A handheld surgical instrument includes a motor that transmits rotational movement to a drill bit of the handheld surgical instrument. The drill bit extends through a depth measurement module with a depth measurement extension, and a cannula, which extends forward from the drill to measure bore depth. The depth measurement extension is moveably mounted to the drill so as to extend into the rotor bore of the motor. As the drill advances forward, the depth measurement extension remains static. As a result of the advancement of the drill, the rotor extends over the proximal end of the depth measurement extension. A controller is configured to determine a breakthrough time and a breakthrough displacement of the drill bit based on displacement data and derived signals. The controller is further configured to determine a proper length of a screw to be used in a fixation surgical procedure based on the displacement data.

A surgical cutting tool includes an outer tube extending longitudinally between proximal and distal ends. The outer tube includes an inner surface defining a lumen therethrough. The surgical cutting tool further includes a flexible driveshaft including an inner tube rotatably disposed in the lumen and extending in a longitudinal direction. The driveshaft may include at least two torsion sections spaced from one another longitudinally along the inner tube. The torsion sections each have at least one channel extending through the inner tube. The driveshaft further includes a bearing section disposed longitudinally between the torsion sections. The channels are configured to collapse under rotational load in response to transmission of torque as the driveshaft rotates such that the torsion sections are spaced apart from the inner surface of the outer tube to a greater extent than the bearing section for reducing friction between the inner tube and the outer tube.

A surgical bone cutting device, including a handle configured to facilitate operation and control of said device by an operator, and an elongated hollow member extending from the handle, the hollow member having a proximal end and a distal end; wherein the hollow member includes an opening at the distal end thereof and a rotatable cutting element extending through the opening, and wherein the hollow member includes a first bend at the proximal end thereof, such that the part of the hollow member distal to the proximal bend is offset a central axis of the hand.

A device includes an outer sleeve of flexible material forming an outer conduit extending longitudinally therethrough for the insertion of a bone treatment device (“BTD”) to target sites within a living body. A distal opening of the outer conduit is open so that, when the outer sleeve is in a desired position within the body, BTD is inserted through the outer conduit exits the outer sleeve adjacent to a target portion of a bone. The device also includes an inner sleeve received within the outer sleeve and defining an inner conduit within the outer conduit to form a protective covering. The inner sleeve is split longitudinally. Portions of the inner sleeve on opposite sides of the split are coupled to one another so that a diameter of the inner conduit is adjustable in response to forces exerted thereon by one of BTD and tissues surrounding the outer sleeve.

A discectomy tool comprising: a) a cannula having an outer surface having a longitudinal bore therein, a proximal end and a distal end; b) a steering wire disposed in the longitudinal bore; c) a flexible, hollow transmission shaft disposed in the cannula, the shaft having a throughbore, a proximal end portion, a distal end portion and an outer surface having a thread extending therefrom; d) an irrigation source fluidly connected to the throughbore; e) a cutting tip attached to the distal end portion of the transmission shaft.

The invention resides in the field of medical technology. It relates in particular to a sonotrode suitable for use with an ultrasonic surgical instrument. The invention refers further to an ultrasonic surgical instrument for cutting or punching bones, including such a sonotrode as well as a method for manufacturing the sonotrode of the invention.

Adapters for surgical drilling systems, and methods of use, are provided for performing surgical procedures, such as surgical drilling into bony structures, while guided by a conductivity sensing system. The adapters may be configured to be coupled to a surgical drilling tool such as a conventional surgical drill and a drill bit having conductivity sensing capabilities, or a surgical hand tool having conductivity sensing capabilities. The adapters further include a controller configured to receive one or more signal indicative of measured electrical conductivity and/or penetration depth measurement, detect a condition associated with a change of measured electrical conductivity based on the signal, and arrest advancement of the surgical drilling tool responsive to detection of the condition.

A system for intraosseous access can include an elongated instrument that is positioned within a cannula portion of a cannula assembly. The system can include a shield that is coupled with both the elongated instrument and the cannula assembly when in an unlocked state. The shield can permit proximal movement of the elongated instrument relative thereto when in the unlocked state. The shield can automatically transition to a locked state to attach to a distal end of the elongated instrument to restrict access to a distal tip of the elongated instrument.

The present disclosure relates to a lateral sleeve pipe drill and a operating method, belong to the field of surgical instrument technologies, and solves the problems that a bone passage cannot be effectively corrected and is liable to be corrected excessively, and correction is time-consuming and damages important functional bone tissue morphology. The lateral sleeve pipe drill is of a hollow cylindrical shape and includes a first end and a second end. An outer wall of the first end is provided with a correction portion for correcting the bone passage. The first end is arranged in a human body and is of a particular shape adapted to different surgical methods, a surgical approach direction, and a human body internal structure.

The present technology relates to surgical drilling devices, and associated systems and methods. In some embodiments, a surgical drilling device includes a drill bit and a retraction mechanism. The retraction mechanism can include a housing, a slide assembly within the housing and operably coupled to the drill bit, a spring element engaging the slide assembly, and a locking element coupled to the slide assembly. The locking element can be movable between a locked configuration and an unlocked configuration based on an amount of force applied by the drill bit to the slide assembly. When in the locked configuration, the locking element can secure the slide assembly to the housing. When in the unlocked configuration, the locking element can allow the spring element to displace the slide assembly proximally within the housing to retract the drill bit.