Electromagnetic colpotomy cup system
AssigneeThe Medical College of Wisconsin, Inc.
InventorHadi Omar Saleh
Life of this patent
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Abstract
A colpotomy system includes a colpotomy cup, an electromagnet that is coupled to the colpotomy cup (thereby forming an electromagnetic colpotomy cup), and a bipolar electrocautery wand configured for use with the colpotomy cup and electromagnet. The electromagnet is used to generate an inwardly directed force, known as the Lorentz force, to direct the electrocautery wand towards the center of the colpotomy cup. This allows the physician to direct the wand towards the center of the uterine axis and away from the bladder as well as other surrounding structures in the pelvic cavity.
Claims22
A colpotomy system, comprising:
- a colpotomy cup having a top portion of a first diameter and a base portion of a second diameter that is smaller than the first diameter, wherein the base portion has a hole formed therein, wherein the hole circumscribes a longitudinal axis extending from the base portion to the top portion;
- and
- an electromagnet coupled to at least one of the top portion or the base portion of the colpotomy cup, wherein when a current passes through the electromagnet a magnetic field is generated along the longitudinal axis of the colpotomy cup thereby generating a Lorentz force directed inward towards the longitudinal axis.
A colpotomy kit, comprising:
- a colpotomy cup having a top portion of a first diameter and a base portion of a second diameter that is smaller than the first diameter, wherein the base portion has a hole formed therein, wherein the hole circumscribes a longitudinal axis extending from the base portion to the top portion;
- a solenoid coupled to at least one of the top portion or the base portion of the colpotomy cup;
- and
- a bipolar electrocautery wand having an electrical lead portion extending along a first direction and a cutting edge portion extending along a second direction that is perpendicular to the first direction;
- wherein when a current passes through the solenoid a magnetic field is generated along the longitudinal axis of the colpotomy cup thereby generating a Lorentz force directed inward towards the longitudinal axis of the colpotomy cup;
- and
- wherein when a current passes through the cutting edge portion of the electrocautery wand, the Lorentz force pushes the cutting edge portion of the electrocautery wand towards the longitudinal axis of the colpotomy cup.
Dependencies are inferred from the claim text.