SURGICAL CANNULAS AND METHODS OF MANUFACTURING SURGICAL CANNULAS

摘要

A cannula includes a bowl portion with at least one depression in its outer surface, a tube portion, and a plurality of welds located at the at least one depression and joining the bowl portion to the tube portion. The plurality of welds may be discrete welds spaced from one another along a circumferential direction of the cannula. The weld joining a cannula bowl portion and a tube portion may be spaced from the distal end of the bowl portion. Various exemplary embodiments further contemplate methods of manufacturing a cannula by welding a tube portion and a bowl portion. Welding may occur, for example, in at least one depression of the bowl portion to form discrete welds spaced from one another along a circumferential direction of the cannula. In another example, welding may occur at a location spaced from and proximal to a distal end of the bowl portion.

主权项

1. A cannula, comprising:
a bowl portion comprising a distal section having at least one depression in an outer surface of the distal section; wherein the distal section of the bowl portion has a reduced wall thickness at a location of the at least one depression; a tube portion received by and extending from the distal section; and a plurality of welds located at the at least one depression and joining the bowl portion to the tube portion; wherein the plurality of welds are discrete welds spaced from one another along a circumferential direction of the cannula.