SURGICAL INSTRUMENT AND METHOD OF USE FOR INSERTING AN IMPLANT BETWEEN TWO BONES
First Claim
1. A surgical instrument for inserting an implant between two bones, the surgical instrument comprising:
- a handle assembly; and
an elongate member having a first end and a second end, and a longitudinal axis extending there between, the elongate member being moveably connected to an implant engagement assembly, the implant engagement assembly being at a distal end of the surgical instrument and being configured to hold the implant;
wherein upon movement of the elongate member relative to the implant engagement assembly, the implant engagement assembly adjusts the implant for insertion between the two bones.
3 Assignments
0 Petitions
Accused Products
Abstract
The surgical instrument includes a handle assembly and an elongate body that has first and second ends with the first end being located adjacent to the handle assembly and the second end being moveably connected to an implant engagement assembly. The surgical instrument also has a length control mechanism that includes a gripping portion, a drive shaft and a gear assembly. The surgical instrument further has a locking mechanism that includes a gripping portion, a connecting rod and a coupling end. The length control mechanism functions to adjust the overall length of an implant that is held by the implant engagement assembly before being implanted in vivo. The locking mechanism operates to secure the overall length of the implant following final length adjustment and implantation. A surgical method for using the surgical instrument, a method of fabrication and a spinal implant insertion kit is also disclosed.
184 Citations
34 Claims
-
1. A surgical instrument for inserting an implant between two bones, the surgical instrument comprising:
-
a handle assembly; and an elongate member having a first end and a second end, and a longitudinal axis extending there between, the elongate member being moveably connected to an implant engagement assembly, the implant engagement assembly being at a distal end of the surgical instrument and being configured to hold the implant; wherein upon movement of the elongate member relative to the implant engagement assembly, the implant engagement assembly adjusts the implant for insertion between the two bones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A surgical instrument for inserting a spinal implant between two vertebrae, the surgical instrument comprising:
-
a handle assembly; an elongate member having a first end and a second end, and a longitudinal axis extending therebetween, the first end being adjacent to the handle assembly and the second end being rotationably connected to a spinal implant engagement assembly, the spinal implant engagement assembly being at a distal end of the surgical instrument; a length control mechanism for adjusting the overall length of the spinal implant when the spinal implant has been placed between two vertebrae, the length control mechanism comprising a gripping portion, a gear assembly and a drive shaft positioned intermediate the gripping portion and gear assembly, the drive shaft extends through a first opening within the handle assembly and is oriented substantially parallel to the longitudinal axis of the elongate member; and a first locking mechanism for securing the overall length of the spinal implant after the spinal implant has been placed between the two vertebrae, the first locking mechanism comprises a gripping portion proximate to the proximal end of the surgical instrument, a coupling end and a connecting rod positioned intermediate the gripping portion and the coupling end, the connecting rod extends through a second opening in the handle assembly and is oriented substantially parallel to the longitudinal axis of the elongate member. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A surgical method of inserting an implant between two bones, the method comprising:
-
surgically creating an opening on the skin of a patient, wherein the opening is proximate the location of the two bones; obtaining a surgical instrument comprising; a handle assembly; an elongate member having a first end and a second end, and a longitudinal axis extending therebetween, the first end being adjacent to the handle assembly and the second end being moveably connected to an implant engagement assembly, the implant engagement assembly being at a distal end of the surgical instrument; a length control mechanism for adjusting the length of the implant when the implant has been placed between two bones, the length control mechanism comprising a gripping portion, a gear assembly and a drive shaft positioned intermediate the gripping portion and gear assembly, the drive shaft extends through a first opening within the handle assembly and is oriented substantially parallel to the longitudinal axis of the elongate member; and at least one locking mechanism for securing the overall length of the implant after the implant has been placed between the two bones, the at least one locking mechanism having a gripping portion proximate to the proximal end of the surgical instrument, a coupling end and a connecting rod positioned intermediate the gripping portion and the coupling end, the connecting rod extending through a second opening in the handle assembly and is oriented substantially parallel to the longitudinal axis of the elongate member. coupling the implant to the implant engagement assembly; inserting the surgical instrument and coupled implant into the opening; positioning the implant into a space between the two bones; extending the implant to an overall length and causing the implant to contact and apply a force to the two bones to maintain the space between the two bones; and fixing the overall length of the inserted implant. - View Dependent Claims (28, 29)
-
-
30. A method of fabricating a surgical instrument for inserting an implant between two bones, the method comprising:
-
providing a handle assembly; and providing an elongate member having a first end and a second end, and a longitudinal axis extending there between, the first end being positioned adjacent handle assembly and the second end being moveably connected to an implant engagement assembly, the implant engagement assembly being at a distal end of the surgical instrument; wherein upon movement of the elongate member relative to the handle assembly and implant engagement assembly, the implant engagement assembly couples the implant for insertion between the two bones. - View Dependent Claims (31, 32, 33)
-
-
34. A spinal implant insertion kit, the kit comprising:
-
a spinal implant for placement between two vertebrae; and a surgical instrument comprising; a handle assembly; an elongate member having a first end and a second end, and a longitudinal axis extending therebetween, the first end being adjacent to the handle assembly and the second end being moveably connected to a spinal implant engagement assembly, the spinal implant engagement assembly being at a distal end of the surgical instrument; a length control mechanism for adjusting the length of the spinal implant when the spinal implant has been placed between the two vertebrae, the length control mechanism comprising a gripping portion, a gear assembly and a drive shaft positioned intermediate the gripping portion and gear assembly, the drive shaft extends through a first opening within the handle assembly and is oriented substantially parallel to the longitudinal axis of the elongate member; and at least one locking mechanism for securing the overall length of the spinal implant after the spinal implant has been placed between the two bones, the at least one locking mechanism having a gripping portion proximate to the proximal end of the surgical instrument, a coupling end and a connecting rod positioned intermediate the gripping portion and the coupling end, the connecting rod extending through a second opening in the handle assembly and is oriented substantially parallel to the longitudinal axis of the elongate member.
-
Specification