# US 8,783,087 B2 · Surgical needle and method of manufacturing a surgical needle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,087 B2 - Document ID: US8783087B2 - Status: Granted - Kind: B2 - Application number: 13/419,495 - Filed: 2012-03-14 - Published: 2012-07-05 - Granted: 2014-07-22 - Earliest claimed: 2006-09-13 - Assignees: Aesculap AG - Applicants: Tobias Waeschle - Inventors: Tobias Waeschle - Web page: https://patentgrep.com/patent/US8783087B2 ## CPC - A61B 17/06066: {Needles, e.g. needle tip configurations} - B21G 1/006: {Special treatments of pins or needles, e.g. annealing, straightening} - B22F 3/225: {by injection molding} - B22F 5/12: of wires {(of tubes B22F5/10)} - A61B 2017/00345: {Micromachines, nanomachines, microsystems} - A61B 2017/00433: {knurled} - A61B 2017/00526: {Methods of manufacturing} - A61B 2017/00849: {with respect to tissue, e.g. hollow organs} - B22F 2003/242: {Coating} - B22F 2003/245: {Making recesses, grooves etc on the surface by removing material} - B22F 2998/10: Processes characterised by the sequence of their steps - B29C 45/00: Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor (injection blow-moulding B29C49/06) - B29L 2031/7546: {Surgical equipment} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - B21G: MAKING NEEDLES, PINS OR NAILS OF METAL - B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract In order to develop a surgical needle comprising an elongate needle body and a needle point formed on a distal end of the needle body, wherein the needle body is manufactured in particular from an elongate cylindrical blank, in a way that improves the handling ability of the surgical needle, it is proposed that the needle body has at least one textured-profile lateral face, which comprises at least one textured-profile lateral-face region provided with a textured profile, wherein the textured profile comprises a plurality of indentations and wherein the at least one textured-profile lateral-face region extends as far as the needle point. An improved method of manufacturing a surgical needle is also provided. ## Claims ### Claim 1 Method of manufacturing a surgical needle, comprising: manufacturing an elongate needle body from an elongate cylindrical blank, providing the needle body with at least one textured-profile lateral face, forming at least one textured-profile lateral face region of the at least one textured-profile lateral-face by embossing a textured profile on at least a portion of the at least one textured profile lateral face, the embossed textured profile comprising a plurality of well-defined, reproducible indentations, and forming a needle point at a distal end of the needle body, the at least one textured-profile lateral-face region extending as far as the needle point, wherein: the embossing of the textured profile occurs during a stamping process performed on the needle body; and the needle point is formed by electrochemical polishing of the distal end of the stamped needle body. ### Claim 2 (depends on 1) Method according to claim 1, wherein the at least one textured-profile lateral-face region is designed in such a way that it forms at least half of the at least one textured-profile lateral face. ### Claim 3 (depends on 1) Method according to claim 1, wherein the needle body is provided with two textured-profile lateral faces such that the two textured-profile lateral faces face in opposite directions away from one another. ### Claim 4 (depends on 1) Method according to claim 1, wherein the needle body is designed in such a way that in cross section it has a rectangular or square or substantially rectangular or square shape. ### Claim 5 (depends on 1) Method according to claim 1, wherein the needle body is designed in such a way that it has four flat or substantially flat lateral faces and that at least one of the lateral faces is a textured-profile lateral face. ### Claim 6 (depends on 1) Method according to claim 1, wherein the needle body is designed in such a way that it has at least one non-profiled lateral face adjoining the at least one textured-profile lateral face. ### Claim 7 (depends on 6) Method according to claim 6, wherein the at least one non-profiled lateral face is designed with a convex curvature in a direction away from the needle body. ### Claim 8 (depends on 6) Method according to claim 6, wherein two non-profiled or substantially non-profiled lateral faces are formed. ### Claim 9 (depends on 8) Method according to claim 8, wherein the two non-profiled or substantially non-profiled lateral faces are designed facing in opposite directions away from one another. ### Claim 10 (depends on 6) Method according to claim 6, wherein the needle body is designed in such a way that it has two textured-profile lateral faces and two non-profiled or substantially non-profiled lateral faces, which connect the textured-profile lateral faces to one another. ### Claim 11 (depends on 1) Method according to claim 1, wherein the needle body after the formation of the at least one textured-profile lateral-face region is bent. ### Claim 12 (depends on 1) Method according to claim 1, wherein the at least one textured-profile lateral face defines an outer surface and that the plurality of indentations are formed from the outer surface into the needle body. ### Claim 13 (depends on 12) Method according to claim 12, wherein a depth of the indentations relative to the outer surface of the at least one textured-profile lateral face is designed to decrease from a proximal end of the at least one textured-profile lateral-face region in the direction of the needle point. ### Claim 14 (depends on 1) Method according to claim 1, wherein the plurality of indentations are entirely or partially of a pyramidal design. ### Claim 15 (depends on 14) Method according to claim 14, wherein the plurality of indentations are designed entirely or partially in the form of square pyramids. ### Claim 16 (depends on 1) Method according to claim 1, wherein the elongate cylindrical blank is manufactured by injection moulding. ### Claim 17 (depends on 16) Method according to claim 16, wherein the elongate cylindrical blank is manufactured by metal injection moulding (MIM), powder injection moulding (PIM) or by plastic injection moulding. ### Claim 18 (depends on 1) Method according to claim 1, wherein the needle is manufactured from a metal, from plastics material or in the form of a ceramic product by sintering. ### Claim 19 (depends on 1) Method according to claim 1, wherein the needle at a proximal end is provided with at least one eye, blind hole or notch. ### Claim 20 (depends on 19) Method according to claim 19, wherein the eye is designed in the form of a through opening in the needle body that is circular, oval or elongate-hole-like in cross section. ### Claim 21 (depends on 1) Method according to claim 1, wherein the needle point and/or the entire needle body is entirely or partially coated with a silicone layer.