Bendable needle assembly
First Claim
1. A needle assembly comprising:
- a needle including an elongated tubular needle body having open distal and proximal ends, said needle body including a tip portion defining said distal end and a main portion defining said proximal end, said tip portion bendable relative to said main portion; and
an elongated stylet having a solid shank complementary to said tubular needle body and slidably movable therewithin substantially coaxially thereto in the direction between said proximal and distal ends of said needle body, said stylet shank having solid distal and proximal ends;
at least one of said distal end of said needle body and said distal end of said stylet shank being beveled at an angle to a longitudinal axis of corresponding one of said needle body and said stylet shank;
said at least one beveled distal end of one of said needle body and said stylet shank exerting a bending force to said tip portion of said needle body against said beveled distal end during advancement of said needle body through a biological tissue;
said stylet controlling an angle of inclination of said tip portion of said needle body relative to said main portion thereof in order to steer said needle during advancement thereof through said biological tissue.
0 Assignments
0 Petitions
Accused Products
Abstract
The needle assembly comprises a needle including an elongated tubular needle body having open distal and proximal ends, and an elongated stylet having a solid shank complementary to the tubular needle body and slidably movable therewithin substantially coaxially thereto. The needle body includes a tip portion defining the distal end and a main portion defining the proximal end. Moreover, the tip portion bendable relative to the main portion. In turn, the stylet shank has a solid distal end. Furthermore, at least one of the distal end of the needle body and the distal end of the stylet shank is beveled at an angle to a longitudinal axis of corresponding one of the needle body and the stylet shank. The beveled distal end exerts a bending force to the tip portion of the needle body against the beveled face during advancement of the needle body through a human tissue.
-
Citations
18 Claims
-
1. A needle assembly comprising:
-
a needle including an elongated tubular needle body having open distal and proximal ends, said needle body including a tip portion defining said distal end and a main portion defining said proximal end, said tip portion bendable relative to said main portion; and an elongated stylet having a solid shank complementary to said tubular needle body and slidably movable therewithin substantially coaxially thereto in the direction between said proximal and distal ends of said needle body, said stylet shank having solid distal and proximal ends; at least one of said distal end of said needle body and said distal end of said stylet shank being beveled at an angle to a longitudinal axis of corresponding one of said needle body and said stylet shank; said at least one beveled distal end of one of said needle body and said stylet shank exerting a bending force to said tip portion of said needle body against said beveled distal end during advancement of said needle body through a biological tissue; said stylet controlling an angle of inclination of said tip portion of said needle body relative to said main portion thereof in order to steer said needle during advancement thereof through said biological tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification