5 results about "Venous flow" patented technology

A shunt operable to be implanted on an eye is provided. The shunt includes a vein fluidic channel operable to be in fluid communication with an interior of the eye and operable to receive aqueous fluid from the interior of the eye. A body is fluidly coupled with the vein fluidic channel. A valve is disposed within the body and is operable to regulate intraocular pressure in the eye by opening and closing based on pressure from the aqueous fluid. A plurality of outlets are in fluid communication with the body opposite the vein fluidic channel in relation to the valve. The outlets are operable to release the aqueous fluid to the sclera of the eye.

A shunt operable to be implanted on an eye is provided. The shunt includes a vein fluidic channel operable to be in fluid communication with an interior of the eye and operable to receive aqueous fluid from the interior of the eye. A body is fluidly coupled with the vein fluidic channel. A valve is disposed within the body and is operable to regulate intraocular pressure in the eye by opening and closing based on pressure from the aqueous fluid. A plurality of outlets are in fluid communication with the body opposite the vein fluidic channel in relation to the valve. The outlets are operable to release the aqueous fluid to the sclera of the eye.

The utility model discloses an extracorporeal circulation blood path for hemodialysis and blood perfusion, which belongs to the technical field of medical instruments and comprises an arterial blood path and a venous blood path, and the arterial blood path comprises an aorta tube, a pump tube, an arterial pot inlet tube, an arterial pot outlet tube and an arterial pressure monitoring tube which are arranged along the flowing direction of arterial blood; the venous blood path comprises a venous pot inlet pipe, a venous pot outlet pipe, a hemodialyzer pipe and a venous pressure monitor which are arranged in the flowing direction of venous blood. The hemoperfusion device blood path comprises an artery connecting pipe, a vein connecting pipe, a waste liquid drainage pipe, an arteriovenous circulation pipe and a waste liquid bag connecting pipe. By means of the mode, connection needed by blood perfusion and connection needed by other blood purification modes (such as hemodialysis) are integrated together, medical staff do not need to splice various complex independent pipelines during operation, the operation process is simplified, and the hemodialysis efficiency is improved.

The invention belongs to the technical field of biomedical engineering and microfluidics, and particularly relates to an organoid-vascular system integrated development chip and a synchronous culture method thereof. The chip comprises an artery fluid channel, a vein fluid channel and at least one organoid culture unit connected between the artery fluid channel and the vein fluid channel, the organoid culture unit comprises a target organoid culture cavity and an artery / vein vessel organoid culture cavity which is communicated between the artery / vein channel and the target organoid culture cavity. According to the invention, a vascular organ is used as a vascular network hair growing center, is communicated with arteries / veins outwards under the guidance of a specific structure of the chip, and is integrated with a target organ inwards to form an artery-vascularized organ-vein structure. The method not only solves the problems of insufficient integration and asynchronous development of the organoid and the vascular system, but also has the research potential of high-throughput culture and multi-organ interaction, and provides a high-bionic in-vitro model for drug research and development and disease modeling.

Various systems and methods are provided for treating pulmonary edema. In general, a pump can be configured to be implanted within a patient at risk of developing edema. The pump can be configured to pump fluid out of the patient's lungs, e.g., out of the patient's interstitial and alveolar spaces. The pump can be configured to be fully implanted within the patient's body. The pump can be configured to continuously pump fluid, or the pump can be configured to be selectively actuatable in response to a trigger event. In an exemplary embodiment, the pump can include an inflow port coupled to an inflow tube in fluid communication with a lymphatic vessel of the patient, and can include an outflow port coupled to an outflow tube in fluid communication with a vein of the patient.