1
Craig Glascott: Polyaxial screw with improved locking. Depuy Acromed, Andrew C Farmer, March 22, 2005: US06869433 (268 worldwide citation)

A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of the concave surface is less than a radius of the mating convex portion whereby to create an interference ...


2
Peter Stuart Arnold: Multi-layer wound dressing. Johnson & Johnson Medical, Andrew C Farmer, James Riesenfeld, June 2, 1998: US05759570 (167 worldwide citation)

The invention provides wound dressings comprising a molecular filtration membrane having a maximum pore size in the range of from 0.001 .mu.m to 0.5 .mu.m, and preferably in the range of from 0.01 .mu.m to 0.25 .mu.m. The wound dressings may also comprise an absorbent layer atop the molecular filtra ...


3
Su Syin Wu, Charles S Bankert, Anahid Gamsarian, Abraham Merhazion: Sterilization container and instrument holder therefor. Ethicon, Andrew C Farmer, February 27, 2001: US06193932 (109 worldwide citation)

A sterilization container has an improved elastomeric instrument holder. The instrument holder comprises a panel of elastomer having a projection depending downwardly therefrom and received within an perforation through a perforated surface within the container to hold the panel thereto. An aperture ...


4
Livingston B Morris: Apparatus for pumping fluid at a steady flow rate. Therakos, Andrew C Farmer, July 13, 1999: US05921951 (109 worldwide citation)

An apparatus for pumping fluid at a steady rate. A first drive chamber having a movable outer surface, and a second drive chamber having a movable outer surface are provided. The apparatus further includes a block having a plurality of internal passages including a first passage for receiving the fl ...


5
Wilson Harvey, Nicholas D Light, Carla A Haynes: Composite surgical material. Johnson & Johnson Medical, Andrew C Farmer, Theodore J Shatynski, December 14, 1999: US06001895 (108 worldwide citation)

A composite surgical material comprising a collagen matrix reinforced by a layer of a synthetic bioabsorbable material such as polylactide/polyglycolide or oxidized regenerated cellulose, and wherein oil droplets are dispersed in the collagen matrix. The oil droplets comprise 1% to 75% of the weight ...


6
Nicholas D Light, James MacGregor, Wilson Harvey, Paul W Watt: Absorbable structures for ligament and tendon repair. Johnson & Johnson Medical, Andrew C Farmer, May 7, 1996: US05514181 (99 worldwide citation)

A fully absorbable prosthesis (1) for the repair of damaged ligaments and/or tendons in the form of a multilayer spiral roll comprising the following spiral layers: a foraminous layer (2) of a synthetic bioabsorbable material; a bioabsorbable film (3); and a layer (4) of a bioabsorbable biopolymer s ...


7
Elaine Whitmore: Single use system for preparation of autologous plasma. Johnson & Johnson Medical, Andrew C Farmer, October 7, 1997: US05674394 (91 worldwide citation)

A system for preparing autologous plasma comprises a single use filter unit having two inlets in fluid communication with each other, an outlet, and a filtration membrane selectively permeable to blood plasma separating the inlets from the outlet. Manually operable, single use pumps, preferably syri ...


8
James McGregor, Paul W Watt, Nicholas D Light, Wilson Harvey: Absorbable implant materials having controlled porosity. Johnson & Johnson Medical, Andrew C Farmer, February 9, 1999: US05869080 (87 worldwide citation)

Absorbable implant materials having controlled porosity are formed by a method comprising the steps of: providing a dispersion of a bioabsorbable polymer, such as collagen, in a first solvent, such as water; adding particles of a second material, e.g. frozen water droplets or ice particles to the di ...


9
Arthur L Rosenthal, Nicholas D Light, Carla A Haynes: Heteromorphic sponges containing active agents. Johnson & Johnson Medical, James Riesenfeld, Andrew C Farmer, November 14, 1995: US05466462 (76 worldwide citation)

The invention provides wound dressing and/or implant materials comprising a matrix structure of sponge, at least one substructure and at least one pharmacologically active agent, wherein both the matrix structure and the substructure are formed from bioabsorbable biopolymer materials. The substructu ...


10
Deborah Addison: Absorbent wound dressings. Johnson & Johnson Medical, Andrew C Farmer, Theodore Shatynski, November 9, 1999: US05981822 (75 worldwide citation)

The invention provides a wound dressing (1) comprising a wound contacting sheet (4) laminated to one side of an absorbent layer (3) of water-swellable absorbent material such as a polyurethane. A liquid water-impermeable backing layer (2) is laminated to the other side of the absorbent layer (3). Th ...