Back to results
US 5,603,706 AGranted
Infusion apparatus
OwnerPhilip Wyatt, Gary Schaefferinventors
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 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.
Claims25
An entry port structure usable with a cannula, comprising:
- (a) a tubular body having a centrally disposed fluid passageway and first and second ports in communication with said passageway;
- and
- (b) closure means for closing said first port of said tubular body, said closure means comprising:
- (i) septum holding means for holding a septum, including a generally ring shaped member telescopically received within said first port, said member having an inner wall defining a chamber and including septum retaining means for retaining a septum in said chamber said retaining means comprising a segment extending inwardly from said inner wall into said chamber;
- and
- (ii) a septum disposed within said chamber, said septum being penetrable by the cannula, and having a groove for receiving said segment of said ring shaped member.
3 more elements
An apparatus for infusing liquids from a liquid source into a patient comprising:
- (a) an entry port structure having a tubular body, said tubular body having a locking member and first and second ports, said first port being closed by closure means comprising:
- (i) a generally ring shaped member telescopically received within said first port said member having an inner wall defining chamber and including a septum retaining means for retaining a septum in said chamber, said retaining means comprising a radially inwardly extending segment extending from said wall into said chamber;
- and
- (ii) a septum mounted within said generally ring shaped member said septum having a groove for receiving said radially inwardly extending segment of said generally ring shaped member;
- and
- (b) a connector for releasable interconnection with said entry port structure, said connector comprising:
- (i) a base;
- (ii) a cannula connected to said base and extending therefrom;
- and
- (iii) locking means connected to said base and extending therefrom for locking engagement with said locking member of said entry port structure to lockably interconnect said connector with said entry port structure, said locking means being movable from a first locked position to a second unlocked position.
7 more elements
An entry port structure usable with a cannula, comprising:
- (a) a tubular body having an inner wall, a centrally disposed fluid passageway and first and second ports in communication with said passageway;
- and
- (b) closure means for closing said first port of said tubular body, said closure means comprising:
- (i) septum holding means for holding a septum, including a generally ring shaped member telescopically received within said first port, said member having an outer wall and an inner wall defining a chamber;
- (ii) a septum disposed within said chamber, said septum having first and second portions and retaining means disposed between said first and second portions for retaining said septum in said chamber, said septum being penetrable by the cannula;
- and
- (iii) locking means for locking said closure means within said first port, said locking means comprising a protuberance formed on one of said outer wall of said generally ring shaped member and said inner wall of said tubular body and a protuberance receiving groove formed on the other of said outer wall of said generally ring shaped member and said inner wall of said tubular body.
4 more elements
An entry port structure usable with a cannula, comprising:
- (a) a tubular body having an inner wall, a centrally disposed fluid passageway and first and second ports in communication with said passageway;
- and
- (b) closure means for closing said first port of said tubular body, said closure means comprising:
- (i) septum holding means for holding a septum, including a generally ring shaped member telescopically received within said first port, said member having an outer wall and an inner wall defining a chamber said inner wall having a septum retaining means;
- (ii) a septum disposed within said chamber, said septum having a first diameter portion, a second diameter portion and means disposed intermediate said first and second diameter portions for engagement with said septum retaining means of said ring shaped member;
- and
- (iii) locking means for locking said closure means within said first port, said locking means comprising a protuberance formed on one of said outer wall of said generally ring shaped member and said inner wall of said tubular body and a protuberance receiving cavity formed on the other of said outer wall of said ring shaped member and said inner wall of said tubular body.
4 more elements
Dependencies are inferred from the claim text.