Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis
First Claim
1. A device for promoting bone growth comprising:
- an implant having an outer surface sized for placement between and in contact with adjacent bone masses and having openings in said outer surface into which bone from the adjacent bone masses grows; and
means for energizing said implant to promote bone growth.
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Accused Products
Abstract
An electrical bone growth promotion apparatus and method for the delivery of electrical current to an implant surgically implanted within the intervertebral space between two adjacent vertebrae of the spine to promote bone growth and the fusion process to areas adjacent to the implant. The apparatus of the present invention comprises a self contained implant having a surgically implantable, renewable power supply and related control circuitry for delivering electrical current directly to the implant and thus directly to the area in which the promotion of bone growth is desired. The desired areas of bone growth promotion may be controlled by conducting negative charge only to the desired location of bone growth promotion.
432 Citations
128 Claims
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1. A device for promoting bone growth comprising:
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an implant having an outer surface sized for placement between and in contact with adjacent bone masses and having openings in said outer surface into which bone from the adjacent bone masses grows; and means for energizing said implant to promote bone growth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. An assembly for delivering electric current to promote bone growth between adjacent vertebral bodies of a human spine, said assembly comprising:
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an implant having an outer surface sized for placement between and in contact with the adjacent vertebral bodies, said implant having openings in said outer surface into which bone from the adjacent vertebral bodies grows; and means for energizing said implant from a point external to a patient'"'"'s body. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A method for promoting bone growth with an implant surgically implanted into the area of bone to be joined, comprising the steps of:
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placing said implant between adjacent bone masses and in contact with the adjacent bone masses to be joined by bone growth; and energizing said implant to promote bone growth in the adjacent bone masses and into said implant. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
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76. A self contained implantable medical device for promoting bone growth between bone masses, the medical device including:
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an implant having an outer surface sized to be placed between and into contact with the bone masses; a source of electrical charge contained within said implant; and means for delivering charge from said source to the bone masses to promote bone growth into said implant. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84)
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85. A self contained implantable medical device for placement between adjacent bone masses for promoting bone growth, comprising:
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an implant for placement between and in contact with the adjacent bone masses, said implant having a first portion being electrically conductive for delivering electrical charge to at least a portion of the adjacent bone masses; charge means contained within said implant for providing electrical charge at a predetermined polarity; and means interposed between said charge means and said first portion for transferring charge from said charge means to said first portion, thereby promoting bone growth into said implant. - View Dependent Claims (86, 87, 88, 89, 90, 91)
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92. A device for promoting bone growth comprising:
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an implant sized for placement between and in contact with adjacent bone masses along a contacting surface for each of the adjacent bone masses, said implant having exterior dimensions sized to be contained substantially between said contacting surfaces of the adjacent bone masses; and means for energizing said implant to promote bone growth, said energizing means contained within said implant. - View Dependent Claims (93, 94, 95, 96, 97, 98)
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99. A method for promoting bone growth with an implant surgically implanted into the area of bone to be joined, comprising the steps of:
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placing said implant between adjacent bone masses and in contact with the adjacent bone masses along a contacting surface for each of the adjacent bone masses, said implant having exterior dimensions sized to be contained substantially between said contacting surfaces of the adjacent bone masses; and energizing said implant with a source contained within said implant to promote bone growth in the area of bone adjacent to said implant. - View Dependent Claims (100, 101, 102, 103, 104)
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105. A self contained implantable medical device for promoting bone growth between bone masses, the medical device including:
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an implant sized to be placed between and into contact with the bone masses along a contacting surface for each of the bone masses, said implant having exterior dimensions sized to be contained substantially between said contacting surfaces of the bone masses; a source of electrical charge contained within said implant; and means for delivering charge from said source to the bone masses to promote growth. - View Dependent Claims (106, 107, 108, 109)
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110. A device for promoting bone growth comprising:
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an implant sized for placement between and in contact with adjacent bone masses along a contacting surface for each of the adjacent bone masses, said implant having exterior dimensions sized to be contained substantially between said contacting surfaces of the adjacent bone masses; and means for energizing said implant from a point external to a patient'"'"'s body to promote bone growth. - View Dependent Claims (111, 112, 113, 114, 115, 116)
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117. An assembly for delivering electric current to promote bone growth between adjacent vertebral bodies of a human spine, said assembly comprising:
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an implant sized for placement between and in contact with each of the adjacent vertebral bodies, said implant having exterior dimensions sized to be contained substantially within the depth and width of the vertebral bodies; and means for energizing said implant from a point external to a patient'"'"'s body. - View Dependent Claims (118, 119, 120, 121, 122)
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123. A method for promoting bone growth with an implant surgically implanted into the area of bone masses to be joined, comprising the steps of:
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placing said implant between adjacent bone masses and in contact with the adjacent bone masses along a contacting surface for each of the adjacent bone masses, said implant having exterior dimensions sized to be contained substantially between said contacting surfaces of the adjacent bone masses; and energizing said implant from a point external to a patient'"'"'s body to promote bone growth in the area of bone adjacent to said implant, so as promote the joining of the bone masses by bone growth. - View Dependent Claims (124, 125, 126, 127, 128)
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Specification