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US 12,642,705 B2Granted
Dressing material for puncture
AssigneesNichiban Co., Ltd., The University of Tokyo
InventorsTatsuya Kanemaru, Kyohei Matsuo, Subaru Matsuo, Hiromi Sanada, Ryoko Murayama, Mari Abe
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Abstract
A dressing material for puncture of the present invention includes a support film, a frame sheet, and a release liner, which are laminated from an upper side in this order. An adhesive is used to bond the support film and the frame sheet, and bond the frame sheet and the release liner. The support film is a base material having a thickness of from 10 μm to 80 μm. The adhesive has a mass per unit area of from 30 g/m2 to 80 g/m2.
Claims18
A dressing material for puncture, comprising:
- a support film having an ultrasonic transparency;
- a frame sheet including an observation window to observe a holding state of a tip of a puncture device fixed to a body surface;
- and
- a release liner, wherein
- the support film, the frame sheet, and the release liner are laminated from an upper side in this order,
- an adhesive is used to bond the support film and the frame sheet, and bond the frame sheet and the release liner,
- the support film is a film base material having a thickness of from 10 μm to 80 μm, and
- the adhesive has a mass per unit area of from 30 g/m2 to 80 g/m2;
- wherein the adhesive that bonds the support film and the frame sheet has a storage elastic modulus of 15 KPa or less and a loss tangent (tan δ) of 0.4 or more at an angular frequency of 1 rad/s obtained by a dynamic viscoelasticity measurement at 32° C.
6 more elements
A dressing material for puncture, comprising:
- a support film having an ultrasonic transparency;
- a frame sheet including an observation window to observe a holding state of a tip of a puncture device fixed to a body surface;
- and
- a release liner, wherein
- the support film, the frame sheet, and the release liner are laminated from an upper side in this order,
- an adhesive is used to bond the support film and the frame sheet, and bond the frame sheet and the release liner,
- the support film is a film base material having a thickness of from 10 μm to 80 μm, and
- the adhesive has a mass per unit area of from 30 g/m2 to 80 g/m2;
- wherein the adhesive that bonds the support film and the frame sheet has a storage elastic modulus of 28 KPa or less and a loss tangent (tan δ) of 0.65 or more at an angular frequency of 1 rad/s obtained by a dynamic viscoelasticity measurement at 32° C.
6 more elements
Dependencies are inferred from the claim text.