Medical apparatus to be placed on the surface of a living body and an indwelling device that includes such a medical apparatus

A medical apparatus to be placed on a surface of a living body comprising:

• a main body possessing a lower surface;
• an attaching sheet possessing an upper surface and a lower surface, the upper surface of the attaching sheet facing towards the lower surface of the main body, the lower surface of the attaching sheet being provided with an adhesive to adhere to the surface of the living body;
• an elastically deformable intermediate member positioned between the attaching sheet and the main body, the intermediate member being positioned in a plane and including an upper surface facing towards the main body and a lower surface facing towards the attaching sheet;
• the intermediate member including a base, the intermediate member also including first and second extending portions that extend away from the base and that are parallel to one another, the first and second extending portions being movable relative to one another and in opposite directions out of the plane;
• a first fixing portion positioned between the intermediate member and the attaching sheet, the first fixing portion being fixed to at least a part of the upper surface of the attaching sheet and to the lower surface of the base of the intermediate member so that the base of the intermediate member is fixed to the attaching sheet;
• a second fixing portion positioned between the intermediate member and the main body, the second fixing portion being fixed to at least a part of the upper surface of the base of the intermediate member and to the lower surface of the main body so that the base of the intermediate member is fixed to the main body;
• the first extending portion is fixed to the attaching sheet and is movable relative to the main body;
• the second extending portion is fixed to the main body and is movable relative to the attaching member;
• and
• wherein one of the first extending portion and the second extending portion is a central piece protruding from a central portion in a width direction of the base, and wherein another one of the first extending portion and the second extending portion is a pair of arm pieces protruding from both sides in the width direction of the base.

A drug administration device comprising:

• a drug supply source;
• a tube connectable to the drug supply source;
• and
• an administration unit connectable to the tube and configured to administer a drug from the drug supply source and through the tube when the tube is connected to both the drug supply source and the administration unit;
• the drug supply source comprising:
• a main body possessing a lower surface to face toward a surface of a living body;
• an attaching sheet possessing an upper surface and a lower surface, the upper surface of the attaching sheet facing towards the lower surface of the main body, the lower surface of the attaching sheet being adapted to face towards the surface of the living body;
• an elastically deformable intermediate member positioned between the main body and the attaching sheet;
• the intermediate member including a base, a first extending portion and a second extending portion, the first and second extending portions extending parallel to one another and away from the base;
• a first fixing portion fixed to a lower surface of the base of the intermediate member and to the upper surface of the attaching sheet;
• a second fixing portion fixed to an upper surface of the base of the intermediate member and to the lower surface of the main body;
• the first extending portion being not fixed to the main body;
• the second extending portion being not fixed to the attaching member;
• and
• wherein one of the first extending portion and the second extending portion is a central piece protruding from a central portion in a width direction of the base, and wherein another one of the first extending portion and the second extending portion is a pair of arm pieces protruding from both sides in the width direction of the base.

A method comprising:

• performing a medical procedure on the patient;
• indwelling an administration unit on a body surface of the patient after the performing of the medical procedure on the patient;
• connecting the administration unit to a drug supply source, the drug supply source containing a drug and comprising:
• a main body possessing a lower surface;
• an attaching sheet possessing an upper surface and a lower surface, the upper surface of the attaching sheet facing towards the lower surface of the main body;
• an elastically deformable intermediate member positioned between the main body and the attaching sheet, the intermediate member including a base possessing upper and lower surfaces, a first extending portion and a second extending portion, the first and second extending portions extending parallel to one another and away from the base;
• a first fixing portion fixed to the lower surface of the base of the intermediate member and to the upper surface of the attaching sheet;
• a second fixing portion fixed to the upper surface of the base of the intermediate member and to the lower surface of the main body;
• the first extending portion being not fixed to the main body;
• the second extending portion being not fixed to the attaching member;
• and
• wherein one of the first extending portion and the second extending portion is a central piece protruding from a central portion in a width direction of the base, and wherein another one of the first extending portion and the second extending portion is a pair of arm pieces protruding from both sides in the width direction of the base,
• placing the main body of the drug supply source on the body surface of the patient, the placing of the main body of the drug supply source on the body surface of the patient occurring before or after the connecting of the administration unit to the drug supply source;
• and
• administering the drug from the drug supply source to the patient by way of the administration unit that is indwelled on the body surface of the patient.