A device for loading bone graft material into a delivery tube is provided herein. The device includes a housing defining a reservoir for receiving bone graft, a magazine at least partially disposed within the housing, and an actuation member coupled to the housing for discharging the bone graft material into the delivery tube. The magazine defines a first chamber and a second chamber and is moveable between a first position in which the first chamber is in communication with the reservoir and a second position in which the second chamber is in communication with the reservoir. The actuation member includes a plunger configured to slide into the first chamber and the second chamber to discharge bone graft material, when bone graft material is contained therein, into the delivery tube. Methods of loading bone graft material are also provided.

The present invention provides a negative pressure guided bone cement injection systme comprising a negative pressure system, comprising a negative pressure introduction device, a pushing system for implant bone cement to the target area, a control systmem for regulating the negative pressure system and the pushing system, and at least one sensing device disposed at any position of the negative pressure system, which can sense at least one environmental paramtere for observing the physiological condition of a patient's spinal vertebral body can be monitored immediately, and the result is actively or passively sent back to the system or the operator for adjusting the injection parameters.

A percutaneous minimally-invasive procedure to prevent a potential fracture in an osteoporotic vertebra of an osteoporotic patient who has no history of vertebral fracture is provided by minimally-invasively injecting a non-dispersive, biocompatible and resorbable calcium-based cement paste into the osteoporotic vertebral body.

A curved inflatable bone tamp includes an outer shaft defining a passageway. An inner shaft is positioned within the passageway. The inner shaft extends between opposite first and second end. The inner shaft defines a lumen. The inner shaft is curved between the first end and the second end. A first leg of a balloon is coupled to the outer shaft and a second leg of the balloon is coupled to the inner shaft such that a material can flow through the lumen and into the balloon to inflate the balloon. The balloon includes a wall having a variable thickness between the legs when the balloon is uninflated and a uniform thickness between the legs when the balloon is inflated. Kits, systems and methods are disclosed.

A device for mixing and dispensing bone material is provided. The device comprises a tubular member having an interior surface configured to receive bone material and a fluid to mix the bone material disposed within the tubular member. The tubular member is flexible and has a proximal opening configured to slidably receive a plunger, and a distal opening configured to dispense a mixed bone material from the interior surface of the tubular member. The plunger is less flexible than the tubular member. Methods of mixing and dispensing bone material are also provided.

In the use of devices and methods for measuring applied pressure on an article, such as a patella construct during a surgical procedure, a clamp is provided with arms, an optional external spring, an optional internal spring and a torque knob for applying constant and measurable pressure to the article. Embodiments of the clamp include a spring rod engaged with the torque knob for assisting in applying and retaining desired pressure. Spike elements and a bushing insert are secured to the ends of the arms for retaining the article in place during use. The elements are advantageously assembled and disassembled to facilitate thorough and quick cleaning.

The risk of bone cement extravasation can be reduced by delivering a calcium-dependent polymerizing sealant into a bone structure prior to delivery of bone cement into that structure. The polymerization of the sealant in response to the calcium within the bone structure can fill cracks and any other potential cement leakage paths, thereby minimizing the potential for subsequent extravasation. The benefits of the use of a calcium-dependent polymerizing sealant can be provided in any procedure involving the use of bone cement, such as spinal fixation, vertebroplasty, and kyphoplasty, among others.

The invention relates to a glenoid (shoulder socket) implant prosthesis, a humeral implant prosthesis, devices for implanting glenoid and humeral implant prostheses, and less invasive methods of their use for the treatment of an injured or damaged shoulder.

A curved inflatable bone tamp includes an outer shaft defining a passageway. An inner shaft is positioned within the passageway. The inner shaft extends between opposite first and second end. The inner shaft defines a lumen. The inner shaft is curved between the first end and the second end. A first leg of a balloon is coupled to the outer shaft and a second leg of the balloon is coupled to the inner shaft such that a material can flow through the lumen and into the balloon to inflate the balloon. The balloon includes a wall having a variable thickness between the legs when the balloon is uninflated and a uniform thickness between the legs when the balloon is inflated. Kits, systems and methods are disclosed.

Systems and methods for treating conditions and diseases of the spine are disclosed herein. A device includes a balloon catheter comprising at least one inner lumen incorporated within an elongated shaft; a distal end having an inner balloon positioned inside and completely surrounded by an outer balloon; and a proximal end having an adapter for passage of at least one of an inflation fluid or a medical instrument; and an optical fiber comprising an outer diameter sized to pass through the inner lumen of the elongated shaft; a nonlinear light-emitting portion of a given length, wherein a portion of a cladding material from the nonlinear light-emitting portion has been removed so that light energy may be emitted along the length of the nonlinear light-emitting portion; and a linear elongated portion for guiding light towards the nonlinear light-emitting portion.