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Constant-pressure pneumoperitoneum device

A constant pressure, pneumoperitoneum technology, applied in the field of medical devices, can solve the problems of extraction space, inability to keep up with gas volume, unstable pressure, etc.

Active Publication Date: 2021-05-07
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the interval of inflation, the amount of gas may not be able to keep up, and especially when the aspirator is sucking, it is easy to draw out a large amount of gas and collapse the space, resulting in unstable intra-abdominal pressure.

Method used

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  • Constant-pressure pneumoperitoneum device
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  • Constant-pressure pneumoperitoneum device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 As shown, a constant pressure insufflation device is provided in this embodiment, including an insufflation machine 1, a suction device 2, a constant pressure container 3 and an intake and exhaust equal volume device 10, and the two ends of the first intake pipe 6 Connect with the exhaust hole of the insufflation machine 1 and the air inlet of the constant pressure container 3 respectively, one end of the second air inlet pipe 7 is connected with the air outlet of the constant pressure container 3, and the two ends of the third air inlet pipe 8 are connected with the second air inlet. Air pipe 7 is connected, and second air inlet pipe 7 is provided with one-way valve 4, and described one-way valve 4 can allow gas to move to the other end from the end that second air inlet pipe 7 is connected with constant pressure container 3, and one-way valve 4 sets Between the two ends of the third intake pipe 8;

[0032] One end of the suction pipe 9 communicates with...

Embodiment 2

[0035] This embodiment is further described on the basis of Embodiment 1. In this embodiment, the air intake and exhaust equalization device 10 includes a sealed box body 101 and a rotating shaft 103, and the sealed box body 101 has a cylindrical cavity , there is a partition in the cavity, and the partition divides the cavity into a front cavity and a rear cavity 102, and the front cavity and the rear cavity 102 are all cylindrical, and the rotating shaft 103 rotates through the partition, and the rotating shaft 103 The two ends of the front chamber are respectively in contact with the front wall of the front chamber and the rear wall of the rear chamber 102. The rotating shaft 103 is provided with a plurality of first blades 104, and the first blades 104 are located in the rear chamber 102. The plurality of first blades 104 are arranged along the The circumferential distribution of the rotating shaft 103, the rear end of the first blade 104 is in contact with the rear wall of...

Embodiment 3

[0041] like figure 2 As shown, this embodiment is further described on the basis of Embodiment 1. In this embodiment, the air intake and exhaust equalization device 10 includes a fixed plate 105, and a driving device 106 is installed on the fixed plate 105. The output shaft of the driving device 106 is connected with two cams 107, the third air intake pipe 8 and the air extraction pipe 9 are placed on the fixed plate 105, and the protruding parts of the two cams 107 can be connected to the third air intake pipe 8 and the air intake pipe 9 respectively. The suction pipe 9 is squeezed and completely closed. When one cam 107 squeezes the third air intake pipe 8, the other cam 107 squeezes the suction pipe 9. One cam 107 can form the abdominal cavity outwards on the suction pipe 9. The negative pressure of exhaust, another cam 107 can form the positive pressure of air intake in the abdominal cavity to the third air intake pipe 8. In this embodiment, the right end of the suction ...

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Abstract

The invention discloses a constant-pressure pneumoperitoneum device which comprises a pneumoperitoneum machine, a suction device, a constant-pressure container and an air inlet and exhaust equal-volume device, wherein the two ends of a first air inlet pipe are connected with an exhaust hole of the pneumoperitoneum machine and an air inlet hole of the constant-pressure container respectively, one end of a second air inlet pipe is connected with an exhaust hole of the constant-pressure container, the two ends of a third air inlet pipe are connected with the second air inlet pipe, the second air inlet pipe is provided with a one-way valve, the one-way valve can allow air to move from one end, connected with the constant-pressure container, of the second air inlet pipe to the other end, and the one-way valve is arranged between the two ends of the third air inlet pipe; and one end of an exhaust pipe is communicated with an air inlet hole of the suction device, a suction valve is connected between the suction device and the air inlet and exhaust equal-volume device, and the air inlet and exhaust equal-volume device can prevent air inlet of the third air inlet pipe and exhaust of the exhaust pipe at the same time. According to the constant-pressure pneumoperitoneum device, when the suction device sucks bleeding spots in the abdominal cavity in time, air images are stable.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a constant pressure insufflation device. Background technique [0002] Ordinary pneumoperitoneum machine inflation is intermittent, pneumoperitoneum inflation and exhaust time is about (inflation time 3s, stop time is 1s for measuring pneumoperitoneum pressure), intermittent inflation to maintain pneumoperitoneum pressure, laparoscopic pneumoperitoneum exists in the abdominal cavity Unstable internal pressure, resulting in unstable space, fluttering of the operative field, affecting observation, especially when intraoperative hemorrhage or exudation leads to suction of intraperitoneal hemorrhage and fluid, etc., there will be a sudden drop in air pressure, intraperitoneal support Unable to maintain, the operator's field of vision changes, and requires re-cognition and identification, which increases the difficulty of the operator's judgment, increases visual fatigue, incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/02A61B17/34
CPCA61B17/0281A61B17/3474
Inventor 郭雄
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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