Processes Patents (Class 163/5)
  • Patent number: 10870223
    Abstract: A method of manufacturing a needle-like array sheet includes supplying a first needle-like array-forming solution consisting of an aqueous solution on a first mold having a first recess; interrupting drying in a wet state and forming a needle-like distal end part; supplying a second needle-like array-forming solution consisting of an aqueous solution on a second mold having a second recess; peeling a sheet part molding product, which is dried and solidified and has a protrusion corresponding to the second recess, after the sheet part molding product is formed; inserting the protrusion of the sheet part molding product into the first recess of the first mold; drying and solidifying the needle-like distal end part and the sheet part molding product after inserting the protrusion, bonding the needle-like distal end part and the protrusion of the sheet part molding product together, and forming a needle-like array sheet having the needle-like array.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: December 22, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shotaro Ogawa, Keio Okano
  • Patent number: 9848865
    Abstract: A suture thread is used to perform suturing without tying part of or the whole of knots that are supposed to be tied during suturing. A suture thread support body prevents an end of the suture thread from being pulled into a suturing site. A needle accommodation body has a shape of a tube having a through-hole through both ends. The suture thread has the suture thread support body and the needle accommodation body.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: December 26, 2017
    Assignee: Y.Jacobs Medical Inc.
    Inventor: Young Jae Kim
  • Patent number: 9457412
    Abstract: Tungsten carbide drill bits for removing material from alloys and other hard materials are disclosed. A conventional drill bit is modified by removing material from the forward portion of the bit to increase the radius of the cutting edge. The drill bit is then coated with a nanostructured diamond film using a chemical vapor deposition process.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: October 4, 2016
    Assignee: The Board of Trustees of the University of Alabama for and on behalf of the University of Alabama
    Inventors: Yuag-Shan Kevin Chou, Raymond G. Thompson
  • Patent number: 8778102
    Abstract: A method of stress relieving drilled surgical needles is disclosed. At least the metal about a drilled bore hole is heat treated to relieve stress without annealing.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: July 15, 2014
    Assignee: Ethicon, Inc.
    Inventor: Robert E. Maurer
  • Publication number: 20140166225
    Abstract: A pipe element tube 23 is manufactured by a manufacturing method including step S1-1 for obtaining the pipe element tube 23 by rolling a stainless steel plate material 21 and welding an abutting portion, a core drawing step S1-2 for reducing a diameter and adjusting a thickness of the pipe element tube 23 by using a cored bar 24, and a tube drawing step S1-3 for reducing the diameter and adjusting an outer form of the pipe element tube 23 without using a cored bar. By adjusting repetition times of the core drawing step S1-2 and the tube drawing step S1-3, a uniform concavity and convexity are provided on an inner circumferential surface of the pipe element tube 23. Then a pipe 12 having an annular shaped cross section obtained by cutting the pipe element tube 23 and a linear material 11 having a circular cross section are joined (S2).
    Type: Application
    Filed: August 2, 2012
    Publication date: June 19, 2014
    Applicants: KABUSHIKI KAISHA IKEN KOUGYO
    Inventors: Yokichi Nakayama, Shinichiro Nakayama
  • Publication number: 20140103065
    Abstract: Method and apparatus for beverage extraction needle side holes or apertures. The leading and trailing edges of the apertures may be shaped or otherwise configured to help reduce the possibility of coring or shearing of material as the needle is inserted into and/or withdrawn from material, such as a cork. Convex leading and/or trailing edges may help deflect material away from the aperture, reducing shearing. Concave leading and/or trailing edges may help prevent entry of material into the aperture, again reducing shearing.
    Type: Application
    Filed: March 11, 2013
    Publication date: April 17, 2014
    Applicant: Coravin, LLC
    Inventors: Gregory Lambrecht, Sean Kavanaugh, Nicholas G. Lazaris, Otto Deruntz, Adam Brierley Craft, Mike Rider
  • Patent number: 8671543
    Abstract: In a process for producing a microneedle (12) that can be inserted into body tissue in which a needle tip (20) and a preferably capillary collecting channel (14) having a distal inlet for body fluid formed at the needle tip (20) are formed, it is provided that at least part of a preform (38) prefabricated from a flat material is shaped into a tubular structure (22) so that the collecting channel (14) is at least substantially annularly closed in the cross-section in the area of the tubular structure (22).
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 18, 2014
    Assignee: Roche Diagnostics Operations, Inc.
    Inventor: Hans-Peter Haar
  • Publication number: 20130237958
    Abstract: A needle apparatus and a method of implementing a needle apparatus are disclosed. The needle apparatus includes a hollow tube component including, at a first end of the hollow tube component, a pointed portion configured for piercing tissue of a patient and a needle hub disposed at a second end of the hollow tube component. The hollow tube component includes a bend disposed therein. The bend is positioned between the first and second ends of the hollow tube component. The needle apparatus also includes a stylet removably positioned in the hollow tube component. The stylet is characterized by a proximal end and a distal end. The stylet includes a stylet hub coupled to the distal end. At least a portion of the proximal end of the stylet includes a first diameter that is smaller than a second diameter of at least a portion of the distal end of the stylet.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 12, 2013
    Inventor: Anthony C. ARRIGO
  • Publication number: 20130055939
    Abstract: A needle having a shaft member and an eye member that is rotatable relative to the shaft member. The needle addresses the problem of a thread becoming twisted during use. The rotatable coupling between the shaft and eye member preferably has a surface profile that does not substantially alter the outer surface profile of the needle, thereby minimizing any affect on the normal use of the needle.
    Type: Application
    Filed: April 6, 2012
    Publication date: March 7, 2013
    Inventor: MARINA FRENCH
  • Patent number: 8214996
    Abstract: In a method of attaching a suture to a needle barrel, a first compression stroke compresses the radially-defined top of the barrel against a suture in the bore of the barrel while restraining the bottom and sides of the barrel against deformation. A second compression stroke compresses the bottom of the barrel against the suture while restraining the sides against deformation. In another method, the top and bottom are compressed concurrently while the sides are restrained against deformation. An apparatus for attaching a suture to a needle barrel includes two die sets, each including a die with a groove therein. In one die set, the groove protects the bottom and sides of the barrel from deformation while the top is compressed. In the other die set, the groove protects the sides of the barrel from deformation while the bottom is compressed.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: July 10, 2012
    Assignee: Ethicon, Inc.
    Inventors: Jerry Stametz, John Price, Eugene Reynolds, Kenneth Barsch
  • Publication number: 20120168107
    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.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Applicant: Aesculap AG
    Inventor: Tobias Waeschle
  • Publication number: 20110315334
    Abstract: There is provided a hole opening device and a hold opening method for an eyeless needle capable of accurately aligning the center of a needle material and the optical axis of a laser beam as well as opening a hole precisely even with a thin needle material. A plurality of needle materials 1 are arranged in a row and mounted on a table 21, base ends of several needle materials 1 are photographed by a camera 25, a needle material 1 to be processed is located from the photographed image, and the center location of the needle material is calculated. The optical axis of a laser of a laser oscillator and center location of a base end of the needle material 1 to be processed are matched, and a hole 1c of a predetermined depth is opened by the laser.
    Type: Application
    Filed: September 28, 2009
    Publication date: December 29, 2011
    Inventors: Kazuaki Katoh, Kanji Matsutani
  • Publication number: 20110218445
    Abstract: Needles equipped with fibres allow tissue inspection based on optical spectroscopy to diagnose whether tissue is cancerous or not. This requires integration of optical fibers into needles. The problem is how to manufacture the needle having at least one fiber exit at the distal end of the needle, where the fiber does not obstruct the hollow part of the needle if present as well as does not extend beyond the outer cylinder geometry. To solve this problem we propose to manufacture the needle consisting of four parts: an inner cylinder tube, an outer hollow cylinder tube, a needle tip part with integrated fiber exit and a holder part, wherein the hollow spacing between the inner and the outer cylinder is larger or equal to the outer diameter of the fibers, the inner and the outer cylinder are mounted in the holder part and where the tip part is mounted on the two cylinders.
    Type: Application
    Filed: June 15, 2009
    Publication date: September 8, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Augustinus Laurentius Braun, Bernardus Hendrikus Wilhelmus Hendriks, Rik Harbers, Marjolein Van Der Voort, Adrien Emmanuel Desjardins, Rami Nachabe, Bernardus Wilhelmus Johannes Wassink, Franciscus Marinus Antonius Maria Van Gaal, Nenad Mihajlovic, Drazenko Babic
  • Publication number: 20110192562
    Abstract: Microneedle sheets are produced by injecting a needle raw material into a stamper formed with a concavity in a base material. However, because the stamper concavity is very small, there is the problem that air cannot escape due to air and surface tension of the material, thereby preventing a needle from being formed in part. The present invention provides a stamper for producing a microneedle sheet. The stamper comprises a sheet-like base material including a conical concavity formed from a first surface of the sheet-like base material toward a second surface thereof; and a through-hole formed from a bottom of the concavity toward the second surface. Air can escape via this through-hole, allowing a microneedle sheet which is filled with a needle raw material as far as the bottom of the concavity to be obtained.
    Type: Application
    Filed: January 15, 2010
    Publication date: August 11, 2011
    Applicant: BIOSERENTACH CO., LTD.
    Inventors: Masashi Motoi, Kenshin Honda, Toyoharu Terada, Tatsuya Okada, Yoshitomo Satouchi, Kanji Takada
  • Patent number: 7937981
    Abstract: A method of mechanically treating alloy metal surgical needles to improve bending strength is disclosed. The needles are curved and reverse-curved in this method to improve bending strength.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: May 10, 2011
    Assignee: Ethicon, Inc.
    Inventors: Eugene D. Reynolds, Robert Maurer, Michael Nordmeyer, Frank R. Cichocki, Lester E. Schaible, Daniel J. Smith
  • Publication number: 20100139883
    Abstract: In a method of attaching a suture to a needle barrel, a first compression stroke compresses the radially-defined top of the barrel against a suture in the bore of the barrel while restraining the bottom and sides of the barrel against deformation. A second compression stroke compresses the bottom of the barrel against the suture while restraining the sides against deformation. In another method, the top and bottom are compressed concurrently while the sides are restrained against deformation. An apparatus for attaching a suture to a needle barrel includes two die sets, each including a die with a groove therein. In one die set, the groove protects the bottom and sides of the barrel from deformation while the top is compressed. In the other die set, the groove protects the sides of the barrel from deformation while the bottom is compressed.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Inventors: Jerry Stametz, John Price, Eugene Reynolds, Kenneth Barsh
  • Patent number: 7634933
    Abstract: A process for manufacturing a surgical needle incorporates at least one pressing operation which, preferably, in conjunction with a trimming and/or etching process, ultimately forms the sharpened needle end. The grinding operation in the preferred process does not produce the primary sharpened edges of the needle, but, rather is incorporated, in one instance, to reduce excess needle material prior to the pressing operation. Consequently, the amount of flash material generated during pressing is substantially reduced. This feature desirably enhances the subsequent trimming and etching operations, and produces a needle which is extremely sharp, durable and exhibits an improved retention of sharpness over periods of prolonged use.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: December 22, 2009
    Assignee: Tyco Healthcare Group LP
    Inventor: Michael W. Bogart
  • Publication number: 20090312720
    Abstract: A method of stress relieving drilled surgical needles is disclosed. At least the metal about a drilled bore hole is heat treated to relieve stress without annealing.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Inventor: Robert E. Maurer
  • Patent number: 7415858
    Abstract: Surgical needles are produced by immersing a needle possessing a distal end surrounded at least in part by flash material and a body portion in an acid bath according to a predetermined sequence, wherein the distal end of the needle is exposed to the acid bath under conditions sufficient to remove flash material from the distal end of the needle and the body portion of the needle is exposed to the acid bath under conditions sufficient to provide a matte finish on at least a portion of the body portion of the needle.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: August 26, 2008
    Assignee: Tyco Healthcare Group LP
    Inventors: Michael W. Bogart, Andrew J. Vacco
  • Patent number: 7356900
    Abstract: In a manipulator needle portion defect repairing method, the existence of an abrasion or a fracture in a needle portion for holding a sample at an end of a manipulator disposed in an FIB device is confirmed using a microscope function of the FIB device. The abrasion or the fracture in the needle portion is then repaired by chemical vapor deposition using a focused ion beam of the FIB device.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: April 15, 2008
    Assignee: SII NanoTechnology Inc.
    Inventor: Masanao Munekane
  • Patent number: 7353683
    Abstract: A process for manufacturing a surgical needle incorporates at least one pressing operation which, preferably, in conjunction with a trimming and/or etching process, ultimately forms the sharpened needle end. The grinding operation in the preferred process does not produce the primary sharpened edges of the needle, but, rather is incorporated, in one instance, to reduce excess needle material prior to the pressing operation. Consequently, the amount of flash material generated during pressing is substantially reduced. This feature desirably enhances the subsequent trimming and etching operations, and produces a needle which is extremely sharp, durable and exhibits an improved retention of sharpness over periods of prolonged use.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: April 8, 2008
    Assignee: Tyco Healthcare Group LP
    Inventor: Michael W. Bogart
  • Patent number: 7185524
    Abstract: A method for manufacturing a surgical needle devoid of a grinding process includes the steps of swaging a needle blank to define a substantially tapered or conical needle end, pressing the tapered needle to form a plurality of intersecting surfaces and forming cutting edges along the lines of intersection of the intersecting sides. The needle may be subjected to an etching process (e.g., an acid bath) to sharpen the cutting edges and/or provide a matte finish on the needle. The needle produced by the novel process is extremely sharp and durable, and exhibits an enhanced retention of sharpness relative to conventional ground needles over periods of prolonged use.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: March 6, 2007
    Assignee: Tyco Healthcare Group LP
    Inventor: Michael W. Bogart
  • Patent number: 7185411
    Abstract: An apparatus for forming armed sutures has a swaging station for receiving, holding and swaging needles that are deposited therein. A linear motor drives a suture insertion gripper, which pulls suture from a supply reel and inserts a cut end thereof into a needle held in the swaging station. A ganged needle transfer assembly with a plurality of spaced needle gripper units carries needles along a line substantially at right angles to the suture line and transfers them to and from the swaging station and other needle processing stations. A precisor orients needles prior to placement in the swaging station and a pull test assembly tests armed sutures in both destructive and non-destructive modes. Both ends of the production line may be automated, e.g., by robots which load and offload needles prior to and after swaging, respectively. The apparatus is capable of forming double armed sutures by using a rotatable mount for the suture insertion gripper and a secondary, loop gripper.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: March 6, 2007
    Assignee: Ethicon, Inc.
    Inventors: Timothy P. Lenihan, Demarest D. David
  • Patent number: 6517523
    Abstract: A tip portion of a needle main body having an edge point includes a first slant surface slanted at 10-18 degrees with respect to the axis of the needle main body, a pair of second slant surfaces slanted at 16-23 degrees, and a pair of third slant surfaces slanted at 19-27 degrees. The ratios of the lengths of the first, second, and third slant surfaces are set to be 40-50%, 5-15%, and 35-55%. At the time of forming the second slant surfaces and the third slant surfaces, a grinding wheel or the needle main body is turned relative to the other in a horizontal plane so that the direction of axis of the grinding wheel and the direction of axis of the needle main body are in a twisted or distorted relationship from a substantially orthogonal relationship such that the radial outer sides of the second and the third slant surfaces are included downwardly.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: February 11, 2003
    Assignee: Kaneko Kogyo Inc.
    Inventors: Yukio Kaneko, Takeyoshi Sakashita
  • Patent number: 6497994
    Abstract: A method and an apparatus is disclosed for forming a one-piece introducer needle having a member portion and a needle portion by introducing a photoresist on a substrate. The temperature of the substrate is increased and then decreased. A photomask is deposited onto a substrate.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: December 24, 2002
    Assignee: Ethicon, Inc.
    Inventor: Adel Kafrawy
  • Patent number: 6163948
    Abstract: A semi-automated machine and method for singulating individual surgical needles from an bulk supply and attaching a suture to the surgical needle is described. Each of the surgical needles has a suture receiving opening formed therein for receiving a suture. The machine includes a singulation station having a sliding surface that assists an operator in singulating needles and depositing them in a pair of drop locations for subsequent automatic handling. Indexing conveyors, an articulated robot and a precision conveyor are used with a precise positioning station for orienting each needle for automatic handling. A universal gripper mounted on a rotary indexing device automatically receives each individual needle in a predetermined orientation and conveys the needle for sequential processing from station to station to form the needle-suture assembly.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: December 26, 2000
    Assignee: Ethicon, Inc.
    Inventors: Anthony Esteves, John F. Blanch, Robert A. Daniele, David D. Demarest
  • Patent number: 6009933
    Abstract: A hypodermic needle featuring a multi-beveled point geometry is disclosed. In one embodiment, the multi-beveled point features a primary bevel, a pair of tip bevels, and a pair of middle bevels each intermediate the primary bevel and a respective one of the tip bevels. The primary and middle bevels are provided at angles of inclination, measured between the central axis and a reference plane that are substantially identical. The tip bevels are formed at an angle of inclination respective to the central axis which is not equal to the angle of inclination at which the primary and middle bevels are formed. The resulting five-beveled point geometry contributes to a more continuous bevel face free of abrupt intercepts or transitions between the respective bevel faces, lessening the penetration force required to urge the needle point through skin, flesh, or other material.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: January 4, 2000
    Assignee: Becton Dickinson and Company
    Inventors: Judith L. Doyle, Steven L. Koziol
  • Patent number: 5943759
    Abstract: This invention relates to a method for manufacturing a needle attached suture and an apparatus therefor. A needle attached suture is obtained by inserting a suture into an insertion hole formed in the end of a needle N which is held by a needle retaining unit 16 and by swaging the end of the needle with the suture. The method and the apparatus have been developed to accurately position the end of the needle for swaging with the suture to stabilize the swaging strength between the suture and the needle. Before the swaging, the needle is held by the needle retaining unit 16, and the end of the needle N is pushed to a certain position by a rod 99 or its equivalent. Thereby, the end of the needle N relative to the needle retaining unit 16 is accurately positioned.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 31, 1999
    Assignee: Kabushiki Kaisha Azwell (Azwell Inc.)
    Inventors: Kenji Shikakubo, Satoshi Omuraya, Gennai Yanagisawa
  • Patent number: 5941899
    Abstract: Channel-bodied surgical needles and surgical incision members are disclosed having a generally U-shaped cross-sectional body portion and a penetrating tip portion formed on at least one end thereof. Preferably, penetrating tip portions are formed at both ends of the channel-bodied portion. The surgical needle and/or surgical incision member may additionally includes apparatus engagement structure formed adjacent either end of the body portion and engagable with a suitable surgical suturing apparatus. The channel-bodied surgical needle and/or surgical incision member may additionally include securement structure for attachment of a length of suture material thereto. There is also disclosed apparatus for forming a channel-shaped body portion and the suture attachment structure. Additionally, methods for suturing tissue sections, particularly vascular tissue sections, with the channel-bodied surgical needle and the channel-bodied surgical incision members, are disclosed.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: August 24, 1999
    Assignee: United States Surgical Corporation
    Inventors: Richard N. Granger, Charles R. Sherts
  • Patent number: 5928268
    Abstract: A curved surgical needle and a method for producing the same from a solid sheet of material rather than from coiled wire including the steps of drilling a bore in one edge of the material, grinding an edge opposite the drilled edge to form a sharpened point, curving the material and cutting the material at a point of equal distance between each drilled bored to provide a surgical needle. A suture is then attached to the surgical needle, optionally lubricated, sterilized, and packaged by suitable means known in the art.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: July 27, 1999
    Assignee: Tyco Group S.a.r.l.
    Inventors: Richard A. Butwell, Robert A. Hlavacek, Carl Monti
  • Patent number: 5902320
    Abstract: The present invention provides a surgical needle having a needle tip end and a clamping portion to be clamped by a needle holder for applying a current, whereinthe needle tip end is made from a conductive material which is electrically connected to a conductive material of the clamping portion,an insulating layer is provided over the clamping portion and a tip surrounding portion of the surgical needle, whereas at least the needle tip end is electrically exposed, andwhen the insulating material over the clamping portion is clamped by the needle holder, the conductive material of the clamping portion is electrically connected to the needle holder.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: May 11, 1999
    Assignee: Mani, Inc.
    Inventors: Kanji Matsutani, Masatoshi Fukuda, Katsutoshi Sato, Akira Saito
  • Patent number: 5853423
    Abstract: A process for the manufacture of suture needles and, more particularly, a process for enhancing the physical strength of the suture needles through an expedient cold-working or cold-forming procedure. Also disclosed is the provision of a novel and physically strengthened suture needle, particularly a surgical suture needle possessing a curvilinear configuration wherein the cross-sectional configuration of the needle is cold-formed into varying shapes in order to produce a needle having superior physical characteristics and strengths imparted thereto through the inventive process.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: December 29, 1998
    Assignee: Ethicon, Inc.
    Inventors: Walter McGregor, Semyon Shchervinsky
  • Patent number: 5814166
    Abstract: A continuous process for heat treating and cleaning and tempering martensitic stainless steel surgical needles is disclosed. The method comprises exposing the surgical needles to a partial vacuum at a temperature less than the heat treating temperature to remove volatile surface contaminant. Then the needles are heat treated in an argon gas environment at a pressure equal to or greater than 1.0 Torr. Next the temperature of the oven is lowered to temper the needles.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 29, 1998
    Assignee: Ethicon, Inc.
    Inventors: Douglas Warren Ackerman, Timothy Sardelis, William McJames
  • Patent number: 5776268
    Abstract: A process for progressively manufacturing cutting edge needles or wire members. Needle blanks or wire blanks are cut from a roll of wire and mounted to a carrier strip. The carrier strip and needles are moved through a succession of coining dies and at least one trimming die, wherein the first coining die is an open coining die and the one or more successive coining dies are closed coining dies. The needle blanks or wire members are optionally curved, heat treated and electrochemically treated resulting in cutting edge needles or wire members formed without a grinding step and without adversely affecting point ductility.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: July 7, 1998
    Assignee: Ethicon, Inc.
    Inventors: William McJames, Bernard M. Willis, Daniel Smith, Eugene Reynolds, Carl Gucker, Michael Nordmeyer
  • Patent number: 5749897
    Abstract: A surgical needle has a top edge formed by two pressed faces located inside or outside of curvature from pressing a material blank made of austenitic stainless steel having fibrous texture and cutting edges formed on both sides of a base. The top edge is sharp at a needle point and the sharp needle point is constituted of fibrous texture formed at the surface layer of the material blank. Grinding marks extending crosswise formed on the face of the mold are transferred to the pressed faces. A mold constitutes plural faces forming projecting angles (angle between two intersecting faces is 180.degree. or below, and the line at which the two faces intersect is made as a projecting line) along edges of the blocks made of two rectangular prisms, and constitutes a cavity by suitably contacting the edges of the blocks.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: May 12, 1998
    Assignees: Kabushiki Kaisha, Matsutani Seisakusho
    Inventors: Kanji Matsutani, Motoichi Sugino, Hiroshi Yagisawa
  • Patent number: 5683416
    Abstract: A taper point surgical needle having improved needle point strength is disclosed. In one embodiment of the needle, a tip portion includes first and second integral tapered regions having first and second cross-sectional areas respectively which decrease progressively toward the tip of the needle in accordance with first and second angles of inclination respectively, with the first angle being greater than the second angle. In another embodiment of the needle of the present invention, the tip portion includes a third tapered region integral with the second tapered region and having a cross-sectional area which decreases progressively toward the needle tip in accordance with a third angle of inclination which is smaller than the second angle.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: November 4, 1997
    Assignee: Ethicon, Inc.
    Inventors: Walter McGregor, William Schaeffer, Semyon Shchervinsky
  • Patent number: 5682940
    Abstract: There is disclosed an apparatus for forming curved and rectangular bodied needle blanks from a length of needle stock which includes a generally cylindrical inner mandrel having a plurality of longitudinal channels formed in an outer surface thereof, the mandrel being dimensioned and configured for insertion within the length of needle stock. The apparatus also includes a plurality of broaches insertable into the longitudinal channels such that an edge of each broach projects radially outwardly of the mandrel to form a plurality of inner grooves on an inner surface of the length of needle stock.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: November 4, 1997
    Assignee: United States Surgical Corporation
    Inventors: Thomas D. Guy, Terry C. Eisensmith, Donald A. Morin
  • Patent number: 5676008
    Abstract: There is disclosed an apparatus and method for forming curved and pointed needle blanks from a coiled length of wire needle stock material. The apparatus includes an inner mandrel having a circumferential wire receiving groove and at least one longitudinally extending broach receiving channel formed in the outer surface. The apparatus also includes an outer member having an inner surface defining a bore sized to receive the inner mandrel wrapped with wire needle stock. The outer member includes at least one longitudinal broach receiving channel formed in the outer member inner surface. The outer mandrel further includes a circumferential wire receiving groove formed in the inner surface such that, when wrapped with the length of wire needle stock material, the inner mandrel is threaded into the outer member. The apparatus further includes at least one broach which is movable within the channels to cut the length of wire needle stock into curved and pointed needle blanks.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: October 14, 1997
    Assignee: United States Surgical Corporation
    Inventor: Donald A. Morin
  • Patent number: 5640874
    Abstract: There is disclosed an apparatus and a method for progressively forming high strength surgical needles from bulk needle stock material. The apparatus generally includes a series of progressive needle processing stations. A first series of needle processing stations removes material from needle stock material to rough form needle blanks attached to a carrier strip while a second series of processing stations refine the rough formed needle blanks attached to the strip into the desired surgical needles. The disclosed method generally includes the steps of gutting needle stock material to rough form needle blanks attached to a carrier strip and progressively coining the rough formed blanks into surgical needles. Finally, there is disclosed a high bend strength surgical needle formed on the disclosed apparatus or by the disclosed method. Preferably, the surgical needle is a surgical incision member having a predetermined radius of curvature and an optimized conical radius at the tips.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: June 24, 1997
    Assignee: United States Surgical Corporation
    Inventor: Russell J. Vecsey
  • Patent number: 5630268
    Abstract: A process for manufacturing surgical needles from solid, cylindrical needle blanks. A plurality of needle blanks are cut from a roll of wire and mounted to a flat carrier strip. The carrier strip then indexes each needle blank to a grinding station where an orbital grinding means grinds the distal end of each needle blank into a taper point while the needle blanks are held fixed in the carrier strip.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Ethicon, Inc.
    Inventors: Daniel Smith, Bernard M. Willis, Kenneth P. Marschke, Jr., Barry Littlewood, Vulgens Schoen, Carl Gucker, Michael Nordmeyer, Thaddeus Miklewicz
  • Patent number: 5626043
    Abstract: An apparatus for forming at least one curved, rectangular bodied surgical needle which comprises frame means, flat press means associated with said frame means for imparting first flat surfaces to opposite sides of at least a portion of at least one needle blank, curving means associated with said frame means for imparting an arcuate profile to at least a portion of the at least one needle blank and side press means mounted on said frame portion for imparting second flat surfaces to opposite sides of the needle blank, wherein said second flat surfaces are imparted substantially perpendicular to said first flat surfaces.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: May 6, 1997
    Assignee: United States Surgical Corporation
    Inventors: Michael W. Bogart, Richard J. Smith
  • Patent number: 5613391
    Abstract: A machine and method for knurling an end portion of a cylindrical workpiece including a hypodermic needle or biopsy needle. The machine includes a base to which a reciprocating mechanism and a serrated block are attached. A pressure bar is positioned above the base and has a second serrated block attached thereto. The pressure bar is reciprocated back and forth, each movement comprising a stroke. A pair of lobes are attached to the top surface of the pressure bar. A pair of roller blocks are also attached to the base, each roller block having a rectangular opening and a roller located therein. The pressure bar passes through the rectangular openings. As the pressure bar is reciprocated back and forth and the lobes come into contact with the rollers, the pressure bar is biased toward the base whereby a knurl is formed in a workpiece placed between the two serrated blocks. A method for knurling an end portion of a cylindrical workpiece is also disclosed.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: March 25, 1997
    Inventor: Stanley M. Loncar
  • Patent number: 5608962
    Abstract: A method and apparatus for attaching sutures to curved surgical needles. A vibratory bowl and vibratory rail function to present individual surgical needles to a transfer system in a predetermined orientation. The transfer system then delivers each oriented needle to a frame which positions the needle for subsequent swaging by a rotating die system which selectively impacts the needle to secure the suture thereto.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: March 11, 1997
    Assignee: United States Surgical Corporation
    Inventors: Francis D. Colligan, Donald C. Ross
  • Patent number: 5553477
    Abstract: There is disclosed an apparatus for forming a surgical incision member comprising which includes a first die associated with a base and having a first groove therein for receipt of at least a portion of a needle blank. A second die is mounted for movement on the base between a position remote from the first die and a position adjacent the first die. The second die includes a second groove alignable with the first groove to hold a needle blank therebetween, the first and second dies each having spaced apart channels intersecting the first and second grooves. A notching die is provided and is mounted for movement within at the channels so as to engage and notch an edge of the needle blank contained within the first and second grooves. The apparatus also includes structure for curving a needle blank contained within the first and second grooves. A method of forming a surgical incision member is also disclosed, and a surgical incision member blank.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: September 10, 1996
    Assignee: United States Surgical Corporation
    Inventors: Terry C. Eisensmith, Donald A. Morin, George R. Proto
  • Patent number: 5549629
    Abstract: This invention provides for a novel retractable, telescoping, surgical needle cover and a collapsible needle, such that the sharp tip of the needle is covered after use thereby protecting the user from accidental needle sticks. In one embodiment, the needle cover is hollow and holds the needle at the tip. When the sharp tip is struck on a hard surface, the needle collapses inside of the needle cover. A second embodiment of the invention provides for a cover which slides back and forth along the length of a needle and is held in a forward position by a lever which is movably disposed within a groove at the base of the needle. In the third embodiment, the needle cover only partially the covers the outer surface of the needle, and when the needle is held by a needle holder such that the needle holder contacts both the cover and the needle, then the needle tip is exposed.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: August 27, 1996
    Inventors: Stacy I. Thomas, Rose Akerman
  • Patent number: 5526666
    Abstract: An apparatus for forming at least one curved, rectangular bodied surgical needle which comprises frame means, flat press means associated with said frame means for imparting first flat surfaces to opposite sides of at least a portion of at least one needle blank, curving means associated with said frame means for imparting an arcuate profile to at least a portion of the at least one needle blank and side press means mounted on said frame portion for imparting second flat surfaces to opposite sides of the needle blank, wherein said second flat surfaces are imparted substantially perpendicular to said first flat surfaces.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: June 18, 1996
    Assignee: United States Surgical Corporation
    Inventors: Michael W. Bogart, Richard J. Smith
  • Patent number: 5479980
    Abstract: An apparatus for preparing drilled needle blanks from a spool of coiled stock wire may include a laser for drilling a bore in the end of the stock wire and a cutting device for cutting the drilled wire into needle blanks.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: January 2, 1996
    Assignee: United States Surgical Corporation
    Inventor: Rolf A. Spingler
  • Patent number: 5457978
    Abstract: An apparatus having a frame; a shuttle member, adapted to receive and hold a needle blank, and movably mounted to the frame; a clamp member detachably mounted on the frame for supplying needle blanks to the shuttle member; a transfer mechanism mounted on the frame for facilitating the transfer of the needle blanks from the clamp member to the shuttle member; a press mechanism for imparting first flat surfaces to first opposing sides of the needle blanks held by the shuttle member; a mandrel mounted on the frame for imparting an arcuate profile to the needle blanks; a transport mechanism for transporting the needle blanks from the shuttle member to the mandrel; and a needle side press for imparting second flat surfaces to second opposing sides of the needle blanks.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: October 17, 1995
    Assignee: United States Surgical Corporation
    Inventors: Michael W. Bogart, Richard J. Smith
  • Patent number: 5438746
    Abstract: An automated machine for attaching a suture to a surgical needle comprises a first apparatus located at a first predetermined location for sorting a plurality of randomly oriented needles and orienting each needle for automatic handling at a first predetermined location, each of the needles having a suture receiving opening formed therein. A second apparatus located at a second predetermined location is provided for automatically cutting an indefinite length of suture material to a definite length suture strand and for automatically inserting an end of the definite length suture strand into the suture receiving opening formed in the needle. Also provided is a third apparatus for swaging the needle to close the suture receiving opening about the suture to secure said suture thereto and form therefrom a needle and suture assembly.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: August 8, 1995
    Assignee: Ethicon, Inc.
    Inventors: David Demarest, Robert B. Duncan, John F. Blanch
  • Patent number: 5411613
    Abstract: Surgical needles are produced from martensitic precipitation-hardening stainless steel and then vacuum heat treated and vacuum cooled to increase its tensile strength while retaining the polished surface of the needle. A needle made by this process is also disclosed.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: May 2, 1995
    Assignee: United States Surgical Corporation
    Inventors: Said Rizk, William O. Powers, W. Scott Samsel