3660 results about "Forceps" patented technology

A bipolar electrosurgical forceps comprises an elongated tubular barrel having a proximal end, a distal end and a lumen extending between these two ends. A handle is provided at the proximal end of the barrel and includes an actuating member for opening and closing a pair of forceps jaws that are mounted at the distal end of the barrel. The forceps jaws include cam slots in a proximal head portion thereof. A coupling member extends between the actuating member on the handle and the pair of forceps jaws. The coupling member includes drive pins that cooperate with the cam slots whereby squeezing of the actuating mechanism first effects pivotal rotation of the pair of forceps jaws over a first range of motion of the actuating member and translation without rotation of the forceps jaws over a second range of motion of the actuating member.

The present invention was made in the light of the foregoing backgrounds, and an object thereof is to provide a forceps channel add-on device for an endoscope, provided on an outer periphery of an insertion portion of the endoscope. The forceps channel add-on device for an endoscope is an external forceps channel device for an endoscope, which is capable of providing two forceps channels or more without controlling the luminous intensity and the field of view of the endoscope, capable of extracting a substance larger than the bore diameter of the forceps channel multiple times while using the endoscope in a state of not being drawn out, without imposing a heavy burden on a patient, and also capable of performing examination after an operation as to whether complications are incurred after the evulsion, whether there is any other affected part overlooked, and so forth. An external forceps channel device for an endoscope, provided with an external forceps channel which is capable of being repeatedly inserted and extracted in a way of being guided by a guide provided on an endoscope separately and independently therefrom along an outside of an insertion portion of the endoscope while using the endoscope without drawing it out, the endoscope incorporating an air supply path, a light source, a CCD camera, and a forceps channel and including the insertion portion and an maneuvering portion, characterized in that provided is the external forceps channel capable of repeatedly extracting a foreign substance larger than a bore diameter of the incorporated forceps channel in a way of being guided by the guide along the outside of the endoscope, together with the whole external forceps channel itself in a state where the foreign substance is grasped by forceps inserted through the external forceps channel, and that provided is the external forceps channel capable of being repeatedly inserted in a way of being guided by the guide along the outside of the endoscope in a state where the endoscope is not drawn out.

A surgical instrument for performing surgery includes a housing defining an axial bore. A lock is slidably disposed in the transverse bore to engage and disengage a tube adaptor. A latch extends from the lock to move the latch into and out of the axial bore. The lock and latch allow for interchangeability of tip assemblies inserted into the surgical instrument. A first and second handle are pivotally attached to the housing. A first ratchet member is rotatably attached to the first handle and includes serrated teeth. A second ratchet member extends from the second handle. The second ratchet member including a finger for engagement with the serrated tooth to prevent movement of said first handle relative to the second handle. The first ratchet member is rotatable about the rotational axis to disengage from the second ratchet member and allow the first handle to move relative to the second handle.

The invention provides a surgical device which can control a position and an attitude of a multi degree of freedom type grip portion (forceps) in a dummy manner on the basis of an operation of an operator in an operating portion. In a surgical device provided with a leading end joint portion having a leading end grip portion, a near-side joint portion having an operation portion, a handle portion supporting the operation portion, and an arm portion storing a wire for linking motions of the leading end joint portion and the near-side joint portion, the leading end joint portion is moved downward and upward by operating the operation portion and the handle portion upward and downward around the near-side joint portion, and the leading end joint portion is moved rightward and leftward by operating the operation portion and the handle portion leftward and rightward, thereby making the leading end joint portion execute a swing motion, and the leading end grip portion is opened and closed by opening and closing finger rests of the operation portion.

A surgical system or assembly for performing cardiac surgery includes a surgical instrument; a servo-mechanical system engaged to the surgical instrument for operating the surgical instrument; and an attachment assembly for removing at least one degree of movement from a moving surgical cardiac worksite to produce a resultant surgical cardiac worksite. The surgical system or assembly also includes a motion tracking system for gathering movement information on a resultant surgical cardiac worksite. A control computer is engaged to the attachment assembly and to the motion tracking system and to the servo-mechanical system for controlling movement of the attachment assembly and for feeding gathered information to the servo-mechanical system for moving the surgical instrument in unison with the resultant surgical cardiac worksite such that a relative position of the moving surgical instrument with respect to the resultant surgical cardiac worksite is generally constant. A video monitor is coupled to the control computer; and an input system is coupled to the servo-mechanical system and to the control computer for providing a movement of the surgical instrument. The video monitor displays movement of the surgical instrument while the resultant surgical cardiac worksite appears substantially stationary, and while a relative position of the surgical instrument moving in unison with the resultant surgical cardiac worksite, as a result from the movement information gathered by the motion tracking system, remains generally constant. A method of performing cardiac surgery without cardioplegia comprising removing at least one degree of movement freedom from a moving surgical cardiac worksite to produce at least a partially stationary surgical cardiac worksite while allowing a residual heart section, generally separate from the at least partially stationary surgical cardiac worksite, to move as a residual moving heart part. Cardiac surgery is performed on the at least partially stationary cardiac worksite with a surgical instrument such as needle drivers, forceps, blades and scissors.

The invention discloses a linear suturing and cutting device. The linear suturing and cutting device comprises an upper forceps holder and a lower forceps holder which can be closed and opened mutually. The upper forceps holder comprises a nail anvil, the lower forceps holder comprises a nail cartridge rack, the nail cartridge rack is detachably provided with a nail cartridge, and the inside of the nail cartridge is sequentially provided with a nail cartridge hole which penetrates the surface of the nail cartridge and a nail pushing sheet which is arranged inside the nail cartridge and can slide relative to the nail cartridge hole; the inside of the nail cartridge is also slidingly provided with a trigger sheet, the trigger sheet is provided with a wedge-shaped nail pushing unit which can drive the nail pushing sheet to slide inside the nail cartridge hole, and the nail cartridge hole is inclined to the far end of the nail cartridge. Therefore, when the nail pushing sheet inside the nail cartridge sheet is pushed, the stress direction of the nail pushing sheet is identical to the extension direction of the nail cartridge hole, relatively high friction force between the nail pushing sheet and the inner wall of the nail cartridge hole can be avoided, so that the nail pushing sheet can be pushed more smoothly, and further the surgical difficulty can be reduced.

Ultrasonic forceps adapted for use in open surgical forceps. The device is provided in the form of traditional open surgery forceps or tweezers, and the transmitting rod which transmits ultrasonic vibration from a proximally located transducer to the distally mounted welding horn runs through a lumen in one of the arms of the forceps.

An endoscopic forceps instrument has an inserting portion to be inserted into a body cavity through an endoscope, a clevis, a pair of rivets, and a pair of opposing jaws. The clevis is coupled to a distal end of the inserting portion. The pair of rivets is coupled to the clevis. Each of the rivets has a tip end that is swaged in order to fix the rivet to the clevis. The pair of opposing jaws is pivotably coupled to respective rivets so as to be movable between an open position and a closed position. The pair of rivets is arranged in parallel to each other. Further, the pair of rivets is arranged such that the tip ends thereof, which are swaged and therefore having relatively low mechanical strength, are located and swaged at opposite sides of the clevis.

A clamp designed for use in the heart-surgery field for osteosynthesis following on sternotomy has a roughly C-shaped configuration with a core (11) terminating at opposite ends with hooks (12) set opposite to one another. In the centre, the said core (11) extends vertically according to a plane which is substantially perpendicular to the one on which the end hooks (12) lie, with a loop (13) which is elastically compliant. The said clamp is made of a so-called “shape-memory” metallic alloy, i.e., an alloy which is malleable at a low temperature and which re-acquires its original form at body temperature, exerting a semi-rigid compression on the ends or edges of the bones requiring synthesis.

Minimally invasive surgical devices and related tools are provided. The devices include image acquisition devices and forceps, scissors, clamps, ultrasound probes, lasers, cautery devices, staplers, knives, suturing devices, rivet drivers, ligation devices, aspiration devices, injection devices, biopsy devices, radiotherapy devices; and radioactive emitter loading devices. Other devices useful for internal procedures in a patient's body or for facilitating such procedures are also provided.

The present disclosure relates to a surgical instrument that includes a slidable shaft having a proximal and a distal end and a housing coupled to the shaft. The instrument includes an actuation assembly having a first lever and a second lever, each of the first and second levers being pivotably connected to the shaft. The instrument further includes an end effector assembly coupled to the distal end of the shaft, the end effector assembly having a pair of opposing jaw members. The instrument may have a drive rod disposed within the shaft and connected to a housing connection, the drive rod being operable by the actuation assembly to actuate the opposing jaw members between open and closed positions. A latching mechanism is operatively associated with the actuation assembly and drive rod for maintaining the jaw members in the closed position, the latching mechanism including a biasing member housed between a spring collar and a spring mandrel.

An endoscopic forceps includes a housing having a shaft extending therefrom for treating tissue. A longitudinal axis is defined through the shaft. An end effector assembly is operably coupled to a distal end of the shaft and includes a pair of first and second jaw members. A rotating assembly operably coupled to the shaft is configured to rotate the shaft and the end effector about the longitudinal axis. A drive assembly is configured to selectively and releasably engage the rotating assembly. Engagement of the rotating assembly with the drive assembly couples the rotating assembly to the shaft such that the shaft is rotatable about the longitudinal axis in a predetermined direction when the rotating assembly is rotated. And, disengagement of the rotating assembly from the drive assembly uncouples the rotating assembly from the shaft such that the shaft is non-rotatable about the longitudinal axis when the rotating assembly is rotated.

An electrosurgical system for sealing tissue is disclosed that includes an electrosurgical forceps. The forceps includes a drive rod and an end effector assembly coupled to the drive rod at a distal end thereof. The end effector assembly includes jaw members wherein longitudinal reciprocation of the drive rod moves the jaw members from a first position in spaced relation relative to one another to a subsequent position wherein the jaw members cooperate to grasp tissue therebetween. Each of the jaw members includes a sealing plate that communicates electrosurgical energy through tissue held therebetween. The jaw members are adapted to connect to an electrosurgical generator. The system also includes one or more sensors that determine a gap distance between the sealing plates of the jaw members and a pressure applicator coupled to the drive rod. The pressure applicator is configured to move the drive rod in a longitudinal direction. The system further includes a controller adapted to communicate with the sensors and to control the pressure applicator in response to the determined gap distance during the sealing process.

A penetrating endoscope provides visualization of organ or tissue structures or foreign objects in a body. The penetrating endoscope includes an elongate penetrating member, a complementary metal dioxide semiconductor (CMOS) image sensor and an objective lens. The CMOS image sensor is substantially planar and includes a plurality of pixels with a pixel signal processing circuit for generating a color image ready signal. The CMOS image sensor converts image light energy into electrical color image ready signal energy for transmission out of the body. The color image ready signal is viewed on a color image display. The CMOS image sensor is carried on the elongate penetrating member adjacent a distal end of the elongate penetrating member. The objective lens is also carried on the distal end of the elongate penetrating member on an optical axis and focuses an image corresponding to an endoscope field of view at an image plane intersecting the optical axis. The CMOS image sensor is mounted with the CMOS image sensor pixels disposed substantially in the image plane and on the optical axis. The penetrating endoscope may include end effectors such as cutters and forceps.