Medical suture thread
AssigneeKeisei Medical Industrial Co., Ltd.
InventorJumpei Matsuda
Life of this patent
Estimating the term…
Abstract
Provided is a medical suture thread as a multifilament, which is formed easily bendable and ensuring favorable operability. The medical suture thread 100 includes a core thread 110 and an outer thread 120. The core thread 110 includes multiple twisted ultrafine threads 111, and is arranged at a center portion of the medical suture thread 100. In the ultrafine thread 111, an inner-filament cover layer 112 made of 2-methacryloyloxyethyl phosphorylcholine (MPC) is formed on an outer surface of a filament 111a. The outer thread 120 is formed to be braided with multiple ultrafine threads 121, and covers an outer surface of the core thread 110. In the ultrafine thread 121, an outer-filament cover layer 122 made of MPC is formed on an outer surface of a filament 121a.
Claims8
A medical suture thread as a multifilament comprising:
- a single thread having an assembly of a plurality of fibrous ultrafine threads,
- wherein the ultrafine threads are arranged inside the multifilament,
- an inner-filament cover layer made of 2-methacryloyloxyethyl phosphorylcholine (MPC) is formed on an outer surface of each ultrafine thread not exposed at an outer surface of the multifilament,
- the inner-filament cover layer is formed to have a weight of equal to or greater than 0.05% and less than 0.3% with respect to a total weight of a filament forming each ultrafine thread, the inner-filament cover layer being formed on the filament, and
- the inner-filament cover layer is made only of MPC or a content of MPC in the inner-filament cover layer is the highest as compared to other components forming the inner-filament cover layer.
Dependencies are inferred from the claim text.