# US 10,765,413 B2 · Handle for microsurgical instruments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,765,413 B2 - Document ID: US10765413B2 - Status: Granted - Kind: B2 - Application number: 15/829,505 - Filed: 2017-12-01 - Published: 2018-06-07 - Granted: 2020-09-08 - Earliest claimed: 2016-12-21 - Applicants: Jeffrey I Lasner; Michael E Lasner - Inventors: Jeffrey I Lasner; Michael E Lasner - Web page: https://patentgrep.com/patent/US10765413B2 ## CPC - A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 17/06061: {Holders for needles or sutures, e.g. racks, stands (hand-held holding instruments A61B17/0483; holders for articles A61B50/20; racks for syringes or for hypodermic or infusion needles A61M5/008)} - A61B 17/062: Needle manipulators - A61B 17/30: Surgical pincettes, i.e. surgical tweezers {without pivotal connections (for holding suture needles or materials A61B17/0483)} - A61B 17/2833: {Locking means} - A61B 2017/00429: {with a roughened portion} - A61B 2017/2845: {with a spring pushing the handle back} - A61B 2017/2946: {Locking means} - A61B 2017/305: {Tweezer like handles with tubular extensions, inner slidable actuating members and distal tools, e.g. microsurgical instruments} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A surgical instrument made from flexibly resilient sheet metal has a handle formed into a sheet metal beam having a convex shape for improved strength. Raised uninterrupted arcuate protrusions on the outer surface of the handle of the instrument are provided to add additional strength and to provide improved grip retention when the surgical instrument is being used during surgical procedures. The improved handle is shown integrally as part of a needle holder capable of clamping surgical needles of varying diameters. ## Claims ### Claim 1 A handle for a surgical instrument, comprising, a pair of flexibly resilient sheet metal beams, each formed into a convex shape, having a plurality of arcuate protrusions projecting outward from the convex surface of said beams, said convex shape extending the full length of the longitudinal axis of each handle with said protrusions placed orthogonally with respect to a central longitudinal axis of the surgical instrument, said arcuate protrusions located on the apex of the convex shapes extending across about 45% of the convex surface width of each of said beams, said protrusions emerging from but not fully penetrating the material thickness of the convex beams. ### Claim 2 (depends on 1) The handle for the surgical instrument as described in claim 1 in which said protrusions have smooth outer surfaces so as not to catch, snag or negatively irnpinge upon adjacent surfaces. ### Claim 3 (depends on 2) The handle for the surgical instrument as described in claim 2 in which said protrusions, by nature of their shape and placement, are adapted to increase frictional finger pressure during use thereby preventing slippage of said instrument during a surgical procedure. ### Claim 4 (depends on 3) The handle for the surgical instrument as described in claim 3 in which said protrusions are raised arcuate shapes across the convex width of the handle which impart increased beam strength and contribute greater mechanical stiffness to the handle. ### Claim 5 (depends on 4) The handle for the surgical instrument as described in claim 4 in which the flexibly resilient sheet metal is medical grade stainless steel. ### Claim 6 A handle for a surgical instrument integrally connected to a pair of clamp parts made from flexibly resilient sheet metal, each clamp part extending longitudinally to a shank portion which extends to and is integral with a handle portion; each handle portion is formed into a beam of convex shape having a plurality of raised arcuate protrusions projecting outward from the convex surface of said beam, said protrusions placed orthogonally with respect to a central longitudinal axis of the handle portion, said arcuate protrusions located on the apex of the convex shape extending across about 45% of the convex surface width of said beam, said protrusions emerging from but not fully penetrating the material thickness of said convex beam; said clamp parts are pivotally connected by a mechanical fastener forming a clampable jaw which closes or opens responsive to pivotal movement of the handle portions toward and away from each other; said clampable jaw capable of holding a range of suturing needles of different diameters without incurring permanent deformation. ### Claim 7 (depends on 6) The handle for the surgical instrument as described in claim 6 in which interlocking leaf springs, fastened to one end of each handle portion, provide biasing means to keep the handles separated. ### Claim 8 (depends on 6) The handle for the surgical instrument as described in claim 6 in which the flexibly resilient sheet metal is medical grade stainless steel. ### Claim 9 A handle for a surgical instrument integrally connected to a pair of clamp parts made from flexibly resilient sheet metal, each clamp part extending longitudinally to a shank portion which extends to and is integral with a handle portion; each handle portion is formed into a beam of convex shape 130 mm long (5″) about 9 mm (0.355″) wide and 1.1 mm (0.043″) in thickness having a plurality of raised arcuate protrusions each about 0.77 mm (0.03″) high, spaced about 7.65 mm (0.30″) apart, each protrusion extending about 1.8 mm (0.07″) in the longitudinal direction of the handle portion, projecting outward from the convex surface of said beam, said protrusions placed orthogonally with respect to a central longitudinal axis of the handle portion, said arcuate protrusions located on the apex of the convex shape extending across about 45% of the convex surface width of said beam, said protrusions emerging from but not fully penetrating the material thickness of said convex beam; said clamp parts are pivotally connected by a mechanical fastener forming a clampable jaw which closes or opens responsive to pivotal movement of the handle portions toward and away from each other; said clampable jaw capable of holding a range of suturing needles of different diameters without incurring permanent deformation. ### Claim 10 (depends on 9) The handle for the surgical instrument as described in claim 9 in which interlocking leaf springs, fastened to one end of each handle portion, provide biasing means to keep the handles separated.