Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-05-28
1995-05-02
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604256, 604 27, 604332, 604335, A61M 500
Patent
active
054114918
ABSTRACT:
The one-way cross-slit valve of the invention is made of an elastomeric material and has a hollow cylindrical body with first and second ends and an axis and a passageway through the body, the passageway being entirely intercepted by a ridge and valley wall or web structure integrally joined to the cylindrical body. There are just two ridges in the form of lands that extend diametrically and intersect at a right angle at about the axis of the valve body and are slitted at the intersection to provide duckbill valve action. The ridges constitute the apices of mutually intersecting partially folded wall portions that are V-shaped in section, the V's spreading towards the first end where the intersecting walls join and form the valleys and the one-way action of the valve allowing fluid to move only towards the second end. The novel low profile gastrostomy tube combines a conventional dome and tubular shaft with the one-way cross-slit valve of the invention.
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Gauderer et al, "Feeding Gastrostomy Button: Experience and Recommendations", Journal of Pediatric Surgery, vol. 23, No. 1, pp. 24-28 (1988).
Goldhardt et al, Appln. Ser. No. 8/069,038, filed May 28, 1993 for "Low Profile Gastrostomy Device With Dome".
Goldhardt Donald J.
Hirsch William H.
Abbott Laboratories
Drayer Lonnie R.
Gring N. Kent
Nickey Donald O.
Rosenbaum C. Fred
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