11results about "Instrument probes" patented technology

A surgical instrument includes an end effector and a controller. The end effector includes a first jaw, a second jaw, and an electrode associated with the first jaw. The first jaw and the second jaw can move between an open position and a clamped position in order to grasp tissue. Further, the electrode emits a therapeutic energy cycle to seal the grasped tissue. The controller can measure an impedance parameter associated with the end effector and compare the measured impedance parameter with an upper predetermined threshold. Further the controller can generate a cleaning instruction or alter an energy delivery algorithm of the RF therapeutic energy cycle if the measured impedance parameter is greater than the upper predetermined threshold.

A surgical instrument includes an end effector and a controller. The end effector includes a first jaw, a second jaw, and an electrode associated with the first jaw. The first jaw and the second jaw can move between an open position and a clamped position in order to grasp tissue. Further, the electrode emits a therapeutic energy cycle to seal the grasped tissue. The controller can measure an impedance parameter associated with the end effector and compare the measured impedance parameter with an upper predetermined threshold. Further the controller can generate a cleaning instruction or alter an energy delivery algorithm of the RF therapeutic energy cycle if the measured impedance parameter is greater than the upper predetermined threshold.

A surgical instrument including an end effector that may transition between a deactivated and activated configured to transmit energy to tissue, and a proximal body attached to the end effector. The proximal body includes an electrical component that may assist the end effector, a first shroud, and a second shroud capable of coupling with the first shroud to cooperatively define a hollow interior that houses the electrical component. The proximal body further includes a first restraining feature and a second restraining feature associated with the first shroud and the second shroud, respectively. The first and second restraining features may couple together to cooperatively align the first shroud and the second shroud. The first and second restraining feature may selectively disengage to allow the first shroud and the second shroud to decouple form each other and expose the electrical component within the hollow interior.

Apparatus for performing a minimally-invasive procedure, the apparatus comprising: a shaft having a distal end and a proximal end; a monopolar knife assembly attached to the distal end of the shaft, the monopolar knife assembly comprising a knife; a handle attached to the proximal end of the shaft; wherein the shaft comprises a flexible portion and an articulating portion, wherein the flexible portion extends distally from the handle and the articulating portion extends distally from the flexible portion; wherein at least one articulation cable extends from the handle to the articulating portion, such that when tension is applied to the at least one articulation cable, the articulating portion deflects; wherein an actuation element extends through the shaft from the handle to the knife, such that when the actuation element is moved, the knife is moved; and wherein the actuation element transmits electrical power from the handle to the knife.

A surgical instrument includes an end effector and a controller. The end effector includes a first jaw, a second jaw, and an electrode associated with the first jaw. The first jaw and the second jaw can move between an open position and a clamped position in order to grasp tissue. Further, the electrode emits a therapeutic energy cycle to seal the grasped tissue. The controller can measure an impedance parameter associated with the end effector and compare the measured impedance parameter with an upper predetermined threshold. Further the controller can generate a cleaning instruction or alter an energy delivery algorithm of the RF therapeutic energy cycle if the measured impedance parameter is greater than the upper predetermined threshold.

This invention discloses a plasma tissue dissection knife, relating to the field of medical device technology. To address the problem of reduced surgical efficiency caused by frequent instrument switching during endoscopic surgery involving multiple instruments, the following technical solution is proposed: It includes a blade head, a blade shaft, a handle, and a cable connected in sequence. The blade head includes a blade telescopic assembly located at the tip. The handle houses an endoscope guide tube and a blade telescopic control mechanism, which drives the blade extension and retraction of the blade telescopic assembly via a transmission component. A positive electrode cable extends to the blade head and connects to the blade telescopic assembly, while a negative electrode steel pipe connects to a negative electrode cable, forming a dual-frequency polarized cutting pattern at the blade. A suction channel within the blade shaft is used for surgical field irrigation and intraoperative fluid aspiration. This invention significantly improves upon traditional cold instruments in terms of cutting efficiency, bleeding control, surgical field clarity, optimized blade shaft size, cutting flexibility, sealing performance, and ease of operation.

A catheter has a composite and segmented construction in a distal section that includes deflectable members and support member arranged in alternating sequence, with each support member carrying a ring electrode and the deflectable members being flexible to allow deflection of the distal section as a whole. Carried on an outer surface of the support member is a coil location sensor. The distal section is configured with a distal irrigation fluid path extending axially through the deflectable members and the support members to deliver irrigation fluid to the ring electrode and the tip electrode. A method of constructing a catheter includes building a section of the catheter from the inside out by mounting the support members on a tubing at predetermined locations and filling gaps in between with a more flexible material to form the deflectable members by extrusion segments or injection molding over assembled components internal to the catheter.

1. A cryotherapy system comprising: an elongated device having a body, a proximal end, and a distal end, the elongated device configured to be disposed within a hollow organ, the elongated device including a cryopathway fluidly connecting a cryopathic source with the distal end of the device, the cryopathway configured to enable flow of cryopathic fluid into the hollow organ, an optical assembly within the body configured to visualize a field of view between the device distal end and a target site within the hollow organ, the irrigation path including at least one irrigation opening at the device distal end, the irrigation path configured to connect a irrigation fluid source with the at least one irrigation opening and release irrigation fluid within the hollow organ, and at least one flow reducer in the irrigation path configured to narrow an internal lumen through which the irrigation fluid flows.

Instruments having a hood that defines and surrounds a flow chamber. The flow chamber can serve for suction of emissions that are produced due to influence of an electrode supplied with high frequency voltage on biological tissue. For elimination of tissue deposition and other clogging from the flow chamber the electrode is surrounded by a movable hood that can be transitioned for cleaning purposes out of its operating position into a cleaning position.

We provide a cryotherapy device for treating hollow organ diseases. [Solution] A cryotherapy system comprising: a main body, a proximal end and a distal end, configured to be positioned inside a hollow organ, a cryogenic path that fluidly connects a cryogenic fluid source to the distal end of the device and is configured to allow the flow of cryogenic fluid into the hollow organ; an optical assembly inside the main body configured to visualize the view between the distal end of the device and a target site inside the hollow organ; a cleaning path including at least one cleaning opening at the distal end of the device, configured to connect a cleaning fluid source to at least one cleaning opening and to discharge cleaning fluid 217 inside the hollow organ; and at least one flow reducer in the cleaning path configured to narrow the internal lumen of the cleaning path through which the cleaning fluid flows.

An end effector of an electrosurgical device may include a discharge port, an aspiration port, two electrodes, and a diverter formed from a porous material. The diverter includes a matrix having voids to receive fluid from the discharge port. A releasable diverter assembly may include an assembly body configured to receive a pair of electrodes and a diverter composed of a porous material. A shaft assembly of an electrosurgical device may include two electrodes and two fluid cannulae. Each cannula may be disposed proximate to a surface of each of the electrodes. An end effector of an electrosurgical device may include a fluid discharge port, two electrodes, and a diverter disposed therebetween. A proximal edge of the diverter may form a secant line with respect to the end of the discharge port so that fluid emitted by the discharge port is disposed on a surface of the diverter.