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WO2012167605A1 - Structure interne de siège d'aiguille pour seringue de sécurité à auto-destruction - Google Patents

Structure interne de siège d'aiguille pour seringue de sécurité à auto-destruction Download PDF

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Publication number
WO2012167605A1
WO2012167605A1 PCT/CN2012/000760 CN2012000760W WO2012167605A1 WO 2012167605 A1 WO2012167605 A1 WO 2012167605A1 CN 2012000760 W CN2012000760 W CN 2012000760W WO 2012167605 A1 WO2012167605 A1 WO 2012167605A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular
base
needle seat
inner needle
elastic sealing
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.)
Ceased
Application number
PCT/CN2012/000760
Other languages
English (en)
Chinese (zh)
Inventor
王祖扬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIOTOP TECHNOLOGY (SHANGHAI) Co Ltd
Original Assignee
BIOTOP TECHNOLOGY (SHANGHAI) Co Ltd
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 BIOTOP TECHNOLOGY (SHANGHAI) Co Ltd filed Critical BIOTOP TECHNOLOGY (SHANGHAI) Co Ltd
Publication of WO2012167605A1 publication Critical patent/WO2012167605A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A61M5/32—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
    • A61M5/3293—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 characterised by features of the needle hub
    • 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
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
    • A61M2005/3224—Means to disalign the needle tip and syringe nozzle
    • 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/343—Connection of needle cannula to needle hub, or directly to syringe nozzle without a needle hub

Definitions

  • Inner needle seat structure for safe self-destructing syringe
  • the present invention relates to the technical field of medical devices, and more particularly to an inner needle hub structure for a safe self-destructing syringe, and more particularly to a mechanical connection structure thereof.
  • the outer wall of the needle seat is provided with an annular convex rib, and is closely attached to the convex edge of the top end of the inner cavity of the cylinder neck.
  • the needle is placed between the inner and outer walls of the needle seat, and the inner end of the core rod is provided with an inner hole, and one end of the barb is placed In the inner hole, the upper part of the core rod is provided with a mounting groove, and a sealing ring is built therein.
  • the middle part of the core rod is set as a six-piece body, a guiding groove is arranged between the sheet bodies, and a positioning piece is embedded in the bottom of the outer casing. Inside the slot. Comparative Document 2, Patent No.: ZL200720067715. 4, Application Date: 2007. 03.
  • the core rod includes: a core rod body, a columnar fastener is disposed at an upper end portion of the core rod body, and a rubber plug is sleeved at the columnar fastener member, wherein: the rubber plug is provided with a mounting hole, and the mounting hole is provided with a pouring Hook body.
  • Comparison Document 3 Patent No.: ZL 200720075476. 7, Application Date: 2007.
  • 10. 16 Announcement No.: CN201101783, Patentee: Shanghai Top Tang Biochemical Technology Co., Ltd.
  • the present invention discloses a "safety self-destructing syringe", comprising: a cylinder body, the end of the cylinder body is a cylinder neck, a needle seat is arranged in the cylinder neck, a needle tube is arranged in the needle seat body, and a core rod is arranged in the cylinder body cavity,
  • the end of the core rod is provided with a rubber plug, wherein: the top end of the core rod is provided with a mounting hole, and the mounting hole is provided with an S-shaped pull-back hook, and the S-shaped pull-back hook is composed of an upper hook body and a lower hook body, and the lower body body Placed in the mounting hole, the lower hook body is V-shaped, and one side arm of the lower hook body is vertical, and is parallel with the inner wall of the mounting hole and closely adheres to the inner wall of the mounting hole, and the upper hook body is inverted V-shaped, and the upper hook body is The side arm and the one side arm of the lower hook body are at an angle of less than
  • the utility model comprises: a cylinder body, a core rod is arranged in the cylinder body, a rubber plug is arranged near the end of the core rod, a needle is arranged in the cylinder neck of the cylinder body, and a needle tube is arranged at the needle head, wherein: the core rod end portion
  • the side wall of the rod body is provided with a lateral notch, the transverse notch is in communication with the longitudinal notch at the end of the mandrel rod, the transverse notch is matched with the longitudinal notch, and the needle is sleeved by the upper needle seat and the lower needle seat, and the lower needle seat is sleeved
  • the cavity is hollow, the lower needle seat has a cylindrical structure, and the lower needle seat is
  • a safe syringe including: The cylinder body is provided with a core rod, a rubber plug is sleeved at the core rod, and a needle seat is arranged in the cylinder neck of the cylinder body, and the needle seat end portion is provided
  • the utility model has a needle tube, wherein: the core rod end is provided with a safety pull-back lock cylinder body, and the outer wall of the safety return lock cylinder body is provided with an upper limit locking ring and a lower limit locking ring from top to bottom, the cylinder body
  • the upper end of the cylinder neck is provided with a top safe pull-back needle seat and a lower safety pull-back base from top to bottom, and the upper safe pull-back needle seat and the lower safety pull-back base are annular, and the safety pull-back lock cylinder
  • the above-mentioned comparative documents disclose several typical needle-seat pull-back safety syringes and safety self-destructing syringes, the basic principle of which is to use the core after the partial pull-in part provided at the end of the core rod and the needle seat in the syringe are partially engaged.
  • the pull-back force of the rod pulls the needle head back into the inner body of the syringe barrel for safe or safe self-destruction.
  • the pull-back member of the end of the core rod generally adopts two forms, one of which is a metal barb, and the partial locking of the barb body and the inner needle seat is realized by utilizing the elastic property of the metal piece, and the second is a column pull-back piece.
  • a protruding snap-locking structure is arranged on the outer surface of the column, and cooperates with the inner structure of the inner needle seat to realize partial locking with the inner needle seat.
  • the original design of the existing inner needle seat pull-back safety or safety self-destructing syringe adopts a single inner needle seat structure, but in actual tests, it is found that when the inner needle seat and the cylinder neck meet the standard of engagement The pullback force required for the inner needle seat to be pumped back is large, which makes the syringe unable to achieve safe operation. When the required pullback force of the inner needle seat reaches the desired value, the inner needle seat and the neck of the cylinder barrel are engaged. And the sealing effect is not ideal.
  • the syringe is generally designed with an upper and lower double needle seat structure, the upper needle seat realizes the engagement function with the neck of the syringe barrel, the lower needle seat realizes the engagement function with the pullback member, the upper needle seat and the lower needle
  • the seats are connected by a nip.
  • the upper and lower needle holders have higher mold cost, and the mold opening process is more complicated, and often cannot be demoulded once, and second demoulding is required.
  • the upper and lower split type needle holders are prone to assembly errors, resulting in product scrapping. At the same time, the assembly difficulty is increased.
  • the upper and lower split type needle holders are prone to malfunction in operation and the stability of the working state of the syringe. Poor.
  • the object of the present invention is to provide an inner needle seat structure for a safety self-destructing syringe, which adopts a single inner needle seat structure, and the inner needle seat portion forms a buffer zone with elastic expansion and contraction function, which overcomes the characteristic band of the material itself.
  • the elastic buffer can ensure the bite force and tightness between the inner needle seat and the neck, and reduce the pulling force required when the inner needle seat is pulled back when the inner needle seat is pulled back, so that The two key elements of the contradiction achieve an optimal balance point.
  • the one-piece inner needle seat can be demoulded at one time, and the working state is stable, which overcomes the shortcomings and deficiencies in the prior art.
  • an inner needle seat structure for a safe self-destructing syringe which comprises an inner needle seat body, and the lower end of the inner needle seat body is provided with a back
  • the locking cavity is characterized in that: the inner needle seat body is provided with a needle tube base, and an elastic sealing limit base integrally formed with the needle tube base, and the two are integrated into a single structure, the needle base
  • An annular step or an annular slope is formed between the elastic sealing limit base and the annular sealing gap is formed on the surface of the elastic sealing limit base, and the outer side of the elastic sealing limit base on the outer side of the annular buffer gap is formed into a ring shape. Seal the limit engagement part.
  • An inner needle seat structure for a safety self-destructing syringe comprising an inner needle seat body, wherein a lower end of the inner needle seat body is provided with a pull-back locking cavity, wherein: the inner needle seat body is provided with a needle base And an elastic sealing limit base with a component structure of the needle base, the two components are assembled, the annular base or the annular slope is formed between the needle base and the elastic sealing limit base, and the elastic sealing limit An annular buffer gap is formed on the surface of the base, and an annular sealing limit engagement portion is formed on the outer wall of the elastic sealing limit base outside the annular buffer gap.
  • the invention discloses an inner needle seat structure for a safe self-destructing syringe.
  • the annular inner cushion seat is provided with an annular buffer gap, which overcomes the defects caused by the material itself, and the elastic buffer can ensure the inner needle.
  • the seat can be injection molded at one time, which effectively reduces the manufacturing cost and simplifies the manufacturing process.
  • the "0"-shaped sealing rubber ring can ensure the complete sealing effect of the inner needle seat and the neck of the syringe barrel.
  • the finished syringe is easy to operate in practical use.
  • the working condition is stable, has good practicability, and has outstanding substantive features and significant progress compared to the prior art.
  • Figure 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • 2 is a schematic structural view of a second embodiment of the present invention.
  • Fig. 3 is a view showing an initial state of the first embodiment of the present invention.
  • Fig. 4 is a view showing the state of use of the first embodiment of the present invention.
  • Fig. 5 is a diagram showing the safety self-destruction of the first embodiment of the present invention.
  • Figure 6 is a diagram showing an initial state of a second embodiment of the present invention.
  • Figure 7 is a diagram showing the state of use of the second embodiment of the present invention.
  • Figure 8 is a diagram showing the safety self-destruction of the second embodiment of the present invention.
  • Figure 9 is a schematic view showing the structure of the cylinder of the present invention.
  • the invention is a structure of an inner needle seat for a safe self-destructing syringe.
  • FIG. 1 it is a schematic structural view of a first embodiment of the present invention, which mainly comprises an inner needle body 1 and a lower end of the inner needle body 1 .
  • the pull-back locking cavity 2 is opened, which is different from the prior art in that: the inner needle seat body 1 is provided with a needle base 3, and an elastic sealing limit base 4 integrally formed with the needle base 3; The two are integrated into a single structure, and the needle base 9 is provided at the end of the needle base 3, and an annular step 7 or an annular slope is formed between the needle base 3 and the elastic sealing limit base 4, and the annular step 7 or the annular slope surface is sleeved with an "O"-shaped sealing rubber ring 10, and the surface of the elastic sealing limit base 4 is provided with an annular buffer gap 5, that is, an annular groove or an approximate structure, and the elasticity of the outer side of the annular buffer gap 5 An annular seal limit engagement portion 6 is formed at the outer wall of the seal limiting base 4, that is, an annular seal limit rib or an approximate structure.
  • an inner needle seat structure of another structure is disclosed, and the positions of the annular buffer gap 5 and the annular seal limit engagement portion 6 are raised upward.
  • This structure is generally suitable for small size syringes.
  • the third embodiment of the present invention mainly includes an inner needle hub body 1.
  • the lower end of the inner needle hub body 1 is provided with a pull-back locking cavity 2, which is different from the prior art in that:
  • the needle base 3 and the elastic sealing limit base 4 of the body structure of the needle base 3 are combined, and the two parts are assembled, and the annular base 7 is formed between the needle base 3 and the elastic sealing limit base 4.
  • an annular slope surface, the annular step 7 or the annular slope surface is sleeved with an "O"-shaped sealing rubber ring 10
  • the surface of the elastic sealing limit base 4 is provided with an annular buffer gap 5, and an annular buffer gap 5
  • the outer sealing portion of the outer elastic sealing limit base 4 forms an annular sealing limit engaging portion 6.
  • the height of the annular buffer gap 5 from the notch to the bottom of the groove is 0.1 mm-20 mm
  • the width of the annular buffer gap 5 is 0.1 mm-20 mm
  • the outer buffer wall of the annular buffer gap 5 and the annular seal The distance between the arcuate top of the surface of the limiting engaging portion 6 is 0.1 mm-20 mm, and the distance between the outer groove wall of the annular buffering gap 5 and the outer wall of the annular sealing limit engaging portion 6 is 0.1 mm-20 mm.
  • the distance between the bottom of the outer groove wall of the annular buffer gap 5 and the outer wall of the annular seal limiting engagement portion 6 is 0.1 mm to 20 mm.
  • the surface of the annular seal limiting engaging portion 6 is curved, and the distance from the top of the arc to the edge of the curved surface is smaller than the distance from the top of the arc to the lower edge of the curved surface.
  • annular recess 8 is formed at an outer wall of the elastic sealing limit base 4 at the lower portion of the sealing limiting rib 6 , and the annular recess 8 is located on the same horizontal plane as the groove bottom of the annular buffer gap 5 or The bottom of the groove is higher than the annular buffer gap 5.
  • the upper surface of the elastic sealing limit base 4 is provided with an annular buffer gap 5 .
  • an annular buffer gap 5 is defined in a lower surface of the elastic sealing limit base 4 .
  • the needle base 3 is cylindrical, and the elastic sealing limit base 4 is disposed at the bottom of the needle base 3, and the two form a unitary single structure or a split assembly structure.
  • the needle base 3 is cylindrical
  • the elastic sealing limit base 4 is disposed at the middle portion of the cylinder base 3 cylinder, and the two form a unitary single structure or a split assembly structure.
  • the needle base 3 is cylindrical, and the elastic sealing limit base 4 is disposed at the top of the needle base 3, and the two form a unitary single structure or a split assembly structure.
  • a plurality of notches or cut lines are formed at the annular seal limit engaging portion 6 of the outer wall of the elastic seal retaining base 4.
  • the inner needle body 1 is assembled from the rear portion into the inner body of the syringe barrel, and the buffer zone is an annular buffer gap 5 and a ring.
  • the sealing position limiting engaging portion 6 is disposed at the inner needle seat near the lower end, and the outer diameter of the annular sealing limit engaging portion 6 is smaller than the inner diameter of the cylindrical neck, but the ring buffer gap 5 is provided, so the ring
  • the outer portion of the annular seal limiting portion 6 is curved, so that the guiding effect is obtained.
  • the syringe is used, the core rod is pushed forward, the metal barb body at the end of the core rod is displaced forward, and the end of the metal barb body forms a curved turn-back portion, and the width of the meandering portion is slightly Less than or equal to the diameter of the inner cavity of the pull-back locking cavity 2, so that the end of the barb body easily enters the pull-back locking cavity 2, and the rear width of the metal barb body is larger than the inner diameter of the pull-back locking cavity 2
  • the end portion of the twisted portion has an elastic characteristic, the elastic arm of both sides of the metal barb is bent and the inner side of the twisted portion is easily deflected toward the inner side. At this time, the inner angle of the rounded portion becomes small, and thus, the metal barb The body can be fully inserted into the pull-back locking cavity.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne une structure interne de siège d'aiguille pour une seringue de sécurité à auto-destruction, caractérisée en ce qu'un corps siège d'aiguille interne (1) présente un culot d'aiguille (3), et une base de limitation de position d'étanchéité élastique (4) solidaire avec le culot d'aiguille (3); les deux peuvent former une structure unitaire monobloc ou une structure de montage séparé; un étage annulaire (7) ou une inclinaison annulaire est formé entre le culot d'aiguille (3) et la base de limitation de position d'étanchéité élastique (4); la surface de la base de limitation de position d'étanchéité élastique (4) présente un espace tampon annulaire (5); une partie de mise en prise de limitation de position d'étanchéité annulaire (6) est formée au niveau de la paroi extérieure de la base de limitation de position d'étanchéité élastique (4) à l'extérieur de l'espace tampon annulaire (5); le produit permet de remédier au défaut lié aux propriétés du matériau à proprement parler, la zone tampon élastique peut garantir la prise et l'étanchéité entre le siège d'aiguille interne et le col de corps de seringue, et la force de traction nécessaire pour le retrait du siège d'aiguille interne lors du retrait de celui-ci peut être réduite, de sorte que les deux éléments clés en opposition atteignent un point d'équilibre optimal.
PCT/CN2012/000760 2011-06-07 2012-06-04 Structure interne de siège d'aiguille pour seringue de sécurité à auto-destruction Ceased WO2012167605A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201120188751.2 2011-06-07
CN2011201887512U CN202105269U (zh) 2011-06-07 2011-06-07 一种用于安全自毁式注射器的内针座结构

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/377,342 A-371-Of-International US8642637B2 (en) 2009-06-11 2010-05-28 Salts of bicyclo-substituted pyrazolon azo derivatives, preparation method and use thereof
US14/164,834 Division US9120762B2 (en) 2009-06-11 2014-01-27 Salts of bicyclo-substituted pyrazolon azo derivatives, preparation method and use thereof

Publications (1)

Publication Number Publication Date
WO2012167605A1 true WO2012167605A1 (fr) 2012-12-13

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PCT/CN2012/000760 Ceased WO2012167605A1 (fr) 2011-06-07 2012-06-04 Structure interne de siège d'aiguille pour seringue de sécurité à auto-destruction

Country Status (2)

Country Link
CN (1) CN202105269U (fr)
WO (1) WO2012167605A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202105269U (zh) * 2011-06-07 2012-01-11 倍安德普医疗科技（上海）有限公司 一种用于安全自毁式注射器的内针座结构
CN202105275U (zh) * 2011-06-07 2012-01-11 倍安德普医疗科技（上海）有限公司 一种安全自毁式注射器
CN202236663U (zh) * 2011-07-18 2012-05-30 倍安德普医疗科技（上海）有限公司 一种可换针安全自毁式注射器
CN102886094A (zh) * 2011-07-18 2013-01-23 王祖扬 一种用于安全自毁式注射器的可换针内针座结构
CN202569090U (zh) 2012-02-29 2012-12-05 王祖扬 一种针头回拉式安全自毁注射器
CN202777314U (zh) * 2012-02-29 2013-03-13 王祖扬 一种用于回拉式安全自毁式注射器的芯杆结构
CN103285464B (zh) * 2012-02-29 2016-05-11 王祖扬 一种针头回拉式可换针安全自毁注射器
CN202892570U (zh) * 2012-02-29 2013-04-24 王祖扬 一种针头回拉式可换针安全自毁注射器
CN202569092U (zh) * 2012-02-29 2012-12-05 王祖扬 一种用于安全自毁式注射器的针座结构
CN103285466B (zh) * 2012-02-29 2016-05-11 王祖扬 一种针头回拉式安全自毁注射器
CN202777315U (zh) * 2012-02-29 2013-03-13 王祖扬 一种用于安全自毁式注射器的可换针内针座结构
CN103285465A (zh) * 2012-02-29 2013-09-11 王祖扬 一种用于回拉式安全自毁式注射器的芯杆结构

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US6066115A (en) * 1999-07-19 2000-05-23 Chang Lai; Yu-Hau Safety syringe
WO2004045683A1 (fr) * 2002-11-19 2004-06-03 Peter Balfour Dugmore Seringue hypodermique de securite
CN2750815Y (zh) * 2004-12-29 2006-01-11 吴建中 一次性安全自毁式注射器
CN2782119Y (zh) * 2005-01-25 2006-05-24 林作钱 一种安全自毁式一次性使用的注射器
CN101189039A (zh) * 2005-04-04 2008-05-28 麦迪塞弗环球控股有限公司 柱塞上应用弹性卡子的具有可缩回的针的安全注射器
WO2009154462A1 (fr) * 2008-06-19 2009-12-23 Addino B.V. Seringue hypodermique dotée d'une aiguille rétractable
CN202105269U (zh) * 2011-06-07 2012-01-11 倍安德普医疗科技（上海）有限公司 一种用于安全自毁式注射器的内针座结构
CN202105275U (zh) * 2011-06-07 2012-01-11 倍安德普医疗科技（上海）有限公司 一种安全自毁式注射器
CN202161645U (zh) * 2011-07-18 2012-03-14 倍安德普医疗科技（上海）有限公司 一种用于安全自毁式注射器的可换针内针座结构
CN202236663U (zh) * 2011-07-18 2012-05-30 倍安德普医疗科技（上海）有限公司 一种可换针安全自毁式注射器

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6066115A (en) * 1999-07-19 2000-05-23 Chang Lai; Yu-Hau Safety syringe
WO2004045683A1 (fr) * 2002-11-19 2004-06-03 Peter Balfour Dugmore Seringue hypodermique de securite
CN2750815Y (zh) * 2004-12-29 2006-01-11 吴建中 一次性安全自毁式注射器
CN2782119Y (zh) * 2005-01-25 2006-05-24 林作钱 一种安全自毁式一次性使用的注射器
CN101189039A (zh) * 2005-04-04 2008-05-28 麦迪塞弗环球控股有限公司 柱塞上应用弹性卡子的具有可缩回的针的安全注射器
WO2009154462A1 (fr) * 2008-06-19 2009-12-23 Addino B.V. Seringue hypodermique dotée d'une aiguille rétractable
CN202105269U (zh) * 2011-06-07 2012-01-11 倍安德普医疗科技（上海）有限公司 一种用于安全自毁式注射器的内针座结构
CN202105275U (zh) * 2011-06-07 2012-01-11 倍安德普医疗科技（上海）有限公司 一种安全自毁式注射器
CN202161645U (zh) * 2011-07-18 2012-03-14 倍安德普医疗科技（上海）有限公司 一种用于安全自毁式注射器的可换针内针座结构
CN202236663U (zh) * 2011-07-18 2012-05-30 倍安德普医疗科技（上海）有限公司 一种可换针安全自毁式注射器

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