Absorbable surgical fastener with bone penetrating elements
First Claim
1. A surgical bone pin comprising bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
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Abstract
A self-inserting absorbable orthopedic fixation device having a bioabsorbable fastening body portion for fastening body tissue, and having bone penetrating elements such as hard, pointed tips for penetrating bone or hard tissue fixed thereto. The pointed tips may be fabricated from metals or ceramics. The fixation device may be in the form of staples, pins, screws, and the like.
1746 Citations
38 Claims
- 1. A surgical bone pin comprising bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
- 10. A surgical bone pin comprising a bioabsorbable shaft having distally and proximally facing end surfaces, a first bone penetrating element for drilling into bone and having a proximally facing proximal end surface in contact with said distally facing end surface of said bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameter, and a second bone penetrating element for drilling into bone and having a distally facing distal end surface in contact with the proximally facing end surface of said bioabsorbable shaft, said distally facing distal end surface and said proximally facing end surface having the same outer diameter, said shaft having a rectilinear longitudinal axis, said bone penetrating elements being aligned with said longitudinal axis and said bone penetrating elements being of sufficient length to be gripped by drilling means and inserted into bone, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
- 18. A surgical bone pin comprising a bioabsorbable shaft having a distally facing end surface, and at least one non-biodegradable bone penetrating element having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface of the bone penetrating element and distally facing end surface of the shaft having the same outer diameters, said bioabsorbable shaft having a uniform diameter throughout its length, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
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36. A surgical fastener comprising;
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a bioabsorbable shaft having a single longitudinal axis, a distally facing end surface, and a uniform diameter throughout its length; and at least one non-biodegradable bone penetrating dement aligned with said longitudinal axis of said shaft, said bone penetrating dement having a pointed distal end and a proximaly facing proximal end surface in contact with the distally facing end surface of said shaft, said proximaly facing proximal end surface of said bone penetrating element and said distally facing end surface of said shaft having the same outer diameter, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximaly facing end surfaces, wherein said projecting member has a non-circular cross-section.
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- 37. A surgical bone pin comprising a bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone, wherein said shaft and said bone penetrating element are joined by a permanent bond, and wherein said shaft and said bone penetrating element are non-rotatingly joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, said projecting member and said recess having a non-circular cross section.
Specification