Heating device for pneumoperitoneum machine and pneumoperitoneum machine

By sealing the bracket and the cover plate in the pneumatic belly machine heating device, a closed chamber is formed, which solves the problem of heating heat loss, realizes effective heat utilization and temperature control, and extends the service life of the pneumatic belly machine.

CN223041945UActive Publication Date: 2025-07-01EAST CHINA DIGITAL MEDICAL ENG RES INST
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Patent Information

Application Number
CN202421704760.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-07-01
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

The existing pneumatic abdominal machine heating devices have poor sealing properties, which leads to heat exchange mainly through the outer surface, which cannot effectively prevent the internal temperature of the pneumatic abdominal machine from rising too quickly, increasing the risk of electronic components burning out.

Method used

By sealing the bracket with the front end cover and the rear end cover, a closed chamber is formed to prevent the heat emitted by the heating fin from being discharged directly into the pneumatic abdominal machine, and the intake assembly and the air outlet assembly are connected through the pipeline to achieve effective heat utilization.

Benefits of technology

Effectively prevent the internal temperature of the pneumatic abdominal machine from rising too quickly, ensure the normal operation of the control system, extend the service life of the pneumatic abdominal machine, and solve the assembly error problem caused by mechanical processing accuracy through bonding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a heating device for a pneumoperitoneum machine and the pneumoperitoneum machine, and the heating device comprises a support which is internally provided with a cavity; the front end cover is hermetically connected with one end of the bracket; the rear end cover is hermetically connected with one end, away from the front end cover, of the bracket; the heating sheet is mounted in the cavity, and two ends of the heating sheet are respectively connected with the front end cover and the rear end cover; the gas inlet assembly is mounted at one end, far away from the heating sheet, of the rear end cover and is used for being externally connected with a CO2 gas source; the air outlet assembly is installed at the end, away from the heating piece, of the front end cover, and the air inlet assembly and the air outlet assembly communicate with each other through a pipeline which is arranged in the cavity. According to the utility model, the heat dissipated by the heating sheet in the cavity can be prevented from being directly discharged into the pneumoperitoneum machine, the temperature in the pneumoperitoneum machine is prevented from rising quickly, the normal operation of a control system in the pneumoperitoneum machine is ensured, and the service life of the pneumoperitoneum machine is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a heating device for a pneumoperitoneum machine and the pneumoperitoneum machine. Background Art

[0002] The pneumoperitoneum machine is a special device for establishing and maintaining pneumoperitoneum in laparoscopic surgery. It inflates the patient's abdomen by mechanical pressurized inflation, separates the abdominal wall from the viscera, provides sufficient operating space for the surgery, and can avoid damaging the viscera when the puncture trocar is inserted into the abdominal cavity.

[0003] Currently, during laparoscopic surgery, doctors need to pre-inject CO2 gas into the human abdominal cavity to form a pneumoperitoneum for easy observation and operation during the surgery. However, since the CO2 gas source of the pneumoperitoneum machine is in a liquid state in the steel cylinder, a large amount of heat is absorbed during the conversion of CO2 gas from liquid to gas during output, resulting in a relatively low temperature of the CO2 gas entering the human abdominal cavity, which causes the temperature in the human abdominal cavity to also decrease, thus easily causing discomfort to the patient during the surgery, and even serious complications in severe cases. Therefore, in the prior art, a heating device is provided inside the pneumoperitoneum machine to heat the CO2 gas entering the human abdominal cavity until the temperature of the CO2 gas entering the human abdominal cavity is consistent with the temperature in the human abdominal cavity.

[0004] However, due to problems with mechanical processing and assembly methods, the current heating device has poor sealing performance, causing the heat dissipated inside the cavity of the heating device to be directly discharged into the main body of the pneumoperitoneum machine, while very little heat is exchanged through the outer surface of the heating device, resulting in the temperature inside the main body of the pneumoperitoneum machine rising rapidly, thus affecting the normal operation of the internal control system of the pneumoperitoneum machine main body and increasing the risk of other electronic components such as the main board being easily burned out. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The utility model provides a heating device for a pneumoperitoneum machine and the pneumoperitoneum machine. By hermetically connecting the bracket with the front end cover and the rear end cover, it can prevent the heat dissipated by the heating element in the chamber from being directly discharged into the pneumoperitoneum machine, prevent the temperature inside the pneumoperitoneum machine from rising rapidly, ensure the normal operation of the internal control system of the pneumoperitoneum machine, and extend the service life of the pneumoperitoneum machine.

[0007] (2) Technical Solutions

[0008] In a first aspect, an embodiment of the present utility model provides a heating device for a pneumoperitoneum machine, including a bracket with a chamber inside; a front end cover sealingly connected to one end of the bracket; a rear end cover sealingly connected to the end of the bracket away from the front end cover; a heating sheet installed in the chamber and having both ends respectively connected to the front end cover and the rear end cover; an air inlet assembly installed at one end of the rear end cover away from the heating sheet for externally connecting a CO2 gas source; an air outlet assembly installed at one end of the front end cover away from the heating sheet; the air inlet assembly and the air outlet assembly are interconnected through a pipeline and the pipeline is arranged in the chamber.

[0009] Further, first guiding edges and second guiding edges are respectively provided at both ends of the bracket, a first guiding groove sealingly connected to the first guiding edge is provided on the front end cover, and a second guiding groove sealingly connected to the second guiding edge is provided on the rear end cover.

[0010] Further, the air inlet assembly includes a first pipe joint fixedly installed at one end of the rear end cover away from the heating sheet and an inlet pipe joint connected to and communicating with the first pipe joint, and the inlet pipe joint is used for externally connecting the CO2 gas source.

[0011] Further, the air inlet assembly further includes an exhaust pipe joint connected to the first pipe joint.

[0012] Further, the air outlet assembly includes an elbow joint fixedly installed at one end of the front end cover away from the heating sheet, the elbow joint is communicated with the first pipe joint through the pipeline, and a flare fitting at one end of the elbow joint away from the front end cover.

[0013] Further, a thermistor fixedly arranged on the rear end cover is further included for detecting the temperature of the chamber.

[0014] Further, a fixing plate fixedly arranged on the pneumoperitoneum machine is further included, and a plurality of supporting feet fixedly installed with the fixing plate are provided on the bracket.

[0015] Further, the heating sheet includes a heating sheet main body and a first tongue and a second tongue installed at both ends of the heating sheet main body, a first locking groove connected to the first tongue is provided on the front end cover, and a second locking groove connected to the second tongue is provided on the rear end cover.

[0016] Further, a first through hole connected to the pipeline and the elbow joint is further provided on the front end cover, and a second through hole connected to the pipeline and the first pipe joint is further provided on the rear end cover.

[0017] In the second aspect, an embodiment of the utility model proposes an insufflator, comprising a base and an upper cover assembled and connected, the base is provided with a heating device as described in the first aspect and an air inlet valve and an air outlet valve, the air outlet valve is connected to the air outlet component, and the air inlet valve is connected to the air inlet component.

[0018] (3) Beneficial effects

[0019] In summary, by sealingly connecting the bracket with the front cover and the rear cover, the heat emitted by the heating plate in the chamber can be prevented from being directly discharged into the insufflator, thereby preventing the temperature inside the insufflator from rising rapidly, ensuring the normal operation of the internal control system of the insufflator, and extending the service life of the insufflator.

[0020] The utility model seals the bracket, the front cover and the rear cover by bonding, and can also solve the problem of poor air tightness caused by assembly errors caused by mechanical processing precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the heating device of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the front end cover of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the rear end cover of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the utility model pneumoperitoneum machine.

[0026] In the figure:

[0027] 1-front end cover; 10-elbow joint; 11-first guide groove; 12-first locking groove; 13-first through hole;

[0028] 2-heating plate; 20-pagoda connector; 21-heating plate body; 22-first plug tongue; 23-second plug tongue;

[0029] 3-bracket; 30-chamber; 31-first guide edge; 32-second guide edge; 33-support foot;

[0030] 4 - Rear end cover; 41 - Second guiding groove; 42 - Second locking groove; 43 - Second through hole; 44 - Resistance mounting seat;

[0031] 5 - Thermistor;

[0032] 6 - Fixed plate;

[0033] 7 - First pipe joint;

[0034] 8 - Inlet pipe joint;

[0035] 9 - Exhaust pipe joint;

[0036] 100 - Base; 200 - Upper cover; 300 - Intake valve; 400 - Exhaust valve. Detailed implementation manners

[0037] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following detailed description of the embodiments and the drawings are used to exemplarily illustrate the principle of the present utility model, but cannot be used to limit the scope of the present utility model, that is, the present utility model is not limited to the described embodiments, and covers any modifications, substitutions and improvements of parts, components and connection manners without departing from the spirit of the present utility model.

[0038] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present application in detail with reference to the drawings and embodiments.

[0039] In a first aspect, as Figure 1 shown, the present utility model relates to a heating device for a pneumoperitoneum machine, including a bracket 3, a chamber 30 is provided inside the bracket 3; a front end cover 1, which is hermetically connected to one end of the bracket 3; a rear end cover 4, which is hermetically connected to the end of the bracket 3 away from the front end cover 1; a heating sheet 2, which is installed in the chamber 30 and both ends are respectively connected to the front end cover 1 and the rear end cover 4; an intake assembly, which is installed at one end of the rear end cover 4 away from the heating sheet 2 for externally connecting a CO2 gas source, and an exhaust assembly, which is installed at one end of the front end cover 1 away from the heating sheet 2, and the intake assembly and the exhaust assembly are interconnected through a pipeline (not shown in the figure) and the pipeline is arranged in the chamber 30.

[0040] By hermetically connecting the bracket with the front end cover and the rear end cover, the present utility model can avoid the heat dissipated by the heating sheet in the chamber from being directly discharged into the pneumoperitoneum machine, prevent the temperature inside the pneumoperitoneum machine from rising rapidly, ensure the normal operation of the internal control system of the pneumoperitoneum machine main unit, and extend the service life of the pneumoperitoneum machine main unit.

[0041] As a preferred implementation manner, as Figure 1 and Figure 3As shown, both ends of the bracket 3 are respectively provided with a first guiding edge 31 and a second guiding edge 32. The front end cover 1 is provided with a first guiding groove 11 that is hermetically connected to the first guiding edge 31, and the rear end cover 4 is provided with a second guiding groove 41 that is hermetically connected to the second guiding edge 32. Specifically, the first guiding edge 31 is inserted into the first guiding groove 11 and sealed with glue, and the second guiding edge 32 is inserted into the second guiding groove 41 and sealed with glue, thereby ensuring the sealing performance between the bracket 3, the front end cover 1, and the rear end cover 4. By sealing the bracket with the front end cover and the rear end cover in an adhesive bonding manner, it is also possible to solve the problem of poor airtightness caused by assembly errors resulting from machining accuracy.

[0042] As another preferred embodiment, as Figure 1 shown, the air intake assembly includes a first pipe joint 7 fixedly installed at one end of the rear end cover 4 away from the heating sheet 2, and an intake pipe joint 8 connected to and communicating with the first pipe joint 7. The intake pipe joint 8 is used to connect to an external CO2 gas source. Specifically, the CO2 gas source is set as a steel cylinder storing liquid CO2. The air intake assembly further includes an exhaust pipe joint 9 connected to the first pipe joint 7. The first pipe joint 7 is a three-way pipe joint, which is respectively used to connect the intake pipe joint 8 and the exhaust pipe joint 9. The exhaust pipe joint 9 is used to discharge the excess gas entering the first pipe joint 7. Mainly, a pressure sensor (not shown in the figure) is provided between the intake pipe joint 8 and the first pipe joint 7. By monitoring the gas pressure output from the intake pipe joint 8 to the first pipe joint 7 in real time, it is determined whether pressure relief is required, and thus the excess gas is discharged to prevent excessive intake pressure from causing excessive pneumoperitoneum pressure for the patient and bringing surgical risks.

[0043] As other alternative embodiments.

[0044] Preferably, as Figure 1 shown, the air outlet assembly includes an elbow joint 10 fixedly installed at one end of the front end cover 1 away from the heating sheet 2. The elbow joint 10 is communicated with the first pipe joint 7 through the pipeline (not shown in the figure), and a flare fitting 20 at one end of the elbow joint 10 away from the front end cover 1.

[0045] Preferably, as Figure 1 shown, the heating device further includes a thermistor 5 fixedly arranged on the rear end cover 4, which is used to detect the temperature of the chamber 30. By monitoring the temperature of the chamber 30 in real time through the thermistor 5, it is possible to avoid the internal temperature of the chamber 30 being too high and affecting the sealing performance between the bracket 3, the front end cover 1, and the rear end cover 4. It is also possible to judge whether the heating sheet 2 is working properly according to the internal temperature of the chamber 30, that is, if it is in a low temperature state for a long time, it can be judged that the heating sheet is damaged.

[0046] Preferably, as Figure 1As shown, the heating device further comprises a fixing plate 6 fixedly arranged on the insufflator, and the bracket 3 is provided with a plurality of supporting feet 33 fixedly mounted on the fixing plate 6 .

[0047] Preferably, if Figures 1 to 3 As shown, the heating plate 2 includes a heating plate body 21 and a first plug tongue 22 and a second plug tongue 23 installed at both ends of the heating plate body 21, the front end cover 1 is provided with a first locking groove 12 connected to the first plug tongue 22, the rear end cover 4 is provided with a second locking groove 42 connected to the second plug tongue 23, the front end cover 1 is also provided with a first through hole 13 connected to the pipeline (not shown) and the elbow joint 10, the rear end cover 4 is also provided with a second through hole 43 connected to the pipeline and the first pipe joint 7, and the rear end cover 4 is also provided with a resistor mounting seat 44 for mounting the thermistor 5. In order to ensure the overall sealing effect of the heating device, the elbow joint 10, the pipeline and the first through hole 13 can be sealed, and the first pipe joint 7, the pipeline and the second through hole 43 can be sealed.

[0048] Second, as Figure 4 As shown, the utility model also provides an insufflator, including a base 100 and an upper cover 200 which are assembled and connected, the base 100 is provided with a heating device as described in the first aspect, as well as an air inlet valve 300 and an air outlet valve 400, the air outlet valve 400 is connected to the air outlet assembly, the air inlet valve 300 is connected to the air inlet assembly, specifically, the heating device of the first aspect is mounted on the base 100 via a fixing plate 6, the air outlet valve 400 is connected to a pagoda connector 20 via a hose (not shown in the figure), the end of the air outlet valve 400 away from the pagoda connector 20 is used for external connection with an insufflator tube, so as to facilitate the transmission of the CO2 gas into the insufflator tube, the air inlet valve 300 is connected to the air inlet pipe connector 8 via a pipeline.

[0049] It should be clear that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The utility model is not limited to the specific steps and structures described above and shown in the figures. In addition, for the sake of simplicity, detailed descriptions of known methods and technologies are omitted here.

[0050] The above description is only an embodiment of the present application and is not limited to the present application. For those skilled in the art, the present application may have various changes and variations without departing from the scope of the present utility model. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A heating device for an insufflator, characterized in that: include A support (3) having a chamber (30) therein; A front end cover (1) is sealingly connected to one end of the bracket (3); A rear end cover (4) is sealingly connected to an end of the bracket (3) away from the front end cover (1); A heating plate (2) is installed in the chamber (30), and two ends thereof are respectively connected to the front cover (1) and the rear cover (4); An air intake assembly is mounted on the end of the rear end cover (4) away from the heating plate (2) and is used for connecting to an external CO2 gas source; An air outlet assembly is mounted on an end of the front end cover (1) away from the heating plate (2); The air inlet assembly and the air outlet assembly are connected to each other via a pipeline, and the pipeline is arranged in the chamber (30).

2. The heating device for an insufflator according to claim 1, characterized in that: The bracket (3) is provided with a first guide edge (31) and a second guide edge (32) at both ends, the front end cover (1) is provided with a first guide groove (11) sealedly connected to the first guide edge (31), and the rear end cover (4) is provided with a second guide groove (41) sealedly connected to the second guide edge (32).

3. The heating device for an insufflator according to claim 1, characterized in that: The air intake assembly comprises a first pipe joint (7) fixedly mounted on the end of the rear end cover (4) away from the heating plate (2), and an air intake pipe joint (8) connected to the first pipe joint (7) and interconnected, wherein the air intake pipe joint (8) is used to connect to the CO2 gas source externally.

4. The heating device for an insufflator according to claim 3, characterized in that: The air intake assembly further comprises an exhaust pipe joint (9) connected to the first pipe joint (7).

5. The heating device for an insufflator according to claim 3, characterized in that: The air outlet assembly comprises an elbow joint (10) fixedly mounted on the end of the front end cover (1) away from the heating plate (2), and a pagoda joint (20) connected to the end of the elbow joint (10) away from the front end cover (1), and the elbow joint (10) is connected to the first pipe joint (7) through the pipeline.

6. The heating device for an insufflator according to claim 1, characterized in that: It also includes a thermistor (5) fixedly arranged on the rear end cover (4) and used for detecting the temperature of the chamber (30).

7. The heating device for an insufflator according to claim 1, characterized in that: It also includes a fixing plate (6) fixedly mounted on the pneumoperitoneum machine, and the bracket (3) is provided with a plurality of supporting feet (33) fixedly mounted on the fixing plate (6).

8. The heating device for an insufflator according to claim 1, characterized in that: The heating plate (2) comprises a heating plate body (21) and a first plug tongue (22) and a second plug tongue (23) mounted at two ends of the heating plate body (21); the front end cover (1) is provided with a first locking groove (12) connected to the first plug tongue (22); and the rear end cover (4) is provided with a second locking groove (42) connected to the second plug tongue (23).

9. The heating device for an insufflator according to claim 5, characterized in that: The front end cover (1) is also provided with a first through hole (13) connected to the pipeline and the elbow joint (10), and the rear end cover (4) is also provided with a second through hole (43) connected to the pipeline and the first pipe joint (7).

10. A pneumoperitoneum machine, characterized in that: It comprises a base (100) and an upper cover (200) which are assembled and connected, wherein the base (100) is provided with a heating device as described in any one of claims 1 to 9, and an air inlet valve (300) and an air outlet valve (400), wherein the air outlet valve (400) is connected to the air outlet component, and the air inlet valve (300) is connected to the air inlet component.