초록 ▼

An improved medication infusion set is provided of the type having a soft cannula for subcutaneous delivery of a selected medication to a patient. The infusion set comprises a cannula housing having a soft cannula protruding therefrom and a self-sealing septum mounted at an upstream end of the cannu

An improved medication infusion set is provided of the type having a soft cannula for subcutaneous delivery of a selected medication to a patient. The infusion set comprises a cannula housing having a soft cannula protruding therefrom and a self-sealing septum mounted at an upstream end of the cannula. The cannula housing is initially assembled with an insertion hub having an elongated insertion needle extending through the septum and cannula for transcutaneously placing the cannula followed by separation of the insertion hub from the cannula housing. An infusion hub is then assembled with the cannula housing and includes a short infusion needle for coupling the cannula with the selected medication supplied from a source via a length of infusion tubing. The infusion hub includes a protective shroud plate protruding beyond a tip end of the infusion needle to minimize risk of patient contact therewith, and adapted for slide-fit reception into a matingly shaped slot formed in the cannula housing to insure a one-way and high strength interconnection between the cannula housing and infusion hub. Releasible latch members interlock the infusion hub with the cannula housing in a manner permitting periodic separation when desired.

대표청구항 ▼

[ What is claimed is:] [1.] A medication infusion set for transcutaneous delivery of a selected medication to a patient, said infusion set comprising:a cannula housing having a soft cannula mounted thereon with a distal end of said cannula protruding from said cannula housing, a resilient self-seali

[ What is claimed is:] [1.] A medication infusion set for transcutaneous delivery of a selected medication to a patient, said infusion set comprising:a cannula housing having a soft cannula mounted thereon with a distal end of said cannula protruding from said cannula housing, a resilient self-sealing septum mounted on said cannula housing generally at a proximal end of said cannula for normally closing said cannula proximal end, and a retainer mounted within said cannula housing for retaining said septum within said cannula housing, wherein said retainer comprises a retainer clip for snap-fit mounting within said cannula housing, said retainer clip having a needle port formed therein; andan infusion hub having an infusion needle mounted thereon with a distal end of said infusion needle protruding from said infusion hub and being adapted for connection to a source of the selected medication, said infusion needle being adapted for insertion through said septum for coupling with said cannula,wherein said infusion hub further includes a protective shroud protruding therefrom in overlying relation with said infusion needle, said shroud being a guide slidably insertable into a generally matingly shaped slot formed in said cannula housing for one-way guided reception of said infusion needle through said septum andwherein said cannula housing and said infusion hub further includes releasibly interengageable latch members for releasibly connecting said infusion hub to said cannula housing with said infusion needle inserted through said septum.