Reticulated orthopaedic element to exploit the medullary canal of the long bones
First Claim
1. Element for osteosynthesis comprising a central part and two end parts, the two end parts include a proximal end and a distal end part, such that said two end parts are comprised of a reticulate of titanium or other biocompatible material which is used to exploit the medullary canal of the bones, said proximal end is provided with coupling means, for temporary coupling to an introduction instrument, and wherein the meshes of the reticulate allow the screwing of at least a transverse screw, wherein said reticulate parts are covered with a sheath of biocompatible plastics, selected from the group consisting essentially of polytetrafluoroethylene or polyethylene, or a biocompatible metal, or thin titanium lamina, such that the sheet prevents a bond between the bone tissue and screw and such that said element may be introduced into a patient without the use of an image intensifier.
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Abstract
Element for osteosynthesis including a central part or stem and two end parts. The two end parts have a proximal end and a distal end. The two end parts are comprised of a reticulate of titanium or other biocompatible material which is used to exploit the medullary canal of the bones. The proximal end may be temporarily coupled to an introduction instrument. The meshes of the reticulate allow for screwing of at least one transverse screw.
167 Citations
20 Claims
- 1. Element for osteosynthesis comprising a central part and two end parts, the two end parts include a proximal end and a distal end part, such that said two end parts are comprised of a reticulate of titanium or other biocompatible material which is used to exploit the medullary canal of the bones, said proximal end is provided with coupling means, for temporary coupling to an introduction instrument, and wherein the meshes of the reticulate allow the screwing of at least a transverse screw, wherein said reticulate parts are covered with a sheath of biocompatible plastics, selected from the group consisting essentially of polytetrafluoroethylene or polyethylene, or a biocompatible metal, or thin titanium lamina, such that the sheet prevents a bond between the bone tissue and screw and such that said element may be introduced into a patient without the use of an image intensifier.
Specification
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Current AssigneeGideon Raphael Tock
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Original AssigneeGideon Raphael Tock
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InventorsTock, Gideon Raphael
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Primary Examiner(s)Buiz, Michael
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Assistant Examiner(s)Woo, Julian W.
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Application NumberUS08/586,839Time in Patent Office659 DaysField of Search606/62, 606/76, 606/77, 606/151, 606/64, 623/19, 623/20US Class Current606/62CPC Class CodesA61B 17/72 Intramedullary pins, nails ...A61B 17/86 Pins or screws or threaded ...A61B 90/39 Markers, e.g. radio-opaque ...A61F 2/30767 Special external or bone-co...A61F 2/30907 Nets or sleeves applied to ...A61F 2/3662 Femoral shaftsA61F 2/38 for elbows or kneesA61F 2/3804 for elbowsA61F 2/40 for shouldersA61F 2002/3008 radio-opaque, e.g. radio-op...A61F 2002/30405 made by screwing complement...A61F 2002/30909 NetsA61F 2002/30917 for avoiding direct contact...A61F 2002/3652 Connections of necks to shaftsA61F 2220/0025 Connections or couplings be...A61F 2250/0098 radio-opaque, e.g. radio-op...A61F 2310/00023 Titanium or titanium-based ...
