227results 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.

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 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.

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 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.

The present invention relates to a fluid management system that can include an inflow pump configured to pump fluid from a fluid supply at a flow rate to a treatment site within a patient's body, and a controller configured to operate at a target flow rate in a flow control mode. In the flow control mode, the controller can be configured to maintain the target flow rate while monitoring a measured pressure communicated from a pressure sensor to the controller. When the measured pressure reaches a preset pressure threshold, the controller can be configured to automatically switch from the flow control mode to a pressure override mode in which the controller automatically reduces the flow rate below the target flow rate to restore the measured pressure to the preset pressure threshold or below the preset pressure threshold.

A pump tube unit according to the present application, in an examination or surgery using an endoscope, reliably supplies water to the endoscope, and also improves the water cutoff condition when the water supply device is stopped; the pump tube unit is provided with: a pump tube provided to a pump having a rotating body with a plurality of pressing portions arranged at an outer peripheral edge portion, and repeatedly performing the operation of sending out liquid to the downstream side and introducing new liquid from the upstream side by being sequentially pressed by any one of the plurality of pressing portions when the rotating body rotates; an upstream-side water supply tube connected to an upstream end portion of the pump tube; a downstream-side water supply tube connected to a downstream end portion of the pump tube; and a bypass water supply tube connected across the upstream-side water supply tube and the downstream-side water supply tube to cause part of the liquid flowing in the downstream-side water supply tube to flow back to the upstream-side water supply tube; the bypass water supply tube is provided with a small-diameter portion in a prescribed range other than the both end portions of the bypass water supply tube, and the inner diameter of the small-diameter portion is smaller than the inner diameters of the other ranges.

The invention relates to an airway protection system with synchronous cleaning and suction and axial oscillation, which belongs to the technical field of medical instruments and comprises a tracheal catheter module, a synchronous cleaning and suction execution module, an axial low-frequency oscillation module and a central control module. The tracheal catheter module is provided with a sealing structure and a double-cavity cleaning and sucking assembly, the synchronous cleaning and sucking execution module achieves cooperative operation of flushing and sucking, the axial low-frequency oscillation module can loosen secretions in the deep portion of an airway, and the central control module regulates and controls time sequence operation of all the modules. According to the system, through cooperative work of multiple modules, the problems that subglottic secretions are not thoroughly cleared away, gastric contents are in hidden reflux, and secretions in the deep part of an airway are low in clearance efficiency are solved, the occurrence rate of ventilator-related pneumonia can be reduced, the airway nursing safety is improved, and the workload of medical staff is relieved.

A surgical device for cleaning an affected area, according to the present invention, which is used in a surgical apparatus that sucks in foreign substances from a surgical site and discharges an affected area-cleaning solution to the surgical site, may comprise: a front cap coupled to the surgical apparatus; a rotary member which is rotatably coupled to the front end of the front cap; a movable member which is movably coupled to the circumferential surface of the rotary member; an outer pipe which is formed as a hollow pipe having a predetermined length and fixedly coupled to the movable member; an inner pipe which is inserted into the outer pipe, has one end passing through the movable member and the front cap while having an outer circumferential surface fixedly coupled to the rotary member, and has formed therein a first flow path through which at least one of the foreign substances and the affected area-cleaning solution flows, the first flow path communicating with the surgical apparatus; a bendable tube which has one end coupled to the other end of the inner pipe, which has formed therein a second flow path through which at least one of the foreign substances and the affected area-cleaning solution flows, the second flow path communicating with the first flow path, and which is made of a flexible material so as to be bendable; and an inlet / outlet member which has one end coupled to the other end of the bendable tube, communicates with the second flow path to allow at least one of the foreign substances and the affected area-cleaning solution to flow inside, and has formed therein a plurality of holes through which the foreign substances are sucked in or the affected area-cleaning solution is discharged.

A pneumatic cross-connect proportional valve provides the capability to calibrate pressure and vacuum sensors in a surgical cassette associated with a surgical console. Calibration of non-invasive pressure and vacuum sensors in a cassette by utilizing a proportional cross-connect to pressurize the lines with set pressure or vacuum the lines with set vacuum and measure the response of respective sensors in the cassette. The use of proportional pressure may be used along with other clearing methods to clear material clogging the aspiration channel pathways and tubing of the surgical system. Utilize the cross-connect functionality to more rapidly pressurize the aspiration line upon detection or prediction of a post occlusion surge, thereby reducing the pressure difference between the surgical field, the eye chamber, and aspiration line which may prevent, for example, a surge of fluid out of the anterior chamber of the eye.

An endoscope for use in a surgical procedure e.g., a pediatric unsedated trans-nasal endoscopy procedure, that includes a handle for gripping by a user and a shaft extending from the handle. The shaft may have a working channel extending longitudinally therethrough and may have a distal region configured to be inserted into a patient. The endoscope may also include a camera sensor mounted at the distal region of the shaft. The camera sensor may be configured for generating image signals related to the surgical procedure. The endoscope may also include a self-contained button assembly mounted to the handle. The self-contained button assembly may include an electrical button sub-assembly having first and second electrical buttons mounted on a circuit board. The first electrical button may be configured upon being pressed to cause a first function to be performed relative to the image signals. The second button may be configured upon being pressed to cause a second function to be performed relative to the image signals. The self-contained button assembly may also include fluid control buttons for controlling the flow of one or more fluids through a working channel of the endoscope.

A medical syringe system comprising a cylindrical barrel, plunger, and plunger end stop. The plunger is configured for moving axially inside the barrel to increase and decrease the internal volume of the barrel. The end stop is configured for preventing unintended extraction of the plunger from the barrel and for rotationally coupling the plunger to the barrel throughout the entire length of travel of the plunger inside the barrel. In one embodiment, the plunger end stop comprises a two-piece assembly that fits completely around the exterior circumference of the barrel with four prongs that extent through apertures in the barrel to engage with a minimum of two ribs of the shaft of the plunger.

A pump tube unit according to the present invention includes a pump tube for sending and drawing liquid, an upstream-side water supply tube connected to an upstream-side end portion of the pump tube, a downstream-side water supply tube connected to a downstream-side end portion of the pump tube, and a bypass water supply tube, connected across the upstream-side water supply tube and the downstream-side water supply tube, and returns a part of the liquid flowing through the downstream-side water supply tube to flow back into the upstream-side water supply tube. The bypass water supply tube has a small-diameter portion in a predetermined range except for both end portions of the bypass water supply tube. The small-diameter portion has an inner diameter smaller than an inner diameter of other range.

Medical systems and devices configured to adjust fluid flow are described. The medical system may include a medical device having a handle coupled to a shaft that includes at least one working channel. The handle may include a port in communication with the at least one working channel and configured to connect to a source of fluid or vacuum. The medical system also may include a control mechanism coupled to or integrated into the handle. The control mechanism may include a grippable portion configured to adjust fluid flow through the at least one working channel of the medical device when a user squeezes the grippable portion or moves the grippable portion relative to the handle.