WO2012126342A1 - Structure destinée à être utilisée dans un injecteur jetable et injecteur jetable - Google Patents

Structure destinée à être utilisée dans un injecteur jetable et injecteur jetable Download PDF

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Publication number
WO2012126342A1
WO2012126342A1 PCT/CN2012/072527 CN2012072527W WO2012126342A1 WO 2012126342 A1 WO2012126342 A1 WO 2012126342A1 CN 2012072527 W CN2012072527 W CN 2012072527W WO 2012126342 A1 WO2012126342 A1 WO 2012126342A1
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WO
WIPO (PCT)
Prior art keywords
disposable syringe
shoulder
core rod
deflecting
deflecting portion
Prior art date
Application number
PCT/CN2012/072527
Other languages
English (en)
Chinese (zh)
Inventor
江波
Original Assignee
常州和康医疗器材有限公司
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 常州和康医疗器材有限公司 filed Critical 常州和康医疗器材有限公司
Publication of WO2012126342A1 publication Critical patent/WO2012126342A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston

Definitions

  • the present invention relates to a structure for a disposable syringe and a disposable syringe to which the structure is applied.
  • the hypodermic syringe In order to avoid cross-infection when entering or removing media from humans or animals, the hypodermic syringe must be used once and disposed of as waste after use.
  • the most widely used disposable syringes today consist of a hollow cylinder, a needle, and a fixed-range piston that fits within the barrel.
  • the biggest problem with this kind of syringe is that after the injection is completed, the needle remains outside, which not only causes inconvenience to the handling and destruction of the syringe garbage, but also may injure the medical staff due to carelessness, resulting in the secondary cross of the bacteria. Infection, it becomes a medical hazard that cannot be ignored.
  • a syringe such a disposable syringe, can be further configured to lock the retrieved needle within the barrel by a latching structure disposed on the core rod and the syringe to disable the disposable syringe.
  • it is also possible to provide a break point on the core rod so that the core rod can be broken after the core rod is pulled back into position, ensuring that the disposable syringe can no longer be used.
  • the inner diameter of the gate is slightly smaller than the maximum outer diameter of the structure, and in the opposite direction, the gate cannot pass through unless the mechanical means exerts a sufficiently large external force on the structure, as in When the disposable syringe is assembled using a mechanical assembly machine.
  • a tapered platform structure 11 as shown in Fig. 1 is arranged on the head of the core rod, and a shoulder is correspondingly provided on the side of the inner hole of the needle holder.
  • Shape (gate) 12 The inner diameter of the shoulder portion 12 is slightly smaller than the diameter of the bottom surface of the conical table structure 11.
  • the drawback of this structure is that during the injection, the process of pushing the tapered table structure 11 over the shoulder portion 12 needs to overcome a large resistance, which not only causes great inconvenience to the operator, but also makes the injection process not easy if the control is not good. Stable, even causing unnecessary pain to the person being injected.
  • the PCT patent application with the publication number WO2011/029264 discloses a 'needle tip retractable disposable safety syringe', as shown in Fig. 2.
  • a pair of engaging flanges 21, 22, respectively tapered and inverted are disposed on the core rod at opposite intervals, and a matching shoulder having a right-angled edge is provided on the inside of the barrel.
  • Shape 23 When the core rod is pulled back, the engaging shoulder portion 23 is caught on the engaging flange 21, 22 Between so that the core rod and the syringe are snapped together.
  • a disadvantage of the above structure is that the inverted tapered engagement flange 22 is even assembled by the force of the mechanical assembly machine during assembly.
  • the technical problem to be solved by the present invention is to provide a structure for a disposable syringe and a disposable syringe to which the structure is applied, so that the pullback of the needle and the locking of the core rod are more It is lightweight and it is easier to assemble this disposable syringe.
  • the present invention provides in a first aspect A structure for a disposable syringe, the structure comprising a deflecting portion, a blocking portion, and a connecting portion connecting the deflecting portion and the blocking portion, the deflecting portion being deflectable toward or away from the blocking portion, when the deflecting portion is deflected toward the blocking portion, The deflecting portion abuts against the blocking portion.
  • the deflecting portion forms a bevel or a tapered surface when the deflecting portion abuts against the blocking portion
  • the deflecting portion is of a one-piece or split type.
  • the deflecting portion is circular, polygonal, petal or strip-shaped.
  • the structure is integrally injection molded.
  • the deflecting portion has a thin root, a thick edge.
  • the structure is disposed on a mandrel of a disposable syringe.
  • the structure is disposed inside the syringe of the disposable syringe.
  • the structure is disposed on the inner side of the central through hole of the hub of the disposable syringe.
  • the invention provides, in a second aspect, a disposable syringe comprising a syringe and a core rod, wherein the core rod comprises at least one structure provided by the first aspect of the invention, the inside of the barrel comprising at least one shoulder, the structure When set to pull back the core rod, the structure cannot pass down the shoulder.
  • the upper structure is the first structure
  • the lower structure is the second structure
  • the first structure and the second structure are opposite;
  • the inner side of the barrel is provided with the upper shoulder and the lower shoulder.
  • the second structure is configured to pass down the upper shoulder when the core rod is pulled back after the injection is completed, but can no longer pass up the lower shoulder, and the first structure is set to not pass down the upper shoulder Shape.
  • the second structure is configured to elastically deform the syringe to push upward over the upper shoulder and the lower shoulder.
  • a platform and a structure are disposed on the core rod at intervals, and the table portion is above, the structure is lower, and the deflecting portion of the structure and the bottom surface of the table portion face each other; the inner side of the barrel is provided with an upper shoulder portion and a lower shoulder portion; an outer diameter of the table portion is larger than an inner diameter of the upper shoulder portion, and a circumference of the upper end surface of the table portion is provided as an inclined surface; the structure is disposed to pass downward through the upper shoulder portion, but can no longer Pass up through the lower shoulder.
  • the structure is configured such that upon machine assembly of the disposable syringe, the structure can elastically deform the syringe and push up through the lower shoulder.
  • the deflecting portion is of a one-piece or split type.
  • the deflecting portion is circular, polygonal, petal or strip-shaped.
  • the core rod is integrally injection molded.
  • the deflecting portion has a thin root portion and a thick edge.
  • the invention also provides, in a third aspect, a disposable syringe comprising a needle holder, a syringe and a core rod, wherein the core rod comprises at least one structure according to the first aspect of the invention, the needle holder is provided with a shoulder When the core rod is pulled back, the structure is set so that it cannot pass down the shoulder.
  • a support member having a central through hole, the support member being coupled to the inner side of the syringe, the needle holder being held between the syringe and the support member; the core member including two structures, the upper structure being the first structure
  • the lower structure is the second structure, and the first structure and the second structure are oriented in the same direction; the first structure is arranged to pass upward through the shoulder when injecting, but can not pass down through the shoulder when the injection is pulled back
  • the second structure is configured to pass upward through the central through hole at the time of injection, but cannot pass down through the central through hole when the injection is completed.
  • the deflection portion of the structure is a one-piece or sliced type.
  • the deflecting portions of the structure are circular, polygonal, petal, and strip.
  • the core rod is integrally injection molded.
  • the deflecting portion has a thin root portion and a thick edge.
  • the structure provided by the invention can be applied to the pullback of the needle seat and to the latch between the core rod and the syringe, which can reduce the resistance of the pullback and latching process and make the injection process more Stable, the card lock process is more labor-saving, the assembly process is more simplified, and the production is convenient and the cost is low.
  • Figure 1 shows a prior art structure for retracting a hub on a core rod.
  • Figure 2 shows the prior art latching structure between the syringe and the core.
  • Figure 3 shows an auxiliary assembly ring for assembly in the prior art.
  • 4(a), 4(b), 4(c) and 4(d) show a specific embodiment of a structure and its different states in accordance with the present invention.
  • Figure 5 shows a specific embodiment of a deflection unit of the structure according to the invention.
  • Figure 6 shows another embodiment of a deflection section of a structure in accordance with the present invention.
  • Figure 7 shows another embodiment of a deflection section of a structure in accordance with the present invention.
  • Figure 8 illustrates a specific embodiment of a core rod of a disposable syringe employing the structure of the present invention.
  • Figure 9 illustrates a particular embodiment of a syringe that mates with the core rod of Figure 8.
  • Figure 10 is a schematic view showing the core rod of Figure 8 and the barrel of Figure 9 in a latched state.
  • Fig. 11 shows an enlarged view of A in Fig. 10.
  • Figure 12 shows an alternative embodiment at A in Figure 11.
  • Figure 13 illustrates a specific embodiment of a structure according to the invention applied to a hub of a disposable syringe.
  • Figure 14 illustrates an embodiment in which the structure according to the present invention is disposed inside the barrel.
  • Figure 15 shows another embodiment of a deflection portion of a structure in accordance with the present invention.
  • Figure 4 shows a schematic view of an embodiment of a structure according to the invention, wherein the structure 100 comprises three parts in sequence: a deflection unit 101, a connection portion 102, a blocking portion 103, wherein the deflection portion 101 is arranged to be under external force,
  • the deflecting portion 101 is deflected at the root portion 104 such that the deflecting portion 101 It can be deflected up and down, as shown in Figure 4(b) and Figure 4(c).
  • the deflecting portion 101 is preferably made of a material having a certain flexibility such as plastic, so that when the external force is removed, the deflecting portion 101 can substantially return to the initial position as shown in Fig. 4 (a).
  • the outer diameter of the deflecting portion 101 is larger than the outer diameter of the blocking portion 103.
  • the outer diameter of the connecting portion 102 is smaller than the outer diameters of the deflecting portion 101 and the blocking portion 103, and the length of the connecting portion 102, that is, the spacing distance between the deflecting portion 101 and the blocking portion 103 is set to be when the deflecting portion 101 faces the blocking portion 102.
  • the deflection may not continue to deflect due to the interference with the blocking portion 103, and the deflected deflecting portion 101 at this time forms a slope or a tapered surface 105.
  • 105 is a tapered surface (for example, when the deflecting portion 101 is circular)
  • the deflecting portion 101 is generally shaped like a dish.
  • the slope or taper of the bevel or tapered surface 105 can be adjusted by adjusting the length of the connecting portion 102, that is, the pitch of the deflecting portion 101 and the blocking portion 103, and/or the difference in outer diameter between the two. This adjustment is a conventional means for those skilled in the art.
  • the deflecting portion 101 is deflected in the opposite direction to the blocking portion 103, the deflecting portion 101 can be freely deflected because there is no restriction of the blocking portion 103.
  • the structure 100 is typically used in conjunction with a gateway, where the gateway refers to a through hole, a shoulder, an opening, and the like.
  • the inner diameter of the gate that cooperates with the structure 100 is generally set to be larger than the outer diameter of the blocking portion 103 and smaller than the outer diameter of the deflecting portion 101, such that when the structure passes the gate forward with the blocking portion 103, the blocking portion 103 and the connecting portion 102 can pass through the gate without any hindrance, and the deflecting portion 101 can be freely deflected in the opposite direction to the blocking portion 103 under the action of the gate to easily pass the gate; and when the structure moves back, the deflecting portion 101 First, it is in contact with the gate, and the deflecting portion 101 is deflected toward the blocking portion 103 under the action of the gate and abuts against the blocking portion 103, so that the deflection cannot be continued.
  • the bevel or cone 105 and the gate are arranged such that when the user performs a manual operation, the bevel or cone 105 is blocked at the gate and cannot pass.
  • the bevel or tapered surface 105 can be pushed through the gate by elastically deforming the gate, thereby causing the structure 100 Pass the pass.
  • the above technical effects can be achieved by manufacturing a bevel or a tapered surface as needed.
  • the inclination or taper is achieved by selectively setting the ease of elastic deformation of the gate (related to the material, thickness, etc. of the gate), and such selection is conventional to those skilled in the art without any need Creative labor can be achieved.
  • the structure 100 is preferably integrally molded, and of course can also be assembled.
  • the thickness of the deflecting portion 101 is preferably between 0.2 mm and 1.0 mm, and the length of the connecting portion 102, that is, between the deflecting portion 101 and the blocking portion 103.
  • the separation distance is preferably less than 0.7 mm.
  • the deflecting portion 101 may also be disposed to be unequal in thickness, as shown in FIG. 4(d), the root portion 104 of the deflecting portion 101 may be designed to be thinner to make it easier to deflect to form a bevel or tapered surface 105, while The edge portion of the deflecting portion 101 can be designed to be relatively thicker, such as 1.5 mm to 2.0 mm, such that the beveled or tapered surface 105 is less susceptible to deformation under the action of the gate and the barrier portion 103.
  • the deflection unit 101 has various possible embodiments, as shown in Figures 5, 6, and 7. The whole and multi-piece shown, as well as the circle or polygon, and the strip with a round head as shown in Figure 15.
  • the deflection unit 101 is known to those skilled in the art. There are many equivalent embodiments such as a petal shape, a strip shape, a railing shape, an elliptical shape, etc., which may be provided with a single groove or a plurality of grooves, etc., and are all within the scope of the present invention.
  • FIGS. 9-11 illustrate one embodiment of applying the above described structure 100 to a latch between the disposable syringe plunger 1 and the syringe 2.
  • two of the above-described structures 100 are spaced apart from the mandrel 1 of the disposable syringe, wherein the orientation of the first structure 100a above and the second structure 100b below is opposite.
  • the inner side of the barrel 2 is provided with an upper shoulder portion 201 and a lower shoulder portion 202, and wherein the outer diameters of the first blocking portion 103a and the second blocking portion 103b are less than or equal to the upper shoulder.
  • the outer diameter of the first deflecting portion 101a is larger than the inner diameter of the upper shoulder portion 201, and the outer diameter of the second deflecting portion 101b is larger than the inner diameter of the lower shoulder portion 202.
  • the interval between the first deflecting portion 101a and the second deflecting portion 101b is greater than or equal to the interval between the upper shoulder portion 201 and the lower shoulder portion 202 .
  • the dimensions of the portions of the first structure 100a and the second structure 100b are preferably identical; the inner diameters of the upper shoulder 201 and the lower shoulder 202 are preferably identical.
  • the second structure 100b is configured to pass downwardly through the upper shoulder 201 when the core rod is pulled back after the injection is completed, but can no longer pass upward through the lower shoulder 202, and the first structure 100a It is then set so as not to pass downward through the upper shoulder 201.
  • the core rod and the syringe using the above arrangement can be assembled by mechanical assembly methods commonly used in the prior art, such as assembly on a conventional syringe disc type automatic mechanical assembly machine, without the use of an auxiliary assembly ring.
  • the direction of the blocking portion 103a is free to deflect and can easily pass through the upper shoulder portion 201 and the lower shoulder portion 202, while the second deflecting portion 101b of the second structure 100b is subjected to the second blocking portion due to its deflection toward the second blocking portion 103b.
  • the bevel or the tapered surface is formed by the limitation of the circumference of the 103b.
  • the inclined surface or the tapered surface formed by the second deflecting portion 101b is formed by the mechanical force and the inertial force.
  • the barrel is configured to be elastically deformable by the force applied by the assembly machine, and is squeezed through the upper shoulder portion 201 and the lower shoulder portion 202 during assembly to fit into the barrel 2.
  • both the inclined surface or the tapered surface of the first structure 100a and the second structure 100b are set so that the force generated by the operator's manual operation is not pushed over the upper shoulder 201 or the lower shoulder 202. Thereby, the locking between the core rod 1 and the syringe 2 is achieved.
  • the assembly ring can be eliminated during assembly, thereby saving the process and cost, and the assembly method is the same as that of the ordinary disposable syringe, and can be assembled on the existing automatic assembly machine.
  • the back-pull core rod 1 is used for locking, no hard pressing process is required, so the resistance of the entire pull-back and latching process is small, and it is easy and labor-saving.
  • first structure 100a may be replaced with a table portion 105 having an outer diameter larger than that of the upper shoulder portion 201 as shown in FIG. 12, wherein the circumference of the upper end surface of the table portion 105 is formed as an inclined surface for assembly. Since the table portion 105 needs to be squeezed through the upper shoulder portion 201 having an inner diameter smaller than that during assembly, this configuration makes the resistance to be overcome during assembly greater.
  • the first structure 100a can be disposed on the core rod 1, and only the upper shoulder portion 201 is disposed on the barrel 2. At this time, the first structure 100a can prevent the core rod 1 from being pulled out of the syringe when pulled back. 2, that is, like the function of the stop structure on the ordinary syringe, and the advantage of this arrangement is also that the assembly is more convenient and labor-saving than the stop structure on the ordinary syringe.
  • Figure 13 shows an embodiment of the application of the structure according to the invention to the pullback of a needle holder, in which 3 is a needle hub, 2 is a syringe, 4 is a support with a central through hole 41, and 5 is a core
  • the head of the rod 1 is connected to a slot 25 in the barrel 2
  • the needle holder 3 is positioned between the barrel 2 and the support member 4, and the inner hole 31 of the needle holder 3 is also provided with a shoulder shape.
  • Part 32 Part 32.
  • the third structure 100c and the fourth structure 100d are disposed at intervals on the head 5 of the core rod 1, wherein the third structure 100c and the fourth structure 100d are oriented in the same direction, and the third blocking portion 103c is
  • the outer diameter is smaller than the inner diameter of the central through hole 41 of the shoulder portion 32 and the support member 4
  • the outer diameter of the fourth blocking portion 103d is smaller than the inner diameter of the central through hole 41 of the support member 4
  • the outer diameter of the third deflecting portion 101c is larger than the shoulder shape.
  • the inner diameter of the portion 32 and the outer diameter of the fourth deflecting portion 101d are larger than the inner diameter of the center through hole 41 of the support member 4.
  • the outer diameter of the third deflecting portion 101c may also be set smaller than the inner diameter of the center through hole 41, so that the third structure 100c can pass through the center through hole 41 without any trouble.
  • the third deflecting portion 101c of the third structure 100c easily passes through the shoulder portion 32 provided in the inner hole 31 of the hub 3 by being freely deflected in a direction away from the third blocking portion 103c, the fourth structure 100d
  • the fourth deflecting portion 101d easily passes through the center through hole 41 of the support member 4 by being freely deflected in a direction away from the fourth blocking portion 103d.
  • the fourth sheet member 101d of the fourth structure 100d is deflected toward the fourth blocking portion 103d, and the fourth sheet member 101d can only be slightly deflected due to the restriction of the fourth blocking portion 103d.
  • a downward pulling force is applied to the support member 4 to disengage the support member 4 from the syringe 2.
  • the third deflecting portion 101c abutting against the third blocking portion 103c pulls the hub 3 back into the barrel 2 through the shoulder portion 32.
  • the process resistance of the head 5 of the core rod 1 through the center through hole 41 and the shoulder portion 32 of the support member 4 is small, so that the operator operates very well. Freely, the whole process is more stable, reducing the discomfort of the person being injected.
  • the structure 100 according to the present invention can in turn be disposed on the inner wall of the barrel 2, and a shoulder portion can be provided on the core rod 1 to achieve The lock between the core rod 1 and the syringe 2; the structure 100 according to the invention can also be reversely arranged on the central through hole 31 of the needle holder 3, and the shoulder of the core rod 1 can be fitted a portion for retracting the core rod 1 to the needle holder 3.
  • Figure 15 shows an embodiment in which the structure 100 is placed on the inside of the barrel 2.
  • the upper or lower direction as referred to in the present application refers to the direction of the needle or the mandrel handle of the disposable syringe, respectively;
  • the outer diameter of the deflecting portion or the blocking portion refers to the maximum length in the lateral direction when deflected When the portion or the blocking portion is circular, the outer diameter is its diameter.
  • the inner diameter of the central through hole or shoulder is the maximum length of the space defined by the central through hole or the shoulder in the lateral direction, and the inner diameter when the space defined by the central through hole or the shoulder is circular It is its diameter.

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  • 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

La présente invention concerne une structure destinée à être utilisée dans un injecteur jetable et l'injecteur jetable utilisant la structure. La structure comprend une partie de déflection (101 et 101a-d), une partie de blocage (103 et 103a-d), et une partie de connexion (102) connectant la partie de déflection (101 et 101a-d) à la partie de blocage (103 et 103a-d). La partie de déflection (101 et 101a-d) est capable de dévier en direction ou à l'opposé de la partie de blocage (103 et 103a-d). Lorsque la partie de déflection (101 et 101a-d) est déviée en direction de la partie de blocage (103 et 103a-d), la partie de déflection (101 et 101a-d) s'incline sur la partie de blocage (103 et 103a-d). La structure peut non seulement être utilisée pour retirer une aiguille de l'injecteur jetable, mais aussi pour le blocage entre une seringue et une tige centrale, et permet en même temps une plus grande facilité et une plus grande stabilité de l'opération d'injection.
PCT/CN2012/072527 2011-03-18 2012-03-19 Structure destinée à être utilisée dans un injecteur jetable et injecteur jetable WO2012126342A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201110066021.X 2011-03-18
CN201110066021 2011-03-18
CN201110299152 2011-09-29
CN201110299152.2 2011-09-29
CN201110411289 2011-12-12
CN201120515923 2011-12-12
CN201110411289.2 2011-12-12
CN201120515923.2 2011-12-12

Publications (1)

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WO2012126342A1 true WO2012126342A1 (fr) 2012-09-27

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PCT/CN2012/072527 WO2012126342A1 (fr) 2011-03-18 2012-03-19 Structure destinée à être utilisée dans un injecteur jetable et injecteur jetable
PCT/CN2012/072526 WO2012126341A1 (fr) 2011-03-18 2012-03-19 Injecteur jetable

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WO (2) WO2012126342A1 (fr)

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CN109107825A (zh) * 2018-11-07 2019-01-01 无锡商业职业技术学院 一种点胶针筒的加热组件

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CN108392696A (zh) * 2018-04-09 2018-08-14 哈工大机器人（合肥）国际创新研究院 一种连续式注射装置

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US4781684A (en) * 1987-09-03 1988-11-01 Trenner Lewis E Single use disposable hypodermic syringe
CN1039184A (zh) * 1988-02-06 1990-01-31 李桑东 带有针头组件和针管锁紧组合体的改进的皮下注射器
US5267962A (en) * 1992-06-10 1993-12-07 Jenson Robert W Disposable hypodermic syringe with needle safe feature
CN2430170Y (zh) * 2000-06-21 2001-05-16 杨瑞利 一种一次性注射器
CN2936286Y (zh) * 2006-06-23 2007-08-22 陈惟 注射器
CN201492777U (zh) * 2009-09-22 2010-06-02 江振标 针尖可回缩安全注射器的针筒和芯杆卡锁结构
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109107825A (zh) * 2018-11-07 2019-01-01 无锡商业职业技术学院 一种点胶针筒的加热组件
CN109107825B (zh) * 2018-11-07 2023-06-23 无锡商业职业技术学院 一种点胶针筒的加热组件

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WO2012126341A1 (fr) 2012-09-27
CN202844270U (zh) 2013-04-03

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