A61M3/0202

MODULE FOR ASPIRATION AND IRRIGATION CONTROL

A module for controlling irrigation and aspiration of a phacoemulsification probe inserted into an eye includes an irrigation link, an aspiration link, a bypass channel, an aspiration valve, a diversion valve, a first and second sensors and a processor. The first sensor and second sensor are configured to measure fluid parameters in the irrigation link and in the aspiration link. The processor is in communication with the sensors, and is configured to identify a change in at least one of the fluid parameters by reading at least one of the first sensor and the second sensor, and, in response to the identified change in the at least one of the fluid parameters, (i) close the aspiration valve and (ii) maintain a pressure of the irrigation fluid delivered to the probe within a predefined range, by regulating the fluid flow via the bypass channel using the diversion valve.

Apparatus, system, and method of gas infusion to allow for pressure control of irrigation in a surgical system

The disclosed apparatus, system and method may include at least a surgical fluid container that includes a fluid reservoir capable of containing the surgical fluid and a gas pressure pocket applied to the surgical fluid therewithin; a first external port extending from outside the fluid reservoir into fluid communication with the surgical fluid within the fluid reservoir; and a second external port extending directly from outside the fluid reservoir into the gas pressure pocket.

An anal irrigation system and related methods for maintaining
20220160953 · 2022-05-26 ·

An anal irrigation system and a method for maintenance of an anal irrigation system comprising a tube assembly is disclosed, the method comprising a container and a tube assembly, the method comprising: providing instructions instructing a user to arrange a distal end of the tube assembly in the container for forming a liquid path and to fill liquid into the container; detecting liquid in the container; initiating a disinfection procedure, the disinfection procedure comprises; circulating the liquid in the liquid path for one or more cycles, the one or more cycles comprise one or more liquid circulations; providing instructions instructing the user to discharge liquid from the liquid path.

SELF-POWERED FLUID WARMING CONTAINER AND FLUID WARMING DEVICE FOR USE IN A STERILE SURGICAL FIELD
20230270931 · 2023-08-31 ·

Embodiments of a fluid warming container and a fluid warming device are described. The fluid warming container defines an interior volume arranged to receive a liquid. The fluid warming container also includes a heating element, a power source, and a switch configured to selectively control a flow of electrical current from the power source to the heating element to warm the liquid. The fluid warming device includes an elongate housing, a heating element, a power source, and a switch configured to selectively control a flow of electrical current from the power source to the heating element to warm a liquid in contact with the fluid warming device.

AUTONOMOUS FLUID INSTILLATION SYSTEM AND METHOD WITH TISSUE SITE PRESSURE MONITORING
20220152370 · 2022-05-19 ·

A system and method for providing fluid to a tissue site is described. The method fluidly couples an instillation therapy system to the tissue site and monitors a pressure supplied to the tissue site by a reduced-pressure source with the instillation therapy system for a time period. The method provides fluid to the tissue site with the instillation therapy system in response to the pressure at the tissue site during the time period. The system includes a pressure sensor fluidly coupled to the tissue site to measure a pressure proximate the tissue site. A valve and a flow meter are fluidly between a fluid reservoir and the tissue site. A controller is communicatively coupled to the pressure sensor and the valve and configured to monitor the pressure at the tissue site and a volume of fluid flow to the tissue and, in response, operate the valve.

INFLATION OF BALLOON IN BOWEL IRRIGATION SYSTEM
20220152366 · 2022-05-19 ·

A method for inflating an inflatable balloon of a catheter for a bowel irrigation system is disclosed. The bowel irrigation system comprises a container for holding a liquid, a catheter, a tubing connecting the container and the catheter, a pump, a control unit, and a pressure sensor. The catheter is adapted for being inserted into a rectum of a user and comprises an inflatable balloon. The pump is adapted for pumping liquid from the container to the balloon through the tubing. The control unit comprises a processor. The pressure sensor is in fluid communication with an interior of the inflatable balloon. The method comprises the steps of providing a liquid in the container and initiating an inflation process comprising a feedback loop comprising the steps of (i) inflating the balloon by a predefined amount of liquid, (ii) assessing a static pressure inside the balloon, and (iii) selecting an output based on the static pressure as assessed according to step (ii), the output being selected from restarting the feedback loop according to step (i), skipping step (i) and proceeding to assessing the static pressure according to step (ii), and terminating the feedback loop. Thereby, a method for providing a stepwise inflation of an inflatable balloon for a bowel irrigation system is provided.

Dual-action irrigation pump with variable speed to provide constant fluid flow

A dual-action pump includes a cylinder, a piston and a controller. The cylinder includes first and second inlet-outlet ports, each of the first and second inlet-outlet ports is configured to alternately intake a fluid to the cylinder and output the fluid from the cylinder. The piston is configured to be moved within the cylinder in a periodic cycle that alternately reverses a direction of movement of the piston, so as to pump the fluid through the first and second inlet-outlet ports. The controller is configured to control the movement of the piston within the cylinder, including setting to the piston: (a) a first speed, during a first predefined interval that precedes reversing the direction of movement, (b) a second speed, larger than the first speed, during a second predefined interval that follows reversing the direction, and (c) a baseline speed, smaller than the first speed, outside the first and second intervals.

CONTROL OF BALLOON SIZE IN BOWEL IRRIGATION SYSTEM
20220143372 · 2022-05-12 ·

A bowel irrigation system comprising a container adapted for containing a liquid, a catheter comprising an inflated balloon, a tubing connecting the container and the catheter, a pump, a control unit for controlling a flow of fluid in the system, and a pressure sensor is disclosed. The system comprises means for deflating the balloon, as a response to an assessment of a first pressure inside the balloon being greater than a first threshold value, by reducing the amount of liquid inside the balloon by a first amount of liquid. In addition, a method for deflating an inflatable balloon, as a response to an assessment of a first pressure inside the balloon being greater than a first threshold value, by reducing the amount of liquid inside the balloon by a first amount of liquid is disclosed.

Fluid Management Systems and Methods

Fluid management systems are disclosed that include software-controlled, electro-mechanical devices used in combination with single-use or multi-use tubing sets. Functions of the fluid management systems can include fluid pressurization, fluid warming, fluid deficit monitoring (including flow-based and weight-based), suction, fluid collection, and fluid evacuation (including indirect-to-drain and direct-to-drain options). The systems can be configured based on the surgical environment (e.g., operating room or physician office) as well as other user needs and/or preferences.

Irrigation system with mechanical fluid pressure control
11324878 · 2022-05-10 · ·

An irrigation system for anal or stomal irrigation includes a tubing system attachable between a reservoir and a catheter. The tubing system has a proximal portion attachable to the reservoir and a distal portion including a distal end that is attachable to the catheter, with the tubing system providing an irrigation flow path from the proximal portion attachable to the reservoir through the distal end attachable to the catheter. A pump is operable to move the liquid through the irrigation flow path to provide the anal or stomal irrigation out of the catheter. A pressure control device is attachable to the distal portion of the tubing system and communicates with the catheter. The pressure control device has a valve that is adapted to limit an irrigation pressure for the anal or stomal irrigation out of the catheter to a value less than a pre-determined pressure threshold.