07220248 is referenced by 23 patents and cites 202 patents.

A flexible piston rod includes a piston and a row of elements, each having top, bottom, and lateral surfaces, the top surface of one element being connected to the bottom surface of an adjacent element by a hinge that allows the two adjacent elements to pivot from a first position, where a portion of the top surface of one element abuts a corresponding portion of the bottom surface of the adjacent element and corresponding to a rectilinear, relatively stiff configuration of the piston rod, to a second position wherein the top surface of one element is spaced from the bottom surface of the adjacent element and corresponding to a curved configuration of the piston rod. The lateral surface of each element has first and second mutually-opposed cylindrical surface portions incorporating a thread for meshing with a corresponding thread of an actuator for displacing the piston rod longitudinally.

Title
Flexible piston rod
Application Number
11/158277
Publication Number
7220248 (B2)
Application Date
June 21, 2005
Publication Date
May 22, 2007
Inventor
Morten Mernøe
Charlottenlund
DK
Agent
Fish & Richardson P C
Assignee
M2 Medical
DK
IPC
A61M 5/315
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