Device for penetrating hemodynamic monitoring catheter through cabin wall of low-pressure low-oxygen cabin
A technology of hemodynamics and hypoxic chambers, applied in the direction of pipes, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problem of difficult to obtain experimental data, can not represent the real situation, and can not continue to conduct experimental animal hemodynamics Monitoring and other issues
Active Publication Date: 2020-11-24
GENERAL HOSPITAL OF TIANJIN MEDICAL UNIV
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Problems solved by technology
These operating methods have changed the low-pressure hypoxic experimental environment, and the experimental results obtained cannot represent the real situation in the low-pressure hypoxic experimental environment.
[0006] The existing operation method has cumbersome steps, cannot continuously monitor the hemodynamics of experimental animals, and it is difficult to obtain complete experimental data
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Embodiment Construction
[0020] The present invention will be further explained below in conjunction with the drawings.
[0021] A device for the hemodynamic monitoring catheter to penetrate the bulkhead of the low-pressure hypoxic compartment (see figure 1 ), including the rubber stopper, the rubber stopper includes a cylindrical body 1 (see figure 2 ), the middle of the cylindrical body is provided with a middle hole 2 (the diameter of the middle hole is the same as the diameter of the hemodynamic monitoring catheter), and cylindrical grooves 3 are provided at both ends of the cylindrical body, along the axial length direction of the cylindrical body , From the middle hole to the outer surface of the cylindrical body is provided with an arc-shaped cut 4 (see image 3 ), the arc design of the incision can increase the contact area between the incisions, so that after the hemodynamic monitoring catheter is inserted from the side arc incision of the cylindrical body, the rubber stopper has good airtightnes...
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The invention discloses a device for penetrating a hemodynamic monitoring catheter through the cabin wall of a low-pressure low-oxygen cabin. The device comprises a rubber plug, wherein the rubber plug comprises a cylindrical body; a middle hole is formed in the middle part of the cylindrical body; cylindrical grooves are formed in two ends of the cylindrical body; an arc-shaped notch is formed from the middle hole to the outer surface of the cylindrical body in the axial length direction of the cylindrical body; the device also comprises two assembly type knobs; each assembly type knob is formed by oppositely arranging two half knobs in the same shape; a groove with the semicircular cross section is formed in the middle part of each half knob; a rubber pad is arranged at the inner surfaceof each groove; and the sealing performance when the hemodynamic catheter passes through the assembly type knobs is guaranteed. The device provided by the invention has the advantages that the goal of penetrating a rat hemodynamics monitoring catheter through the cabin wall of the low-pressure low-oxygen cabin can be achieved; invasive hemodynamic monitoring and arterial blood gas analysis through blood drawing are performed in closed environment of the low-pressure low-oxygen cabin; and the sterility principle of various experiment operations is guaranteed.
Description
Technical field [0001] The invention relates to the field of experimental equipment for preparing rat models in a low-pressure and hypoxic cabin simulating a high-altitude, low-pressure and hypoxic environment, and particularly relates to a device in which a hemodynamic monitoring catheter of a closed environment for experimental rats penetrates the bulkhead of the low-pressure and hypoxic cabin. Background technique [0002] At altitudes above 3000 meters, low pressure and low oxygen have a huge impact on the human body. Diseases caused by high altitude low pressure and hypoxia are the research focus of altitude medicine and anti-hypoxia medicine. The preparation of experimental animal models of low pressure and hypoxia is an important means to realize scientific research in this field. [0003] In recent years, related research on animal models of hypobaric and hypoxic injury is at a bottleneck stage. The animal models of hypobaric and hypoxic are not stable enough, and more eval...
Claims
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IPC IPC(8): F16L5/10
CPCF16L5/10
Inventor 张鹏李仕聪罗超王元国张金霞
Owner GENERAL HOSPITAL OF TIANJIN MEDICAL UNIV