Filter system for removal of gas and particulates from cellular fluids
A particle filter and exhaust filter technology, which is applied in the directions of liquid degassing, liquid degassing through filtration, blood circulation treatment, etc., can solve the problem of check valve stuck in the closed position, blocking liquid flow, manufacturing, inventory and Complicated assembly and other issues
Inactive Publication Date: 2004-11-03
SIMS一级公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In some cases, the check valve is separate from the filter, which can complicate manufacturing, packaging and assembly
Also, prior art check valves often get stuck in the closed position or block flow when opened by entraining the valve in the flow
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] refer to figure 1 , The filter system according to the present invention includes a degassing filter 2 , an input line 4 , an output line 6 , a pillow-shaped initial feeder 8 and a pipe clamp 10 . The input and output lines have Luer connectors, which are well known in the art, and which allow the input line to be attached to the fluid source and the output line to be attached to the patient line.
[0021] Figure 2 is a vertical cross-section of a filter device showing several features of the invention in greater detail. The upper part 12 is generally cylindrical, which constitutes a vortex chamber 14 . Although the vortex chamber is preferably cylindrical, it may be of other shapes that support the formation of vortices in the incoming liquid. The inlet port 16 directs the incoming liquid into the chamber in a direction tangential to the outer wall of the chamber to form a vortex in the liquid. Due to the density difference, the forces in the vortex separate the gas...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A gas elimination system includes a gas elimination device and a priming system. The gas elimination device includes a vortex chamber that forms a vortex in the fluid flowing into the chamber and a particulate filter that removes particles from the fluid. The particulate filter is located in the vortex chamber such that the vortex is formed in a substantial volume of the chamber before it encounters the particulate filter. When the fluid encounters the particulate filter, the vortex is generally stopped, and additional released gasses rise through the open top of the particulate filter. The device also includes an outlet chamber connected to the vortex chamber, and the particulate filter extends into the outlet chamber. A check valve is located at the outlet of the outlet chamber to shut off flow when the device contains excess gas. The priming system in the form of a pillow block is arranged to force air or fluid upward to dislodge the check valve, should it become stuck in the valve seat.
Description
technical field [0001] The present invention relates to filter technology for the removal of gases and particles from liquids, especially cell fluids. The invention finds particular application in the removal of air and particulates from blood during blood transfusions. Background technique [0002] It is often necessary to remove excess particulates and gases from liquids by filtration. An example of such a situation is during infusion of physiological fluids, including blood and blood products. When liquids are heated, gas removal is even more important due to outgassing from heating. [0003] Since particles, gases and liquids have different densities, it is known to separate them by centrifugal forces occurring in eddies generated in the liquid. It is therefore known to introduce the liquid into the separation chamber through an inlet opening tangential to the separation chamber. The incoming liquid is directed into a circular flow pattern, with gas tending to accumu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/36B01D19/00
CPCB01D19/0057B01D19/0031A61M1/3627
Inventor D·A·奥利弗
Owner SIMS一级公司