A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/315 (2006.01)
Patent
CA 2400937
A syringe may include various forms of a releasable stop adapted to selectively limit the travel of the syringe plunger within the syringe barrel such that a first amount of ther-apeutic substance may be discharged from the syringe while a residual supply of the therapeutic substance remains in the syringe. Movement of the plunger is permitted to displace the residual supply of fluid from the barrel. Syringes according to the invention find particular application as diluent syringes in a wet/dry drug delivery syringe system having two cooperating syringe barrels in which the residual supply of diluent in the diluent syringe may be used to flush additional and otherwise wasted drug from a drug syringe barrel.
Selon l'invention, une seringue peut comporter diverses formes de butée libérable conçue pour limiter le déplacement du piston de la seringue à l'intérieur de son cylindre, de façon à pouvoir décharger une première dose de substance thérapeutique de la seringue, un résidu de ladite substance restant dans la seringue. Le mouvement du piston permet de déplacer ledit résidu du cylindre. De telles seringues ont une application particulière en tant que seringues de diluant dans un dispositif de seringues d'administration de médicaments secs/humides pourvu de deux cylindres de seringues coopérants, dans lesquels le résidu de diluant dans la seringue de diluant peut servir à rincer un médicament additionnel, sinon perdu, d'un cylindre de seringue de médicaments.
Grabenkort Richard W.
Sprague Karl J.
Ziegler John S.
Abbott Laboratories
Hospira Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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