Patent application number | Description | Published |
20100274080 | Remote Position Control For Surgical Apparatus - A system for performing a minimally invasive surgical procedure includes a cannula, a surgical instrument for use through the cannula, and a remote positioning system to adjust the relative position between the surgical instrument and the cannula. By allowing a physician to perform the minimally invasive surgical procedure at a distance from the patient, the remote positioning system minimizes the radiation exposure of the physician while still providing accurate control over the procedure. | 10-28-2010 |
20100274255 | Minimally Invasive Cement Delivery System Retainer - A system for performing a minimally invasive surgical procedure comprises a cannula, a bone filler material delivery nozzle for performing the procedure through the cannula, and a retainer for securing the delivery nozzle relative to the cannula. The retainer eliminates the need to manually stabilize and position the delivery nozzle during the procedure, thereby allowing the physician to perform the procedure outside of the fluoroscopic radiation field used to visualize the procedure location. The retainer can be attached to the cannula, and can provide either selective or constant clamping force onto the delivery nozzle. | 10-28-2010 |
20110024145 | SURGICAL APPARATUS WITH FORCE LIMITING CLUTCH - A force-limiting clutch for a surgical instrument includes a drive element and a transmission element. An actuator is coupled to the drive element, and a drive shaft is coupled to the transmission element for providing an output force. If the force input from the actuator to the clutch reaches a predetermined threshold, the force-limiting clutch “slips” and does not transfer the actuator force to the drive shaft to prevent excessive force/pressure output. Normally, drive features on the drive element engage with transmission features on the transmission element to transfer forces from the actuator to the drive shaft. When a threshold force is reached, the drive features slip past the transmission features. This clutch “breakpoint” determines the maximum loading that the surgical instrument can provide at its output. In various embodiments, multiple transmission features can be arranged in a serial manner, such that the force-limiting clutch provides multiple breakpoints. | 02-03-2011 |
20110028980 | HIGH PRESSURE SURGICAL SYSTEM - An instrument for performing a medical procedure includes a drive shafts a holding clutch, a drive clutch, and an actuator. The holding clutch only allows advancement of the drive shaft, while the drive clutch transfers an advancement force from the actuator to the drive shaft. The dual clutch system allows a lever to be used as the actuator so that a user can generate large actuation forces manually (and optionally remotely) without significant physical effort. This capability can beneficially improve the usability and effectiveness of percutaneous surgical systems, such as those for vertebroplasty or kyphoplasty. | 02-03-2011 |
20110270181 | Multi-Port Delivery System - A device for delivering material to multiple surgical target locations includes a pressure reservoir selectably coupled to two or more outlets. Coupling the pressure reservoir to a given one of the outlets and pressurizing the pressure reservoir causes flowable material (e.g., bone filler material) to be dispensed from that outlet. A diverter for selectably coupling the pressure reservoir one of the outlets can be configured to trigger a pressure release valve for the pressure reservoir upon switching, thereby preventing unexpected or uncontrolled material delivery from the new outlet in response to sudden high pressure exposure. | 11-03-2011 |
20120029296 | EXPANDABLE CANNULA ASSEMBLIES FOR USE IN PERCUTANEOUS SURGICAL PROCEDURES - In one form, an expandable cannula assembly for use in percutaneous surgical procedures includes an elongate body extending along a longitudinal axis between a first end and a second end. The elongate body includes a pair of elongate members that cooperate to define a working channel extending between a proximal end and a distal end and being expandable from a first, unexpanded configuration to a second, expanded configuration. The elongate members are displaceable away from one another along the longitudinal axis from the proximal end to the distal end of the working channel in order to expand the working channel from the first configuration to the second configuration. In one aspect, the elongate members engage with one another to lock the working channel in the second configuration and prevent movement of the elongate members toward one another. However, in other embodiments, different forms and applications are envisioned. | 02-02-2012 |
20120232601 | SURGICAL TOOL FOR ADJUSTING A SPINAL IMPLANT - A surgical instrument and/or method of using a surgical instrument during spinal surgery. The surgical instrument may find particular applicability to spinal implants for the intervertebral disc space that require relative rotation between parts in order to change the height of the implant. The instrument includes a knob that rotatable and selectively longitudinally moveable relative to a handle section. In a forward position, turning the knob turns a drive shaft that is coupled to the rotatable actuator of the implant, and causes the implant to expand or retract depending on the direction of rotation. In the rearward position, the drive shaft is retracted, and turning the knob turns a coupling shaft, distinct from the drive shaft, for decoupling the implant from the instrument. | 09-13-2012 |
20140192611 | BONE CEMENT MIXING AND DELIVERY SYSTEM WITH REDUCED FUME EXPOSURE - A system for bone cement includes a vial holder configured for receiving a vial and including a holding structure for maintaining the vial in the vial holder. The vial includes a monomer component for bone cement. A holder chamber is configured to receive and secure the vial holder. The vial holder is advanced toward a vial-breaking device for breaking the vial and releasing its contents into the holder chamber past the elastomeric seal. Once the vial holder is advanced further the elastomeric seal is deformed to form a seal and prevent fumes produced from escaping from the device. | 07-10-2014 |
20140269147 | BONE CEMENT MIXING AND DELIVERY SYSTEM WITH REDUCED FUME EXPOSURE - A device for mixing and containing fumes for a bone cement component including a base. The base includes an inner wall defines a chamber having a first sealable opening and a passageway. A handle extends between a proximal end and a distal end and includes a seal at the distal end. A plunger housing is configured for moveable disposal of the handle and includes a second sealable opening. The plunger housing is configured to contain a vial therein. The plunger housing is configured for engagement with the base. The plunger housing is configured to move within the passageway. A collapsible paddle attached to the handle between the proximal and distal end and configured to mix the bone cement. | 09-18-2014 |
20140309647 | Minimally Invasive Cement Delivery System Retainer - A system for performing a minimally invasive surgical procedure comprises a cannula, a bone filler material delivery nozzle for performing the procedure through the cannula, and a retainer for securing the delivery nozzle relative to the cannula. The retainer eliminates the need to manually stabilize and position the delivery nozzle during the procedure, thereby allowing the physician to perform the procedure outside of the fluoroscopic radiation field used to visualize the procedure location. The retainer can be attached to the cannula, and can provide either selective or constant clamping force onto the delivery nozzle. | 10-16-2014 |
20150018834 | MULTI-PORT DELIVERY SYSTEM - A device for delivering material to multiple surgical target locations includes a pressure reservoir selectably coupled to two or more outlets. Coupling the pressure reservoir to a given one of the outlets and pressurizing the pressure reservoir causes flowable material (e.g., bone filler material) to be dispensed from that outlet. A diverter for selectably coupling the pressure reservoir one of the outlets can be configured to trigger a pressure release valve for the pressure reservoir upon switching, thereby preventing unexpected or uncontrolled material delivery from the new outlet in response to sudden high pressure exposure. | 01-15-2015 |