Device for the injection of a solid or semi-solid implant

Details Device for the injection of a solid or semi-solid implant Device for the injection of a solid or semi-solid implant

2005-11-15

2011-10-04

Lucchesi, Nicholas D (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into body by contact with wound...

C604S059000, C604S060000, C604S048000, C604S218000, C604S228000, C604S197000

Reexamination Certificate

active

08029458

ABSTRACT:
The invention relates to a device which is used to inject an implant (6) into tissues (50). The inventive device is characterized in that it comprises: a main hollow body (2; 2′) having a hollow needle (4; 4′) fixed thereto, into which the implant (6) is introduced; a secondary body (26; 26′) which is disposed coaxially inside the main body (2; 2′) and which surrounds the needle (4; 4′); and a plunger rod (36; 36′) which can slide coaxially inside the hollow needle (4; 4′). The injection device (1; 1′) is arranged such that: (i) when it is pressed against the tissues (50), the main body (2; 2′) slides along the length of the secondary body (26; 26′) from a proximal position to a distal position such that the needle (4; 4′) can penetrate the tissues (50), whereby the movement of the main body (1; 1′) is accompanied by the concomitant movement of the plunger rod (36; 36′); and (ii) the plunger rod (36; 36′) remains fixed and maintains the implant (6) at the required depth in the tissues (50) until the needle (4; 4′) is removed therefrom when the main body (2; 2′) is returned from the distal position to the proximal position.

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