Abstract: A catheter including a tubular body, in which the tubular body includes a based portion and a shaped portion, the shaped portion includes a first bending portion, a first intermediate portion that is located on a distal side relative to the first bending portion, a second bending portion that is bent at a distal side relative to the first intermediate portion, a second intermediate portion that is located on a distal side relative to the second bending portion, a third bending portion that is bent at a distal side relative to the second intermediate portion, and a distal end portion that is located on a distal side relative to the third bending portion, the first bending portion and the first intermediate portion are located on a first plane, and the second bending portion and the second intermediate portion are located on a second plane different from the first plane.

Abstract: A medical elongated body and a medical elongated body set are constructed in a way that expedites medical instrument insertion into a tubular body lumen via a valve body. The medical elongated body includes a tubular body insertable into a body lumen, a hub having an internal space communicating with a lumen of the tubular body and disposed in a proximal portion of the tubular body, a valve body disposed in the internal space and having an insertion portion, and a cap member that fixes the valve body in the internal space by being attached to the valve body and has a proximal opening portion to communicate with the internal space via the insertion portion. The cap member has a marker portion that guides a medical instrument inserted into the tubular body to the valve body. The marker portion has a color distinguishable from a periphery of the marker portion.

Abstract: A catheter for a hepatic artery introduced from an arm of a patient includes a first bent portion, a second bent portion distal of the first bent portion and bent to the same side as the first bent portion, a third bent portion disposed on a distal side of the second bent portion and bent to an opposite side from the second bent portion, and a most distal end portion disposed distal of the third bent portion, in which a minimum radius of curvature of the first bent portion is larger than a minimum radius of curvature of the second bent portion. The most distal end portion is directed to a common hepatic artery and the first bent portion comes into contact with an aorta wall on an opposite side from a celiac artery when the second bent portion contacts a blood vessel wall of the celiac artery.

Abstract: A hemostatic device includes a covering member configured to cover a site where bleeding is to be stopped on a hand of a patient, a securing member configured to secure the covering member to the hand, an inflatable member connected to the covering member and inflatable by a fluid, and an auxiliary member having a smaller outer shape than the inflatable member. The covering member includes a body, a first arm protruding from a first side of the body, and a second arm protruding from a second side facing the first side. The body includes a first end portion located on a distal side of the body and a second end portion located on a proximal side thereof. The inflatable member is connected to the second end portion, and the auxiliary member is connected to the first end portion and is interposed between the body and the inflatable member.

Abstract: A hemostatic device is comprised of a covering member that includes a main body to which an inflatable member is connected, a first arm portion extending away from the main body, and a second arm portion extending away from the main body while forming an obtuse angle with a longitudinal direction of the first arm portion. The first arm portion includes an enlarged portion protruding in a width direction of the first arm portion at an end portion of the first arm portion. The second arm portion is longer than the first arm portion and is configured to be secured to the enlarged portion and to be secured to the second arm portion by passing between fingers of the patient in a state in which the second arm portion is wrapped around a limb of a patient.

Abstract: A hemostatic device includes a covering member having a main body connected to an inflatable member, a first arm portion extending from the main body, and a second arm portion extending from the main body in a direction different from a longitudinal direction of extent of the first arm portion. The first arm portion is configured to be secured to the second arm portion by virtue of a part of the first arm portion passing between fingers of a patient while the second arm portion is wrapped around a limb of the patient. The second arm portion has a belt portion for wrapping around the patient's limb and a support portion connecting the main body and the belt portion and located on a straight line connecting the first arm portion and the inflatable member. The belt portion is securable to the support portion while wrapped around the patient's limb.

Abstract: A catheter for a hepatic artery introduced from an arm of a patient includes a first bent portion, a second bent portion distal of the first bent portion and bent to the same side as the first bent portion, a third bent portion disposed on a distal side of the second bent portion and bent to an opposite side from the second bent portion, and a most distal end portion disposed distal of the third bent portion, in which a minimum radius of curvature of the first bent portion is larger than a minimum radius of curvature of the second bent portion. The most distal end portion is directed to a common hepatic artery and the first bent portion comes into contact with an aorta wall on an opposite side from a celiac artery when the second bent portion contacts a blood vessel wall of the celiac artery.

Abstract: A catheter for a hepatic artery introduced from an arm of a patient includes a first bent portion, a second bent portion distal of the first bent portion and bent to the same side as the first bent portion, a third bent portion disposed on a distal side of the second bent portion and bent to an opposite side from the second bent portion, and a most distal end portion disposed distal of the third bent portion, in which a minimum radius of curvature of the first bent portion is larger than a minimum radius of curvature of the second bent portion. The most distal end portion is directed to a common hepatic artery and the first bent portion comes into contact with an aorta wall on an opposite side from a celiac artery when the second bent portion contacts a blood vessel wall of the celiac artery.

Abstract: An introducer sheath includes a tubular body configured to be percutaneously inserted into a body lumen and a hub that is connected to a proximal portion of the tubular body, wherein the tubular body contains a polyamide resin having a structural unit derived from a cyclic aliphatic hydrocarbon, and a wall thickness/inner diameter ratio of the tubular body is 1/14 or less, and a kink radius/outer diameter ratio of the tubular body is less than 10.

Abstract: An introducer sheath, which is formed from a tubular member provided with a hollow portion through which an elongated body is freely insertable, and which includes a distal portion and a main body portion, wherein the inner diameter of the distal portion is formed to become gradually smaller toward the distal side, and on the inner surface of the distal portion, there is provided a hydrophobic coating having a friction coefficient lower than the friction coefficient of the tubular member.

Abstract: A catheter for a hepatic artery introduced from an arm of a patient includes a first bent portion, a second bent portion distal of the first bent portion and bent to the same side as the first bent portion, a third bent portion disposed on a distal side of the second bent portion and bent to an opposite side from the second bent portion, and a most distal end portion disposed distal of the third bent portion, in which a minimum radius of curvature of the first bent portion is larger than a minimum radius of curvature of the second bent portion. The most distal end portion is directed to a common hepatic artery and the first bent portion comes into contact with an aorta wall on an opposite side from a celiac artery when the second bent portion contacts a blood vessel wall of the celiac artery.

Abstract: A hemostatic device is disclosed, which includes a covering portion disposed so as to cover a site where bleeding is to be stopped on a hand of a patient; a pressing portion that compresses the site where bleeding is to be stopped when the covering portion covers the site where bleeding is to be stopped; a band portion wrappable around a periphery of the patient's hand at the site where bleeding is to stopped; a restriction portion that restricts movement of the securing portion in an axial direction; and wherein the pressing portion is not disposed on the centerline of the restriction.

Abstract: An introducer sheath is disclosed, which includes a tube body that is percutaneously inserted into a body lumen; and a hub that is connected to a proximal portion of the tube body. The tube body contains a polyvinylidene fluoride resin, a ratio of a thickness to an inner diameter of the tube body is 1/16 or lower, and a ratio of a kink radius to an outer diameter of the tube body is 9.5 or lower.

Abstract: A treatment method is disclosed, which is capable of causing a medical elongated body to indwell the inside of a palmar artery of a patient, while suppressing kink, poor torque transmission ability, and poor operability of the medical elongated body. The treatment method includes causing a sheath tube of an introducer introduced into a blood vessel via a puncture site formed on an ulnar artery side of a palmar artery of the patient, to indwell the puncture site.

Abstract: A hemostatic device can perform hemostasis by compressing a puncture site on a hand of a patient, and can prevent a movable range of fingers from being narrowed or can prevent misalignment at a wearing position, when the hemostatic device is worn on the hand. The hemostatic device has a covering portion to cover a site where bleeding is to be stopped on a hand of a patient, and a pressing portion that compresses the site where bleeding is to be stopped, in a state where the covering portion covers the site where bleeding is to be stopped. The covering portion includes a securing portion that surrounds at least a portion of the hand while covering the pressing portion, and a restriction portion that restricts a movement of the securing portion in an axial direction. The restriction portion is disposed between adjacent fingers and of the hand.

Abstract: A hemostatic device can perform hemostasis by compressing a puncture site on a hand of a patient, and can prevent a movable range of fingers from being narrowed or can prevent misalignment at a wearing position, when the hemostatic device is worn on the hand. The hemostatic device has a covering portion to cover a site where bleeding is to be stopped on a hand of a patient, and a pressing portion that compresses the site where bleeding is to be stopped, in a state where the covering portion covers the site where bleeding is to be stopped. The covering portion includes a securing portion that surrounds at least a portion of the hand while covering the pressing portion, and a restriction portion that restricts a movement of the securing portion in an axial direction. The restriction portion is disposed between adjacent fingers and of the hand.

Abstract: A medical elongated body and a medical elongated body set are constructed in a way that expedites medical instrument insertion into a tubular body lumen via a valve body. The medical elongated body includes a tubular body insertable into a body lumen, a hub having an internal space communicating with a lumen of the tubular body and disposed in a proximal portion of the tubular body, a valve body disposed in the internal space and having an insertion portion, and a cap member that fixes the valve body in the internal space by being attached to the valve body and has a proximal opening portion to communicate with the internal space via the insertion portion. The cap member has a marker portion that guides a medical instrument inserted into the tubular body to the valve body. The marker portion has a color distinguishable from a periphery of the marker portion.