382results about "Suction irrigation systems" patented technology

An aspiration catheter assembly including an outer catheter having an elongate tubular body and a distal valve at a distal end of the aspiration catheter assembly, and an inner catheter configured to communicate with a vacuum source, the inner catheter being within the outer catheter and including an aspiration lumen for receiving at least a portion of a clot. The distal valve is configured to be opened and closed at the distal end of the aspiration catheter assembly, and the distal end of the aspiration catheter assembly is configured as a separator such that the portion of the clot can be separated at the distal end and drawn into the aspiration catheter assembly.

According to some embodiments, a skin treatment system comprises a manifold assembly comprising at least one fluid connector to secure at least one treatment fluid container, a primary handpiece configured to hydraulically couple to the manifold assembly, wherein the primary handpiece is hydraulically coupled to the manifold assembly using at least one fluid conduit, and a flow control device positioned along the at least one fluid conduit, the flow control device configured to switch flow of treatment fluid from the at least one treatment fluid between the primary handpiece and a port, wherein the port is configured to be coupled to a secondary handpiece, wherein a vacuum source is configured to operatively couple to the system and selectively create suction along the primary handpiece.

An attachment device for securing an elongate member to a medical instrument, the attachment device comprises a base comprising a top surface, a bottom surface, a first base aperture, and a second base aperture, and an adhesive at least partially disposed on the bottom surface of the base. The attachment device is free from adhesive on the bottom surface of the base between the first base aperture and the second base aperture.

According to some embodiments, a device for treating a skin surface comprises a handpiece with an opening configured to receive a container containing a concentrated treatment fluid, a skin interface portion, configured to contact the skin surface, and a treatment fluid mixing zone within the handpiece. The mixing zone can receive concentrated treatment material from the container secured to the handpiece and dilution fluid from a dilution fluid conduit, and mix the two or more input fluids / materials to create a diluted treatment fluid to be delivered to the interface portion during use. The handpiece can include a waste fluid connection in fluid communication with the interface portion of the device and a vacuum source to draw the mixed treatment fluid to the interface portion and skin tissue, and to draw spent treatment material from the interface portion during use.

A dynamic aspiration system includes a connecting tube, a vacuum source, a pressure source, an aspiration catheter, a first controllable valve to control a level of negative pressure provided by the vacuum source, a second controllable valve to control a level of positive pressure provided by the pressure source, pressure sensors, and a controller. The controller modulates the controllable valves to generate pressure pulses, determines, for each of the pressure pulses, a degree of success corresponding to a change in a flow in the aspiration catheter or the connecting tube responsive to the pressure pulse, identifies one or more first pressure pulses determined to have the highest degrees of success, and modulates the controllable valves to generate the first pressure pulses in one or more pressure pulse cycles.

Kidney stone removal system is disclosed having components including a handle mechanism, a nozzle tip, and a guiding device. The handle mechanism employs a trigger that enables control of irrigation and vacuum / suction. Depression of a trigger in the trigger mechanism conveys status of vacuum / suction and irrigation to a user by providing increased resistance at different points of depression. When the trigger is in a home (undepressed) position, irrigation and vacuum / suction are turned off. When the trigger is in a fully depressed position, irrigation and vacuum / suction are turned on. When the trigger is in an intermediate position, irrigation may be turned on, while vacuum / suction remains turned off. The nozzle includes one or more irrigation ports positioned at a distal end of the nozzle and having an irrigation port departure angle of 30 to 60 degrees for directing irrigation fluid forward and laterally from the distal end of the nozzle. The guiding device is configured to be removably positioned in the nozzle for receiving a debris fragmentizing device, such as a laser device. The guiding device is configured to prevent an unintended movement of the fragmentizing device when the fragmentizing device is positioned in the nozzle while allowing fluid and debris to flow past the fragmentizing device and through a vacuum tube.

A dynamic aspiration method including engaging a distal end of an aspiration catheter against an occlusion in a blood vessel, applying a vacuum through an aspiration lumen of the aspiration catheter using a vacuum source coupled to a proximal end of the aspiration lumen by a connecting tube, whereby portions of the occlusion are drawn into the aspiration lumen, through the connecting tube and into a collection receptacle by the vacuum source, sensing flow through the connecting tube, and automatically generating pressure differentials when a clog or restricted flow is detected.

The invention provides a combined debridement nursing device for an operating room, and belongs to the technical field of debridement devices. Comprising a flushing handle, one end of the flushing handle is fixedly connected with a flushing assembly, the flushing assembly is used for assisting in wound cleaning, and the flushing assembly is connected with the flushing handle; and the suction assembly is used for extracting liquid and foreign matters in the wound, and the suction assembly is connected with the flushing assembly. By arranging the flushing assembly and the suction assembly, the flushing assembly and the suction assembly are arranged on the flushing gun and the suction pipe correspondingly, the flushing assembly can avoid direct contact between a flushing head and a wound surface and improve the debridement efficiency, necrotic tissue can be conveniently removed in the debridement process, and therefore the flushing head can treat the wound surface more conveniently; the suction assembly can be used in combination with the flushing gun and can be independently used, blockage can be effectively prevented, and the debridement efficiency is improved.

Kidney stone removal system is disclosed having components including a handle mechanism, a nozzle tip, and a guiding device. The handle mechanism employs a trigger that enables control of irrigation and vacuum / suction. Depression of a trigger in the trigger mechanism conveys status of vacuum / suction and irrigation to a user by providing increased resistance at different points of depression. When the trigger is in a home (undepressed) position, irrigation and vacuum / suction are turned off. When the trigger is in a fully depressed position, irrigation and vacuum / suction are turned on. When the trigger is in an intermediate position, irrigation may be turned on, while vacuum / suction remains turned off. The nozzle includes one or more irrigation ports positioned at a distal end of the nozzle and having an irrigation port departure angle of 30 to 60 degrees for directing irrigation fluid forward and laterally from the distal end of the nozzle. The guiding device is configured to be removably positioned in the nozzle for receiving a debris fragmentizing device, such as a laser device. The guiding device is configured to prevent an unintended movement of the fragmentizing device when the fragmentizing device is positioned in the nozzle while allowing fluid and debris to flow past the fragmentizing device and through a vacuum tube.

An embodiment includes a system comprising: an artery, a vein, and a nerve; a first length of tubing adjacent at least one of the vein, artery, and nerve; a second length of tubing to couple to the first length of tubing; and a pump comprising a number of actuators; wherein when the system when operating is configured such that (b)(i) the second length of tubing couples to at least one of the number of actuators, (b)(ii) ends of the first and second lengths of tubing are closed, (b)(iii) a second end of the first length of tubing is operatively coupled to a second end of the second length of tubing, (b)(v) the pump pulsates fluid within the first length of tubing in response to the number of actuators intermittently contacting the second length of tubing.

Disclosed herein are systems, devices, and methods for the removal of objects from the body. The device may be a urethral catheter configured to aspirate kidney stones from the urinary tract through one or more aspiration ports at the distal face or along a lateral side of the catheter. The catheter may include one or more irrigation ports at the distal face or along the lateral side of the catheter for dislodging kidney stones. The device may be steerable. The spatial arrangement of the one or more irrigation ports with respect to the one or more aspiration ports may vary. The device may include an irrigation tube and / or a shield member configured to spatially confine the kidney stones adjacent the catheter. Various temporal patterns of aspiration and irrigation are disclosed for optimizing removal of kidney stones.

The present invention discloses a system comprising an actuation valve for receiving a first pressurized fluid, a piston in communication with the actuation valve, and a flow restrictor for controlling the flow of a second pressurized fluid from the piston. The flow restrictor may vent to ambient pressure and the piston may act as a pinch valve on at least one of an irrigation line.

Devices, systems, and methods for a suction valve assembly for a medical device. The suction valve assembly may include a valve well and a valve stem. The valve stem may include a first seal, a second seal, and a third seal. The valve stem may include a first opening and a second opening fluidly coupled to each other via a lumen. The valve well may include a proximal opening, a distal opening, and an intermediate opening. The valve stem is configured to translate within the valve well and adjust between a first configuration in which the third seal is a barrier between the intermediate opening and the distal opening and the lumen is fluidly isolated from the intermediate opening, and a second configuration in which the first seal is a barrier between the proximal opening and the intermediate opening and the lumen is isolated from the proximal opening.

A system and method for provided a phacoemulsification surgery handpiece including a convertible sleeve for phacoemulsification surgery and irrigation / aspiration procedures. In a retracted state, the sleeve is in a desired relationship with the exposed portion of a phaco tip of the handpiece to support normal phacoemulsification surgery. In an extended state, the sleeve features a distally placed aspiration hole located forward from the distal end of a phaco tip to allow typical irrigation / aspiration procedures. A distal tip segment of the hand piece is overmolded by polyimide materials having a split feature to allow egress of a phaco tip.

The present disclosure a pressure detection device, a sheath tube and a perfusion and suction system. The pressure detection device comprises a housing and a pressure detection assembly. the housing has a piezometric cavity and a mounting cavity, the piezometric cavity has an air inlet for communicating with a piezometric interface of the sheath tube and a vent hole for communicating with the outside, and a switch is arranged at the vent hole; and the pressure detection assembly is arranged in the mounting cavity and includes a gauge pressure sensor, a voltage regulating circuit, an operational amplifier circuit and a conversion circuit; the gauge pressure sensor, the voltage regulating circuit and the operational amplifier circuit are electrically connected with the conversion circuit, and the gauge pressure sensor is used for converting a pressure signal in the piezometric cavity into a voltage signal.

The invention disclosed in this document presents a novel direct in-scope suction system designed for the retrieval of calculus fragments within the body. This system comprises two key components: a calculus fragments retrieval device and a pump unit. The calculus fragments retrieval device features a body with a single working channel that includes both an irrigation port and a suction port, which are connected to respective irrigation and suction pumps via elastomer-based rubber tubes. This setup allows for the controlled infusion of saline solution into the body lumens during lithotripsy procedures, ensuring clear visibility and fragment clearance. The retrieval device includes a trigger lever connected to a pincher tab. When the operator presses the trigger lever, the suction port is opened by releasing the pinched suction tube, increasing pressure inside the body.

A tool comprising a handpiece having a flattened cannulated tip that is adapted to receive flow from a pumping unit, in order to generate a jet of fluid suitable for procedures such “hydro-dissecting” cells in the eye. According to an embodiment of the invention, the tool comprises a visualization probe with at least one camera, wherein the sensor of the at least one camera is distally located at the tip of the tool to be inserted in to the eye for imaging from within the eye.

The invention discloses a combined debridement nursing device for an operating room, and relates to the technical field of debridement devices, the combined debridement nursing device comprises a transparent cover, and a suction head arranged at the end part of the transparent cover; the flushing pipes are oppositely arranged on the two sides of the suction head; the pressing block is used for pushing the suction head; the locking piece is fixedly arranged in the transparent cover and is provided with a high-position groove and a low-position groove which are oppositely arranged and are used for limiting the extension length of the suction head; and a gap between the plug block and the suction head is a suction channel. According to the combined debridement nursing device for the operating room, an operator can hold the transparent cover by one hand and adjust the pressing block by fingers, so that the width of a suction channel is adjusted, the suction flow is changed, timely adjustment is achieved according to the equivalent amount of field percolate plasma and pus, flushing and suction actions can be completed through one-hand operation, and the operation efficiency is improved. And the damaged surface is cleaned by combining the cavitation effect of the ultrasonic generator, and the sucked waste liquid is oscillated.

The invention relates to the field of medical instruments, and discloses a water pumping mixing type pancreatic cancer postoperative drainage device which comprises a negative pressure pump cabin, a liquid inlet and a liquid outlet are formed in the negative pressure pump cabin, the liquid inlet is communicated with a water inlet pipe and a first drainage pipe, the liquid outlet is communicated with a second drainage pipe, the end of the water inlet pipe is connected with a water supply tank, and the end of the second drainage pipe is connected with a liquid storage tank. A first overflowing cabin and a second overflowing cabin are formed in the negative pressure pump cabin, a first pipe cabin and a second pipe cabin are arranged between the first overflowing cabin and the second overflowing cabin in a communicating mode, and one-way valve structures are arranged at the connecting positions of the first overflowing cabin and the first pipe cabin and the connecting positions of the second overflowing cabin and the second pipe cabin. According to the device, the first drainage tube is placed in a wound surface, negative pressure is generated in the negative pressure pump cabin, the hydrops enters the liquid inlet along the first drainage tube under the action of the negative pressure and is mixed with water at the liquid inlet, the concentration and viscosity of the hydrops are reduced after the hydrops and the water are mixed, the situation that the hydrops are blocked in a pipeline due to high viscosity is reduced, and the anti-blocking effect is improved.

A nasal device includes a tip member having a first end and a second end, the second end of the tip member being oppositely disposed relative to the first end, the tip member including a first wall disposed at the first end thereof, the first wall defining a first aperture configured to be in fluid communication with a nostril of a person; a cover member disposed over a portion of the tip member, the cover member including a second wall overlapping at least a portion of the first wall of the tip member, the second wall defining a second aperture configured to be in fluid communication with the nostril of the person and the first aperture of the tip member, the cover member configured to provide a seal with the nostril of the person; and a vacuum source or a fluid container coupled to the tip member.

Medical devices and related methods are described, including a medical device that may include a handle including a housing, a first lumen extending distal to the housing, and a second lumen extending distal to the housing. The medical device may further include a switch assembly coupled to at least one of the first lumen or second lumen. The switch assembly may include a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet may be configured to receive a source of fluid and the second inlet may be configured to receive a source of suction. The switch assembly may be movable between a first configuration in which the first inlet may be in communication with the first outlet and the first lumen, and a second configuration in which the second inlet may be in communication with the first outlet and the first lumen.

In certain embodiments, a surgical handpiece system includes a phacoemulsification tip, a fluid management system, an ultrasonic drive system, and a controller. The phacoemulsification tip is attached to a shaft. The fluid management system is configured to manage inflow and outflow of fluid from an ocular surgical site. The ultrasonic drive system is configured to generate torsional and longitudinal vibrations in the phacoemulsification tip. The controller is configured to analyze applied voltage and current to the ultrasonic drive system using Fast Fourier Transforms (FFTs), and tune applied frequencies of the torsional and longitudinal vibrations according to at least one resonant frequency.

A thrombectomy system includes a catheter having a proximal end and a distal end, a valve in fluid communication with the catheter, and a cutting instrument associated with the distal end of the catheter. The cutting instrument may be configured for axial and / or rotational motion. A controller of the system may be configured to detect operational parameters of the cutting instrument. The controller may determine whether the cutting instrument is engaging with occlusive material based on the detected operational parameters. The controller may operate the valve in one or more operating modes to alter a level of pressure in the catheter based on whether the cutting instrument is engaging with the occlusive material.

Thrombectomy systems and methods are provided for acquiring a baseline pulmonary artery pressure and a baseline change in the pulmonary artery pressure over time, deriving a baseline hemodynamics assessment of the subject from one or more characteristics of a relationship between the acquired baseline pulmonary artery pressure and the baseline change in pulmonary artery pressure over time, removing at least one occlusion or partial occlusion in the pulmonary artery branch, after removing the at least one occlusion or partial occlusion, acquiring a post-treatment pulmonary artery pressure and a post-treatment change in the pulmonary artery pressure over time, deriving a post-treatment hemodynamics assessment from one or more characteristics of a relationship between the acquired post-treatment pulmonary artery pressure and the post-treatment change in pulmonary artery pressure over time, and providing a signal indicative of a treatment completion state based a correlation between the baseline hemodynamics assessment and the post-treatment hemodynamics assessment.

Embodiments of the present disclosure generally relate to systems and methods for measuring intraocular pressure (IOP) during ophthalmic surgery. In some embodiments, a method for measuring IOP is provided. The method includes measuring fluid pressure in a fluid flow path of a handpiece device using a pressure sensor disposed therein to obtain a fluid pressure measurement, determining a sensor temperature measurement of the pressure sensor, determining a predicted sensor zero offset based on the sensor temperature measurement using a determined zero offset correlation function, and adjusting the fluid pressure measurement with the predicted sensor zero offset to obtain an adjusted fluid pressure measurement.

Systems and methods for nasal irrigation are provided in which a nasal irrigation device includes a source of saline solution, an effluent receptacle, a nasal interface, a vacuum source, a fluid passageway to communicate the source of saline solution with the effluent receptacle through the nasal interface and a nasal cavity of the user, and a switch and valve assembly for selectively controlling the vacuum source and flow of the saline solution through the fluid passageway. The saline solution source bottle is disposed relative to the device to provide gravitational inducement of saline solution to the nasal interface in engagement to the device user's nostrils. A combination of the gravitational inducement and the relative vacuum from an effluent receptacle generates a fluid flow for irrigating, cleansing and massaging the nasal cavity and ostia of a user. The entire device is assembled as a hand-held device for convenient lifting and disposal against the user's nostrils.

An extension conduit for use with a system for aspirating thrombus includes a passageway extending between a distal end and a proximal end of the extension conduit, and a combined hydraulic and electrical control carried on the extension conduit and configured to be activated by a user to activate an electric switch while opening a valve to allow flow through the passageway.

In one embodiment, a phacoemulsification system includes a phacoemulsification probe configured to be inserted into an eye, and including a needle, a horn configured to support the needle, and an ultrasonic actuator connected to the horn and configured to vibrate the needle to emulsify a lens of the eye, an aspiration line partially disposed in the needle, a pumping sub-system connected to the aspiration line and configured to remove fluid and waste matter from the eye via the aspiration line, a valve disposed in the aspiration line and configured to control fluid connectivity in the aspiration line, a sensor configured to provide a signal indicative of a fluid metric in the aspiration line, and a controller configured to find an activation status of the ultrasonic actuator, and selectively control the valve responsively to the fluid metric and the activation status of the ultrasonic actuator.

Provided is a medical suction device including a compressible object including a surface, an opening in the surface, and a lumen defined by the surface and the opening, along with a tubular member located inside the compressible object. Also provided is a medical suction apparatus including the medical suction device and a catheter dimensioned to fit inside the tubular member of the device. A method of removing liquid from the throat of a subject using the medical suction apparatus is also provided, as well as kits including the medical suction device.

Medical devices are described including a medical device that includes a casing assembly with a first portion movably coupled to a second portion, a first fluidics channel, a second fluidics channel, a third fluidics channel, and a fourth fluidics channel. Moving the first portion relative to the second portion may transition the medical device between a first and a second configuration. In the first configuration, the first and second fluidics channels may be fluidly connected, and the third and fourth fluidics channels may be fluidly connected. In the second configuration, the first and third fluidics channels may be fluidly connected, and the second and fourth fluidics channels may be fluidly connected.