A surgical access device includes a cannula body, an anchor, and a first suture retention mechanism. The cannula body includes a housing and an elongated portion extending distally from the housing. The elongated portion defines a longitudinal axis and a channel extending therethrough. The anchor is disposed in mechanical cooperation with the elongated portion of the cannula body and is longitudinally translatable relative to the elongated portion. The first suture retention mechanism extends laterally from the anchor. A suture-receiving channel is defined between a portion of the suture retention mechanism and a portion of the anchor.

This invention relates generally to a medical device, and more specifically, to a vaginal surgical apparatus. In one embodiment, a vaginal device includes, but is not limited to, a shaft, the shaft including at least a space to at least partially accommodate a cervix; and a slot to secure a tenaculum; and a stopper that is positionably adjustable along at least a portion of a length of the shaft.

A surgical access assembly includes a cannula and a retention anchor including an annular body and a washer secured to the annular body. The annular body includes an inner side surface defining an opening therethrough, and the washer includes an inner terminal edge defining an opening therethrough that is aligned with the opening of the annular body. The elongated shaft of the cannula extends through the openings. The washer is transitionable between a first configuration in which the inner terminal edge of the washer is coincident with or disposed radially outwardly of the inner side surface of the annular body so that the retention anchor is slidable along the elongated shaft, and a second configuration in which the inner terminal edge of the washer extends radially inwardly of the inner side surface of the annular body and engages the elongated shaft to fix the retention anchor to the elongated shaft.

A surgical cannula includes a seal structure including a one-way check valve and a cannula body. The cannula body includes an insertion portion having a distal opening that is configured to be inserted into tissue, and a receiving portion that includes a proximal opening and is configured to reversibly receive the seal structure. In addition, the seal structure is configured to removably associate with the proximal opening of the cannula body, retain a positive pressure within the cannula body when engaged with the cannula body, and retain a positive pressure within the cannula body when an object is inserted through the cannula and the seal structure. Also, the cannula further includes one or more suture attachment structures extending outward laterally from the cannula body; and one or more internal recesses in an inner wall of the cannula located directly adjacent to the one or more suture attachment structures.

An electrical lead for implantation in a patient is disclosed. The electrical lead can include a distal portion configured to split apart into sub-portions that travel in multiple directions during implantation into the patient and an electrode extension that increases a distance between an electrode and one or more other electrodes on the distal portion of the lead and/or facilitates contact of the electrode with patient tissue.

A surgical access device has a cannula tube with a collar coupled to a proximal region of the cannula tube. A balloon is attached to the cannula tube. The collar includes a receptacle and an inflater is insertable into the receptacle. The inflater has a body with a chamber and a first compound. A cap is attached to one end of the body and has a cavity containing a second compound. A membrane is disposed between the body and the cap and is configured to keep the first and second compounds separate. A button extends through an opening of the cap and a piston is coupled to the button. The piston includes a spike extending away from the button and is translatable in the cap between a rest position and an actuated position. The actuated position is defined by a portion of the spike penetrating the membrane such that the first compound interacts with the second compound generating a gas that is communicated to the balloon via a groove of the cannula tube.

A surgical access device includes a cannula body and a fixation mechanism. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a sleeve and a spring. The sleeve radially surrounds a portion of the elongated portion of the cannula body. The sleeve is rotatable about the longitudinal axis relative to the elongated portion of the cannula body, and the sleeve is longitudinally translatable relative to the elongated portion of the cannula body. A first portion of the spring is engaged with the sleeve, and a second portion of the spring engaged with a distal portion of the elongated portion of the cannula body. Rotation of the sleeve about the longitudinal axis relative to the elongated portion of the cannula body causes a portion of the spring to move away from the longitudinal axis.

In some embodiments a PEG feeding device includes a tube sized to bridge a channel between a stomach and an outer abdominal surface; an internal bolster, and an external bolster. Optionally the bolsters are connected to the tube. The internal bolster may be sized to resist movement out of the stomach through the stoma. The external bolster may be sized to resist movement into the stoma from the outer abdominal surface. The external bolster may include an underside which extends from the tube in a radial direction between the external bolster and the outer abdominal surface. The underside of the outer bolster may contact the outer abdominal surface at a distance from an external opening of the stoma. Optionally the distance between the internal bolster and the external bolster is adjustable. Optionally an angle between one or both of the bolsters and the tube is adjustable.

The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

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.