A surgical access device assembly includes a cannula hub and a cannula tube. The cannula tube extends distally from the cannula hub along a longitudinal axis. The cannula tube defines a working channel. The cannula tube includes a tissue engagement feature and a balancing feature. The balancing feature is configured to promote lateral stability of the cannula tube and the cannula hub relative to the body cavity wall of the patient. The balancing feature includes a proximal portion of the cannula tube having a first wall thickness. The balancing feature also includes a distal portion of the cannula tube having a second wall thickness that is greater than the first wall thickness. At least a portion of the proximal portion is proximal relative to the tissue engagement feature. At least a portion of the distal portion is distal relative to the tissue engagement feature.

A surgical access device assembly includes a cannula hub and a cannula tube. The cannula tube extends distally from the cannula hub along a longitudinal axis. The cannula tube defines a working channel. The cannula tube includes a tissue engagement feature and a balancing feature. The balancing feature is configured to promote lateral stability of the cannula tube and the cannula hub relative to the body cavity wall of the patient. The balancing feature includes a proximal portion of the cannula tube having a first wall thickness. The balancing feature also includes a distal portion of the cannula tube having a second wall thickness that is greater than the first wall thickness. At least a portion of the proximal portion is proximal relative to the tissue engagement feature. At least a portion of the distal portion is distal relative to the tissue engagement feature.

A system and method for video assisted percutaneous needle cricothyrotomy and tracheostomy to assist physicians in quickly intubating patients suffering from respiratory distress when oral or nasal intubation is not possible or contraindicated. The system and method includes a display monitor, a percutaneous needle assembly including a connection hub having a syringe port for removably attaching a syringe, a needle port for attaching a hollow needle, and a stylet port in communication with the needle port for receiving a fiber optic stylet that extends through the hollow needle. The fiber optic stylet includes one or more illuminators, and a camera for capturing and transmitting anatomical images for display on the display monitor to visually assist physicians in locating a patient's trachea lumen. The fiber optic stylet is positioned within the trachea lumen, and used as a guide wire to insert a dilator and cannula for ventilating the patient.

Various exemplary angled surgical trocars and methods of using angled surgical trocars are provided. In general, a trocar configured to be advanced into a body of a patient can have an angled distal portion. The trocar can have a cut-out at its distal end in the angled distal portion of the trocar. The trocar can be advanced into the patient's body alone or with an obturator located therein. The obturator located in the trocar can have a flexible portion configured to bend within the trocar's angled distal portion. The trocar and obturator can be used in a variety of medical procedures, for example thoracic procedures in which the trocar is used to provide access to a thoracic cavity of a patient.

A method of fusing a first bone and a second bone. An abrading and harvesting device is provided that includes a needle portion having a sharpened tip. The needle portion has a central bore extending therethrough. The needle portion has a proximal end and a distal end. The sharpened tip is attached to the distal end of the needle portion. A probe is provided having an unsharpened tip portion. The probe is extended between the first bone and the second bone. The needle portion is extended over the probe by passing the proximal end of the probe through the central bore. The first bone and the second bone are abraded with the sharpened tip to cause bleeding bone to be exposed on the first bone and the second bone. A device is placed along a path formed by the needle portion between the first bone and the second bone.

Disclosed herein is a percutaneous catheter apparatus, comprising two nested needles; and an inner plunger; which is guided as a catheter to the tissue surrounding a hard implant to actuate and deploy a pair of sharp-tip needle-forceps that perform two concentric cuts, circularly spaced 90-degree apart from each other, to complete a 360 degree bore around the implant before squeezing to arrest and extract the implant, together with its surrounding tissue.

The present invention relates to a fully integrated sterilizable one time use disposable tissue visualization device and methods for using such devices. Preferred embodiments of the invention facilitate the visualization of an internal tissue site while causing a minimum of damage to the surrounding tissue. Further preferred embodiments may allow for the delivery of fluids and other treatment to an internal tissue site.

Endoscopic light refraction imaging techniques are described for configuring a viewing trocar and/or angled endoscope with a light refracting element, such as glass and/or plastic prism for instance. The light refracting element can be utilized in and/or with the viewing trocar to refract (i.e., bend) light passing into the trocar through the trocar's window. As a result, the angled endoscope's field of view can be substantially aligned with the field of view of the trocar's window, thus allowing the angled endoscope and viewing trocar to be used together to create ports in a patient, including initial ports of endoscopic surgical procedures.

A biopsy device includes a cannula and a specimen collector. The cannula has a proximal end and a longitudinal axis. The specimen collector contains the proximal end of the cannula. The specimen collector has a removable sample receiving cartridge that is removable along the longitudinal axis of the cannula to expose the proximal end of the cannula.

A surgical instrument guide assembly includes a main guide portion that includes a shaft portion extending along a longitudinal axis and a body portion extending along the longitudinal axis, and a proximal end of the shaft portion is disposed at a distal end of the body portion. The main guide portion further includes a first lumen and a second lumen that each extends along the longitudinal axis from a proximal end at a proximal end of the body portion to a distal end at a distal end of the shaft portion. A seal portion is coupled to the proximal end of the body portion of the main guide portion, and the seal portion includes a first port and a second port formed in a seal wall of the seal portion. The seal portion is selectively displaceable from a first position to a second position.