Controlled depth injection device
First Claim
Patent Images
1. An injection catheter assembly comprising:
- a first elongated member having a proximal end, a distal end, and an external diameter;
a second elongated member having a proximal region and a distal region,the second elongated member positioned at least partially within the first elongated member,the second elongated member having a piercing tip and being moveable with respect to the first elongated member, anda third elongated member,the third elongated member having a stop,the third elongated member positioned between the second elongated member and the first elongated member;
the third elongated member defining a lumen along a portion of the length of the first elongated member,the third elongate member being rotatable with respect to the first elongate member, the degree of rotation of a first helical member of the third elongated member adjusting the distance that a piercing tip can extend from the distal end of the first elongated member,wherein the second elongated member has a flange and the distal travel of the flange is prevented beyond the stop.
2 Assignments
0 Petitions
Accused Products
Abstract
An injection catheter assembly is provided. This assembly can include an outer elongated member having a proximal end, a distal end, and an external diameter and an inner elongated member having a proximal region and a distal region. The inner elongated member may be positioned at least partially within the outer elongated member, may have a piercing tip at the end of the proximal region and may be rotatable within the outer elongated member with the degree of rotation of the inner elongated member adjusting the distance that the piercing tip can extend from the distal end of the outer elongated member.
117 Citations
13 Claims
-
1. An injection catheter assembly comprising:
-
a first elongated member having a proximal end, a distal end, and an external diameter; a second elongated member having a proximal region and a distal region, the second elongated member positioned at least partially within the first elongated member, the second elongated member having a piercing tip and being moveable with respect to the first elongated member, and a third elongated member, the third elongated member having a stop, the third elongated member positioned between the second elongated member and the first elongated member; the third elongated member defining a lumen along a portion of the length of the first elongated member, the third elongate member being rotatable with respect to the first elongate member, the degree of rotation of a first helical member of the third elongated member adjusting the distance that a piercing tip can extend from the distal end of the first elongated member, wherein the second elongated member has a flange and the distal travel of the flange is prevented beyond the stop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification