Gas buffer mechanism of pneumoperitoneum machine

Abstract

The utility model discloses a pneumoperitoneum machine gas buffer mechanism, its characterized in that including buffer casing, the buffer cavity of setting in buffer casing and the buffer pass of intercommunication adjacent buffer cavity, form buffer gas path through buffer cavity and buffer pass, still including the import chamber and export chamber of setting on buffer casing at buffer gas path both ends. The utility model discloses through the setting of buffer mechanism, the input gas with greater concussion and impact is reduced pressure, deceleration, buffering effect, make gas can even stable continuous output after buffering through buffer mechanism, be favorable to pneumoperitoneum machine stable accurate control gas input human abdominal cavity.

Description

Technical Field

[0001] This utility model relates to an insufflator, specifically a gas buffer mechanism for an insufflator. Background Technology

[0002] In existing pneumoperitoneum machines, the required air source is typically supplied by a gas supply device. However, existing gas supply devices usually provide gas in a pulsed manner, resulting in unstable gas supply and difficulty in continuously and stably outputting gas with uniform pressure and flow rate. This leads to significant oscillations and impacts in the output gas during actual operation, low control precision, and gas control lag throughout the gas supply process, while also hindering the detection of actual pressure. Therefore, a gas buffer mechanism for pneumoperitoneum machines is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a gas buffer mechanism for an insufflator to solve the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas buffer mechanism for an insufflator, characterized by including a buffer housing, several buffer cavities disposed within the buffer housing, and several buffer channels connecting adjacent buffer cavities, forming a buffer air path through the several buffer cavities and buffer channels, and further including an inlet and an outlet mouth disposed on the buffer housing at both ends of the buffer air path.

[0005] Further preferably, it also includes a gas inlet disposed on the inlet mouth and a gas outlet disposed on the outlet mouth.

[0006] More preferably, the diameter of the buffer channel is smaller than the diameter of the buffer cavity.

[0007] A further preferred embodiment includes a connector installed on the buffer housing and communicating with the buffer cavity, with pipes connecting the connectors to communicate with the buffer cavity.

[0008] More preferably, the buffer housing includes a bottom shell and a cover plate mounted on the bottom shell.

[0009] The beneficial effects of this utility model are as follows: by setting up a buffer mechanism, it can reduce pressure, slow down and buffer the input gas with large vibration and impact, so that the gas can be output evenly, stably and continuously after being buffered by the buffer mechanism. This is conducive to the stable and accurate control of the gas input into the human abdominal cavity by the pneumoperitoneum machine, and can accurately detect the abdominal cavity pressure during use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention.

[0011] Legend: 1. Buffer shell; 11. Bottom shell; 12. Cover plate; 2. Buffer cavity; 3. Buffer channel; 4. Inlet cavity; 41. Gas inlet; 5. Outlet cavity; 51. Gas outlet; 6. Connector. Detailed Implementation

[0012] The following description, in conjunction with the accompanying drawings, further illustrates the gas buffer mechanism of the pneumoperitoneum machine according to this utility model.

[0013] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0014] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] See Figures 1-2 As shown, a gas buffering mechanism for an insufflator is characterized by including a buffer housing 1, a plurality of buffer chambers 2 disposed within the buffer housing 1, and a plurality of buffer channels 3 connecting adjacent buffer chambers 2, forming a buffer air path through the plurality of buffer chambers 2 and buffer channels 3, and further including an inlet chamber 4 and an outlet chamber 5 disposed on the buffer housing 1 at both ends of the buffer air path; the inlet chamber 4 and the outlet chamber 5 are both connected to the buffer chambers 2 through the buffer channels 3. By setting up a buffer mechanism, the input gas with large vibration and impact is depressurized, slowed down and buffered, so that the gas can be output evenly, stably and continuously after being buffered by the buffer mechanism. This is conducive to the stable and accurate control of gas input into the human abdominal cavity by the pneumoperitoneum machine, and the abdominal pressure can be accurately detected during use. A buffered air path is formed by several buffer chambers 2 and buffer channels 3, so that the gas entering through the inlet chamber 4 is buffered in multiple stages before being output through the outlet chamber 5, so that the gas can be output stably and continuously.

[0016] In one embodiment, it further includes a gas inlet 41 disposed on the inlet chamber 4 and a gas outlet 51 disposed on the outlet chamber 5; The gas inlet 41 is connected to the gas supply equipment via a pipeline, while the gas outlet 51 is connected to the control equipment that controls the gas flow and gas pressure via a pipeline.

[0017] In one embodiment, the diameter of the buffer channel 3 is smaller than the diameter of the buffer cavity 2. By setting the diameter of the buffer channel 3 to be smaller than the diameter of the buffer cavity 2, and by setting several buffer cavities 2 and buffer channels 3, the gas can flow alternately through the small-channel buffer channel 3 and the large-cavity buffer cavity 2 in multiple stages, thereby realizing multi-stage pressure reduction and speed reduction of the gas, so that the gas can be output stably and continuously when it is output through the gas outlet 51.

[0018] In one embodiment, the system further includes a connector 6 installed on the buffer housing 1 and communicating with the buffer cavity 2, with a pipeline connecting the connectors 6 to communicate with the buffer cavity 2; the buffer cavities 2 can also be connected to each other through the connectors 6 and the pipeline.

[0019] In one embodiment, the buffer housing 1 includes a bottom shell 11 and a cover plate 12 mounted on the bottom shell 11, and the buffer cavity 2 and the buffer channel 3 are both disposed on the bottom shell 11.

[0020] In use, the present invention is as follows: gas is introduced into the intake chamber through the gas supply device via the pipeline and gas inlet 41. The gas entering the intake chamber flows alternately through several buffer channels 3 and buffer chambers 2, and undergoes multi-stage pressure reduction, speed reduction and buffering before flowing to the outlet chamber. The stable gas in the outlet chamber is discharged through the gas outlet 51 into the pipeline connected to the gas outlet 51, and then supplied to the human abdominal cavity after being controlled by the control device that controls the gas flow and pressure.

[0021] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.

Claims

1. A gas buffer mechanism for an insufflator, characterized in that: It includes a buffer housing (1), several buffer cavities (2) disposed in the buffer housing (1) and several buffer channels (3) connecting adjacent buffer cavities (2), forming a buffer air path through the several buffer cavities (2) and buffer channels (3), and also includes an inlet cavity (4) and an outlet cavity (5) disposed on the buffer housing (1) at both ends of the buffer air path.

2. The gas buffer mechanism for an insufflator according to claim 1, characterized in that: It also includes a gas inlet (41) provided on the inlet cavity (4) and a gas outlet (51) provided on the outlet cavity (5).

3. The gas buffer mechanism for an insufflator according to claim 1, characterized in that: The diameter of the buffer channel (3) is smaller than the diameter of the buffer cavity (2).

4. The gas buffer mechanism for an insufflator according to claim 1, characterized in that: It also includes a connector (6) installed on the buffer housing (1) and communicating with the buffer cavity (2), and there is a pipeline connecting the connectors (6) to communicate with the buffer cavity (2).

5. The gas buffer mechanism for an insufflator according to claim 1, characterized in that: The buffer housing (1) includes a bottom shell (11) and a cover plate (12) mounted on the bottom shell (11).

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