Abstract: The present invention relates to a surgical fastener or device (implant) formed in the shape of an arrow comprising a shaft with a proximal (first) portion having a blunt end and tapered form, such that the proximal portion is broad at its blunt end and tapers in the direction of a distal (second) portion of the shaft, the distal portion having protrusions and a pointed end, wherein the tapered form of the proximal portion and the protrusions of the distal portion are configured to lock the implant in a position inside a soft and/or tough tissue according to the use of the implant. The implant may be manufactured of a polymer or a polymeric compound which is substantially (bio)absorbable (resorable) after implantation in tissue and contains an oriented reinforcing structure or the like of a polymer or polymeric compound or ceramic bioactive glass compound.
Type:
Grant
Filed:
March 14, 2000
Date of Patent:
April 22, 2003
Assignee:
Bionx Implants, Oy
Inventors:
Pertti Törmälä, Markku Tamminmäki, Timo Pohjonen, Auvo Kaikkonen
Abstract: The device of the present invention is designed for repairing a tear in soft and/or tough tissue of a patient, such as a tear in the meniscus of the knee. The device has a conduit, such as a cannula, that may be easily inserted into the patient and through which the fastener is delivered to the patient. This conduit is aligned with a seat for holding a fastener and the fastener is pushed, e.g., by a piston, from its seat and through the conduit and into the patient. In a preferred embodiment of the invention, the shape of the conduit exactly matches the shape of the cross-section of the fastener so that the surgeon may more accurately direct the angle and location at which the fastener enters the patient.
Type:
Grant
Filed:
August 4, 1999
Date of Patent:
October 1, 2002
Assignee:
Bionx Implants, Oy
Inventors:
Pertti Törmälä, Olli Karhi, Markku Tamminmaki
Abstract: This invention describes a rigid layered composite material including a bioabsorbable plate layer and a bioabsorbable web layer for guided bone tissue regeneration, particularly suited for use in the treatment of cranial bone defects.
Type:
Grant
Filed:
September 14, 1998
Date of Patent:
February 26, 2002
Assignee:
Bionx Implants, Oy
Inventors:
Pertti Törmälä, Minna Kellomäki, Timo Waris
Abstract: A tool for installing a suture anchor which supports first and second suture segments having free ends, the tool including an installation end adapted to accommodate the suture anchor and to transmit mechanical power for driving the suture anchor, and a guiding arrangement adapted to guide and support the first and second suture segments in a non-parallel configuration at the installation end. The guiding arrangement may include at least one suture guide adapted to support the first and second suture segments, respectively, at least at a first and a second support points, which are spaced laterally with respect to a direction of installation of the suture anchor.