Polymer Patents (Class 606/910)
  • Patent number: 9028548
    Abstract: A prosthesis replaces all or a portion of a natural facet joint on a vertebral body. The prosthesis has a prosthesis body accommodating fixation to the vertebral body at or near a pedicle and without support by a lamina. The prosthesis body has a fastening element installed within the vertebral body at or near a pedicle. The prosthesis further has an artificial facet joint structure carried by the prosthesis body at a location spaced from the fastening element. The artificial facet joint structure is adapted and configured to replace all or a portion of a natural facet joint.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: May 12, 2015
    Assignee: GMEDELAWARE 2 LLC
    Inventor: Mark A Reiley
  • Patent number: 8927083
    Abstract: A handle and a method of fabricating a handle, or another article of manufacture, that minimizes or avoids the likelihood of accumulating contamination before, during, or after use. The article includes a core element, for example, a plastic core element, having an outer surface and raised indicia, such as, letters or logos, extending beyond the outer surface; and a light-transferring material completely covering the raised indicia of the core element wherein the raised indicia are visible through the light-transferring material. The complete covering of the indicia avoids separation between the cover and the indicia. The cover material may be a translucent thermoplastic elastomer. Though particularly applicable to the medical device industry, aspects of the invention may be applied to a broad range of industries.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: January 6, 2015
    Assignee: Mack Molding Company
    Inventor: Randolph W. Pell
  • Patent number: 8821548
    Abstract: A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: September 2, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, T. Wade Fallin, Henry A. Klyce
  • Patent number: 8808329
    Abstract: An anchor connected with a suture is moved through a passage between opposite sides of a bone. The anchor is then pivoted to change its orientation. A second anchor is connected with the suture. While tension is maintained in the suture, the suture is secured against movement relative to the anchors. This may be done by tying the suture or by using a suture retainer to hold the suture. A suture retainer may be used in place of the second anchor. The passage may extend across a fracture in the bone. The passage may have either a nonlinear or linear configuration. The passage may be formed by first moving a thin elongated member through the bone. The thin elongated member is then used as a guide for a drill. The thin elongated member is withdrawn from the drill and the suture anchor is moved through a passage in the drill.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: August 19, 2014
    Assignee: Bonutti Skeletal Innovations LLC
    Inventor: Peter M. Bonutti
  • Patent number: 8808378
    Abstract: A prosthesis replaces all or a portion of a natural facet joint on a vertebral body. The prosthesis has a prosthesis body accommodating fixation to the vertebral body at or near a pedicle and without support by a lamina. The prosthesis body has a fastening element installed within the vertebral body at or near a pedicle. The prosthesis further has an artificial facet joint structure carried by the prosthesis body at a location spaced from the fastening element. The artificial facet joint structure is adapted and configured to replace all or a portion of a natural facet joint.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: August 19, 2014
    Assignee: GMEDELAWARE 2 LLC
    Inventor: Mark A Reiley
  • Patent number: 8507614
    Abstract: Absorbable, multiphasic, crystalline, solid blend compositions having at least two first order thermal transitions, are formed of a segmented l-lactide copolymer as the principal or major component and at least one additional crystalline thermoplastic absorbable polyester having glycolide-based sequences, a fraction of which participated in ester-ester interchange reactions with lactide-based sequences to produce crystalline materials with modulated properties for use in producing orthopedic and tissue-repair devices.
    Type: Grant
    Filed: February 7, 2009
    Date of Patent: August 13, 2013
    Assignee: Poly-Med, Inc.
    Inventors: Shalaby W Shalaby, Michael Scott Taylor, Shawn J. Peniston
  • Patent number: 8337526
    Abstract: The present invention relates to spinal support devices and, more specifically, to a flexible member having variable flexibility for use with a dynamic stabilization system or implant to provide dynamic stability to a person's spine. The flexible member generally includes a first material having a first portion including a first material having a first elasticity and a second portion including a second material having a second elasticity greater than the first to provide the flexible member with a variable flexibility.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: December 25, 2012
    Assignee: Zimmer Spine, Inc.
    Inventors: Hugh D. Hestad, Steven L. Griffith
  • Patent number: 8288344
    Abstract: The invention is directed toward a sterile formable implant composition for application to a bone defect site comprising bioactive glass particles in an aqueous carrier solution, the bioactive glass particles being added to a viscous carrier at a concentration ranging from about 68% to about 76% (w/w), the carrier comprising a mixture of glycerol and polyethylene glycol ranging from 24% to 32% (w/w) with the ratio of glycerol to polyethylene glycol ranging from about 45:55 to about 65:35.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: October 16, 2012
    Assignee: Musculoskeletal Transplant Foundation
    Inventor: Carl Alexander DePaula
  • Patent number: 8278397
    Abstract: Disclosed are a medical instrument and a medical material each comprising an aliphatic polyester resin composition, which are hardly reduced in strength and impact resistance upon the sterilization by ionizing radiation or have excellent shape-retaining properties after a heat treatment. Specifically, a medical instrument and a medical material both sterilized by ionizing radiation are provided, each of which contains a biodegradable resin and a polycarbodiimide compound in an amount of 0.1 to 10% by weight on the resin. The biodegradable resin is polybutylene succinate, a copolymer of polybutylene succinate, or a mixture of polybutylene succinate and a copolymer of polybutylene succinate with polylactic acid or poly(3-hydroxyalkanoate). A method of producing such medical instrument and medical material is also provided.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: October 2, 2012
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Hiromasa Kohama
  • Patent number: 8124687
    Abstract: A polymeric material comprised of (i) at least one random copolymer comprised of ethylene oxide and one or more other alkylene oxide(s) and (ii) at least one non-random polymer comprised of one or more poly(alkylene oxide)s has been discovered. Preferably, it is a polymer alloy. Alkylene oxide homopolymers or block copolymers may be the non-random polymer. In a related discovery, an adhesive material can be made by suspending (a) particles in (b) a matrix of at least one poly(ethylene oxide) copolymer of ethylene oxide and propylene oxide, or a combination thereof. The handling characteristics may be adjusted for different utilities (e.g., from runny oil to hard wax). Applications include use as adhesive, cohesive, filler, lubricant, surfactant, or any combination thereof. In particular, the hard materials may be used for cleaning or waxing.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 28, 2012
    Assignee: Syncera, Inc.
    Inventors: Tadeusz Wellisz, Timothy C. Fisher, Jonathan K. Armstrong, John Cambridge
  • Patent number: 7902303
    Abstract: An aliphatic polyester polymer compositions and preparation method thereof. The invention provides a bioresorbable aliphatic polyester copolymer, comprising the reaction product of a first polyester, a second polyester, and a coupling agent. Specifically, the first polyester and second polyester have the same repeat units, but different weight average molecular weights. Methods for preparing the aliphatic polyester copolymer are provided, in which the first polyester reacts with the second polyester in the presence of the coupling agent, undergoing copolymerization.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 8, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Jean-Dean Yang, Jui-Hsiang Chen, Meng-Yow Hsieh, Pei Pei Cheng
  • Patent number: 7829616
    Abstract: A polymeric material comprised of (i) at least one random copolymer comprised of ethylene oxide and one or more other alkylene oxide(s) and (ii) at least one non-random polymer comprised of one or more poly(alkylene oxide)s has been discovered. Preferably, it is a polymer alloy. Alkylene oxide homopolymers or block copolymers may be the non-random polymer. In a related discovery, an adhesive material can be made by suspending (a) particles in (b) a matrix of at least one poly(ethylene oxide) copolymer of ethylene oxide and propylene oxide, or a combination thereof. The handling characteristics may be adjusted for different utilities (e.g., from runny oil to hard wax). Applications include use as adhesive, cohesive, filler, lubricant, surfactant, or any combination thereof. In particular, the hard materials may be used for cleaning or waxing.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: November 9, 2010
    Assignee: Syncera, Inc.
    Inventors: Tadeusz Wellisz, Timothy C. Fisher, Jonathan K. Armstrong, John Cambridge
  • Publication number: 20100262142
    Abstract: Gamma radiation sterilizable, reinforced polymer composition (C) comprising: at least one semi-aromatic polyamide (PA), at least one filler (F) selected from platy fillers, acicular fillers and fibrous fillers, and at least one inorganic pigment (IP) having a Mohs hardness of at most 4.5 and a refractive index of at least 1.70.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 14, 2010
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventor: Geert Verfaillie
  • Patent number: 7758619
    Abstract: A unitary body spine distraction implant which is inserted between a first spinous process and a second spinous process has saddles adapted to be in contact with the spinous processes and tethers to hold the spinous processes in the saddles in order to alleviate pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: July 20, 2010
    Assignee: Kyphon SÀRL
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce
  • Patent number: 7737060
    Abstract: According to an aspect of the present invention, medical devices are provided that contain at least one multi-component polymeric fiber. The multi-component polymeric fiber further contains at least two components of differing composition.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: June 15, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Frederick H. Strickler, Barron Tenney
  • Patent number: 7695496
    Abstract: Various methods and devices are provided for stabilizing the posterior elements of the spine, and more preferably methods and devices are provided for sharing the load with the intervertebral disc, the facet joints, the ligaments, and the muscles of the spinal column. In certain exemplary embodiments, methods and devices are provided for substantially controlling or providing resistance to movement, e.g., flexion, extension, lateral bending, and/or axial rotation, of the adjacent vertebrae.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: April 13, 2010
    Assignee: DePuy Spine, Inc.
    Inventors: Robert Labrom, Amie Borgstrom, William Dunbar, SeungKyu Daniel Kwak, John Riley Hawkins
  • Patent number: 7582106
    Abstract: A subcutaneously assembled in place orthopedic construct is provided, such as for fixation of the spine. The construct includes a first bar and a second bar for attachment to the spine. A crossbar connects the first and second bar, to provide additional structural support. Each of the first bar, the second bar, and the crossbar may be inserted in a minimally invasive procedure, and constructed in place to form the orthopedic device. Each of the first bar, second bar, and crossbar may comprise an inflatable container, adapted for inflation with a hardenable media and cured in place. Methods and delivery structures are also disclosed.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: September 1, 2009
    Inventors: George P. Teitelbaum, Samuel M. Shaolian, To V. Pham, Thanh Van Nguyen
  • Patent number: 7553913
    Abstract: A polymeric material comprised of (i) at least one random copolymer comprised of ethylene oxide and one or more other alkylene oxide(s) and (ii) at least one non-random polymer comprised of one or more poly(alkylene oxide)s has been discovered. Preferably, it is a polymer alloy. Alkylene oxide homo-polymers or block copolymers may be the non-random polymer. In a related discovery, an adhesive material can be made by suspending (a) particles in (b) a matrix of at least one poly(ethylene oxide) copolymer of ethylene oxide and propylene oxide, or a combination thereof. The handling characteristics may be adjusted for different utilities (e.g., from runny oil to hard wax). Applications include use as adhesive, cohesive, filler, lubricant, surfactant, or any combination thereof. In particular, the hard materials may be used for cleaning or waxing.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: June 30, 2009
    Assignee: Syncera, Inc.
    Inventors: Tadeusz Wellisz, Timothy C. Fisher, Jonathan K. Armstrong, John Cambridge
  • Publication number: 20090118241
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Application
    Filed: April 22, 2008
    Publication date: May 7, 2009
    Applicant: ETHICON, INC.
    Inventors: Sasa ANDJELIC, Benjamin D. FITZ, Jianguo Jack ZHOU
  • Patent number: 7520887
    Abstract: An interspinous device for impeding the movements of two successive vertebrae (8, 9) of the spinal column. In some embodiments, the device includes two pads (2a, 2b; 11a, 11b; 20a, 20b) whose internal faces (3a, 3b; 12a, 12b) are intended to be pressed against the lateral faces of the spinous processes (6, 7) of the vertebrae (8, 9), and ligaments (4, 5a, 5b, 5c, 5d; 17a, 17b, 18, 19; 23, 24) which connect the pads (2a, 2b; 11a, 11b; 20a, 20b) to each other and to the spinous processes (6, 7), so that, during flexion and extension movements of the spinal column with respect to its normal position, the pressures exerted against the lateral faces of the spinous processes (6, 7) by the pads (2a, 2b; 11a, 11b; 20a, 20b) increase as the spinal column moves away from the normal position. Method for making a pad designed for such a device.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: April 21, 2009
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Philippe Maxy, Jose Gournay