Laparoscopic scalpel and method for use
AssigneeDSign Surgical Innovations, LLC
InventorsFrank Dauterive Duperier, Michael Vollentine SEGER
Life of this patent
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Abstract
A laparoscopic scalpel includes a shaft and a recess disposed in a surface of the shaft proximal to a distal end of the shaft. A blade is attached to the shaft. The blade includes a cutting edge having a portion exposed by the recess and oriented outwardly from the recess. A proximal end of the portion of the cutting edge exposed by the recess is disposed further from the surface than is a distal end of the portion of the cutting edge exposed by the recess.
Claims20
A laparoscopic scalpel, comprising:
- a shaft having a proximal end, a distal end, and a length therebetween;
- a recess disposed in a surface of the shaft, the recess having a proximal end and a distal end along the length of the shaft wherein the distal end of the recess is disposed proximal to the distal end of the shaft;
- and
- a blade attached to the shaft, wherein the blade includes a cutting edge having a portion exposed by the recess and oriented outwardly from the recess, and wherein a proximal end of the portion of the cutting edge exposed by the recess is disposed further from a straight line between the distal and proximal ends of the recess than is a distal end of the portion of the cutting edge exposed by the recess.
A laparoscopic scalpel, comprising:
- a shaft;
- a recess having a proximal end and a distal end, the recess disposed in a surface of the shaft such that the distal end of the recess is disposed proximal to a distal end of the shaft, wherein a portion of the surface of the shaft is replaced by the recess;
- and
- a blade attached to the shaft, wherein the blade includes a cutting edge having a portion exposed by the recess and oriented outwardly from the recess, and wherein a proximal end of the portion of the cutting edge exposed by the recess is disposed further from a straight line between the distal and proximal ends of the recess than is a distal end of the portion of the cutting edge exposed by the recess;
- and
- a handle disposed on a proximal end of the shaft and extending from the shaft along a plane that is generally parallel to the cutting edge.
A method for using a laparoscopic scalpel including a shaft, a recess having a proximal end and a distal end, the recess disposed in a surface of the shaft such that the distal end of the recess is disposed proximal to a distal end of the shaft, and a blade attached to the shaft, wherein the blade includes a cutting edge having a portion exposed by the recess and oriented outwardly from the recess, and wherein a proximal end of the portion of the cutting edge exposed by the recess is disposed further from a straight line between the distal and proximal ends of the recess than is a distal end of the portion of the cutting edge exposed by the recess, and wherein the shaft is adapted to be inserted through a trocar into a patient, the method including the steps of:
- inserting the distal end of the shaft into a trocar disposed within a laparoscopic incision;
- translating the trocar proximally relative to the shaft to expose one or more of the peritoneum, dorsal fascia, muscle, ventral fascia, and subcutaneous tissue to the cutting edge while generally maintaining the patient's pneumoperitoneum;
- and
- cutting the one or more of the peritoneum, dorsal fascia, muscle, ventral fascia, and subcutaneous tissue with the cutting edge to enlarge the laparoscopic incision without compromise of the patient's pneumoperitoneum.
Dependencies are inferred from the claim text.