Apparatus for extraction of at least one element from a cavity and a pressure limitation apparatus
Inventors
KOH, Chong Yong • Cheng, Kiat Jin • Odon, Jorge Ernesto
Assignees
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Publication Number
US-11986217-B2
Publication Date
2024-05-21
Expiration Date
Abstract
There is provided an apparatus for extraction of at least one object from a cavity. The apparatus includes a sleeve including an inflatable section configured to surround the at least one object during inflation; a handle configured to enable a user to hold the sleeve, the handle defining a holding edge of an opening at a first portion of the sleeve; and a handle-mount mounted to a peripheral area around the opening, the handle-mount being for attachment of a pump used for inflating the inflatable section. There is also provided a pressure limitation apparatus configured to operate with a birth assistance device when attached via a conduit.
Core Innovation
The invention relates to an apparatus for extraction of at least one object from a cavity, including a sleeve with an inflatable section configured to surround the at least one object during inflation. The apparatus further includes a handle configured to enable a user to hold the sleeve, where the handle defines a holding edge of an opening at a first portion of the sleeve.
A handle-mount is mounted to a peripheral area around the opening. The handle-mount comprises a pump stand in hinged connection with the handle-mount, and the pump stand is adapted for attachment of a pump used for inflating the inflatable section, or a pump mounting in hinged connection with the handle-mount, with the pump mounting adapted for attachment of a pump used for inflating the inflatable section.
The invention also provides a pressure-indicating handle mount with a moving piston in a main chamber and a compression spring biasing the piston. Piston visual indicators are viewed through a window, including colored bands, numerical indicia, or graduated markings, to indicate inadequate pressure, sufficient pressure, or excess pressure. Additionally, the invention includes a pressure limitation apparatus that limits delivered positive pressure and negative pressure for suction cup or ventouse operation, using a central chamber including a compressible portion and an incompressible portion that remain in fluid communication with check valves.
Claims Coverage
The document includes one independent claim directed to an extraction apparatus and dependent claims defining pump and pressure-indicating or pressure-limiting features. The inventive features are centered on the inflatable sleeve extraction arrangement, a hinged pump stand or pump mounting at a handle-mount, and a pressure-indication and pressure-limitation structure including a piston, spring, visual indicators, and a pressure-limited pump arrangement with compressible and incompressible chamber portions.
Inflatable sleeve configured to surround the object during inflation
A sleeve including an inflatable section configured to surround the at least one object during inflation.
Handle defining the holding edge of the sleeve opening
A handle configured to enable a user to hold the sleeve, the handle defining a holding edge of an opening at a first portion of the sleeve.
Hinged pump stand or pump mounting on the handle-mount
A handle-mount mounted to a peripheral area around the opening, the handle-mount comprising a pump stand in hinged connection with the handle-mount, or a pump mounting in hinged connection with the handle-mount, for attachment of a pump used for inflating the inflatable section.
Pressure-indicating viewing window on the handle mount
A handle mount including a viewing window that indicates pressure in an inflatable section.
Piston-based pressure indication in a main chamber with compression spring
The handle-mount includes a main chamber with a piston that moves within it and a compression spring.
Piston body visual indicators
The piston body having one or more of at least two colored bands, numerical indicia, or graduated markings.
Compressible and incompressible portions in a pump central chamber
A pump whose central chamber has a first compressible portion and a second incompressible portion that remain in fluid communication.
Pump type limited to bulb pump or axial pump
The pump is either a bulb pump or an axial pump.
Overall claim coverage focuses on an apparatus for extracting at least one object from a cavity using a sleeve with an inflatable section, where a handle defines a holding edge and a handle-mount provides a hinged pump stand or pump mounting for inflating the inflatable section. Dependent features add pressure indication via a viewing window and a piston biased by a compression spring with piston-body visual indicators, and add a pressure limitation structure that uses a central chamber with compressible and incompressible portions and limits pump type to a bulb pump or an axial pump.
Stated Advantages
Prevents excessive pressure without user monitoring.
Reduces need for separate pressure gauge/releaser components.
Documented Applications
Birth-assistance extraction using an Odon device with suction cup or ventouse operation.
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