Heating device of pneumoperitoneum machine

Abstract

The utility model relates to a pneumoperitoneum machine heating device, which belongs to the technical field of medical instruments and comprises a box body, a PTC (Positive Temperature Coefficient) heating block, a plurality of upper partition plates and a plurality of lower partition plates, the PTC heating block, the plurality of upper partition plates and the plurality of lower partition plates are fixed in the box body, and a plurality of vent holes in the PTC heating block and heating holes which are formed in the plurality of upper partition plates and the plurality of lower partition plates in a staggered manner can form square-wave-shaped heating through holes in the box body, so that the length of a path of abdominal cavity inflation gas flowing through the interior of the box body is increased; the standing time of the inflation gas in the box body is prolonged, the contact area of the inflation gas and a heat source is enlarged, and therefore under the same heating power, the heating temperature of the inflation gas is increased, the temperature rising requirement of high-flow inflation lifting is met, the temperature floating range is narrowed, and the power requirement of a power source is lowered.

Description

Technical Field

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

[0002] A pneumoperitoneum machine is a special device for establishing and maintaining pneumoperitoneum in endoscopic surgery. It mainly inflates the patient's abdominal cavity by outputting carbon dioxide gas, forming a cavity in the abdomen, and heating the carbon dioxide during the inflation process to obtain a good surgical field of view and operating space, facilitating doctors to perform endoscopic surgery.

[0003] Currently, a heating device for a pneumoperitoneum machine is mainly used to heat the inflated gas. It mainly consists of a housing, an air inlet joint, an air outlet joint, a first heating device, a second heating device, and a temperature sensor. For example, in the utility model patent with the patent number CN208985020U and the name of a temperature control system, an air inlet joint communicating with the inside of the housing is provided at the lower part of the housing, an air outlet joint communicating with the inside of the housing is provided at the upper part, a first heating device and a second heating device located above the first heating device are provided inside the housing. Both the first heating device and the second heating device are laid flat across the cross-section of the housing, and a temperature sensor is provided on the air outlet joint to measure the outlet air temperature. In practical applications, the temperature control system first controls the air flow direction through two PTC heating devices to ensure that the gas is heated evenly and sufficiently; then, it controls and adjusts the required temperature through the temperature sensor and the two PTC heating devices to keep the gas at a constant temperature.

[0004] However, the flow rate of the above-mentioned inflated gas is too fast, and the residence time in the heating device of the pneumoperitoneum machine is too short. If a relatively high temperature of the inflated gas is to be maintained, the heating device of the pneumoperitoneum machine needs to always maintain a high heat output, resulting in too high energy consumption and too low heating efficiency of the heating device of the pneumoperitoneum machine.

[0005] Therefore, how to design a heating device for a pneumoperitoneum machine with a simple structure, low cost, high heating efficiency, and low energy consumption is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0006] The utility model provides a heating device for a pneumoperitoneum machine, which solves the technical problems of too high energy consumption and too low heating efficiency of the existing heating device for a pneumoperitoneum machine.

[0007] The technical solution for the utility model to solve the above technical problems is as follows. A heating device for a pneumoperitoneum machine includes: a box body, PTC heating blocks, a plurality of upper partition plates, and a plurality of lower partition plates.

[0008] The PTC heating block is fixed in the box along the height direction perpendicular to the box body and divides the interior of the box body into an upper heating area and a lower heating area. A plurality of evenly distributed heating holes are provided on the PTC heating block; an air inlet hole is provided on the side surface of the box body corresponding to the upper heating area, and an air outlet hole is provided on the side surface corresponding to the lower heating area; a plurality of the upper partition plates and a plurality of the upper partition plates are all arranged along the height direction of the box body. A plurality of the upper partition plates are sequentially spaced in the upper heating area from the air inlet hole to the air outlet hole direction, and their tops are all fixed on the inner top surface of the box body, and their bottoms are all fixed on the PTC heating block. A plurality of the lower partition plates are sequentially spaced in the lower heating area from the air inlet hole to the air outlet hole direction, and their tops are all fixed on the PTC heating block, and their bottoms are all fixed on the inner bottom surface of the box body. A plurality of ventilation holes are staggeredly arranged on the spaced upper partition plates and a plurality of the lower partition plates to form a square-wave heating channel in the box body in combination with the plurality of heating holes.

[0009] The beneficial effects of the present utility model are as follows: First, a PTC heating block with heating holes is fixed in the box along the height direction perpendicular to the box body, and then a plurality of upper partition plates and a plurality of lower partition plates are respectively and spacedly fixed in the upper heating area and the lower heating area. Since a plurality of ventilation holes are staggeredly arranged on the spaced upper partition plates and a plurality of the lower partition plates, a plurality of ventilation holes and a plurality of heating holes can be used to form a square-wave heating through hole in the box body, so as to increase the path length of the abdominal inflation gas flowing through the interior of the box body, extend its residence time in the box body, and expand the contact area between the inflation gas and the heat source. Therefore, under the same heating power, the heating temperature of the inflation gas can be increased, the heating requirements for high-flow inflation can be met, the temperature fluctuation range can be reduced, and the power supply power requirement can be lowered.

[0010] On the basis of the above technical solution, the present utility model can be further improved as follows.

[0011] Further, an air inlet pipe is further included, and one end of the air inlet pipe is detachably connected in the air inlet hole.

[0012] Further, an air outlet pipe is further included, and one end of the air outlet pipe is detachably connected in the air outlet hole.

[0013] Further, a temperature sensor is further included. A temperature sensing hole is provided on the bottom surface of the box body; the temperature sensor is inserted and fixed in the temperature sensing hole, and its sensing probe extends into the box body.

[0014] The beneficial effect of adopting the above is that the temperature of the inflation gas inside the box body can be monitored at all times by using the temperature sensor, so that the temperature of the inflation gas can be kept constant, and the intraoperative feeling of the patient can be improved.

[0015] Further, both the top surface and the bottom surface of the box body are made of aluminum alloy materials.

[0016] Further, the sides of the box body corresponding to the air inlet holes and the sides corresponding to the air outlet holes are both made of insulating materials. Description of the Drawings

[0017] Figure 1 FIG. 1 is a front view structural schematic diagram of a heating device for a pneumoperitoneum machine according to the present invention;

[0018] Figure 2 FIG. 2 is a front view structural schematic diagram of the interior of a heating device for a pneumoperitoneum machine according to the present invention;

[0019] Figure 3 FIG. 3 is a three-dimensional structural schematic diagram of the interior of a heating device for a pneumoperitoneum machine according to the present invention;

[0020] Figure 4 FIG. 4 is an exploded structural schematic diagram of a heating device for a pneumoperitoneum machine according to the present invention.

[0021] In the drawings, the list of components represented by each reference numeral is as follows:

[0022] 1. Box body, 11. Air inlet hole, 12. Air outlet hole, 2. PTC heating block, 21. Heating hole, 3. Upper partition board, 4. Lower partition board, 5. Air inlet pipe, 6. Air outlet pipe, 7. Temperature sensor. Detailed Embodiment

[0023] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0024] As Figures 1 - 4 shown, a heating device for a pneumoperitoneum machine includes: a box body 1, a PTC heating block 2, a plurality of upper partition boards 3 and a plurality of lower partition boards 4.

[0025] The PTC heating block 2 is fixed in the box body 1 along the height direction perpendicular to the box body 1 and divides the interior of the box body 1 into an upper heating area and a lower heating area. A plurality of uniformly distributed heating holes 21 are provided on the PTC heating block 2. The side of the box body 1 corresponding to the upper heating area is provided with an air inlet hole 11, and the side corresponding to the lower heating area is provided with an air outlet hole 12. A plurality of upper partition boards 3 and a plurality of upper partition boards 3 are both arranged along the height direction of the box body 1. The plurality of upper partition boards 3 are sequentially spaced from the air inlet hole 11 to the air outlet hole 12 in the upper heating area, and their tops are all fixed to the inner top surface of the box body 1, and their bottoms are all fixed to the PTC heating block 2. The plurality of lower partition boards 4 are sequentially spaced from the air inlet hole 11 to the air outlet hole 12 in the lower heating area, and their tops are all fixed to the PTC heating block 2, and their bottoms are all fixed to the inner bottom surface of the box body 1. A plurality of ventilation holes are provided in a staggered manner on the spaced plurality of upper partition boards 3 and a plurality of lower partition boards 4 to form a square-wave heating channel in the box body 1 in combination with the plurality of heating holes 21.

[0026] In some specific embodiments, an air inlet pipe 5 may further be included, and one end of the air inlet pipe 5 is detachably connected to the air inlet hole 11.

[0027] In some specific embodiments, an air outlet pipe 6 may further be included, and one end of the air outlet pipe 6 is detachably connected to the air outlet hole 12.

[0028] In some specific embodiments, a temperature sensor 7 may further be included. A temperature sensing hole is provided on the bottom surface of the box body 1; the temperature sensor 7 is inserted and fixed in the temperature sensing hole and its sensing probe extends into the box body 1.

[0029] Specifically, both the top surface and the bottom surface of the box body 1 may be made of aluminum alloy material.

[0030] Specifically, the side surface of the box body 1 corresponding to the air inlet hole 11 and the side surface corresponding to the air outlet hole 12 may both be made of insulating material.

[0031] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heating device for an insufflator, characterized in that: include: Box (1), A PTC heating block (2), the PTC heating block (2) being fixed in the box body (1) along a height direction perpendicular to the box body (1) and dividing the interior of the box body (1) into an upper heating zone and a lower heating zone, the PTC heating block (2) being provided with a plurality of evenly distributed heating holes (21); an air inlet hole (11) is provided on a side of the box body (1) corresponding to the upper heating zone, and an air outlet hole (12) is provided on a side of the box body (1) corresponding to the lower heating zone; A plurality of upper partitions (3) and a plurality of lower partitions (4), wherein the plurality of upper partitions (3) and the plurality of upper partitions (3) are arranged along the height direction of the box body (1); the plurality of upper partitions (3) are sequentially spaced in the upper heating zone from the air inlet (11) to the air outlet (12), and the top ends thereof are fixed to the inner top surface of the box body (1), and the bottom ends thereof are fixed to the PTC heating block (2); the plurality of lower partitions (4) are sequentially spaced in the lower heating zone from the air inlet (11) to the air outlet (12), and the top ends thereof are fixed to the PTC heating block (2), and the bottom ends thereof are fixed to the inner bottom surface of the box body (1); a plurality of ventilation holes are staggeredly arranged on the spaced-apart plurality of upper partitions (3) and the plurality of lower partitions (4) to form a square-wave-shaped heating channel in the box body (1) in combination with the plurality of heating holes (21).

2. The insufflator heating device according to claim 1, characterized in that: It also comprises an air intake pipe (5), one end of which is detachably connected to the air intake hole (11).

3. The insufflator heating device according to claim 1, characterized in that: It also comprises an air outlet pipe (6), one end of which is detachably connected to the air outlet hole (12).

4. The insufflator heating device according to claim 1, characterized in that: It also comprises a temperature sensor (7); the bottom surface of the box body (1) is provided with a temperature sensing hole; the temperature sensor (7) is inserted into the temperature sensing hole and its sensing probe extends into the box body (1).

5. The insufflator heating device according to claim 1, characterized in that: The top surface and the bottom surface of the box body (1) are both made of aluminum alloy material.

6. The insufflator heating device according to claim 1, characterized in that: The side surface of the box body (1) corresponding to the air inlet (11) and the side surface corresponding to the air outlet (12) are both made of insulating material.

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