A system for harvesting bone material from a bone may include a rotary cutter defining a rotary cutter longitudinal axis extending between a rotary cutter proximal end and a rotary cutter distal end. The rotary cutter may have a drive shaft configured to receive input torque, and an osteochondral cutter configured to cut the tissue and receive the tissue material in response to rotation of the osteochondral cutter under pressure against the tissue. The system may further include a bone port defining a bone port longitudinal axis extending between a bone port proximal end and a bone port distal end. The bone port may have a bone port cannulation sized to closely fit over the osteochondral cutter. At least one of the bone port proximal end and the bone port distal end may be securable to the tissue. A stratiform tissue graft may be delivered through the bone port.

A bone screw insertion device, comprises an outer sleeve extending from a proximal end to a distal end and including a channel extending therethrough and a driving member extending longitudinally through the channel of the outer sleeve from a proximal end to a distal end configured to engage a driving recess of a bone screw, the outer sleeve movable relative to the driving member between a first position in which the distal end of the outer sleeve extends over and covers a proximal portion of a bone screw engaged with the driving member, to a second position in which the distal end of the outer sleeve is longitudinally aligned with a proximal end of a bone screw engaged with the driving member.

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.

Disclosed herein are endoscope assemblies, and more particularly endoscopes with a working channel for use in hysteroscopy, and methods of use thereof. Devices and systems related to an integrated hysteroscopic treatment system including an endoscopic viewing system, a fluid management system, a resecting device and a controller for operating all the systems. Also disclosed are integrated hysteroscopic treatment systems that include an endoscopic viewing system, a fluid management system, a resecting device and a controller for operating all the systems.

Systems and methods are provided for measuring depth, position, and/or angle of a cannula in a medical drug delivery device. In particular, a drug delivery device having a cannula is positioned adjacent to tissue, a voltage pulse is provided to the cannula, a charge is measured at an electrode in the drug delivery device, and the depth of penetration of the cannula is determined based in part on the charge at the first electrode. Systems and methods described herein can be used to determine subcutaneous insertion depth in a wearable bolus injector. In some implementations, insertion depth determination is achieved through capacitive sensors which measure needle depth in a drug delivery device.

A drill assembly for creating a reverse counterbore bone tunnel while increasing bone preservation. The drill assembly including a housing having an actuation mechanism and a cannulated shaft connected to the actuation mechanism. The drill assembly also includes a rigid rod extending through the cannulated shaft. Engaging the actuation mechanism moves the cannulated shaft along the rigid rod. The drill assembly additionally includes a distal tip connected to the cannulated shaft and the rigid rod. Proximal movement of the cannulated shaft along the rigid rod causes the distal tip to rotate from a first configuration to a second configuration. In the second configuration, the distal tip extends at an angle relative to the cannulated shaft.

Disclosed herein is a system and method directed to detecting placement of a medical device within a patient body, where the system includes a medical device including an optical fiber having core fibers, each of the one or more core fibers including a plurality of sensors each configured to (i) reflect a light signal having an altered characteristic due to strain experienced by the optical fiber. The system further includes logic configured to cause operations of providing an incident light signal to the optical fiber, receiving reflected light signals of different spectral widths of the incident light from the sensors, processing the reflected light signals to detect fluctuations of a portion of the optical fiber, and determining a location of the portion of the optical fiber based on the detected fluctuations. In some instances, the detected fluctuations are caused by anatomical movement of the patient body.

An assembly for retracting soft tissue in a surgical incision is provided, the assembly including a supporting member having first and second ends; a retractor blade having a first distal end and a second proximal end retained at the first end of the support member; a retaining arm which co-operates with the support member and receives and supports a clamping assembly; and an adjusting assembly which engages the support member and allows the clamping assembly to advance and retract relative to the retractor blade.

Various implementations include a device for locating a position in a body. The device includes a first body portion. The first body portion has a first longitudinal axis. The device includes a second body portion. The second body portion is slidably coupled to the first body portion. The second body portion has a second longitudinal axis. The device includes a first set of markers disposed on the first body portion for measuring along the first longitudinal axis. The first set of markers includes at least two radiopaque markers. The device also includes a second set of markers disposed on the second body portion for measuring along the second longitudinal axis. The second set of markers includes at least two radiopaque markers. The first body portion is slidable along the second longitudinal axis. The second body portion is slidable along the first longitudinal axis.

The present disclosure provides an apparatus comprising a wire having a first end and a second end opposite the first end. A first portion of the wire including the first end comprises a malleable region that is configured to remain deformed after bending, and a second portion of the wire including the second end comprises a superelastic region that is configured to return to a straight configuration after bending.