초록 ▼

An injection device is arranged and constructed to simultaneously rotate a needle during its forward translation as a therapeutic agent such as a liquid is ejected therefrom. In one embodiment the injection device is an automatic device including a pump forcing the liquid through a tube to a hand-pi

An injection device is arranged and constructed to simultaneously rotate a needle during its forward translation as a therapeutic agent such as a liquid is ejected therefrom. In one embodiment the injection device is an automatic device including a pump forcing the liquid through a tube to a hand-piece. The needle has a first position in which it is disposed within a housing of the hand-piece, and a second position in which the needle extends outwardly of the hand-piece so that it can be used to eject the liquid, with the needle being automatically uni- or bi-directionally rotated as it is advanced between the first and second positions. In an alternate positions a syringe is provided with a barrel, a plunger extending into the barrel to eject the liquid through the needle, and a plunger which is pushed into the barrel by the operator.

대표청구항 ▼

1. An injection device for delivering a liquid such as a therapeutic agent to a patient, said device comprising:a cylindrical housing; a needle movably supported by said housing and adapted to deliver liquid to the patient's tissues; and a control member mounted in said housing and adapted to cause

1. An injection device for delivering a liquid such as a therapeutic agent to a patient, said device comprising:a cylindrical housing; a needle movably supported by said housing and adapted to deliver liquid to the patient's tissues; and a control member mounted in said housing and adapted to cause said needle to rotate and translate with respect to said housing as said control member is translated without rotating with respect to said housing.