Physiological fluid shunt system and improvements therefor

Details Physiological fluid shunt system and improvements therefor Physiological fluid shunt system and improvements therefor

1980-12-04

1983-05-10

Truluck, Dalton L.

Surgery

Devices transferring fluids from within one area of body to...

A61M 2500

Patent

active

043824455

ABSTRACT:
Comprehensive shunting systems for draining fluid from a region of the body, such as in the treatment of hydrocephalus. The shunting systems greatly improve the drainage of such fluid and are capable of attaining a significantly extended lifetime of service within the patient being treated. A catheter accommodates the growth of the patient, even when the shunt system is inserted within an infant. The shunt systems improve drainage of fluid through a shunt by preventing proteinaceous buildup resulting in shunt malfunction. In addition, an improved proximal catheter is disclosed which is capable of being caused to assume a position spaced from the body tissue, i.e., ventricular lining. Valve assemblies attain pressure regulation, such that stagnant reservoirs or columns of fluid are eliminated to prevent formation of sediment and ultimately valve malfunction, and collapse of a body cavity due to evacuation of fluid is not encountered. A trocar for inserting the catheter into the body for ease of the patient and surgeon. A syphon effect within the shunt system is also prevented and a variable pressure response of a slit valve at the time of surgery is provided.

REFERENCES:
patent: 3492996 (1970-02-01), Fountain
patent: 3623484 (1971-11-01), Schulte
patent: 3654932 (1972-04-01), Newkirk et al.
patent: 3674033 (1972-07-01), Powers

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