DEVICE FOR THE INJECTION OF A SOLID OR SEMI-SOLID IMPLANT
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Accused Products
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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Citations
100 Claims
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1-50. -50. (canceled)
- 51. Device for injecting an implant into tissue, wherein it includes a hollow main body to which there is fixed a hollow needle into which the implant is introduced, a secondary body arranged coaxially inside the main body and surrounding the needle, and a piston rod capable of sliding axially inside said hollow needle, the injection device being arranged such that, when the device is pressed against the tissue, said main body slides along the secondary body from a proximal position to a distal position to allow the needle to penetrate said tissue, coupling means being provided between the main body and the piston rod so that the movement of said main body is accompanied by a concomitant movement of the piston rod, the coupling means being released so that the piston rod remains fixed and maintains the implant at a required depth in the tissue until the needle is withdrawn from said tissue when the main body returns from the distal position to the proximal position thereof.
- 94. Device for injecting an implant into tissue, wherein it includes a hollow main body to which there is fixed a hollow needle into which the implant is introduced and which projects from the main body, a secondary body arranged coaxially inside the main body, and a piston rod able to slide coaxially inside said hollow needle, the injection device being arranged such that, when pressure is exerted on the main body to cause the needle to penetrate the tissue, the piston rod remains fixed and maintains the implant at a required depth in the tissue, until the moment when the needle is withdrawn from the tissue, this withdrawal being controlled by said main body, which slides along the secondary body from an initial position in which said main body abuts against a distal end of the secondary body, to a final position in which said main body abuts against a proximal end of the secondary body, the piston rod then gradually penetrating the hollow needle.
Specification