CN210871998U - Argon-helium knife capable of heating - Google Patents
Argon-helium knife capable of heating Download PDFInfo
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- CN210871998U CN210871998U CN201921394766.7U CN201921394766U CN210871998U CN 210871998 U CN210871998 U CN 210871998U CN 201921394766 U CN201921394766 U CN 201921394766U CN 210871998 U CN210871998 U CN 210871998U
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Abstract
The utility model relates to an argon helium sword that can intensifie, including gas passage, gas passage's one end is connected with the gas supply jar, gas passage's the other end and argon helium sword tool bit are connected, the last heat transfer assembly who can the fluid temperature in the selective control gas passage that is equipped with of gas passage, heat transfer assembly includes first gas circuit switching valve, second gas circuit switching valve, heating unit and temperature control unit, first gas circuit switching valve and second gas circuit switching valve set up respectively on gas passage, heating unit respectively with first gas circuit switching valve, second gas circuit switching valve is connected, temperature control unit and heating unit are connected, temperature control unit is used for controlling the temperature in the heating unit.
Description
Technical Field
The utility model relates to a medical instrument, in particular to a surgical operation instrument for tumor cryotherapy.
Background
The argon-helium knife principle and the argon-helium cryoablation technology are short for argon-helium knife, and the argon-helium cryoablation technology passes American FDA approval, IEC and EMC certification since 1998, and is an advanced medical technology for minimally invasive ultralow temperature cryoablation of tumors. Can effectively treat solid tumors such as lung cancer, liver cancer, brain tumor, breast cancer and the like. Can achieve satisfactory clinical effects when being combined with chemotherapy, radiotherapy, biotherapy and traditional Chinese medicine. It is a high and new technology developed after radiofrequency ablation therapy, microwave, laser, ultrasonic focusing knife, gamma knife and the like. The argon-helium knife operation is to puncture, position and accurately puncture into a tumor body under the guidance and monitoring of B-ultrasound, CT, magnetic resonance and the like, then to reduce the temperature by throttling and expanding at a knife tip by means of argon gas, and to freeze a lesion tissue to 140-170 ℃ below zero in a short time. After a certain time, switching helium gas, and rapidly heating the lesion tissue to 20-40 ℃ by virtue of throttling expansion of the helium gas at the tool nose. Then the above-mentioned cold and hot processes are repeated several times, so that the tumor tissue can be completely destroyed, and the goal of treatment can be reached. The speed, time and temperature of the argon-helium knife for cooling and heating destroy the size and shape of the area, and greatly influence the treatment effect.
The argon-helium scalpel has good treatment effects on lung cancer, liver cancer, hepatic hemangioma, pancreatic cancer, breast cancer, hyperplasia of mammary glands, brain tumor, meningioma, prostate cancer, prostatic hyperplasia, kidney cancer, adrenal gland tumor, perineum tumor, uterine cancer, cervical cancer, ovarian cancer, penis cancer, skin cancer, melanoma, hemangioma, osteosarcoma, tonsil cancer, throat tumor, nasopharyngeal carcinoma, neurofibroma, liposarcoma, oral cancer, tongue cancer, maxillofacial tumor, neck tumor and the like.
At present, argon is adopted at home and abroad to realize the throttling expansion cooling of the tool bit, so that the local tumor tissue is frozen at the temperature of 140 ℃ below zero to 170 ℃, and then normal-temperature high-pressure helium is introduced to perform the throttling heating of the tool bit, so that the final heating can reach 20 ℃ to 40 ℃. After many times of freezing-warming treatment, the tumor tissue is destroyed and dies. Although the above process has good results in tumor treatment, the temperature rise speed of introducing helium is slow, and the temperature is not high enough, which affects the operation effect.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a method which can rapidly heat up and can raise the temperature to a higher temperature, and an argon-helium knife which can heat up is designed by the method.
In order to accomplish above-mentioned purpose, the utility model provides an argon helium sword that can intensifie, including gas passage, gas passage's one end is connected with the gas supply jar, gas passage's the other end and argon helium sword tool bit are connected, the last heat transfer assembly who can the interior fluid temperature of selective control gas flow way that is equipped with of gas passage, heat transfer assembly includes first gas circuit switching valve, second gas circuit switching valve, heating element and temperature control unit, first gas circuit switching valve and second gas circuit switching valve set up respectively on gas passage, heating element respectively with first gas circuit switching valve, second gas circuit switching valve is connected, temperature control unit is connected with heating unit, temperature control unit is used for controlling the temperature in the heating element.
Preferably, the heating unit includes confined cavity, heat transfer spiral pipe, temperature element and heating element, and the one end and the first gas circuit of heat transfer spiral pipe switch over the valve and be connected, and the other end and the second gas circuit of heat transfer spiral pipe switch over the valve and be connected, and the heat transfer spiral pipe sets up in the cavity, and temperature element sets up on the lateral wall of cavity, and heating element sets up in the cavity.
Further preferably, the heating unit further includes a thermal circulation fan disposed on a sidewall of the chamber.
Further preferably, the chamber is a cube with an insulating layer, and a door with a hinge is arranged on one side of the chamber.
Further preferably, the heat exchange coil is a coiled heating tube.
Still more preferably, the diameter of the heat exchange coil is 1mm to 10mm, and the length of the heat exchange coil is 0.5m to 10 m.
Still more preferably, the pipe diameter of the heat exchange spiral pipe is 3mm to 5mm, and the length of the heat exchange spiral pipe is 3m to 8 m.
Further preferably, the temperature measuring element is a thermal resistance temperature measuring element or a thermocouple temperature measuring element, and the heating element is an alloy heating wire or a PTC heating sheet or a ceramic heating chip or a led tube or a silicon controlled component.
Preferably, the temperature control unit is a PLC temperature controller or a node type temperature controller.
The utility model has the advantages that: in the utility model, when the temperature reduction treatment is carried out, the first gas circuit switching valve and the second gas circuit switching valve are in a straight-through state, so that the argon gas directly flows to the argon-helium knife head without passing through the heating element, and after flowing into the argon-helium knife head, the low-temperature treatment is carried out on the lesion tissue through throttling and temperature reduction; when temperature rise treatment is needed, the argon gas is closed, the first air path switching valve and the second air path switching valve are switched to the heating element, the helium gas is opened at the moment, flows into the heating unit through the first air path switching valve, flows into the argon-helium cutter head through the second air path switching valve after the temperature rises to a needed value, and performs heat ablation treatment on the lesion tissue through throttling temperature rise. Because the temperature of the heating unit is strictly controlled, the helium reaches a certain stable temperature value before entering the argon-helium knife head, and the temperature is further increased after throttling, so that the thermal ablation speed is greatly increased, the treatment effect on the pathological tissue is improved, the closure of the capillary is promoted, and the bleeding is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the heating unit of the argon-helium knife capable of heating according to the present invention.
Description of the reference numerals
1. A gas channel; 2. a first gas path switching valve; 3. a second gas path switching valve;
4. a chamber; 5. a heat exchange spiral pipe; 6. a thermal circulation fan;
7. a temperature measuring element; 8. a heating element.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, this embodiment provides an argon-helium knife capable of heating, including gas channel 1, one end of gas channel 1 is connected with a gas supply tank (not shown in the figure, the gas supply tank includes helium tank and argon tank), the other end of gas channel 1 is connected with argon-helium knife head 10, gas channel 1 is provided with a heat transfer component capable of selectively controlling the temperature of fluid (helium) in gas channel 1, the heat transfer component includes first gas circuit switching valve 2, second gas circuit switching valve 3, a heating unit and a temperature control unit, first gas circuit switching valve 2 and second gas circuit switching valve 3 are respectively arranged on gas channel, the heating unit is respectively connected with first gas circuit switching valve 1, second gas circuit switching valve 3, the temperature control unit is connected with the heating unit, the temperature control unit is used for controlling the temperature in the heating unit. In this embodiment, when the temperature reduction treatment is performed, the first gas path switching valve 2 and the second gas path switching valve 3 are in a through state, so that the argon gas directly flows to the argon-helium knife head without passing through the heating element, and after flowing into the argon-helium knife head, the argon-helium knife head performs the low temperature treatment on the lesion tissue through throttling and cooling, that is, when the temperature reduction treatment is performed, the fluid directly flows to the argon-helium knife head 10 after passing through the second gas path switching valve 3 when passing through the first gas path switching valve 2, that is, the first gas path switching valve 2 closes the channel in the direction of the heating unit, and the second gas path switching valve 3 closes the channel in the direction of the heating unit; when heating treatment is needed, the argon gas is turned off, the first gas path switching valve 2 and the second gas path switching valve 3 are switched to the heating element, and at this time, helium gas is turned on (the specific structure is a common structure adopted in this embodiment, which is well known in the prior art, and therefore, the specific switching structure is not described in detail in this embodiment), the helium gas flows into the heating unit through the first gas path switching valve 2, the second gas path switching valve 3 is turned on after the temperature is raised to a required value, the argon-helium cutter flows into the argon-helium cutter through the second gas path switching valve 3, and thermal ablation treatment is performed on the lesion tissue through throttling temperature rise, that is, the first gas path switching valve 2 guides the helium gas to the heating unit, and simultaneously the gas channel in the straight direction is turned off (i.e., the pipeline between the first gas path switching valve 2 and the second gas path switching valve 3 is closed), helium flows to the argon-helium knife head 10 through the second air path switching valve 3, and in the process, the flowing direction of the second air path switching valve 3 is the direction of the heating unit-the argon-helium knife head 10. In the embodiment, the temperature of the heating unit is strictly controlled by the temperature control unit, so that the helium reaches a certain stable temperature value before entering the argon-helium knife head, and the temperature is further increased after throttling, thereby greatly accelerating the thermal ablation speed, improving the treatment effect on the pathological tissue, promoting the closure of the microvasculature and reducing bleeding.
In this embodiment, the heating unit includes confined cavity 4, heat transfer spiral pipe 5, temperature element 7 and heating element 8, and the one end and the first gas circuit of heat transfer spiral pipe 5 switch over valve 2 and are connected, and the other end and the second gas circuit of heat transfer spiral pipe 5 switch over valve 3 and are connected, and heat transfer spiral pipe 5 sets up in cavity 4, and temperature element 7 sets up on the lateral wall of cavity 4, and heating element 8 sets up in the cavity. In particular, in this embodiment, a compartment is provided within the chamber 4, and the heating element 8 is positioned within the compartment such that heat is dissipated from the compartment and thus throughout the chamber 4. In addition, in the present embodiment, in order to accelerate the flow of heat in the chamber 4, a heat circulation fan 6 is further provided on the side wall of the chamber. Further, in order to prevent the loss of heat in the chamber 4, in the present embodiment, the chamber 4 is made of a cube with an insulating layer, and a door with a hinge is provided at one side of the cube, and the cube can be sealed after the door is closed on the cube. Furthermore, in this embodiment, the heat exchanging spiral pipe 5 is made of a spiral heating pipe, and the pipe diameter of the heat exchanging spiral pipe 5 is selected from a range of 1mm to 10mm, preferably, the pipe diameter is 3mm to 5mm, and the length of the heat exchanging spiral pipe 5 is between 0.58m to 10m, preferably, 3m to 8 m. Since the spiral pipeline is adopted for heating in the embodiment, helium can be sufficiently heated in the chamber 4.
For convenience of manufacture, the temperature measuring element 7 used in this embodiment is a thermal resistance temperature measuring element or a thermocouple temperature measuring element. Meanwhile, the heating element 8 used in the present embodiment is an alloy heating wire, a PTC heating sheet, a ceramic heating chip, a led tube, or a silicon controlled component. The temperature control unit is a PLC temperature controller or a node type temperature controller, and is respectively connected with the temperature measuring element 7 and the heating element 8, so that the temperature in the chamber 4 is always in a stabilizing device. When the temperature is low, the temperature control unit controls the heating element 8 to start heating, and when the temperature reaches a proper temperature, the temperature control unit stops the heating element 8. Meanwhile, the temperature measuring unit 7 displays the measured temperature on a display screen on the temperature control unit in real time.
The specific use method of the embodiment is as follows: firstly, the heating element 8 is turned on to start to increase the temperature in the chamber 4, the temperature in the chamber 4 is observed through the temperature measuring element 7, the heating element 8 is turned off after the temperature reaches a certain height, so that the temperature in the chamber 4 is kept in a certain range, in the process, the temperature in the chamber 4 is controlled through the temperature control unit, namely, when the temperature is low, the temperature control unit can control the heating element 8 to start heating, and when the temperature reaches a proper temperature, the temperature control unit stops the work of the heating element 8. And in order to accelerate the heat exchange speed of the fluid in the heat exchange coil 5 and the temperature in the chamber 4, the thermal circulation fan 6 in the chamber 4 is turned on to make the gas in the chamber 4 flow. Like this, when need lead to the cooling treatment for first gas circuit switching valve 2 and second gas circuit switching valve 3 keep the connected state, and at this moment, argon gas can not pass through the heating unit, and argon gas is direct to reach argon helium knife tool bit 10 through gas passage 1, and the gas flow in the gas passage 1 flows to and is: the argon supply tank, the first gas path switching valve 2, the second gas path switching valve 3 and the argon helium knife head 10. When the treatment of rising the temperature is carried out to needs, close and supply the argon gas jar, then switch first gas circuit switching valve 2 and second gas circuit switching valve 3 to make the helium pass through the heating unit, open and supply the helium gas jar, make the gas flow in the gas passage 1 flow to do: the helium supply tank-first gas path switching valve 2-heat exchange spiral pipe 5-second gas path switching valve 3-argon helium knife head 10.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides an argon helium sword that can heat up which characterized in that, includes gas passage, gas passage's one end is connected with the gas supply jar, gas passage's the other end and argon helium sword tool bit are connected, the last heat transfer subassembly that can the fluid temperature in the selective control gas passage that is equipped with of gas passage.
2. The temperature-elevating argon-helium knife according to claim 1,
the heat transfer assembly comprises a first air path switching valve, a second air path switching valve, a heating unit and a temperature control unit, wherein the first air path switching valve and the second air path switching valve are respectively arranged on the air channel, the heating unit is respectively connected with the first air path switching valve and the second air path switching valve, the temperature control unit is connected with the heating unit, and the temperature control unit is used for controlling the temperature in the heating unit.
3. The cryogenically-heatable argon-helium knife of claim 2 wherein the heating unit comprises a closed chamber, a heat exchange coil, a temperature measuring element and a heating element, one end of the heat exchange coil is connected to the first gas path switching valve, the other end of the heat exchange coil is connected to the second gas path switching valve, the heat exchange coil is disposed within the chamber, the temperature measuring element is disposed on a side wall of the chamber, and the heating element is disposed within the chamber.
4. The warmed argon helium knife of claim 3, wherein the heating unit further comprises a thermal circulation fan disposed on a side wall of the chamber.
5. The warmed argon-helium knife of claim 3, wherein the chamber is a cube with insulation and a hinged door is provided on one side of the chamber.
6. The cryogenically-heatable argon-helium knife of claim 3 wherein the heat exchange coil is a coiled heating tube.
7. The warmed argon-helium knife of claim 6, wherein the heat exchange coil has a tube diameter of 1mm to 10mm and a length of 0.5m to 10 m.
8. The warmed argon-helium knife of claim 7, wherein the heat exchange coil has a tube diameter of 3mm to 5mm and a length of 3m to 8 m.
9. The cryosurgical argon-helium knife of claim 3, wherein the temperature measuring element is a thermal resistance temperature measuring element or a thermocouple temperature measuring element and the heating element is an alloy heating wire or a PTC heating plate or a ceramic heating chip or a led tube or a silicon controlled component.
10. The temperature-elevating argon-helium knife according to claim 2, wherein the temperature control unit is a PLC temperature controller or a node temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394766.7U CN210871998U (en) | 2019-08-26 | 2019-08-26 | Argon-helium knife capable of heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394766.7U CN210871998U (en) | 2019-08-26 | 2019-08-26 | Argon-helium knife capable of heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210871998U true CN210871998U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921394766.7U Active CN210871998U (en) | 2019-08-26 | 2019-08-26 | Argon-helium knife capable of heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210871998U (en) |
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2019
- 2019-08-26 CN CN201921394766.7U patent/CN210871998U/en active Active
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