Abstract: A blood bag system includes a clamp installed in a flexible first tube. The clamp includes: a base section having a protrusion section, an opening/closing section having a pressing protrusion section that presses a side surface of the first tube, and a bent section that connects the base section and opening/closing section. The base section is provided with a pair of cutout sections opened to a side surface where the first tube can be inserted by interposing the protrusion section. The clamp is configured such that a portion of the first tube where the clamp is installed is bent while the clamp is released.
Abstract: A medical device and treatment method are configured to form a hole as a passage, which is used for treatment, in biological tissues without puncturing the biological tissue and while reducing the influence on a living body The medical device includes: a shaft portion which is elongated, a pressing portion on a distal side of the shaft portion to press the tissue, and a thrusting portion provided further on the distal side of the shaft portion than the pressing portion and configured to be thrust into a joint portion of the tissue. When pressing the biological tissue using the pressing portion, a direction from the shaft portion to the pressing portion and a direction from the shaft portion to the thrusting portion are different from each other, and the pressing portion can be expanded and contracted in an expansion direction intersecting a shaft center direction of the shaft portion.
Abstract: A catheter assembly includes a hollow catheter; a catheter hub fixed onto a base end portion of the catheter, the catheter hub having an internal passage communicating with an inside of the catheter; a needle disposed in the catheter; a needle hub; a valve element including an opening and closing unit configured to be opened and closed; an operation member including a tubular body, the operation member being configured such that an opening portion of the operation member is insertable into the opening and closing unit to cause the base end side and a tip side of the catheter hub to communicate with each other; a communication unit; and a sealing member including a tubular body, the sealing member being disposed at a base end side of the valve element and being configured to allow the passage of air and prohibit the passage of liquid.
Abstract: A catheter system includes a shaft main body having a rotation axis lumen including a rotation central axis, a revolving lumen that revolves around the rotation axis lumen when the shaft main body is rotated about the rotation central axis, a side-by-side portion in which at least a portion of the rotation axis lumen and at least a portion of revolving lumen exist in side-by-side relationship, and a branch part at which the revolving lumen branches off from the side-by-side portion on a distal side relative to the branch part. The revolving lumen on the distal side relative to the branch part is formed of a distal shaft which has a proximal-side bending portion that bends in such a direction as to become farther away from the rotation axis lumen in radial direction and an opening that communicates with the revolving lumen.
Abstract: A guiding catheter assembly includes a guiding catheter which has a catheter main body and a protective sheath in covering relation to the outer peripheral portion of the catheter main body, and a dilator insertable into the guiding catheter. The protective sleeve can be moved in an axial direction with respect to the catheter main body. The protective sheath has a thin film portion which is formed of a tube-like thin film and through which the catheter main body can be inserted, and a housing portion which includes a lumen through which the catheter main body can be inserted.
Abstract: A hemostatic device is disclosed, which capable of favorably keeping strength of an inflatable portion and easily adjusting a discharge speed of gas. The hemostatic device includes a band for wrapping around a wrist, a fastener or means for securing that secures the band to the wrist in a wrapped state, an inflatable portion connected to the band and inflated by being injected with gas, and a filter member that controls discharge of gas injected into the inflatable portion, in which the band has one or more hole portions penetrating between an inner surface and an outer surface of the band, the inflatable portion is disposed to cover the hole portions on the inner surface of the band, and the filter member is disposed on the band to block the hole portions and controls discharge of gas from the hole portions.
Abstract: A hemostatic device is disclosed, which capable of favorably maintaining strength of an inflatable portion and reducing a pressing force acting on a site where bleeding is to be stopped over time to such an extent that vascular occlusion can be prevented without operation by a doctor or a nurse. The hemostatic device includes a band for wrapping around a wrist, a fastener or means for securing the band to the wrist in a wrapped state, and an inflatable portion connected to the band and inflated by being injected with a gas, in which the inflatable portion includes a resin layer made of a resin material, a particulate portion dispersed in the resin layer, and a space portion formed around the particulate portion. The space portion contains gas dispersed in the resin layer so as not to communicate between an inner surface and an outer surface of the resin layer.
Abstract: A hemostatic device includes a band for wrapping around a puncture site of a wrist , a mechanism for securing the band to the wrist in a wrapped state, an inflatable portion connected to the band and inflated by being injected with gas, an injection part which is elastically transformable and is capable of injecting air into the inflatable portion, and a tube body that connects an inflatable space of the inflatable portion and a housing space of the injection part to each other, in which the tube body has a hole portion opening in the inflatable portion and a cover portion disposed on the tube body to cover the hole portion, and the cover portion has a communication portion that allows communication between the inflatable space and the housing space by air discharged from the hole portion when air is injected into the inflatable portion from the injection part.
Abstract: A hemostatic device includes a band for wrapping around a puncture site of a wrist, a mechanism for securing the band to the wrist in a wrapped state, an inflatable portion connected to the band and inflated by being injected with air, a tube body that communicates between an inflatable space of the inflatable portion and an outside, and a cover portion that covers the tube body in the inflatable portion, in which the tube body has a hole portion that opens in the inflatable portion, the cover portion has a communication portion that is disposed to cover the hole portion and allows communication between the hole portion and the inflatable portion by being positioned to overlap the hole portion, and the tube body is movable relative to the cover portion so that a positional relation between the communication portion and the hole portion is controllable.
Abstract: A catheter assembly is disclosed, which includes a housing; a catheter; a catheter hub disposed in the housing and fixed to a proximal end portion of the catheter; a needle having a needlepoint, and inserted into the catheter so as to be separable; a protector displaceable in an axial direction of the housing, and disposed in the housing, and configured to cover at least the needlepoint of the needle in accordance with evulsion of the needle from the catheter; a needle support portion configured to support the needle through the catheter on a distal end side and distally of the catheter hub; the needle support portion being movable with respect to the housing in order to change from a first state of supporting needle to a second state of releasing the support of the needle and allowing the catheter hub to pass.
Abstract: The disclosed guidewire includes a wire main body possessing an elongated shape and a cylindrical body possessing a cylindrical shape. The distal portion of the wire main body is positioned in the cylindrical body. The guidewire has an inner coil disposed between the wire main body and the cylindrical body. The inner coil includes a wire rod wound in a spiral shape along the outer circumferential portion of the wire main body. There is an interval between the wire rods adjacent to each other in a longitudinal direction of the wire main body that is adjustable. The guidewire also has an operation member that changes the interval between the wire rods of the inner coil.
Abstract: A outer cylinder packaging for prefilled syringes includes a container having an upper face that has an upper face opening; an outer cylinder holding member that is located in the container and includes at least one outer cylinder holding opening part; at least one outer cylinder for prefilled syringe that is held by the outer cylinder holding member; and a removable sheet-shaped lid member that seals the upper face opening of the container. The outer cylinder for prefilled syringe includes: an outer cylinder main body part; a flange part; a nozzle part that is provided at a tip part of the outer cylinder main body part and has a tip opening part at its tip; and a distal cylindrical part that covers the nozzle part, has a diameter that is larger than an outer diameter of the outer cylinder main body part, and passes through the outer cylinder holding opening part.
Abstract: A syringe includes a gasket, a barrel, and a plunger. The plunger includes a helical rib provided at a head portion, and the gasket includes a threaded engagement portion configured to threadedly engaged with the helical rib, a plunger-retaining annular rib, and an accommodation portion for accommodating a part of the plunger at which the helical rib is formed. The annular rib includes a rib absent portion for guiding, to the accommodation portion, the helical rib reaching the annular rib. The gasket further includes an intermediate annular rib provided at a part on a proximal side of the retaining annular rib and a part defined on a side of the distal end of the helical projection, between a distal side annular rib and a proximal side annular rib.
Abstract: A catheter assembly includes a catheter, a catheter hub fixed to the proximal end of the catheter, a needle positioned inside the catheter, a gripping member connected to a proximal portion of the inner needle, a catheter operating member connected to the catheter hub and movable in the longitudinal direction relative to the inner needle, a guide wire slidably positioned in the inner needle and possessing a length longer than both the inner needle and the catheter, and a wire operating member connected to the guide wire so that movement of the wire operating member results in movement of the guide wire. The catheter operating member is configured to press a portion of the catheter between the proximal end of the catheter and the distal end of the catheter when the user presses on the catheter operating member while puncturing a living body with the needlepoint.
Abstract: A medical puncture needle includes an end portion including a needle tip; and a main body portion contiguous with the end portion, having a substantially circular cross-sectional outer shape. The end portion includes a first bevel formed by a curved surface, the bevel having an angle that gradually decreases toward the needle tip in an axial direction, in a cross-section orthogonal to the axial direction, relative to an imaginary plane that extends along an axis of the main body portion.
Abstract: In a method for diagnosing, validation of diagnosis and treating a patient having lesions in both arteries of left and right lower limbs. By determining that a smaller vessel diameter lesion to be treated first, catheters and an operation time can be reduced is to be treated first on a priority basis based on diagnostic data, deciding that a larger vessel diameter lesion is to be treated next, then treating the lesions substantially continuously.
Abstract: A pulmonary function measurement device, a pulmonary function measurement method, and a pulmonary function measurement program are provided which are non-invasive and can operate with a reduced burden on a measurement subject. The pulmonary function measurement device for measuring data for evaluating a pulmonary function includes a sound output unit that is capable of being fixed to a part of a body surface near ribs, and outputs a sound toward the ribs; a sound detection unit that is capable of being fixed to a part of a body surface near the ribs toward which the sound is to be output, and detects a sound that is transmitted from the sound output unit through the ribs; and an attenuation calculation unit that calculates an acoustic attenuation from information on the sound output by the sound output unit and the sound detected by the sound detection unit.
Abstract: In a method for diagnosing, validating and treating a patient having lesions in both arteries of left and right lower limbs. By determining that a smaller curvature of lesion to be treated first, catheters and an operation time can be reduced is to be treated first on a priority basis based on diagnostic data, deciding that a larger lesion curvature is to be treated next, then treating the lesions substantially continuously.
Abstract: For treatment of a patient who has a lesion in each of left lower limb artery and right lower limb artery, lesions at both sides can be rather easily and completely treated. A catheter is introduced from an artery of an arm of the patient, and an atherectomy catheter is used for a lesion at one side and continuously used for a lesion at the other side without being extracted to the outside of a human body, and thus damage of an excision portion of the atherectomy catheter and an unexpected situation such as no passage through twisted blood vessels are avoided so that a burden on the patient can be reduced, the treatment can be completed within a short time, and cost reduction can be achieved by reducing the number of catheter to be used.
Abstract: A method for diagnosing, validation of diagnosis and treating a patient having lesions in both arteries of left and right lower limbs. By determining that a larger vessel diameter lesion to be treated first, catheters and an operation time can be reduced is to be treated first on a priority basis based on diagnostic data, deciding that a smaller vessel diameter lesion is to be treated next, then treating the lesions substantially continuously.