Drug administration needle unit
First Claim
1. A drug administration needle or cannula set comprisingA. a rigid base having(1) an upper surface(2) a relatively flat smooth undersurface area, and(3) a low profile;
- B. a tubular needle or cannula having one end that is pointed and an opposite end that is secured to the base at the middle thereof so that the needle projects from the base generally perpendicular to the base undersurface area;
C. a flexible tube having one end secured to the base in fluid communication with said opposite end of the needle or cannula;
D. a handle;
E. coacting means on the base upper surface and on the handle for releasably connecting the handle to the base; and
F. a sheetlike dressing, said dressing having(1) an adhesive surface,(2) an area that is appreciably larger than that of the base undersurface, and(3) means defining an opening in the dressing so that when the dressing is draped over the upper surface of the base with said flexible tubing projecting through said opening, the dressing lies flat against the base upper surface with a relatively wide annular edge margin of the dressing extending beyond the periphery of the base.
5 Assignments
0 Petitions
Accused Products
Abstract
A needle or cannula set especially adapted to access an implanted drug delivery portal includes a rigid base having a flat undersurface and a low profile. The base supports one end of a needle so that the needle projects from the base perpendicular to the base undersurface. One end of a flexible tube is secured to the base in fluid communication with the needle and the opposite end of the tube is terminated by a connector. A complaint pad is mounted to the base undersurface to assure proper seating of the base against the skin of the patient when the needle unit is inserted in the patient. The set also includes a handle which releasably connects to the base to facilitate inserting the needle unit into and withdrawing it from the patient and an adhesive dressing which is arranged to drape over the base with its edge margin extending all around the base for anchoring the needle unit to the patient and for providing an occlusive seal all around the puncture site. The set may also include a needle cover releasably coupled to the base to protectively enclose the needle and compliant pad prior to using the needle unit.
208 Citations
11 Claims
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1. A drug administration needle or cannula set comprising
A. a rigid base having (1) an upper surface (2) a relatively flat smooth undersurface area, and (3) a low profile; -
B. a tubular needle or cannula having one end that is pointed and an opposite end that is secured to the base at the middle thereof so that the needle projects from the base generally perpendicular to the base undersurface area; C. a flexible tube having one end secured to the base in fluid communication with said opposite end of the needle or cannula; D. a handle; E. coacting means on the base upper surface and on the handle for releasably connecting the handle to the base; and F. a sheetlike dressing, said dressing having (1) an adhesive surface, (2) an area that is appreciably larger than that of the base undersurface, and (3) means defining an opening in the dressing so that when the dressing is draped over the upper surface of the base with said flexible tubing projecting through said opening, the dressing lies flat against the base upper surface with a relatively wide annular edge margin of the dressing extending beyond the periphery of the base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification