Inter-spinous process implant and method with deformable spacer
First Claim
Patent Images
14. An implant adapted for placing between spinous processes, the implant comprising:
- a body with a shaft extending therefrom;
a spacer that is rotatably mounted on mid shaft;
said spacer formed in the shape of a spool and including;
(a) a spacer shaft, having a bore extending through;
(b) a first end having an outer edge and extending from the spacer shaft;
(c) a second end having an outer edge and extending from the spacer shaft; and
(d) a compressible medium surrounding the spacer shaft.
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Accused Products
Abstract
The present invention is a interspinous process device which maybe placed between adjacent spinous processes to limit the movement of the vertebrae. The device limits the range of motion of the spinous processes. The various embodiments include spacers which have a compressible medium that preferably provides progressive resistance.
485 Citations
107 Claims
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14. An implant adapted for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted on mid shaft;
said spacer formed in the shape of a spool and including;
(a) a spacer shaft, having a bore extending through;
(b) a first end having an outer edge and extending from the spacer shaft;
(c) a second end having an outer edge and extending from the spacer shaft; and
(d) a compressible medium surrounding the spacer shaft.
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20. An implant adapted for placing between spinous processes, the spacer comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted at said shaft;
said spacer including;
(a) a first outer shell having at least one support element, said support element having a bore extending therethrough;
(a) a second outer shell having at least one support element, with the support element of the first outer shell and the support element of the second outer shell, and with the bores of the first and second support elements having the shaft extending through, forming a hinge-type connection;
(c) a cavity located between the first outer shell and the second outer shell; and
(d) a compressible medium located into the cavity between the first and second outer shell. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 90, 91, 92, 93, 99, 100, 101, 102)
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26. An implant adapted for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted at said shaft;
said spacer including;
(a) an outer shell creating a cavity; and
(b) a compressible medium filling the cavity, having a bore extending through the compressible medium, with the shaft received through the bore.
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31-1. The implant as recited in claim 26, wherein when the thickness of the outer shell is 0.010′
- , the hardness of the compressible medium is approximately 70 durometer.
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33. An implant adapted for placing between spinous processes, the spacer comprising:
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a body with a shaft extending therefrom;
a spacer rotatably mounted on said shaft;
said spacer having;
(a) an outer shell;
(b) a support communicating with the outer shell and a cavity formed between the outer shell and the support , with a bore extending through the support, said shaft received in said bore;
(c) at least one protrusion extending from the support to restrict a deflection of the outer shell toward said support; and
(d) a compressible medium within the cavity formed between the outer shell and the support. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 94, 103)
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42. An implant adapted for placing between adjacent spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted on said shaft;
said spacer having;
(a) a support, having a bore extending through;
(b) an outer shell connected with the support, creating a cavity between the support and the outer shell; and
(c) a compressible medium within the cavity between the support and the outer shell, where the hardness of the compressible substance is graduated. - View Dependent Claims (43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 95, 96, 104, 105)
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49. An implant for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted on said shaft;
said spacer including;
(a) a spacer shaft having a bore extending therethrough;
(b) an outer shell located about the spacer;
(c) first and second openings located in the outer shell;
(d) a compressible medium located in the first and second openings, with the compressible medium adapted to contact the spinous processes with the implant placed between the spinous processes.
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54. An implant for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted on said shaft; and
said spacer including;
(a) a first outer shell with first and second supports extending therefrom, with each said first and second supports including a bore defined therein;
(b) a second outer shell with a third support extending therefrom, with the third support including a bore defined therein;
(c) the third support located between the first and second support with the bores, with the shaft received through the bores of the first, second, and third supports;
(d) a cavity located between the first and second outer shells; and
(e) a compressible medium located in the cavity. - View Dependent Claims (55, 56, 57, 58, 59)
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60. An implant for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer that is rotatably mounted on said shaft; and
said spacer including a compressible medium with a bore provided therethrough, with the shaft received in said bore, such that the spacer can rotate relative to said shaft. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 69, 70, 71, 72, 73, 97, 106)
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68. An implant adapted for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer rotatably mounted on the shaft; and
said spacer having;
(a) an outer shell;
(b) a support communicating with the outer shell and a cavity formed between the support and the outer shell, with a bore formed in the support and with the shaft received in said bore; and
(c) at lease one protrusion extending from the support to restrict a deflection of the outer shell toward the support.
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74. An implant adapted for placing between spinous processes, the implant comprising:
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a body with a shaft extending therefrom;
a spacer rotatably mounted on the shaft; and
said spacer having;
a support having a bore provided therethrough, with the shaft received in the bore;
an outer shell cantilevered from the support, the outer shell adapted to contact a spinous process. - View Dependent Claims (75, 76, 77, 78, 79, 80, 81, 82, 83, 84)
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85. An implant adapted to be positioned between spinous processes, the implant including:
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a first support defining a first saddle adapted to receive a spinous process;
a second support defining a second saddle adapted to receive another spinous process;
the first and second supports mated together to form an enclosed cavity;
a compressible medium located in the cavity. - View Dependent Claims (86, 87, 88, 89, 98, 107)
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Specification