Abstract: A liquid medicine administration device includes: a housing having a hollow cylindrical shape; a syringe disposed within the housing, the syringe including a barrel filled with a liquid medicine; a syringe holder that accommodates the syringe, holds the syringe, and is disposed within the housing so as to be movable in an axial direction of the housing; and a double-ended needle including a first needle portion that protrudes in a distal direction for puncturing a puncture site, and a second needle portion that protrudes in a proximal direction. The syringe holder includes a holding portion that holds a distal portion of the syringe coaxially with a distal portion of the syringe holder by elastically biasing the distal portion of the syringe radially inward.

Abstract: A hemostatic device is configured to secure an injection member, used to inject fluid into an inflatable member, to a cover member and prevent the hemostatic device and the inflatable member from being displaced. The injection member includes a connector portion and a tube member coupled to an inflatable member. In addition, a securing member configured to secure the injection member to a cover member includes a main body connecting the connector portion and the tube member, claw portions extending parallel with the main body toward the inflatable member, coupling portions configured to allow the cover member to be positioned between the main body and the claw portions and coupling the main body and the claw portions, and a width of the claw portions is smaller than a width of the main body at a position where the claw portions overlap the main body in a plan view.

Abstract: A puncture needle includes: a rod-shaped main body; a blade surface portion formed at a distal end of the main body, the blade surface portion including a front-side blade surface extending so as to be inclined with respect to an axis of the main body; a planar first back surface portion formed on a back surface side of the front-side blade surface at the distal end of the main body; and a planar second back surface portion formed on the back surface side of the front-side blade surface at the distal end of the main body. The first back surface portion and the second back surface portion are parallel to the axis or come closer to each other toward a needle tip, and do not intersect with each other at the needle tip.

Abstract: A liquid medicine administration device includes: a housing having a hollow cylindrical shape; a syringe unit accommodated in the housing so as to be movable in a distal direction along an axial direction of the housing, the syringe unit comprising a syringe, the syringe including: a barrel having a medicine chamber filled with a liquid medicine, and a gasket slidable inside the barrel in a liquid-tight manner; a double-ended needle disposed inside the housing and comprising a first needle portion that protrudes in the distal direction for puncturing a puncture site, and a second needle portion that protrudes in a proximal direction toward the syringe; and a guide mechanism that is interposed between the housing and the syringe unit and that guides the syringe unit in the distal direction. The guide mechanism includes: a guide rib, and a guide groove.

Abstract: A manufacturing method for a packaged medicine administration device that includes a medicine administration device including an outer tube filled with a medicine, and a puncture device for medicine administration; a cylindrical case encapsulating and holding the medicine administration device; and a package accommodating the cylindrical case-encapsulated medicine administration device encapsulated and held by the cylindrical case, the package being sealed, the manufacturing method including: a step of preparing the cylindrical case-encapsulated medicine administration device; a step of adding hydrogen peroxide to a site to be located on an inner side of the cylindrical case; a step of accommodating the cylindrical case-encapsulated medicine administration device in the package; a step of sealing the package; and a step of sterilizing the cylindrical case-encapsulated medicine administration device with a hydrogen peroxide atmosphere formed by the added hydrogen peroxide in a state in which the package is sea

Abstract: A medical device for crushing an object in a body lumen, the medical device including: an elongated shaft portion rotatably driven; a crushing unit provided with bendable wire rods and rotatable together with the shaft portion; and a sliding unit fixed to each of end portion of the wire rods on at least one of a distal side of and a proximal side of the wire rods and is interlocked with the shaft portion so as to be slidable in an axial direction of the shaft portion. The shaft portion is provided with contact portions that come into contact with the sliding unit during rotation and limit relative rotation of the shaft portion and the sliding unit. After the sliding unit is attached to the contact portions, the sliding unit rotates in the same direction as the shaft portion along with the rotation of the shaft portion.

Abstract: A transfer instrument includes an outer cylinder and a carrier member (first carrier member) including a shaft (first shaft) and a support portion (first support portion) having a sheet shape. The support portion is retracted in the outer cylinder with the support portion deformed into a curved shape at a first position where the shaft is moved in a proximal end direction relative to the outer cylinder so as to cause the support portion to retract in the outer cylinder. When a center portion of a front surface of the first support portion in a width direction faces upward in an unfolded state of the first support portion, both sides of the front surface of the first support portion in the width direction face upward.

Abstract: In a transfer instrument, a medical sheet is supported by a first support surface of a first support portion and a second support surface of a second support portion. The second support portion has a shape tapered in a distal end direction of the transfer instrument.

Abstract: A transfer instrument is provided with a carrier holding portion at a distal end of a second shaft. The carrier holding portion includes a pressing surface and a first projection. The pressing surface presses a medical sheet supported on a first support surface of a first support portion in a distal end direction. The first projection is provided remote from the first support surface relative to the pressing surface and protrudes in the distal end direction relative to the pressing surface.

Abstract: A compression device according to the present disclosure is provided with an adhesive sheet provided with an adhesive surface that can be adhered to a living body surface, an expansion member including an expandable expansion portion, a base member fixed to a fixing surface on a side opposite to the adhesive surface of the adhesive sheet and capable of pressing the expansion portion in an expanded state toward the living body surface, and a liquid guide member into which a release liquid can permeate, the liquid guide member provided with a main body adhered in the adhesive surface of the adhesive sheet, and the main body extending to a position of an outer edge of the adhesive surface.

Abstract: A first carrier member of a transfer instrument includes a first shaft disposed inside an outer cylinder so as to be movable along an axial direction, and a first support portion having a sheet shape and disposed at a distal end of the first shaft. The first support portion includes a first support surface capable of holding a medical sheet, a pair of first protrusions protruding upward from the first support surface, and a first bent portion provided at a boundary between the first support surface and each of the first protrusions and obtained by bending the first protrusion. The first support portion includes a first slit provided in each of the first bent portions and passing through the first support portion in a thickness direction.

Abstract: A transfer instrument includes an outer cylinder and a carrier member (first carrier member) including a shaft (first shaft) and a support portion (first support portion) having a sheet shape. The support portion is capable of holding a medical sheet larger than the support portion in a width direction orthogonal to an axial direction of the outer cylinder. The support portion is capable of holding the medical sheet so as to bring a portion of the medical sheet protruding from the support portion into contact with another portion of the medical sheet with the support portion retracted in the outer cylinder and deformed into a curved shape.

Abstract: A medical container for accommodating a protein solution formulation, in which the medical container is formed from a cycloolefin polymer, sterilized with high-pressure steam, and suppresses oxidization of amino acid residues in a protein in a protein solution formulation accommodated in the medical container.

Abstract: A hemostatic device includes a main body having a retaining portion that has a two-layer structure and retains a support member, with the retaining portion including an upper surface region on an upper surface side of the support member, a lower surface region on a lower surface side of the support member and facing the upper surface region across the support member, and a curved region connecting the upper surface region and the lower surface region on a proximal side of the support member. The curved region is formed by folding a part of the main body toward the first band body side, and the lower surface region includes a constricted portion on the side where the curved region is disposed. The width of the lower surface region in the constricted portion decreases from the first band body side to the side where the curved region is disposed.

Abstract: A medical device includes an expansion body, a shaft portion, an energy transmission portion along the expansion body, and a conductive portion that supplies power to the energy transmission portion. The conductive portion includes an integrated flat plate-shaped member including a deformation portion that deforms according to expansion and contraction of the expansion body and an extension portion extending in a proximal direction from a proximal end of the deformation portion. A width direction of the flat plate-shaped member is substantially parallel to a tangential direction with respect to a circle centered on a central axis of the expansion body, and the extension portion includes a bent portion in which a direction extending in a length direction of the extension portion is bent, and a spiral portion extending in a proximal direction from the bent portion and spirally wound around an inner tube.

Abstract: A puncture needle for medical use includes: a main body that has a hollow portion and that includes a distal end portion including a blade surface. The blade surface includes: a first blade surface portion that extends so as to incline with respect to a central axis of the main body and that has an inner edge defining a distal-end opening of the hollow portion, and a second blade surface portion formed on a distal side of the blade surface. A blade edge having a needle tip at one end is formed by a ridge line where the first blade surface portion meets the second blade surface portion. The first blade surface portion includes a concave curved surface that is concave and curved in a side view of the main body.

Abstract: A medical system includes a control unit that executes control of setting a first period in which cerebrospinal fluid is discharged from a body cavity while a fluid is injected into the body cavity and a second period in which the fluid is not injected into the body cavity and the cerebrospinal fluid is not discharged from the body cavity and alternately repeating the first period and the second period.

Abstract: A hemostatic device capable of appropriately aligning an inflatable portion in a deflated state with a puncture site, even in a case where inflating and deflating of the inflatable portion have been repeated, includes a cover member configured to cover a first puncture site, and a pressing member connected to the cover member and configured to compress the first puncture site. The pressing member includes an inflatable portion configured to be able to inflate and deflate by injection of a fluid, and an injection portion configured to be able to inject the fluid into the inflatable portion. The inflatable portion includes a bottom surface portion, a column portion rising from the bottom surface portion, and a curved surface portion forming an upper surface of the column portion in an inflated state. A thickness of the curved surface portion is formed to be thinner than a thickness of the column portion.

Abstract: A compression device includes an adhesion sheet including an adhesion surface; and a compression member mounted on the adhesion sheet and configured to compress a biological surface. The compression member includes a fixing portion fixed to the adhesion sheet on a side of the sheet opposite the adhesion surface in a thickness direction, and a compression main body portion provided in a portion of the compression member, in a plan view seen along the thickness direction, that does not overlap the adhesion sheet. The compression main body is configured to protrude or be protrusible further toward one side in the thickness direction than the adhesion surface. The adhesion sheet includes a first portion to which the fixing portion is fixed and a second portion to which the fixing portion is not fixed. The second portion is provided on at least a compression main body portion side of the adhesion sheet.

Abstract: A testing device includes a tube having a lumen, a board provided with a recessed holding groove for holding the tube in a deformed state, and a collecting container placed on the distal side of the tube and used to store liquid flowing in from an injection tool. The holding groove has a groove shape including a first straight portion, a first meandering portion adjacent to a distal end of the first straight portion, a second straight portion adjacent to a distal end of the first meandering portion, a second meandering portion adjacent to a distal end of the second straight portion, and a third straight portion adjacent to a distal end of the second meandering portion as seen from an insertion direction of the elongated medical body. The holding groove deforms and holds the tube according to the groove shape when the tube is fitted into the holding groove.