WO2006045222A1 - Seringue de securite - Google Patents

Seringue de securite Download PDF

Info

Publication number
WO2006045222A1
WO2006045222A1 PCT/CN2004/001236 CN2004001236W WO2006045222A1 WO 2006045222 A1 WO2006045222 A1 WO 2006045222A1 CN 2004001236 W CN2004001236 W CN 2004001236W WO 2006045222 A1 WO2006045222 A1 WO 2006045222A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
syringe
needle
push rod
shape
Prior art date
Application number
PCT/CN2004/001236
Other languages
English (en)
Chinese (zh)
Inventor
Wei-Shui Wu
Original Assignee
Wei-Shui Wu
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 Wei-Shui Wu filed Critical Wei-Shui Wu
Priority to PCT/CN2004/001236 priority Critical patent/WO2006045222A1/fr
Publication of WO2006045222A1 publication Critical patent/WO2006045222A1/fr

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
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31525—Dosing
    • A61M5/31531—Microsyringes, e.g. having piston bore diameter close or equal to needle shaft diameter

Definitions

  • the present invention relates to a safety syringe, and more particularly to a safety syringe that can be retracted into a syringe every time the used needle is seated.
  • the conventional syringe has a needle that is fixed in a twisting manner. Therefore, when the user finishes using it, the needle cover should be closed and the needle should be discarded to avoid the needle sticking and injury. Or the phenomenon of infection.
  • the user when the user often uses the needle to cover the needle, the user often stabs himself because of a momentary eye, a slippery hand or a lack of concentration; however, the stab is small, such as being The patient who is injected has hepatitis, AIDS or some blood-borne diseases...etc., etc., the stabbed person will be infected through the needle used by the patient.
  • An object of the present invention is to provide a safe syringe which is a simple syringe capable of achieving environmental protection and waste disposal volume reduction.
  • a second object of the present invention is to provide a safety syringe in which the needle cover can be inserted into the syringe after use.
  • Another object of the present invention is to provide a safety syringe that can be placed in the housing of the syringe after use.
  • a safety syringe includes: a syringe, which is a round tube body having a top end and a bottom end, and a ring convex portion is disposed near the inner end of the round tube body.
  • the annular convex portion and the bottom end form an accommodating portion
  • the accommodating portion is tapered from the rear end of the annular convex portion into a shape of a cone at the bottom end, and is at the bottom end of the syringe
  • the outer edge defines a through hole communicating with the accommodating portion, and the hole diameter of the through hole is a conical shape in which the accommodating portion is tapered to the outer edge of the bottom end;
  • a push rod the push rod is composed of a pressing portion, a main body, a neck portion, a protruding column and a set of rings, the front end of the neck portion is provided with a ring concave portion, and the collar is sleeved in the ring concave portion
  • the stud is a spherical cone
  • a needle holder having a base for changing a curved surface, a set of seats and a set of joints, wherein the shape of the upper plane of the base is a shape having a long axis and a short axis and approximately elliptical, and The total length of the outer circumference of the plane is smaller than the total length of the inner circumference of the ring protrusion, and the shape of the lower plane of the base is a circular shape and a circle L is provided, which is located at the sleeve.
  • the round hole can be fixed with a needle, and the needle communicates with the circular hole opened in the base;
  • a needle cap is formed in a hollow conical shape for covering the needle, and the outer edge ring of the needle cap is provided with a plurality of ribs.
  • the needle holder passes through the circular tube body of the injection tube with a pedestal, and abuts against the lower edge of the annular protrusion with the two ends of the long axis of the plane on the pedestal to form a resisting state and is disposed at the accommodating portion.
  • the pushing force causes the plunger of the pusher to enter the base of the needle seat, and the base of the plunger is inserted into the base.
  • the curved surface will gradually become a conical surface, so that the curved surface in the middle from the upper plane to the lower plane gradually steals from the stud, and the tension between the cone and the base of the stud passes the pressing force and friction.
  • the needle seat can be separated from the receiving portion and stored in the circle of the syringe: In the tube.
  • the needle seat can be provided to be removed from the accommodating portion with the push rod, and then placed in the round tube body and discarded, so as to prevent others from being pinched. .
  • the needle cover When used, the needle cover can be inserted into the perforation of the base and discarded together to save the resource recovery volume.
  • FIG. 1 is an exploded perspective view of a first embodiment of a safety syringe of the present invention
  • FIG. 2 is an exploded perspective view of the first embodiment of the safety syringe of the present invention
  • Figure 3 is a perspective exploded view of the safety syringe of the present invention
  • Figure 4 is an enlarged schematic view of the combination of the syringe and the collar
  • Figure 5 is a schematic view of the push rod disposed on the syringe
  • Figure 6 is a schematic diagram of the combination of the safety syringe
  • Figure 7 is a schematic enlarged view of the combination of the safety syringe
  • Figure 8 is a schematic view showing the combination of the cone of the push rod and the base ⁇ -spoon joint, and the needle seat is disengaged from the receiving portion.
  • Figure 9 is a schematic view showing the preferred embodiment of the present invention, in which the body of the syringe and the neck of the push rod are broken and separated after the pusher of the safety syringe.
  • the safety syringe provided by the invention has:
  • a syringe 1 is a circular tube body 11 having a top end and a bottom end.
  • the inner ring of the bottom end of the round tube body 11 is provided with a ring protrusion 111 so that the ring protrusion 111 forms a receiving portion with the bottom end. 12, and the receiving portion 12 is tapered from the rear end of the ring protrusion 111 along the bottom end to form a cone, and a through hole L 14 is formed on the outer edge of the bottom end of the syringe 1 to communicate with the receiving portion 12.
  • the aperture of the through hole 14 is tapered by the receiving portion 12 to the conical shape of the outer edge of the bottom end.
  • the push rod 2 is composed of a pressing portion 21, a main body 22, a neck portion 23, a protruding post 25 and a set of rings 26.
  • the front end of the neck portion 23 is provided with a ring recess 24 and is formed by a collar 26 sets are disposed on the annular recess 24, and the collar 26 can be made of rubber or silicone.
  • the collar 26 is made of rubber, and the boss 25 is a spherical cone.
  • a needle holder 3 is provided with a base 31 for changing a curved surface, a set of seats 32 and a set of joints 34.
  • the upper plane 314 of the base 31 has a shape of a long axis 312 and a short axis 313, and is approximately elliptical.
  • the shape of the upper surface of the upper surface 314 is the total length of the circumference of the ring convex portion 111, and the total length of the bottom convex portion 111 is a circular shape and a circular hole 316 is defined. It is located in the circular hole 316 of the sleeve portion 34, and a needle 33 can be fixed.
  • the needle 33 communicates with the circular hole 316 formed in the base 31.
  • a needle cover 4 is formed in a hollow conical shape for covering the needle 33, and the outer image ring of the needle cover 4 is provided with a plurality of convex ribs 41. As shown in FIG. 9, the needle cover 4 can be connected to the top and the bottom end.
  • the form has only one opening form, and in the present embodiment, the form in which the top and the bottom end communicate with each other is an illustrative example.
  • the needle holder 3 passes through the circular tube body 11 of the syringe 1 with the base 31, and the two ends of the long axis 312 of the upper surface 314 of the base 31 abut against the lower edge of the ring protrusion 111 to form.
  • the abutment state is set to the accommodating portion 12, and the sleeve 32 of the needle holder 3 passes through the through hole 14 of the syringe 1, whereby the lower surface 315 of the base 31 and the sleeve 32 are in close contact with the through hole 14, the push rod 2
  • the set collar 26 can be used with the syringe 1 spoon
  • the round tube body 11 is tightly closed. As shown in Fig.
  • the force of pushing causes the boss 25 of the push rod 2 to enter the needle.
  • the diameter is slightly smaller than the inner diameter of the ring protrusion 111. Therefore, when the user pulls out the sweat 2 (as shown in FIG. 8), the needle holder 3 can be detached from the accommodating portion 12 and collected in the circle of the syringe 1. In the tube body 1 1.
  • the head base 3 of the present invention can be further provided with a second embodiment.
  • the sleeve portion 34 of the needle holder 3 is provided with a 35-spoon sleeve of the needle holder; and the needle holder 35 is a commonly used needle holder.
  • the user can take different needles according to requirements, and the needle holder 35 is sleeved on the sleeve portion 34 by the fixing portion 351 to provide use.
  • the food and the middle finger are pressed against the abutting portion 13 of the syringe 1 and the thumb is used to gently press the pressing portion of the push rod 2.
  • the medicament (not shown) accommodated in the syringe 1 is squeezed out by the needle 33, and when the pusher 21 is pushed to move the pusher 2 to the bottom of the syringe 1, the pusher 2
  • the protrusion 25 is accommodated in the engaging portion 311 of the base 31 of the needle holder 3, so that the elliptical-shaped base 31 is deformed into a circular shape, and the diameter of the base 31 in this state is slightly smaller than the ring.
  • the needle cover 4 since the outer edge of the needle cover 4 is provided with a plurality of tapered ribs 41 and the top and bottom ends are connected, the needle cover 4 can be inserted into the through hole 14 of the syringe 1 and passed through The ribs 41 with abundance are positioned tightly.
  • the accommodating portion 12 is disposed in communication with the through hole 14, and the aperture of the accommodating portion 12 is larger than the aperture of the through hole 14, and thus forms a class shape, so when the susceptor 31 is placed
  • the syringe 1 is in the syringe 1, it can completely correspond to the accommodating portion 12 and the through hole 14, and can be completely accommodated in the accommodating portion 12, so that the needle holder 3 cannot fall out of the injection tube 1 from the through hole 14, and the accommodating portion thereof 12 and wear?
  • the class shape design of L 14 can also avoid the phenomenon of leakage of the drug during injection.
  • the syringe 1 is located at a position of the stopper portion 13 and is provided with an inclined portion 15, and the inclined portion 15 is formed at a position where the through hole 11 is formed. Therefore, when the safety syringe is used, the user 4 stores the push rod 2 to move. When the abutting portion 13 is reached, the stopper portion 27 of the push F 2 can be locked to the abutting portion 13, and the push rod 2 cannot be moved.
  • the main body 22 and the neck portion 23 can be separated from each other by a plurality of connection points when the syringe 1 is used.
  • the needle seat can be provided to be removed from the accommodating portion with the push rod, and then placed in the round tube body and discarded, so as to prevent others from being pinched. .
  • the needle cover When used, the needle cover can be inserted into the perforation of the base and discarded together to save the original recovery volume.

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

Seringue de sécurité comportant un cylindre (1), un piston (2), un raccord (3) et un capuchon (4). Le cylindre a une forme de canon (11) avec un bourrelet annulaire (111) à l'intérieur de celui-ci. Le raccord (3) comporte une base (31) qui a une surface curviligne variable. Quand l'injection de médicament est terminée, l'extrémité faisant saillie (25) sur le piston (2) est poussée dans la base (31) du raccord (3) pour changer la surface curviligne variable de la base (31) en une surface curviligne conique de façon à ce que le cône de l'extrémité faisant saillie (25) soit forcé de s'emboîter dans la portion d'emboîtement (311) de la base (31) par une force de compression et de frottement. Le diamètre extérieur de la base est inférieur au diamètre intérieur du bourrelet annulaire (111) après l'emboîtement, et par conséquent, quand on tire le piston (2) pour le sortir après usage, le raccord (3) se loge dans le cylindre (11) pour éviter de piquer quelqu'un.
PCT/CN2004/001236 2004-10-29 2004-10-29 Seringue de securite WO2006045222A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/001236 WO2006045222A1 (fr) 2004-10-29 2004-10-29 Seringue de securite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/001236 WO2006045222A1 (fr) 2004-10-29 2004-10-29 Seringue de securite

Publications (1)

Publication Number Publication Date
WO2006045222A1 true WO2006045222A1 (fr) 2006-05-04

Family

ID=36227052

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2004/001236 WO2006045222A1 (fr) 2004-10-29 2004-10-29 Seringue de securite

Country Status (1)

Country Link
WO (1) WO2006045222A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116747141A (zh) * 2023-08-11 2023-09-15 四川大学华西医院 一种可调节钝面弯曲程度的钝针及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2380409A (en) * 2001-10-02 2003-04-09 Cosbin Invest Inc Disposable Safety Syringe
US6706015B2 (en) * 2002-05-07 2004-03-16 Medexel Korea Safety syringe
CN2608026Y (zh) * 2003-03-18 2004-03-31 陆永会 安全注射器
CN1498661A (zh) * 2002-11-12 2004-05-26 U.S.技术股份有限公司 注射器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2380409A (en) * 2001-10-02 2003-04-09 Cosbin Invest Inc Disposable Safety Syringe
US6706015B2 (en) * 2002-05-07 2004-03-16 Medexel Korea Safety syringe
CN1498661A (zh) * 2002-11-12 2004-05-26 U.S.技术股份有限公司 注射器
CN2608026Y (zh) * 2003-03-18 2004-03-31 陆永会 安全注射器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116747141A (zh) * 2023-08-11 2023-09-15 四川大学华西医院 一种可调节钝面弯曲程度的钝针及其使用方法
CN116747141B (zh) * 2023-08-11 2024-01-16 四川大学华西医院 一种可调节钝面弯曲程度的钝针及其使用方法

Similar Documents

Publication Publication Date Title
US6461328B2 (en) Safety syringe
CN109496158B (zh) 一种一次性使用防针刺胰岛素注射笔针及防针刺方法
US20040024366A1 (en) Labor efficient safety syringe
US20040049160A1 (en) Safety hypodermic syringe
EA008426B1 (ru) Инъекционный шприц одноразового применения
US20070078404A1 (en) Safety syringe whose needle can be pulled back
US7066906B2 (en) Disposable syringe
US20080154195A1 (en) Safety syringe device
US6409704B1 (en) Retractable safety syringe
WO2006045222A1 (fr) Seringue de securite
US5961493A (en) Automatic safety infusion catheter needle
JP2004535265A (ja) 単回使用注射器
TWI564048B (zh) Push the unloading needle safety syringe
TWI258379B (en) Safety syringe
US6387079B1 (en) Safety syringe
AU2007100916A4 (en) Safety Syring Device
JP3108747U (ja) 安全な注射器
US7189216B2 (en) Coupling structure for self-destruction and safety syringe
TWI245653B (en) Safety syringe with needle head seat
JP3063073U (ja) 安全型注射器
WO2006102790A1 (fr) Seringue de securite avec raccord d’aiguille
TWM262191U (en) Safety syringe with retractable needle
US20060100576A1 (en) Safety device of syringe needle
KR200249104Y1 (ko) 주사기
TWM511336U (zh) 推進卸針式安全注射器

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MK MN MW MX MZ NA NI NO NZ PG PH PL PT RO RU SC SD SE SG SK SY TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SZ TZ UG ZM ZW AM AZ BY KG MD RU TJ TM AT BE BG CH CY DE DK EE ES FI FR GB GR HU IE IT MC NL PL PT RO SE SI SK TR BF CF CG CI CM GA GN GQ GW ML MR SN TD TG

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 04789895

Country of ref document: EP

Kind code of ref document: A1