Pull locking rotational action needle driver
View Patent ↗A pull-locking rotational action needle driver that comprises an ergonomically designed handle and an integrated locking system that permits left and right handed surgeons to perform the surgical suturing procedure in a less complicated and more secure way by allowing more control over the suturing needle and the area to be stitched, even when the suturing area is small, deep, and/or restricted.
1. A needle driver suitable for suture tissue comprising:
a) an ergonomic handle forming one of the extremes of the needle driver;
b) a transverse plate attached to the inferior side of the ergonomic handle;
c) two rods that run longitudinally through the body of the instrument in an oblique position, wherein the proximal end of each one of said rods is located in the transverse plate forming the pivot points and the rotational axis of said rods; while the distal end of said rods constitutes the end tip of the instrument, wherein the needle grasping action takes place;
d) a harness component comprising two channels obliquely oriented from wherein the rods are pass through and positioned in a particular angle;
e) a pulling element comprising spaces for finger accommodation and two channels obliquely oriented wherein the two rods pass through;
f) means for connecting the pulling element with the harness element;
g) means for turning the rods;
h) means for locking and unlocking the needle comprising two longitudinal toothed bars facing each other at a 180-degree angle, wherein the surfaces of toothed bars are facing each other in a ratchet manner; and
i) means for transmitting the rotational force from one rod to the other.
2. The needle driver of claim 1 , wherein the means for connecting the pulling element with the harness element is a longitudinal bar that connects the said elements and wherein the said bar is located in between the rods.
3. The needle driver of claim 1 , wherein the means for transmitting the rotational force form one rod to the other comprises an area with small radial teeth along the shaft and a pivot located at the proximal ends of each rod that is held at the transverse plate.
4. The needle driver of claim 1 , wherein one of the toothed bars of the locking element are anchored to the handle via the transverse plate and while the other toothed bar is anchored to the pulling element.
5. The needle driver of claim 4 , wherein the toothed bar anchored to the handle via the transverse plate has three teeth and the bar anchored to the pulling element has a single tooth.
6. The needle driver of claim 1 , wherein the means for locking and unlocking the needle is achieved by engaging the teeth of the toothed bars.
7. The needle driver of claim 1 wherein the means for turning the rods comprises rotating a turning knob fitted to one of the rods and located between the ergonomic handle and the pulling element.