Liquid medicine administration device
AssigneeTerumo Kabushiki Kaisha
InventorKentaro NAKAJIMA
Life of this patent
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Abstract
A liquid medicine administration device includes: a catheter configured to be left in place in a living body; a catheter hub that holds a proximal end of the catheter; a holder that holds the catheter hub; an adhesive member that has an adhesive surface having adhesiveness and configured to be affixed onto a body surface of the living body, the adhesive member being fused to a back surface of the holder; a release sheet; and a fusion portion that extends along an outer periphery of the holder between the holder and the adhesive member and bonds the holder and the adhesive member to each other. The fusion portion comprises a general fusion portion, and a peeling assisting portion having a smaller bonding force than the general fusion portion.
Claims9
A liquid medicine administration device comprising:
- a catheter configured to be left in place in a living body;
- a catheter hub that holds a proximal end of the catheter;
- a holder that holds the catheter hub;
- an adhesive member that has an adhesive surface having adhesiveness and configured to be affixed onto a body surface of the living body, the adhesive member being fused to a back surface of the holder;
- a release sheet that is overlaid on the adhesive surface so as to cover the adhesive member and is configured to be peeled off from the adhesive surface when the holder is fixed to the body surface;
- and
- a fusion portion that extends along an outer periphery of the holder between the holder and the adhesive member and bonds the holder and the adhesive member to each other;
- wherein:
- the fusion portion comprises a general fusion portion, and a peeling assisting portion having a smaller bonding force than the general fusion portion.
A liquid medicine administration device comprising:
- a catheter configured to be left in place in a living body;
- a catheter hub that holds a proximal end of the catheter;
- a holder that holds the catheter hub;
- an adhesive member that has an adhesive surface having adhesiveness and configured to be affixed onto a body surface of the living body, the adhesive member being fused to a back surface of the holder;
- a release sheet that is overlaid on the adhesive surface so as to cover the adhesive member and is configured to be peeled off from the adhesive surface when the holder is fixed to the body surface;
- a fusion portion that extends along an outer periphery of the holder between the holder and the adhesive member and bonds the holder and the adhesive member to each other, the fusion portion being a portion at which the back surface of the holder has been thermally welded to the adhesive member;
- and
- a non-fusion portion having a shape of a cut-out in the fusion portion.
A liquid medicine administration device comprising:
- a catheter configured to be left in place in a living body;
- a catheter hub that holds a proximal end of the catheter;
- a holder that holds the catheter hub;
- an adhesive member that has an adhesive surface having adhesiveness and configured to be affixed onto a body surface of the living body, the adhesive member being fused to a back surface of the holder;
- a release sheet that is overlaid on the adhesive surface so as to cover the adhesive member and is configured to be peeled off from the adhesive surface when the holder is fixed to the body surface;
- and
- a fusion portion that extends along an outer periphery of the holder between the holder and the adhesive member and bonds the holder and the adhesive member to each other, wherein the fusion portion comprises:
- a first fusion portion at which the back surface of the holder has been thermally welded to the adhesive member at a first temperature, and
- a second fusion portion at which the back surface of the holder has been thermally welded to the adhesive member at a second temperature less than the first temperature such that a bonding force of the second fusion portion is less than a bonding force of the first fusion portion.
Dependencies are inferred from the claim text.