摘要:
A filling material which enables a user to visually confirm the state of the filling material while it is injected into a flexible container based on an X-ray image, and a method of confirming the injection state of the filling material. The filling material configured to be injected into the flexible container includes a first contrast substance that is flowable, and a second contrast substance that is mixed into the first contrast substance and is insoluble in the first contrast substance. The second contrast substance possesses higher contrast X-ray contrast properties than the X-ray contrast properties of the first contrast substance.
摘要:
A delicate tissue retraction system having a hollow tubular retractor, a hollow tubular introducer that is removably installed within the retractor, and a navigation module that is removably installed within the introducer. The navigation module has a shaft with a proximal shaft end and a distal shaft end, and a navigation unit mounted to the proximal shaft end. When assembled, the distal shaft end is contained generally within the introducer and the navigation module outside the introducer. The navigation module indicates the location of one or more points on at least one of the retractor and the introducer to a navigation system.
摘要:
A surgical access assembly and method of use is disclosed. The surgical access assembly comprises an outer sheath and an obturator. The outer sheath and obturator are configured to be delivered to an area of interest within the brain. Either the outer sheath or the obturator may be configured to operate with a navigational system to track the location of either device within the brain.
摘要:
The present invention provide for improved optical entry systems and methods for minimally invasive surgery. According to some aspects of the disclosure, an obturator and trocar are merged to provide a device that can be used with an integrated visualization means (e.g. laparoscope) to provide optical entry into a patient's body cavity. Further, a reconfigurable tip is configured to be in an entry state and a visualization state. Said aspects and associated method steps can significantly reduce the complexity of the entry process and do not require removal and reinsertion of surgical instruments which eliminates the need for valves in the trocar and reduces the possibility of contamination of the visualization means' objective lens.
摘要:
An illuminating ring assembly is disclosed. The illuminating ring configured to be used with a surgical access element. The illuminating ring assembly comprises a housing defined by a cover and a wall member extending from the cover, wherein the cover and wall member cooperate to define a cavity therein, a light element configured to be disposed with the cavity, and an attachment mechanism configured to selectively attach the housing to a surgical access element. Wherein the cover and the light element both include an opening therethrough.
摘要:
A trocar assembly includes a trocar including an elongated tubular member extending between a distal end configured to be inserted into a surgical site and a proximal end including a housing configured for introduction of surgical instruments into the tubular member. The housing includes a pair of opposed latch receptacles. An obturator is assembled into the tubular member of the trocar. The obturator includes an elongated obturator body extending from a trocar cover to an opposed obturator tip. The trocar cover includes a rim for engaging the housing of the trocar. The trocar cover includes a pair of opposed latches extending radially inward from the rim, wherein the latches are releasably latched to the latch receptacles of the trocar. The trocar cover includes a compliant mechanism operatively connected to release the latches from the latch receptacles.
摘要:
A trocar assembly for use in minimally invasive surgical procedures includes a cannula subassembly and an obturator subassembly. The obturator assembly includes an obturator shaft member defining a longitudinal axis and an obturator tip configured to be removable from the obturator shaft member or, alternatively, constructed with the obturator member as a single unit. Various designs of the obturator tip are contemplated.
摘要:
Devices, tools and methods for performing minimally invasive surgical procedures. Methods of performing minimally invasive ablation procedures. Methods of performing rapid exchange of tools in a device while the device remains in a reduced-access surgical space.
摘要:
A removable, resilient atraumatic sheath for arthroscopic instruments. The sheath covers sharp edges on the arthroscopic instrument, particularly the distal tip of the rigid cannula, and thereby protects tissue and objects near a surgical site from accidental trauma. The sheath may be provided in the form of an inflow/outflow sheath that allows a surgeon to irrigate and drain a surgical field without the use of a separate irrigation instrument. The distal tip of the sheath may comprise a dissimilar material of a higher modulus of elasticity than the material comprising the remainder of the tube.
摘要:
A marker deployment tool may comprise a marker cannula having a lateral deployment aperture, a push rod slidably disposed within the marker cannula and a scalloped tip coupled to the distal end of the marker cannula. The scalloped tip may have a push rod recess configured to receive a portion of the distal end of the push rod such that the push rod does not appreciably extend out of the lateral deployment aperture when the push rod is actuated distally. The marker deployment tool may further comprise a magnet at or near the distal end. This magnet may be used in combination with a magnet or plurality of magnets disposed about an access chamber in a tissue sample holder to assist the user in aligning the marker deployment tool. The access chamber in the tissue sample holder may also include a valve, two valves, or a removable plug.