118 results about "Suction catheters" patented technology

A closed suction system module is provided. In one embodiment, the closed suction system module comprises a coupling member configured to couple to a suction port of a multi-port manifold or endotracheal tube adapter (e.g., dual-port or tri-port adapter). In one embodiment, the closed suction system module comprises a suction catheter configured to clean the interior surfaces of body-inserted tubes or artificial airways (alone or in addition to suctioning natural airways or portions of the respiratory tract or other body lumens). The suction catheter may comprise a cleaning portion at a distal portion of the suction catheter (e.g., near the distal end or tip of the suction catheter). In some embodiments, the cleaning portion comprises at least one expandable cleaning member (e.g., balloon, sleeve, wiper).

Aspiration catheters generally comprise a tube or shaft with an aspiration opening at or near its distal end and a suction device that is at or near the proximal end of the catheter. An aspiration lumen extends from the suction device to the aspiration opening. The aspiration catheter can be associated with an extendable device such that their functions can be combined advantageously. The extendable device can function as a treatment structure and / or as a flow modifier. A treatment structure can be used to expand a constriction in a vessel or to deliver a treatment element into the vessel. A flow modifier generally controls the flow to decrease flow in the vicinity of the aspiration opening to improve the efficiency of the aspiration. Various relationships between the extendable structure and the aspiration catheter are described. Balloons can be used effectively as treatment structures or flow modifiers, although self-extending stents can be used as treatment structures and flaps or the like can be used as flow modifiers.

An intravascular foreign matter suction assembly is insertable into a blood vessel having a relatively small diameter and exhibits a high suction force. The intravascular foreign matter suction assembly includes a combination of a guiding catheter for being inserted to an ostium of a coronary artery of the aorta and a suction catheter inserted in the lumen of the guiding catheter and extending farther than the distal end of the guiding catheter for removing foreign matter in a blood vessel which exists at a target location in the coronary artery. The suction catheter includes a tubular portion provided on the distal end side and a wire portion provided on the proximal end side of the tubular portion and wherein the wire portion has a distal end embedded in a wall which forms the tubular portion.

The self-cleaning and sterilizing endotracheal and tracheostomy tube may include a combination of an endotracheal tube or a tracheostomy tube and a suction catheter that decreases the tendency of mucus and bacteria to adhere to the inner surfaces of the thereof. The endotracheal tube and the catheter may have a hydrophobic surface exhibiting the lotus effect, which may be formed either by femtosecond laser etching or by a coating of ploy (ethylene oxide). Alternatively, the endotracheal tube and the catheter may have a lumen coated with a photocatalyst. The endotracheal tube may also have a light source and a fiberoptic bundle mounted thereon, the optical fibers extending into the lumen to illuminate the photocatalyst.

A directional balloon is provided that can be used for a medical intervention of a body lumen. In one aspect, the directional balloon inflates in a distal to proximal direction and deflates in a proximal to distal direction. In another aspect, the directional balloon inflates in a proximal to distal direction and deflates in a distal to proximal direction. The directional balloon is capable of providing an occlusive seal to protect against embolization. A suction catheter with a control means is provided to provide suction in a controlled fashion in a body lumen. The suction catheter is used during periods of a medical intervention that risks distal embolization. When turned on, the suction catheter is capable of removing unwanted materials. The suction means could be operated by a control means.

An endotracheal tube and suction catheter system having an inflatable cuff with a collection pocket formed in the cuff for collecting pooled secretions and a railing system for controllably guiding a suction catheter along the tube and into the pocket for aspirating pooled secretions. The cuff has an elongated parallelogram-like shape to counter the rocking phenomenon caused by a patient coughing or turning to keep the cuff in contact with the trachea wall so secretions do not leak past the cuff balloon. The railing system allows the suction catheter to be replaced without having to remove the endotracheal tube from the patient.

A suction catheter system including a durable transparent pouch used to hold irrigating solution and a catheter in a contaminant-free environment between uses. The suction catheter system allows the practitioner to reuse the catheter several times for the same patient rather than using a new catheter for each suctioning when the practitioner needs use of both hands and has to lay the catheter down.

A respiratory valve apparatus with a housing having a upper entry port and an opposite endotracheal tube connection port, along with a resuscitation bag connection port and an respirator connection port. The housing has an inner chamber. A reciprocating valve assembly fits within a chamber and slides between two positions whereby the entry, endotracheal, and respirator ports are open in one position, and the entry, endotracheal, and resuscitation ports are open in the second position. The valve assembly is a component of a surgical kit including a resuscitation bag, an endotracheal tube, and a suction catheter. A guide fixture can be attached to the entry port to help steer a catheter through the apparatus. An elongated protective bag can be sealably attached around the catheter to prevent external contact with the catheter surfaces when it is withdrawn.

A disposable mask and suction catheter includes a mask having a front side and a back side, the back side being disposed in contact with a user's face during use. The disposable mask and suction catheter also includes a catheter tube having a first and a second end, the first end being removably attachable to a suction source for removing exhaled air and the second end being attached to the back side of the mask. The disposable mask and suction catheter helps to prevent fogging of glasses or other eyewear due to moist, exhaled air that escapes from behind the mask, and improves user comfort by constantly removing the warm, moist air behind and around the mask and drawing cool dry air into the mask.

A suction catheter and a method of manufacturing the same. In one embodiment, the suction catheter includes: (1) a housing portion having an interior passage therethrough, the interior passage couplable to a vacuum source, (2) a tube portion coupled to the housing portion protruding from the housing a length based on a length of an endotube to be suctioned and (3) a bypass valve associated with the housing portion and configured to control suction through the tube portion.

A respiratory access assembly includes a distal plate having one port and cuff and an axially aligned proximal plate including a first port and first cuff and a second port and second cuff. The distal plate is configured to move relative to the proximal plate. The respiratory access assembly includes an actuator, which has a plurality of predetermined positions. When the actuator is positioned in a movement-enabling position, it permits movement of the plates while simultaneously blocking the first port of the proximal plate. When the actuator is positioned in a first locked (open) position, it locks the plates together and aligns the port of the distal plate with the first port of the proximal plate and un-blocks the first port of the proximal plate so that an object, such as a suction catheter, may be positioned through the aligned ports. When the actuator is positioned in a second locked (open) position, it locks the plates together and aligns the port of the distal plate with the second port of the proximal plate and un-blocks the first port of the proximal plate so that an object may be positioned through the aligned ports. When the actuator is positioned in the third locked (closed) position, it locks the plates together such that the port of the distal plate is positioned between the first port and the second port or the proximal plate and all ports are out of alignment with each other, such that all ports are blocked by a portion of one plate so that no object is moveable through any of the ports. A method of using a respiratory access assembly is provided.

The present invention relates to an improved flap valve or other internal component for use with respiratory suction catheter and manifold assemblies. This flap valve or other internal component provides the assembly with an improved mechanism for cleaning the tip of the catheter without drawing an excessive amount of air from the respiration circuit to which the endotracheal catheter is attached. More specifically, the present invention relates principally to a closed suction endotracheal catheter system which provides improved cleaning of the catheter while minimizing air drawn from the patient's ventilation circuit by providing at least one protrusion on at least one surface of the flap valve or other internal component. By using a flap valve or other internal component with at least one protrusion, the flap valve or other internal component is strengthened and designed to prevent the flap from scraping mucus or other secretions from the catheter onto the distal surface of the flap during retraction.

An aspect of various embodiments of the present invention system and method provide, but not limited thereto, a novel means for epicardial ablation using a double-curve steerable sheath and a double-curve deflectable open irrigated-tip / suction catheter that can be guided around the apex of the heart and adjusted so as to position the distal tip optimally. The catheter can also both deliver fluid to and withdraw fluid from the pericardial space. Access to the epicardial surface of the heart is via a subxiphoid entry. The method and means presented include, but are not limited to, steering, energy delivery, bipolar mapping, placement and use of electrodes, irrigation, suction of irrigation fluid, and other details of the subject invention.

An HME for a tracheostomy tube has a flexible outer housing of a gas-permeable material containing an HME element of discrete particles, granules or the like of a hygroscopic material. The particles are contained between the outer housing and an inner wall of a foam. The inner wall has a ciliated surface facing the end of the tube, which acts to distribute gas over the surface of the HME element. The HME is attached to a flange on an inner cannula by means of a removable adhesive. The HME may include a suction port through a self-closing aperture, which makes a wiping seal with a suction catheter inserted in the tube.

A closed system suction catheter has a catheter enclosed within a flexible envelope secured between a patient end fitting and a machine end fitting. The patient end fitting has a cleaning chamber with a valve at its patient side and is normally closed so that the cleaning chamber is isolated from the patient. The valve has an outer rigid housing enclosing a one-piece elastomeric moulding of tubular shape. The elastomeric moulding has two pads projecting externally through openings in the outer housing. The elastomeric moulding also has a web extending internally across its diameter with a diametrically-extending slit aligned with the pads. A collar mounted on the housing is slidable along the housing to engage the pads so as to apply pressure across the web and open the slit, thereby allowing the catheter to be advanced to the patient.

Provided is an aspiration catheter which does not require a large-scale device, has a largest possible aspiration lumen, and is sufficiently flexible to track tortuous blood vessels following a guidewire, thereby being easily advanced to a target site to be treated. In the aspiration catheter, the tip of the main shaft is obliquely cut, the distal end of the guidewire shaft is positioned at the distal end of the main shaft or protrudes from the distal end of the main shaft in the distal direction, and the relationships 0.5≦L2 / L1 and L2−L1≦5 mm are satisfied, wherein L1 is the length of the obliquely cut portion of the main shaft in the longitudinal direction of the catheter, and L2 is the length from the proximal end of the guidewire shaft to the distal end of the main shaft.

An HME for a tracheostomy tube has a flexible outer housing of a gas-permeable material containing an HME element of discrete particles, granules or the like of a hygroscopic material. The particles are contained between the outer housing and an inner wall of a foam. The inner wall has a ciliated surface facing the end of the tube, which acts to distribute gas over the surface of the HME element. The HME is attached to a flange on an inner cannula by means of a removable adhesive. The HME may include a suction port through a self-closing aperture, which makes a wiping seal with a suction catheter inserted in the tube.

A respiratory access assembly includes a distal plate having a port, which is adapted to be positioned in operable communication with an artificial airway of a patient. The assembly includes a distal plate having a port and a proximal plate which has a first port and a second port. The distal plate is positioned against the proximal plate in a stacked configuration, and each plate is configured to move relative to the other. The assembly has an actuator which is positioned adjacent to at least one plate. The actuator cooperates with both plates to substantially prevent movement of the plates when the port of the distal plate is positioned in an alignment with at least one port of the proximal plate and an object, such as a suction catheter, is positioned through the aligned ports of the plates. The actuator cooperates with at least one plate to permit movement of at least one plate when (a) no object is positioned through aligned ports, and (b) when no ports are aligned. The assembly desirably has predetermined positions, which include a first open position, a second open position, and a third closed position. In the first open position, the port of the distal plate and the first port of the proximal plate are aligned. In the second open position, the port of the distal plate and the second port of the proximal plate are aligned. In the third closed position, the port of the distal plate, and the first and second ports of the proximal plates are blocked to prevent an object from being passed therethrough. A method of using the respiratory access assembly is provided.

An improved laryngoscope blade for use with a conventional laryngoscope handle and conventional means for illumination. The improvements to the blade include a small reverse curve at the tip of the blade to better visualize the depth of insertion of the blade, include a greater width of the portion of the blade proximal to the handle to provide improved means for controlling the tongue, and include a more gradual curvature of the blade to better conform to the shape of the airway opening when the patient is properly positioned for laryngoscopy. The blade may also include a vertical wall which may be thickened to serve as a bite block, and raised areas to define grooves on the surface of the blade for insertion of an endotracheal tube and / or a suction catheter.

A suction catheter system is described with a suction extension interfaced with a guide catheter to form a continuous suction lumen extending through a portion of the guide catheter and through the suction extension. The suction extension can be positioned by tracking the suction nozzle through a vessel while moving a proximal portion of the suction extension within the lumen of the guide catheter. The suction extension can comprise a connecting section with a non-circular cross section for interfacing with the inner lumen of an engagement section of the guide catheter. The tubular body of the guide catheter can have a reduced diameter distal section the can be useful to restrain the movement of the suction extension.

There has been a demand for an aspiration catheter which has a sufficient amount of aspiration, which is sufficiently flexible to satisfactorily track tortuous blood vessels, in which the possibility of kinking of a catheter shaft is decreased when the aspiration catheter is inserted into a guiding catheter from outside of the body, and in which good operationality is achieved. An aspiration catheter of the present invention includes an aspiration lumen for removing a substance by aspiration, the aspiration lumen extending to a hub provided at the proximal end of the catheter; and a detachable core wire disposed in the aspiration lumen.

A device and method for suctioning mucus and secretions from a patient's tracheostomy tube is described. The device utilizes a reusable squeezable bulb with check valves to regulate air flow in and out of the squeezable bulb and a disposable mucus trap and suction catheter to suction a tracheostomy tube effectively and discretely without using an electrically powered suction machine.

A balloon suction catheter may be used to remove clots and increase blood flow to obstructed vessels such as a cerebral artery in a stroke patient. The catheter may be used to apply suction on the clot while providing flow arrest, embolic protection, and optionally flow reversal. The same catheter may also be used to provide for a flow modulation procedure known as post-conditioning to potentially reduce any damage from the sudden reintroduction of blood flow reperfusion injury.

A heat and moisture exchanger (HME) adaptor for a closed suction catheter assembly having one end in communication with a closed suction catheter assembly and another end configured to rotationally engage and releasably hold the HME is disclosed herein. The adaptor may include a retainer having an aperture that engages projections on the HME to releasably secure the adaptor to the HME. The adaptor may include a retaining ring that may be deformed or rotated to engage or disengage projections on the HME. The adaptor may be used with extended use closed suction catheter assemblies.

A tracheostomy care container system for assisting in organizing, managing, and transporting trach care materials. It can be used to store a used suction catheter in a clean environment so that the catheter can be used again, and also allows a user to easily distinguish between cleaning solution and water used during trach care.

The aspiration catheters, systems and methods include a catheter having an elongated body with a cross-section having a flat side and a curve near the distal end. The first side of the cross-section can contact a first side of a delivery lumen in a first orientation, and a second side of the cross-section contacts the first side of the delivery lumen in a second orientation rotated 180° from the first orientation. The curve can be directed 90° relative to a normal of the flat side. The systems and methods can utilize two catheters, and a key joint formed with the two catheters which can rotationally fix the catheters with respect to each other, and the first and second catheters each include at least one pre-formed curve near the distal end. The two catheters can be moved proximally and distally for positioning in the right and left bronchi.

An atraumatic suction catheter having a tubular body with a lumen formed therethrough. At a distal end, the catheter has three equally spaced elongated openings positioned near its distal tip. The catheter may have a fourth round opening positioned proximally to the three openings. The catheter has improved suctioning ability of viscous secretions, and reduced impact compared to other suction catheter embodiments.

Provided is a filtering device, which could not reduce the recovery of the heavy proportion object, prevent mid light proportion object from mixing with heavy proportion object. Filtering device has upwelling generating tube (8) making upwelling generate inside the flume (2), and suction catheter (9) sucking mid light proportion object (B) floating undersurface in virtue of upwelling to upper, so the mid light proportion objects (B) of low deposition speed are floated undersurface by the upwelling, and are sucked and dischared to the suction catheter (9), which prevents mixing and depositing into the heavy proportion object (A) of the bottom of the flume (2), and even the heavy proportion objects (A) entering into the suction catheter (9) owing to upwelling, it could not be sucked to the upper by the suction catheter (9) but deposited to outside, without reducing the recovery of the heavy proportion object (A), and preventing mid light proportion object (B) from mixing with heavy proportion object (A).

An intravascular foreign matter suction assembly is insertable into a blood vessel having a relatively small diameter and exhibits a high suction force. The intravascular foreign matter suction assembly includes a combination of a guiding catheter for being inserted to an ostium of a coronary artery of the aorta and a suction catheter inserted in the lumen of the guiding catheter and extending farther than the distal end of the guiding catheter for removing foreign matter in a blood vessel which exists at a target location in the coronary artery. The suction catheter includes a tubular portion provided on the distal end side and a wire portion provided on the proximal end side of the tubular portion and wherein the wire portion has a distal end embedded in a wall which forms the tubular portion.