1036results about "Wound drains" patented technology

Intermittent catheters in simple-to-use assemblies or systems thereof facilitate cleanliness before and after use. In an example, an intermittent-catheter system can include an intermittent catheter and packaging enclosing the intermittent catheter therein to maintain sterility of the intermittent catheter in an unused state of the intermittent-catheter system. The packaging can include a flexible packaging body and a packaging cover. The packaging body can be configured to hold a catheter tube of the intermittent catheter therein. The packaging cover can be configured to reveal a funnel of the intermittent catheter when an uncovering operation is performed. The uncovering operation can reveal an adhesive patch on either the packaging body or the packaging cover for adhering the packaging to a vertical surface for removal of the intermittent catheter from the packaging for catheterization. The packaging can be further configured for resealing the intermittent catheter therein subsequent to the catheterization.

A urinary drainage system includes an air pressure apparatus. The air pressure apparatus includes a connector and an adapter. The connector includes a reduced diameter portion, a connector lumen extending from an upstream opening to a downstream opening in the reduced diameter portion, and a lateral port configured for drawing a fluid sample from the connector lumen. The adapter is sealing coupled to the connector and includes an adapter lumen receiving the reduced diameter portion, the downstream opening in fluid communication with the adapter lumen. A luminal space is defined in the adapter lumen around the reduced diameter portion of the connector. The adapter further includes an air intake port including a port lumen orthogonal to the adapter lumen, which is configured to provide a positive air flow to the luminal space to draw a fluid through the downstream opening in the reduced diameter portion of the connector.

Systems, devices, and methods are provided for retrieval of an implant from the prostatic urethra. Embodiments of retrieval systems can include a device for insertion into the patient and a proximal control device for use in grasping a portion of the implant and withdrawing the implant into a lumen of the retrieval system.

An asymmetric device for regulating blood volume distribution across a patient's atrial septum having a first expandable end region and a second expandable end region. The first expandable end region is transitionable from a contracted delivery state to an expanded deployed state in which the first expandable end region extends into the patient's left atrium and an inlet end of the first expandable end region is in a first plane. The second expandable end region is transitionable from a contracted delivery state to an expanded deployed state in which the second expandable end region extends into the patient's right atrium and an outlet end of the second expandable end region is in a second plane, such that the first plane intersects the second plane. The device further includes a neck region joining the first expandable end region to the second expandable end region, wherein the neck region is sized and shaped for placement in the patient's atrial septum.

Intermittent catheters in simple-to-use assemblies or systems thereof facilitate cleanliness before and after use. For example, an intermittent-catheter system can include an intermittent catheter and packaging enclosing the intermittent catheter therein to maintain sterility of the intermittent catheter in an unused state of the intermittent-catheter system. The packaging can include a flexible packaging body and a packaging cover. The packaging body can be configured to hold a catheter tube of the intermittent catheter therein. The packaging cover can be configured to reveal a funnel of the intermittent catheter when an uncovering operation is performed. The uncovering operation can reveal an adhesive patch on either the packaging body or the packaging cover for adhering the packaging to a vertical surface for removal of the intermittent catheter from the packaging for catheterization. The packaging can be further configured for resealing the intermittent catheter therein subsequent to the catheterization.

A method of diverting fluid flow from a first vessel including an occlusion to a second vessel includes deploying a prosthesis at least partially in a fistula and making valves in the second vessel incompetent. Making the valves in the second vessel incompetent includes at least one of using a reverse valvulotome to cut the valves, inflating a balloon, expanding a stent, and lining the second vessel with a stent.

Devices, systems, and methods for causing retrograde oxygenated blood flow in at least a portion of the venous system of the myocardium are disclosed. Devices and methods include a method for causing retrograde oxygenated blood flow in at least a portion of the venous system of the myocardium, the method comprising: implanting a variable occluder in a coronary sinus region proximate a left atrium, wherein the variable occluder is configured to gradually increase a level of blood flow restriction over a period of days to enable a venous system of the myocardium to compensate for increased pressure caused by the gradual increase in the level of blood flow restriction; and following venous system compensation, shunting oxygenated blood flow into the coronary sinus to cause retrograde flow of oxygenated blood in at least a portion of the venous system of the myocardium to thereby enable revascularization of the myocardium.

The present disclosure relates generally to the field of medical devices and establishing fluid communication between body lumens. In particular, the present disclosure relates to devices and methods for placing the muscularis layers of first and second body lumens in contact to establish a long term or permanent open flow or access passage therebetween.

Disclosed herein are several embodiments of a negative pressure appliance and methods of using the same in the treatment of wounds. Some embodiments are directed to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.

A breakaway chest drain connector, which includes a first part having an inlet for connecting to an upstream portion of a chest drain tube, a one-way valve and a first flange surrounding the one-way valve; and a second part having an outlet for connecting to a downstream portion of the chest tube, a second flange and a hollow protrusion, the second flange surrounding the hollow protrusion. The second part is connectable to the first part by securing the first flange to the second flange such that the hollow protrusion passes through the one-way valve to form an uninterrupted fluid flow passage from the inlet through the hollow protrusion and the outlet along a longitudinal axis of the connector. The first and second flanges are separable by applying a longitudinal separation force above a defined threshold separation force.

The invention relates to sensing compositional information about material by measuring thermal properties of the material. In one arrangement there is provided a needle probe for sensing compositional information. The probe comprises a needle having a tip region. A resistive element is attached to the needle at the tip region. A measurement system is configured to: 1) drive an electrical current through the resistive element to apply heating to the resistive element, and 2) measure an electrical response of the resistive element to the heating. A processing unit analyses the measured electrical response of the resistive element to the heating to determine compositional information about material in contact with the tip region.

A reusable urinary catheter assembly comprises a storage container defining a cavity, a hydration liquid and a reusable urinary catheter. The hydration liquid includes a disinfection medium and a hydrophilic polymer. The viscosity of the hydration liquid is 40 cP or lower. The reusable urinary catheter includes a shaft, and at least a part of the shaft is provided with a hydrophilic surface. During storage, the shaft is enclosed within the cavity in a storage position. The hydration fluid hydrates and regenerates the hydrophilic surface and disinfects the catheter. The catheter is configured to be repeatedly inserted into and removed from the storage container.

It can securely fix medical tubing in place. [Solution] The device comprises a female member into which a medical tube 11 is inserted, a male member that screws into the female member, and an O-ring 12 that is housed in the female member and deforms as the male member screws into the female member, thereby fixing the medical tube 11. The female member has a seating portion 67 into which the O-ring 23 is seated, and the male member has a pressing portion 42 that presses the O-ring 23 seated in the seating portion 67. The pressing surface 51a of the pressing portion 42 is formed parallel to the shear direction, and the seating surface 67a of the seating portion 67 is formed in an inclined shape that curves toward the medical tube 11 from a plane parallel to the pressing surface 51a.

According to an aspect, a method of cholecystitis treatment includes: forming a communication hole that communicates a gallbladder and a duodenum; and arranging a bypass tube extending from a cystic duct to the duodenum through an inside of the gallbladder and the communication hole.

Systems and methods for implanting a shunt for regulating blood pressure between a patient's left and right atria are provided. The shunt comprises an anchor having a neck region, first and second end regions, and a conduit affixed with the anchor formed of a biocompatible material that is resistant to transmural and translation tissue ingrowth and that reduces a risk of paradoxical embolism. The shunt may be advanced through the sheath until the first region protrudes from the sheath and self-expands within the left atrium. The shunt and the sheath may then be retracted until the first region contacts the left side of the atrial septum. The sheath may further be retracted until the counterforce exerted by shunt tension on the atrial septum overcomes the friction of the retained portions of the shunt such that the second region is exposed from the sheath and self-expands within the second atrium.

Various implementations include a breast tissue expander device. The device includes one or more tabs extending outwardly from a body of the device for coupling the device to the chest wall of a patient. The device further includes an aspiration port in fluid communication with a drain tube for draining body fluid, along with retention members for securing the drain tube to the body. The device may also include one or more flow barriers configured to prevent the inadvertent leakage of expansion fluid or body fluid from the device.

A cardiovascular implant device includes an annular body, one or more anchoring members, and a flow directing component. The annular body includes a central flow tube extending from an inflow end to an outflow end and a flow path extending through the central flow tube. The one or more anchoring members extending outward from the annular body and are configured to secure the cardiovascular implant device to a tissue wall. The flow directing component is positioned to align a flow of blood out of the cardiovascular implant device with a natural flow pattern of blood in a right atrium so that the flow of blood out of the cardiovascular implant device joins with the natural flow pattern of blood in the right atrium.

A method of reducing left atrial pressure is provided for treating diastolic heart failure. A puncture catheter is advanced into a coronary sinus for creating an opening in a wall between the coronary sinus and a left atrium of a heart. A cauterizing tool may be used to create a controlled scarring pattern in the tissue along the opening. After the opening is created, a blood flow path is provided from the left atrium to the coronary sinus for reducing blood pressure in the left atrium and thereby alleviating symptoms of heart failure. If necessary, a shunt device may be implanted within the opening to ensure that the blood flow path remains open.

A stent including a tubular body formed of one or more interwoven wires, a first anchor member disposed adjacent the first open end of the stent, a second anchor member disposed adjacent the second open end of the stent, and at least one divider disposed between the first and second anchor members. The first and second anchor members and the divider extend radially outward from the tubular body to divide the tubular body into at least a first saddle region extending between the first anchor member and the divider and a second saddle region extending between the second anchor member and the divider.

A catheter insertable into a urethra for installation in a user's bladder and urethra, the catheter comprising: a urine conduit comprising a first urine inlet and a urine outlet; and an inlet protector extending outwardly from the urine conduit from a position between the first urine inlet and the urine outlet, where the inlet protector functions to protect the urine inlet by separating it from contact with the bladder wall and thus keeping it out of contact with tissue.

The present invention provides a tube connector and a tube with a connector that can prevent the first and second members from unintentionally separating. [Solution] A tube connector 12 for connecting a medical tube 11 to a medical device, comprising a female member 21 into which the medical tube 11 is inserted, a male member 22 that screws into the female member 21, and an O-ring 23 housed in the female member 21 and deforming as the male member 22 screws into the female member 21, thereby fixing the medical tube 11, wherein the male member 22 has an engaging projection 44, and the female member 21 has a retaining portion 72 that locks the engaging projection 44 in the direction of separation of the male member 22 from the female member 21.

The present invention relates to the technical field of medical drainage tubes, in particular to an abdominal drainage device for tumor surgery. The abdominal drainage device comprises a negative pressure drainage device, wherein a control apparatus is provided on the negative pressure drainage device; a negative pressure drainage assembly is provided at the front end of the negative pressure drainage device; a drainage connecting tube is fixedly mounted at a drainage tube connection end of the negative pressure drainage assembly; and an abdominal drainage tube assembly is provided at one end of the drainage connecting tube. The beneficial effects are as follows: by means of designing a rigid adjustment branch tube below an abdominal drainage main tube, and cooperatively designing an adjustment fixing ring and an adjustment fixing assembly, a pushing spacer is moved to make a movable adjustment tube rotate as a whole, and then the pushing spacer is pressed to pull a tightening line, such that a gate plate presses adjustment bumps, shifting hollow spherical tubes above the rigid adjustment branch tube and deflecting hollow spherical tubes below the rigid adjustment branch tube, thereby driving the adjustments of the positions of a rigid connection branch tube and an abdominal drainage branch tube by means of the deflection below the rigid adjustment branch tube, and facilitating the adjustments of drainage positions.

A differential pressure regulating device is provided for controlling in-vivo pressure in a body, particular in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments, a control mechanism coupled to the adjustable flow regulation mechanism may be provided to remotely activate the adjustable flow regulation mechanism.

Systems, devices, and methods for intracranial access through vasculature (e.g., the superior sagittal sinus and / or the middle meningeal artery) to deliver devices on or near a brain of a patient. The system includes a catheter and a perforating element for puncturing the dura such that the distal portion of the catheter can be positioned in or near the subdural space. Devices that can be delivered include, for example, brain-computer interfaces (BCI) devices, intracranial pressure monitoring (ICP) devices, biopsy devices, or devices for injection or aspiration of fluid materials.

Devices and methods are described for urinary catheters and catheter valves. For example, this disclosure relates to urinary catheters having valves that facilitate testing of a user's ability to urinate.

A pressure sensing apparatus comprises an elongate first sensor device in a beam configuration supported at at least one longitudinal end by a rigid support structure and having a deflectable portion, A chamber is disposed adjacent a first, internally-facing, face of the first sensor device. An envelope hermetically seals the first sensor device and the chamber from an ambient environment external to the pressure sensing apparatus. The envelope comprises a flexible membrane disposed over and coupled to a second, externally-facing, face of the first sensor device and extending along at least one or two sides of the first sensor device and the chamber. The sensor device may be a surface acoustic wave device coupled to an RF antenna.

A CSF management method for use with a patient forms a closed loop CSF circuit between two points on the patient's body. The CSF circuit has a therapeutic inlet to receive a therapeutic material (e.g., a drug), and a pump having a pump outlet to direct CSF along the CSF circuit. The method controls the pump to direct CSF from the pump outlet at a CSF rate that is different from the natural flow rate (i.e., the natural CSF flow rate). The therapeutic material is added to the CSF via the therapeutic input at a therapeutic rate. The CSF rate is different than the therapeutic rate and / or may be greater than the therapeutic rate. Alternative methods may control a bolus drug infusion to localize the application to a target region.

Medical devices and methods are described for removing a predetermined shape of soft tissue from a target tissue layer, leaving a matching passage having a predetermined geometry and orientation in the target tissue layer. The medical devices include coaxial outer and inner elongate members extending along an axis X; the outer member includes an open distal end and a first distal portion configured for piercing the target tissue layer during forward axial movement; the inner member includes a second distal portion configured to rotate and protrude distally through the open distal end to cut the predetermined shape of soft tissue from the target tissue layer and create the passage, which forms a hole across the target tissue layer.

A securement assembly for supporting and stabilizing a vascular access device, such as a tunneled central venous access devices (CVAD) or a surgical drain, is provided herein. The securement assembly may comprise a base and a lid. The base may include a central post about / around which the external portion of the access device or surgical drain may be wrapped. The lid may extend from the base and may be configured to cover the external portion of the access device or surgical drain (when installed). In various embodiments, the base and the lid collectively define an annular chamber around the central post of the base.