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Respirator adapter and respirator system

A ventilator and adapter technology, applied in the field of medical equipment, to achieve average flow rate, improve efficiency, and expand the number of patients

Active Publication Date: 2020-10-02
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Ventilator systems in the prior art as described above are only capable of supplying one patient

Method used

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  • Respirator adapter and respirator system
  • Respirator adapter and respirator system
  • Respirator adapter and respirator system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The specific structures of the first N-way distributor and the second N-way distributor of this embodiment are as follows: image 3 shown. When N=4, the first N-way distributor and the second N-way distributor include a main path and four branch paths. As mentioned above, N=4 is only an example, and N can also be equal to 2, 6, 8, 10 and so on.

[0032] figure 2 The first four-way allocator and the second four-way allocator are generally realized by a simple one-way-multiplex branch structure. A typical one-channel multi-channel distributor 70 such as Figure 7 As shown, a main path 71 and several branch paths 72 are included. However, this traditional branch pipeline can only approximately distribute the gas flow evenly in the case of fewer branches. When multiple branches are connected to the main path at the same time, it is easy to generate eddy current, reverse turbulent flow, and pipeline vibration, resulting in uneven distribution of system flow. Such as ...

Embodiment 2

[0045] Such as Figure 5 Shown is a schematic structural diagram of the first four-way distributor and the second four-way distributor in the second embodiment. Compared with Embodiment 1, the edge of the lower half section of the main path reducing section 112 in this embodiment is a quarter of the perimeter of the ellipse. The foci of the ellipse are on opposite sides of the four branching paths. The major axis of the ellipse is greater than 2×(3×G+h 1 + h 2 + h 3 + h 4 ), preferably 2.1×(3×G+h 1 + h 2 + h 3 + h 4 ).

[0046] Such as Image 6 Shown are schematic diagrams of various embodiments of the present invention and comparative examples of the prior art.

[0047] Define ε as the flow non-uniformity coefficient of each branch path:

[0048]

[0049] where V i is the volume flow rate of each branch path, L / min; is the average value of the volume flow of each branch path, L / min. Image 6 The horizontal axis is the branch number of the four-way distribut...

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PUM

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Abstract

The invention relates to a respirator adapter and a respirator system. The respirator adapter comprises a first N-path distributor (1), a second N-path distributor (2) and N Y-shaped connectors. A main path (11) comprises a main path constant-diameter section (111) and a main path variable-diameter section (112); and the main path constant-diameter section (111) deflects at a preset angle in the direction away from four branch paths. The respirator adapter is connected to a respirator in the prior art, multiple patients can share one respirator, all the branch paths has the average flow speed,the number of the patients capable of being supported by the single respirator can be increased, and the efficiency of the respirator is improved to the maximum extent.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a ventilator adapter and a ventilator system. Background technique [0002] As an effective means of artificially replacing the function of spontaneous ventilation, the ventilator has been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation. Such as figure 1 Shown is a schematic structural diagram of a ventilator system in the prior art. The ventilator system in the prior art includes a ventilator 1', a humidifier 2', a Y-shaped adapter 3', a pressure flow meter 4', a pressure sensor 5' and a first A pressure detection tube 51' and a second pressure detection tube 52'. [0003] The upper one connected to the ventilator 1' receives exhaled air from the patient through a first branch, as indicated by the first large arrow pointing towards the ventilator 1', ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00
CPCA61M16/0003A61M2016/003A61M2016/0027A61M2205/3327A61M2205/332A61M2205/84
Inventor 张成梁呼家佳李平鄢建勤
Owner XIANGYA HOSPITAL CENT SOUTH UNIV