Abstract: A bone cement delivery unit having a rigid support structure with a first portion configured to engage and retain a bone cement reservoir against its casing, a second portion supporting a transmission system and a third portion supporting and guiding a slidable push rod along the injection direction. The delivery system may include a control unit sliding the push rod opposite to the injection direction before stopping the push rod if the quantity of the bone cement pushed out of the reservoir has reached at least a predetermined minimum value, such as to eliminate residual flow. Also, the delivery system may include an adaptor including members electrically connected to the control unit, with the cement reservoir including a sensor for monitoring curing of the bone cement in electrical contact with the members of the adaptor.

Abstract: an orthopedic tube for delivering medical fluids, having a viscosity of at least 1 Pa.S and not to exceed 10000 Pa.S, into a bone cavity comprising an elongated hollow stem having a smooth stem outer wall. The elongated hollow stem has an external diameter sufficient to be inserted into a bone cavity formed in a bone. The elongated hollow stem has a proximal end and a distal end with the proximal end adapted to be in communication with a pressurized medical fluid injector; and the elongated hollow stem has an internal diameter sufficiently large to permit a path of least resistance to a flow of the cement from the injector. The distal end of the elongated stem is closed. There is at least a fenestration zone defined on the stem wall spaced from the distal end, and a plurality of distinct ports distributed in a pattern in the fenestration zone.

Abstract: A bone cement delivery unit having a rigid support structure with a first portion configured to engage and retain a bone cement reservoir against its casing, a second portion supporting a transmission system and a third portion supporting and guiding a slidable push rod along the injection direction. The delivery system may include a control unit sliding the push rod opposite to the injection direction before stopping the push rod if the quantity of the bone cement pushed out of the reservoir has reached at least a predetermined minimum value, such as to eliminate residual flow. Also, the delivery system may include an adaptor including members electrically connected to the control unit, with the cement reservoir including a sensor for monitoring curing of the bone cement in electrical contact with the members of the adaptor.

Abstract: An orthopedic kit includes a hollow cannula having a distal end including spiral thread for engaging a bone, an elongated probe extending through the hollow cannula, and a metering device for moving the probe such that a distal end of the probe is moved away from a proximal end of the hollow cannula to into the bone to form a channel in the bone whereby the metering device measures a force applied by the distal end of the probe and thus the mechanical strengh of the bone. A cement injector also forms part of the kit which passes though the hollow canula beyond the distal end of the cannula into the channel to inject cement into the surrounding bone structure. A pedicle screw may also form part of the kit to be placed in the channel before the cement is cured.