10 results about "Flow diversion" patented technology

The utility model discloses a kind of dilute excrement flow guide devices, it relates to medical instrument technical field, including flow guide cover, connecting pipe and drainage bag, the flow guide cover side includes by first arc section and second arc section being arranged from top to bottom, tangent direction is same at the intersection of first arc section and second arc section, the convex direction of first arc section is oblique to the central inside flow guide cover, the concave direction of second arc section is oblique to the central inside flow guide cover;The tangent direction of the intersection of first arc section and second arc section of the flow guide cover of this scheme is same, this design guarantees the fluency when dilute excrement slides on the surface of flow guide cover, avoid appearing jam, the convex direction of first arc section is oblique to the central inside flow guide cover, can guide dilute excrement flowing down in upper portion to gather to center, the concave direction of second arc section is oblique to the central inside flow guide cover, further strengthen the converging guiding effect to dilute excrement, ensure that dilute excrement can accurately flow into lower connecting component.

A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.

The present invention provides a patient interface including a cushion assembly, a headgear assembly, an elbow assembly and transition ring structure and a headgear secure assembly. The cushion assembly, the elbow assembly and the headgear secure assembly are assembled together by the transition ring structure. The cushion assembly is sealed with a face of a patient when in use. The headgear secure assembly is for connecting the headgear so as to secure the patient interface at the face of the patient when in use. The cushion assembly is provided with a cylindrical wall for delivering an air flow, and the cylindrical wall projects in two opposite directions along an axis of an opening thereof, so as to provide an air flow of a breathing chamber with a flow diversion guiding effect. Thus, the patient interface can be worn and used with better comfort and convenience.

Described herein are shunt devices configured to achieve a targeted reduction in peak systolic pressure by percutaneously shunting from the superior vena cava to the right pulmonary artery. The shunt devices include a check valve with a cracking pressure to preserve a minimal transpulmonary pressure. Also described herein are flow diversion devices placed between pulmonary circulation vessels and venous vessels. The disclosed flow diversion devices are physiologically responsive through an adjustable orifice that can be adjusted after initial implantation through a non-invasive or minimally invasive procedure. Disclosed herein are flow control systems that are configured to reduce recruitment of blood from the splanchnic system. The flow control systems include a variable orifice constrictor (e.g., a covered stent) and a controller that delivers energy to the constrictor to reduce the cross-sectional area of the lumen through the variable orifice constrictor.

The utility model relates to the technical field of medical instruments, in particular to a gastrointestinal tumor surgery diversion device. The gastrointestinal tumor surgery diversion device comprises a diversion bottle, a thickening layer is arranged at the bottom of the diversion bottle, and a plurality of clamping grooves distributed in the circumferential direction are formed in the thickening layer; a rotating shaft is fixed on the thickening layer, and a limiting rotating disc is rotationally connected to the rotating shaft; a thickening layer is additionally arranged at the bottom of an original flow guide bottle, and a supporting mechanism, a supporting ring, a sleeving piece, anti-skid lines, a hand screwing bolt, a connecting strip, a limiting rotating disc, a rotating shaft, a limiting groove, an embedding opening, an elastic clamping head, a positioning groove and a clamping groove are arranged, so that the sleeving piece can be fixed to an infusion support, and therefore the flow guide bottle is placed in a suspended mode; and moreover, the flow guide bottle is fixed on the infusion support, so that medical staff can conveniently observe the internal liquid amount, diagnosis and treatment of the patient are facilitated, and the infusion support is high in practicability.

Landing zone markings for flow-directing stents are provided. An endovascular system includes an implant and a delivery system configured to deliver and deploy the implant to a treatment site in a blood vessel. The implant is radially expandable and configured to deploy in blood vessels ranging in diameter from a minimum to a maximum diameter. The delivery system includes a proximal landing zone indicator comprising a radiopaque marker having a length from a proximal end to a distal end, wherein the proximal end of the radiopaque marker indicates the position of the proximal end of the implant when deployed at a treatment site in a blood vessel with the minimum diameter, and the distal end of the radiopaque marker indicates the position of the proximal end of the implant when deployed at a treatment site in a blood vessel with the maximum diameter. A method for delivering an expandable implant to a target site in a patient's vascular system is also disclosed.

The present invention provides a device and method for obtaining body fluid samples parenterally while reducing contamination from external microorganisms or other contaminants of the body fluid source, such as microorganisms present on the skin. [Solution] The device includes a pre-sample reservoir, a flow diversion mechanism, and a flow metering mechanism. The flow diversion mechanism has an inlet port that can be coupled to a lumen-defining device to receive body fluid from a patient, a first outlet port that can be fluidly coupled to the pre-sample reservoir, and a second outlet port that can be fluidly coupled to the sample reservoir. The flow diversion mechanism defines a first fluid channel and a second channel configured to arrange the first and second outlet ports so as to be in fluid communication with the inlet port, respectively. The flow metering mechanism is configured to measure the flow of a predetermined volume of body fluid through the first fluid channel to the pre-sample reservoir, measure the flow of a second volume of body fluid through the second fluid channel to the sample reservoir, and display volume indicators related to the predetermined volume and the second volume.