30 results about "Ultrasonic Surgery" patented technology

An ultrasonic surgical instrument includes an end effector including an ultrasonic blade, an ultrasonic waveguide, an ultrasonic transducer assembly, and a carrier. The acoustic waveguide includes at least a proximal portion thereof extending along a longitudinal axis. The ultrasonic transducer assembly includes a fixation member and is operatively connected to the acoustic waveguide such that the acoustic waveguide is in acoustic communication with an ultrasonic transducer. The carrier has at least a portion thereof engaged with the fixation member of the ultrasonic transducer assembly thereby inhibiting movement of the ultrasonic transducer assembly relative to the carrier. The carrier movably supports the ultrasonic transducer assembly along the longitudinal axis such that the ultrasonic transducer assembly is configured to move from a proximal position on the longitudinal axis to a distal position on the longitudinal axis for inserting the ultrasonic blade into a patient.

A discectomy method entails removing at least a portion of a spinal lamina to form an access path in a patient. A surgical instrument is inserted along the path and a distal end of the instrument is placed in operative contact with herniated or bulging disc material of a spinal disc. The instrument is operated to remove the herniated or bulging disc material, to thereby space a remaining portion of the spinal disc from spinal nerves. A tip of an ultrasonic surgical probe is then placed into contact with an outer surface of the remaining portion of the spinal disc, and an ultrasonic mechanical standing wave generated in the probe while maintaining the operative tip in contact with the outer surface to harden the wall surface and thereby reduce chances of disc herniation at the outer surface.

An ultrasonic surgical device comprising of a proximal end and a distal end to be used in a robotic surgical system. The distal end comprises of a first jaw with an ultrasound transducer array and a second jaw with either a reflecting surface or an ultrasound transducer array. The distal end is configured to grasp a blood vessel or a living tissue. The proximal end is configured to apply a drive signal to the ultrasound transducer array. A plurality of rotary joints is connected at the distal end to facilitate its articulation. The ultrasound transducer array, generates acoustic vibrations in the grasped blood vessel, or living tissue, based on the applied drive signal by a control system of the robotic surgical system. The ultrasound transducer array, is configured to sense parameters of a target site on a grasped blood vessel or living tissue, based on the reflected acoustic vibrations.

The invention relates to the technical field of ultrasonic scalpels, in particular to an ultrasonic scalpel for pediatric surgery, which comprises a handle part, and a beveling blade surface, a main blade surface and an auxiliary blade surface which are arranged on the handle part, the auxiliary blade face extends from the cutter head end to the tail end to form a second transition blade face, the second transition blade face is designed to be an inwards-concave arc face, an assembling groove is formed in the handle portion, a capsule type flushing head is rotationally installed in the assembling groove in a damping mode, the capsule type flushing head is in a notch shape, and the capsule type flushing head is connected with the auxiliary blade face. The two ends of the capsule type flushing head are the output end and the tail end respectively, an open window communicated with the assembling groove is formed in the outer wall of the arc face of the second transition blade face, the output end of the capsule type flushing head is allowed to rotate out through the open window, and a first straight pipeline is arranged in the handle part in the direction from the cutter handle to the cutter head. The three-effect integrated function of debridement crushing, flushing dosing and waste liquid suction is achieved, flushing dosing can be conducted in time after debridement crushing, and a flushing channel in the tool bit is perfected.

An ultrasonic surgical tool system with a tip capable of simultaneously vibrating in plural modes. The system includes a console capable of supplying a drive signal to the tip that includes plural components. Each component has a frequency characteristic that is based in part on the equivalent of current through the mechanical components of the tip. The frequency components are different from each other. Based on the application of drive signal the tip undergoes non-linear vibrations.

A method and system for estimating a 3D pose of an ultrasound probe based on acquired 2D ultrasound images. During surgery, the 3D probe pose is projected to a corresponding 2D location on the 2D laparoscopic image. An ultrasound probe is placed at / near a selected one of the 3D probe poses to acquire a 2D ultrasound image from which an anatomical structure (AS) is detected and used to generate an AS mask (ASM). The 3D probe pose of the ultrasound probe is estimated based on the ASM using an ASM pose mapping model and used to generate an optimal 3D probe pose estimate.

The application discloses a multifunctional surgical dissector, which comprises a hollow shell, an electrode knife head, a PCB board, a high-frequency electrotome conductive sheet, an ultrasonic input conductive sheet, an ultrasonic output conductive sheet, a function switching knob and an ultrasonic transducer. The function switching knob is rotated to control the conduction route. When the function switching knob is rotated to the high-frequency electrotome conductive sheet and the ultrasonic input conductive sheet and the ultrasonic output conductive sheet are all conducted, the electrode knife head can have high-efficiency cutting of the high-frequency electrotome, and can significantly reduce tissue adhesion and thermal damage by using the vibration characteristics of the ultrasonic surgical knife, thereby improving the operation efficiency. When the function switching knob is rotated to only connect the high-frequency electrotome conductive sheet, the device can be used as a high-frequency electrotome alone. When the function switching knob is rotated to only connect the ultrasonic input conductive sheet and the ultrasonic output conductive sheet, the device can be used as an ultrasonic surgical knife alone, so that the device has multiple functions and is suitable for various surgical environments.

The invention discloses a dual-power supply system for a surgical ultrasonic knife, and the system comprises a power plug which is connected with an AC / 220V power supply; the ultrasonic knife equipment power switch is connected between the power plug and the ultrasonic knife equipment and is manually turned on; the battery charger is connected between the power plug and the standby battery; a standby battery charged by the battery charger; and the inverter power supply is connected between the standby battery and the ultrasonic knife equipment and provides alternating current power supply for the ultrasonic knife equipment. When the AC / 220V alternating current power supply supplies power, the ultrasonic scalpel equipment works normally, meanwhile, a battery of the standby inverter power supply is automatically charged, when the AC / 220V alternating current power supply is powered off, an external power supply of the ultrasonic scalpel equipment is powered off, the standby inverter power supply is automatically started, DC / 12V electricity of the battery is converted into AC / 220V alternating current to be continuously used by the ultrasonic scalpel, the operation process is not affected, and the ultrasonic scalpel can be used continuously. The problem of sudden power failure in an ultrasonic scalpel operation or power failure before the operation is solved, and normal operation of equipment under unforeseen circumstances is ensured.

A surgical needle assembly for attachment to an ultrasonic handpiece includes an elongated metal cannula having a distal end and a proximal end. A hub is insert molded onto the cannula generally towards the cannula proximal end and formed from a material having an ultimate strength at least twice a peak cyclical stress force at a joint between the elongated metal cannula and the hub when the surgical needle assembly is in use with the ultrasonic handpiece. The hub material has a stiffness sufficient to limit a motion of the elongated metal cannula to less than 1.5 times an expected peak to peak stroke length when the surgical needle assembly is in use with the ultrasonic handpiece. The hub includes structure for mating attachment to the ultrasonic handpiece.

A surgical instrument includes an end effector having a clamp arm pivotable relative to an ultrasonic blade, an articulation section configured to deflect the end effector, an acoustic waveguide having a distal portion extending along an axis, a clamp arm closure assembly comprising a body configured to actuate in order to drive the pivoting of the clamp arm, and a clamp arm clocking assembly. The clamp arm clocking assembly is capable of driving rotation of the clamp arm about the axis relative to the ultrasonic blade between a first clocked position and a second clocked position. The clamp arm clocking assembly includes a rotating body pivotally coupled with the clamp arm, a translating drive extending through the articulation section, and a rotation driver assembly. The rotation driver is in communication with the translating driver to convert translational motion of the translating driver into rotational motion of the rotating body.

The invention provides a universal bendable bionic ultrasonic scalpel, and relates to the technical field of scalpels. The universal bendable bionic ultrasonic scalpel comprises a transducer assembly, a scalpel rod assembly, a bionic waveform scalpel head assembly, a bending assembly and a driving assembly, the scalpel rod assembly is connected with the transducer assembly, the scalpel head assembly comprises a scalpel head of a bionic waveform tooth structure, the scalpel head is connected with the scalpel rod assembly, and the bending assembly is connected between the scalpel head assembly and the scalpel rod assembly. The driving assembly is connected with the transducer assembly and is configured to drive the bending assembly to bend; wherein the bending assembly comprises a plurality of movable joints, and every two adjacent movable joints in the movable joints are arranged in a hinged mode. According to the universal bendable bionic ultrasonic scalpel, the bending function can be achieved, the flexibility of an operation can be improved, the operation range of the operation can be widened, the scalpel head of the scalpel head assembly is of a bionic waveform tooth structure, the local stress concentration and the cavitation effect of the ultrasonic scalpel are enhanced, the transmission efficiency of interface energy is improved, and therefore the cutting efficiency is greatly improved.

A reusable ultrasonic scalpel comprising a handle assembly and an ultrasonic waveguide extended to the distal end transmitting ultrasonic mechanical energy. Outside the ultrasonic waveguide is a sheath assembly, and the sheath assembly is detachably connected to the handle assembly by a quick connecting mechanism. The beneficial effects are mainly reflected on: reliable installation, easy to disassemble, easy to clean and disinfect. The sheath assembly serving as a consumable may be quickly replaced, while the remaining parts may be reused, and may undergo cleaning and high temperature steam sterilization. Thus, the cost of surgical consumables is greatly reduced, the burden on patients is reduced, and the risk of cross-infection when using the ultrasonic scalpel bar is also reduced.

A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The body comprises a pivotal trigger. The shaft couples the end effector and the body together. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade is operable to deliver ultrasonic vibrations to tissue. Pivotal movement of the trigger causes movement of the clamp arm. The trigger includes a compliant feature configured to limit the amount of force delivered to tissue by the clamp arm. The flexible feature may comprise a flexible band, living hinge, a series of living hinges, or a flexible tab.

An ultrasonic surgical instrument including an ultrasonically actuated blade or end effector having a treatment portion. The blade can define a central axis and at least one axis which is transverse to the central axis, wherein the transverse axis can lie within a plane which is perpendicular, or normal, to the longitudinal axis and can define a cross-section of the treatment portion. Such a cross-section can include a central portion and a step extending from the central portion, wherein the central portion can comprise a width, and wherein the step can comprise a cutting edge. In at least one embodiment, the cutting edge can be defined by first and second surfaces which define an angle therebetween. In various embodiments, the position of the cutting edge and / or the angle between the cutting edge surfaces can be selected in order to balance the blade with respect to the transverse axis.

Ultrasonic surgical instrument having a handle assembly, a waveguide extending distally from handle assembly, an end-effector at distal end of the waveguide, and a clamp assembly removably mounted to the handle assembly. The clamp assembly includes a pivotally mounted clamp arm for pivotal movement with respect to the end effector, and is removably mounted to the handle assembly by axially aligned first and second bayonet mounts. Each of the bayonet mounts includes a female bayonet coupling having at least one bayonet slot configured to matingly receive a bayonet mounting pin of a male bayonet coupling, wherein the bayonet slots extend circumferentially about the longitudinal axis of the waveguide. A method of removing the clamp assembly of the ultrasonic surgical instrument is also provided, as well as an ultrasonic surgical shears instrument and a clamp assembly.

The invention relates to the technical field of medical instruments, in particular to a torque wrench for an ultrasonic surgical suction operation, which comprises a rotating shaft, a handle shell and an ejector rod, the torque wrench can be switched between a torsion state and a force release state; in a torsion state, the clamping groove is matched with the limiting end to limit the axial rotation of the rotating shaft; in the force release state, the clamping groove rotates along with the rotating shaft so that the clamping groove can extrude the limiting end, the limiting end overcomes the elastic force to be disengaged from the clamping groove, and limitation on axial rotation of the rotating shaft is relieved. Compared with the mode of warning that the torsion reaches the standard through clicking in the prior art, the mode in the embodiment is undoubtedly more visual and reliable, and then the situation of excessive torsion can be avoided. The torque wrench is simple in structure, supports high-temperature, high-pressure, plasma and ethylene oxide disinfection, and is convenient for doctors to use.

The application discloses an ultrasonic scalpel rod, which comprises a waveguide rod, an inner tube and an outer tube, the outer tube is sleeved outside the inner tube, the inner tube is sleeved outside the waveguide rod, the inner tube and the outer tube comprise a plurality of tube materials, the plurality of tube materials are connected in a head-to-tail mode, and the two ends of any tube material are provided with connecting portions; the two connecting portions are a first connecting portion and a second connecting portion; the second connecting portion of a previous tube material is sleeved on the first connecting portion of a subsequent tube material; the two adjacent tube materials are connected in a mode of welding or glue bonding or a combination thereof; or the inner tube or the outer tube is integrally formed. The inner tube and the outer tube of the ultrasonic scalpel rod are manufactured in a segmented combination connection mode or an integrally formed manufacturing mode, the method of hole expansion is avoided, continuous expansion of the tube wall is prevented, the tube wall of the scalpel rod is protected, and the sealing property of the scalpel rod is improved. The application further discloses a surgical instrument, which comprises an ultrasonic scalpel main machine, an excitation switch and an ultrasonic scalpel, and the ultrasonic scalpel comprises the above ultrasonic scalpel rod.

Example embodiments disclose a scalpel rod assembly of an ultrasonic scalpel. The scalpel rod assembly includes a scalpel rod, an inner tube, and a support ring; the inner tube is sleeved outside the scalpel rod; the support ring includes a first support body, the first support body is provided on the inner wall of the inner tube, and a first protrusion protrudes from the first support body in a direction away from the inner tube until the first protrusion abuts against the scalpel rod.

The present invention discloses an ultrasonic scalpel head. The projection of the scalpel head on the shear plane is banana-shaped and curved. From the proximal end to the distal end, the thickness of the scalpel head first becomes thicker, then thinner, then thicker again and then thinner. The projection perpendicular to the shear plane is in the shape of a fruit knife. The height of the scalpel head first becomes lower, and then gradually decreases, and there is an arc-shaped cutting groove at the middle position. The present invention can cause an increase in the swing amplitude of the bending direction of the scalpel head and the effective working length. There is a boat-shaped or arc-shaped balance cutting groove between the most distal node of the ultrasonic scalpel head and the tip of the scalpel head to improve the stability of ultrasonic vibration.

The utility model provides an ultrasonic clamp holder. The ultrasonic clamp holder comprises an ultrasonic knife and a clamping arm arranged on the outer side of the ultrasonic knife in a sleeving mode. A gripper arm is pivotable relative to the ultrasonic blade to effect closing and opening of the gripper. And the rear part of the clamping arm is provided with two arc-shaped block bodies which are oppositely arranged. And the front part of the clamping device is a strip-shaped block body. The long-strip-shaped block body extends forwards from the arc-shaped block bodies, and the long-strip-shaped block body protrudes out of the tops connected with the two arc-shaped block bodies. The maximum thickness of the long-strip-shaped block body is 1.5-2 times of the thickness of the top connecting the two arc-shaped block bodies. And when the clamping arm and the ultrasonic knife are in a closed state, the maximum size after the clamping arm and the ultrasonic knife are overlapped is smaller than or equal to 3.5 mm. The size of the operation end of the holder is small, so that the holder can adapt to ultrasonic surgery of small-size patients, such as children.

A kind of robot ultrasonic scalpel clamping force self-adapting control system and method, the control system includes initialization setting module, current acquisition module, standard current judging module, limit angle judging module and control module.Initialization setting module is used to initially set the clamping force conversion coefficient of the robot ultrasonic scalpel, maximum clamping force, maximum current value and the limit angle when ultrasonic scalpel is used.When the instant current value is less than the maximum current value, the control module drives the motor to work.When the instant current value is greater than or equal to the maximum current value, the control module drives the motor to stop working.When the limit angle judging module obtains completion cutting work, the control module drives the motor to stop working.The present control system can guarantee cutting off entire muscle tissue, and also can guarantee that blood vessels in muscle tissue are all sintered closed by ultrasonic wave.

The surgical handpiece includes a motor having a torsional transducer assembly along a central axis of the surgical handpiece. The motor is configured for operative connection to a power source. The torsional transducer assembly includes a plurality of torsional transducers. Each torsional transducer has a support band surrounding the torsional transducer. The surgical handpiece includes a surgical attachment having a first end removably connected to the motor and a second end defining a working plane for engagement with biological tissue.

A surgical apparatus includes a body assembly, a shaft, an acoustic waveguide, an articulation section, an end effector, and a rigidizing member. The shaft extends distally from the body assembly and defines a longitudinal axis. The acoustic waveguide includes a flexible portion. The articulation section is coupled with the shaft. A portion of the articulation section encompasses the flexible portion of the waveguide. The articulation section includes a first member and a second member. The second member is longitudinally translatable relative to the first member. The end effector includes an ultrasonic blade in acoustic communication with the waveguide. The rigidizing member is configured to selectively engage at least a portion of the articulation section to thereby selectively provide rigidity to the articulation section.

The present invention discloses an ultrasonic scalpel handle key recognition circuit and recognition method thereof, comprising a carrier signal generating circuit and a signal amplitude detection circuit. The carrier signal generating circuit includes an FPGA and a signal amplification circuit. A third capacitor is connected in series between the carrier signal generating circuit and the signal amplitude detection circuit. The signal amplitude detection circuit includes four operational amplifiers, each with an inverting input electrically connected to the third capacitor and a non-inverting input electrically connected to four nodes of five series resistors. The signal output of the carrier signal generating circuit is electrically connected to a key signal sampling device in a conversion isolation manner. The key signal sampling device includes a key signal sampling circuit and an electrical connector connected to the handle key recognition circuit. The electrical connector adopts a two-electrical connection terminal structure. The circuit structure is simple, can control and identify the corresponding key state, reduce electromagnetic interference, and improve the stability and reliability of the ultrasonic scalpel.

An end effector assembly of an ultrasonic surgical instrument includes an ultrasonic blade configured to mechanically couple to an ultrasonic transducer configured to transmit ultrasonic vibration energy to the ultrasonic blade and a jaw member movable relative to the ultrasonic blade from a spaced-apart position to an approximated position for clamping tissue therebetween. The jaw member includes a structural body and a jaw liner engaged with the structural body. The jaw liner defines a tissue contacting surface positioned to oppose the ultrasonic blade in the approximated position, and includes a wear indicator disposed within the jaw liner and configured to provide an alert indicating that the jaw liner is worn beyond a pre-determined threshold.

1. Name of the Design Product: Ultrasonic Scalpel. 2. Use of the Design Product: For pet surgical operations with ultrasonic cutting and electrocision functions. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph Most Indicating the Design Key Points: Perspective View.