A surgical access port and assembly are disclosed for providing access for a medical instrument into an intracorporeal cavity of a patient undergoing surgery. The access port comprises a cannula and a first passage which extends along the cannula and along which a medical instrument is arranged to pass, the passage comprising a first entrance portion disposed at a proximal region the of the cannula and a first exit portion disposed at a distal region of the cannula. The cannula further comprises a second passage which extends along the cannula and along which an electrode is arranged to pass, the second passage comprising a second entrance portion disposed at a proximal region of the cannula and a second exit portion disposed at a distal region of the cannula. The first exit portion of the first passage and the second exit portion of the second passage diverge along the cannula in a direction which is from the proximal end to the distal end of the cannula, to suitably locate the electrode with respect to a medical instrument.

A sleeve insertion assembly includes a sleeve inserter defining an inner chamber and having a distal end and a proximal end opposite the distal end, a sleeve receivable within the inner chamber, and a blade guard receivable within the sleeve and having a cylindrical body that defines an interior and an open end. The open end is sized to receive jaw members of an end effector into the interior but prevent the end effector from entering the interior, and the blade guard is forced out of the sleeve when the sleeve is installed on the end effector.

A microneedling machine for tattooing is disclosed, which has a substantially radially symmetric exterior shape and may include subcomponents that can be disassembled and sterilized. The machine may include an adjustment mechanism for configuring the impact of the microneedle into skin. The machine may also include a motion translation device adapted to change rotational motion of the drive shaft or motor into linear reciprocating motion of the microneedle.

A method of forming an access opening through a psoas muscle to a patient's spine includes laterally inserting a stimulating dilator into the psoas muscle. The stimulating dilator has a stimulation channel formed in an outer surface thereof. An electrical pulse is transmitted into the stimulating dilator to locate a position of a nerve in the patient's psoas muscle. The stimulating dilator is laterally inserted through the psoas muscle and toward the patient's spine in a way that avoids the nerve. A stimulating probe is inserted into the stimulation channel along the outer surface of the stimulating dilator while transmitting an electrical pulse into the stimulating probe to verify the position of the nerve.

Drivers and drive systems (e.g., off-axis drive systems, pneumatic motors, multi-gear drive systems, and/or the like), and kits comprising drivers with drive systems, such as those, for example, configured to move a drive shaft.

An optically transparent actuator apparatus is provided that includes an optically transparent bi-stable member including an optically transparent liquid crystalline polymer layer. The bi-stable member is structured to move from a first state to a second state in response to a first stimulus and from the second state to the first state in response to a second stimulus. Also, a display apparatus includes a plate member and an actuator assembly coupled to the plate member. The actuator assembly includes a number of optically transparent liquid crystalline polymer layers, wherein each of the optically transparent liquid crystalline polymer layers is structured to move from a first state to a second state in response to a first stimulus.

Apparatus and methods are provided to penetrate a bone and associated bone marrow using a powered driver. The powered driver is operable to insert an intraosseous device into a bone and associated bone marrow. The powered driver may include a housing having a distal end and a proximal end; a drive shaft having a first end disposed within the housing; a motor disposed within the housing and rotatably engaged with the drive shaft; a power supply to supply power to the motor; and a trigger assembly to activate the motor to rotate the drive shaft. A light may be connected to the power supply and operable to illuminate an insertion site for the intraosseous device.

A telescoping assembly such as an endobronchial ultrasound needle (EBUS) assembly includes a motor coupled to a biopsy needle within a telescoping housing to rotate (such as to oscillate) the needle during tissue harvest to improve harvesting.

Embodiments of medical devices and methods are disclosed. The medical devices typically comprises a needle with a rigid proximal shaft, a flexible distal shaft and a distal tip. The distal tip includes an electrode for delivering energy to puncture a tissue. In some embodiments, the distal shaft comprises a superelastic material. In other embodiments, the distal shaft is comprised of both a superelastic material and a non-superelastic material.

An apparatus and method for penetrating bone marrow is provided. The apparatus may include a housing such as a handheld body, a penetrator assembly, a connector that releasably attaches the penetrator assembly to a drill shaft, a gear mechanism, a motor and a power supply and associated circuitry operable to power the motor. The penetrator assembly may include a removable inner trocar and an outer penetrator or needle. It may also include a grooved trocar that allows bone chips to be expelled as the apparatus is inserted into bone marrow. Various connectors are provided to attach the penetrator assembly to the drill shaft.