Abstract: Surgical devices permitting a surgeon to access repeatedly tissue at a particular surgical site in a patient to perform multiple surgeries over time. The devices have two substantially planar and parallel leaves that are sterile, nonresorbable, and biocompatible. Each leaf forms a continuous structure and defines the entire longitudinal length of the device to accommodate the size and location of the surgical site. A base member is located in situ and adjacent the surgical site. An anchoring surface secures the device to the tissue of the patient at the surgical site. The leaves have a conjoined portion such that a manual force is required to separate the leaves, thereby expeditiously creating a pathway through which access to the tissue at the surgical site is realized with minimal tissue dissection, and the proximal ends of the leaves are not conjoined to facilitate separation of the leaves and creation of the pathway.

Abstract: A method for reducing the occurrence of new post-operative fractures in vertebrae of a patient's spine after a vertebroplasty procedure performed to stabilize a fracture in a vertebra of a patient comprising the steps of performing a vertebroplasty procedure to stabilize a fracture in a vertebra of the patient, wherein the vertebroplasty procedure comprises the step of injecting a material into the fractured vertebra, wherein the material is formed by mixing together a first paste and a second paste, wherein the first paste comprises at least one of a polymerizable monomer and a filler, and wherein the second paste comprises at least one of a polymerizable monomer and a filler.

Abstract: The invention relates to devices and kits for the controlled delivery of viscous, multi component compositions.

Abstract: Instrument for creating voids and channels in bone; and for obtaining samples of bone tissue. The instruments are suitable for reducing fractures in bone and for compacting the bone to create a barrier for leakage upon material injection. The instruments may also be used for bone biopsy and for obtaining samples of bone tissue. Methods for using these instruments are also disclosed.

Abstract: A method for reducing the occurrence of new post-operative fractures in vertebrae of a patient's spine after a vertebroplasty procedure performed to stabilize a fracture in a vertebra of a patient comprising the steps of performing a vertebroplasty procedure to stabilize a fracture in a vertebra of the patient, wherein the vertebroplasty procedure comprises the step of injecting a material into the fractured vertebra, wherein the material is formed by mixing together a first paste and a second paste, wherein the first paste comprises at least one of a polymerizable monomer and a filler, and wherein the second paste comprises at least one of a polymerizable monomer and a filler.

Abstract: The invention relates to devices and kits for the controlled delivery of viscous, multi component compositions.

Abstract: Novel kits are provided for the delivery of restorative or injectable compositions into an intraosseous space or surgical defect comprising cannulae for accessing an intraosseous space, mandarins insertable into the cannulae and movable therein, one or more catheters and a system for the delivery of aliquots of restorative compositions into the space via the catheters.

Abstract: Devices for facilitating access to a surgical situs, as well as methods of their use, are described.

Abstract: Novel kits are provided for the delivery of restorative or injectable compositions into an intraosseous space or surgical defect comprising cannulae for accessing an intraosseous space, mandarins insertable into the cannulae and movable therein, one or more catheters and a system for the delivery of aliquots of restorative compositions into the space via the catheters.

Abstract: A spinal disc prosthesis (10) to replace a damaged spinal disc in a spinal column (16) of a human, includes an elastomeric core (200) having upper and lower surfaces (202, 212) which are parallel to each other. An upper rigid plate (20) has opposed first and second surfaces (42, 52). The first surface (42) is affixed to the upper surface (202) of the elastomeric core. The second surface (52) is inclined relative to the first surface (42). A lower rigid plate (120) has opposed third and fourth surfaces (142, 152). The third surface (142) is affixed to the lower surface (212) of the elastomeric core (200) and extends parallel to the first surface (42). The fourth surface (152) is inclined relative to the third surface (142). The second and fourth surfaces (52, 152) are inclined relative to each other.

Abstract: Novel kits are provided for the delivery of restorative compositions into an intraosseous space or surgical defect comprising cannulae for accessing an intraosseous space, mandarins insertable into the cannulae and movable therein, catheters and a system for the delivery of aliquots of restorative compositions into the space via the catheters.

Abstract: A spinal disc prosthesis (10) to replace a damaged spinal disc in a spinal column (16) of a human, includes an elastomeric core (200) having upper and lower surfaces (202, 212) which are parallel to each other. An upper rigid plate (20) has opposed first and second surfaces (42, 52). The first surface (42) is affixed to the upper surface (202) of the elastomeric core. The second surface (52) is inclined relative to the first surface (42). A lower rigid plate (120) has opposed third and fourth surfaces (142, 152). The third surface (142) is affixed to the lower surface (212) of the elastomeric core (200) and extends parallel to the first surface (42). The fourth surface (152) is inclined relative to the third surface (142). The second and fourth surfaces (52, 152) are inclined relative to each other.

Abstract: Novel kits are provided for the delivery of restorative compositions into an intraosseous space or surgical defect comprising cannulae for accessing an intraosseous space, mandarins insertable into the cannulae and movable therein, catheters and a system for the delivery of aliquots of restorative compositions into the space via the catheters.

Abstract: Novel methods for the delivery of biocompatible material to intraosseous spaces are provided comprising accessing a space, placing a first aliquot of restorative material into the space, and after a period of time sufficient for first aliquot to set, placing a second aliquot into the space.

Abstract: A spinal disc prosthesis (10) to replace a damaged spinal disc in a spinal column (16) of a human, includes an elastomeric core (200) having upper and lower surfaces (202, 212) which are parallel to each other. An upper rigid plate (20) has opposed first and second surfaces (42, 52). The first surface (42) is affixed to the upper surface (202) of the elastomeric core. The second surface (52) is inclined relative to the first surface (42). A lower rigid plate (120) has opposed third and fourth surfaces (142, 152). The third surface (142) is affixed to the lower surface (212) of the elastomeric core (200) and extends parallel to the first surface (42). The fourth surface (152) is inclined relative to the third surface (142). The second and fourth surfaces (52, 152) are inclined relative to each other.

Abstract: A spinal disc prosthesis (10) to replace a damaged spinal disc in a spinal column (16) of a human, includes an elastomeric core (200) having upper and lower surfaces (202, 212) which are parallel to each other. An upper rigid plate (20) has opposed first and second surfaces (42, 52). The first surface (42) is affixed to the upper surface (202) of the elastomeric core. The second surface (52) is inclined relative to the first surface (42). A lower rigid plate (120) has opposed third and fourth surfaces (142, 152). The third surface (142) is affixed to the lower surface (212) of the elastomeric core (200) and extends parallel to the first surface (42). The fourth surface (152) is inclined relative to the third surface (142). The second and fourth surfaces (52, 152) are inclined relative to each other.

Abstract: A spinal disc prosthesis (10) to replace a damaged spinal disc in a spinal column (16) of a human, includes an elastomeric core (200) having upper and lower surfaces (202, 212) which are parallel to each other. An upper rigid plate (20) has opposed first and second surfaces (42, 52). The first surface (42) is affixed to the upper surface (202) of the elastomeric core. The second surface (52) is inclined relative to the first surface (42). A lower rigid plate (120) has opposed third and fourth surfaces (142, 152). The third surface (142) is affixed to the lower surface (212) of the elastomeric core (200) and extends parallel to the first surface (42). The fourth surface (152) is inclined relative to the third surface (142). The second and fourth surfaces (52, 152) are inclined relative to each other.