221 results about "Drainage catheters" patented technology

A catheter designed to be anchored in an internal cavity of a patient such as a drainage catheter employs a novel hub design. The hub has a slide member slidably coupled to the hub and a latch that latches the hub and the slide member together when the slide member slidably moves relative to the hub. Preferably, latching takes place when the slide member moves relative to the hub in an axial direction of the hub. A manually operable release member is provided on the hub such that the latch is disabled from unlatching unless the release member is manually operated. This feature advantageously limits a person's ability to accidentally unlatch the hub.

The invention provides a drainage system that includes a ventricular catheter, a drainage catheter, and a positive displacement pump that can function to actively drain CSF from the ventricles of the brain of a patient. Methods of using a drainage system in accordance with the invention are also provided, as well as kits.

A method of inserting a drainage catheter into a sagittal sinus having blood flow from an upstream to a downstream direction. A burr hole is created, if necessary, in the cranium of the patient proximate the sagittal sinus. A distal end of a catheter is inserted through the burr hole and the dura into the sagittal sinus. The distal end of the catheter is positioned so that the distal end points generally in the upstream direction with respect to the blood flow. A sagittal sinus catheter is adapted for placement through the dura of a patient proximate a superior sagittal sinus. The catheter is formed of semi-rigid material and has at least a ninety degree bend.

A drainage catheter assembly for the insertion of a drainage catheter percutaneously includes a trocar, a cannula, a catheter stiffener, and a catheter. The trocar includes a distal pointed end, a proximal end, a uniform cross-sectional shape between the distal pointed end and the proximal end, and a means located at the proximal end for releasably connecting with a cannula. The cannula may include a distal end, a proximal end, a cannula lumen extending therethrough, and a means located at the proximal end for releasably connecting with the trocar and catheter stiffener. The catheter stiffener includes a distal end, a proximal end, a body portion comprising stiff material, a catheter stiffener lumen extending therethrough, and a means located at the proximal end for releasably connecting with the cannula and catheter. The elongated catheter includes a distal end containing a tapered tip, a proximal end, a catheter lumen extending therethrough, and a means for releasably connecting with the catheter stiffener.

A catheter kit including a drainage catheter hub having a rotatable lever handle adapted to secure a suture thread to maintain the anchor configuration of the distal end of the catheter to secure the position of the catheter within the patient's body. The rotatable lever handle has a released position for allowing movement of the suture and a secured position for preventing movement of the suture. A rotatable lever handle adapted to secure the proximal portion of the suture that may otherwise remain loose during the procedure. The rotatable lever handle and associated rotatable barrel can be depressed relative to hub body in a locked configuration to prevent inadvertent rotational movement of the rotatable lever handle and a release slot or release button that can be actuated by the practitioner with a release tool to allow for rotational movement of the rotatable lever handle.

A fluid drainage catheter comprises a catheter tube having a proximal and a distal end and a cylindrical wall with a lumen extending generally from the proximal to the distal end to permit the passage of fluid therethrough. The catheter tube is formed such that the proximal end has a closed tip for insertion of the catheter tube into a body cavity and the distal end has an opening for the drainage of from the body cavity through the lumen of the catheter tube. The cylindrical wall has an outer surface with at least one defined external flow path extending generally in a longitudinal direction from a point in proximity to the closed tip to a point distally thereof. With this arrangement, at least one drainage eye is associated with the defined external flow path and extends completely through the catheter tube from the outer surface to the lumen to permit fluid in the flow path to pass through the drainage eye into the lumen.

A drainage catheter hub for use in connection with a drainage catheter to receive and secure a suture therein, wherein the hub includes: (i) a housing having a channel to accommodate the suture therein; (ii) a bistable locking mechanism positioned in the housing and being adapted to provide selective securement of the suture; and (iii) a resilient outer layer utilized in connection with the bistable locking mechanism and coupled to the housing. The bistable locking mechanism is configured to: (i) allow movement of the suture when the bistable locking mechanism is in a first position; and (ii) minimize axial movement of the suture when the bistable locking mechanism is in a second position. The resilient outer layer is adapted to allow a user to actuate the bistable locking mechanism between the first and second positions to selectively secure and release the suture.

A drainage catheter includes an elongated tubular member, a locking assembly engaged with a proximal end of the tubular member, and a tension member for drawing a distal end of the tubular member into a desired configuration. The locking assembly includes a connector, a locking arm, and a locking mechanism. The connector has an exterior surface profile that corresponds with an interior surface profile of the locking arm. The locking arm is pivotably attached to the connector to enable pivoting movement of the locking arm between an unlocked position and a locked position whereby the tension member is secured between the locking arm and the connector when the arm is in the locked position. The locking assembly may alternatively comprise a connector and a sliding sleeve or a connector having a clamping element disposed therein.