Trocar placement guide needle
OwnerDarius M. Ameriinventor
Life of this patent
Estimating the term…
Abstract
A trocar placement guide needle which reduces the need for trocar reinsertion attempts, by first ascertaining with the guide needle where a trocar should optimally be placed. In one embodiment, the guide needle is comprised of an elongate member including a proximal end and a sharp beveled distal tip for puncturing and cutting tissue, wherein the member includes an axial bore throughout the length of the member, a handle at the proximal end of the member, a means for indicating the depth to which the member has been inserted into the tissue, and a means for preventing unintended puncturing and cutting by the sharp beveled distal tip. Various embodiments are disclosed with different dimensions, means for precluding unintended puncturing or cutting, and depth indication means.
Claims12
A guide needle for improving trocar placement comprising:
- an elongate member including a proximal end and a sharp beveled distal tip for puncturing and cutting tissue, wherein the member includes an axial bore throughout the length of the member;
- a handle at the proximal end of the member;
- means for indicating the depth to which the member has been inserted into the tissue;
- and
- means for preventing unintended puncturing and cutting by the sharp beveled distal tip.
A method for minimizing trauma to a patient undergoing laparoscopic surgery, comprising the steps of:
- insufflating an anatomical target region;
- inserting a narrow width guide needle with a depth indicator into the target region;
- determining whether the insertion of the guide needle has resulted in optimal angular and depth positioning;
- if the insertion is not optimal, extracting and reinserting the guide needle until optimal positioning has been achieved, then noting the optimal depth and extracting the guide needle;
- and
- inserting a trocar in the precise position of guide needle insertion that was determined to be optimal.
Dependencies are inferred from the claim text.