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US 4,895,570 AGranted
Locking port shroud for peritoneal dialysis tubing connector
AssigneeAbbott Laboratories
InventorMark E. Larkin
Life of this patent
Estimating the term…
Abstract
A tubing connector adapted for peritoneal dialysis connections between tubing sets and containers of dialysate. The connection prevents inadvertent disengagement of tubing sets.
Claims17
A connection for medical tubing, comprising:
- a first tube having a flange and a pierceable diaphragm;
- a second tube having a piercing pin extending therefrom for piercing said diaphragm and an exterior annular flange rearward of said piercing pin;
- a tubular collet, having a splayed end, slideable along said second tube and said pin, further including a cored-out slot defining a flexible finger, said finger having a detent means on an exterior surface;
- and
- a tubular locking ring, slideable on said collet from a first position to a second position, including an annular cam on an interior surface;
- said annular cam being adapted to engage said detent means on said collet in said first position without forcing said flexible finger radially inwardly, depress said detent means radially inwardly to a position within the diameter and forward of said second tube annular flange while said locking ring slides intermediate from said first to said second position, and release said detent means in said second position while forcing said flexible finger radially inwardly.
3 more elements
A connection for medical tubing, comprising:
- a first tube having a flange and a pierceable diaphragm;
- a second tube having a piercing pin extending therefrom for piercing said diaphragm;
- a tubular collet, having a splayed end with gripper means, slideable along said second tube and said pin;
- and
- a tubular locking ring disposed slideably on said collet;
- said collet and locking ring having means for guiding said locking ring helically from said first to said second position.
3 more elements
Dependencies are inferred from the claim text.