Surgery – Diagnostic testing – Liquid collection
Patent
1995-06-06
1998-06-30
Hindenburg, Max
Surgery
Diagnostic testing
Liquid collection
A61B 500
Patent
active
057726078
ABSTRACT:
A sample container and a fluid collection apparatus are disclosed for withdrawing samples for fluid analysis purposes of unpressurized body fluid from an internal body cavity. The container and apparatus are primarily useful for sampling cerebrospinal fluid obtained through a lumbar puncture or shunt tap. The container and apparatus provide a completely enclosed sample environment which protects the sample from external contamination during the sample-taking process. The enclosed environment also protects sample-taking personnel against direct contact with the fluid. The novel sample container includes an inflatable pouch with a balloon that expands on filling without significantly raising back pressure on the fluid draining from the patient. The pouch is affixed within a transparent, rigid sheath by an inlet port. The apparatus includes a needle assembly with an internal rubber septum. The septum prevents fluid from leaking out when a stylet is removed from the needle bore after the lumbar puncture is performed.
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de Andino J. Michael Martinez
Hindenburg Max
Lew Jeffrey C.
The Nemours Foundation
Wingood Pamela L.
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