Sickle needle and method
View Patent ↗A surgical needle which is particularly suited for use in limited space applications and a method for its use are disclosed. The surgical needle generally includes an arcuate portion having a first end and a second end. A pointed tip is disposed near the first end. There is a relatively short, straight shank near the second end of the arcuate portion which extends from the arcuate portion at a predetermined angle. The predetermined angle is defined by the intersection of the arcuate portion and the shank. This predetermined angle is within a range of about 23° to about 29°. In a particularly useful embodiment, the predetermined angle is approximately 26°. Further, an extrapolation of a longitudinal axis of the shank intersects the arcuate portion of the surgical needle.
1. A surgical suturing needle comprising:
an arcuate portion having a first end, a second end and a radius;
a pointed tip disposed near the first end of the arcuate portion; and
a relatively straight shank disposed adjacent the second end of the arcuate portion, the shank and the arcuate portion forming a juncture angle therebetween, the juncture angle being defined by a longitudinal axis of the shank and a tangent of the second end of the arcuate portion;
wherein an extrapolation of the longitudinal axis of the shank intersects the arcuate portion of the surgical needle up to about 0.100 inches from the pointed tip.
2. The surgical suturing needle according to claim 1 , wherein the juncture angle is between about 23° and about 29°.
3. The surgical suturing needle according to claim 1 , wherein a length of the shank is less than the radius of the arcuate portion.
4. The surgical suturing needle according to claim 1 , wherein a length of the shank being in the range of about 0.078 inches to about 0.108 inches.
5. The surgical suturing needle according to claim 1 , wherein at least a portion of the arcuate portion having at least one relatively flat side.
6. The surgical suturing needle according to claim 1 , wherein the shank having a substantially circular cross-section.
7. The surgical suturing needle according to claim 1 , wherein the shank further includes a bore which receives a portion of a suture material.
8. The surgical suturing needle according to claim 1 , wherein an extrapolation of the longitudinal axis of the shank intersects the arcuate portion at about 0.100 inches from the pointed tip.
9. The surgical suturing needle according to claim 1 , an arch angle of the arcuate portion is constant and is in the range of about 85° to about 115°.
10. The surgical suturing needle according to claim 1 , wherein an arch angle of the arcuate portion is approximately 100°.
11. The surgical suturing needle according to claim 1 , wherein the radius of the arcuate portion varies from its first end to its second end.
12. The surgical suturing needle according to claim 1 , wherein the radius of the arcuate portion increases from its second end to its first end.
13. The surgical suturing needle according to claim 1 , wherein an arch angle of the arcuate portion increases from about 85° at its second end to about 115° at its first end.
14. The surgical suturing needle according to claim 1 , wherein an arch angle of the arcuate portion increase from below 100° at its second end to over 100° at its first end.
15. A method of suturing a first tissue section having a wall and defining a first lumen with a second tissue section having a wall and defining a second lumen, the method includes the steps of:
providing a surgical needle, the surgical needle comprising an arcuate portion having a first end, a second end and a radius, a pointed tip disposed adjacent the first end of the arcuate portion, and a relatively straight shank disposed adjacent the second end of the arcuate portion, the shank and the arcuate portion forming a juncture angle therebetween, the juncture angle being defined by a longitudinal axis of the shank and a tangent of the second end of the arcuate portion, wherein an extrapolation of the longitudinal axis of the shank intersects the arcuate portion of the surgical needle up to about 0.100 inches from the pointed tip;
providing a needle holder;
grasping the shank of the surgical needle with the needle holder;
forcing the pointed tip of the surgical needle against the wall of the first tissue section and driving the pointed tip into the first lumen;
advancing the pointed tip of the surgical needle through the first lumen and into the second lumen;
advancing the pointed tip of the surgical needle through the wall of the second lumen;
removing the needle holder from the shank of the surgical needle;
grasping the pointed tip of the surgical needle with the need holder; and pulling the surgical needle substantially parallel to the wall of the second lumen until at least a portion of the arcuate portion is removed from the second lumen.