CN1313062C - Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system - Google Patents
Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system Download PDFInfo
- Publication number
- CN1313062C CN1313062C CNB2005100273438A CN200510027343A CN1313062C CN 1313062 C CN1313062 C CN 1313062C CN B2005100273438 A CNB2005100273438 A CN B2005100273438A CN 200510027343 A CN200510027343 A CN 200510027343A CN 1313062 C CN1313062 C CN 1313062C
- Authority
- CN
- China
- Prior art keywords
- temperature
- liquid nitrogen
- colds
- heat succeed
- head
- 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.)
- Active
Links
Abstract
The present invention relates to a cold and hot alternate tumor treating system with a controllable speed rate for temperature increase and decrease. The present invention is characterized in that a liquid nitrogen transmitting pipeline is connected with a liquid outlet of a high pressure liquid nitrogen dewar type container with self pressurization. A low temperature electromagnetic valve is positioned on the liquid nitrogen transmitting pipeline and is connected with a control system by a control wire. A gas-liquid separator with an exhaust outlet provided with a switch is connected between the end of the liquid nitrogen transmitting pipeline and an inlet of a needle type cold and hot alternate tumor treating head by a pipeline connection head. A thermocouple positioned in the front end of the needle type cold and hot alternate tumor treating head is connected with a temperature collecting device by the leading wire of the thermocouple. A radio frequency generator is connected with the needle type cold and hot alternate tumor treating head by a single core shielded wire and is simultaneously connected with the control system by a control wire. The control system is connected with the temperature collecting device by a data wire. The present invention combines the advantages of a low temperature operating knife and radio frequency thermotherapy. Least harm to health tissue can be ensured when the killing rate of malignant tumors is enhanced, and the relapse rate of an operation is reduced, and the hot and cold alternate treatment of the malignant tumors can be realized.
Description
Technical field
What the present invention relates to is a kind of equipment of technical field of medical instruments, specifically be a kind of be cold-producing medium with the liquid nitrogen, radio frequency is heated to be the controlled system of tumor treatment that colds and heat succeed each other of temperature rate of thermal source.
Background technology
Along with the malignant tumor sickness rate improves year by year, threat to human health is increasing, traditional therapy such as operation, radiotherapy, chemotherapy etc. also reach its maturity in treatment, but they cause in various degree damage to the normal function of body inevitably, and still remain further to be improved on the success rate of treatment.And along with science and technology development, particularly image technology such as NMR (Nuclear Magnetic Resonance)-imaging, the progress of ultra sonic imaging etc., Minimally Invasive Surgerys such as the freezing operation of tumor and thermotherapy method begin that many development have been arranged, just more and more welcome, but they also still have defective separately.The condition of the complete kill tumor cell of existing cryosurgery is relatively harsher, and the zone of 5 months low temperature injuries of discovery postoperative in to the cryosurgery research of Lac caprae seu ovis adenocarcinoma such as Rabin has only half of the zone that freezes.And when using the radio-frequency (RF) thermotherapeutic method, because the use of heat allows blood circulation accelerate, can take away because of the heat that radio frequency produces, weaken the radio-frequency (RF) thermotherapeutic effect.This defective is especially protruded when the vigorous organ tumor of blood circulation is treated, not only influences tumor cell destruction, and because the blood circulation effect, the warm border that raises is difficult to control, the reliability of influence treatment.And cryosurgery not only can the kill tumor cell, but the blood circulation in the destroyed tumor also, thus improve the thermotherapy efficient of radio-frequency (RF) ablation.And under the effect of repeatedly colding and heat succeed each other, tumor cell and microcirculation endotheliocyte thereof are in hot-cool environment jumpy, and survival rate is minimum, therefore adopt this method might reach the purpose of killing malignant tumor fully.In addition, under the alternating action of suddenly cold and hot repeatedly, tumor cell surface may expression specificity antigen, help by the immune system recognition of human body, thus can be by the immune system kill tumor cell of self.
Find by prior art documents, number of patent application is: 01201762.0, name is called: " can impel and freeze the immersion freezing type cryoprobe device that tumor tissues is rapidly heated and melts ", realize the treatment that colds and heat succeed each other though can utilize it, but it be a kind of " immersion freezing type cryoprobe device ", " during use; freezing head places liquid nitrogen in advance; after the taking-up it is touched tumor locus ", the rewarming of this freezing head utilizes inner heating element heater to realize, therefore the liquid nitrogen stream that had not both had to continue is realized the lasting treatment that colds and heat succeed each other, and the heat that heating element heater produces is again only by the conduction of heat transmission, and effective range does not have the scope of radio frequency heating big; And this device is only applicable to treat superficiality tumors such as cutaneous tumor, then can not be suitable for fully for being positioned at the intravital tumor of people, has bigger limitation.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of temperature rate the controlled system of tumor treatment that colds and heat succeed each other.Make its therapeutic process that accurately colds and heat succeed each other to control, improve the malignant tumor kill rate, reduce the recurrence after operation rate, guarantee simultaneously the minimum injury of health tissues.
The present invention is achieved by the following technical solutions: the present invention includes: band is from the high-pressure liquid nitrogen Dewar type container of supercharging, the liquid nitrogen transmission pipeline, low-temperature solenoid valve, temperature collecting device, thermocouple and control system, the pin type oncotherapy head that colds and heat succeed each other, the radio frequency generating means, the gas-liquid separation device of air vent belt switch, the liquid nitrogen transmission pipeline is connected with the liquid outlet of band from the high-pressure liquid nitrogen Dewar type container of supercharging, low-temperature solenoid valve is positioned on the liquid nitrogen transmission pipeline, and link to each other with control system by control line, terminal and pin type colds and heat succeed each other and is connected to the gas-liquid separation device of air vent belt switch between the import of oncotherapy head by the pipeline union joint at the liquid nitrogen transmission pipeline, being positioned at the cold and heat succeed each other thermocouple of oncotherapy head front end inside of pin type links to each other with temperature collecting device by thermocouple lead, the radio frequency generating means links to each other by single-core shielding line and the pin type oncotherapy head that colds and heat succeed each other, and also links to each other with control system by control line simultaneously.Be connected by data wire between control system and temperature collecting device.
The import of the gas-liquid separation device of described air vent belt switch links to each other by the pipeline union joint with the liquid nitrogen transmission pipeline is terminal, and the liquid outlet of gas-liquid separation device colds and heat succeed each other with pin type and links to each other by the pipeline union joint between the import of oncotherapy head.
Described control system links to each other with radio frequency generating means, low-temperature solenoid valve respectively by control line, links to each other with temperature collecting device by data wire.Send control signal by control line to RF transmitter, low-temperature solenoid valve.Obtain the temperature signal of temperature collecting device by data wire.
When using this system to move the low temperature therapy program, gas-liquid separation device is in exhaust condition; And when the operation heating schedule, gas-liquid separation device is in non-exhaust condition.Control system of the present invention is according to the temperature signal of the data wire transmission that links to each other with temperature collecting device, and one side is controlled the switching time and the frequency of low-temperature solenoid valve, and liquid nitrogen or cryogenic gas are delivered to the pin type oncotherapy head that colds and heat succeed each other; Control radio frequency generation power on the other hand, action time and effect frequency, produce different radio frequency heats in the cold and heat succeed each other treatment section of oncotherapy head of pin type, refrigeration by liquid nitrogen or low temperature nitrogen and organic stack of radio frequency heats and be used alternatingly, (comprise heating rate in the pin type thermoregulation effect that the treatment section of oncotherapy head obtains expection that colds and heat succeed each other, rate of temperature fall, rewarming speed, minimum temperature and maximum temperature etc.) and alternative height, cold service, contact with the direct of lesion tissue by the pin type oncotherapy head that colds and heat succeed each other, reach the low temperature controlled lesion tissue, radio frequency heating alternating treatment.
Operation principle of the present invention is: radio-frequency (RF) therapy system and cryosurgery therapy system are organically combined, realize the cold and heat succeed each other treatment controlled to lesion tissue.(1) in the required temperature-fall period of treatment (low temperature therapy), gas-liquid separator is placed exhaust condition, by the control of control system to low-temperature solenoid valve, with liquid nitrogen by the liquid nitrogen transmission pipeline input pin type oncotherapy head that colds and heat succeed each other, treatment section at the treatment head produces cold service, control opening time, frequency, the generation power of radio frequency generating means simultaneously by control system, produce certain heats in the cold and heat succeed each other treatment section of oncotherapy head of pin type, by both synergism, reach required rate of temperature fall, the temperature range of cooling; (2) in the required temperature-rise period of treatment (comprising the rewarming of low temperature therapy, the intensification of high temperature thermotherapy), close the gas-liquid separation device degassing function, control the power of radio frequency heating on the one hand by control system, on the other hand by control low-temperature solenoid valve opening time and switching frequency, regulate the refrigeration of low temperature nitrogen, organically combine the scope that obtains required heating rate, temperature rising by both; (3) thus being used alternatingly above-mentioned controlled cooling process and heating schedule reaches the treatment that colds and heat succeed each other to lesion tissue.
Beneficial effect of the present invention: have the double effects of general cryoprobe and radio-frequency (RF) ablation, and obviously embodied the two formed technical advantage that combines:
Use when (1) radio frequency heats with liquid nitrogen cryogenics, can reach by control the effectively accurate of treatment procedure controlled, thereby protect the health tissue as much as possible, kill tumor tissues heating power, frequency and liquid nitrogen flow;
(2) working method that colds and heat succeed each other can promote the scope of killing and wounding for tumor focus respectively, not only can overcome cryoprobe and form that the efficient of cold emission reduces behind the ice-nucleus, and also can reduce radio-frequency electrode surrounding tissue coking phenomenon;
(3) the alternating treatment mode of cold after heat has earlier strengthened the hazard boundary of tumor.Behind cryosurgery, the blood flow of tumor tissues marginal portion will slow down even stop, eliminated blood flow weakening and interference to action of radio, radio-frequency (RF) thermotherapeutic can be stable reach farther scope, thereby make the scope of treatment more controlled, our zoopery find the to cold and heat succeed each other effect of treatment obviously is better than single cold or single heating therapy, the area for treatment that colds and heat succeed each other and the regional basically identical that tumor tissue necrosis takes place, and behind the single thermal therapeutical of single cold-peace, at onesize tumor, all have tumor cell remaining at the edge of tumor, the zone that the tumor cell necrosis takes place is less than area for treatment;
When (4) radio frequency heated to treat, low temperature nitrogen was used as cooling protection gas, avoided the pin type effectively surrounding tissue carbonization that causes after overheated of section of oncotherapy head that colds and heat succeed each other, and ablation range can be enlarged more than 1.5 times;
(5) cryogenic anesthetic action and possible immune system trigger action have reduced the required anesthetis consumption of therapeutic process, improved more the back effect (zoopery shows, uses that anaesthetic can be reduced by half, and postoperative more after effect be better than Dan Lengdan heat);
(6), greatly reduce the cost of operation because of accurate control for liquid nitrogen flow.
The present invention rationally, science, taken into full account the specific requirement in the clinical practice, and the misery accurate to treat, respond well, that patient bears is basic goal less, satisfy the requirement of the external minimally-invasive treatment of tumor.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes the high-pressure liquid nitrogen Dewar type container 1 of band from supercharging, liquid nitrogen transmission pipeline 2, low-temperature solenoid valve 3, the gas-liquid separation device 4 of air vent belt switch, the pin type oncotherapy head 5 that colds and heat succeed each other, thermocouple 6, radio frequency generating means 8, control system 11, temperature collecting device 12, liquid nitrogen transmission pipeline 2 is connected with the liquid outlet of band from the high-pressure liquid nitrogen Dewar type container 1 of supercharging, low-temperature solenoid valve 3 is positioned on the liquid nitrogen transmission pipeline 2, and link to each other with control system 11 by control line 10, terminal and pin type colds and heat succeed each other and is connected to the gas-liquid separation device 4 of air vent belt switch between 5 imports of oncotherapy head by the pipeline union joint at liquid nitrogen transmission pipeline 2, being positioned at the cold and heat succeed each other thermocouple 6 of oncotherapy head front end inside of pin type links to each other with temperature collecting device 12 by thermocouple lead 9, radio frequency generating means 8 links to each other by single-core shielding line 7 and the pin type oncotherapy head 5 that colds and heat succeed each other, also link to each other with control system 11 simultaneously, be connected by data wire 13 between control system 11 and the temperature collecting device 12 by control line 10.
Control system 11 links to each other with radio frequency generating means 8, low-temperature solenoid valve 3 respectively by control line 10, links to each other with temperature collecting device 12 by data wire 13.Send control signal by control line 10 to RF transmitter 8, low-temperature solenoid valve 3.Obtain the temperature signal of temperature collecting device 12 by data wire.
The gas-liquid separation device 4 of air vent belt switch, pin type cold and heat succeed each other oncotherapy head 5 according to the prior art manufacturing.Band is bought by market from the high-pressure liquid nitrogen Dewar type container 1 of supercharging and is obtained, and its liquid outlet directly links to each other by the pipeline union joint with liquid nitrogen transmission pipeline 2.
Pin type colds and heat succeed each other and is connected by single-core shielding line 7 between oncotherapy head 5 and the radio frequency generating means 8.
The import of the gas-liquid separation device 4 of air vent belt switch links to each other by the pipeline union joint with liquid nitrogen transmission pipeline 2 ends, and the liquid outlet of gas-liquid separation device 4 colds and heat succeed each other with pin type and links to each other by the pipeline union joint between 5 imports of oncotherapy head.The gas-liquid separation device 4 of air vent belt switch is when operation low temperature therapy program, and the exhaust ports of gas-liquid separation device 4 is in opening; And when the operation heating schedule, the exhaust ports of gas-liquid separation device 4 is in closed condition.
In actual applications, control unit is compared the Temperature numerical that temperature measuring unit collects with setting value, the switching Time And Frequency of decision low-temperature solenoid valve 3, the low temperature liquid nitrogen of liquid nitrogen storage element or low temperature nitrogen are delivered to the pin type oncotherapy head 5 that colds and heat succeed each other by the gas-liquid supply unit, and safety is discharged; Determine the parameter such as power, opening time, frequency of radio frequency generating means 11 simultaneously, on pin type colds and heat succeed each other oncotherapy head 5, produce action of radio; By both collaborative and alternating actions, to imposing the effect of colding and heat succeed each other of sequencing with the cold and heat succeed each other direct contacted lesion tissue of treatment section of oncotherapy head of pin type, guarantee with the health tissues of lesion tissue vicinity injury-free on the one hand, kill the blood circulation that the lesion tissue cell destroys lesion tissue on the other hand, reach the minimally-invasive treatment effect.
Claims (4)
1, the system of tumor treatment that colds and heat succeed each other that a kind of temperature rate is controlled, comprise: band is from the high-pressure liquid nitrogen Dewar type container (1) of supercharging, liquid nitrogen transmission pipeline (2), low-temperature solenoid valve (3), the pin type oncotherapy head (5) that colds and heat succeed each other, thermocouple (6), control system (11), temperature collecting device (12), it is characterized in that, also comprise: the gas-liquid separation device of air vent belt switch (4), radio frequency generating means (8), liquid nitrogen transmission pipeline (2) is connected with the liquid outlet of band from the high-pressure liquid nitrogen Dewar type container (1) of supercharging, low-temperature solenoid valve (3) is positioned on the liquid nitrogen transmission pipeline (2), and link to each other with control system (11) by control line (10), terminal and pin type colds and heat succeed each other and is connected to the gas-liquid separation device (4) of air vent belt switch between oncotherapy head (5) import by the pipeline union joint at liquid nitrogen transmission pipeline (2), being positioned at the cold and heat succeed each other thermocouple (6) of oncotherapy head front end inside of pin type links to each other with temperature collecting device (12) by thermocouple lead (9), radio frequency generating means (8) links to each other by single-core shielding line (7) and the pin type oncotherapy head (5) that colds and heat succeed each other, also link to each other with control system (11) simultaneously, be connected by data wire (13) between control system (11) and the temperature collecting device (12) by control line (10).
2, the system of tumor treatment that colds and heat succeed each other that temperature rate according to claim 1 is controlled, it is characterized in that, described control system (11) links to each other with radio frequency generating means (8), low-temperature solenoid valve (3) respectively by control line (10), link to each other with temperature collecting device (12) by data wire (13), control system (11) is sent control signal by control line (10) to RF transmitter (8), low-temperature solenoid valve (3), obtains the temperature signal of temperature collecting device (12) by data wire.
3. the system of tumor treatment that colds and heat succeed each other that temperature rate according to claim 1 is controlled, it is characterized in that, the import of the gas-liquid separation device of described air vent belt switch (4) links to each other by the pipeline union joint with liquid nitrogen transmission pipeline (2) is terminal, and the liquid outlet of the gas-liquid separation device of air vent belt switch (4) colds and heat succeed each other with pin type and links to each other by the pipeline union joint between oncotherapy head (5) import.
4. according to claim 1 or the controlled system of tumor treatment that colds and heat succeed each other of 3 described temperature rates, it is characterized in that, the gas-liquid separation device of described air vent belt switch (4), when operation low temperature therapy program, its aerofluxus is in opening; And when the operation heating schedule, its aerofluxus is in closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100273438A CN1313062C (en) | 2005-06-30 | 2005-06-30 | Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100273438A CN1313062C (en) | 2005-06-30 | 2005-06-30 | Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1709212A CN1709212A (en) | 2005-12-21 |
| CN1313062C true CN1313062C (en) | 2007-05-02 |
Family
ID=35705545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100273438A Active CN1313062C (en) | 2005-06-30 | 2005-06-30 | Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1313062C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803947B (en) * | 2010-03-11 | 2012-09-05 | 中国科学院理化技术研究所 | Cold and hot probe device used for cold and hot combination therapy of tumor |
| CN101856266B (en) * | 2010-06-21 | 2011-08-03 | 重庆大学 | Liquid-nitrogen driving cold and hot minimally invasive cutter system |
| CN103027742B (en) * | 2012-12-31 | 2015-02-11 | 中国科学技术大学 | Nuclear magnetic resonance compatible cold-thermal therapy system |
| CN104083205A (en) * | 2014-07-07 | 2014-10-08 | 上海交通大学 | Cancer treating system and method |
| CN104783890B (en) * | 2015-04-14 | 2018-05-01 | 上海交通大学 | A kind of cold and hot therapeutic system of melanoma |
| CN106073980B (en) * | 2016-08-12 | 2019-03-12 | 上海交通大学 | A kind of contact superficial tumor hot and cold alternation treatment probe |
| CN106220723A (en) | 2016-08-17 | 2016-12-14 | 上海交通大学 | A kind of tumor antigens preparation method and product thereof and application |
| CN112370233B (en) * | 2020-10-30 | 2022-08-23 | 青岛海尔生物医疗股份有限公司 | Liquid nitrogen volatilization device |
| CN112315701B (en) * | 2020-10-30 | 2022-05-24 | 青岛海尔生物医疗股份有限公司 | Low-temperature cold therapy instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08117264A (en) * | 1994-10-24 | 1996-05-14 | Daikin Ind Ltd | Organism-cooling device |
| US5702435A (en) * | 1993-01-25 | 1997-12-30 | State Of Israel Ministry Of Defense, Rafael-Armaments | Fast changing heating-cooling device and method |
| CN2458995Y (en) * | 2001-01-20 | 2001-11-14 | 中国科学院理化技术研究所 | Submersion cooling type cryoprobe capable of speedup of quick heating and thawing frozen tumor tissue |
| CN2503854Y (en) * | 2001-10-22 | 2002-08-07 | 中国科学院理化技术研究所 | Probe tumour therapeutic instrument for alternatively transporting high-low temp working medium so as to realize temp suddenly increasing or decreasing |
| JP2003323219A (en) * | 2002-01-22 | 2003-11-14 | Thermo Solution:Kk | Temperature regulator |
| CN1561925A (en) * | 2004-04-22 | 2005-01-12 | 上海交通大学 | Needle type cold and hot alternative tumor therapeutic head |
-
2005
- 2005-06-30 CN CNB2005100273438A patent/CN1313062C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702435A (en) * | 1993-01-25 | 1997-12-30 | State Of Israel Ministry Of Defense, Rafael-Armaments | Fast changing heating-cooling device and method |
| JPH08117264A (en) * | 1994-10-24 | 1996-05-14 | Daikin Ind Ltd | Organism-cooling device |
| CN2458995Y (en) * | 2001-01-20 | 2001-11-14 | 中国科学院理化技术研究所 | Submersion cooling type cryoprobe capable of speedup of quick heating and thawing frozen tumor tissue |
| CN2503854Y (en) * | 2001-10-22 | 2002-08-07 | 中国科学院理化技术研究所 | Probe tumour therapeutic instrument for alternatively transporting high-low temp working medium so as to realize temp suddenly increasing or decreasing |
| JP2003323219A (en) * | 2002-01-22 | 2003-11-14 | Thermo Solution:Kk | Temperature regulator |
| CN1561925A (en) * | 2004-04-22 | 2005-01-12 | 上海交通大学 | Needle type cold and hot alternative tumor therapeutic head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1709212A (en) | 2005-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1313062C (en) | Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system | |
| CN1191873C (en) | Cooled-wet electrode | |
| US10624696B2 (en) | Systems and methods for creating an effect using microwave energy to specified tissue | |
| CN105208954B (en) | Low temperature Blunt dissection method and apparatus | |
| US5733316A (en) | Organ separation for thermal therapy | |
| CN101579256A (en) | Concentric, detachable and replaceable multifunctional targeted tumor scalpel | |
| US20090118722A1 (en) | Method and apparatus for cooling subcutaneous lipid-rich cells or tissue | |
| CA2608783A1 (en) | Subdermal cryogenic remodeling | |
| CN102711645A (en) | Systems, apparatuses, and methods for treating tissue and controlling stenosis | |
| CN1254218C (en) | Needle type cold and hot alternative tumor therapeutic head | |
| CN101292897A (en) | Cold-hot probe therapy system | |
| CN103027742B (en) | Nuclear magnetic resonance compatible cold-thermal therapy system | |
| CN102670298A (en) | Broad spectrum type tumor thermal therapy device | |
| JP4795354B2 (en) | Apparatus and method for cryosurgery | |
| US20040220557A1 (en) | Closed system warming catheter and method of use | |
| Blute et al. | Minimally invasive therapies for benign prostatic hyperplasia | |
| CN102755190B (en) | All-functional wide warm area low-temperature treatment equipment | |
| CN104427949A (en) | Cylindrical probe outer casing for cryosurgery device, and treatment unit | |
| CN203042426U (en) | Nuclear magnetic resonance compatible cold-thermal therapy system | |
| CN2838553Y (en) | Irradiation heater for preventing normal tissue from cold injury in cryogenic operation | |
| US20070149958A1 (en) | Cryoprobe with exhaust heater | |
| Frieser et al. | Radiofrequency ablation of liver tumors: How to enlarge the necrotic zones? | |
| CN209360881U (en) | Equipment and its SURGICAL NEEDLE THREADING DEVICE group for minimally invasive combination therapy | |
| CN206995328U (en) | A kind of minimally invasive cryoprobe system of high pressure gas expansion refrigeration | |
| CN2503854Y (en) | Probe tumour therapeutic instrument for alternatively transporting high-low temp working medium so as to realize temp suddenly increasing or decreasing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210603 Address after: 200030 No. 1954, Huashan Road, Shanghai, Xuhui District Patentee after: Xu Xuemin Patentee after: Zhang Aili Patentee after: Liu Ping Patentee after: Sun Jianqi Patentee after: Bai Jingfeng Address before: 200240 No. 800, Dongchuan Road, Shanghai, Minhang District Patentee before: SHANGHAI JIAO TONG University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211210 Address after: 200233 rooms 403 and 405, floor 4, No. 418, Guiping Road, Xuhui District, Shanghai Patentee after: Shanghai Meijie Medical Technology Co.,Ltd. Address before: 200030 No. 1954, Huashan Road, Shanghai, Xuhui District Patentee before: Xu Xuemin Patentee before: Zhang Aili Patentee before: Liu Ping Patentee before: Sun Jianqi Patentee before: Bai Jingfeng |