CN114631860A - Automatic heating device of medical carbon dioxide pneumoperitoneum machine - Google Patents
Automatic heating device of medical carbon dioxide pneumoperitoneum machine Download PDFInfo
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- CN114631860A CN114631860A CN202210364141.6A CN202210364141A CN114631860A CN 114631860 A CN114631860 A CN 114631860A CN 202210364141 A CN202210364141 A CN 202210364141A CN 114631860 A CN114631860 A CN 114631860A
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- carbon dioxide
- pneumoperitoneum
- heater
- machine
- heating
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 232
- 238000010438 heat treatment Methods 0.000 title claims abstract description 126
- 208000005646 Pneumoperitoneum Diseases 0.000 title claims abstract description 117
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 116
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 116
- 238000003303 reheating Methods 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000741 silica gel Substances 0.000 claims description 20
- 229910002027 silica gel Inorganic materials 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000001580 bacterial effect Effects 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 3
- 206010008531 Chills Diseases 0.000 abstract description 2
- 206010003119 arrhythmia Diseases 0.000 abstract description 2
- 230000006793 arrhythmia Effects 0.000 abstract description 2
- 230000036760 body temperature Effects 0.000 abstract description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 9
- 238000005538 encapsulation Methods 0.000 description 8
- 210000000683 abdominal cavity Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0281—Abdominal wall lifters
Abstract
The invention discloses an automatic heating device of a medical carbon dioxide pneumoperitoneum machine, which relates to the technical field of medical instruments and comprises a pneumoperitoneum machine host, a heating device and a heating device, wherein the pneumoperitoneum machine host can heat the interior of the machine for input carbon dioxide; wherein, pneumoperitoneum host computer includes: the built-in heater is arranged in the pneumoperitoneum main machine, the outside of the built-in heater is wrapped with a heat insulation material, and a plurality of PTC heating sheets are installed in the built-in heater in a staggered mode so as to heat carbon dioxide gas in the built-in heater; at least two temperature sensors which are arranged in the internal heater near the air outlet to detect the temperature of the carbon dioxide in the internal heater; an external heating pipeline for pipeline reheating of carbon dioxide output by the pneumoperitoneum host machine, so that carbon dioxide gas input to a human body is maintained at 37 +/-0.5 ℃; the invention can ensure that the carbon dioxide gas input into the human body is isothermal with the human body, prevent the negative effects of body temperature reduction, arrhythmia, low-temperature shivering and the like, accelerate wound recovery, reduce surgical risks and ensure the safety of patients.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an automatic heating device of a medical carbon dioxide pneumoperitoneum machine.
Background
Minimally invasive surgery is the first choice surgical scheme of medical institutions at present, and because the minimally invasive surgery has small wound and quick recovery, the risk of infection is greatly reduced. In the minimally invasive surgery, an endoscope camera system is used for acquiring images in a body, the images are displayed on a medical monitor, and in order to provide a surgical field and an instrument operating space for an operator, high-purity carbon dioxide gas is required to be filled when the minimally invasive surgery is performed on an abdominal cavity, so that the pressure of the abdominal cavity reaches 10-15mmHg, and the minimally invasive surgery can be performed safely and conveniently.
The carbon dioxide used in minimally invasive surgery is stored in a compressed liquid state of a steel cylinder, the carbon dioxide is decompressed and output to a pneumoperitoneum machine through a pressure reducing valve during surgery, the pneumoperitoneum machine controls pressure and transmits the carbon dioxide to the abdominal cavity of a patient through controlling flow, the temperature of the carbon dioxide output by the steel cylinder through decompression is very low although the carbon dioxide absorbs great heat and turns into gas, the temperature of the carbon dioxide is very low, the environment temperature is 18 ℃ when the ambient temperature is 18 ℃, the output port temperature is 6 ℃ when the flow is 20L/min, the output port temperature is-4 ℃ when the flow is 40L/min, the low-temperature pneumoperitoneum can heal the wound of the patient, and the heart, the gastrointestinal tract have great influence, so the carbon dioxide gas is required to be heated in a controlled manner.
The existing carbon dioxide pneumoperitoneum machine adopts a mode of heating in the machine, the temperature of a heater is controlled to be 37 ℃, carbon dioxide gas continuously flows during minimally invasive surgery, the carbon dioxide gas cannot be heated to 37 ℃ due to short-time flowing heating, the temperature is reduced by 5-6 ℃ after the carbon dioxide gas passes through a pipeline with the length of 3 meters and is input into a human body, experiments prove that the carbon dioxide gas is heated to 37 ℃ in the machine under the most ideal condition, the temperature can be reduced to room temperature after the carbon dioxide gas passes through the pipeline with the length of 3 meters, and the effect of isothermal pneumoperitoneum cannot be achieved.
Disclosure of Invention
The invention relates to an automatic heating device of a medical carbon dioxide pneumoperitoneum machine, which solves the technical problems that the carbon dioxide pneumoperitoneum machine in the prior art adopts a machine internal heating mode, the temperature of a heater is controlled to be 37 ℃, carbon dioxide gas flows continuously during minimally invasive surgery, the carbon dioxide gas cannot be heated to 37 ℃ due to short-time flowing heating, the temperature is reduced by 5-6 ℃ after being input into a human body through a pipeline with the length of 3 meters, the temperature can be reduced to room temperature after passing through the pipeline with the length of 3 meters, and the effect of isothermal pneumoperitoneum cannot be achieved, and the technical effect that the carbon dioxide gas is heated to 37 +/-0.5 ℃ and the operation achieves isothermal pneumoperitoneum is achieved.
According to an aspect of the present invention, there is provided an automatic heating apparatus for a medical carbon dioxide pneumoperitoneum machine, comprising:
-a pneumoperitoneum machine host machine capable of machine internal heating of the carbon dioxide input;
wherein, pneumoperitoneum host computer includes:
the built-in heater is arranged inside the pneumoperitoneum machine host, the outside of the built-in heater is wrapped with a heat insulation material, and a plurality of PTC heating sheets are installed inside the built-in heater in a staggered mode so as to heat carbon dioxide gas in the built-in heater;
-at least two temperature sensors arranged inside the in-machine heater at the gas outlet to detect the temperature of the carbon dioxide inside the in-machine heater;
-an in-machine heater air inlet provided at the left end of the in-machine heater for connection to an external carbon dioxide gas source;
a pneumoperitoneum tube interface connected to the right side of the pneumoperitoneum main machine through a gas transmission pipeline and used for connecting with an external heating pipeline to output heated carbon dioxide;
the controller is arranged in the pneumoperitoneum main machine and used for receiving the detection signal of the temperature sensor and controlling the heating temperature of the PTC heating sheet in the built-in heater;
-an external heating circuit to re-heat the carbon dioxide output from the pneumoperitoneum main unit so that the carbon dioxide gas input to the human body is maintained at 37 ℃ ± 0.5 ℃.
Further, the external heating line includes:
the pneumoperitoneum tube is made of a silica gel material and is used for receiving carbon dioxide output by the pneumoperitoneum host machine and inputting the carbon dioxide to a human body;
-a spiral heating wire for heating and maintaining the outer circumference of the pneumoperitoneum tube;
-a line temperature sensor for sensing the temperature of carbon dioxide in the pneumoperitoneum tube and controlling the heating temperature of the spiral heater wire;
an aircraft plug connected to the spiral heater wire and the line temperature sensor by a heating sensor wire and to the pneumoperitoneum mainframe to power the spiral heater wire.
Furthermore, two ends of the spiral heating wire are respectively wrapped with silica gel rubber, namely a first silica gel rubber and a second silica gel rubber, and the pipeline temperature sensor is tightly attached to the spiral heating wire and is arranged in one silica gel rubber.
Furthermore, a bacterial filter is arranged on the gas transmission pipeline and can carry out bacterial filtration on carbon dioxide gas output by heating the pneumoperitoneum main machine.
Furthermore, a partition plate is arranged between the PTC heating sheet and the temperature sensor in the built-in heater, and the upper part and the lower part of the partition plate are respectively provided with an inclined exhaust port.
Further, the built-in heater is made of a metal material.
Furthermore, the exhaust end of the air inlet of the built-in heater is also connected with an air box, and the air box is provided with a plurality of air outlets along the uniform annular array of the whole body.
Furthermore, the air inlet end of the air conveying pipeline is connected with an air collecting head, and the air collecting head is located between the temperature sensors.
Further, the spiral heating wire is flat in shape.
Further, the working method of the automatic heating device of the medical carbon dioxide pneumoperitoneum machine comprises the following steps:
the pneumoperitoneum host machine heats the carbon dioxide input from the air inlet of the internal heater and outputs the carbon dioxide;
the bacterial filter on the gas transmission pipeline on the right side of the pneumoperitoneum host machine can carry out bacterial filtration on the carbon dioxide gas output by heating;
the external heating pipeline is connected with the pneumoperitoneum interface to carry out pipeline reheating on carbon dioxide output by the pneumoperitoneum host machine, and finally the carbon dioxide gas input into the human body from the pneumoperitoneum is maintained at 37 +/-0.5 ℃.
The invention has the beneficial effects that:
the device can ensure that carbon dioxide gas input into a human body is equal to the temperature of the human body by matching the internal heater 1 and the external heating pipeline, prevent the negative effects of body temperature reduction, arrhythmia, low-temperature shivering and the like, accelerate wound recovery, reduce surgical risks and ensure the safety of patients.
Drawings
Fig. 1 is an overall configuration view of an automatic heating apparatus for a medical carbon dioxide pneumoperitoneum machine according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the internal structure of the built-in heater according to the embodiment of the present invention.
Fig. 3 is a schematic view of the connection structure of the pneumoperitoneum tube and the gas check according to the embodiment of the present invention.
Fig. 4 is an enlarged schematic structural diagram of the portion a in fig. 3 according to the embodiment of the present invention.
Fig. 5 is a side view of a gas stop according to an embodiment of the present invention.
Fig. 6 is a diagram illustrating a method for operating an automatic heating device of a medical carbon dioxide pneumoperitoneum machine according to an embodiment of the present invention.
In the figure: 1. an in-machine heater; 2. an air inlet of the heater in the machine; 3. a first PTC heating sheet; 4. a second PTC heating sheet; 5. a third PTC heating sheet; 6. a first temperature sensor; 7. a second temperature sensor; 8. a bacterial filter; 9. a pneumoperitoneum tube interface; 10. a spiral heating wire; 11. a pneumoperitoneum tube; 12. a pipeline temperature sensor; 13. first silica gel encapsulation; 14. second silica gel encapsulation; 15. heating the sensing wire; 16. an aviation plug; 17. a pneumoperitoneum host machine; 18. a gas box; 19. an air outlet; 20. a partition plate; 21. an inclined exhaust port; 22. a gas collecting head; 23. a gas pipeline; 24. a gas check;
241. a cylinder; 242. a stop lever pin; 243. a check plate; 244. a flange; 245. a gas flow channel; 246. and (4) a groove.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
In this embodiment, there is provided an automatic heating device for a medical carbon dioxide pneumoperitoneum machine, as shown in fig. 1-2, comprising:
a pneumoperitoneum machine host 17 which can perform machine internal heating of the carbon dioxide input;
wherein, pneumoperitoneum host computer 17 includes:
the built-in heater 1 is arranged inside the pneumoperitoneum host machine 17, the outside of the built-in heater is wrapped with a heat insulation material, and a plurality of PTC heating sheets are installed inside the built-in heater in a staggered mode so as to heat carbon dioxide gas in the built-in heater 1;
at least two temperature sensors arranged inside the built-in heater 1 near the gas outlet to detect the temperature of the carbon dioxide inside the built-in heater 1;
an in-machine heater air inlet 2 arranged at the left end of the in-machine heater 1 for connection to an external carbon dioxide gas source;
a pneumoperitoneum tube interface 9 connected to the right side of the pneumoperitoneum main unit 17 through a gas transmission pipe 23 for connection with an external heating line to output heated carbon dioxide;
a controller, arranged inside the pneumoperitoneum host 17, for receiving the detection signal of the temperature sensor and controlling the heating temperature of the PTC heating sheet in the built-in heater 1;
an external heating circuit to conduct a tubular reheating of the carbon dioxide gas outputted from the pneumoperitoneum main unit 17 so that the carbon dioxide gas inputted to the human body is maintained at 37 ℃ ± 0.5 ℃.
In this embodiment, the inside temperature sensor who leans on gas outlet department of built-in heater 1 is provided with two, specifically be first temperature sensor 6 and second temperature sensor 7, two temperature sensor symmetries set up and lean on gas outlet department in built-in heater 1 is inside, and can independent work gather the interior carbon dioxide temperature parameter of built-in heater 1, and carry respectively to feedback to the controller, it is unreliable to have avoided the detection parameter that reasons such as single temperature sensor inefficacy caused, and then improve the reliability of PTC heating plate heating control work in the controller control built-in heater 1.
In this embodiment, the number of the PTC heating sheets inside the internal heater 1 is three, and the first PTC heating sheet 3, the second PTC heating sheet 4 and the third PTC heating sheet 5 are respectively provided, and the staggered installation of the plurality of PTC heating sheets can significantly enhance the heating time of the internal heater 1 for the internal input carbon dioxide, thereby improving the heating efficiency of the carbon dioxide gas, moreover, the PTC heating sheets themselves have more toothed surfaces, and can increase the heating area, and improve the heating effect of the carbon dioxide gas.
In this embodiment, the controller may be selected from, but not limited to, a temperature control chip or a temperature controller, which can receive the detection data signal of the internal temperature sensor of the internal heater 1 and compare the detection data signal with the temperature parameter stored in its internal setting, such as: when the carbon dioxide temperature data detected by the temperature sensor in the built-in heater 1 is lower than the internal preset value, the PTC heating sheet in the built-in heater 1 is automatically controlled to heat, so that the temperature of the carbon dioxide in the built-in heater 1 is increased to the preset temperature.
In this embodiment, the external heating pipeline includes:
a pneumoperitoneum tube 11 made of a silica gel material for receiving carbon dioxide output from the pneumoperitoneum host 17 and inputting the carbon dioxide to a human body;
a spiral heating wire 10 for heating and keeping the circumference of the pneumoperitoneum tube 11 warm;
a line temperature sensor 12 for detecting the temperature of carbon dioxide in the pneumoperitoneum tube 11 and controlling the heating temperature of the spiral heating wire 10;
an aircraft plug 16 connected to the spiral heater wire 10 and the line temperature sensor 12 by a heating sensor wire 15 and to a pneumoperitoneum mainframe 17 to power the spiral heater wire 10.
In this embodiment, the spiral heating wire 10 may be partially or completely wrapped around the circumference of the pneumoperitoneum tube 11 to complete the local heating or the overall heating of the pneumoperitoneum tube 11, and only the carbon dioxide gas input into the human body from the pneumoperitoneum tube 11 is required to be maintained at 37 ℃ ± 0.5 ℃.
In the present embodiment, since the line temperature sensor 12 is connected to the aero plug 16 through the heating sensor line 15, and the aero plug 16 is connected to the pneumoperitoneum main unit 17, the controller provided inside the pneumoperitoneum main unit 17 can receive the detection signal of the line temperature sensor 12 and control the heating temperature of the spiral heating line 10 on the outer periphery of the pneumoperitoneum tube 11.
In this embodiment, the two ends of the spiral heating wire 10 are respectively wrapped with a silica gel encapsulation, which is a first silica gel encapsulation 13 and a second silica gel encapsulation 14, and the pipeline temperature sensor 12 is mounted inside one of the silica gel encapsulations by clinging to the spiral heating wire 10. The pipe temperature sensor 12 is installed inside one of the silica gel encapsulation, so that heat loss caused by the fact that the pipe temperature sensor 12 contacts with external air can be avoided, and the accuracy of the pipe temperature sensor 12 in detecting the temperature of the spiral heating wire 10 is improved.
In this embodiment, the gas pipeline 23 is further provided with a bacteria filter 8, which can perform bacteria filtration on the carbon dioxide gas heated and outputted by the pneumoperitoneum main unit 17.
In the present embodiment, as shown in fig. 2, a partition plate 20 is further disposed between the PTC heating sheet and the temperature sensor in the internal heater 1, and inclined exhaust ports 21 are respectively disposed at upper and lower portions of the partition plate 20.
In this embodiment, the partition plate 20 between the PTC heating sheet and the temperature sensor can increase the residence time of carbon dioxide in the internal heater 1 to a certain extent, thereby ensuring the heating effect of the PTC heating sheet on carbon dioxide in the internal heater 1, moreover, the upper and lower parts of the partition plate 20 are respectively provided with the inclined exhaust port 21, the exhaust direction of the inclined exhaust port 21 is directed to the temperature sensor, thereby realizing the exhaust of heated carbon dioxide, and ensuring the accuracy of the temperature sensor in the internal heater 1 for detecting the temperature of the heated carbon dioxide.
In the present embodiment, the built-in heater 1 is made of a metal material. The built-in heater 1 can be rectangular, rectangular or special-shaped; the metal material of the heater 1 can be selected from stainless steel, aluminum alloy and other metal materials.
In this embodiment, as shown in fig. 2, the exhaust end of the air inlet 2 of the internal heater is further connected to an air box 18, and the air box 18 is provided with a plurality of air outlets 19 in a uniform annular array along the circumference thereof.
In this embodiment, the exhaust end of the air inlet 2 of the internal heater is connected to the air box 18, and the air box 18 is provided with a plurality of air outlets 19 around the body, so that the carbon dioxide entering from the air inlet 2 of the internal heater is sprayed out from the air outlets 19 to different directions in the internal heater 1 after flowing into the air box 18, so that the carbon dioxide in the internal heater 1 is filled in the whole cavity in a short time, the concentration of the carbon dioxide in a unit area is dispersed, and the heating efficiency of the PTC heating sheet on the carbon dioxide is further ensured.
In this embodiment, as shown in fig. 2, a gas collecting head 22 is further connected to the gas inlet end of the gas pipeline 23, and the gas collecting head 22 is located between the temperature sensors.
In this embodiment, the gas collecting head 22 located at the left end of the gas transmission pipeline 23 can quickly collect the heated carbon dioxide gas ejected from the inclined exhaust port 21, thereby ensuring the carbon dioxide gas transmission efficiency of the gas transmission pipeline 23.
In the present embodiment, the spiral heating wire 10 has a flat shape. The flat spiral heating wire 10 is more easily attached to and wound around the outer circumference of the pneumoperitoneum tube 11, thereby improving the heating and heat-insulating effects of the pneumoperitoneum tube 11.
The automatic heating device of the medical carbon dioxide pneumoperitoneum machine in the embodiment is used as a medical carbon dioxide conveying device, and needs to be considered as follows: when the pneumoperitoneum machine is shut down accidentally or the abdominal pressure of a patient is too high, the gas in the abdominal cavity of the patient also flows in the reverse direction, and blood or body fluid in the abdominal cavity of the patient flows into the pneumoperitoneum machine along with the gas, so that the inside of the pneumoperitoneum machine is polluted, and even the pollutant causes cross infection among patients:
therefore, it is further provided that, as shown in fig. 3-5, a gas check 24 is further installed in the pneumoperitoneum tube 11 according to the embodiment of the present invention, which can close the gas flow in the pneumoperitoneum tube 11 in time when the gas in the abdominal cavity of the patient is flowing in the reverse direction, so as to achieve the effect of gas reflux check;
wherein the gas stop 24 comprises:
a cylinder 241 transversely installed inside the pneumoperitoneum tube 11 and closely matched with the inner wall of the pneumoperitoneum tube 11;
a plurality of gas channels 245, each of which is arc-shaped and is uniformly arranged on the column 241 in an annular array, so as to realize gas circulation between the left end and the right end of the column 241;
a limit rod pin 242 inserted into the center of the column 241, and having a check plate 243 fixedly connected to the right end thereof;
a check plate 243 which is separable from or contactable with a right end surface of the cylinder 241 to realize gas circulation or check between left and right ends of the cylinder 241;
further, the left end surface of the check plate 243 is further provided with a flange 244, and the right end surface of the cylinder 241 is further provided with a groove 246 matching with the flange 244. When the check plate 243 abuts against the right end surface of the cylinder 241, the flange 244 may be embedded into the groove 246 of the right end surface of the cylinder 241, thereby improving the check sealing effect of the check plate 243 on the gas.
It should be noted that the check plate 243 may be circular, rectangular or special-shaped, and only the left end surface of the check plate 243 needs to completely cover the air outlets at the right ends of all the gas channels 245; and since the check plate 243 can be round, rectangular or irregular, the flange 244 of the left end face of the check plate 243 and the groove 246 of the right end face of the column 241 are also round, rectangular or irregular.
In this embodiment, as shown in fig. 6, there is further provided an operating method of the automatic heating apparatus for a medical carbon dioxide pneumoperitoneum machine, including:
the pneumoperitoneum host machine 17 heats the carbon dioxide input from the air inlet 2 of the internal heater and outputs the carbon dioxide;
the bacterial filter 8 on the right gas transmission pipeline 23 of the pneumoperitoneum host 17 can carry out bacterial filtration on the carbon dioxide gas output by heating;
the external heating pipeline is connected with the pneumoperitoneum interface 9 to perform pipeline reheating on the carbon dioxide output by the pneumoperitoneum host 17, and finally the carbon dioxide gas input to the human body from the pneumoperitoneum pipe 11 is maintained at 37 ℃ +/-0.5 ℃.
The working principle of the invention is as follows: carbon dioxide gas heated by a heater 1 in a pneumoperitoneum host 17 is filtered by an external bacterial filter 8 and is conveyed to a pneumoperitoneum tube 11 through a pneumoperitoneum tube interface 9, a flat spiral heating wire 10 is wound on the outer surface of the pneumoperitoneum tube 11, two ends of the spiral heating wire 10 are encapsulated by silica gel, an internal pipeline temperature sensor 12 and the spiral heating wire 10 which are installed on one silica gel encapsulation are connected to a heating sensing wire 15 and are connected with an aviation plug 16, the aviation plug 16 is connected to the pneumoperitoneum host 17, the pneumoperitoneum host 17 can heat the spiral heating wire 10 by supplying power to the spiral heating wire, and the heating temperature is detected and controlled by a pipeline temperature sensor 12 and a controller in the pneumoperitoneum host 17, so that the carbon dioxide gas can be controlled at the required temperature, and isothermal pneumoperitoneum of a minimally invasive surgery is realized.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The utility model provides a medical carbon dioxide pneumoperitoneum machine self-heating device which characterized in that includes:
-a pneumoperitoneum machine host (17) capable of machine internal heating of the carbon dioxide input;
wherein, pneumoperitoneum host computer (17) includes:
the built-in heater (1) is arranged inside the pneumoperitoneum main machine (17), the outside of the built-in heater is wrapped with a heat insulation material, and a plurality of PTC heating sheets are installed inside the built-in heater in a staggered mode so as to heat carbon dioxide gas in the built-in heater (1);
-at least two temperature sensors arranged inside the in-machine heater (1) near the gas outlet to detect the temperature of carbon dioxide inside the in-machine heater (1);
-a built-in heater air inlet (2) arranged at the left end of the built-in heater (1) for connecting an external carbon dioxide gas source;
-a pneumoperitoneum interface (9) connected to the right side of the pneumoperitoneum machine host (17) through a gas transmission pipe (23) for connection to an external heating line to output heated carbon dioxide;
a controller arranged inside the pneumoperitoneum host machine (17) and used for receiving the detection signal of the temperature sensor and controlling the heating temperature of the PTC heating sheet in the built-in heater (1);
-an external heating circuit to re-heat the carbon dioxide output from the pneumoperitoneum host machine (17) so that the carbon dioxide gas input to the human body is maintained at 37 ℃ ± 0.5 ℃.
2. The automatic heating device for medical carbon dioxide pneumoperitoneum according to claim 1, wherein the external heating pipeline comprises:
-a pneumoperitoneum tube (11) made of silica gel material for receiving carbon dioxide output by the pneumoperitoneum host machine (17) and inputting carbon dioxide to the human body;
-a spiral heating wire (10) for heating and keeping warm the outer circumference of the pneumoperitoneum tube (11);
-a line temperature sensor (12) for sensing the temperature of carbon dioxide in the pneumoperitoneum tube (11) and controlling the heating temperature of the helical heating wire (10);
-an aircraft plug (16) connected to the spiral heater wire (10) and the line temperature sensor (12) by a heating sensor wire (15) and connected to a pneumoperitoneum machine host (17) to power the spiral heater wire (10).
3. The automatic heating device for the medical carbon dioxide pneumoperitoneum machine according to claim 2, wherein the two ends of the spiral heating wire (10) are respectively wrapped with a silica gel rubber, which is a first silica gel rubber (13) and a second silica gel rubber (14), and the pipeline temperature sensor (12) is mounted inside one of the silica gel rubber close to the spiral heating wire (10).
4. The automatic heating device for the medical carbon dioxide pneumoperitoneum machine according to claim 1, wherein a bacteria filter (8) is further installed on the gas transmission pipeline (23) and can carry out bacteria filtration on carbon dioxide gas output by heating of the pneumoperitoneum main machine (17).
5. The automatic heating device for the medical carbon dioxide pneumoperitoneum machine according to claim 1, wherein a partition plate (20) is further arranged between the PTC heating sheet and the temperature sensor in the built-in heater (1), and an inclined exhaust port (21) is respectively arranged at the upper part and the lower part of the partition plate (20).
6. The automatic heating device for a medical carbon dioxide pneumoperitoneum according to claim 1 or 5, characterized in that the built-in heater (1) is made of metal material.
7. The automatic heating device for the medical carbon dioxide pneumoperitoneum machine according to claim 1, wherein the exhaust end of the air inlet (2) of the internal heater is further connected with an air box (18), and the air box (18) is provided with a plurality of air outlets (19) along the uniform annular array of the circumference.
8. The automatic heating device of a medical carbon dioxide pneumoperitoneum machine according to claim 1 or 4, wherein a gas collecting head (22) is connected to the gas inlet end of the gas transmission pipeline (23), and the gas collecting head (22) is located between the temperature sensors.
9. The automatic heating device for a medical carbon dioxide pneumoperitoneum according to claim 2, wherein the spiral heating wire (10) is flat in shape.
10. The automatic heating device for medical carbon dioxide pneumoperitoneum machine according to any one of claims 1-9, wherein the working method of the automatic heating device for medical carbon dioxide pneumoperitoneum machine comprises:
the pneumoperitoneum host machine (17) heats the carbon dioxide input from the air inlet (2) of the internal heater and outputs the heated carbon dioxide;
the bacterial filter (8) on the gas transmission pipeline (23) at the right side of the pneumoperitoneum host machine (17) can carry out bacterial filtration on the carbon dioxide gas output by heating;
the external heating pipeline is connected with the pneumoperitoneum interface (9) to carry out pipeline reheating on carbon dioxide output by the pneumoperitoneum host machine (17), and finally, carbon dioxide gas input into a human body from the pneumoperitoneum pipe (11) is maintained at 37 +/-0.5 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364141.6A CN114631860A (en) | 2022-04-07 | 2022-04-07 | Automatic heating device of medical carbon dioxide pneumoperitoneum machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364141.6A CN114631860A (en) | 2022-04-07 | 2022-04-07 | Automatic heating device of medical carbon dioxide pneumoperitoneum machine |
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| Publication Number | Publication Date |
|---|---|
| CN114631860A true CN114631860A (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210364141.6A Withdrawn CN114631860A (en) | 2022-04-07 | 2022-04-07 | Automatic heating device of medical carbon dioxide pneumoperitoneum machine |
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| Country | Link |
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| CN (1) | CN114631860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553430A (en) * | 2024-01-11 | 2024-02-13 | 科弛医疗科技(北京)有限公司 | Gas heating device and gas heating method for pneumoperitoneum machine |
-
2022
- 2022-04-07 CN CN202210364141.6A patent/CN114631860A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553430A (en) * | 2024-01-11 | 2024-02-13 | 科弛医疗科技(北京)有限公司 | Gas heating device and gas heating method for pneumoperitoneum machine |
| CN117553430B (en) * | 2024-01-11 | 2024-04-19 | 科弛医疗科技(北京)有限公司 | Gas heating device and gas heating method for pneumoperitoneum machine |
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Application publication date: 20220617 |
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