Disposable rebreathing canister
First Claim
1. A canister for use with rebreathing apparatus and administering oxygen and anesthesia to a patient comprising:
- means for housing a scrubber including a manifold plate and a rigid container having an interior, said manifold plate having an intake port, an exhaust port and a pair of inner and outer coaxial passages;
a flexible liner disposed within said rigid container and forming an imperforate barrier between the interior of said rigid container and the intake port, the exhaust port and the coaxial passages of said manifold plate;
a scrubber having a cylindrical core passage connected to the inner one of said coaxial passages, and an exterior surface in fluid communication with said outer one of said coaxial passages and said intake and exhaust ports;
and means for pressurizing the space between the interior of said rigid container and said flexible liner.
1 Assignment
0 Petitions
Accused Products
Abstract
A disposable rebreathing canister is disclosed for administering oxygen and anesthesia to patients. The canister essentially comprises a housing for a scrubber, including a manifold plate and a rigid container, and a flexible liner disposed within the rigid container. The liner forms an imperforate barrier between the interior of the rigid container and the manifold plate. A scrubber disposed between the manifold plate and liner chemically reacts with gases conducted to it through one of a pair of coaxial passages formed in the manifold plate. Reacted gases are then moved through a tortuous passage either back to the other one of the coaxial passages or removed through an exhaust port.
The interior of the rigid container connects with a source of pressure that allows the flexible liner to be collapsed, thus forcing treated gases, fresh oxygen and anesthesia into the lungs of the patient.
27 Citations
7 Claims
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1. A canister for use with rebreathing apparatus and administering oxygen and anesthesia to a patient comprising:
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means for housing a scrubber including a manifold plate and a rigid container having an interior, said manifold plate having an intake port, an exhaust port and a pair of inner and outer coaxial passages; a flexible liner disposed within said rigid container and forming an imperforate barrier between the interior of said rigid container and the intake port, the exhaust port and the coaxial passages of said manifold plate; a scrubber having a cylindrical core passage connected to the inner one of said coaxial passages, and an exterior surface in fluid communication with said outer one of said coaxial passages and said intake and exhaust ports; and means for pressurizing the space between the interior of said rigid container and said flexible liner. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification