Abstract: Provided is a vascular puncture device including a support table that is capable of supporting a main body including an imaging unit that is capable of coming into contact with a skin surface of an arm of a human body and acquiring a cross-sectional image of the arm, a drive unit that moves a puncture needle, and a control unit that is capable of controlling a movement of the drive unit, the support table including a holding unit capable of holding the arm, in which the support table is capable of supporting the main body and being separated from the main body.
Abstract: A nozzle, a coating device, and a coating method are able to selectively and easily apply a coating liquid to desired portion of a medical elongated body. The nozzle includes a nozzle distal portion that is provided with a holding space in which a coating liquid to be applied to a shaft can be held, and a nozzle main body portion that is provided with a lumen through which the coating liquid is delivered to the nozzle distal portion, and an opening portion via which the lumen and the holding space communicate with each other.
Abstract: A balloon catheter is disclosed which allows easier fusion-bonding between an inner tube shaft and an outer tube shaft and in which the inner tube shaft can be prevented from being warped when the inner tube shaft passes through a stenosed site, and a method of manufacturing such a balloon catheter. The balloon catheter includes an inner tube shaft having a first layer and a second layer located on an inner surface side of the first layer. The outer tube shaft is fusion-bonded to the first layer and recessed toward the inner tube shaft side. The first layer is formed of a material having higher optical absorption property than the outer tube shaft and the second layer. The second layer is formed of a material having a melting point higher than that of the first layer.
Abstract: A medical device is disclosed that can effectively destroy an object in a biological lumen, a method for controlling rotation of the medical device, and a rotation controller. The medical device to be inserted into a biological lumen to destroy a thrombus in the biological lumen includes a long shaft portion that is rotationally driven, a drive unit that rotates the shaft portion, a breaking member that is provided at a distal portion of the shaft portion and is rotatable, and a control unit that controls the rotation of the drive unit, in which the control unit controls the drive unit to repeat the rotation while interposing a stop of the rotation between rotations of the drive unit.
Abstract: A medical device and can remove an object inside a biological lumen while allowing a positional change of the device inside the biological lumen. The medical device includes a drive shaft, an outer tube accommodating the drive shaft, a cutting portion fixed to a distal portion of the drive shaft, and a hub unit housing proximal portions of the drive shaft and the outer tube. The hub unit has an operation unit fixed to the outer surface of the outer tube to rotate the outer tube, a first support portion rotatably supporting the operation unit, a first housing having an aspiration port for discharging fluid to outside, and causing communication of an aspiration lumen of the outer tube with the aspiration port, and a first seal between the first housing and the outer tube. The first support portion and the first seal are disposed in parallel along an axial direction.
Abstract: A compression device includes: an adhesion surface configured to be adhered to a biological surface; and an inflatable portion configured to compress the biological surface. The inflatable portion defines an accommodation space capable of accommodating a fluid, and the inflatable portion is capable of being inflated in a thickness direction from a flat deflated form and being changed to an inflated form by supplying the fluid to the accommodation space. The inflatable portion is provided with an inflation restricting portion that is provided at a position sandwiched or surrounded by inflation regions inflatable in the thickness direction in a plan view viewed along the thickness direction, and in which inflation in the thickness direction is restricted by the inflation regions.
Abstract: A conversion adapter is attachable to a female connector part comprising a male screw part to which a luer lock-type first male connector part conforming to ISO 80369 is connectable, and comprises: a female screw part screwable to the male screw part of the female connector part; and a locking unit configured to lock to a second male connector part not conforming to ISO 80369.
Abstract: In a stent, a second distance, which is a separation distance in the circumferential direction between an end point in the longitudinal direction of a second bent portion connected to an end portion on one end side of a second linear portion and an end point in the longitudinal direction of the second bent portion connected to a portion on the other end side of the second linear portion, is longer than a first distance, which is a separation distance in the circumferential direction between an end point in the longitudinal direction of a first bent portion connected to an end portion on one end side of any of first linear portions and an end point in the longitudinal direction of the first bent portion or the second bent portion connected to an end portion on the other end side of the first linear portion.
Abstract: A catheter having a catheter tube includes a first polyamide layer and a second polyamide layer disposed on an outer surface of the first polyamide layer. The first polyamide layer includes a pressure resistance enhancer in an amount greater than 10 wt. % of total solids content of the first polyamide layer and equal to or less than 30 wt. % of the total solids content of the first polyamide layer. According to the disclosure, a catheter is provided that includes a catheter tube having an inner surface with desirable slidability and having an excellent burst strength.
Abstract: A catheter fixing device includes a skin fixation part configured to come into contact with skin, a hub fixation part configured to retain a hub, and a movement mechanism provided between the skin fixation part and the hub fixation part and interlocking the hub fixation part with the skin fixation part such that the hub fixation part and the skin fixation part are movable relative to each other.
Abstract: A treatment method is disclosed, which includes preparing a catheter assembly by inserting an inner catheter into an outer catheter and screwing a protrusion of the outer catheter into a helical groove of the inner catheter; introducing the catheter assembly into the radial artery along a guide wire; pushing the catheter assembly along the guide wire to a target site in front of a stenosis of a blood vessel; releasing the screwing between the helical groove of the inner catheter and the protrusion of the outer catheter after a distal end of the catheter assembly reaches the target site; and causing the outer catheter to abut on at least a part of wall surfaces of a thoracic aorta and an abdominal aorta while drawing a helix and causing the treatment device to protrude from a distal end of the outer catheter at the stenosis.
Abstract: A catheter holder includes an attachment section configured to be attachable to a holder tube that accommodates at least a portion of a sheath of an image diagnosis catheter in a wound state, a support section extending from the attachment section in a direction away from the wound holder tube, and a fixing section provided on a second end side of the support section, which is opposite to a first end side of the support section on which the attachment section is provided, and configured to fix a unit connector and a hub of the image diagnosis catheter to hold the outer tube, which is exposed from an opening portion of the holder tube, in a linear shape to be fixed in position.
Abstract: Provided are a treatment method, a separation method, and a filter assembly capable of preventing so-called “Blue Toe syndrome” which is so-called cholesterol crystal embolism of which a fat-soluble compound such as cholesterol crystals generated during dilation of a stenosed site causes clogging in glomeruli of peripheral capillaries or kidney, acute renal failure, and the like. Cholesterol crystals generated from plaque during use of a balloon catheter are taken out of the body and removed using a centrifugal separation device or a filter, and usable living cells are returned to the body to reduce blood transfusion and reduce cholesterol crystal embolism.
Abstract: A prefilled syringe includes a barrel body, a gasket that seals a proximal end side of a medicine chamber of the barrel body, and a cap that is attached to a tip and seals a distal end side of the medicine chamber. The cap includes a surface area increasing member that extends to the proximal end side, is inserted into a flow path of the tip, and protrudes to the medicine chamber to increase a surface area of a medicine solidified in a lump in the medicine chamber.
Abstract: A catheter assembly includes: a catheter including a circumferential wall and a distal opening; an inner needle inserted through the catheter, the inner needle having a sharp needle tip at a distal end of the inner needle; and a deflection suppression mechanism that supports the inner needle via the catheter to suppress deflection of the inner needle, the deflection suppression mechanism including a contact support portion that is configured to support the catheter when the catheter is advanced with respect to the inner needle. The circumferential wall of the catheter includes one or more side holes. In an initial state before the catheter is advanced with respect to the inner needle, the contact support portion is located proximal of a distal-most one of the one or more side holes and a gap is formed between an outer surface of the catheter and an inner surface of the contact support portion.
Abstract: A transport container is configured to capture air bubbles remaining in a container with a simple mechanism and a simple operation to protect a graft. The transport container includes: a lid that seals a container for housing a graft, in which the lid has a protrusion protruding toward a space inside the container in a state of being attached to the container. A substantially annular groove is formed on a lower surface of the protrusion. Gas and liquid inside the container housing the graft and liquid are pushed out by the lid to achieve a liquid-tight state, and air bubbles in the liquid can be captured in the groove on the lower surface.
Abstract: A compression device set according to the present disclosure includes a compression device configured to be adhered to a biological surface and to compress the biological surface in a state of being adhered to the biological surface; and a pre-compression member attached to the compression device and configured to compress, before the compression device is adhered, the biological surface to which the compression device is to be adhered. The compression device includes an adhesion surface configured to be adhered to the biological surface, and a compression portion configured to compress the biological surface in a compression region that is sandwiched by the adhesion surface or surrounded by the adhesion surface. The pre-compression member includes a protruding portion protruding from the adhesion surface of the compression device and configured to compress the biological surface before the adhesion surface is adhered to the biological surface in the compression region.
Abstract: A symptom recording device includes a control unit that before a neck image is captured, confirms a state of a jugular vein, to the control unit displays an image obtained by an imaging element to be used for the captured neck image, the image to be used a preview image, outputs range instruction data for giving an instruction of an imaging range including a neck, thereby supporting the captured neck image, and records the captured neck image.
Abstract: A flow path is formed in a cassette body of a blood component collection cassette. The cassette body includes a bulging structure in which at least a portion of the flow path is formed. A first gripped member, which is configured to be gripped by a first gripping member provided on a centrifugal separation device, is disposed on one surface of the bulging structure in a thickness direction thereof. A second gripped member, which is configured to be gripped by a second gripping member to which a load detection unit that is provided on the centrifugal separation device is fixed, is disposed on another surface of the bulging structure in the thickness direction thereof.
Abstract: A catheter includes an elongated shaft extending in a longitudinal direction and possessing an outer surface, the shaft possessing a distal end, a proximal end and a proximal portion which includes the proximal end, a transverse direction being perpendicular to the longitudinal direction, the elongated shaft being an elongated tubular body having a lumen formed therein, and a tubular hub fixed by insert molding to the outer surface of the shaft along the proximal portion of the shaft. The hub possesses a residual stress at one predetermined location of the hub that exceeds the residual stress of the hub at each of: (i) a first position distal to the one predetermined location, (ii) a second position proximal to the one predetermined location, and (iii) a third position being at the one predetermined location in the longitudinal direction and spaced apart from the one predetermined location in the transverse direction.
July 1, 2021
Date of Patent:
November 14, 2023
TERUMO KABUSHIKI KAISHA
Takito Inukai, Shun Matsushita, Yuya Otake, Kota Hamuro