A surgical system for use in establishing and maintaining an opening to an anatomical space of a body, the system comprising an obturator assembly having a cutting portion at a distal end and a cannula, the cannula being detachably coupled to the cutting portion and deployable into the anatomical space of a patient, the cannula comprises a locking portion, and a lengthwise extendable body; a valve assembly comprising a passage for receiving the cannula, a first end for coupling to a fluid extraction device and a second end for placement external and adjacent the anatomical space; a base comprising a plate for placement on a patient external and adjacent the anatomical space, the plate has an aperture configured for receiving the obturator assembly and coupling means located about the aperture for coupling with the valve assembly; and wherein, in use, the locking portion of the cannula is configured to be retained in the valve assembly with the extendable body extended into the anatomical space to facilitate a path for fluid extraction, and wherein the cannula comprises means for retaining the cannula in its extended state.

In some embodiments, an apparatus and methods for inserting a needle into a patient is disclosed. An apparatus can include a base having a cavity for receiving an ultrasound probe, a swing arm, a first linear position sensing track, a second linear position sensing track, an angle sensor disposed about a pivot point, a needle holder configured to move along the first linear position sensing track, and an insertion depth slider configured to move along the second linear position sensing track.

Embodiments of the disclosure include a tissue and/or access device that allows for adjustability of placement of a needle for accessing a blood vessel of an individual in need thereof, particularly when used with an imaging device. The adjustability originates from both angle of the needle for insertion into the body of the individual and longitudinal placement of the needle on the body of the individual. In specific embodiments, a needle guide through which the needle traverses is detachable.

The invention relates to a needle guiding device for guiding and positioning a needle-shaped device on a patient, wherein the needle guiding device has a base element and a needle guiding element on which the needle-shaped device can be guided along its longitudinal extent, wherein the angular orientation of the needle guiding element can be set in two independent angular degrees of freedom with respect to the base element. The needle guiding device has an operating element, by means of which the angular orientation of the needle guiding element in the two angular degrees of freedom can be fixed or such fixing can be released again. The needle guiding device also has, for each of the two settable angular degrees of freedom, an angle scale and an angle pointer associated with the relevant angle scale, such that the user can, on the basis of the position of the relevant angle pointer with respect to the associated angle scale, read off a currently set angular orientation of the needle guiding element in the two angular degrees of freedom.

A guide device for TMJ arthroscopy including one or more pairs of arms pivotly connected at one end to a working cannula holder and defining a working cannula axis; and at the opposite end to at one or more arms via one or more pivot connections to form with the arm one or more adjustable parallelograms, an end of the arm is connected to an irrigation cannula holder defining an irrigation cannula axis, the irrigation cannula axis intersecting with the working cannula axis at an intersection, intersection and one or more of the pivot connections between connecting the arms are located at opposing vertices of one or more of the adjustable parallelograms.

A trocar assembly for releasable engagement with an adapter assembly of a surgical stapling instrument includes a bearing assembly for distributing the axial load experienced by a drive member during tissue stapling. The bearing assembly is disposed within a housing between a flange of the housing and a flange of a drive member. The bearing assembly is configured to rotatably support the drive member and includes a thrust bearing, a rigid member, and a compressible member disposed between the thrust bearing and the rigid member. The compressible member includes a first compressed condition having a first thickness during a clamping stroke of the surgical stapling instrument and a second compressed condition having a second thickness during a stapling stroke of the surgical stapling instrument. The second thickness is less than the first thickness.

A guidance method comprising: placing a tracking pad adjacent a body, the tracking pad including a guiding opening and a plurality of sensors, locating a distal end of a needle inside of the guiding opening at an insertion point adjacent the body, the needle including at least one beacon, operating the plurality of sensors with the at least one beacon to track an actual disposition of the needle, establishing a target disposition for the needle, moving the needle in a direction of movement to synchronize the actual disposition with the target disposition, and inserting the distal end of the needle into the body along an insertion axis.

A medical device for injecting fat while simultaneously allowing the injection site to be viewed with ultrasound. The device may comprise a handle with a front portion and a rear portion, a cannula having a cannula tip, extending from the front portion of the handle, and an ultrasound probe attached to the handle, the ultrasound probe comprising an ultrasound head. The ultrasound head is aligned with and spaced apart from the cannula tip, and remains so aligned during the injection process so that the injection area may be continuously viewed during the procedure.

The present disclosure relates generally to the field of medical devices and establishing access to the renal capsule. In particular, the present disclosure relates to devices and methods for performing a percutaneous nephrolithotomy (PCNL) procedure accurately and efficiently while minimizing exposure of the medical professional to harmful radiation.

The present disclosure presents a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory. The trajectory array guide system can comprise: a base, an array guide, an imaging unit, and an elongated handle configured for connection with a stereotaxic navigation system. The present disclosure presents a method of using a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory.