495results about "Surgical forceps" patented technology

A surgical instrument and associated method includes an end effector having an ultrasonic blade, a metallic jaw clamp, and a partially conductive tissue pad coupled to the jaw clamp. The tissue pad comprises a polymeric substrate with a conductive trace formed on the surface of the polymeric substrate. The polymeric substate may be formed from polytetrafluoroethylene (PTFE), and the surface of the PTFE substrate may be treated to improve adhesion of the conductive trace. The tissue pad is erodible during activation of the ultrasonic blade. The conductive trace may be a multilayer laminate. A method for constructing the surgical instrument includes forming the conductive trace on the surface of the polymeric substrate and securing the polymeric substrate to the metallic jaw clamp.

A surgical instrument unit including an external force detection function is provided. The surgical instrument unit includes a shaft including an end effector at a distal end thereof, a hollow base, and a deformable member supporting a root of the shaft within the base. The strain section includes a first layer of strain elements and a second layer of strain elements composed of multi-directional strain elements, each of the multi-directional strain elements supporting the root of the shaft with a plurality of legs sequentially arranged along a main axis direction of the shaft. The first strain elements are inclined by an amount corresponding to a predetermined angle θ with respect to a plane orthogonal to a long axis of the shaft, and the second strain elements are inclined by an amount corresponding to an angle -θ opposite to the angle of the legs of the first strain elements with respect to the plane.

A medical device that includes a handle including a first body and a second body that are movable relative to one another, and an actuator including a first housing movably coupled to the first body and a second housing movably coupled to the second body. The medical device is configured to move between an open configuration in which the first body is at least partially decoupled from the second body and the first housing is at least partially decoupled from the second housing, and a closed configuration in which the first body is coupled to the second body and the first housing is coupled to the second housing.

The invention relates to an electrosurgical instrument (10) for the thermal cutting of biological tissue, in particular of a patient. The instrument (10) comprises two jaws (15, 16), wherein at least one of the jaws (15) is configured to be moved towards and away from the other jaw (16). At least one of the jaws (15) comprises a thermal cutting element (22) having an electrically conductive cutting conductor (36) and an electrically conductive return conductor (37) which are electrically connected to each other. The cutting element (22) is arranged such that the cutting conductor (36) is thermally exposed at least on the side of the one jaw (15) facing the other jaw (16), and such that the return conductor (37) is surrounded by an insulation (34). The return conductor (37) comprises a lower electrical resistance than the cutting conductor (36) in the direction of the current flow, and preferably a higher thermal conductivity than the cutting conductor. In doing so, during the supply of electrical current to the cutting element (22), less heat and temperature are generated at the return conductor (37) than in the cutting conductor (36), and the return conductor (37) can be used for thermal dissipation.

A coupling device for a surgical instrument, a handle device for it, and corresponding assembly and disassembly methods. The device has a force transmission element defining a longitudinal axis with an offset connection element at its proximal end, and a handle part movable about a pivot axis perpendicular to the longitudinal axis. Having a coupling element with a recess for receiving the connection element and a slider element which cooperates with the coupling element and is configured to cooperate with the movable handle part and to move in the direction of the longitudinal axis. Receiving in a guide receptacle of the slider element such that it can move along a coupling axis, and the recess in the coupling element corresponds to the coupling axis. Having a notch connected to the recess. The coupling element can move along the coupling axis between at least one release position and one engaging position.

A medical device includes a handle, a shaft, an end effector, and a wire. The handle includes a rotatable knob and a longitudinally movable spool. The shaft extends from a distal end of the handle. The end effector is coupled to a distal end of the shaft. The wire extends from the handle, through the shaft, and to the end effector. Rotation of the knob rotates the wire independent of the shaft to rotate the end effector. Distal movement of the spool moves the wire distally independent of the shaft and transitions the end effector between at least a first configuration and a second configuration. Proximal movement of the spool urges the wire proximally. Urging the wire proximally deflects the deflectable portion in one or more directions.

The application provides a quick-change bone forceps, and relates to the technical field of medical apparatuses. The quick-change bone forceps comprises a forceps handle, a connecting rod, a driving assembly and at least two forceps head groups. One end of the connecting rod is connected with the forceps handle, and each of the forceps head groups is detachably connected with the other end of the connecting rod. Each of the forceps head groups comprises at least two forceps claws. When the connecting rod is connected with any of the forceps head groups, the driving assembly is drivingly connected with the forceps head group and can drive the forceps claws in the forceps head group to move close to or away from each other. The application only needs to equip the clinic with a plurality of different forceps heads, thereby reducing the number of instruments, saving postoperative arrangement time, avoiding omission and solving the problem of uneven clamping force distribution caused by the forceps head being closed at a certain angle.

A surgical instrument is disclosed and comprises a handle; an elongated shaft extending distally from the handle; and a fastener deployment system for deploying fasteners from the elongated shaft. The fastener deployment system includes a driveshaft disposed within the elongated shaft and the driveshaft includes an internal channel adapted and arranged to contain at least one fastener. A cross-section of the internal channel within a distal portion of the driveshaft includes at least one flat portion that forms at least one guide surface. A plurality of slots are formed in the distal portion of the driveshaft to form a flexible portion of the driveshaft corresponding to an articulable portion of the elongated shaft and, at least a portion of internal channel including the cross-section with at least one flat portion is disposed within the flexible portion of the driveshaft.

A surgical instrument that includes a shaft assembly and an articulation mechanism with an articulation link configured to couple to a tool assembly. The articulation mechanism includes a cam disk with at least two slots, and a drive plate with at least two cam members receivable in the corresponding at least two slots providing for articulation of the tool assembly.

Disclosed is an instrument assembly for a selected procedure. The procedure may include a dissection and neural monitoring. The instrument may be insulated to allow for a selected and precise electrical conductive path.

A surgical instrument for applying surgical clips to tissue comprises an end effector having first and second jaws that are movable between open and closed positions. The end effector is rotatably coupled to the shaft around at least one axis substantially perpendicular to the shaft. The instrument comprises a drive member configured for distal translation from the shaft into the end effector to deliver one or more clips to the first and second jaws. The instrument allows a surgeon, for example, to deliver one or more surgical clips onto tissue or vessels without having to exchange the instrument or to change the orientation of the jaws during clip advancement, which reduces disruption to the surgeon's workflow.

The medical system may include a display system and a control system. The control system may include a processing unit including one or more processors. The processing unit may be configured to display an image of a field of view of a surgical environment generated by the imaging component on the display system. The processing unit may be configured to generate a three-dimensional composite indicator of a position of an instrument outside the field of view of the surgical environment and display the three-dimensional composite indicator together with the image of the field of view of the surgical environment.

The utility model discloses a kind of in-vivo blood clot cutting net structures, including the outer tube structure being cooperated with endoscope, the middle tube structure being arranged in outer tube structure and being cooperated with outer tube structure, and the inner core structure being arranged in middle tube structure;Wherein, the middle tube structure can be inserted or pulled out along outer tube structure, the inner core structure can be inserted or pulled out along middle tube structure.This application provides a kind of in-vivo blood clot cutting net structure, can be inserted into human body by the channel of endoscope, and can be deployed into adjustable angle's fishing net structure in human body, can effectively and quickly complete the fishing and cutting of large blood clot, and need not repeat extraction and insertion endoscope, that is, improve the cutting efficiency of large blood clot, also avoid the pain that repeat extraction and insertion endoscope brings to patient.

Provided is a radiation detector that can allow an operator to more accurately identify a position of a body tissue into which radionuclides have been taken. A radiation detector (1) includes: a probe (10) which has a radiation detection element (20) housed therein and which is insertable into a body; a reporting part (30) provided to the probe (10); and a control part (50) configured to cause the reporting part (30) to operate in accordance with a result of detection of radiation, the detection being made by the radiation detection element (20).

A multi-jaw grasper is disclosed, with related systems and methods. An elongate structure extends from a handle having a control element to a grasping portion including an attachment segments and jaws. Each attachment segment is connected to a proximal end portion of a respective set of two of the jaws. The jaws contact one another at, and extending longitudinally outward from, a common location between the attachment segments. A linkage extending within the elongate structure connects the control element to a proximal end portion of at least one of the jaws such that movement of the control element causes movement of the jaws between a closed position where jaws extend alongside one another and an opened position where a distal end of the jaws are splayed apart.

An apparatus for holding a retractor arm including a connector attachable at a free end of a support arm. The connector including a housing extending with a receptacle, a holder block movably disposed in the housing, and a bumper block movably disposed in the housing. The holder block adjustable between a retracted position where a tip of the holder block is outside of the receptacle and a holding position where the tip is at least partially within the receptacle. The bumper block being biased in an expanded position such that the holder block is held in the retracted position by the bumper block and movement of the bumper block from the expanded position to a compressed position releases the holder block. The connector is adapted to receive a post disposed on a retractor arm, the post being loadable into the receptacle to cause the bumper block to move.

An instrument delivery unit includes a housing and an instrument storage device. The housing has an internal accommodating space and an instrument outlet in a side wall of the housing. A first transmission thread is provided on the housing, and a limiting guide portion is provided outside the housing. The limiting guide portion is fitted with a fixed member or structure and is configured to guide an axial movement of the housing and prevent a circumferential rotation of the housing. At least part of the instrument storage device is arranged in the housing, and an outer circumferential surface of the instrument storage device is provided with a helical accommodating groove for winding and storing the flexible body of the actuator unit. The instrument storage device is provided with a second transmission thread which is in transmission connection with the first transmission thread.

Locking assemblies for surgical clamping and cutting instruments include a locking member and a switch. A drive member may be configured to releasably engage a knife and / or a shuttle of the surgical instrument for translating the knife and / or shuttle in a distal direction through a firing stroke. The locking member is movable from a first position permitting distal translation of the drive member through the firing stroke, and a second position inhibiting distal translation of the drive member through the firing stroke. A switch, when proximally positioned, releasably engages the locking member to maintain the locking member in the first position. The switch disengages from the locking member when the switch is moved to a distal position.

The application relates to the field of medical devices, in particular to a bone surgery device based on artificial intelligence, which comprises an operating arm and a control system, the operating arm is provided with an executing mechanism for performing a surgery clamping operation, the executing mechanism comprises a driving assembly, a clamping assembly and a transmission assembly; the driving assembly is used for providing output power; the transmission assembly is connected with the driving assembly and transmits the output power to the clamping assembly to drive the clamping assembly to generate adaptive clamping force. The executing mechanism is also provided with a conveying mechanism for conveying a disinfecting medium, and the driving assembly is also used for driving the conveying mechanism to synchronously operate so that the disinfecting medium is conveyed to an operating area to perform disinfection treatment on the operating area. Through cooperation of the driving assembly and the clamping assembly, the clamping assembly can be fitted according to the special structure of a surgery site, and clamping of a special curved surface of a bone is realized.

A medical device includes an endoscope and an endoscopic treatment instrument. An insertion portion of the endoscope includes a treatment instrument lumen and a curved part. The endoscopic treatment instrument includes a tube including a knife wire lumen, a knife wire housed in the knife wire lumen, and a support member. The knife wire includes a first wire part including an exposed part, and a second wire part. In a state in which the endoscopic treatment instrument is inserted into the treatment instrument lumen and a portion of the knife wire that extends a predetermined distance from a position of a distal end of the exposed part exposed from the tube to a proximal end side is projected from an opening in the insertion portion, a distal end of the second wire part is located distally relative to a proximal end of the curved part.

Surgical instruments, particularly retractors, configured to be operated manually by the user's thumb and other fingers. Specifically, a pair of handles, grasped by the thumb and other fingers and acted toward each other, exert force on a first output element and a second output element, which can, for example, provide retraction of the surgical site.

A medical manipulator includes a flexible shaft, a distal-end portion, an operating unit with which the distal-end portion is operated, a wire transmitting a motive force of the unit to the distal-end portion, a coil formed from a material having a greater rigidity than the shaft and one end thereof being secured to the distal-end portion and the other end thereof being secured to the unit, and a tube having a greater bending rigidity than the coil. The unit includes a socket connected to the shaft, a ball relatively rotatable to the socket, and a handle with which the wire is pushed / pulled in the longitudinal direction, the coil is disposed at a position at which the coil covers an area surrounding the wire, and the tube is disposed at a position at which the tube covers an area surrounding the coil in spaces in the socket and the ball.

The application relates to a handle of a surgical instrument and an anastomat, which comprises a mounting shell, a movable handle, a rack slider and a pawl. The mounting shell is formed with a fixed handle part; the movable handle is rotatably connected to the mounting shell and is arranged at least partially inside the mounting shell; the rack slider is slidably arranged in the mounting shell, the proximal end of the rack slider is configured with a plurality of spaced teeth, and the distal end of the rack slider is configured with a limiting structure; the pawl is rotatably connected to one end of the movable handle arranged in the mounting shell, and the pawl is selectively connected with the limiting structure or the teeth; when the pawl is connected with the limiting structure, the movable handle can drive the rack slider to reciprocate through the pawl; when the pawl is connected with the teeth, the movable handle can drive the rack slider to make one-way movement to the distal end through the pawl. The handle can realize the closing and opening of the jaws of the anastomat in the unfired mode and the switching between the unfired mode and the fired mode by changing the connection position of the pawl and the rack slider.

A medical instrument (10) comprises a first component (33) designed and configured to transmit at least either a force or a torque from a proximal end region (14) to a distal end region (12) of the medical instrument (10) and which is electrically conductive, a second component (20), a connection point (61) that mechanically connects the first component (33) and the second component (20), and an electrical contacting device (45; 46) for contacting the first component (33) and for introducing an electric current to transmit electrical power to the first component (33). The first component (33) is designed and configured to conduct the electric current to transmit electrical power and to heat the connection point (61) to release the mechanical connection between the first component (33) and the second component (20).

A self-actuated grasping device and a corresponding method for retrieving a foreign body from a location within a patient using the grasping device. The grasping device comprises a handle with a self-actuating mechanism, an actuator coupled to an actuator line on the handle, an elongated shaft member extending distally from the handle, and opposing jaws at the distal end of the elongated shaft member, wherein the actuator line is coaxially disposed within the elongated shaft member, and the opposing jaws are coupled to the actuator line and pivot between an open configuration and a closed configuration. The self-actuating mechanism has a biasing member that applies a closing force to the opposing jaws via the actuator line, and actuation of the actuator is configured to apply an opening force to the opposing jaws via the actuator line.

Surgical instruments that facilitate articulation of a scraping tool within a surgical space (e.g., a vertebrae), and are configured to remain locked in position when scraping and removing tissue. The surgical instruments include a handle and a retention shaft that insertably engages the handle. The retention shaft includes a split distal end having flexible first and second portions that include means for securing a removeable tip therebetween, the tip being configured to scrape / remove tissue and insertably engage the split distal end between the first and second portions. A pivot lock mechanism engages the handle and receives the retention shaft therein with means for moving same axially. The surgical instrument is moveable between an unlocked state in which the tip is moveable relative to the split distal end when secured therein, and a locked state in which the tip is not moveable relative to the split distal end when secured therein.