295results about "Suction irrigation systems" patented technology

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.

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 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.

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.

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.

A platform of computing systems is configured to receive thrombectomy procedure data that is associated with a user of an aspiration thrombectomy system. The procedure data includes sets of temporal datapoints associated with a thrombectomy procedure. The platform of computing systems is further configured to generate thrombectomy analytics data based on baseline procedure data and the sets of datapoints. The platform of computing systems is further configured to visually display the thrombectomy analytics data, and to provide comparative data metrics for selection on an interactive interface.

The invention disclosed herein presents a novel intra-scope direct aspiration system designed for retrieving stone fragments from within the body. This system comprises two major components: a stone fragment retrieval device and a pump unit. The stone fragment retrieval device features a main body with a single operating water conduit containing both an irrigation port and an aspiration port, which are connected to the respective irrigation and aspiration pumps via elastomer-based rubber tubing. This setup allows for the controlled infusion of saline into the body cavity during the lithotripsy procedure, ensuring clear visibility and the removal of debris. The retrieval device includes a trigger lever connected to a clamping tab. When the operator presses the trigger lever, the clamped aspiration tube is released, opening the aspiration port and increasing intra-body pressure.

To provide alternative medical devices and fluid delivery systems.SOLUTION: A fluid management and medical device system may include a fluid management system and a medical device having one or more sensors proximate to the distal end of an elongate shaft of the medical device. A controller of the fluid management system may be configured to calculate a fluid deficit when the distal end of the elongate shaft is disposed within a patient and configured to automatically pause fluid deficit calculation when the distal end of the elongate shaft is removed from the patient. In some instances, the controller is configured to calculate the fluid deficit using rotational speed of the inflow pump in combination with a difference between a change in weight of a fluid supply source supplying a fluid to the fluid management system and a change in weight of a collection container collecting the fluid from the fluid management system.SELECTED DRAWING: Figure 2

The invention relates to a handpiece for use in a surgical procedure such as a phacoemulsification, which handpiece comprises a housing with a proximal and a distal outer end, wherein the handpiece comprises at the distal outer end an aspiration opening for aspirating a surgery site, which aspiration opening is connected to an aspiration channel extending through the housing and which aspiration channel is configured to be connected to a suction force source such as a pump or underpressure system in order to generate a suction force in the aspiration opening, wherein the handpiece comprises an operating element, wherein in a first operative mode of the operating element there is suction force in the aspiration opening and in a second operative mode of the operating element there is no suction force in the aspiration opening.

A vacuum suction control system for use with a vacuum source and a suction conduit includes a connection tube configured to connect the vacuum source with a lumen of the suction conduit. An on-off valve is operably coupled to the connection tube, and a sensing unit is configured to detect flow within the connection tube and provide a signal representative of the flow. A controller receives the signal to decide whether to open or close the valve. The controller can automatically close the valve to shut off the flow when the flow through the connection tube is unrestricted or according to a predetermined timing sequence. The controller can also periodically open a closed valve to determine whether the flow has entered an acceptable range. The controller can also pulse the suction with a pressure manipulation assembly when the flow is restricted or occluded.

Methods and apparatuses for blood clot aspiration. Described are fluid management components and assemblies for blood clot extraction from a patient's body and for filtering blood and recirculating blood back into the patient's body.

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.

The present disclosure relates to catheters (102) and methods for removal of kidney stones. The catheter comprises a handle portion (200), a tube portion including a vacuum lumen (114) through which a kidney stone can be removed and an irrigation lumen (116) through which an irrigation fluid can be supplied, a nozzle (150, 152) comprising a distal facing wall having a plurality of irrigation ports (136) in fluid communication with the irrigation lumen (134), and a plurality of pull wires (230) to cause a distal section of the tube portion to bend in one or more directions. Each of the irrigation ports (136) opens in both a distal-facing and lateral-facing direction.