Adaptor for connecting a cannula to a gas machine
OwnerLeonides Y. Tevesinventor
Life of this patent
Estimating the term…
Abstract
A cannula for delivering gas to an abdominal cavity includes a tubular main body that defines a lumen. A hub is formed at the proximal end of the main body and a central bore is formed in the hub. An annular groove is formed in an outer periphery of the hub. A nipple has a radially-inwardly extending annular ridge formed in it and the diameter of the annular ridge is slightly less than a diameter of the annular groove so that the annular groove releasably but snugly receives the annular ridge. An elongate hose is adapted to provide fluid communication between a remote gas machine and an enclosed space defined by the nipple and the hub when the nipple is attached to the hub. Gas under pressure is delivered to an abdominal cavity of a patient through the hose, the enclosed space, and the lumen.
Claims16
A method for delivering gas to an abdominal cavity, comprising the steps of:
- providing a cannula comprising:
- an elongate, tubular main body having a lumen;
- a thin, flat disc-shaped hub connected to a proximal end of said elongate, tubular main body;
- a central aperture formed in said thin, flat disc-shaped hub;
- said central aperture slideably receiving said proximal end of said elongate, tubular main body;
- an annular groove formed in an outer periphery of said thin, flat disc-shaped hub;
- a staple item of commerce in the form of a conventional baby bottle nipple having a radially-inwardly extending annular ridge formed therein;
- said conventional baby bottle nipple formed of a flexible and resilient material;
- said radially-inwardly extending annular ridge having a diameter slightly less than a diameter of said annular groove so that said annular groove releasably but snugly receives said radially-inwardly extending annular ridge;
- at least one sealable valve formed in said conventional baby bottle nipple;
- and
- an elongate hose adapted to provide fluid communication between a remote gas machine and an enclosed space defined by said conventional baby bottle nipple and said thin, flat disc-shaped hub when said conventional baby bottle nipple is attached to said thin, flat disc-shaped hub;
- and
- delivering gas under pressure to an abdominal cavity of a patient through said elongate hose, said enclosed space, and said lumen.
Dependencies are inferred from the claim text.