Patent classifications
A61M3/0283
Fluid-driven tissue resecting instruments, systems, and methods
A tissue resecting instrument includes a housing, a shaft rotatable relative to the housing and defining a proximal end portion disposed within the housing and a distal end portion distally-spaced from the housing, a cutting member operably associated with the distal end portion of the shaft, a turbine disposed within the housing and operably associated with the proximal end portion of the shaft, and a fluid outflow tube operably associated with the housing. The fluid outflow tube is adapted to connect to a suction source to enable the suctioning of fluid and resected tissue proximally through a lumen of the shaft, an interior of the housing, and into the fluid outflow tube. The turbine is configured such that proximal fluid flow across the plurality of fins of the turbine urges the turbine to rotate, thereby rotating the shaft relative to the housing to enable tissue resection with the cutting member.
Eyelid Retractor and Irrigation Tool
An eyelid retractor and irrigation tool includes a handle portion defining a longitudinal first axis configured to be grasped by a user and a hook portion connected to the handle portion for retracting an eyelid. The hook portion of the tool includes: inwardly and outwardly facing walls, which are curved about a second axis, which is distinct from the first axis; an edge wall extending between the inwardly and outwardly facing walls; and an interior cavity defined by the walls. The tool further comprises at least one opening extending through the inwardly facing wall or the outwardly facing wall fluidly connected to the interior cavity and positioned such that fluid in the interior cavity passes through the at least one opening to irrigate portions of an eye including the eyelid.
Balloon irrigation and cleaning system for interior walls of body cavities
A method and apparatus for cleansing the interior surfaces of body cavities employs a balloon catheter adopted to be inserted into a cavity through its ostium with the balloon in collapsed condition. An input flow tube for a cleansing and/or medicating fluid passes through a central passage in the balloon. When the balloon is inflated to establish a narrow passage between the balloon and the cavity walls, a pressurized flow of the fluid is pumped out the distal end of the input flow tube through the passage, parallel to the cavity walls, where it scours the inner wall of the cavity, removing debris as it flows out of the ostium. The fluid flow is urged toward a turbulent condition by attachments to the outer wall of the balloon.
Surgical hand piece with ultrasonic knife
A surgical hand piece has a solid knife connected to and supported at its proximal end by a source of ultrasonic energy. A plastic sleeve has the knife located in it. A support is provided between the sleeve and the knife to support the sleeve while minimizing the effect of the vibration of the knife on the sleeve. The space between the knife and the sleeve form a first fluid channel. A plastic fluid tube can be located along the sleeve and can provide a second fluid channel. In order to use the handpiece for cleanup the sleeve can be moved forward to cover the knife and a small aspiration tube can be provided within the sleeve.
Pneumatic vibrational injection apparatus
A pneumatic vibrational injection apparatus suitable for use in a system for removal, delivery and/or transplantation of body tissues and other substances in medical procedures may include an apparatus housing having an air inlet chamber, an air outlet chamber, a connecting chamber connecting the air outlet chamber and the air inlet chamber and an injection chamber disposed between the air inlet chamber and the air outlet chamber. An injection nozzle may be disposed in fluid communication with the injection chamber. An injection cannula may be disposed in fluid communication with the injection nozzle. An inlet transducer wheel and an outlet transducer wheel may be mounted for rotation in the air inlet chamber and the air outlet chamber, respectively, of the apparatus housing. A vibration transducer may be disposed in physical contact with the inlet transducer wheel and the outlet transducer wheel. The injection nozzle may be disposed in physical contact with the vibration transducer. A syringe plunger may slidably engage the injection chamber in the apparatus housing.
Multiport syringe system for use with a urinary catheter
A medical syringe with at least three ports, in conjunction with a urinary catheter, can be used for closed manual irrigation of a bladder. The three syringe ports are located on a port body. Each of the three syringe ports can be manually selected by rotating a barrel that has a closed end located inside the cup-shaped port body. Rotation of the barrel inside the port body occurs about an axis that is aligned with the central axis of the hollow cylindrical barrel. The system is configured to selectively fill the syringe with an input fluid, irrigate the bladder by passing fluid into and out of the urinary catheter, and drain bladder contents into a drainage vessel without ever needing to remove the syringe from the catheter.
FLUID DRAINAGE OR DELIVERY DEVICE FOR TREATMENT SITE
A bioresorbable device (2901) for implantation at a treatment site in the body of a patient, for draining fluid from the treatment site or delivering fluid to the treatment site. The device has a bioresorbable resilient truss (2915, 2916) for holding two tissue surfaces spaced apart, thereby defining a channel into which fluid from the treatment site can drain or from which fluid can be delivered to the treatment site, and a port in fluid communication with the one or more channels. The port is connectable to a source of negative pressure or positive pressure.
Femoral hip joint spacer with irrigation device
A femoral hip joint spacer including a prosthesis body having a ball head with a sliding surface, a neck, a collar and a stem. A fastening area is arranged on the stem. The femoral hip joint spacer further has a first connector for feeding a medical irrigation liquid into the body, a second connector for draining the irrigation liquid from the body, and an irrigation liquid inlet opening. The first connector is connected in a liquid-conveying manner to the irrigation liquid inlet opening and an irrigation liquid outlet opening. The second connector is connected in a liquid-conveying manner to the irrigation liquid outlet opening, an irrigation liquid discharge opening and an irrigation liquid intake opening. The irrigation liquid discharge opening is connected inside the body to the irrigation liquid inlet opening and the irrigation liquid intake opening is connected inside the body to the irrigation liquid outlet opening.
Surgical irrigation and suction control apparatus and control method thereof
A surgical irrigation and suction control apparatus connecting to an irrigation device and a suction device includes a flexible cannula, a grip, a first tube, a second tube, an irrigation control unit and a suction control unit. The grip is connected to the flexible cannula. The irrigation control unit includes an irrigation switch and an irrigation tube. The irrigation tube is flexible and is connected between the second tube and the irrigation device. The irrigation switch is disposed on the grip and is actuated to change a diameter of the irrigation tube. The suction control unit includes a suction switch and a suction tube. The suction tube is flexible and is connected between the second tube and the suction device. The suction switch is disposed on the grip and is actuated to change a diameter of the suction tube.
OCCLUSION-ACTIVATED HEAT SUPRESSION INFUSION SLEEVE
Described is a phacoemulsification device for eye surgery that generally comprises an ultrasonically vibrating aspiration needle that withdraws ocular material from inside of the eye. The ocular material withdrawn from the eye is equally replaced with irrigation fluid provided through irrigation ports in an irrigation sleeve surrounding the aspiration needle. In the event the aspiration needle stops withdrawing ocular material, such as if it becomes occluded with a chunk of ocular material, irrigation fluid is directed to the outside of the eye via at least one irrigation aperture to keep the eye cool where the needle is ultrasonically vibrating.