IP Library Granted Patent US 9,216,029
Granted Patent B1
US 9,216,029 · App. 14/835,509 · Granted Dec 22, 2015

Surgical forceps

Inventors: Ricardo G. Hahn (Ojai, CA); Afshin Nadershahi (Northridge, CA); Sudeep Deshpande (Newbury Park, CA)
Assignee: ALFRED E. MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIVERSITY OF SOUTHERN CALIFORNIA
A61B17/282A61F6/202A61F6/206
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Quick Facts
Patent No.
US 9,216,029
App. No.
14/835,509
Granted
Dec 22, 2015
Kind
B1
Abstract

This application presents a bifurcated, optimally-angled surgical forceps. In one example, this surgical forceps may enable a more natural maneuver for initial clamping of the vas deferens through the scrotal skin. This may be more comfortable for users and easier to maintain, and may provide greater tactile surface contact between the thumb and vas deferens. This device also may provide the surgeon with an entire segment of vas deferens upon which the vasectomy may be performed, thus reducing the need for frequent repositioning of instruments. The device may also be applied to other surgical procedures that may benefit from the features of the device and where a section of a tubular anatomical structure may need clamping at two points along its length. Examples include blood and lymphatic vessels, ducts of the digestive system, and large nerves or nerve bundles.

Claims (30)

1. A method for performing a vasectomy comprising:

pinching a vas deferens with fingers;

clamping the vas deferens at two locations with a surgical forceps comprising:

a first elongated arm and a second elongated arm;

a hinge, wherein the first elongated arm and the second elongated arm are pivoted at the hinge;

a first finger grip at the proximal end of the first elongated arm;

a second finger grip at the proximal end of the second elongated arm;

a ratcheting mechanism comprising a first ratchet on the first elongated arm adjacent to the first finger grip and a second ratchet on the second elongated arm adjacent to the second finger grip, wherein the first ratchet engages with the second ratchet as the finger grips are brought toward one another;

a first jaw at a distal end of the first elongated arm, wherein the first jaw is bifurcated to form a first branch and a second branch; and wherein the first branch further comprises a first tip at the distal end of the surgical forceps, and wherein the second branch further comprises a second tip at the distal end of the surgical forceps; and

a second jaw at a distal end of the second elongated arm, wherein the second jaw is bifurcated to form a third branch and a fourth branch,

wherein the third branch further comprises a third tip at the distal end of the surgical forceps,

wherein the fourth branch further comprises a fourth tip at the distal end of the surgical forceps, and

wherein, when the ratchets are engaged, the first tip and the third tip form a first curved enclosure, and the second tip and the fourth tip form a second curved enclosure; said vas deferens being clamped in said first and second curved enclosures; and

occluding the vas deferens.

2. A method for performing a vasectomy comprising:

pinching a vas deferens with fingers;

clamping the vas deferens at two locations with a surgical forceps comprising:

a first elongated arm and a second elongated arm;

a hinge, wherein the first elongated arm and the second elongated arm are pivoted at the hinge;

a first finger grip at the proximal end of the first elongated arm;

a second finger grip at the proximal end of the second elongated arm;

a ratcheting mechanism comprising a first ratchet on the first elongated arm adjacent to the first finger grip and a second ratchet on the second elongated arm adjacent to the second finger grip, wherein the first ratchet engages with the second ratchet as the finger grips are brought toward one another;

a first jaw at a distal end of the first elongated arm, wherein the first jaw is bifurcated to form a first branch and a second branch; and wherein the first branch further comprises a first tip at the distal end of the surgical forceps, and wherein the second branch further comprises a second tip at the distal end of the surgical forceps; and

a second jaw at a distal end of the second elongated arm, wherein the second jaw is bifurcated to form a third branch and a fourth branch,

wherein the third branch further comprises a third tip at the distal end of the surgical forceps,

wherein the fourth branch further comprises a fourth tip at the distal end of the surgical forceps,

wherein, when the ratchets are engaged, the first tip and the third tip form a first curved enclosure, and the second tip and the fourth tip form a second curved enclosure, said vas deferens being clamped in said first and second curved enclosures; and

wherein the first elongated arm, the second elongated arm, the hinge, or combinations thereof are bent at an angle;

separating the vas deferens from the surrounding tissue, and

flipping the surgical forceps prior to occluding the vas deferens.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 2, 2017
From: ALFRED E. MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIVERSITY OF SOUTHERN CALIFORNIA
To: PROA MEDICAL, INC.
Reel/Frame 042214/0451 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2015
From: HAHN, RICARDO G.; NADERSHAHI, AFSHIN; DESHPANDE, SUDEEP
To: ALFRED E. MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIVERSITY OF SOUTHERN CALIFORNIA
Reel/Frame 036938/0570 →
Continuity (2)
Division 13689499 · Nov 29, 2012
Provisional Application 61565628 · Dec 1, 2011