A process and system of compatible cannulas with features that are linked and intentionally related including the Interior Cross Sectional Area (302) of the cannulas, the area of the opening(s) of the cannulas and the width of the opening(s) of the cannulas (303). When used in a method where the appropriate harvesting cannula (100) is selected for use with a desired reinjection cannula (100), the cannula kit (FIG. 8) provides increased benefit for maintaining live tissue viability, and minimizes the time of the surgical procedure. The cannula (100) as a kit or set (FIG. 8) is used for harvesting and for reinjection, and serves in extracting, processing and transferring adipose tissue.

A combination wound drain and substance-delivery device includes a drain portion and a substance delivery portion. The drain portion and the substance-delivery portion include interior cavities that are separated from one another to prevent fluids and/or materials disposed within the interior cavities from mixing together. Each of the interior cavities includes one or more perforations that allow fluid communication between a wound site and each of the interior cavities. The device further includes a tip coupled to the drain portion that facilitates removal of collected waste from the drain portion. The device may include an attachment mechanism that helps secure the device when placed within a wound site.

Apparatus and associated methods relate to a flexible extrusion having a number of radially extending members configured for slidable insertion into a lumen of a surgical catheter shaft. In an illustrative example, the extrusion may have a flexible wall and define an interior insert lumen extending along the longitudinal axis from a proximal end to a distal end. Each of the radially extending members may have a distal engaging surface. When the extrusion is slidably inserted, for example, into the lumen of the catheter shaft, the distal engaging surface of each of the plurality of radial extending members may slidably engage an interior surface of the catheter shaft. In some examples, the inserted extrusion may define an annular distribution of longitudinally extending channels between a proximal and a distal end of the catheter. The slidable construction may advantageously simplify assembly, for example. The channels may offer end-to-end communication.

Devices, systems, and methods for use with suction within a mammalian body. In an exemplary embodiment of a device of the present disclosure, the device comprises one or more of the following: an inner tube, an outer tube, and a foldable portion, whereby movement of the two tubes relative to one another causes the foldable portion to form a suction cup, and conversely causes a suction cup to form a foldable portion, depending on the direction of relative movement.

A suction tool for connection to a dental suction system can include an elongate body, a tip portion, and a screen mechanism positioned within the elongate body. The tip portion can extend over at least a portion of the elongate body. The tip portion can include an upper portion and a lower portion integrally formed with the upper portion and at least partially spaced apart from the upper portion by a recessed portion.

An airborne pathogen extraction system that provides for continuous airborne pathogen particle extraction from a specifically targeted area in a room or a specifically targeted area proximate to a user. The pathogenic particles are filtered and/or disinfected before the air is returned proximate to the originating location, or are directed an area away from the user(s). The airborne pathogen extraction systems and methods lower the chances of contagion or infection from airborne pathogens, such as viruses.

A urinary collection device includes an outer surface and a generally fluid-permeable core that communicates fluidically with an aspiration tube. The outer surface includes an obverse opening to allow urine to flow into the fluid-permeable core when the device is positioned supralabially. On the reverse may be an actuatable fastener configured to retain the device in a reverse-folded intralabial position. In this manner the device may be placed supralabially or intralabially for urine collection as appropriate. The core may include a first knit fabric layer and a second knit fabric layer joined by a plurality of fibers, the fibers being oriented generally to extend from an obverse to a reverse position to thereby result in flow channels through the core.

A device for visualizing and providing suction for a surgical procedure in an ear may include a handle, a main shaft extending from the handle, an imaging sensor at a distal end of the main shaft, a light source at the distal end of the main shaft, and a suction shaft extending from the handle. The device may also include a spring coupled with the suction shaft and/or the handle, such that when the suction shaft is advanced in a distal direction and then released, the suction shaft retracts automatically. The suction shaft may have a distal curved portion, and the device may have a thumb depress portion that allows a user to spin the suction shaft to suction in different directions. Some embodiments may include a suction shaft with a sharp distal tip that is configured for placing an ear tube in the tympanic membrane.

A catheter has a jacket (10, 11, 5) defining a lumen and a helical support (6). The catheter has a proximal portion (1) and a distal portion (3), the distal portion having for at least some of its length a corrugated outer surface. A transition portion has a flexural stiffness which is less than that of the distal portion and more than that of the proximal portion. The transition portion provides an optimum transition in flexural stiffness by way of features of the jacket including geometry of jacket corrugations (15), or overlapping tubular layers (1073, 1074). The distal end of the distal portion may have an extension of liner material folded over (1072, 1082) to provide a particularly soft tip. In other examples the liner is terminated (763) before the distal tip. The catheter is particularly suited to an aspiration device (1350) with a flow restrictor (1353) and the distal portion distal of the flow restrictor. An aspiration system (3500) may employ the catheter with a pump which dynamically applies negative or positive pressure to optimally aspirate a clot.

Disclosed is a surgical instrument directed to phacoemulsification for cataract eye surgery. The instrument generally includes a hollow titanium needle extending from a vibration generating handpiece. Together, the hollow needle and handpiece form an aspiration pathway to suck cataractous debris from an eye. A piezoelectric transducer in the handpiece generates both high and low ultrasonic frequency vibrations that rings the needle. The low frequency produces a node-free standing wave along the needle and the high frequency produces a standing wave along the needle with a node of minimum amplitude along the needle. Both frequencies produce a high anti-node at the needle's tip. The low frequency causes higher cavitation for emulsifying the cataract and the high frequency facilitates fragmentation of the cataract with a low heat portion of the needle at the eye incision point. The placement of the node along the needle can be tailored by way of a tapered section in a step horn region of the handpiece.