WO2013136887A1 - Aiguille à ailettes - Google Patents

Aiguille à ailettes Download PDF

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Publication number
WO2013136887A1
WO2013136887A1 PCT/JP2013/053085 JP2013053085W WO2013136887A1 WO 2013136887 A1 WO2013136887 A1 WO 2013136887A1 JP 2013053085 W JP2013053085 W JP 2013053085W WO 2013136887 A1 WO2013136887 A1 WO 2013136887A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
wings
bent
hub
winged needle
Prior art date
Application number
PCT/JP2013/053085
Other languages
English (en)
Japanese (ja)
Inventor
枝莉 野口
Original Assignee
テルモ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by テルモ株式会社 filed Critical テルモ株式会社
Priority to JP2014504738A priority Critical patent/JP6109147B2/ja
Publication of WO2013136887A1 publication Critical patent/WO2013136887A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1586—Holding accessories for holding infusion needles on the body

Definitions

  • the present invention relates to a winged needle.
  • a winged needle As a medical needle, a winged needle is widely used in which a pair of flexible wings protrude from a hub at the proximal end of a needle body (see, for example, Patent Document 1).
  • the pair of wings When the needle body is punctured into the living body, the pair of wings are picked up with fingers and closed, and function as a gripping portion.
  • the winged needle When the winged needle is placed in a living body, the winged needle can be fixed by sticking the opened wing to the skin with an adhesive tape or the like.
  • the pair of wings are picked up with fingers and closed to perform this operation.
  • An object of the present invention is to provide a winged needle that reduces the risk of blood infection when the needle body is removed from the living body.
  • a needle tube having a sharp needle tip at the tip;
  • a hub provided on the proximal end side of the needle tube,
  • a pair of wings provided on the hub and projecting in opposite directions through the hub;
  • Each of the wings has one end on the hub side, the other end opposite to the one end, and at least one bent part capable of bending the wing,
  • the winged needle is configured so that the one end and the other end are close to each other when the wing is operated to be bent by the bent portion.
  • each of the wings further includes a protruding piece capable of assisting a bending operation of the wing at the bent portion.
  • each wing has a bent shape bent in the bent portion in a natural state where no external force is applied.
  • each of the wings has a maintaining member for maintaining the bent shape.
  • the hub has a cylindrical shape, and each of the wings can be rotated around the central axis of the hub.
  • the maintenance member is formed by a rib that protrudes from the wing and prevents the one end and the other end from separating.
  • the maintenance member is made of a flexible material.
  • An operation method for operating the winged needle wherein the wing is operated so that the one end and the other end are close to each other while the needle tube is punctured into a subject.
  • An operation method comprising bending at a bent portion and removing the needle tube from the subject in the bent state.
  • each wing can be bent at the bent portion, and therefore, in the bent state, it is prevented from touching the back surface of the wing to which blood may adhere.
  • the needle body can be removed from the living body while reducing the risk of blood infection.
  • FIG. 1 is a perspective view showing a first embodiment of a winged needle of the present invention.
  • FIG. 2 is a perspective view showing a first embodiment of the winged needle of the present invention.
  • FIG. 3 is a perspective view showing a first embodiment of the winged needle of the present invention.
  • FIG. 4 is a view (front view) of the winged needle shown in FIG. 1 viewed from the tip side.
  • FIG. 5 is a perspective view showing a second embodiment of the winged needle of the present invention.
  • FIG. 6 is a perspective view showing a second embodiment of the winged needle of the present invention.
  • FIG. 7 is a perspective view showing a second embodiment of the winged needle of the present invention.
  • FIGS. 1 to 3 are perspective views showing a first embodiment of the winged needle of the present invention, respectively.
  • 1 shows a natural state of the winged needle
  • FIG. 2 shows a state in which the winged needle is punctured and fixed to a living body
  • FIG. 3 shows a state in which the wing of the winged needle is closed.
  • FIG. 4 is a view (front view) of the winged needle shown in FIG. 1 viewed from the tip side.
  • the lower left side in FIGS. 1 to 3 is referred to as “tip”, and the upper right side is referred to as “base end”.
  • a winged needle (indwelling needle) 1 includes a needle body 2, a hub 3 provided on the proximal end side of the needle body 2, a pair of wings 4 a and 4 b, and a hub 3. And a flexible tube 5 connected to the base end side.
  • a cylindrical hub 3 is liquid-tightly fixed to the outer periphery of the proximal end portion of the needle body 2.
  • a hollow portion serving as a liquid flow path is formed inside the hub 3.
  • the wings 4a and 4b may be formed integrally with the hub 3 so that one end of the wings 4a and 4b abuts on the hub 3, that is, directly protrudes laterally from the hub 3.
  • the wings 4a and 4b have flexibility and are configured to be openable and closable by bending and bending as a whole. These wings 4a and 4b have bent portions 41a and 41b between one end (fixed end) on the hub 3 (connecting portion 44) side and the other end (free end) opposite to the one end. Have. As shown in FIG. 1, the wings 4 a and 4 b are bent in a natural state where no external force is applied so that the bent portions 41 a and 41 b are bent so that the portions protrude upward.
  • the wings 4a and 4b have first portions that are thicker than the second portions 43a and 43b on the one end side than the bent portions 41a and 41b, and the second portions 43a and 43b on the other end side. Part 42a, 42b. Further, the length a of the first portions 42a and 42b is equal to or longer than the length b of the second portions 43a and 43b. With such a configuration, the opening / closing operation of the blades 4a and 4b can be facilitated.
  • the first portions 42a and 42b of the wings 4a and 4b are picked with fingers, the one end portion and the other end portion approach each other, and the second portion A puncture operation or an extraction operation is performed in a closed state (see FIG. 3) so that the upper surfaces (front surfaces) of the portions 43a and 43b face each other.
  • the wings 4a and 4b are opened (see FIG. 2), and the wings 4a and 4b are fixed to the skin with an adhesive tape or the like.
  • the length of the first portions 42a and 42b (the length in the direction substantially perpendicular to the central axis of the needle body 2, hereinafter the same) a is preferably about 10 to 20 mm, and preferably about 12 to 15 mm. More preferred.
  • the length b of the second portions 43a and 43b is preferably about 5 to 20 mm, and more preferably about 7.5 to 15 mm.
  • the length c of the connecting portion 44 is appropriately set according to the size of the hub 3, and is usually preferably about 3 to 15 mm, more preferably about 5 to 10 mm.
  • the thickness T of the first portions 42a and 42b is preferably about 0.5 to 5 mm, and more preferably about 1 to 3.5 mm.
  • the thickness t of the second portions 43a and 43b is preferably about 0.1 to 3 mm, and more preferably about 0.3 to 2 mm.
  • a flexible tube 5 serving as a flow path for bodily fluids or infusions is fluid-tightly connected to the proximal end side of the hub 3. Is in communication with the lumen of the needle body 2.
  • FIGS. 5 to 7 are perspective views showing a second embodiment of the winged needle of the present invention, respectively.
  • 5 shows a natural state of the winged needle
  • FIG. 6 shows a state where the winged needle is punctured and fixed to the living body
  • FIG. 7 shows a state where the wing of the winged needle is closed.
  • the lower left side in FIGS. 5 to 7 is referred to as a “tip”
  • the upper right side is referred to as a “base end”.
  • the wings 4a and 4b are further provided in the bent portions 41a and 41b, and the first portions 42a and 42b and the second portions 43a, It has protrusions 45a and 45b formed integrally with 43b.
  • These protruding pieces 45a and 45b stand up (stand up) toward the upper side in FIG. 5 in the natural state shown in FIG. As shown in FIG. 6, when the winged needle 1 is placed in a living body, the projecting pieces 45a and 45b are tilted.
  • the wings 4a and 4b can be bent more easily and reliably. That is, the protruding pieces 45a and 45b have a function of assisting the bending operation of the wings 4a and 4b in the bent portions 41a and 41b.
  • FIG. 8 is a perspective view (natural state) showing a third embodiment of the winged needle of the present invention
  • FIG. 9 is a view (front view) of the winged needle shown in FIG.
  • the lower left side in FIG. 8 is referred to as “tip”, and the upper right side is referred to as “base end”.
  • the bent shape of the blades 4a and 4b in the natural state can be more reliably maintained, and the projecting pieces 45a and 45b can be in an upright state. . For this reason, it becomes easier to grip the protruding pieces 45a and 45b.
  • the constituent material of the maintenance members 46a and 46b among the materials exemplified as the constituent material of the hub 3 and the like in the first embodiment, a material having flexibility is particularly preferable. Thereby, at the time of bending operation of wing
  • the number of ribs constituting the projecting pieces 45a and 45b is not limited to one and may be plural.
  • FIG. 10 is an enlarged cross-sectional view showing a bent portion in the fourth embodiment of the winged needle of the present invention.
  • the winged needle 1 of the fourth embodiment is the same as the first embodiment except that the configuration of the bent portion is different.
  • the wings 4a and 4b are formed such that the bent portions 41a and 41b are thinner than the thickness of the portions other than the bent portions 41a and 41b. It consists of thin parts.
  • the bent portions 41a and 41b have grooves formed by, for example, laser processing, cutting, or a method of forming at the same time when the blades 4a and 4b are formed. Thereby, the bending operation in the wing
  • the winged needle may be further provided with a protector that can be moved or rotated in the longitudinal direction relative to the winged needle and can store the used needle body.
  • each blade is provided in a fixed manner with respect to the hub in each of the embodiments described above.
  • the present invention is not limited to this.
  • the blade may be provided so as to be rotatable about the central axis of the hub.
  • the structure which has a some bending part may be sufficient as each wing
  • the bent portion may be any one as long as each wing of the pair of wings can be easily bent at the respective bent portion when the two wings are pinched with fingers, and the thickness is thinner than the other portions of the wing.
  • a groove shape, a material softer than other parts and easy to bend, or a shape that is easy to be bent and shaped in advance may be used.
  • the winged needle of the present invention includes a needle tube having a sharp needle tip at a distal end, a hub provided on a proximal end side of the needle tube, and provided on the hub, and projecting in opposite directions through the hub.
  • Each of the wings has one end on the hub side, the other end opposite to the one end, and at least one bent portion capable of bending the wing. The one end and the other end are close to each other when the wing is operated to be bent by the bent portion. Therefore, the risk of blood infection is reduced when the needle body is removed from the living body. Therefore, the winged needle of the present invention has industrial applicability.

Abstract

La présente invention concerne une aiguille à ailettes (1)pourvue d'un corps d'aiguille cylindrique (2) terminé par une pointe d'aiguille pointue (21), un raccord (3) placé sur le côté de base du corps d'aiguille (2), et une paire d'ailes (4a, 4b) prévues sur le raccord et faisant saillie dans des directions opposées l'une de l'autre à travers le raccord (3). Chacune des ailes (4a, 4b) présente une extrémité dirigée vers le raccord (3) et l'autre extrémité en regard de la première extrémité, une partie de pliage (41a, 41b) permettant aux ailes (4a, 4b) de se plier. Les ailes (4a, 4b) sont conçues de manière à ce que leurs deux extrémités se rapprochent l'une de l'autre lorsque les ailes (4a, 4b) sont actionnées pour se plier au niveau des parties de pliage (41a, 41b).
PCT/JP2013/053085 2012-03-15 2013-02-08 Aiguille à ailettes WO2013136887A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014504738A JP6109147B2 (ja) 2012-03-15 2013-02-08 翼状針

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-058455 2012-03-15
JP2012058455 2012-03-15

Publications (1)

Publication Number Publication Date
WO2013136887A1 true WO2013136887A1 (fr) 2013-09-19

Family

ID=49160806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/053085 WO2013136887A1 (fr) 2012-03-15 2013-02-08 Aiguille à ailettes

Country Status (2)

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JP (1) JP6109147B2 (fr)
WO (1) WO2013136887A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138452U (fr) * 1988-03-17 1989-09-21
JPH08257138A (ja) * 1995-03-16 1996-10-08 Becton Dickinson & Co 翼付きｉｖカテーテル組立体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589361A (en) * 1968-06-10 1971-06-29 Abbott Lab Intravenous catheter unit with flexible wing support and inserter means
CA2172720C (fr) * 1993-09-27 2005-02-22 Maxwell Edmund Whisson Ensemble de perfusion
IT1318414B1 (it) * 2000-03-21 2003-08-25 Zambon Spa Custodia per alloggiare un dispositivo dotato di ago per iniezionedopo l'uso.
US7150725B2 (en) * 2003-12-17 2006-12-19 Becton Dickinson And Company Passive activated safety blood collection set
JP2010162172A (ja) * 2009-01-15 2010-07-29 Kawasumi Lab Inc 医療用針

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138452U (fr) * 1988-03-17 1989-09-21
JPH08257138A (ja) * 1995-03-16 1996-10-08 Becton Dickinson & Co 翼付きｉｖカテーテル組立体

Also Published As

Publication number Publication date
JPWO2013136887A1 (ja) 2015-08-03
JP6109147B2 (ja) 2017-04-05

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