A dispensing system includes a device having a body extending along a longitudinal axis between opposite proximal and distal ends. The body includes a proximal chamber, a distal chamber and a wall between the chambers. The body includes a first port in communication with the proximal chamber and a second port in communication with the distal chamber. A shaft is movably positioned within the body. The shaft extending through the wall and comprising a proximal plunger positioned within the proximal chamber and a distal plunger positioned within the distal chamber. Wherein pressure introduced through an opening in the proximal end moves the shaft such that the proximal plunger moves a material within the proximal chamber out of the first port and the distal plunger moves a material within the distal chamber out of the second port. Kits and methods of use are disclosed.

Methods of employing bone defect filling, e.g., orthopedic cements, such as calcium phosphate cements and the like, are provided. A feature of the subject methods is that vibration is employed in conjunction with the use of the cement, e.g., in preparation of the cement, in preparation of the target site, in delivery of the cement to the target site, and/or following delivery of the cement to the target site. Also provided are devices, systems and kits that find use in practicing the subject methods. The subject methods, devices and systems find use in a variety of different applications.

Prostheses are described for stabilizing dysfunctional sacroiliac (SI) joints. The prostheses are sized and configured to be press-fit into surgically created pilot SI joint openings in dysfunctional SI joint structures. The prostheses have an integral structure with opposed elongated sections connected by a bridge section. The elongated sections, in some instances, have an unequal length.

A technique for harvesting bone graft material for spinal and other fusion surgeries. In the disclosed embodiment, a bone cutting blade is placed in a disc space between two vertebrae to be fused. The blade cuts into the vertebrae and forms solid segments of autologous bone inside each vertebra. Each bone segment is urged out of its associated vertebra until a first portion of the segment enters the opposite vertebra, an intermediate portion spans the disc space, and a second portion remains in the associated vertebra. Each segment thus forms a strut graft to promote a healthy and permanent fusion. In another embodiment, a wire is placed in the disc space and rotated to cut grooves in the vertebrae, causing a slurry of morselized cortical and cancellous bone to ooze into a cage that is placed in the disc space. The slurry heals to fuse the vertebrae solidly and permanently.

A discharge device (1) comprising a housing (200), a container insert (300) rotatably arranged therein and a piston. A lateral cutout (205) is formed in one housing wall (204), and a lateral container opening (303) is formed in one container wall (304). In order to prevent the compound from being compressed as the compound is discharged, the lateral container opening extends continuously as far as the distal container end (302) without a region of the container wall adjoining the lateral container opening in the distal direction along the longitudinal axis. In order to make it easier to put in the compound, the wall thickness of the housing wall decreases continuously toward the lateral cutout (205). In order to prevent clogging of the piston, the cross section of the container insert widens continuously in the distal direction.

A spine stabilization device having an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra. The device further includes a fixation device to be inserted after placement of the interbody spacer, the fixation device having a support portion securing the interbody spacer against escaping from between the vertebral bodies into a ventral direction. The support portion rests against a portion of an anterior surface of the interbody spacer, and includes an anchor. The anchor has an anchoring material portion that is inserted, in a liquid state, into cancellous bone tissue of at least one of the vertebral bodies of the upper and lower vertebra, to thereby infiltrate the cancellous bone tissue, and to harden thereafter so as to fix the support portion to the vertebral body.

A bone fusion system including a collection vessel, an abrading and harvesting device, tubing and a probe. The abrading and harvesting device includes a needle portion and a sharpened tip. The needle portion has a central bore extending therethrough. The needle portion has a distal end. The sharpened tip is attached to the distal end of the needle portion. The tubing is operably connecting the collection vessel and the abrading and harvesting device. The probe has a threaded portion and a tip portion at a distal end of the threaded portion. The threaded portion has a thread on an outer surface thereof. The tip portion is unsharpened and does not have a thread on an outer surface thereof. The probe is extendible through the central bore.

A system for delivering bone graft material during spinal interbody fusion comprises an interbody fusion device implanted in a spinal intradiscal space. The device has a distal end, a proximal end, opposing spaced side walls and opposing top and bottom surfaces defining a hollow interior A channel extends through the proximal end in communication with the hollow interior. An elongate guide pin is releasably attached to the device proximal end. An elongate cannula has a first lumen extending therethrough, the cannula including a mating feature at a distal end releasably secured to the device to substantially align the first lumen with the device channel. The cannula includes an axially offset receiving member receiving the guide pin and an axially spaced retention member securing the cannula to the guide pin and the device. A tamp advances graft material in the first lumen into the device through the channel.

The present invention includes a novel procedure and corresponding medical devices for a Percutaneous Posterior Lumbar Interbody Fusion (PePLIF). In PePLIF, the surgeon performs the entire operation percutaneously without the use of a microscope, endoscope, or magnifying loupes. An adjustable retractor system is disclosed that enables the surgeon to percutaneously perform the surgery through accessing the facet joint (and later disc space) that was created by said retractor system. This retractor system provides the surgeon a safe area to work and operate without fear of damaging nerves, blood vessels, or other tissue. An expanding trial may be inserted into and removed from the disc space through the interior of the retractor system to determine the proper size for the expandable cage. The retractor system also enables the expandable cage to be inserted into the disc space.

An implant delivery device may include an implant holding portion proximate the distal end, the implant holding portion being configured to retain a sheet-like implant during implantation of the implant. In addition, the implant holding portion may be configured to receive the implant with a fixed implant supporting flange member configured to support the implant on one side, and a movable implant supporting flange member. The movable implant supporting flange member may be configured to be slidable between a distal position and a proximal position, wherein, in the distal position, the movable implant supporting flange member and secures the implant against the fixed implant supporting flange member, and in the proximal position, the movable implant supporting flange member is withdrawn from the distal end of the implant delivery device, thus enabling release of the implant.