A constriction removal method using a high-frequency knife (8) and a collecting instrument (7) having a longitudinal axis and an increasing-diameter part (12), whose diameter can be increased, at the distal end, the constriction removal method including: inserting the collecting instrument (7) from a proximal end opening of a constricted lumen of a constricted portion; allowing the increasing-diameter part (12) to pass through the constricted lumen and to project from the distal-end opening of the constricted lumen and allowing the diameter of the increasing-diameter part (12) having passed through the constricted lumen to increase toward the radially outer side of the constricted lumen; hooking ends of the increasing-diameter part (12) having passed through the constricted lumen on an edge of the distal-end opening of the constricted lumen; positioning the high-frequency knife (8) on the radially outer side of the proximal end opening of the constricted lumen; cylindrically coring out the constricted lumen with the high-frequency knife (8) in a state in which the ends of the increasing-diameter part (12) are hooked on the edge of the distal-end opening of the constricted lumen; and collecting the cored-out constricted lumen by pulling the collecting instrument (7) toward the proximal end of the collecting instrument (7).

The present invention is a vessel sealing and cutting system (10) comprising a surgical equipment (20) comprising a lower jaw (222) and an upper jaw (212) in a manner defining a holder tip (24) grabbing the tissues containing vessels, and a lower body (21) embodied at the continuation of said upper jaw (212), and a laser source (50) connected to said surgical equipment (20), characterized by comprising a module housing (215) embodied in a manner extending inside said lower body (21) and said upper jaw (212), and a laser module (30) which transmits a laser light to the grabbing region (61) from said holder tip (24) in a simultaneous manner with the closing of the jaws and positioned in said module housing (215) in a manner connected to said laser source (50) from one end thereof.

A surgical instrument includes an end effector assembly and a deployment mechanism for deploying a proximal hub associated with an energizable member between proximal and distal positions. The deployment mechanism includes a rotatable shaft, a cord including a proximal end engaged to the rotatable shaft and a distal end engaged to the proximal hub, a biasing member positioned to bias the proximal hub towards the distal position, and a gear assembly operably coupled to the rotatable shaft. The gear assembly is configured to move the proximal hub from the distal position to the proximal position against the bias of the biasing member by rotating the rotatable shaft relative to the cord to at least partially wind-up the cord about the rotatable shaft.

The present invention generally relates to an image-guided laser irradiation device for targeted ablation, stimulation, molecular delivery and therapy. Specifically, the invention relates to application of the device in therapies needing precise and targeted removal of a sample, or delivery of impermeable molecules for therapeutic outcome. More specifically, the invention relates to the application of the device in the therapy of visual disorders.

A dissecting device for dissecting tissue surrounding a blood vessel in a living body. The dissecting device includes a grasping section that includes an insertion lumen. The dissecting device includes a dissecting member at the distal portion of the grasping section. The dissecting member is insertable into the living body along the blood vessel to dissect the tissue surrounding the blood vessel in the living body. The dissecting member includes a treating section and a protruding section. The treating section performs a predetermined treatment of a branch vessel branching from the blood vessel. The protruding section protrudes from the treating section in the thickness direction of the treating section. The protruding section includes a guide section configured to guide the branch vessel toward the treating section.

A surgical instrument includes a hollow member having a sidewall provided with a window and a closure member movably connected to the hollow member for alternately covering and uncovering the window. The hollow member has a first clamping surface along an edge of the window, while the closure member has a second clamping surface opposing the first clamping surface and disposable substantially adjacent thereto in a clamping or closure configuration of the instrument. The instrument additionally comprises a tissue occlusion component mounted to at least one of the hollow member and the closure member for acting on tissues gripped between the first clamping surface and the second clamping surface, to couple the tissues to each other.

A surgical instrument includes a hollow member having a sidewall provided with a window and a closure member movably connected to the hollow member for alternately covering and uncovering the window. The hollow member has a first clamping surface along an edge of the window, while the closure member has a second clamping surface opposing the first clamping surface and disposable substantially adjacent thereto in a clamping or closure configuration of the instrument. The instrument additionally comprises a tissue occlusion component mounted to at least one of the hollow member and the closure member for acting on tissues gripped between the first clamping surface and the second clamping surface, to couple the tissues to each other.

A blood vessel dissecting device includes: a dissecting device which, when inserted into a living body along a blood vessel, dissects tissue in a direction of alignment of the dissecting device with the blood vessel; and a cutting device which, when inserted into the living body along the blood vessel, cuts tissue surrounding the blood vessel in a direction of alignment of the cutting device with the blood vessel. A blood vessel dissecting method includes: inserting a dissecting device into a living body along a blood vessel so as to dissect tissue in a direction of alignment of the dissecting device with the blood vessel; and inserting a cutting device into the living body along the blood vessel while guiding the cutting device with the dissecting device so as to cut tissue surrounding the blood vessel in a direction of alignment of the cutting device with the blood vessel.

A surgical instrument includes an end effector and a housing mechanically coupled to the end effector. The end effector includes a first actuating device configured to perform a first surgical procedure and a second actuating device integrally associated with the first actuating device and configured to perform a second surgical procedure, the second surgical procedure being independently operable and different than the first surgical procedure. An outer portion of the first actuating device and an outer portion of the second actuating device form a portion of an outer housing of the end effector. The housing includes a first actuator, mechanically coupled to the first actuating device and configured to impart movement to the first actuating device and a second actuator, mechanically coupled to the second actuating device and configured to impart movement to the second actuating device.

Electrosurgical forceps in which one or more pairs of non-resonant unbalanced lossy transmission line structures are arranged on the inner surfaces of the jaws of the forceps provide both (i) active and return electrodes for a radiofrequency (RF) signal, and (ii) lossy structures for delivering a microwave signal into biological tissue in conjunction with a mechanical gripping arrangement for applying pressure to material held within the jaws. The location of the pairs of transmission lines on the jaws of the forceps and the selection of the material of the jaws is arranged to ensure that any biological tissue gripped by the jaws become the propagation medium for the RF signal and the medium into which the microwave signal is lost.