Filter for use in medical procedures
AssigneePall Corporation
InventorCharles S. Booth
Life of this patent
Estimating the term…
Abstract
A gas filler device for use in medical procedures such as laparoscopy is disclosed. Preferably, the gas filter device includes a housing having a first side wall and a second side wall, and a gas filter including a porous element including a hydrophobic membrane, the gas filter device allowing gas to pass through the porous filter element and the first side wall.
Claims32
A gas filter device for use with positive pressure during a medical procedure comprising:
- a filter housing having an inlet port and an interior cavity, the housing having a first side wall and a second side wall, at least the first wall allowing gas to pass therethrough;
- and,
- a gas filter comprising a porous filter element comprising a hydrophobic membrane, and a odor-reducing element comprising an activated carbon medium;
- wherein the filter device is arranged to allow gas to pass through the inlet port into the interior cavity, through the porous filter element, the odor-reducing element and through the first side wall of the housing.
A gas filter device for use with positive pressure during a medical procedure comprising:
- a filter housing having an inlet port and an interior cavity, the housing having a first side wall and a second side wall, at least the first side wall allowing gas to pass therethrough;
- and,
- a gas filter comprising a porous filter element comprising a hydrophobic retentive member;
- wherein the filter device is arranged to allow gas to pass through the inlet port into the interior cavity, and through the porous filter element and the first side wall of the housing.
A gas filter device for use with positive pressure during a medical procedure comprising:
- an inlet port;
- a first side wall and a second side wall, the device including an interior cavity between the first and second walls;
- wherein at least the first side wall comprises a gas filter comprising a porous filter element comprising a hydrophobic membrane, the gas filter having a first surface and an opposing second surface;
- wherein the first side wall comprises the second surface of the gas filter, and wherein the gas filter device is arranged to allow gas to pass through the inlet port into the interior cavity and through the gas filter and the first side wall.
A method for filtering gas using positive pressure during a medical procedure comprising:
- passing gas from the abdominal cavity of a patient into a gas filter device comprising a filter housing having an inlet port and an interior cavity, the housing having a first side wall and a second side wall;
- and a gas filter comprising a first porous filter element comprising a hydrophobic membrane;
- and,
- passing the gas from the inlet port into the interior cavity, and through the gas filter and the first side wall of the housing to provide a filtered gas.
A method for filtering gas using positive pressure during a medical procedure comprising:
- passing gas from the abdominal cavity of a patient into a gas filter device comprising an inlet port, an interior cavity, a first side wall and a second side wall;
- and a gas filter comprising at least one porous filter element comprising a hydrophobic membrane;
- and,
- passing the gas from the inlet port into the interior cavity, and through the gas filter and the first side wall to provide a filtered gas.
A method for filtering gas using positive pressure during a medical procedure comprising:
- passing gas from the abdominal cavity of a patient into a gas filter device comprising a filter housing having an inlet port and an interior cavity, the housing having a first side wall and a second side wall;
- and a gas filter comprising a first porous filter element comprising a hydrophobic retentive member, and,
- passing the gas from the inlet port into the interior cavity, and through the gas filter and the first side wall of the housing to provide a filtered gas.
A method for filtering gas using positive pressure during a medical procedure comprising:
- passing gas from the abdominal cavity of a patient into a gas filter device comprising an inlet port, an interior cavity, a first side wall and a second side wall;
- and a gas filter comprising at least one porous filter element comprising a hydrophobic retentive member;
- and,
- passing the gas from the inlet port into the interior cavity, and through the gas filter and the first side wall to provide a filtered gas.
Dependencies are inferred from the claim text.