Back to results
US 5,356,396 AGranted
Infusion apparatus
AssigneeMedical Associates Network Inc.
InventorsPhilip Wyatt, Gary Schaeffer, Freddy Zinger
Life of this patent
Estimating the term…
Abstract
A family of variously configured, new, improved and universally compatible infusion sites and medical connectors that employ a recessed cannula and which function to interconnect uniquely configured T sites, Y sites, heparin locks and the like with a liquid source, such as an I.V. source.
Claims18
An apparatus for infusing liquids into a patient comprising:
- (a) a Y site having a tubular body portion and an arm portion extending laterally therefrom, said tubular portion having a locking member and first and second ports, said first port being closed by a penetrable seal;
- and
- (b) a connector for releasable interconnection with said Y site, said connector comprising:
- (i) a cannula;
- and
- (ii) a sheath assembly including a body having a longitudinally extending central axis and comprising a cylindrical wall surrounding said cannula over its length, said wall having a slot for receiving said arm portion of said Y site and including first locking means for locking engagement with said locking member of said Y site to lockably interconnect said connector with said Y site, said locking means being movable from a first locked position to a second unlocked position and comprising a pair of longitudinally extending locking members defined by spaced apart longitudinally extending slits provided in said cylindrical wall of said body, said locking members being yieldably deformable from a first position substantially parallel with said central axis to a second, non-parallel position.
3 more elements
An apparatus for infusing liquids into a patient comprising:
- (a) a Y site having a tubular body portion and an arm portion extending laterally therefrom, said tubular portion having a locking member and first and second ports, said first port being closed by a penetrable seal, said locking member comprising a locking protuberance extending radially outwardly from said body portion and including a stem portion and an enlarged plate-like portion;
- and
- (b) a connector for releasable interconnection with said Y site, said connector comprising:
- (i) a cannula;
- and
- (ii) a sheath assembly including a body comprising a cylindrical wall surrounding said cannula over its length, said wall having a slot for receiving said arm portion of said Y site and including first locking means for locking engagement with said locking protuberance of said Y site to lockably interconnect said connector with said Y site, said locking means being movable from a first locked position to a second unlocked position and being receivable between said tubular body portion of said Y site and said plate-like portion.
3 more elements
A connector for releasable interconnection with an entry port structure having a body portion and first and second ports, said first port being closed by a penetrable seal, said connector comprising:
- (a) a generally cylindrical sheath portion for receiving the body portion of the entry port structure and having first and second ends, said first end being open to receive a portion of said entry port structure and a second end having cannula support and including first and second locking means for lockably engaging said entry port structure, said first locking means comprising a pair of longitudinally extending locking members defined by spaced-apart longitudinally extending slits formed in said sheath portion;
- (b) a cannula connected to said cannula support and extending into said sheath portion;
- (c) release means connected to said sheath portion for releasing said locking means to permit disconnecting of said sheath portion from said entry port structure.
An apparatus for infusing liquids from a liquid source into a patient comprising:
- (a) a Y site having a tubular body portion and an arm portion extending laterally therefrom, said tubular portion having a locking member and first and second ports, said first port being closed by a penetrable seal, said locking member comprising a locking protuberance extending radially outwardly from said body portion and including side portions, a top portion and an end wall;
- and
- (b) a connector for releasable interconnection with said Y site, said connector comprising:
- (i) a cannula in communication with the liquid source;
- and
- (ii) a sheath assembly including a body comprising a cylindrical wall surrounding said cannula over its length, said wall having a slot for receiving said arm portion of said Y site and including first locking means for locking engagement with said locking protuberance of said Y site to lockably interconnect said connector with said Y site, said locking means being movable from a first locked position to a second unlocked position and being receivable between said tubular body portion of said Y site and said top portion of said protuberance.
3 more elements
A connector for releasable interconnection with an entry port structure having a body portion, including a locking protuberance extending therefrom and first and second ports, said first port being closed by a penetrable seal, said connector comprising:
- (a) a generally cylindrical sheath portion for receiving the body portion of the entry port structure and having first and second ends, said first end being open to receive a portion of said entry port structure and a second end having cannula support and including locking means for lockably engaging the locking protuberance of the entry port structure, said locking means comprising a pair of spaced-apart, oppositely disposed locking ears movable from a first position in locking engagement with the locking protuberance to a second disengagement position;
- (b) a cannula connected to said cannula support and extending into said sheath portion;
- and
- (c) release means connected to said sheath portion for releasing said locking means to permit disconnecting of said sheath portion from said entry port structure, said release means comprising a pair of spaced-apart gripping members extending tangentially from said sheath portion.
1 more element
Dependencies are inferred from the claim text.