CN218923470U - Temperature control system for pneumoperitoneum machine and pneumoperitoneum machine - Google Patents
Temperature control system for pneumoperitoneum machine and pneumoperitoneum machine Download PDFInfo
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- CN218923470U CN218923470U CN202221944724.8U CN202221944724U CN218923470U CN 218923470 U CN218923470 U CN 218923470U CN 202221944724 U CN202221944724 U CN 202221944724U CN 218923470 U CN218923470 U CN 218923470U
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Abstract
The utility model discloses a temperature control system for a pneumoperitoneum machine and the pneumoperitoneum machine. Wherein the temperature control system includes: the gas storage heating device is provided with a gas storage chamber, a heating piece is arranged in the gas storage chamber, a gas outlet of the gas storage heating device is communicated with the electromagnetic directional valve, and a first temperature sensor is connected with the gas outlet of the gas storage heating device; the second temperature sensor is connected with the first air outlet of the electromagnetic directional valve; the third temperature sensor is connected with the second air outlet of the electromagnetic directional valve; and a control device.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a temperature control system for a pneumoperitoneum machine and the pneumoperitoneum machine.
Background
Pneumoperitoneum machine is one of the necessary medical instruments in laparoscopic surgery, is used for inputting CO2 gas into the abdominal cavity of a patient and maintaining certain pressure, so that the front abdominal wall of the patient is too high, and provides space for surgical operation. In use, since the temperature of the CO2 gas delivered by the pneumoperitoneum machine is generally lower than the human body temperature, preheating of the gas is required. In the prior art, the adopted gas heating structure is formed by winding the resistance wire outside the gas transmission pipe for heating, the heating efficiency of the heating structure is low, the temperature is inconvenient to control, and the waste heat of the heating wire is easy to cause harm to doctors.
Disclosure of Invention
In order to solve at least one technical problem in the prior art, the embodiment of the utility model provides a temperature control system for a pneumoperitoneum machine and the pneumoperitoneum machine. The technical proposal is as follows:
in a first aspect, a temperature control system for a pneumoperitoneum machine is provided, comprising:
the gas storage heating device, gas storage heating device is formed with the gas receiver, be equipped with the heating piece in the gas receiver, gas storage heating device's air inlet and the gas outlet intercommunication of air supply device, gas storage heating device's gas outlet and electromagnetic reversing valve intercommunication, the electromagnetic reversing valve includes: the first air outlet of the electromagnetic reversing valve is communicated with the pneumoperitoneum needle, and the second air outlet of the electromagnetic reversing valve is communicated with the puncture outfit and the circulating air pump;
the first temperature sensor is connected with the air outlet of the air storage heating device;
the second temperature sensor is connected with the first air outlet of the electromagnetic directional valve;
the third temperature sensor is connected with the second air outlet of the electromagnetic directional valve;
the control device is connected with the gas storage heating device, the first temperature sensor, the electromagnetic reversing valve, the second temperature sensor and the third temperature sensor, and is suitable for controlling the heating piece to heat according to temperature sensing signals of the first temperature sensor and the second temperature sensor or controlling the heating piece to heat according to temperature sensing signals of the first temperature sensor and the third temperature sensor.
Further, the air reservoir comprises: a first gas storage channel and a second gas storage channel;
the air inlet of the first air storage channel is communicated with the circulating air pump, and the air outlet of the first air storage channel is communicated with the second air outlet of the electromagnetic directional valve;
the air inlet of the second air storage channel is communicated with the air outlet of the air source device, and the air outlet of the second air storage channel is communicated with the first air outlet of the electromagnetic directional valve. The heating element is at least partially arranged in the second gas storage channel.
Further, an air inlet and an air outlet of the first air storage channel are formed on one side of the air storage heating device, and an air inlet and an air outlet of the second air storage channel are arranged on the other side opposite to the air inlet and the air outlet of the first air storage channel
Further, the first gas storage channel and the second gas storage channel each include: the gas storage device comprises a plurality of first channel parts and second channel parts which are connected end to end, wherein the extending direction of the axis of the first channel parts is perpendicular to the extending direction of the axis of the second channel parts, and the diameter of the first channel parts of the second gas storage channels is smaller than that of the second channel parts.
Further, an insertion port is formed at one end of the gas storage heating device, the second gas storage channel forms a mounting channel communicated with the insertion port, the heating element is inserted into the mounting channel through the insertion port, and the mounting channel penetrates through at least two first channel portions.
Further, an air inlet of the air storage heating device is connected with a fourth temperature sensor.
Further, a first filtering device is communicated between the air inlet of the air storage heating device and the air outlet of the air source device.
Further, the puncture outfit is formed with air inlet channel, exhaust gas channel, pressure measurement passageway, exhaust gas channel's air inlet with the second gas outlet intercommunication of electromagnetic directional valve, exhaust gas channel's gas outlet with the circulation air pump intercommunication.
Further, a second filtering device is communicated between the smoke discharging channel and the circulating air pump.
In a second aspect, there is provided a pneumoperitoneum machine comprising a temperature control system as set out in any of the first aspects.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:
1. the temperature control system disclosed by the embodiment of the utility model provides a novel gas storage heating device, and improves the heating efficiency;
2. according to the temperature control system disclosed by the embodiment of the utility model, the temperature sensors are arranged at a plurality of positions of the pneumoperitoneum machine, so that the temperature can be conveniently controlled, and the stability of the gas temperature is maintained;
3. the temperature control system disclosed by the embodiment of the utility model adopts the heating element which is internally arranged in the gas storage heating device to heat the gas, so that the damage to a user can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a temperature control system of a pneumoperitoneum machine provided by an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a gas storage heating device according to an embodiment of the present utility model;
fig. 3 is a schematic view of the channel arrangement of the puncture outfit according to the embodiment of the present utility model.
In the figure:
1, an air source device; 2 pneumoperitoneum needle; 3, a puncture outfit; 4, an electromagnetic reversing valve; 5 a control device; a circulating air pump; 7, a first filtering device; 8 a second filtering device; 9 a first auxiliary controller (controller 2); 10 a second auxiliary controller (controller 1);
101 a gas storage heating device; 102 a first temperature sensor; 103 a second temperature sensor; 104 a third temperature sensor; a fourth temperature sensor 105; 106 a pressure relief device; 107 switching a valve; 108 proportional valve; 109 a first bleed valve; 110 a second bleed valve; 111 safety air valve; 112 a one-way valve; 113 a first pressure sensor; 114 a second pressure sensor; 115 a third pressure sensor; 116 a fourth pressure sensor; 117 a fifth pressure sensor; 118 a sixth pressure sensor; a display panel 119; upgrade port 120; an operation panel 121;
1011 first gas storage channels; 1012 a second gas storage channel; 1013 interface; 1014 mounting channels; 1015 heating elements;
a first channel portion; b a second channel portion.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiments of the present utility model, the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the expressions "first" and "second" are merely used for convenience of description, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.
In order to solve the problems of low gas heating efficiency, poor temperature control effect and the like of the existing pneumoperitoneum machine, the embodiment of the utility model discloses a temperature control system for the pneumoperitoneum machine, which comprises the following specific technical scheme:
as shown in fig. 1, a temperature control system for a pneumoperitoneum machine includes: a gas storage heating device 101, a first temperature sensor 102, a second temperature sensor 103, a third temperature sensor 104, and a control device 5. Wherein, gas storage heating device 101 is used for heating gas, includes: an air reservoir and a heating element 1015. The air storage chamber of the air storage heating device 101 is respectively communicated with the air inlet of the air storage heating device 101 and the air outlet of the air storage heating device 101. The air inlet of the air storage heating device 101 is communicated with the air outlet of the air source device 1, and the air source device 1 is used for generating and providing air for the pneumoperitoneum machine. The gas outlet of the gas storage heating device 101 is connected with a first temperature sensor 102, and the first temperature sensor 102 is used for detecting the temperature of the gas heated by the gas storage heating device 101. The gas outlet of the gas storage heating device 101 is also communicated with the gas inlet of the electromagnetic directional valve 4, and the electromagnetic directional valve 4 comprises: a first air outlet and a second air outlet. In general, the pneumoperitoneum machine includes two working modes, one is a working mode operated by the pneumoperitoneum machine, the other is a working mode operated by the puncture outfit 3, the electromagnetic directional valve 4 is used for switching the two working modes of the pneumoperitoneum machine by the pneumoperitoneum needle 2 or the puncture outfit 3, wherein a first air outlet of the electromagnetic directional valve 4 is communicated with the pneumoperitoneum needle 2, and a second air outlet of the electromagnetic directional valve 4 is communicated with the puncture outfit 3. A circulating air pump 6 is also communicated between the second air outlet and the puncture outfit 3, and the circulating air pump 6 is used for circulating the puncture outfit 3 sucked out between the air storage heating device 101 and the puncture outfit 3. The first air outlet and the second air outlet of the electromagnetic directional valve 4 are also respectively connected with a second temperature sensor 103 and a third temperature sensor 104, which are respectively used for detecting the temperature of the air flowing out of the electromagnetic directional valve 4. The control device 5 is mainly used for controlling the gas storage heating device 101 to heat gas and controlling the pneumoperitoneum machine to switch working modes, and the gas storage heating device 101, the first temperature sensor 102, the second temperature sensor 103, the third temperature sensor 104 and the electromagnetic reversing valve 4 are connected. When the pneumoperitoneum machine operates, the control device 5 controls the pneumoperitoneum machine to switch the working mode of the pneumoperitoneum needle 2 or the working mode of the puncture outfit 3. When the pneumoperitoneum machine is in the working mode of the pneumoperitoneum needle 2, the control device 5 receives temperature sensing signals of the first temperature sensor 102 and the second temperature sensor 103, generates a heating control command according to the temperature sensing signals and sends the heating control command to the gas storage heating device 101 to control the heating piece 1015 to heat; when the pneumoperitoneum machine is in the operation mode of the puncture outfit 3, the control device 5 receives the temperature sensing signals of the first temperature sensor 102 and the third temperature sensor 104, forms a heating control command and sends out a gas storage heating device 101 to control the heating part 1015 to heat.
The gas source device 1 may be CO 2 And (5) an air source. The pneumoperitoneum needle 2 and the puncture device 3 are both operation devices applied to the abdominal cavity of the patient. The air storage chamber of the air storage heating device 101 is mainly used for circulating or storing air, and the air in the air storage chamber can be the air provided by the air source device 1 or the circulating air transmitted from the puncture outfit 3 to the circulating air pump 6. The heating member 1015 may be partially disposed in the air storage chamber, or may be completely disposed in the air storage chamber. The heating element 1015 may be an electrical resistorA heating element 1015 or an induction heating element 1015, etc. The control device 5 may generate an instruction to increase the heating temperature or decrease the heating temperature based on the first temperature sensor 102 and the second temperature sensor 103 or based on the first temperature sensor 102 or the third temperature sensor 104.
In one embodiment, as shown in fig. 2, the air storage chamber of the air storage heating device 101 includes two air storage channels, which are respectively: a first gas storage channel 1011 and a second gas storage channel 1012. The air inlet of the first air storage channel 1011 is communicated with the circulating air pump 6, and the air storage port of the first air storage channel 1011 is communicated with the second air outlet of the electromagnetic directional valve 4. The air inlet of the second air storage channel 1012 is communicated with the air storage port of the air source device 1, and the air outlet of the second air storage channel 1012 is communicated with the first air outlet of the electromagnetic directional valve 4. The second gas storage channel 1012 is provided with a heating member 1015 for heating the gas.
As the first air outlet of the electromagnetic reversing valve 4 is communicated with the pneumoperitoneum needle 2, and the second air outlet is communicated with the puncture outfit 3. Therefore, the two gas storage channels of the gas storage heating device 101 can respectively correspond to the two working modes of the pneumoperitoneum machine, the first gas storage channel 1011 corresponds to the working mode of the puncture outfit 3, and the second gas storage channel 1012 corresponds to the working mode of the pneumoperitoneum needle 2. The gas for conveying the pneumoperitoneum needle 2 and the circulating gas circulating between the gas storage heating device 101 and the puncture outfit 3 can be isolated, so that the two flow direction gases can be heated and controlled respectively. In the embodiment of the present utility model, the heating member 1015 may be disposed only in the second gas storage channel 1012, or the heating member 1015 may be disposed in both the first gas storage channel 1011 and the second gas storage channel 1012. The heating piece 1015 is arranged in the second gas storage channel 1012 only, so that only the gas conveyed to the pneumoperitoneum needle 2 can be heated, and the circulating gas of the puncture outfit 3 can be heated to the first gas storage channel 1011 through the heat conduction of the second gas storage channel 1012, so that the energy consumption of the pneumoperitoneum machine is saved.
Further, in one embodiment, as shown in fig. 2, from the axial section of the gas storage heating device 101, two opposite sides of the gas storage heating device 101 are respectively formed with the gas inlet and the gas outlet of the first gas storage channel 1011 and the gas inlet and the gas outlet of the second gas storage channel 1012, so that the gas inlets of the two gas storage channels are oppositely disposed. The arrangement of the air inlets and the air outlets of the first air storage channel 1011 and the second air storage channel 1012 can avoid the complicated system structure caused by the overlong internal connection path of the temperature control system.
In one embodiment, the first and second gas storage channels 1011 and 1012 are S-shaped or mirror image S-shaped. As shown in fig. 2, the first and second gas storage channels 1011 and 1012 each include: the plurality of first channel parts a and second channel parts b which are connected end to end in sequence, the extending direction of the axis of the first channel part a is perpendicular to the extending direction of the axis of the second channel part b. Further, for the second gas storage channel 1012, the diameter of the first channel portion a between two adjacent second channel portions b thereof is smaller than the diameter of the second channel portion b.
The first gas storage channel 1011 and the second gas storage channel 1012 are configured in an S shape or a mirror image S shape, so that the flow path of the gas in the gas storage heating device 101 can be prolonged, and the heating effect of the gas can be improved. The first and second gas storage channels 1011 and 1012 may be spiral or the like in addition to the shape of the gas storage channels disclosed in the present embodiment. The diameter of the first channel part a between the two second channel parts b is smaller than that of the second channel part b, so that the interval between the gas storage channels in the axial direction of the gas storage heating device 101 is reduced, the contact area between the heating piece 1015 and the gas storage channels is increased, and the gas heating effect is improved.
In one embodiment, a plug-in port 1013 is formed at one end of the gas storage heating device 101, the second gas storage channel 1012 forms a mounting channel 1014 of the heating member 1015 from the plug-in port 1013, the heating member 1015 is inserted into the mounting channel 1014 through the plug-in port 1013, the mounting channel 1014 penetrates at least two first channel portions a, and the heating member 1015 penetrates at least two first channel portions a correspondingly to achieve complete heating of the second gas storage channel 1012.
As described above, the heating element 1015 may be a resistive heating rod or sheet. The heating member 1015 is installed in the second gas storage channel 1012 in an inserting manner, so that the heating member 1015 is convenient to install or detach, and the maintenance of the gas storage heating device 101 is facilitated.
In one embodiment, a fourth temperature sensor 105 is connected between the air inlet of the air storage heating device 101 and the air outlet of the air source device 1. The fourth temperature sensor 105 may be used to detect the initial temperature of the gas generated by the gas source device 1. The fourth temperature sensor 105 may likewise be connected to the control device 5 such that the control device 5 produces heating control instructions in combination with the initial temperature of the gas.
In one embodiment, the circulation pump 6 is connected to an auxiliary controller, which is connected to the control device 5. The auxiliary controller is used for receiving the air pump control instruction generated by the control device 5 and controlling the operation of the circulating air pump 6 according to the air pump control instruction.
In one embodiment, the first filtering device 7 is communicated between the air inlet of the air storage heating device 101 and the air outlet of the air source device 1. The first filtering means 7 serves to filter impurities in the gas entering the gas storage heating means 101.
In one embodiment, as shown in fig. 3, the puncture device 3 is formed of an intake passage, a smoke discharge passage, and a pressure measurement passage. The air inlet of the smoke discharging channel is communicated with the second air outlet of the electromagnetic reversing valve 4, and the air outlet of the smoke discharging channel is communicated with the circulating air pump 6.
As described above, with respect to the puncture outfit 3, it circulates gas through the air inlet passage and discharges smoke in the abdominal cavity of the patient through the smoke exhaust passage, and the pressure measuring passage is used for measuring the pressure in the puncture outfit 3. Smoke sucked from the abdominal cavity in the smoke discharging channel enters the circulating air pump 6 and then enters the gas storage heating device 101 for heating circulation, and then enters the air inlet channel of the puncture outfit 3, thereby forming a gas circulating path.
In one embodiment, the second filter means 8 is in communication between the smoke evacuation channel and the circulation pump 6. The second filter 8 is used for filtering impurities in the smoke sucked out by the puncture outfit 3 and delivering clean gas into the circulation path.
The above, various embodiments of the present disclosure may be combined by selecting one or more of them as needed. The temperature control system disclosed by the utility model is specifically described below in connection with a specific pneumoperitoneum machine application:
as shown in fig. 1, a pneumoperitoneum machine includes a temperature control system for a pneumoperitoneum machine disclosed in the embodiment of the present utility model, and the specific structure is as follows:
pneumoperitoneum machine, comprising: a temperature control system, a pressure control system, a pneumoperitoneum needle 2 and a puncture outfit 3. The air inlet of the pneumoperitoneum machine is communicated with the air source device 1, and the air outlet of the pneumoperitoneum machine is communicated with the pneumoperitoneum needle 2 and the puncture outfit 3 through the electromagnetic directional valve 4. The pneumoperitoneum needle 2 is mainly used for inflating the abdominal cavity of a patient, and the puncture outfit 3 is mainly used for inflating the abdominal cavity of the patient and sucking smoke in the abdominal cavity of the patient. The puncture outfit 3 is provided with an air inlet channel, a smoke discharging channel and a pressure measuring channel, the air inlet of the smoke discharging channel is communicated with the second air outlet of the electromagnetic directional valve 4, and the air outlet of the smoke discharging channel is communicated with the circulating air pump 6. The temperature control system and the pressure control system respectively comprise a temperature controller and a pressure controller which are integrated on the same control device 5, in addition, the control device 5 also comprises a mode switching controller, the mode switching controller is connected with the electromagnetic directional valve 4, the electromagnetic directional valve 4 comprises a first air outlet communicated with the pneumoperitoneum needle 2 and a second air outlet communicated with the puncture outfit 3, and the mode switching controller is used for controlling the opening and closing of the first air outlet or the second air outlet of the electromagnetic directional valve 4 so as to switch the working mode of the pneumoperitoneum machine. The circulation air pump 6 is connected with the control device 5 through a first auxiliary controller 9. The control device 5 is connected to a display panel 119, and the display panel 119 is connected to an upgrade port 120 and an operation panel 121.
The air inlet of the pneumoperitoneum machine is communicated with a first filtering device 7 for filtering impurities of the gas generated by the gas source device 1. The first filter means 7 may in particular comprise a filter cartridge sintered from copper powder. A second filtering device 8 is communicated between the air outlet of the pneumoperitoneum machine and the circulating air pump 6 and is used for filtering the impurities of the circulating gas sucked by the puncture outfit 3. The second filter means 8 may in particular be provided with a filter cartridge comprising a microporous membrane filter layer of PTFE.
The temperature control system includes, in addition to the temperature controller: a gas storage heating device 101, a first temperature sensor 102, a second temperature sensor 103, a third temperature sensor 104, and a fourth temperature sensor 105. Wherein the gas storage heating device 101 is communicated between the first filtering device 7 and the electromagnetic directional valve 4 and is used for heating the gas. The first temperature sensor 102 is disposed at the gas outlet of the gas storage heating device 101, and is used for detecting the temperature of the gas flowing out of the gas storage heating device 101. The second temperature sensor 103 is provided at the first air outlet of the electromagnetic directional valve 4 for detecting the temperature of the gas flowing to the pneumoperitoneum needle 2. The third temperature sensor 104 is disposed at the second air outlet of the electromagnetic directional valve 4, and is configured to detect the temperature of the air flowing to the puncture outfit 3. The fourth temperature sensor 105 is provided at the gas inlet of the gas storage heating device 101 for detecting the temperature of the gas flowing into the gas storage heating device 101.
Further, as shown in fig. 2, the gas storage heating device 101 forms a first gas storage channel 1011 and a second gas storage channel 1012. The air inlet of the first air storage channel 1011 is communicated with the circulating air pump 6, and the air outlet is communicated with the second air outlet of the electromagnetic directional valve 4. The air inlet of the second air storage channel 1012 is communicated with the air source device 1, and the air outlet is communicated with the first air outlet of the electromagnetic directional valve 4. One end of the gas storage heating device 101 forms a plug-in port 1013, the second gas storage channel 1012 forms a mounting channel 1014 communicated with the plug-in port 1013, a heating rod is arranged in the mounting channel 1014, the heating rod comprises a heating part and a mounting part, the heating part is inserted into the mounting channel 1014, and the mounting part is positioned outside the plug-in port 1013. The air inlet and the air outlet of the first air storage channel 1011 and the air inlet and the air outlet of the second air storage channel 1012 are arranged on two opposite sides of the air storage heating device 101. The first and second gas storage channels 1011 and 1012 each include: the first channel part a and the second channel part b which are connected end to end are vertical in the extending direction of the axes of the first channel part a and the second channel part b. The diameter of the first channel portion a between the two second channel portions b is smaller than the diameter of the second channel portion b.
The air paths of the pneumoperitoneum machine are connected through heat preservation pipes with the same mass, pipe thickness and density, so that the heat preservation effect of the pneumoperitoneum machine is ensured.
Temperature control principle of temperature control system of pneumoperitoneum machine:
when the first air outlet of the electromagnetic directional valve 4 is opened and the second air outlet is closed, namely, the pneumoperitoneum machine is in the working mode of the pneumoperitoneum needle 2. The first temperature sensor 102 measures the gas outlet temperature T of the second gas storage channel 1012 of the gas storage heating device 101 1 The second temperature sensor 103 measures the air outlet temperature of the pneumoperitoneum machine as T 2 First temperature transmitterThe distance between the sensor 102 and the second temperature sensor 103 is L 1 The distance between the second temperature sensor 103 and the pneumoperitoneum needle 2 is L 2 。△T 1 ＝T 1 -T 2 Inflow of human body gas temperature T Human body ＝(△T 1 /L 1 )*(L 1 +L 2 ) Wherein L is 1 、L 2 For a fixed value, according to the set T Human body Numerical adjustment DeltaT 1 . If set T Human body The error is + -5 ℃, and the delta T can be obtained by reasoning 1 The error range of (C) is [ (T) Human body -5)/(L 1 +L 2 )]*L 1 ≤△T 1 ≤[(T Human body +5)/(L 1 +L 2 )]*L 1 When detecting T 1 ＜T Human body When the gas storage heating is performed, the heating rod starts to heat; when detecting [ (T) Human body -5)/(L 1 +L 2 )]*L 1 ≤△T 1 ≤[(T Human body +5)/(L 1 +L 2 )]*L 1 And when the heating rod in the gas storage heating process stops heating.
When the second air outlet of the electromagnetic directional valve 4 is opened, the first air outlet is closed, namely, the pneumoperitoneum machine is in the working mode of the puncture outfit 3. The first temperature sensor 102 measures the gas outlet temperature T of the second gas storage channel 1012 of the gas storage heating device 101 1 The third temperature sensor 104 measures the air outlet temperature of the pneumoperitoneum machine as T 3 The distance between the first temperature sensor 102 and the third temperature sensor 104 is L 3 The distance between the second temperature sensor 103 and the puncture outfit 3 is L 4 。△T 2 ＝T 1 -T 3 Inflow of human body gas temperature T Human body ＝(△T 2 /L 1 )*(L 1 +L 3 ) Wherein L is 1 、L 3 For a fixed value, according to the set T Human body Numerical adjustment DeltaT 2 . If set T Human body The error is + -5 ℃, and the delta T can be obtained by reasoning 2 The error range of (C) is [ (T) Human body -5)/(L 1 +L 3 )]*L 1 ≤△T 1 ≤[(T Human body +5)/(L 1 +L 3 )]*L 1 When detecting T 1 ＜T Human body When the heating rod in the gas storage heating starts to heatThe method comprises the steps of carrying out a first treatment on the surface of the When detecting [ (T) Human body -5)/(L 1 +L 3 )]*L 1 ≤△T 1 ≤[(T Human body +5)/(L 1 +L 3 )]*L 1 And when the heating rod in the gas storage heating process stops heating.
The pressure control system comprises a pressure controller and also comprises a pressure control device connected with the pressure controller: the pressure relief device 106, the switch valve 107, the proportional valve 108, the first relief valve 109, the second relief valve 110, the safety valve 111, the check valve 112, and the first pressure sensor 113, the second pressure sensor 114, the third pressure sensor 115, the fourth pressure sensor 116, the fifth pressure sensor 117, and the sixth pressure sensor 118, wherein the proportional valve 108 is connected to the pressure controller through the second auxiliary controller 10. The switch valve 107 is disposed at the gas inlet of the gas storage heating device 101, and is used for adjusting the flow rate of the gas entering the gas storage heating device 101. The proportional valve 108 is disposed at the gas outlet of the gas storage heating device 101, and is used for controlling the gas outflow of the gas storage heating device 101. The pressure reducing device 106 is provided between the filtering device and the switch valve 107 for adjusting the pressure of the gas entering the gas storage heating device 101. The first air release valve 109 is connected with the air storage heating device 101 for releasing air of the air storage heating device 101, and the second air release valve 110 is connected with the proportional valve 108 for releasing air of the proportional valve 108. The safety air valve 111 is communicated with the pressure measuring channel of the puncture outfit 3 and is used for adjusting the pressure of the puncture outfit 3. The check valve 112 is disposed between the second filtering device 8 and the circulating air pump 6, and is used for adjusting the air flow of the circulating air pump 6. The first pressure sensor 113 is disposed at the air outlet of the air storage heating device 101, specifically disposed at the air outlet of the second air storage channel 1012, and is used for detecting the air storage pressure of the second air storage channel 1012. The second pressure sensor 114 is disposed at the first air outlet of the electromagnetic directional valve 4, and is used for detecting the pressure of the air flowing to the pneumoperitoneum needle 2. The third pressure sensor 115 is disposed at the second air outlet of the electromagnetic directional valve 4, and is used for detecting the pressure of the air flowing to the puncture outfit 3. The fourth pressure sensor 116 is disposed at an air inlet of the pneumoperitoneum machine for detecting an intake pressure. The fifth pressure sensor 117 is disposed at the pressure measuring channel of the puncture outfit 3, and is used for detecting the air pressure of the puncture outfit 3. A sixth pressure sensor 118 is provided at the air outlet of the check valve 112 for detecting the pressure of the gas flowing into the circulation pump 6.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:
1. the temperature control system disclosed by the embodiment of the utility model provides a novel gas storage heating device 101, so that the heating efficiency is improved;
2. according to the temperature control system disclosed by the embodiment of the utility model, the temperature sensors are arranged at a plurality of positions of the pneumoperitoneum machine, so that the temperature can be conveniently controlled, and the stability of the gas temperature is maintained;
3. the temperature control system disclosed by the embodiment of the utility model adopts the heating element which is internally arranged in the gas storage heating device 101 to heat the gas, so that the damage to a user can be avoided.
The foregoing has described in detail the technical solutions provided herein, and specific examples have been used herein to illustrate the principles and embodiments of the present application, the above examples being provided only to assist in understanding the methods of the present application and their core ideas; also, as will occur to those of ordinary skill in the art, many modifications are possible in view of the teachings of the present application, both in the detailed description and the scope of its applications. In view of the foregoing, this description should not be construed as limiting the application.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. A temperature control system for a pneumoperitoneum machine, comprising:
the gas storage heating device, gas storage heating device is formed with the gas receiver, be equipped with the heating piece in the gas receiver, gas storage heating device's air inlet and the gas outlet intercommunication of air supply device, gas storage heating device's gas outlet and electromagnetic reversing valve intercommunication, the electromagnetic reversing valve includes: the first air outlet of the electromagnetic reversing valve is communicated with the pneumoperitoneum needle, and the second air outlet of the electromagnetic reversing valve is communicated with the puncture outfit and the circulating air pump;
the first temperature sensor is connected with the air outlet of the air storage heating device;
the second temperature sensor is connected with the first air outlet of the electromagnetic directional valve;
the third temperature sensor is connected with the second air outlet of the electromagnetic directional valve;
the control device is connected with the gas storage heating device, the first temperature sensor, the electromagnetic reversing valve, the second temperature sensor and the third temperature sensor, and is suitable for controlling the heating piece to heat according to temperature sensing signals of the first temperature sensor and the second temperature sensor or controlling the heating piece to heat according to temperature sensing signals of the first temperature sensor and the third temperature sensor.
2. The temperature control system of claim 1, wherein the air reservoir comprises: a first gas storage channel and a second gas storage channel;
the air inlet of the first air storage channel is communicated with the circulating air pump, and the air outlet of the first air storage channel is communicated with the second air outlet of the electromagnetic directional valve;
the air inlet of the second air storage channel is communicated with the air outlet of the air source device, the air outlet of the second air storage channel is communicated with the first air outlet of the electromagnetic directional valve, and the heating part is at least partially arranged in the second air storage channel.
3. The temperature control system according to claim 2, wherein the gas storage heating device is formed with the gas inlet and the gas outlet of the first gas storage passage on one side thereof, and the gas inlet and the gas outlet of the second gas storage passage are provided on the other side opposite to the gas inlet and the gas outlet of the first gas storage passage.
4. The temperature control system as claimed in claim 2, wherein the first and second gas storage passages each include: the gas storage device comprises a plurality of first channel parts and second channel parts which are connected end to end, wherein the extending direction of the axis of the first channel parts is perpendicular to the extending direction of the axis of the second channel parts, and the diameter of the first channel parts of the second gas storage channels is smaller than that of the second channel parts.
5. A temperature control system according to claim 4 wherein said gas storage heating means has a plug port formed at one end thereof, said second gas storage passage forming a mounting passage communicating with said plug port, said heating member being inserted into said mounting passage through said plug port, said mounting passage extending through at least two of said first passage portions.
6. The temperature control system as claimed in claim 1, wherein the air inlet of the air storage heating device is connected to a fourth temperature sensor.
7. The temperature control system as claimed in any one of claims 1 to 6 wherein a first filter means is in communication between the air inlet of the air storage heating means and the air outlet of the air supply means.
8. The temperature control system according to any one of claims 1 to 6, wherein the puncture outfit is formed with an air intake passage, a smoke exhaust passage, a pressure measurement passage, an air inlet of the smoke exhaust passage is communicated with a second air outlet of the electromagnetic directional valve, and an air outlet of the smoke exhaust passage is communicated with the circulating air pump.
9. The temperature control system of claim 8, wherein a second filter device is in communication between the smoke evacuation channel and the circulating air pump.
10. A pneumoperitoneum machine, characterized by comprising the temperature control system for a pneumoperitoneum machine according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221944724.8U CN218923470U (en) | 2022-07-26 | 2022-07-26 | Temperature control system for pneumoperitoneum machine and pneumoperitoneum machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221944724.8U CN218923470U (en) | 2022-07-26 | 2022-07-26 | Temperature control system for pneumoperitoneum machine and pneumoperitoneum machine |
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| Publication Number | Publication Date |
|---|---|
| CN218923470U true CN218923470U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221944724.8U Active CN218923470U (en) | 2022-07-26 | 2022-07-26 | Temperature control system for pneumoperitoneum machine and pneumoperitoneum machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218923470U (en) |
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2022
- 2022-07-26 CN CN202221944724.8U patent/CN218923470U/en active Active
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