Apparatus for receiving and reinfusing blood
First Claim
1. An apparatus for receiving blood from a patient and reinfusing the blood into the patient, comprising:
- a deformable container, first connection means on the deformable container for connecting the deformable container to a suction line for aspirating blood from the patient, second connection means on the deformable container for connecting the deformable container to a reduced pressure source for sucking the blood into the deformable container from said suction line, one of said connection means also forming means for reinfusing blood from the deformable container into the patient, an outer container of substantial rigidity and having an inside surface defining with the outside of the deformable container a fluid-tight space, and third connection means on said outer container for selectively closing said space to prevent collapse of the deformable container during sucking of blood thereinto, and for connecting said space with a source of a fluid medium for increasing the pressure in said space for reinfusing the blood into the patient from said deformable container through said one connection means.
1 Assignment
0 Petitions
Accused Products
Abstract
In apparatus for receiving and reinfusing a patient'"'"'s own blood, a rigid container encloses a readily deformable inner container, blood being drawn into the readily deformable container by suction and being displaced therefrom by pressure applied between the outer container and the inner container, for pressure reinfusion. Alternatively, the apparatus has a concertina-like container which is held in its expanded condition by a support structure during the blood-intake suction phase, the blood being displaced from the container back into the patient by compression of the container. In another alternative form, the container is a concertina-like container with a high degree of resiliency adapted to expand it into an expanded condition, the container drawing blood from the patient by being compressed before being connected to the patient and then sucking the blood into the container by expansion under the effect of the resiliency.
105 Citations
8 Claims
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1. An apparatus for receiving blood from a patient and reinfusing the blood into the patient, comprising:
- a deformable container, first connection means on the deformable container for connecting the deformable container to a suction line for aspirating blood from the patient, second connection means on the deformable container for connecting the deformable container to a reduced pressure source for sucking the blood into the deformable container from said suction line, one of said connection means also forming means for reinfusing blood from the deformable container into the patient, an outer container of substantial rigidity and having an inside surface defining with the outside of the deformable container a fluid-tight space, and third connection means on said outer container for selectively closing said space to prevent collapse of the deformable container during sucking of blood thereinto, and for connecting said space with a source of a fluid medium for increasing the pressure in said space for reinfusing the blood into the patient from said deformable container through said one connection means.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification