An electrosurgical device having first and second poles; blade electrode with a metal shim having two opposing faces and one or more facets, a nonconductive coating which covers at least the faces and a portion of the facets of the metal shim, while a distal portion of the one or more facets remains uncovered by the nonconductive coating; a lateral electrode comprised of a broad shim having one or more conductive faces and is placed parallel to the blade electrode so that at least one of the one or more conductive faces is exposed and a distal end of the blade electrode protrudes from the lateral electrode; the lateral electrode is fixed stationary relative to the blade electrode; the nonconductive coating insulates the blade electrode from the lateral electrode; and the first pole is connected to the blade electrode and the second pole is connected to the lateral electrode.

A computer-assisted system includes an instrument manipulator assembly including a preload assembly and a motor, an insertion assembly configured to control a position of the instrument manipulator assembly, and a motor controller coupled to the preload assembly. The motor controller is configured to actuate the preload assembly to control an amount of preload applied by the preload assembly to the motor and actuate the preload assembly to apply a low preload in response to detecting that a sterile adapter is mounted to the instrument manipulator assembly.

Powered drivers operable to insert an intraosseous device into a bone and associated bone marrow are disclosed. Some of the present powered drivers may include a housing having a distal end and a proximal end; a motor disposed in the housing; a driveshaft at the distal end of the housing; and a gearbox coupled to the motor and to the driveshaft. Activation of the motor causes rotation of the driveshaft. The housing may include a power source configured to power the motor. The driveshaft may be slidably disposed in the housing and configured such that, upon application of a threshold force on the driveshaft in the direction of the proximal end of the housing, the driveshaft will slide toward the proximal end of the housing to cause an electrical circuit between the motor and the power source to close.

A blood vessel puncturing means within the internal cavity of the sealing jaws of an electrosurgical instrument. A forceps type electrosurgical device provided with jaws having electrically conductive sealing plates on the inner surfaces that is used to seal a blood vessel during will usually have an inner cavity of the jaws between the jaws within which a blood vessel is received and may expand during electrosurgical sealing. To prevent a blood vessel expanding during electrosurgical sealing to a dangerous size, the inner cavity is provided with a means to puncture the blood vessel in a controlled fashion, and thereby relieve the pressure within the blood vessel. The puncturing means may comprise one or more relief vents. The relief vents may provide channels to allow pressure to be vented to the external of the jaws, thus relieving the internal pressure on the jaws during coagulation.

Devices and methods for an autovance intraosseous device. The autovance intraosseous device can include a trigger activated system or pressure activated system that causes a needle to advance distally for a predetermined distance. The predetermined distance ensures a needle tip extends through the bone cortex, to access the medullary cavity, without penetrating a far wall of the medullary cavity. The advancement can be driven by a spring based system or an electric motor.

Penetrative access devices for assisting users in performing any one or more of various medical procedures that require inserting a needle into a patient, such as for vascular access, pneumothorax decompression, catheterization, abscess draining, etc. In some embodiments, a penetrative access device of this disclosure is a handheld device that is fully self-contained in that it contains all of the hardware and software needed to perform the penetrative access. In some embodiments, a penetrative access device of this disclosure is a handheld device that cooperates, within a penetrative access system, with one or more devices external to the penetrative access device in providing the requisite penetrative access features. Various related methods are also disclosed, including methods of using a penetrative access device/system of the disclosure, methods of performing access operations, and methods of contactlessly calibrating needle-tip location for accurate needle-tip guidance.

A medical power supply includes a medical instrument and a guide tube. The power receiving member is arranged radially outside the insertion portion, and when the insertion portion is inserted into the guide tube to a predetermined length such that the power transmitting member and the power receiving member are close to each other, a power transmitting side proximal end surface of the power transmitting member and a power receiving side distal end surface of the power receiving member face each other in an axial direction of the insertion portion and are in a positional relationship such that wireless power supply is possible.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen.

A cannula mount for a surgical system includes pivotable clamping arm with a first feature configured to engage a second feature of the cannula positioned in the cannula mount. The clamping arm comprises a cam follower surface. The cannula mount further comprises a latch member movable between at least a first position and a second position, and the latch member comprises a cam surface. On the condition that the latch member is in the first position, the cam surface engages the cam follower surface of the clamping arm to actuate the clamping arm to a closed position in which the first feature engages the second feature. On the condition the cam member is in the second position, the clamping arm is free to move to an open position in which the first feature does not engage the second feature. Devices and methods relate to cannula mounts.

Powered drivers (10) for inserting an intraosseous device (160) into a bone and associated bone marrow are disclosed. Some of the powered drivers (10) may include a housing (12) having a distal end (14) and a proximal end (16); a motor (18) disposed in the housing (12); a driveshaft (34) extending outward from the distal end (14) of the housing in a direction away from the proximal end (16); a gearbox (32) coupled to the motor (18) and to the driveshaft (34) such that activation of the motor (18) causes the driveshaft (34) to rotate; and a power source (40) configured to power the motor (18). A guard member (50) may be pivotably connected to the housing (12) and movable between a protective position and a non-protective position. The guard member (50) may be configured to cover the intraosseous (10) needle assembly in the protective position and to expose the intraosseous (10) needle assembly in the non-protective position. A biasing member (70) may be configured to urge the guard member (50) toward the non-protective position.