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US 2024/0324920 A1Published application
Medical needle
AssigneeTerumo Kabushiki Kaisha
InventorNorihiko TAKEDA
Life of this patent
Estimating the term…
Abstract
A medical needle includes a needle body, a hub, and a protector. The hub includes a first resin composition. The protector has a needle sheath that covers a part of the needle body. The needle sheath includes a second resin composition. The first resin composition and the second resin composition each contain polyvinyl chloride and a trimellitate. In the first resin composition, the trimellitate accounts for 10 to 20 phr. In the second resin composition, the trimellitate accounts for 40 to 50 phr.
Claims20
A medical needle comprising:
- a needle body;
- a hub that supports a proximal portion of the needle body in a longitudinal direction;
- and
- a protector that protects the needle body, wherein,
- the protector has a needle sheath that covers a portion of the needle body exposed from the hub,
- the needle sheath is separably joined to the hub,
- the hub includes a first resin composition and the needle sheath includes a second resin composition,
- the first resin composition contains polyvinyl chloride and a trimellitate which accounts for 10 to 20 phr, and
- the second resin composition contains polyvinyl chloride and a trimellitate which accounts for 40 to 50 phr.
6 more elements
A needle assembly, comprising:
- a needle body extending a length along a longitudinal direction from a proximal end portion of the needle body to a distal end portion of the needle body;
- a hub extending from a distal end of the hub to a proximal end of the hub, wherein the proximal end portion of the needle body is disposed in a retaining hole of the hub arranged at the distal end of the hub, wherein the distal end portion of the needle body is exposed from the distal end of the hub, and wherein the hub is made from a first material comprising a first resin composition, the first resin composition comprising a polyvinyl chloride base resin and a trimellitate plasticizer, the trimellitate plasticizer making up 10 phr to 20 phr of the first resin composition;
- and
- a needle protector that is separably attached to the distal end of the hub, the needle protector comprising:
- an inner sheath portion arranged in a position surrounding a portion of the needle body that is exposed from the hub, wherein the inner sheath portion is separably joined to the hub, wherein the inner sheath portion is made from a second material comprising a second resin composition, the second resin composition comprising a polyvinyl chloride base resin and a trimellitate plasticizer, the trimellitate plasticizer making up 40 phr to 50 phr of the second resin composition.
2 more elements
A medical needle, comprising:
- a needle body extending a length along a longitudinal direction from a proximal end portion of the needle body to a distal end portion of the needle body;
- a hub extending from a distal end of the hub to a proximal end of the hub, wherein the proximal end portion of the needle body is disposed in a retaining hole of the hub arranged at the distal end of the hub, wherein the distal end portion of the needle body is exposed from the distal end of the hub, and wherein the hub is made from a first material comprising a first resin composition, the first resin composition comprising a polyvinyl chloride base resin and a trimellitate plasticizer, the trimellitate plasticizer making up 10 phr to 20 phr of the first resin composition;
- and
- a needle protector that is separably attached to the distal end of the hub, the needle protector comprising:
- an inner sheath portion arranged in a position surrounding a portion of the needle body that is exposed from the hub, wherein the inner sheath portion is separably joined to the hub, wherein the inner sheath portion is made from a second material comprising a second resin composition, the second resin composition comprising a polyvinyl chloride base resin and a trimellitate plasticizer, the trimellitate plasticizer making up 40 phr to 50 phr of the second resin composition;
- and
- an outer sheath portion that is arranged in contact with and covering an outermost surface of the inner sheath portion.
4 more elements
Dependencies are inferred from the claim text.