Resin Puncture Needle with Groove Structure
Summary
USPTO published patent application US20260091178A1 by DAIWA CAN COMPANY for a resin puncture needle with an integral groove structure. The needle includes a body portion with a fluid passage, a puncture portion, and a groove portion with protrusions that form a channel communicating with the passage. Inventors: Toshihiro ASANO and Makoto TAKAMI. Application No. 19413343 filed December 9, 2025.
What changed
USPTO published patent application US20260091178A1 for a puncture needle made of resin featuring a groove structure. The needle portion integrally includes a body portion with a fluid passage, a puncture portion on the distal side, and an intermediate portion between them. The groove portion includes a bottom surface and a pair of protrusions extending axially, forming a channel that communicates with the body passage and opens externally. CPC classifications: A61M 5/3286 and A61M 5/329.
This is a published patent application, not a regulatory action. Medical device manufacturers developing puncture needles or similar fluid-delivery devices should review this application to assess potential prior art implications for their own IP portfolios. No compliance deadlines or penalties apply. Entities with competing technologies may file third-party observations if needed.
Archived snapshot
Apr 2, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
PUNCTURE NEEDLE, PUNCTURE TOOL, AND PUNCTURE TOOL ASSEMBLY
Application US20260091178A1 Kind: A1 Apr 02, 2026
Assignee
DAIWA CAN COMPANY
Inventors
Toshihiro ASANO, Makoto TAKAMI
Abstract
A puncture needle made of a resin, includes: a needle portion and a groove portion. The needle portion integrally includes: a body portion including a passage passing a fluid therethrough, a puncture portion on a distal side of the body portion, and an intermediate portion therebetween. The groove portion includes: a bottom surface arranged on the intermediate portion and extending from the body portion toward the puncture portion, and a pair of protrusions arranged on the bottom surface, extending from the body portion toward the puncture portion in a direction along an axial center of the needle portion, and protruding from the bottom surface in a direction intersecting the axial center of the needle portion. A channel of the groove portion formed between the bottom surface and the pair of protrusions communicates with the passage of the body portion and is opened toward an outside of the intermediate portion.
CPC Classifications
A61M 5/3286 A61M 5/329
Filing Date
2025-12-09
Application No.
19413343
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