US20040204688A1 - Safety syringe - Google Patents

Safety syringe Download PDF

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Publication number
US20040204688A1
US20040204688A1 US10409054 US40905403A US20040204688A1 US 20040204688 A1 US20040204688 A1 US 20040204688A1 US 10409054 US10409054 US 10409054 US 40905403 A US40905403 A US 40905403A US 20040204688 A1 US20040204688 A1 US 20040204688A1
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Prior art keywords
end
needle
tube
barrel
hollow
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
US10409054
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US6808512B1 (en )
Inventor
Hsiu-Chih Lin
Jih-Hsiung Yang
Original Assignee
Hsiu-Chih Lin
Jih-Hsiung Yang
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3232Semi-automatic needle retraction, i.e. in which the triggering of the needle retraction requires a deliberate action by the user, e.g. manual release of spring-biased retraction means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M2005/3206Needle or needle hub disconnecting devices forming part of or being attached to the hub or syringe body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3227Constructional features thereof, e.g. to improve manipulation or functioning the needle being retracted laterally outside the syringe barrel, e.g. with separate guideway
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3228Constructional features thereof, e.g. to improve manipulation or functioning the needle being retracted by a member protruding laterally through a slot in the barrel, e.g. double-ended needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
    • A61M5/3272Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position having projections following labyrinth paths

Abstract

A safety syringe has a hollow barrel, a plunger, a tube, a needle hub, a spring and a plug. The hollow barrel has an outside surface, a proximal open end and a distal closed end. The plunger is mounted slidably inside the hollow barrel. The tube has a proximal open end and a distal open end and is attached longitudinally to the outside surface of the hollow barrel. The needle hub and the spring are mounted inside the tube, and the needle can extend out of the distal open end of the tube. A first through hole defined in the hollow barrel and a second through hole is defined in the tube align with each other. The needle is extended out from the distal end of the tube to take a blood sample. The used needle is retracted into the tube after use to keep people from getting injured or infected.

Description

    BACKGROUND OF THE INVENTION
  • [0001]
    1. Field of the Invention
  • [0002]
    The present invention relates to a syringe, and more particularly to a safety syringe that can safely hold a used needle and prevent the syringe from being used more than once.
  • [0003]
    2. Description of Related Art
  • [0004]
    A conventional syringe has a hollow barrel, a plunger and a needle hub. The needle hubs of conventional syringes are easily inclined during use so the needle hubs are difficult to retract into the barrel. Due to contagious diseases, the needles of syringes and even the hollow barrels and plungers, should not be used again and should be discarded immediately after use. Also, to keep nurses, doctors or workers who deal with discarded syringes from getting injured or infected by used needles, a safety syringe is needed. The conventional safety syringe often has a complex structure, so to provide a simple and effective safe design for the needles of syringes is still needed.
  • [0005]
    To overcome the shortcomings of conventional syringes, the present invention provides a safety syringe to mitigate or obviate the aforementioned problem.
  • SUMMARY OF THE INVENTION
  • [0006]
    The primary objective of the present invention is to provide a safety syringe that has a simpler structure than the conventional safety syringe and improves safety. The safety syringe in accordance with the present invention comprises a hollow barrel, a plunger, a tube and a needle hub.
  • [0007]
    The hollow barrel has a proximal open end, a distal closed end, an outside surface, a dovetail keyway and a first through hole. The plunger is slidably mounted inside the hollow barrel. The tube has a proximal open end and a distal open end and is mounted on the hollow barrel. The needle hub and the spring are mounted inside the tube, and the needle selectively extends from the proximal open end of the tube. The first through hole is defined in the hollow barrel through the dovetail keyway, and a second through hole is defined in the tube. The first through hole faces the second through hole.
  • [0008]
    When using the safety syringe, the needle hub extends out of the tube to draw a blood sample. When finishing taking a blood sample, the used needle hub is retracted inside the tube to keep the used needle from injuring or infecting a person.
  • [0009]
    Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0010]
    [0010]FIG. 1 is an exploded perspective view of a safety syringe in accordance with the present invention;
  • [0011]
    [0011]FIG. 2 is a side plan view in partial section of the safety syringe in FIG. 1 with the plunger pressed into the hollow barrel and a covered needle in the tube;
  • [0012]
    [0012]FIG. 3 is an operational side plan view in partial section of the safety syringe in FIG. 1 with the plunger partially retracted from the hollow barrel and the needle extending from the tube; and
  • [0013]
    [0013]FIG. 4 is an operational side plan view in partial section of the safety syringe in FIG. 1 with the plunger pressed into the barrel and a used needle retracted into the tube.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • [0014]
    With reference to FIGS. 1 and 2, a safe syringe in accordance with the present invention has a hollow barrel (10), a plunger (20), a tube (30) and a needle hub (40).
  • [0015]
    The hollow barrel (10) is cylindrical and has a distal closed end (11), a proximal open end (12), a sidewall (not numbered), an outside surface (not numbered), an annular flange (not numbered), a dovetail keyway (13) and a first through hole (14). The annular flange is defined radially around and extends out from the proximal open end (12). The dovetail keyway (13) is formed longitudinally on the outside surface of the hollow barrel (10). The first through hole (14) is defined through the sidewall in the dovetail keyway (13) near the distal closed end (11).
  • [0016]
    The plunger (20) has a proximal end (not numbered), a distal end (not numbered) and a seal (not numbered) and is slidably mounted inside the hollow barrel (10). The seal is attached to the distal end of the plunger (20).
  • [0017]
    The tube (30) is connected to the hollow barrel (10) and has an outside surface (not numbered), a dovetail key (31), a lip (not numbered), a distal open end (32), a proximal open end (33), a guide slot (34), a sidewall (not numbered) and a second through hole (37). The dovetail key (31) is formed longitudinally on and extends from the outside surface and engages the dovetail keyway (13) on the hollow barrel (10). The lip is formed at the distal open end (32) and protrudes radially inward so that the distal open end (32) is smaller than the proximal open end (33). The guide slot (34) has a proximal end (not numbered), a distal end (not numbered), a retracted locking slot (35) and an extended locking slot (36) and is defined longitudinally through the sidewall of the tube (30) diametrically opposite from the dovetail key (31). The proximal end of the guide slot (34) can be open and is at the proximal open end (33) of the tube (30). The retracted locking slot (35) is formed near the proximal end of and perpendicular to the guide slot (34). The extended locking slot (36) is formed at the distal end of and perpendicular to the guide slot (34). The second through hole (37) is defined through sidewall of the tube (30) and the dovetail key (31) and faces and aligns with the first through hole (14) defined through the hollow barrel (10). The tube (30) also can connect to the hollow barrel (10) in other ways such as integrally formed together with the hollow barrel (10).
  • [0018]
    The safety syringe in accordance with the present invention further comprises a spring (50) and a plug (60). The spring (50) has a distal end (not numbered) and a proximal end (not numbered) and is inserted mounted into the tube (30). The distal end of the spring (50) abuts the lip in the distal open end (32) of the tube (30).
  • [0019]
    The needle hub (40) is slidably mounted inside the tube (30) and has a needle (41), a stopper (42), a guide stub (43), a fluid channel (44) and a tapered hole (45). The stopper (42) is cylindrical and has a top surface (not numbered), a bottom surface (not numbered) and a cylindrical surface (not numbered). The bottom surface abuts the distal open end (32). The needle (41) has a longitudinal fluid passage (not shown), and can pass through the spring (50) and is mounted in the bottom surface of the stopper (42). The fluid channel (44) has a first end (not numbered) and a second end (not numbered). The first end is defined through the bottom surface of the stopper (42), and the second end is defined through the cylindrical surface of the stopper (42). The first end of the fluid channel (44) is connected to the needle (41), and the second end of the fluid channel (44) is connecting to the tapered hole (45) that is formed in the cylindrical surface. The guide stub (43) is attached to the cylindrical surface of the stopper (42) so the tapered hole (45) aligns with the second through hole (37) when the guide stub (43) is fully seated in the extended locking slot (36).
  • [0020]
    With further reference to FIG. 3, the needle hub (40) may optionally include a needle cap (46). The needle cap (46) is detachably attached to the bottom surface of the stopper (42) to cover the needle (41) to protect the needle (41) from contaminants and to keep the needle (41) injuring a person when the needle (41) is being extended from the tube (30). The needle cap (46) is removed from the needle (41) and discarded to draw a blood sample or medicine into the hollow barrel (10).
  • [0021]
    The plug (60) is cylindrical and is mounted securely inside the distal open end (33) of the tube (30) to hold the needle hub (40) inside the tube (30).
  • [0022]
    With reference to FIGS. 2 and 3, when taking blood or putting medicine into patients' body, the user moves the stopper (42) from the retracted locking slot (35) to the guide slot (34) by means of holding the guide stub (43). The stopper (42) is slid toward the distal end of the guide slot (34) and is moved into the extended locking slot (36) to hold the needle (41) outside the distal open end (32) of the tube (30) and to align the tapered hole (45) with the second through hole (37) in the tube (30). The spring (50) is compressed between the lip at the proximal open (32) and the bottom surface of the needle hub (40). The plunger (30) is pulled toward the proximal end of the hollow barrel (10) so blood sample or medicine can be drawn through the needle (41), the fluid channel (44), the second through hole (37) and the first through hole (14) into the hollow barrel (10).
  • [0023]
    With reference to FIGS. 3 and 4, used syringes should be discarded after use. The guide stub (43) is released from the extended locking slot (36), and the spring (50) pushes the guide stub (43) toward the proximal end of the guide slot (34). The spring (50) also holds the needle hub (40) and the needle (41) in the tube (30). The needle cap (46) can be inserted through the distal open end (32) of the tube (30) to cover the used needle (41) to further protect people who deal with the used syringes.
  • [0024]
    Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (5)

  1. 1. A safety syringe comprising:
    a hollow barrel having a distal closed end; a proximal open end; a sidewall; an outside surface; a first through hole defined through the sidewall; and, a dovetail keyway defined longitudinally on the outside surface, the first through hole being defined through the dovetail keyway;
    a plunger slidably mounted inside the hollow barrel;
    a tube connected to the hollow barrel being cylindrical and having a proximal open end; a distal open end; a sidewall; a lip defined inside the distal open end; a guide slot defined longitudinally through the tube from the proximal open end toward the distal open end and having a proximal end and a distal end; a retracted locking slot defined through the tube perpendicular to the guide slot and communicating with the guide slot near the proximal end of the guide slot; an extended locking slot defined through the tube perpendicular to the guide slot and communicating with the distal end of the guide slot; and a second through hole defined through the sidewall; the tube including a dovetail key engaged into the dovetail keyway; the second through hole being defined through the dovetail key aligning with the first through hole; and,
    a needle hub slidably mounted inside the tube and having a stopper having a top surface, a bottom surface and a cylindrical surface;
    a needle with a longitudinal fluid passage and mounted in the bottom surface of the stopper;
    a fluid channel defined through the stopper and having a first end defined through the bottom surface of the stopper and connected to the needle; and a second end;
    a guide stub attached to the cylindrical surface of the stopper and moveably received in the guide slot in the tube; and
    a tapered hole formed in the cylindrical surface and communicating with the second end of the fluid channel so the tapered hole aligns with the second through hole when the guide stub the guide stub is fully seated in the extended locking slot.
  2. 2. The safety syringe as claimed in claim 1, wherein the hollow barrel and the tube are integrally formed together.
  3. 3. (Cancelled).
  4. 4. The safety syringe as claimed in claim 1 further comprising a spring inserted into the tube and the needle is inserted through the spring.
  5. 5. The safety syringe as claimed in claim 1 further comprising a plug inside the proximal open end of the tube.
US10409054 2003-04-09 2003-04-09 Safety syringe Expired - Fee Related US6808512B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10409054 US6808512B1 (en) 2003-04-09 2003-04-09 Safety syringe
DE2003205842 DE20305842U1 (en) 2003-04-09 2003-04-10 syringe
GB0309175A GB2400801B (en) 2003-04-09 2003-04-23 Safety syringe
FR0305970A FR2855058A3 (en) 2003-04-09 2003-05-19 Syringe comprises a needle sleeve which is arranged parallel to the syringe body, and accommodates a compression spring and a needle unit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10409054 US6808512B1 (en) 2003-04-09 2003-04-09 Safety syringe
DE2003205842 DE20305842U1 (en) 2003-04-09 2003-04-10 syringe
GB0309175A GB2400801B (en) 2003-04-09 2003-04-23 Safety syringe
FR0305970A FR2855058A3 (en) 2003-04-09 2003-05-19 Syringe comprises a needle sleeve which is arranged parallel to the syringe body, and accommodates a compression spring and a needle unit

Publications (2)

Publication Number Publication Date
US20040204688A1 true true US20040204688A1 (en) 2004-10-14
US6808512B1 US6808512B1 (en) 2004-10-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10409054 Expired - Fee Related US6808512B1 (en) 2003-04-09 2003-04-09 Safety syringe

Country Status (4)

Country Link
US (1) US6808512B1 (en)
DE (1) DE20305842U1 (en)
FR (1) FR2855058A3 (en)
GB (1) GB2400801B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7856751B1 (en) * 2007-01-23 2010-12-28 Alien Products, Incorporated Dual purpose fishing tool
EP2285437A1 (en) * 2008-06-10 2011-02-23 Retractable Technologies, Inc. Fluid flow control device with retractable cannula
WO2012012601A1 (en) * 2010-07-22 2012-01-26 Becton, Dickinson And Company Dual chamber syringe with retractable needle
US20120078225A1 (en) * 2010-07-22 2012-03-29 Becton, Dickinson And Company Dual Chamber Syringe With Retractable Needle
WO2013083979A1 (en) * 2011-12-06 2013-06-13 C-Major Ltd. A sharps retraction device
US8556855B2 (en) 2010-07-22 2013-10-15 Becton, Dickinson And Company Dual chamber syringe with retractable needle
WO2014143221A1 (en) * 2013-03-15 2014-09-18 Retractable Technologies, Inc. Frontal attachment device for syringe with pinch-activated retraction
CN104958811A (en) * 2015-06-26 2015-10-07 张依群 Novel syringe
US9302055B2 (en) 2012-12-14 2016-04-05 Retractable Technologies, Inc. Frontal attachment device for syringe with rotationally activated retractable needle
US9308353B2 (en) 2010-07-29 2016-04-12 Retractable Technologies, Inc. Needle retraction apparatus
US9814841B2 (en) 2008-06-10 2017-11-14 Retractable Technologies, Inc. Medical device with sliding frontal attachment and retractable needle

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CA2498722A1 (en) * 2002-09-12 2004-03-25 Children's Hospital Medical Center Method and device for painless injection of medication
WO2005079440A3 (en) * 2004-02-17 2005-11-17 Childrens Hosp Medical Center Improved injection devicew for administering a vaccine
DE102005061637A1 (en) * 2005-12-22 2007-07-05 Tecpharma Licensing Ag Needle carrier ejection device for removing needle carrier from injection apparatus, has collection element for collecting needle carrier
US9320469B2 (en) 2012-12-14 2016-04-26 Retractable Technologies, Inc. Retractable needle for blood gas sampling
US8721599B2 (en) * 2010-07-22 2014-05-13 Becton, Dickinson And Company Dual chamber passive retraction needle syringe

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US4941883A (en) * 1987-04-24 1990-07-17 Aldo Venturini Disposable safety syringe
US6162197A (en) * 1998-12-22 2000-12-19 Mohammad; Owais Retractable needle assembly and method of making the same
US6468250B2 (en) * 2000-12-26 2002-10-22 Kuo-Chen Yang Dual-chamber safety hypodermic syringe

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US4941883A (en) * 1987-04-24 1990-07-17 Aldo Venturini Disposable safety syringe
US6162197A (en) * 1998-12-22 2000-12-19 Mohammad; Owais Retractable needle assembly and method of making the same
US6468250B2 (en) * 2000-12-26 2002-10-22 Kuo-Chen Yang Dual-chamber safety hypodermic syringe

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7856751B1 (en) * 2007-01-23 2010-12-28 Alien Products, Incorporated Dual purpose fishing tool
US9694139B2 (en) 2008-06-10 2017-07-04 Retractable Technologies, Inc. Fluid flow control device with retractable cannula
EP2285437A1 (en) * 2008-06-10 2011-02-23 Retractable Technologies, Inc. Fluid flow control device with retractable cannula
US9814841B2 (en) 2008-06-10 2017-11-14 Retractable Technologies, Inc. Medical device with sliding frontal attachment and retractable needle
EP2285437A4 (en) * 2008-06-10 2015-01-07 Retractable Technologies Inc Fluid flow control device with retractable cannula
US9931475B2 (en) 2008-06-10 2018-04-03 Retractable Technologies, Inc. Frontal attachment device for syringe with pinch-activated needle retraction
US9440033B2 (en) 2008-06-10 2016-09-13 Retractable Technologies, Inc. Fluid flow control device with retractable cannula
US8556854B2 (en) 2010-07-22 2013-10-15 Becton, Dickinson And Company Dual chamber syringe with retractable needle
US8556855B2 (en) 2010-07-22 2013-10-15 Becton, Dickinson And Company Dual chamber syringe with retractable needle
CN103079613A (en) * 2010-07-22 2013-05-01 贝克顿·迪金森公司 Dual chamber syringe with retractable needle
US9550030B2 (en) * 2010-07-22 2017-01-24 Becton, Dickinson And Company Dual chamber syringe with retractable needle
US9452268B2 (en) 2010-07-22 2016-09-27 Becton, Dickinson And Company Dual chamber syringe with retractable needle
WO2012012626A3 (en) * 2010-07-22 2012-05-03 Becton, Dickinson And Company Dual chamber syringe with retractable needle
US20120078225A1 (en) * 2010-07-22 2012-03-29 Becton, Dickinson And Company Dual Chamber Syringe With Retractable Needle
JP2015171573A (en) * 2010-07-22 2015-10-01 ベクトン・ディキンソン・アンド・カンパニーBecton, Dickinson And Company Dual chamber syringe with retractable needle
WO2012012601A1 (en) * 2010-07-22 2012-01-26 Becton, Dickinson And Company Dual chamber syringe with retractable needle
US9808602B2 (en) 2010-07-29 2017-11-07 Retractable Technologies, Inc. Needle retraction apparatus
US9308353B2 (en) 2010-07-29 2016-04-12 Retractable Technologies, Inc. Needle retraction apparatus
JP2015504695A (en) * 2011-12-06 2015-02-16 シー−メジャー リミテッド Sharps storage device
US9399100B2 (en) * 2011-12-06 2016-07-26 C-Major Ltd. Sharps retraction device
US20140343506A1 (en) * 2011-12-06 2014-11-20 C-Major Ltd. Sharps retraction device
CN104105520A (en) * 2011-12-06 2014-10-15 C玫哲有限公司 A sharps retraction device
WO2013083979A1 (en) * 2011-12-06 2013-06-13 C-Major Ltd. A sharps retraction device
US9302055B2 (en) 2012-12-14 2016-04-05 Retractable Technologies, Inc. Frontal attachment device for syringe with rotationally activated retractable needle
US9956352B2 (en) 2012-12-14 2018-05-01 Retractable Technologies, Inc. Combined medical device with sliding frontal attachment and retractable needle
WO2014143221A1 (en) * 2013-03-15 2014-09-18 Retractable Technologies, Inc. Frontal attachment device for syringe with pinch-activated retraction
CN104958811A (en) * 2015-06-26 2015-10-07 张依群 Novel syringe

Also Published As

Publication number Publication date Type
GB2400801B (en) 2005-03-09 grant
GB2400801A (en) 2004-10-27 application
FR2855058A3 (en) 2004-11-26 application
GB0309175D0 (en) 2003-05-28 grant
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US6808512B1 (en) 2004-10-26 grant

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