158results about "Suction irrigation systems" patented technology

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 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.

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.

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.

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.

A portable hand-held negative pressure nasal irrigator comprises a clean water tank, a machine body, left and right nasal interfaces, a vacuum pump, an intermediate adapter seat and a waste water tank. The left and right nasal interfaces are inserted into the machine body, the clean water tank is located in the machine body, the intermediate adapter seat is located below the machine body, the waste water tank is located in the intermediate adapter seat, a left nasal interface of the left and right nasal interfaces is communicated with the clean water tank, a right nasal interface of the left and right nasal interfaces is communicated with the waste water tank, the clean water tank and the waste water tank are connected by the vacuum pump, and an air suction end of the vacuum pump is at a top portion of the waste water tank.

A system for a surgical system is disclosed, comprising system for distributing fluid in a surgical cassette, comprising at least one at least partially deformable bladder at least partially disposed on at least one rigid surface, wherein the bladder forms a portion of a channel, at least a first and second port in fluid communication with the channel, wherein the channel comprises at least two portions having a substantially uniform first dimension separated by a second portion have a second dimension, and wherein at least two pump head rollers are engaged with the bladder.

An in-vivo temperature control system capable of adjusting a temperature in a biological lumen by continuously or intermittently discharging a liquid into the biological lumen such as the esophagus and collecting and eliminating the released liquid from a living body to the outside. The in-vivo temperature control system includes: a first tube having a first channel; a second tube having a second channel; a liquid storage section; a liquid injection pump for supplying the liquid from the liquid storage section to the first channel and discharging the liquid into a living body via the first channel; a liquid suction pump for collecting the liquid in the living body via the second channel; and a third tube provided with a third channel, connected at one end to the liquid suction pump, and opened to the outside at the other end. The liquid suction pump switches operation between discharge operation for discharging the liquid.

A surgical instrument for phacoemulsification procedures is disclosed. The surgical instrument may include a handpiece assembly and a cleaning member. The cleaning member may be coupled with the handpiece assembly. The cleaning member may be configured to be inserted into anterior chamber of the eye of a patient and into a capsular bag of the eye. The cleaning member may include one or more polishing elements configured to detach material from the capsular bag.

To provide an aspiration system for removing undesired matter such as thrombus from a lumen of the body such as a blood vessel.SOLUTION: A system for aspiration includes an aspiration catheter including an elongate shaft including an aspiration lumen, and an open distal end, an extension tube, a peristaltic pump, a compressible portion disposed between the distal end and the proximal end of the extension tube, the compressible portion configured to be coupled to the peristaltic pump, such that operation of the peristaltic pump drives fluid from the aspiration lumen from the distal end of the extension tube to the proximal end of the extension tube, and a controller configured to receive a first signal from a first sensor and configured to vary the operation of the peristaltic pump based at least in part on a first signal received from the first sensor coupled to the aspiration lumen or extension tube related to a change in the characteristic of flow.SELECTED DRAWING: Figure 38

The invention discloses a negative pressure liquid suction and solution flushing dual-purpose wound debridement device which comprises a debridement gun (4), a liquid collection pipeline (2) and a flushing pipeline (3) are arranged on the debridement gun (4), and a liquid suction head (5) connected with the liquid collection pipeline (2) and a flushing head (6) connected with the flushing pipeline (3) are arranged at the end of the debridement gun (4); a liquid collecting electromagnetic valve (7) is arranged on the liquid collecting pipeline (2); and a flushing electromagnetic valve (8) is arranged on the flushing pipeline (3). The negative pressure liquid suction function and the solution flushing function are integrated at the same working end, frequent switching operation caused by separation of a flushing handle and a washing liquid pipe in existing equipment is avoided, and the debridement efficiency is improved.

In certain embodiments, a surgical handpiece system includes a phacoemulsification tip, a fluid management system, an ultrasound drive system, and a controller. The phacoemulsification tip is attached to the 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 a voltage and a current applied to the ultrasonic drive system using fast Fourier transform (FFT), and tune an application frequency of the torsional vibration and the longitudinal vibration according to at least one resonant frequency.

A surgical system and a respective method are described. The surgical system comprises a handpiece comprising a distal end operable for performing a surgical operation on a patient's eye, a pumping module comprising one or more pumps configured for transmitting and / or evacuating fluids via the handpiece, a pressure sensor assembly comprising one or more pressure sensors positioned at one or more selected positions along a path for fluid flow between the pumping module and the distal end of the handpiece, and configured to provide pressure data indicative of fluid pressure along the path, and a controller comprising one or more processors. The controller is configured and operable to receive the pressure data and operation data indicative of a rotation rate of the one or more pumps, and to process the received pressure data and operation data to determine the operation status of the pressure sensors.

A dynamic aspiration system includes a vacuum source, an aspiration catheter, a connecting tube, controllable valves to control a level of pressure in the aspiration catheter or the connecting tube, pressure sensors to detect pressure readings, and a controller capable of utilizing an artificial neural network (ANN) trained to predict flow state classifications. The controller may receive pressure readings from the sensors, provide the pressure readings as input data for the ANN, classify, via the ANN, a current flow state in the aspiration catheter or the connecting tube based on outputs generated by the ANN, and operate the controllable valves based on the classification of the current flow state. The controller operates the controllable valves in a first pressure protocol if the classification by the ANN is restricted or obstructed, and operates the controllable valves in a second pressure protocol if the classification by the ANN is unrestricted.

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.

Systems and methods are disclosed for an endoscope for use in a surgical procedure, e.g., a pediatric trans-nasal endoscopy procedure. The endoscope may include 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 a distal region configured to be inserted into a patient. The endoscope may also include a fluid control mechanism on the handle, the fluid control mechanism including a manifold. The manifold may have two or more inlet openings that are configured for receiving a flow of a respective one of air, suction or water, and has a common outlet opening connected to the working channel of the shaft. The endoscope may also include multiple tubes connected to the inlet openings, the tubes connected to each other along their respective lengths but being selectively disconnectable, e.g., peelable, so as to reduce the amount of loose tubing in a surgical setting. Certain tubes may be connectable to a water bottle with a cap having a pressure relief valve to prevent over-pressurization of the water bottle.

A quick-fill lavage system that is used in a medical environment to prevent the contamination of wounds. The quick-fill lavage system comprises of a gun shaped body that houses a refillable reservoir. A suction ball that is used to refill the reservoir. A one-way valve is used to dispense a liquid from the refillable reservoir. The one-way valve uses a suction tube system to connect the refillable reservoir to pull the liquid from the refillable reservoir. A dispensing tube system attaches to an outlet section of the one-way valve. The dispensing tube removes the liquid from the quick-fill lavage system. A trigger system is used to open the one-way valve to dispense the liquid in a control and manual manner.

According to certain embodiments, a surgical cassette for an ophthalmic surgical system comprises an irrigation conduit that is in fluid communication with a handpiece and carries fluid toward a surgical site. An aspiration conduit is in fluid communication with the handpiece and carries fluid away from the surgical site. An aspiration pump creates a vacuum pressure in the aspiration conduit to draw fluid through the aspiration conduit towards a drain reservoir. A reservoir couples with a pressure-vacuum source to manage the reservoir pressure. A valve is in fluid communication with the aspiration conduit and the reservoir, and provides one or more channels between the aspiration conduit and the reservoir. Each sensor detects a pressure associated with the surgical site. A computer controls the valve in response to the pressure detected by the one or more pressure sensors to mitigate a pressure or volume change.

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. Also disclosed is a vent system including a common vent line (1508) to fluidly couple a reservoir (1403), a clot capture chamber (1405) and a blood return syringe (1409).