A cautery pen tip accessory cover comprises a cylindrical member that can receive a cautery pen in a first end and the tip of the cautery pen can extend from a second opposite end when the cover is in a retracted configuration. The cylindrical member has an opened lateral exposure that allows the feel of the cautery pen therethrough. A cover exposure opening in the cylindrical member to provide access to a trigger of the cautery pen when the cautery pen tip cover is in the retracted configuration. A resilient member urges the cautery pen tip cover to the non-retracted configuration where access to the cautery pen trigger is prevented. The cylindrical member is easily retracted by a finger ring configured permanently into the cylindrical member, allowing easy retraction of the cover by the operator squeezing the cover to a resistance bar stabilization system accessory configured over the cautery pen.

An optical probe includes: an optical fiber; a reflecting portion; and a traveling direction changing portion changing a traveling direction of a laser beam of a first wavelength that has transmitted through the reflecting portion to a direction different from a traveling direction before transmitting through the reflecting portion. Further, the traveling direction changing portion is configured by a bending structure having a structure in which a portion on a distal end side of the optical fiber is bent, and the reflecting portion is provided closer to a proximal end side of the optical fiber than the bending structure.

The devices and method described herein allow for therapeutic damage to increase volume in these hyperdynamic hearts to allow improved physiology and ventricular filling and to reduce diastolic filling pressure by making the ventricle less stiff.

A papillotome for percutaneous endoscopic gastrostomy including a front opening located in a free end region of a catheter and at the outlet of a first lumen, a rear opening further from a free end than the front opening and connects the first lumen to the outside, and a cutting wire located in the first lumen in an axially displaceable manner and extends through the front opening and the rear opening and is located on the outside between the front opening and the rear opening. When the cutting wire is tensioned, the free end region is deformed in an arc shape and the cutting wire forms a transversely extending cutting edge between the front opening and the rear opening. The front opening is arranged at a distance of at least 3 mm from the free end. A projection is formed between the free end and the front opening. A cutting tip is formed at the free end of the catheter. The cutting tip is connected to the cutting wire and forms the foremost end of the papillotome.

A surgical instrument comprising an end effector is disclosed. The end effector comprises a surgical dissector. The surgical dissector can apply mechanical and/or electrosurgical energy to treated tissue.

A surgical instrument that includes a surgical end effector that is articulatable relative to a proximal shaft segment of the surgical instrument. The surgical end effector is attached to the proximal shaft segment by an articulation joint that comprises a plurality of movably interconnected links that interface with a centrally disposed drive member to apply articulation motions thereto and which serve to provide improved lateral stability to the articulation joint.

An apparatus configured to deliver electrical energy to energize an end effector coupled via a clevis to a shaft of a medical instrument comprises an electrical transmission conduit configured to extend along the shaft from a proximal portion to a distal portion and configured to deliver electrical energy to energize the end effector, and a connector assembly configured to couple to the end effector. The connector assembly comprises an electrically conductive contact portion configured to electrically couple the electrical transmission conduit to the end effector, the electrically conductive contact portion defining a pivot surface about which the end effector is rotatable in a coupled state of the connector assembly to the end effector; and an electrically insulating member configured to electrically insulate the end effector from the clevis in a coupled state of the connector assembly to the end effector.

A method and apparatus for providing hand-mounted surgical tools is provided. The apparatus includes a housing configured to be mounted to a body of a user. The apparatus also includes an optical source to generate a first optical signal in an absorption spectrum of a biocompatible fluorescing dye (BFD). The apparatus also includes an optical detector to detect a second optical signal in an emission spectrum of the BFD. The apparatus also includes a processor to receive a signal from the optical detector that indicates that the second optical signal was detected by the optical detector. The processor is further configured to cause the apparatus to transmit a signal to a non-visual feedback device to cause the non-visual feedback device to output non-visual feedback to the user that the second optical signal was detected by the optical detector.

An endosurgical device is provided. The endosurgical device comprises a flexible tube having at least two lengthwise extending channels, an end effector comprising two opposite jaws having opposite cutting edges, an effector sleeve that surrounds the tube at least at the distal tube end, and means for reciprocating the end effector axially in relation to the effector sleeve to close the jaws when the effector sleeve is moved forward and backwards to close and open the jaws, respectively. The exterior face of the opposite jaws is electrically insulated, and an electrical cord for providing current to the end effector extends inside one of the lengthwise extending channels of the tube. The endosurgical device may allow the surgeon to take several tissue specimens from an organ and to perform several functionalities when the device is inside the organ.

Embodiments described herein provide various techniques and systems for building machine-learning surgical tool presence/absence detection models for processing surgical videos and predicting whether a surgical tool is present or absent in each video frame of a surgical video. In one aspect, a process for ensuring patient safety during a laparoscopic or robotic surgery involving an energy tool is disclosed. The process can begin receiving a real-time control signal indicating an operating state of an energy tool during the surgery. Next, the process receives real-time endoscope video images of the surgery. The process simultaneously applies a machine-learning surgical tool presence/absence detection model to the real-time endoscope video images to generate real-time decisions on a location of the energy tool in the real-time endoscope video images. The process then checks the real-time control signal against the real-time decisions to identify an unsafe event and takes a proper action when an unsafe event is identified.