WO2005049119A1 - 注射針 - Google Patents
注射針 Download PDFInfo
- Publication number
- WO2005049119A1 WO2005049119A1 PCT/JP2004/017188 JP2004017188W WO2005049119A1 WO 2005049119 A1 WO2005049119 A1 WO 2005049119A1 JP 2004017188 W JP2004017188 W JP 2004017188W WO 2005049119 A1 WO2005049119 A1 WO 2005049119A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle
- cap
- cover
- needle body
- cover member
- Prior art date
Links
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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
Definitions
- the present invention relates to an injection needle used for injection of a drug solution, blood collection, dialysis, and the like.
- a cylindrical needle cover that is movable in the axial direction is attached to the needle body, and the needle cover is urged toward the needle tip by a spring.
- a bellows-shaped needle cover that can be extended and contracted in the axial direction of the needle body is provided, and the needle cover is extended.
- a device in which the needle body is covered by a needle for example, see Patent Document 2.
- Patent Document 1 Japanese Patent Application Laid-Open No. 3-139363
- Patent Document 2 JP-A-6-16295
- the present invention has been made in view of the above-described problems, and has as its object to prevent needle bending S and needle breakage, and to be easily manufactured at low cost. It is to provide an injection needle.
- the present invention provides a mounting member mounted on an injection liquid outlet of a syringe main body, a needle main body held by the mounting member, and a detachable and attachable / removable mounting member covering the needle main body.
- a distal end side of the needle main body is exposed by moving to the proximal end side, and a cover member is provided to cover the distal end side of the needle main body by moving to the distal end side of the needle main body.
- An engaging portion for moving the cover member together with the cap toward the distal end of the needle body is provided.
- the cover member when the cap is removed, the distal end side of the needle main body is covered by the cover member, so that the external force in the bending direction is directly applied to the needle main body when or after the cap is removed. It is possible to reliably prevent the needle from being bent or the needle from being broken.
- the cover member can be moved to the distal end side of the needle body by locking the cap and the cover member. Therefore, a spring for moving the cover member to the distal end side of the needle body can be used, or the cover can be used.
- the member can be easily manufactured at low cost without the need to make the member a complicated shape that can be extended and contracted.
- FIG. 1 is a perspective view of a syringe on which the injection needle of the present invention is mounted.
- FIG. 4 is a perspective view showing a mounting process of an injection needle.
- FIG. 5 is a side sectional view showing a mounting process of a syringe needle.
- FIG. 6 is a side sectional view showing a mounting process of the injection needle.
- FIG. 7 is a side cross-sectional view showing a puncturing operation on a human body.
- FIG. 8 is a perspective view showing a cap attaching process.
- the injection needle shown in FIGS. 1 to 8 has a hub 2 as a mounting member mounted on the syringe body 1, a needle body 3 held by the hub 2, and a needle movably in the axial direction of the needle body 3.
- a needle cover 4 is provided as one of the covers provided, and a cap 5 is detachably attached to the hub 2 so as to cover the needle body 3.
- the syringe body 1 has an injection liquid outlet la at one end, and the inside thereof is filled with an injection liquid A such as insulin.
- the injection liquid outlet la is closed by a rubber member lb that can penetrate the needle body 3, and a screw portion lc for mounting the hub 2 is formed on the outer peripheral surface of the injection liquid outlet la.
- the hub 2 is a molded product of a cylindrical synthetic resin having one end face closed, and an extension 2a extending in the axial direction is provided at the center of one end face.
- the extension 2a extends from one end surface of the hub 2 in a direction toward the needle tip so as to cover the needle body 3, and the needle body 3 is held by the extension 2a.
- a locking portion 2b that locks to the needle cover 4 is provided on the distal end side of the extension portion 2a, and the locking portion 2b is formed to expand radially outward.
- a plurality of ribs 2c extending in the axial direction are provided on the outer peripheral surface of the hub 2 at intervals in the circumferential direction, and the inner peripheral surface of the hub 2 can be screwed to the screw portion 1c of the syringe body 1.
- the threaded portion 2d (illustrated simplified) is formed.
- the needle body 3 is formed of a metal tube having a sharp distal end, and the distal end side and the proximal end side of the needle main body 3 are protruded outside from the extension 2a of the nose 2 respectively.
- the needle cover 4 is formed of a cylindrical synthetic resin molded product having both ends opened. 2a is movably engaged in the axial direction.
- a first locking portion 4a that locks to the cap 5 is provided at one end of the needle cover 4 in the axial direction (the front end of the needle body 3), and the first locking portion 4a protrudes outward in the radial direction. It is formed in a flange shape.
- the inner diameter of the needle cover 4 is larger than the outer diameter of the extension 2a, and the other end in the axial direction (the base end of the needle body 3) is engaged with the locking portion 2c of the extension 2a.
- a second locking portion 4b for stopping is provided, and the second locking portion 4b is formed so as to protrude radially inward.
- the needle cover 4 moves to the base end side of the needle main body 3 along the extension 2a to expose the distal end side of the needle main body 3, and moves to the distal end side of the needle main body 3 to move the needle main body 3 forward. To cover the tip side.
- the second locking portion 4b is axially locked to the locking portion 2b of the extension 2a, and the needle locking bar 4 moves in the needle tip direction of the needle cover 4. Movement is now regulated.
- the cap 5 is made of a synthetic resin molded product having one end opened, and a flange portion 5a is provided at one end opening edge.
- a plurality of ribs 5b extending in the axial direction are provided at one end of the inner peripheral surface of the cap 5 at an interval in the circumferential direction, and each rib 5b is circumferentially locked to the rib 2c of the hub 2. It is formed to be possible. Further, on the other end side of the inner peripheral surface of the cap 5, locking portions 5c which can be locked to the first locking portions 4a of the needle cover 4 are provided at four positions in the circumferential direction at equal intervals.
- the gap between the locking portions 5c that face each other in the radial direction of the cap 5 is formed to be slightly smaller than the outer diameter of the first locking portion 4a of the needle cover 4, and the cap 5 is moved in the axial direction.
- each locking portion 5c is elastically deformed in the radial direction so as to get over the first locking portion 4a of the needle cover 4.
- a plurality of ribs 5d extending in the axial direction are provided on the outer peripheral surface of the cap 5 at intervals in the circumferential direction.
- the injection needle having the above constitutional force is housed in a cap 5 with the hub 2, the needle body 3, and the needle cover 4 attached to each other as shown in Fig. 5 (a).
- the part is sealed by a cover (not shown).
- the first locking portion 4a of the needle cover 4 is located on the base end side of the needle body 3 with respect to each locking portion 5c of the cap 5.
- FIG. 5 (b). Attach hub 2 to injection solution outlet la of syringe body 1.
- the hub 2 is mounted on the syringe body 1 by rotating the cap 5 around the axis and screwing the screw portion 2d of the hub 2 into the screw portion lc of the syringe body 1. Be worn.
- the rib 5b of the cap 5 is circumferentially locked to the rib 2c of the hub 2 so that the cap 5 and the hub 2 rotate in a body, and each rib 5d on the outer peripheral surface of the cap 5 It keeps your fingertips from slipping.
- each locking portion 5c of the cap 5 is attached to the first locking portion 4a of the needle cover 4 by the needle body 3 Since the needle cover 4 is locked from the base end side, the needle cover 4 moves in the needle tip direction together with the cap 5, and the needle cover 4 covers the distal end side of the needle body 3.
- each locking portion 5c of the cap 5 rides over the first locking portion 4a of the needle cover 4 as shown in FIG. 5 is removed.
- the distal end side of the needle body 3 is covered with the needle cover 4, even if the cap 5 is accidentally brought into contact at the time of removal, the cap 5 does not come into direct contact with the needle body 3. No external force is applied in the bending direction. Further, since the needle body 3 is covered with the needle cover 4, the fingertip does not directly contact the needle body 3.
- the needle cover 4 moves toward the body B by contact with the body B.
- the needle body 3 moves relative to the extension 2a while being blocked, and the needle body 3 is inserted into the human body B.
- the medical solution A in the syringe body 1 can be discharged from the needle body 3 into the human body B.
- the cap 5 When the cap 5 is to be attached after use, the cap 5 is put on the needle body 3 side as shown in FIG. The needle cover 4 is locked to the portion 4a from the distal end side of the needle body 3, and the needle cover 4 moves together with the cap 5 toward the proximal end of the needle body 3 as shown in FIG. . Then, when a force in the proximal direction of the needle body 3 is further applied to the cap 5, as shown in FIG. 8 (c), each locking portion 5c of the cap 5 is directed outward in the radial direction of the cap 5. The cap 5 is attached by being elastically deformed to get over the first locking portion 4a of the needle cover 4.
- the hub 2 and the needle main body can be disengaged by rotating the cap 5 in the opposite direction when the cap is attached to release the screw engagement between the hub 2 and the syringe main body 1.
- 3 and needle cover 4 are removed with cap 5 accommodated.
- the first locking portion 4a of the needle cover 4 is located on the proximal end side of the needle body 3 with respect to each locking portion 5c of the cap 5. Therefore, the locking of the first locking portion 4a and each locking portion 5c prevents the hub 2, the needle body 3 and the needle force bar 4 from dropping off the cap 5.
- the needle cover 4 provided so as to be movable in the axial direction of the needle body 3 and the cap 5 covering the needle body 3 is removed from the hub 2
- the locking portion 5c provided on the cap 5 is locked to the first locking portion 4a of the needle cover 4 so that the needle cover 4 moves together with the cap 5 toward the distal end of the needle body 3, and the needle cover 4 moves the needle. Since the distal end side of the main body 3 is covered, it is possible to reliably prevent the needle from being bent or broken without external force in the bending direction being directly applied to the needle main body 3 when or after the cap 5 is removed.
- the needle cover 4 can be moved to the distal end of the needle body 3 by locking the cap 5 and the needle cover 4, a spring for moving the needle cover 4 to the distal end of the needle body 3 can be used.
- a spring for moving the needle cover 4 to the distal end of the needle body 3 can be used.
- the needle cover 4 is formed in a cylindrical shape and is movably engaged with the extension 2a provided on the hub 2 in the axial direction, the needle cover 4 can be securely connected to the needle body 3 with a simple structure. It can be moved in the axial direction, and processing during manufacturing can be performed very easily.
- the locking portion 5c of the cap 5 is formed so as to extend over the first locking portion 4a of the needle cover 4 by elastic deformation in the axial direction, the locking operation between the cap 5 and the needle cover 4 is performed.
- the unlocking operation can be easily performed, and the operability can be improved.
- the first locking portion 4 a of the needle cover 4 is formed in a flange shape so as to project in the radial direction of the needle cover 4, and the locking portion 5 c of the cap 5 is Since the protrusions are provided at a plurality of locations on the surface at intervals in the circumferential direction, the locking portions 5c of the cap 5 can be locked to the first locking portions 4a of the needle cover 4 at any position in the circumferential direction. The cap 5 and the needle cover 4 can be securely locked.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04818958A EP1690562A1 (en) | 2003-11-21 | 2004-11-18 | Syringe needle |
US10/595,957 US20090118678A1 (en) | 2003-11-21 | 2004-11-18 | Injection needle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-428312 | 2003-11-21 | ||
JP2003428312A JP2005152541A (ja) | 2003-11-21 | 2003-11-21 | 注射針 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005049119A1 true WO2005049119A1 (ja) | 2005-06-02 |
Family
ID=34616811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/017188 WO2005049119A1 (ja) | 2003-11-21 | 2004-11-18 | 注射針 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090118678A1 (ja) |
EP (1) | EP1690562A1 (ja) |
JP (1) | JP2005152541A (ja) |
WO (1) | WO2005049119A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140188046A1 (en) * | 2009-03-03 | 2014-07-03 | Becton, Dickinson And Company | Pen Needle Assembly For Delivering Drug Solution |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2913200B1 (fr) | 2007-03-02 | 2009-12-11 | Becton Dickinson France | Dispositif de protection d'aiguille |
FR2913202A1 (fr) * | 2007-03-02 | 2008-09-05 | Becton Dickinson France Soc Pa | Protection pour couvrir l'extremite d'un dispositif d'administration ou d'un sous-ensemble,sous-ensemble et dispositif d'administration |
AU2014206160B2 (en) * | 2007-03-02 | 2015-11-26 | Becton Dickinson France | Protection device for a needle |
FR2913201B1 (fr) * | 2007-03-02 | 2009-11-20 | Becton Dickinson France | Protection pour couvrir l'extremite d'un dispositif d'administration ou d'un sous-ensemble,sous-ensemble et dispositif d'administration |
CA2639320C (en) * | 2007-09-07 | 2016-10-25 | Becton, Dickinson And Company | Pen-needle assembly for preventing under-torquing and over-torquing of pen-needle |
JP5656972B2 (ja) * | 2009-03-31 | 2015-01-21 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | ペンキャップ |
GB0906640D0 (en) * | 2009-04-17 | 2009-06-03 | Owen Mumford Ltd | A needle cap assembly |
JP2012529322A (ja) * | 2009-06-12 | 2012-11-22 | ノボ・ノルデイスク・エー/エス | 針アセンブリのためのキャップ機能を有する薬剤送達装置 |
GB2487188A (en) | 2011-01-07 | 2012-07-18 | Owen Mumford Ltd | Blood sampling device with trigger locking arrangement and method of assembly |
CN102283655B (zh) * | 2011-07-20 | 2013-03-06 | 张忠献 | 双保险一次性采血针 |
WO2013047042A1 (ja) * | 2011-09-26 | 2013-04-04 | テルモ株式会社 | シリンジ |
JP5798872B2 (ja) * | 2011-10-03 | 2015-10-21 | 大成化工株式会社 | キャップ、キャップ付きバレル、及びプレフィルドシリンジ |
CN103190920A (zh) * | 2012-01-10 | 2013-07-10 | 杨莲英 | 一次性双保险采血针 |
CN102648994A (zh) * | 2012-04-28 | 2012-08-29 | 上海金塔医用器材有限公司 | 一次性使用回缩安全注射针 |
CN102648849A (zh) * | 2012-04-28 | 2012-08-29 | 上海金塔医用器材有限公司 | 一次性使用回缩安全采血针 |
EP2662104A1 (en) | 2012-05-07 | 2013-11-13 | Sanofi-Aventis Deutschland GmbH | Detent mechanism for a medicament delivery device |
CN102697512A (zh) * | 2012-06-04 | 2012-10-03 | 上海金塔医用器材有限公司 | 一次性使用回缩安全采血针 |
EP2740505A1 (en) * | 2012-12-05 | 2014-06-11 | Sanofi-Aventis Deutschland GmbH | Needle assembly replacement device |
CN104602741B (zh) * | 2013-03-26 | 2018-10-26 | 泰尔茂株式会社 | 弹性帽以及具备所述弹性帽的注射器用组装体 |
GB2516899A (en) * | 2013-08-05 | 2015-02-11 | Mohamed Salim Dean | Safety hypodermic syringe |
CN103976747B (zh) * | 2014-04-11 | 2015-12-09 | 上海金塔医用器材有限公司 | 安全采血针 |
CN104138264B (zh) * | 2014-07-28 | 2016-08-24 | 上海金塔医用器材有限公司 | 安全采血针 |
DE102014111944A1 (de) * | 2014-08-21 | 2016-03-10 | Alfred Von Schuckmann | Spritzenkappe |
TW201726197A (zh) | 2015-11-27 | 2017-08-01 | 賽諾菲阿凡提斯德意志有限公司 | 注射裝置(四) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180772A (ja) * | 1990-11-15 | 1992-06-26 | Masataka Saito | 医療用針 |
JP2001340457A (ja) * | 2000-06-06 | 2001-12-11 | Hamiiru Cp:Kk | 交換用注射針 |
JP2002191695A (ja) * | 2000-10-20 | 2002-07-09 | Mitsubishi Pencil Co Ltd | 針先カバー部材、針先カバー部材付き注射針の組立方法、針ガード部材付き注射針および針ガード部材付き注射器 |
US6478780B1 (en) * | 1999-12-16 | 2002-11-12 | Jack W. Shields | Sharps shield for dental and medical needs |
JP2003070912A (ja) * | 2001-09-04 | 2003-03-11 | Mitsubishi Pencil Co Ltd | 針先カバー部材 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6776776B2 (en) * | 1999-10-14 | 2004-08-17 | Becton, Dickinson And Company | Prefillable intradermal delivery device |
US6986760B2 (en) * | 2000-08-02 | 2006-01-17 | Becton, Dickinson And Company | Pen needle and safety shield system |
-
2003
- 2003-11-21 JP JP2003428312A patent/JP2005152541A/ja not_active Ceased
-
2004
- 2004-11-18 WO PCT/JP2004/017188 patent/WO2005049119A1/ja active Application Filing
- 2004-11-18 US US10/595,957 patent/US20090118678A1/en not_active Abandoned
- 2004-11-18 EP EP04818958A patent/EP1690562A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180772A (ja) * | 1990-11-15 | 1992-06-26 | Masataka Saito | 医療用針 |
US6478780B1 (en) * | 1999-12-16 | 2002-11-12 | Jack W. Shields | Sharps shield for dental and medical needs |
JP2001340457A (ja) * | 2000-06-06 | 2001-12-11 | Hamiiru Cp:Kk | 交換用注射針 |
JP2002191695A (ja) * | 2000-10-20 | 2002-07-09 | Mitsubishi Pencil Co Ltd | 針先カバー部材、針先カバー部材付き注射針の組立方法、針ガード部材付き注射針および針ガード部材付き注射器 |
JP2003070912A (ja) * | 2001-09-04 | 2003-03-11 | Mitsubishi Pencil Co Ltd | 針先カバー部材 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140188046A1 (en) * | 2009-03-03 | 2014-07-03 | Becton, Dickinson And Company | Pen Needle Assembly For Delivering Drug Solution |
US10441730B2 (en) * | 2009-03-03 | 2019-10-15 | Becton, Dickinson And Company | Pen needle assembly for delivering drug solution |
Also Published As
Publication number | Publication date |
---|---|
JP2005152541A (ja) | 2005-06-16 |
US20090118678A1 (en) | 2009-05-07 |
EP1690562A1 (en) | 2006-08-16 |
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