79results about "Endoscopic cutting instruments" patented technology

A laryngoscope includes a curved blade including a proximal end, a distal end, and a first channel. The laryngoscope also includes a handle and a second channel. The handle includes a non-electric light source, e.g., a chemiluminescent light source. A catalytic agent in the chemiluminescent light source is activated by pressure on the chemiluminescent light source to generate light that transmits along the first channel. The second channel is disposed proximate and through the blade and configured to provide at least one of oxygen, suction, and an instrumentation into the proximal end and out of the distal end of the blade.

An apparatus for use in preparing the intervertebral disc space. The apparatus includes a powered disc cutter that can be inserted through a tube and into the disc space. Once inside the disc space, the cutter can be rotated on its axis and articulated through the disc space to break up and disconnect the disc tissue from the surrounding disc tissue and disc annulus. The device is powered by a handheld driver that utilizes a motor to impart motion, such as rotary motion, to an elongated shaft assembly having a cutting tool or assembly pivotably attached to the distal end thereof. The cutting tool is mounted to the end of the drive shaft assembly by a linkage so that the shaft may be inserted in a straight configuration down a narrow access port. The cutting assembly can spin on its axis while being articulated providing access to the intervertebral space.

Medical cutting devices having static components, working blade bodies, rails, struts, channels for fluid and gas flow, and hand-piece and robotic arm attachment capabilities are disclosed. According to an aspect, a cutting device includes a working blade body being configured for operable connection to a source of movement. The cutting device also includes a static component being configured for operable connection to the source of movement. The static component comprises at least one rail, wherein the at least one rail extends substantially the same length as the working blade body.

A uterine manipulator can include a shaft including a first end, a second end, and embodiments of a cutting head configured and arranged to receive a cervix. The cutting head can be configured and adapted to be used to cut the tissue joining the vaginal wall to the cervix and uterus to facilitate removal of the uterus in a minimally invasive manner.

A tissue specimen removal device comprises a specimen bag; a flexible ring, the flexible ring configured to form a top opening of the specimen bag; a cannula assembly comprising: an inner tube portion and an outer tube portion. The device may further comprise a connector carrier, the connector carrier configured to retain at least one connector housing, the at least one connector housing comprising one or more connector portions and reside within an interior of the connector carrier, and wherein the connector carrier can be moved from a position within the cannula assembly to outside the cannula assembly.

The medical device includes a flexible catheter including a distal end, at least one lumen, and a longitudinal axis, a cutting device coupled to the distal end of the catheter, and a distal tip coupled to and projecting from the cutting assembly. The cutting device includes one or more electrodes for creating an incision through the pericardium. A method of improving cardiac function in a heart of a subject having cardiac dysfunction includes creating at least one incision length through the pericardium and reducing pressure applied to the heart by the pericardium.

The present disclosure relates to a device assembly and a method for treating heart failure by normalizing elevated blood pressure in the left atrium of a heart of a mammal. Disclosed herein is a transcatheter interatrial septum excision device assembly configured to create a sized interatrial aperture between the right and left atria of a heart for the relief of elevated left atrial pressure. The device assembly comprises a delivery catheter, a tissue stabilizer attached to a first catheter having a central lumen and a penetrating tip that permits passage of a guidewire, and a cutter attached to a second catheter having a central lumen that permits passage of the first catheter. Alternative configurations comprise a (third) catheter having a central lumen that permits passage of the aforementioned components to and from the right atrium, a tissue retention mechanism and an optional coaxial alignment mechanism.

A medical device can include a sheath and an expandable member. The expandable member can include a support member and a liner coupled to the support member. The liner can include a plurality of teeth. Proximal movement of the sheath can be configured to expose the expandable member such that the expandable member transitions from a constrained configuration to an expanded configuration.

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.

A system and method for cutting soft tissue with a retractable surgical cutting device. The device includes a handle, an actuator on the handle, and a sheath attached to the handle, wherein the sheath surrounds a shaft, a distal end of the shaft having a blade attached. The device also includes a drive and locking mechanism connected to the actuator and the shaft within an interior space of the handle, wherein the drive and locking mechanism is configured to move the shaft in a first direction and lock the shaft in a first shaft position in response to movement of the actuator in one of a first direction or a second direction, and wherein the drive mechanism is configured to move the shaft in the second direction and lock the shaft in a second shaft position in response to movement of the actuator in the other of the first direction or the second direction.

Aspects of the present disclosure include an inflatable balloon or other expandable element to articulate a working end of a tissue ablation probe in tissue ablation systems, devices, and methods.

A surgical system includes an integrated power console configured to power a motor of a cutting device and monitor feedback from during use to indicate the condition of the motor. The system includes a disposable cutting tool having a shaft engageable within the cutting device and supporting a cutting head for rotation with the shaft to cut tissue or bone. The disposable cutting tool includes: a shaft assembly configured to lock the disposable cutting tool onto the cutting device; a proximal connector configured to align the shaft with an output shaft of the motor; and one or more components that presents a unique identification property for tool identification and / or erodes during a sterilization process to negatively affect rotation of the shaft such that the user can identify or the IPC alerts the user that the disposable cutting tool is compromised and needs to be replaced.

A torque coil (two-layer coil structure) of the disclosed embodiments includes an inner coil formed by spirally winding metal wire, and an outer coil arranged to be in close contact with the outer periphery of the inner coil and formed by spirally winding metal wire. A winding direction of the inner coil and a winding direction of the outer coil are opposite from each other, and when the torque coil is twisted in the circumferential direction in which the diameter of the inner coil is increased, a change amount of the diameter of the outer coil is larger than a change amount of the diameter of the inner coil. The two-layer coil structure has high twisting rigidity, thus suppressing the occurrence of kinks due to rotational resistance.

A trocar assembly includes a head; an elongated tubular structure, having an open proximal end and an open distal end; a stationary cutting component, incorporating a large cutter having two sharp sid

Several exemplary cutting devices for making an incision through the pericardium or the epicardial layer of the pericardium are described. These examples share the feature of being deployed intravascularly, through the RAA, IVC, SVC, or via a subxiphoid approach.

The device includes a capture assembly, a hollow member, a tube, and a control member. The assembly includes a capture sleeve received on the distal end of the insertion device and a flange mounted on the insertion device proximal to the sleeve. The hollow member, tube, and control member each have a proximal end accessible to the user. The tube pushes the sleeve distally away from the insertion device as the tube advances distally through the hollow member. The control member includes a distal end that forms a connected loop around the distal opening of the sleeve. The loop moves between a tightening configuration in which at least a portion of the loop is pulled proximal into the tube and an opening configuration in which the loop extends distally from the tube, opening the loop and the distal opening of the sleeve.

An irrigation sleeve (78) for use with a surgical system (40) comprises an irrigation source (68), a rotary instrument (50) having a tube (60) extending to a distal tube end (62), and a cutting accessory (52) having a head (64) and a shank (66) extending from the head (64) and adapted to be rotatably supported by the tube (60) of the rotary instrument (50). The irrigation sleeve (78) comprises a sleeve body (86) extending between a proximal sleeve end (86P) and a distal sleeve end (86S), a first lumen (88) formed in said sleeve body (86) for receiving at least a portion of the tube (60) of the rotary instrument (50) with the head (64) of the cutting accessory (52) arranged adjacent to said distal sleeve end (86S), and a second lumen (90) formed in said sleeve body (86), spaced from said first lumen (88), and comprising a proximal lumen region (92) and a distal lumen region (94). Said proximal lumen region (92) extends from a lumen inlet (96) adapted for fluid communication with the irrigation source (68) to a lumen transition (98), and said distal lumen region (94) extends from said lumen transition (98) to a lumen outlet (100) arranged to direct fluid adjacent to the head (64) of the cutting accessory (52). Said proximal lumen region (92) has a generally crescent-shaped profile and said distal lumen region (94) has a profile different from said crescent-shaped profile of said proximal lumen region (92).

The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to a tissue traction device, e.g., for endoscopic tissue dissection. For example, a tissue traction device may include a first clip comprising opposable jaws. The device may include a traction band having a first end, a second end, a length therebetween and extending along a longitudinal axis. The band may have a first aperture at the first end. A second aperture may be at the second end of the band. A first jaw of the opposable jaws of the first clip may be disposed through the first aperture.

A tissue retractor, comprising a sheet of shape memory material having a perimeter, and a plurality of anchors disposed about the perimeter configured to engage tissue, wherein the sheet is movable between a rolled configuration and a substantially planar configuration.

A uterine tissue resection system may include a housing enclosing a power source such as a battery, a motor, and a control board for regulating power to the motor and the battery. Extending distally from the housing may be a cutting assembly comprising an outer cutting tube with an inner cutting tube received therein. The inner cutting tube may be fluidly coupled to an external suction source through a swivel connection interface. The housing may further contain a drive assembly connecting the inner cutting tube to a driveshaft of the motor so that rotation of the driveshaft results in simultaneous rotation and reciprocation of the inner cutting tube.

A process and system provides for atraumatic preparation of morselized Tissue Particles (TP)s, such as Full Thickness Skin Graft Particles (FTSGPs), cartilage particles and other organ tissue particles, in a liquid medium. The resultant tissue product may be a suspension of Tissue Particles in an aqueous solution and containing highly viable cells and may be rapidly prepared at bedside or in the operating room and conveniently delivered to a patient through a syringe or similar applicator. The morselized Tissues Particles may be used for surgical applications including wound healing, cosmetic surgery, and orthopedic cartilage repairs.

A medical instrument, in particular for percutaneous surgical / medical procedures, including a handle portion designed to allow handling, orientation and manipulation of the medical instrument by an operator, and an elongated rod member secured to the handle portion. The elongated rod member extends from the handle portion up to a distal end. At least one portion of the elongated rod member, proximate to the distal end, is provided with a marking distinguishable under sonography. The marking is designed as a rotationally asymmetric marking configured to allow a location and a rotational orientation of the elongated rod member to be uniquely detectable in sonographic imagery. The marking includes first and second rotationally asymmetric markings extending in opposite directions along the elongated rod member.

A surgical device for cutting or shaving bone or tissue includes a housing having an elongated tube extending therefrom, the elongated tube configured to support a surgical tool at a distal end thereof. A gear assembly is disposed within the housing and is configured to control oscillation of the surgical tool. A motor is operably coupled to the housing and is configured to drive the gear assembly upon activation thereof. The motor is moveable relative to the housing to adjust one or more gears of the gear assembly which, in turn, adjusts an oscillation angle of the surgical tool to control the aggressiveness of the surgical tool when cutting tissue or bone.

A system and method of reducing blade exposures includes a surgical cutting. The surgical cutting instrument includes an end effector located at a distal end of the surgical cutting instrument, one or more drive units, a shaft coupled to the drive unit, an articulated wrist coupling the end effector to the shaft, and one or more drive mechanisms in the shaft for coupling force or torque from the drive units to the end effector and the articulated wrist. The end effector includes opposable gripping jaws and a cutting blade. To perform a cutting operation, the surgical cutting instrument measures a jaw angle between the gripping jaws, measures articulation of the articulated wrist, corrects the jaw angle based on the articulation of the articulated wrist, determines a restriction on the cutting operation based on the corrected jaw angle, and performs or prevents the cutting operation based on the restriction.

A surgical system for providing an improved video image of a surgical site including a system controller that receives and processes video images to determine a video signature corresponding to a condition that interferes with a quality of the video images, with the system controller interacting with a video enhancer to enhance the video images from a video capturing device to automatically control the video enhancer to enhance the video images. The surgical system can also review the video images for a trigger event and automatically begin or stop recording of the video images upon occurrence of the trigger event.

In a surgical instrument, a reciprocating element controls jaw opening and closing as it moves over a first range of motion and cuts tissue clamped between the jaws as it moves over a second range of motion. A first control input controls the reciprocating element's motion over the first range of motion, and a second control input controls the reciprocating element's motion over the second range of motion. As a result, over control by the first control input will not result in inadvertent tissue cutting.

A surgical system includes an integrated power console configured to power a motor of a cutting device and monitor feedback from during use to indicate the condition of the motor. The system includes a disposable cutting tool having a shaft engageable within the cutting device and supporting a cutting head for rotation with the shaft to cut tissue or bone. The disposable cutting tool includes: a shaft assembly configured to lock the disposable cutting tool onto the cutting device; a proximal connector configured to align the shaft with an output shaft of the motor; and one or more components that presents a unique identification property for tool identification and / or erodes during a sterilization process to negatively affect rotation of the shaft such that the user can identify or the IPC alerts the user that the disposable cutting tool is compromised and needs to be replaced.

An apparatus for treating obesity comprising a volume filling device assembled from at least two segments is provided. Following implantation, the device is placed resting against the stomach wall of the patient to reduce the inner volume of the stomach, thereby affecting the patient's appetite.

An electromagnetic suturing device comprises a body, a coil in the body and a suturing element actuatable by a magnetic field generated in the coil. An electromagnetic suturing device comprises a housing comprising a first arm having a first end face, a first suturing track extending into the first end face, a second arm having a second end face opposing the first end face, a second suturing track extending into the second end face, a coil in the first arm, and a suturing element drivable by a magnetic field generated by the coil to move from the first suturing track to the second suturing track. An electro-magnetic hammer suturing device comprises a housing and a coil in the housing, a shuttle to reciprocate in the housing by an electromagnetic field generated by the coil and a suturing element to be actuated by the shuttle.