Radially expandable intramedullary nail
First Claim
1. An intramedullary nail having a head, a tip, and a longitudinal axis for fixation of a fractured bone having a medullary canal, the intramedullary nail comprising:
- a first radially expandable section adjacent to the head;
a second radially expandable section adjacent to the tip; and
a non-expandable section disposed between the first and second radially expandable sections;
wherein the first and second radially expandable sections each comprise a slotted tubular member.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention is related to an intramedullary nail for fixation of a fractured bone having a medullary canal. The intramedullary nail may comprise a first radially expandable section provided in a proximal section adjacent to the head of the intramedullary nail, a second radially expandable section provided in the distal section adjacent to the tip of the intramedullary nail, and a non-expandable middle section provided between said two radially expandable sections of the intramedullary nail. The head may provide a distraction mechanism, by means of which said two radially expandable sections are distractible transverse to said longitudinal axis.
290 Citations
33 Claims
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1. An intramedullary nail having a head, a tip, and a longitudinal axis for fixation of a fractured bone having a medullary canal, the intramedullary nail comprising:
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a first radially expandable section adjacent to the head;
a second radially expandable section adjacent to the tip; and
a non-expandable section disposed between the first and second radially expandable sections;
wherein the first and second radially expandable sections each comprise a slotted tubular member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An intramedullary nail having a head, a tin, and a longitudinal axis for fixation of a fractured bone having a medullary canal, the intramedullary nail comprising:
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a first radially expandable section adjacent to the head;
a second radially expandable section adjacent to the tip; and
a non-expandable section disposed between the first and second radially expandable sections;
wherein the expandable and non-expandable sections are tubular members that are positioned over the sleeve in sequence and are secured on the sleeve by a nut, the sequence of positioning the tubular members comprising;
a slotted tubular member, an unslotted tubular member, a slotted tubular member, and an unslotted tubular member.- View Dependent Claims (17, 18)
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19. An intramedullary nail having a head, a tip, and a longitudinal axis for fixation of a fractured bone having a medullary canal, the intramedullary nail comprising:
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a first radially expandable section adjacent to the head;
a second radially expandable section adjacent to the tip;
a non-expandable section disposed between the first and second radially expandable sections; and
a hollow cylindrical sleeve extending along the longitudinal axis and surrounding a locking element coaxially to the longitudinal axis;
wherein the locking element comprises a shaft with a thread in a proximal section and a projection forming an abutment in a distal section; and
wherein a distal section of the sleeve provides a slot penetrating a side wall through to a bore and the projection of the locking element is movable to slide within said slot in the direction of the longitudinal axis.
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20. An intramedullary nail for fixation of a fractured bone having a medullary canal, the intramedullary nail comprising:
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a central member comprising a proximal section with a head, a distal section with a tip, and a longitudinal axis;
a first radially expandable member slidably disposed on the proximal section of the central member;
a second radially expandable member slidably disposed on the distal section of the central member; and
a non-expandable section slidably disposed on the central member between the first and second radially expandable sections. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification