公开(公告)号：US20240238068A1

公开(公告)日：2024-07-18

申请号：US18372237

申请日：2023-09-25

Applicant: SHOFU INC.

Inventor： Toshio SHIGA ,  Tsukasa SASAKI ,  Ryoji TAKEI ,  Toshiyuki NAKATSUKA ,  Shunsuke MIYATA ,  Hiroyuki KOBAYASHI ,  Akiko MATSUMOTO

IPC: A61C5/62 ,  A61M5/31

CPC classification number: A61C5/62 ,  A61M5/3134

Abstract: To provide a syringe tip that can prevent the syringe tip from unintentionally falling-off during filling and prevent viscous material from leaking out from gaps by securely attaching the syringe tip to a syringe and can provide excellent operability without obstructing a surgical field.
To provide syringe tip to be attached to a tip of a syringe containing viscous material to discharge the viscous material, comprising



a syringe engaging portion that engages with the syringe,
a cylindrical portion having a hollow portion with a virtual center line at its center and held by a user in the case of engaging the syringe tip with the syringe, and
a nozzle portion discharging the viscous material contained in the syringe,
wherein in the case that the maximum length (mm) between both end portions of the cylindrical portion on a virtual straight line orthogonal to the virtual central line is defined as first length A, the virtual straight line orthogonal to the virtual central line and including both end portions of the cylindrical portion constituting the first length A is defined as first virtual straight line, and the length (mm) between both end portions of the cylindrical portion on a second virtual straight line orthogonal to the virtual central line and orthogonal to the first virtual straight line is defined as second length B,
the first length A and the second length B satisfy the following relational expressions (1) to (3).






First length A/Second length B≥1.5  Relational expression (1):



13≥(First length A+Second length B)≥5  Relational expression (2):



5≥Second length B  Relational expression (3):

公开(公告)号：US20240252280A1

公开(公告)日：2024-08-01

申请号：US18372250

申请日：2023-09-25

Applicant: SHOFU INC.

Inventor： Toshio SHIGA ,  Tsukasa SASAKI ,  Ryoji TAKEI ,  Toshiyuki NAKATSUKA ,  Shunsuke MIYATA ,  Hiroyuki KOBAYASHI ,  Akiko MATSUMOTO

IPC: A61C5/62

CPC classification number: A61C5/62

Abstract: To provide a compule or syringe tip that can discharge viscous material in an intended shape by reducing deformation of the viscous material during discharge, can prevent viscous material from adhering to unintended portion by reducing an amount of viscous material that adheres to a nozzle tip, and can reduce dripping of viscous material to improve the anti-dripping property of the viscous material.
To provide a compule or syringe tip having a discharge structure for discharging viscous material from a discharge opening, wherein the discharge structure comprises a flow path that is formed around a virtual central line and allows the viscous material to move, and a tapered flow path formed between the flow path and the discharge opening, wherein a cross-sectional area of the tapered flow path gradually increases toward the discharge opening.