7 results about "Pericardial cavity" patented technology

A flushing system configured to flush a wound and / or a body cavity of a patient comprises: an infusion liquid outlet to connect a first tube guiding a flow of infusion liquid from the system to the wound and / or the body cavity; an effusion liquid inlet to connect to a second tube guiding the effusion liquid flow from the wound and / or the body cavity to the system; a flow rate control system to control the flow rate at the infusion liquid outlet; and a hematocrit sensor configured to optically measure the hematocrit value of the effusion liquid received via the effusion liquid inlet, to obtain a blood loss volume and / or a blood loss flow rate from the wound and / or the body cavity by means of emitting light having different wavelengths. The different wavelengths are respectively assigned to the green wavelength range and to the red or near-infrared wavelength range.

A cleaning system is provided for cleaning a patient's wounds and / or body cavities, particularly the pericardial cavity (PC) and / or pleural cavity. [Solution] The cleaning system includes a carrier unit configured to be movable, an inflow unit including at least one infusion fluid container for containing an infusion fluid, and a collection unit configured to collect exudate from a patient, wherein the carrier unit is configured to house the inflow unit and the collection unit, the inflow unit further includes at least one first weighing unit for measuring the weight of the infusion fluid delivered to the patient, and the carrier unit includes a second weighing unit for measuring the weight of the exudate collected in the collection device.

A flushing system comprises: an infusion liquid outlet to connect to a first tube arrangement having a plurality of infusion liquid lumen guiding a flow of infusion liquid from the system to a wound and / or body cavity; an effusion liquid inlet to connect to a second tube having an effusion liquid lumen guiding the effusion liquid from the wound and / or the body cavity to the system; and a flow rate control system to control the flow rate at the infusion liquid outlet. The flow rate control system comprises: a control unit, and a pump device to pump infusion liquid to the infusion liquid outlet at a flow rate adjustable by control signals of the control unit. Each infusion liquid lumen of the first tube arrangement has openings arranged along the first tube arrangement and spaced from one another for leading the infusion liquid into the wound and / or the body cavity.

The application provides a puncture needle in the technical field of puncture and puncture technology, and the puncture needle comprises a needle tube, a side tube and a support guide wire, a blade part is arranged at the distal end of the needle tube, and a syringe interface is arranged at the proximal end of the needle tube. One end of the side tube is fixedly arranged at the proximal end of the needle tube, and the inner cavity of the side tube is in communication with the inner cavity of the needle tube. The support guide wire is arranged in the inner cavities of the side tube and the needle tube, the support guide wire is arranged from the inner cavity of the side tube to the distal end direction of the inner cavity of the needle tube, and a blunt head is arranged at the end of the support guide wire close to the distal end, wherein the blunt head is adapted to be switched between a puncture state of being retracted into the inner cavity of the needle tube and a protection state of being extended out of the inner cavity of the needle tube. When the puncture needle enters the pericardial cavity, the blunt head is controlled to be extended out of the inner cavity of the needle tube, so that the blunt head shields the blade part of the needle tube, at this time, the puncture needle is shielded by the blunt head, a protection effect is achieved, direct contact between the puncture needle and the atrium, the ventricle or the coronary artery is avoided, and the puncture needle is prevented from piercing the atrium, the ventricle or the coronary artery.

A medical access system can comprise an inner needle assembly including an inner needle shaft configured to be slidably disposed at least partially within a delivery lumen of an outer needle assembly, the inner needle shaft comprising a narrower distal portion and a wider portion proximal of the narrower distal portion, and a transition segment between the narrower distal portion and the wider portion. A first delivery lumen within the inner needle shaft can extend from a proximal end of the inner needle shaft to a distal end opening at a distal end of the narrower distal portion, and a second delivery lumen within the inner needle shaft can extend from the proximal end to a distal opening associated with the transition segment.

The present application relates to the technical field of medical devices, and discloses a parallel double-blade radial flux total artificial heart, which comprises a shell, a left pump stator assembly, a left impeller, a right pump stator assembly, a right impeller and a circuit board, the shell has a left cavity, a right cavity and a circuit board mounting area, the left pump stator assembly is arranged in the left cavity, the right pump stator assembly is arranged in the right cavity, the circuit board mounting area is offset to one side of the distribution direction of the left pump stator assembly and the right pump stator assembly, the left impeller is arranged corresponding to the left pump stator assembly, and the right impeller is arranged corresponding to the right pump stator assembly to introduce the blood in the right atrium into the pulmonary circulation; in the above scheme, the circuit board mounting area is laterally offset to the left cavity and the right cavity on the basis of the middle layout, the redundant gap space is fully utilized, the compact integrated layout of the left pump stator assembly, the right pump stator assembly and the circuit board is realized, the volume of the total artificial heart is greatly reduced, the total artificial heart is adapted to the implantation space of the human pericardial cavity, and the implantation difficulty of the total artificial heart is reduced.

The present application provides a pericardial traction exposure device for minimally invasive cardiac surgery, and relates to the technical field of medical devices, which comprises a dilatation ring and a traction assembly arranged on the dilatation ring. The dilatation ring is a deformable elastic ring structure, which can gently and uniformly expand the pericardial tissue after being inserted into the pericardial cavity. The number of traction assemblies is multiple, and they are uniformly arranged on the outer periphery of the dilatation ring along the circumference. The traction assemblies work together to provide more uniform and stable traction force for the pericardial tissue, effectively exposing the heart and providing a clearer surgical field for the surgeon, simplifying the surgical steps, reducing the operation complexity, and improving the overall efficiency and safety of the surgery. Moreover, the dilatation ring and the traction assembly of the present application do not need to be pulled out from the chest wall after traction of the pericardial tissue, avoiding additional surgical incisions and being beneficial to the postoperative recovery of the patient.