Abstract:
Embodiments of a surgical access port system that comprises a retractor that is adapted for being coupled to a cap and that is particularly useful in natural orifice surgery are described. The retractor comprises an outer ring, wherein the outer ring is configured to be disposed proximate the natural orifice of the patient and substantially surround the orifice; a tubular body; and a funnel segment extending between and coupling the outer ring and the tubular body, wherein the funnel segment provides a diametric reduction between the relatively large diameter of the outer ring and the relatively smaller diameter of the tubular body, which is sized to fit within a natural orifice with minimal distention of the orifice.
Abstract:
A trocar comprises a retention cannula comprising an inverted or incised retention pattern disposed thereon. Embodiments of the incised cannula exhibit reduced tissue trauma compared with screw-threaded cannula, improved fixation and/or retention compared with an unthreaded cannula, and good sealing between the cannula and the incision.
Abstract:
Devices, methods, and systems provide a surgical access device comprising an internal retractor device integrated with or coupled to a body wall or wound retractor. The wound retractor retracts an opening in a body wall into a body cavity, while the internal retractor permits a user to control the positions of internal structures within the body cavity, thereby permitting a user to define a surgical field Embodiments of the internal retractor are adjustable.
Abstract:
A surgical access device has a surgical retractor having a noncompliant outer ring with an annular axis, an inner ring, and a sleeve coupling the outer ring to the inner ring The noncompliant outer ring is adapted to roll over itself around the annular axis to roll the sleeve around the outer ring to retract and seal an opening in a biological body wall The access device may include a lid adapted for being coupled to the noncompliant outer ring of the surgical retractor The outer ring of the surgical retractor has a cross-sectional shape that prohibits the lid from being partially or incorrectly coupled to the outer ring of the surgical retractor.
Abstract:
A surgical stapler is provided that maintains the jaws of the stapler in an open position and prevents firing of staples when a cartridge is not loaded in one of the jaws. Distinct positioning and sequencing of the jaws, capture pin and firing of the staples are provided by a latch mechanism. Such locking and latching mechanisms ensure proper operation of the stapler.
Abstract:
The invention relates to a hand access laparoscopy device having a gelcap, a retainer, a sleeve and a retention ring. The gelcap includes gel that is bonded to a cap. The cap includes an inner cylindrical Wall to which the gel in bonded, thereby providing a sealing area between the device and the wound in a body wall. By securing the gel to the inner cylindrical wall, the thickness of the gel and corresponding cap is minimized along with the overall footprint of the device. With the gel thickness reduced and able to be substantially flush, the "doming" phenomenon produced by insufflation of a patient's abdomen is reduced.
Abstract:
A surgical access port or trocar is provided, The trocar has a trocar seal housing and a trocar cannula with an optical obturator insertable through the trocar seal housing and the trocar cannula. The trocar is configured to access a body cavity, to maintain positive pressure and to prevent foss of surgical insufflation gas used in laparoscopic procedures, The trocar seal housing can be releasably attached to the trocar cannula.. The trocar seal housing may also have a shield and/or alignment channel that provide protection or assist in operation of instrument and zero seals housed in the trocar seal housing.
Abstract:
The invention relates to a hand access laparoscopy device having a gelcap, a retainer, a sleeve and a retention ring. The gelcap includes gel that is bonded to a cap. The cap includes an inner cylindrical wall to which the gel in bonded, thereby providing a sealing area between the device and the wound in a body wall. By securing the gel to the inner cylindrical wall, the thickness of the gel and corresponding cap is minimized along with the overall footprint of the device. With the gel thickness reduced and able to be substantially flush, the "doming" phenomenon produced by insufflation of a patient's abdomen is reduced.
Abstract:
The invention is directed to nanostructure surface treatments or coatings formed from nanoscale building blocks. The nanostructure surface treatments or coatings have hydrophobic, hydrophilic and surface adherence properties. The nanoscale building blocks have orientation, geometry, packing density and composition that may be adjusted to control the unique surface characteristics of the desired treatment or coating. Applications of this nanostructure surface treatment or coating include surgical clips and clamps to improve retention without relying on material deformation and high pressure to assure adherence. In one aspect, a nanostructure surface treatment for a medical device having an external surface to provide a hydrophobic or a hydrophilic surface.
Abstract:
The invention is directed to a surgical instrument including a handle assembly and a shaft assembly. The handle assembly further includes a fixed handle and a pivoting handle. The shaft assembly extends from the handle assembly and further includes an outer tube and an inner actuation rod that slides coaxially with the outer tube. The shaft assembly includes a rotatable knob to provide 360° rotation. The actuation rod has a proximal end and a distal end; the proximal end has a ball end that couples with the pivoting handle to form a rotatable ball-and-socket joint. The outer tube is formed of plastic and fits over the actuation rod to function as an electrical insulator.