1147 results about "PERITONEOSCOPE" patented technology

A surgical instrument for laparoscopic and endoscopic clinical procedures simultaneously severs and staples tissue clamped in an end effector comprising an elongate channel, which holds a staple cartridge, and a pivotally attached anvil. An E-beam firing bar engages the channel and selectively engages the anvil during distal firing movements, wherein the tissue is severed and stapled driven upward from the staple cartridge to form against the anvil. In particular, a wedge integral to the staple cartridge is driven distally by a middle pin of the firing bar to effect stapling. A single lockout of the elongate channel responds to the presence of the wedge sled in its unfired position to allow the firing bar to fire. Otherwise, the single lockout prevents firing when the staple cartridge is missing or spent.

A surgical instrument for being endoscopically or laparoscopically inserted to a surgical site for simultaneous stapling and severing of tissue includes electrically actuated deployment of buttress pads held on inner surfaces of upper and lower jaws of a staple applying assembly. Thereby, thick or thin layers may be stapled and severed without improper staple formation nor with nonoptimal deployment of the buttress pads. Electroactive polymer (EAP) actuated latches, an EAP channel, or a rigid channel with an EAP pinch lock reliably hold the buttress pad until deployment is desired with a low force to separate the stapled and severed buttress pad / tissue combination with the respective EAP mechanism activated for deployment.

A surgical instrument for being endoscopically or laparoscopically inserted into a surgical site for simultaneous stapling and severing of tissue includes force adjusted spacing between an upper jaw (anvil) and a lower jaw (staple cartridge engaged to an elongate staple channel) so that the height of staple formation corresponds to the thickness of the tissue, yet does not exceed the height range that may be accommodated by the length of the staples. In particular, resilient structures are formed into an E-beam firing bar that includes a cutting surface (knife) that severs tissue between a top pin that engages the anvil and a middle pin and lower foot that engage the lower jaw. The resilience responds to the force exerted by clamped tissue to vary the spacing.

A surgical instrument for being endoscopically or laparoscopically inserted into a surgical site for simultaneous stapling and severing of tissue includes load sensing pressure transducers strategically placed for closed loop control and monitoring. Load sensing within a staple applying assembly (end effector) may provide feedback for preventing firing with insufficient or too much tissue, or to sense appropriate presence buttress material, to deploy buttress material after firing is sensed.

A surgical instrument particularly suited to endoscopic and laparoscopic insertion through a cannula of a trocar into an insufflated body cavity or lumen includes a bending member in an elongate shaft that acts to rotate an end effector about an articulation pivot joint. A proximally directed camming surface (e.g., gear segment, cam recess) aft of a pivotal attachment of the end effector to a proximal frame ground of the elongate shaft interacts with a bending member whose proximal end is ground to the proximal frame ground. Differential fluidic actuators or mechanical cam bars deflect a distal end (e.g., rack, cam point) of the bending member to effect articulation. Thereby, the end effector may act upon tissue that would otherwise be obscured, such as behind an organ. The articulated end effector also advantageously allows an endoscope to be positioned behind the end effector without being blocked by the instrument shaft.

A surgical instrument having opposed jaws that can be selectively moved between open and closed positions. Various embodiments include components for measuring the thickness of tissue clamped between the opposed jaws. Some embodiments are configured to ascertain the amount of compressive force that is being applied to the tissue while the thickness of the tissue is being determined. The tissue thickness data is displayed on the instrument itself and / or on a display that is remote from the instrument. The various embodiments may comprise different types of surgical instruments such as surgical staplers and graspers. A jaw arrangement with jaws shaped to define a cradle that corresponds to a cross-sectional shape of an object is also disclosed. The components that generate the thickness data may be electrically or mechanically actuated.

A robotic surgical system for performing minimally invasive medical procedures includes a robot manipulator for robotically assisted handling of a laparoscopic instrument having a manipulator arm, a manipulator wrist supported by the arm and an effector unit supported by the wrist, wherein the manipulator arm provides three degrees-of-freedom by means of a first joint, a second joint and a third joint, each having an associated actuator, for robotically positioning the wrist, the wrist providing two degrees-of-freedom by means of a fourth joint and a fifth revolute joint having an associated actuator, for robotically setting the yaw angle and the pitch angle of the effector unit respectively; the effector unit includes a laparoscopic instrument actuator and provides one degree-of-freedom by means of a revolute sixth joint having an associated actuator for robotically setting the roll angle of the LIA which includes a seat, with an associated coupling mechanism for mounting an instrument stem adaptor to the effector unit, and an actuation mechanism cooperating with the instrument stem adaptor for actuating a laparoscopic instrument connected to the adaptor. The effector unit is configured such that the rotation axis of the revolute sixth joint coincides with the longitudinal axis of a laparoscopic instrument mounted to the effector unit and the effector unit includes a sensor assembly having a 6 degree-of-freedom (DOF) force / torque sensor and a 6 DOF accelerometer. The sensor assembly connects the LIA to the sixth revolute joint.

The present invention is a device and method of using a variety of laparoscopic or NOTES surgical tools at a confined or inaccessible space, e.g., an intra-abdominal surgical and NOTES tool inserted through a single incision through the skin or hollow viscus. Generally, the laparoscopic or NOTES surgical devices include a device body having a first side and a second side, wherein the first side includes a positioning mechanism and the second side includes one or more of a variety of laparoscopic or NOTES tools.

A laparoscopic surgical instrument configured to be ergonomic and anthropometrically correct, the laparoscopic surgical instrument comprising: (a) an ergonomic handle configured to orient a hand of a surgeon in a functional position, the handle comprising a handle grip; (b) an actuating mechanism actuatable by a finger and supported by the handle, the actuating mechanism comprising an actuator shaft and a gearing assembly operable to displace the actuator shaft with a mechanical advantage upon actuation of a trigger by the surgeon; (c) a locking mechanism configured to lock the actuating mechanism in one of a plurality of positions, the locking mechanism comprising a release located in an anthropometrically correct position; and (d) a working shaft having a proximal end coupled to and operable with the actuator shaft, the working shaft having an elongate configuration and a distal working end configured to couple a surgical tool to be manipulated by the surgeon via the handle and the actuating mechanism to perform a surgical function.

Various embodiments of a laparoscopic trocar assembly are disclosed. The port assemblies include inserted parts that protect the patient's tissues at the point of deployment. The port assemblies include seals for maintaining pneumoperitoneum both when instrument are being used and when instruments are not inserted.

The invention relates to a device and related method for sealing and / or dissecting body tissue using a reverse action instrument. The devices and methods described permit laparoscopic or natural body orifice access to an anatomical space and facilitate sealing portions of tissue together, dissecting tissue or combinations thereof. A surgical instrument for sealing and dissecting body tissue is described having distal and proximal ends with an elongated body. The body includes a jaw member positioned at the distal end that is defined by a stationary arm and a pivotable arm. A moveable closure sleeve is disposed at least partially about the body and the closure sleeve is configured such that coaxial movement of the sleeve along the longitudinal axis of the body causes the jaw member to open or close.

Methods and devices are provided for performing minimally invasive surgical procedures. In one embodiment, a surgical device is provided that includes an elongate shaft having a distal portion configured to be movable between a first configuration in which the distal portion of the shaft is substantially straight or linear and a second configuration in which the distal portion of the shaft is bent at a compound angle. The shaft's distal portion can be configured to be articulated in a wide range of compound angles and can be configured to be selectively locked in a fixed position anywhere within that range.

The present device relates to a laparoscopic medical instrument, particularly those used for minimally invasive surgery. The instrument has a movable and a stationary handle portion and an extended shaft assembly with a removable actuating rod. An opening on the side of the stationary handle portion allows a user to visually confirm the removable actuating rod is locked into place within the movable handle portion. An opening in the back of the stationary handle portion allows for cleaning and visual inspection of the interior of the shaft assembly portion once the rod is removed. The actuating rod has a grasping mechanism for performing work during surgery. A flush port is located near the distal end of the stationary handle portion.

An intra-operative sensor device for detecting tissue or body parameters includes one or more light emitting sources and one or more photo-detectors. An optical isolator ring may be placed around either the one or more light emitting sources or around the one or more photo-detectors. The intra-operative sensor device may be a stand alone device or may be operatively coupled into a surgical instrument, such as a laparoscopic device.