Finsbury (development) Limited

Matortho Limited

Aurora Medical Limited

Finsbury Limited

Andrew Clive Taylor

Michael Antony Tuke

Simon Collins

Carolina Avila Carrasco

Jonathan Robert Thomas Jeffers

Michael Anthony Tuke

Robert Michael Wozencroft

Peter Thomsen

Mark Taylor

A ceramic femoral resurfacing head prosthesis () comprises a ceramic convex outer contact surface () engagable with an acetabulum of a patient or an acetabular cup prosthesis and a concave inner fixation surface () having an inner-land portion (), the ceramic convex outer contact surface () and the concave inner fixation surface () extending to intersect each other at a rim (). A ceramic stem () projects from the concave inner fixation surface (), and is adapted to be received by a stem bore. The concave inner fixation surface () includes a skirt () which is cylindrical or substantially cylindrical, or frusto-conical or substantially frusto-conical, and at least one circumferentially elongate recess () at the skirt ().

Ceramic femoral resurfacing head prosthesis

A ceramic acetabular cup devoid of a separate liner comprises a part-spherical inner articulating surface and an outer surface. An inner radius at or adjacent to a rim of the cup extends to or adjacent to a surface edge of the inner articulating surface. An inner radius of the inner articulating surface defines an active arc, and an uppermost portion of the rim defines an offset datum plane. An offset is provided between an equatorial centre of the inner articulating surface and the offset datum plane. The active arc extends in a range from around 150 degrees to less than 180 degrees, and a distance between the inner articulating surface and outer surface on a straight line from the said equatorial centre and passing through the surface edge is equal to or less than 4 mm.

Ceramic acetabular cup

A trial acetabular cup having a signal generating device located thereon.

Trial acetabular cup and kit

A prosthesis comprising: an inner layer formed from a polyaryletherketone; a first outer layer adjacent to said inner layer formed from a porous polyaryletherketone, at least some of said pores having located therein material to promote osteointegration; and a second outer layer adjacent to said first outer layer formed from a porous polyaryletherketone, a portion of said pores being free of material to promote osteointegration. The invention also relates to a method of manufacture of the prosthesis. In an alternative arrangement, the prosthesis comprises: an inner layer formed from a polyaryletherketone; a first outer layer adjacent to said inner layer formed from a porous polyaryletherketone, at least some of said pores having located therein material to promote osteointegration having a crystallinity of from about 60% to about 90%; and a second outer layer adjacent to said first outer layer formed from a porous polyaryletherketone.

Prosthesis

An acetabular cup prosthesis comprising an acetabular cup having a rim and comprising a metal band applied around the outer circumference of the acetabular cup prosthesis and adjacent to said rim.

Acetabular cup prosthesis and method of forming the prosthesis

Method of using a trial acetabular cup for insertion of an acetabular prosthesis

A prosthesis comprising: an inner layer () formed from a polyaryletherketone; a first outer layer () adjacent to said inner layer formed from a porous polyaryletherketone, at least some of said pores having located therein material to promote osteointegration; and a second outer layer () adjacent to said first outer layer formed from a porous polyaryletherketone, a portion of said pores being free of material to promote osteointegration. The invention also relates to a method of manufacture of the prosthesis. In an alternative arrangement, the prosthesis comprises: an inner layer formed from a polyaryletherketone; a first outer layer adjacent to said inner layer formed from a porous polyaryletherketone, at least some of said pores having located therein material to promote osteointegration having a crystallinity of from about 60% to about 90%; and a second outer layer adjacent to said first outer layer formed from a porous polyaryletherketone, at least a portion of said pores having located therein material to promote osteointegration having a crystallinity of less than about 50%.

A cup prosthesis includes a cup, a band disposed about the outer circumference and adjacent to the rim of the cup, an impaction cap disposed at least partially within the space defined by the inner surface and the rim of the cup, and at least one flange extending from the band connected on one end to the impaction cap.

A preassembled acetabular cup prosthesis comprising an outer shell and a ceramic liner located within the shell, said preassembled unit having been assembled ex-vivo under a controlled force selected to optimize the pre-stressing of the components of the prosthesis.

In a saw for the removal of a prosthesis which is integrated with a bone, a blade is connected to a handle wherein the distal end of the blade includes a shaped nib. The shaped nib has teeth, with at least some of the teeth being angled to cut as the saw is moved in a backward direction. The nib additionally includes means for allowing the nib to be reversibly deformed such that in use its maximum width can be temporarily reduced.

Saw for the removal of a prosthesis

The invention relates to an element for incorporation into a prosthetic implant so as to form a bone-contacting portion thereof, the element comprising a rear face, a front face, and a body extending between the rear face and the front face, wherein the front face comprises a basal surface and at least one upstanding portion projecting above the basal surface and having a transverse hole extending therethrough from one side of the upstanding portion to another. It further relates to a prosthetic implant for implantation into a patient so as to contact a bone of the patient, the prosthetic implant comprising a body including a bone-contacting portion for contacting the patient's bone after implantation of the prosthetic implant, wherein the bone-contacting portion is provided with at least one upstanding portion that projects above a surrounding basal surface portion and that is provided with a transverse hole that extends through the upstanding portion from one side to another.

Growing community of inventors

Chichester, United Kingdom

Andrew Clive Taylor