In some embodiments, an apparatus for providing negative pressure wound therapy to multiple wounds includes a negative pressure source configured to couple via a plurality of fluid flow paths to a plurality of wound dressings. The plurality of flow paths includes a plurality of calibrated leaks. The apparatus also includes a controller configured to determine a total rate of flow in the plurality of fluid flow paths and compare the total rate of flow to a plurality of thresholds associated with the plurality of calibrated leaks to determine one or more operating conditions, such as a blockage in one or more of the plurality of flow paths. An indication of the operating condition can be provided.

The present invention provides devices and methods that treat damaged spinal cord tissue, such as spinal tissue damaged by disease, infection, or trauma, which may lead to the presence of swelling, compression, and compromised blood flow secondary to interstitial edema.

A system for controlling aspiration of a phacoemulsification probe inserted into an eye includes an anti-vacuum surge (AVS) module, one or more sensors, a vacuum relief valve, and a processor. The AVS module is coupled with an aspiration channel of the probe and is configured to mitigate vacuum surges in the channel by regulating flow via the channel. The one or more sensors are configured to measure fluid parameters in the channel. The vacuum relief valve, which is fluidly coupled with the channel, is configured to controllably relieve vacuum in the channel. The processor is configured to identify a change in at least one of the fluid parameters by reading at least one of the one or more sensors, and, responsively to an identified change in fluid parameters, operate the vacuum relief valve using pulse width modulation (PWM) to maintain a pressure in the channel within a predefined range.

A negative pressure (i.e., vacuum or suction) wound healing device and system incorporating the device. The device of the present disclosure is smaller, lighter, portable, and overall more managable by both the user and the medical personnel than the conventional systems. The device could be readily worn by the user.

The wound treatment apparatus combines an internal negative pressure (vacuum) pump and an internal positive pressure (compressor) pump connectable to an external oxygen supply for providing both negative pressure wound therapy and hyperbaric oxygen wound therapy to a wound site. The apparatus also includes a user interface operatively connected to an electronic controller that monitors and actuates the vacuum and compressor pumps. The user interface and controller enables the apparatus to provide multiple modes of operation and the ability to selectively change between negative pressure therapy operational modes and hyperbaric oxygen operational modes.

A method is provided for facilitating urine output from the kidney, including: (a) inserting a catheter including: a drainage lumen including a distal portion configured to be positioned in a patient's kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis and a proximal portion, the distal portion including a retention portion including a funnel support including at least one sidewall, wherein the funnel support includes a first diameter and a second diameter, the first diameter being less than the second diameter, the second diameter being closer to an end of the distal portion of the drainage lumen than the first diameter, wherein the proximal portion of the drainage lumen is essentially free of or free of openings; and (b) applying negative pressure to the proximal portion of the drainage lumen for a period of time to facilitate urine output from the kidney.

A ureteral catheter includes a drainage lumen having a proximal portion configured to be positioned in at least a portion of a patient's urethra and/or bladder and a distal portion configured to be positioned in a patient's kidney, renal pelvis, and/or in the ureter adjacent to the renal pelvis. The distal portion includes a retention portion for maintaining positioning of the distal portion of the drainage lumen. The retention portion includes a plurality of sections, each section having one or more openings on a sidewall of the retention portion for permitting fluid flow into the drainage lumen. A total area of openings of a first section of the plurality of sections is less than a total area of openings of an adjacent second section of the plurality of sections. The second section is closer to a distal end of the drainage lumen than the first section.

An aspiration system for aspirating blood clots from a human body has a power source, an aspiration pump, and an electrical motor coupled to the power source and the aspiration pump, wherein the aspiration pump is pulsed at a frequency below 10 Hz.

Systems and methods for cleaning a colon or other portion of an intestine include optional use of sensors to detect conditions of blockage of flow of materials within an evacuation channel used to remove fecal material from the body; and devices and methods for purging such blockages from the evacuation channel.

This invention proposes the construction of a simple closed loop system for continuous flow harvesting, collection, syphoning, and grafting of large volumes of fat. (See FIG. 1—a schematic of the overall setup). This invention uniquely bypasses the standard cumbersome and time-consuming process, that mainly being the need to first transfer fat into individual syringes prior to grafting into the patient. This is traditionally done with unmeasured, manual pressures as generated by a simple plunger syringe. It can be messy and sloppy, with loss of fat. In contrast, this innovative concept presented here simplifies the whole process into a closed loop, from the donor harvest site, and then back to the patient. The concept is modular, drawing on commonly used, interchangeable parts and pumps present and available in most basic community hospital operating rooms. The major benefit is a significant reduction in time to transfer. However there is also a simplification of the process with less air exposure time, consistent controlled limit on flow pressures, and a simple on off control that can be held in one hand. The system is adaptable to standard liposuction and introduction cannulas through standard liposuction tubing and a luer lock connection. Collection canisters are also interchangeable.