the water outlet 11 is provided with a temperature reducing device 1111, which is different from the device provided in embodiment 1. The reservoir 121 of the water inlet 12 is connected to the reservoir 111 of the water outlet 11 by a pipe. When the purified water flows into the storage 111 of the water outlet 11, the purified water is cooled by the cooling device 1111 and flows back into the storage 121 of the water inlet 12 through the conduit, so that the purified water circulates in the circulation line 3.
Example 3
In this embodiment, the difference from the apparatus provided in embodiment 1 is that there are two conductance detection chambers, which are respectively located at the water inlet 12 and the water outlet 11. The two conductivity sensors 7 are respectively positioned in the two conductivity detection chambers. The two conductivity sensors 7 are externally connected to an external closed-loop control circuit through connecting wires, and the external control circuit controls the laser according to data obtained by the two conductivity sensors 7. The difference in the data acquired by the two conductivity sensors 7 can be used to calibrate the conductivity values.
Finally, it should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, and any modifications, equivalents and improvements that are within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A condenser tube leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control is characterized by comprising an external sleeve, an internal sleeve, a circulating pipeline, a light guide optical fiber, a supporting piece and a conductance sensor; the diameter of the inner sleeve is smaller than the inner diameter of the outer sleeve, the inner sleeve is positioned inside the outer sleeve, and an interlayer is formed between the inner sleeve and the outer sleeve; the inner sleeve is filled with conductive liquid; the diameter of the light guide optical fiber is smaller than the inner diameter of the inner sleeve and is arranged in the inner sleeve, the far end of the light guide optical fiber penetrates out of the far end of the inner sleeve, and the near end of the light guide optical fiber is positioned in the near end of the inner sleeve; a supporting piece is arranged between the outer sleeve and the inner sleeve, the supporting piece divides the interlayer into two communicated parts and forms a reflux cavity in the near end of the outer sleeve; a cooling medium outlet and a cooling medium inlet are formed in the far end of the external sleeve, and the cooling medium outlet, the cooling medium inlet and the backflow cavity are communicated to form a circulating pipeline; and a conductivity sensor is arranged at the cooling medium outlet.
2. The leak protection device for a condenser tube used in laser surgery based on closed-loop feedback control of conductance monitoring as claimed in claim 1, wherein the proximal end of the outer sleeve is made of quartz material or sapphire material.
3. The leak protection device for a condensing tube for laser surgery based on closed-loop feedback control of conductivity monitoring as claimed in claim 1, wherein the inner sleeve is made of a pyrolytic material, and the decomposition occurs when the photoconductive fiber exceeds a set working temperature.
4. The leak protection device for a condensing tube for laser surgery based on closed-loop feedback control of conductance monitoring as claimed in claim 3, wherein the material of said inner sleeve includes but is not limited to medical PC material.
5. The leak protection device for a condenser tube for laser surgery based on closed-loop feedback control of conductance monitoring as claimed in claim 1, wherein said cooling medium is purified water.
6. The leak protection device for a condensing tube for laser surgery based on closed-loop feedback control of conductance monitoring of claim 1, wherein said conductive liquid includes but is not limited to saline with a concentration of 20% or more.
7. The leak protection device for a condensing tube for laser surgery based on closed-loop feedback control of conductance monitoring as claimed in claim 1, wherein a conductance sensor is provided at the inlet of the cooling medium.
8. The condenser tube leakage prevention device for laser surgery based on conductance monitoring closed-loop feedback control according to claim 1 or 7, wherein the conductance sensor is externally connected to an external closed-loop control circuit through a connecting wire.
9. The condensation tube leakage prevention device for laser surgery based on conductance monitoring closed-loop feedback control according to claim 8, wherein the distal end of the light guide fiber penetrates out of the distal end of the inner sleeve and is connected to a laser, and the laser is opened and closed through an external closed-loop control circuit.
10. The leak protection device for the condensation tube for laser surgery based on the conductance monitoring closed-loop feedback control as claimed in claim 8, wherein the cooling medium outlet and the cooling medium inlet are connected to a fluid driving device, and the fluid driving device is opened and closed through an external closed-loop control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567852.4A CN111643187B (en) | 2020-06-19 | 2020-06-19 | Condensing tube leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567852.4A CN111643187B (en) | 2020-06-19 | 2020-06-19 | Condensing tube leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111643187A true CN111643187A (en) | 2020-09-11 |
| CN111643187B CN111643187B (en) | 2024-10-18 |
Family
ID=72343760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010567852.4A Active CN111643187B (en) | 2020-06-19 | 2020-06-19 | Condensing tube leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111643187B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349590A (en) * | 1992-04-10 | 1994-09-20 | Premier Laser Systems, Inc. | Medical laser apparatus for delivering high power infrared light |
| US20030028114A1 (en) * | 1995-09-20 | 2003-02-06 | Texas Heart Institute | Method and apparatus for detecting vulnerable atherosclerotic plaque |
| US20100217360A1 (en) * | 2007-09-28 | 2010-08-26 | Clinical Laserthermia Systems Ab | Apparatus and methods for determining a property of a tissue |
| WO2011105631A1 (en) * | 2010-02-26 | 2011-09-01 | 学校法人慶應義塾 | Catheter performing photodynamic ablation of cardiac muscle tissue by photochemical reaction |
| CN204542357U (en) * | 2014-01-31 | 2015-08-12 | 康沣生物科技(上海)有限公司 | There is the cryoablation foley's tube of guidewire lumen |
| CN204814162U (en) * | 2014-12-30 | 2015-12-02 | 沈建平 | Acupunture needle type radio frequency electricity needle |
| CN208339565U (en) * | 2017-06-30 | 2019-01-08 | 微创心脉医疗科技（上海）有限公司 | Mechanical thrombus remove device |
| CN208713129U (en) * | 2018-08-08 | 2019-04-09 | 华安钢宝利高新汽车板加工(娄底)有限公司 | The protection system and laser ablation machine of laser head on laser ablation machine |
| CN212755875U (en) * | 2020-06-19 | 2021-03-23 | 杭州佳量医疗科技有限公司 | Condenser pipe leak-proof device for laser surgery based on conductance monitoring closed-loop feedback control |
-
2020
- 2020-06-19 CN CN202010567852.4A patent/CN111643187B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349590A (en) * | 1992-04-10 | 1994-09-20 | Premier Laser Systems, Inc. | Medical laser apparatus for delivering high power infrared light |
| US20030028114A1 (en) * | 1995-09-20 | 2003-02-06 | Texas Heart Institute | Method and apparatus for detecting vulnerable atherosclerotic plaque |
| US20100217360A1 (en) * | 2007-09-28 | 2010-08-26 | Clinical Laserthermia Systems Ab | Apparatus and methods for determining a property of a tissue |
| WO2011105631A1 (en) * | 2010-02-26 | 2011-09-01 | 学校法人慶應義塾 | Catheter performing photodynamic ablation of cardiac muscle tissue by photochemical reaction |
| CN204542357U (en) * | 2014-01-31 | 2015-08-12 | 康沣生物科技(上海)有限公司 | There is the cryoablation foley's tube of guidewire lumen |
| CN204814162U (en) * | 2014-12-30 | 2015-12-02 | 沈建平 | Acupunture needle type radio frequency electricity needle |
| CN208339565U (en) * | 2017-06-30 | 2019-01-08 | 微创心脉医疗科技（上海）有限公司 | Mechanical thrombus remove device |
| CN208713129U (en) * | 2018-08-08 | 2019-04-09 | 华安钢宝利高新汽车板加工(娄底)有限公司 | The protection system and laser ablation machine of laser head on laser ablation machine |
| CN212755875U (en) * | 2020-06-19 | 2021-03-23 | 杭州佳量医疗科技有限公司 | Condenser pipe leak-proof device for laser surgery based on conductance monitoring closed-loop feedback control |
Non-Patent Citations (2)
| Title |
|---|
| 曹鹏: "颈椎射频消融术后颈椎感染的翻修手术治疗", 《中国脊柱脊髓杂志》, vol. 28, no. 2, 28 February 2018 (2018-02-28), pages 130 - 135 * |
| 邹淑玲;黄秋艳;王玉芝;苑凯华;黄正;: "血管靶向激光的特征和应用", 《激光生物学报》, no. 05, 13 November 2018 (2018-11-13), pages 385 - 392 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111643187B (en) | 2024-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220071683A1 (en) | Medical system and method of use | |
| US20240081885A1 (en) | Vapor ablation systems and methods | |
| US10987150B2 (en) | Systems and methods for prostate treatment | |
| CN103747753B (en) | For the method and apparatus of ablation of tissue | |
| CN108836477B (en) | Laser thermotherapy device and system based on magnetic resonance guidance | |
| JP5260292B2 (en) | Surgical temperature control system for arthroscopic radiofrequency ablation | |
| ES2836781T3 (en) | Apparatus for cooling a volume of tissue during a thermal therapy treatment | |
| CN102027427B (en) | Thermocouple-controlled catheter cooling system | |
| US5169396A (en) | Method for interstitial laser therapy | |
| US20070167776A1 (en) | Method and apparatus for protecting the rectal wall during cryoablation | |
| CN105555215B (en) | Cold therapy system | |
| EP2549963B1 (en) | Systems for prostate treatment | |
| CN107205770A (en) | steam ablation system and method | |
| EP0865767A2 (en) | Apparatus and method for interstitial laser treatment | |
| JP2002200181A (en) | Laser treatment instrument | |
| CN103025258A (en) | Dual injection tube cryocatheter and method for using same | |
| CN212755875U (en) | Condenser pipe leak-proof device for laser surgery based on conductance monitoring closed-loop feedback control | |
| US6899708B2 (en) | Sterile tissue access system | |
| CN111643187B (en) | Condensing tube leakage-proof device for laser surgery based on conductance monitoring closed-loop feedback control | |
| CN212547161U (en) | Multifunctional microwave ablation needle | |
| CN209499889U (en) | A kind of interventional minimally-invasive subtracts the ablation needle of tire application | |
| CN216060973U (en) | Cooling device, auxiliary instrument and medical system for hysteromyoma ablation operation | |
| US20240350195A1 (en) | Surgical probe device, and systems and methods for cooling the same | |
| CN117643497A (en) | Ablation device with boundary temperature monitoring function | |
| WO2024221002A1 (en) | A surgical probe device, and systems and methods for cooling the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |