Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
  • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L17/00—Materials for surgical sutures or for ligaturing blood vessels ; Materials for prostheses or catheters
  • A61L17/06—At least partially resorbable materials
  • A61L17/10—At least partially resorbable materials containing macromolecular materials
  • A61L17/12—Homopolymers or copolymers of glycolic acid or lactic acid
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
  • D01D5/00—Formation of filaments, threads, or the like
  • D01D5/12—Stretch-spinning methods
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
  • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
  • D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
  • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
  • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/04—Surgical instruments, devices or methods for suturing wounds; Holders or packages for needles or suture materials
  • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
  • A61B17/06166—Sutures
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B2017/00004—(bio)absorbable, (bio)resorbable or resorptive
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B2017/00831—Material properties
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
  • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

Definitions

• the diameter of the orifice can range from about 1 to 3 millimeters, and more preferably from about 1 to 1.5 millimeters.
• the air is introduced into the chamber at a preferred pressure of about 80 to 100 psi (5.6 to 7.0 kilograms per square centimeter), although a range of about 10 to 100 psi (.70 to 7.0 kilograms per square centimeter) is acceptable.
• spin drawing a PGA polymer to form surgical filaments and subsequently processing the filament yarn using an air entangler offers many advantages over conventional medical suture forming methods.
• spin drawing a PGA polymer significantly increases production over the conventional two-step extrusion method of forming suture filaments.
• using a jet entangler to entangle the yarn eliminates the need for a twisting operation of the individual filaments and the accompanying capital costs of twisting equipment and facilities, resulting in lower production costs.
• the draw ratio of the yarn as it is processed by the draw twisting apparatus can be, for example, in the range of 2 to 20, and more preferably in the range of 4 to 5.
• the second embodiment also contemplates using an air jet entangler, as disclosed above with respect to the first embodiment, to entangle the multi -filament yarn produced in the spinning process of step 1.
• the air jet entangler would replace the draw-twisting apparatus.
• the as-spun filaments are subsequently drawn over a series of godets rotating at sequentially increasing speeds to be drawn at a ratio in, for example, the range of 2 and 20, and more preferably in the range of 4 to 5.
• the drawing step can be performed a relatively long period of time after the filaments are spun, for example, a day or two later.
• the modified process also contemplates performing the drawing step substantially immediately after the filaments are spun and lubricated to prevent aging of the filaments.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Health & Medical Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Epidemiology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Surgery (AREA)
• Vascular Medicine (AREA)
• Mechanical Engineering (AREA)
• Materials Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Dispersion Chemistry (AREA)
• Materials For Medical Uses (AREA)

Applications Claiming Priority (7)

Publications (2)

Family

ID=27408823

Family Applications (1)

Country Status (3)

Families Citing this family (4)

Family Cites Families (5)

• 1995
  • 1995-12-22 AU AU45290/96A patent/AU4529096A/en not_active Abandoned
  • 1995-12-22 WO PCT/US1995/016813 patent/WO1996020648A1/en not_active Ceased
  • 1995-12-22 EP EP95943967A patent/EP0804125A4/de not_active Withdrawn

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