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Assignees
Member
Origin Medical DevicesOrigin Medical Devices develops next-generation ventilator technology focused on universal accessibility, advanced patient support, and streamlined clinical care. Their ventilators serve from neonatal through adult patients and integrate multiple ventilation modes, advanced monitoring, and adaptability for both high- and low-resource settings. The company prioritizes reliability, operational simplicity, and adherence to robust regulatory and quality standards.
Origin Medical Devices develops next-generation ventilator technology focused on universal accessibility, advanced patient support, and streamlined clinical care. Their ventilators serve from neonatal through adult patients and integrate multiple ventilation modes, advanced monitoring, and adaptability for both high- and low-resource settings. The company prioritizes reliability, operational simplicity, and adherence to robust regulatory and quality standards.
Publication Number
US-9816627-B2
Publication Date
2017-11-14
Expiration Date
Abstract
Gas flow control valves comprising a valve housing including a cylindrical interior passage, and a housing opening extending from the interior passage through the housing. The gas flow control valve further comprises a cylindrical rotary valve element including a sidewall, and a rotary valve element opening extending through the sidewall. The valve element is rotatably received within the interior passage of the valve housing, such that the housing opening may be selectively aligned with the rotary valve element opening, and an area of overlap of the housing opening and the valve element opening may be varied by rotating the valve element within the interior passage of the valve housing.
Core Innovation
The disclosed invention provides a gas flow control system that includes a blower type medical ventilator for ventilating patients and a control valve configured for use in the ventilator. The control valve comprises a valve housing with a hollow cylindrical open-ended interior passage and not more than one housing opening formed in a wall of the housing. At least the interior passage of the valve housing is made of or lined by glass.
The control valve further includes a cylindrical valve element comprised of graphite. The valve element includes a valve element inlet and not more than one tapered opening in a wall thereof. The cylindrical valve element is rotatably received within the interior passage of the valve housing so that overlap of the housing opening and the tapered opening forms a single outlet, and the size of the single outlet is varied by rotation of the cylindrical valve element within the interior passage of the valve housing, thereby obtaining a proportional flow valve.
Another disclosed configuration provides a proportional flow valve in which the cylindrical valve element has a first and a second tapered opening in a wall of the valve element, with the first and second tapered openings located at a same axial position along a length of the valve element. The second tapered opening has a narrower width than the first tapered opening, and overlap of the housing opening with the first or second tapered opening forms a single outlet whose size varies by rotation.
Claims Coverage
The partial content provides two independent claims describing a proportional gas flow valve for a blower type medical ventilator, centered on overlap-defined single-outlet proportional flow using a rotatable graphite cylindrical element in a glass-lined cylindrical housing.
Proportional single-outlet overlap valve in a glass-lined cylindrical housing
A gas flow control system comprising a blower type medical ventilator and a control valve having a valve housing with a hollow cylindrical open-ended interior passage and not more than one housing opening, wherein the interior passage is made of or lined by glass, and a rotatably received cylindrical valve element comprised of graphite such that overlap of the housing opening and a tapered opening forms a single outlet.
Rotatable tapered opening alignment to vary outlet size and enable proportional flow
The cylindrical valve element includes a valve element inlet and not more than one tapered opening, and rotation within the interior passage varies the area of overlap forming the single outlet to obtain a proportional flow valve, with gas exiting the single outlet when the housing opening and tapered opening are at least partially aligned.
Two same-axial-position tapered openings enabling flow-range dependence via selective alignment
A control valve with a graphite cylindrical valve element having a valve element inlet and first and second tapered openings located at a same axial position, where the second tapered opening has a narrower width than the first, and wherein overlap with only one of the tapered openings forms a single outlet whose size varies by rotation such that the flow range depends on which tapered opening aligns.
Across the independent claims, the shared inventive concept is proportional gas flow control by forming a single outlet from overlap between a glass-lined cylindrical housing opening and a rotatable graphite cylindrical valve element opening, where rotation varies the outlet area to provide proportional flow and alignment conditions determine which outlet-opening geometry sets the flow.
Stated Advantages
Obtains a proportional flow valve by varying the size of the single outlet through rotation.
Provides gas exit when the housing opening and tapered opening are at least partially aligned.
Provides a proportional flow valve whose flow range depends on which of the two tapered openings aligns with the single outlet.
Documented Applications
Use in a blower type medical ventilator for ventilating patients.
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