WO2015192485A1 - Seringue de sécurité rétractable ayant une aiguille pouvant être changée - Google Patents

Seringue de sécurité rétractable ayant une aiguille pouvant être changée Download PDF

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Publication number
WO2015192485A1
WO2015192485A1 PCT/CN2014/086029 CN2014086029W WO2015192485A1 WO 2015192485 A1 WO2015192485 A1 WO 2015192485A1 CN 2014086029 W CN2014086029 W CN 2014086029W WO 2015192485 A1 WO2015192485 A1 WO 2015192485A1
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WO
WIPO (PCT)
Prior art keywords
needle
slider
buckle
pusher
liquid
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PCT/CN2014/086029
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English (en)
Chinese (zh)
Inventor
杨育和
Original Assignee
杨育和
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Publication of WO2015192485A1 publication Critical patent/WO2015192485A1/fr

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    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a self-destructing safety syringe, and more particularly to a replaceable needle retractable safety syringe.
  • Syringe is one of the most basic medical devices. In order to reduce the spread of blood-borne diseases in patients, countries around the world, including China, have enacted legislation to force the use of disposable syringes. However, the common disposable syringes are generally reusable and have no safety devices, and the needles are exposed after injection. On the one hand, they are easily used by criminals or drug addicts, and on the other hand, syringes that can only be used once. Repeated use can easily cause virus transmission and cross infection.
  • the needles In order to prevent the use of disposable syringes, the needles stab the medical staff during the collection and treatment process, resulting in the infection of hepatitis B, hepatitis C and AIDS, which has caused the infection of medical staff.
  • All countries in the world are researching and promoting the use of self-destructing safety syringes.
  • the currently known self-destructing safety syringes are mainly piston piercing or manual pull type with a needle, and there is also an automatic spring at the needle seat.
  • U.S. Patent Application Serial No. 6,572, 584, B1 discloses an automatic retraction device syringe that allows the needle tube and the needle to be automatically retracted into the push barrel.
  • the main purpose of the structure is to prevent the needle from being exposed and to achieve a safety effect, but the inventor has not I can think of two serious flaws in the design of the structure:
  • the Chinese Patent No. CN200980874Y discloses a self-destructing safety syringe which can automatically retract the needle holder together with the needle to the push barrel by providing an automatic retracting device in the push barrel.
  • the invention fails to completely solve the problem of how to compress the compression spring in the lower part of the push cylinder before use (the inner wall of the push cylinder is smooth and there is no object to buckle, and the compression spring cannot be fastened and compressed), and the remaining after the interference is not solved. How liquids pass through.
  • Adoption a biasing member of a spring (7) surrounding the crotch portion of the connecting rod (67).
  • the spring (7) has an upper end (71) that engages the end wall of the top (543) of the push rod, and the spring has a lower end opposite the upper end, the lower end (72) is embedded by the biasing member and locked in the brake In the groove (81);
  • the starting portion has a propelling end (83) that moves with the puncture (62) end of the connecting rod and pulls the end (89).
  • the coupling shaft (61) end of the connecting rod is pressed, it is disengaged from the outer ring abutment region (66), and once the spring (7) pushes the end (83) with the puncture (62) end moving downward, the trailing end (89)
  • the lower end (72) of the spring (7) can be pulled out of the brake groove (82);
  • Washer The gasket is placed to bring the convex ring (417) to the rear cavity (234) of the outer casing and the rear cavity front (221).
  • the formation of the washer (3) provides a resistance that supports the positioning of the collar (417) to prevent movement at a certain position of the posterior chamber rim (221) during a subcutaneous or intravenous puncture. This allows the collar (417) to be disengaged from a portion of the rear chamber (221) of the syringe such that when the first external force is applied, the tubular needle position (41) can be moved along the inner wall (230) of the outer sleeve;
  • U.S. Patent Application Publication No. 5,211, 628 A discloses a syringe with an automatic retraction device that employs a spring biasing member that surrounds the crotch portion of the connecting rod and that has a spring that engages the top end wall of the push rod The upper end also has a lower end that is inserted through the biasing member and locked in the brake groove; in addition, the actuating portion has a pusher end that moves with the piercing end of the connecting rod.
  • the syringe also has some drawbacks: when the minimum position of the carding mechanism is excessive with the maximum position of the needle seat, the remaining liquid is sealed and cannot be circulated, and if the pressure is increased, the push rod is redirected. Before the advancement, the needle piercing the subcutaneous muscle will vibrate, causing pain to the patient receiving the injection.
  • Chinese Patent No. CN2817873Y also discloses a self-destructing safety syringe which uses a steel needle rebounding device and is placed in an outer needle seat, assembled into a needle assembly, and then screwed to the syringe.
  • the top part not only has the characteristics of ordinary steel needle rebounding disposable syringe, but also has the advantages of simple production process and convenient assembly, but it still cannot solve the resistance problem of the end plug, and the ball design at the front end of the end plug also increases the liquid residue. the amount.
  • the object of the present invention is to overcome the above patent deficiencies and it is not easy to think of or to be able to fully overcome these prior art.
  • the deficiencies and the like based on a self-destructing safety syringe of the patent number ZL200810096785.1 include improvement of defects.
  • the fixed needle including the safety syringe is improved to a replaceable needle type retractable safety syringe, and can be arranged on a replaceable needle type safety syringe according to the ISO standard needle of the existing market, which can be arbitrarily selected by the user. This is very convenient for the user, and also saves the user a monetary expense. It is equipped with a standard needle for ISO assembly on a replaceable needle-type safety syringe.
  • the taper head (2) and the slider (13) together with the standard needle are locked in the push-pull (11) and locked in the rear plug (22).
  • Bump (23) to ensure that the needle is not exposed, to ensure the safety of the nurse, to prevent the exposure of the needle to the society, resulting in the spread of hepatitis B, hepatitis C, AIDS, to achieve needle exchange, with a standard needle (27) can also retract After the needle (11) is reached, the needle is not exposed, and the needle is retracted, and the liquid flows into the human body through the liquid-passing hole (30) of the taper head (2).
  • the utility model relates to a replaceable needle type retracting safety syringe, which comprises a jacket (1), a taper head (2), a pusher cylinder (11), a first liquid retaining ring (25), a slider (13), a spring (16),
  • the rear plug (22) and the second liquid retaining ring (7) are technically based on:
  • the needle-type safety syringe After the needle-type safety syringe is used, the needle is automatically retracted to the rear end (24) in the pusher cylinder (11), and locked to the bump (23) of the rear plug (22), so that the needle is not exposed.
  • the needle To protect the personal safety of the nurse, to prevent the exposure of the needle sharp weapon and endanger the personal safety; to set the cavity (6) at the front end of the outer casing (1), to install the taper head (2) and to install the second liquid-proof ring (7).
  • the inner diameter of the second liquid-repellent ring (7) is slidably matched with the outer diameter (26) of the taper head (2), and the outer diameter of the second liquid-repellent ring (7) is slidably matched with the inner diameter of the cavity (6), and the cavity (6)
  • the outer diameter is matched with the inner diameter of the sheath (8) to prevent air bacteria from intruding into the taper head (2) and the needle, and when in use pushes the top end of the pusher (11) (32) to the second liquid-proof ring (7) Advancing toward the front end of the cavity (6), the second liquid-proof ring (7) is disengaged from the taper head (2), so that the taper head (2) is not constrained by any object, and the inner diameter of the pusher (11) is set at the upper end (21)
  • the structure is provided with a taper interference fit, and once gently reacted, the step (20) of the slider (13) is safely disengaged from the inner diameter
  • the push cylinder (11) is further provided with a rear end (24) and a first step (36) and a second step (37) of the rear plug (22) to tightly cooperate to prevent the use of falling, when When the nurse uses the pusher (11), the first plane (28) of the slider (13) mounted on the front end (17) of the pusher (11) is automatically mounted to the cavity (6) of the outer casing (1).
  • the second plane (29) of the inner taper head (2) is in contact with each other to form a reaction force, and at the same time, the sheet mushroom type (5) of the slider (13) and the convex ring of the taper head (2) are forced.
  • the front end of the outer casing (1) is provided with the cavity (6)
  • the top surface of the cavity (6) is provided with a circular hole (35)
  • the circular hole (35) is also provided with a circular hole convex block (40)
  • a standard needle is installed ( 27)
  • the outer convex ring (33) is locked to the circular hole projection (40) to ensure that the inner diameter (42) of the standard needle (27) is 6:100 and the front end of the tapered head (2) (3) 6:100 is mutually interference. Achieve the locking effect.
  • a taper head (2) is installed in the cavity (6) of the outer casing (1), and a second liquid retaining ring (7), a second liquid retaining ring (7) and a cavity of the outer casing (1) are also installed in the cavity (6).
  • the lower end of the casing (1) cavity (6) is also provided with a resistance ring (41) to prevent the subcutaneous needle from being pushed back by the force needle seat, providing safety assurance and also setting the outer diameter (10)
  • An interference fit with the inner diameter (9) of the sheath (8) prevents the bacteria from intruding through the liquid passage hole (30) of the taper head (2), and one of the prominent points of the present invention.
  • the front end of the taper head (2) is set to taper 6:100 (3) and the inner diameter of the standard needle (27) is 6:100.
  • the rear end of the taper head (2) is provided with a convex buckle (4) and a slider (13).
  • the front end of the mushroom-shaped (5) interference tight buckle, the tapered head (2) is also provided with an outer diameter (26) and an inner diameter of the second liquid-proof ring (7), and is placed at the top of the tapered head (2)
  • Through the liquid hole (30) when the slider (13) is under the action of the elastic force, the slider (13) is pushed together with the taper head (2) into the protrusion of the pusher (11) and locked to the rear plug (22). (23), while the liquid of the syringe flows in through the liquid passing hole (30) of the taper head (2)
  • the human body is one of the prominent points of the present invention.
  • the front end (17) of the push cylinder (11) is provided with a buckle (12) or a point buckle (18), and the front end (17) of the push cylinder (11) is further provided with a slider (13) including a spring (16).
  • the buckle (12) or the point buckle (18) is mainly buckled on the pusher (11), and the slider (13) of the front end (17) includes a spring (16) to position the spring (16) before use.
  • the upper end of the push cylinder (11) is further provided with a groove (31), the groove (31) is mounted with the first liquid-proof ring (25), the inner diameter of the first liquid-proof ring (25) and the outer casing (1) (38)
  • the sliding fit, the upper end of the push cylinder (11) is also provided with an inner diameter (21), the slider (13) is mounted, and the step (20) of the slider (13) is interference-fitted, and the pusher (11) is also provided with a rear end ( 24) a second level interference fit with the first step (36) and the second step (37) of the back plug (22) to prevent the back plug (22) from falling down easily, exposing the needle, causing a stab wound to the human body and endangering the society.
  • the front end of the slider (13) is provided with a sheet mushroom type (5); the sheet mushroom type (5) is further provided with a groove body (39) formed in a sheet shape, and a rear end of the slider (13) is provided with a T type (14).
  • the slider (13) is further provided with a center hole (34), and the T-shaped (14) of the slider (13) is mounted on the buckle (12) of the pusher (11) or the front end (17) of the point buckle (18).
  • the spring (16) is mainly compressed and positioned to form a static pressure.
  • the second plane (29) of (2) is connected to the interference, forcing the T-shaped (14) of the slider (13) to push the buckle (12) or the point buckle (18) of the cylinder (11) more than
  • the static pressure spring (16) exerts its elasticity to spring the slider (13) and the taper head (2) together with the standard needle (27) into the push cylinder (11), and the interference locks the rear plug (22).
  • the bump (23) realizes that the needle is not exposed, and one of the prominent points of the present invention.
  • the rear plug (22) center setting lug (23) is installed at the rear end (24) of the push cylinder (11), and the outer diameter of the rear plug (22) is set to a second step, that is, the first step (36) and the The two steps (37) are over-tightened with the rear end (24) of the push cylinder (11), and the step of the slider (13) mounted on the upper end of the push cylinder (11) when the push cylinder (11) is advanced forward ( 20) Pressing the inner diameter (21) of the pusher (11), and sliding the slider (13) together with the taper head (2) with the standard needle (27) into the projection of the locking and rear plug (22) ( 23), to prevent artificial force to open, resulting in the needle out of the dew, hurt personal safety, one of the prominent points of the present invention.
  • the sheath (8) is provided with an inner diameter (9) and an outer diameter (10) of the outer casing (6) of the outer casing (1).
  • the sliding sleeve is tightly fitted to prevent air bacteria from intruding into the tapered head (2) and the standard needle (27). ).
  • the technical solution of the invention is particularly to highlight the technical structure design of the interchangeable needle type automatic retracting type, to prevent the nurse from being stabbed by the sharp needle during use or after use, thereby realizing the protection of the nurse's personal safety from hepatitis B and hepatitis C,
  • the core of the structural design is that the first plane (28) of the slider (13) automatically intersects the second plane (29) of the taper head (2), while forcing the slider
  • the sheet mushroom type (5) of (13) is interference with the convex buckle (4) of the taper head (2), and the step (20) of the slider (13) is separated from the inner diameter of the pusher cylinder (11) (21)
  • the T-shaped (14) of the slider (13) passes over the buckle (12) or the point buckle (18) of the pusher (11), while the spring (16) exerts its elasticity while the slider (13)
  • a product from the invention to the authorization, the product accessories are also suitable for mold production, whether the mold structure of the accessory can be demoulded, whether the various accessories are suitable for automated or semi-automated equipment assembly, and whether the product is suitable for marketization, and the product of the invention
  • the structural design overcomes the above defects, the outer casing, the sheath, the taper head, the push cylinder, the first liquid retaining ring, the slider, the spring, the rear plug, and the second liquid retaining ring fitting overcome the mold making and the mold structure demoulding Until the automatic production, the realization of unmanned assembly, and the reduction of personnel pollution to the product, these technical elements overcome the three major elements in the application of the invention, namely: invention, conversion production, marketization.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a slider and a tapered headband retracting and locking to a rear plug according to an embodiment of the present invention
  • FIG. 3 is a schematic partial enlarged structural view of an embodiment of the present invention.
  • FIG. 4 is a schematic view showing an enlarged structure of a jacket according to an embodiment of the present invention.
  • FIG. 4a is a schematic enlarged plan view of the embodiment of FIG. 4 according to an embodiment of the present invention.
  • Figure 5 is a schematic view showing the structure of a tapered head according to the present invention.
  • FIG. 6 is a schematic structural view of a second liquid-repellent ring according to the present invention.
  • Figure 7 is a schematic view showing the structure of a sheath of the present invention.
  • FIG. 8 is a schematic structural view of a buckle of a push barrel according to an embodiment of the present invention.
  • FIG. 8a is a schematic structural view of a point buckle according to an embodiment of the present invention.
  • Figure 9 is a schematic view showing the structure of the plug according to the present invention.
  • Figure 10 is a schematic structural view of a slider according to the present invention.
  • Figure 11 is a schematic view showing the structure of a first liquid-repellent ring according to the present invention.
  • Figure 12 is a schematic view showing the structure of a spring according to the present invention.
  • Figure 13 is a schematic view showing the structure of a standard needle according to the present invention.
  • the replaceable needle retractable safety syringe shown in FIG. 1 , FIG. 2 and FIG. 3 includes a jacket 1 and a taper head 2 .
  • the needle-type safety syringe is used, the needle is automatically retracted to the rear end 24 of the push cylinder 11 and locked to the protrusion 23 of the rear plug 22 to ensure that the needle is not exposed and protected.
  • the nurse's personal safety to prevent the needle weapon exposed, harming personal safety;
  • the front end of the outer casing 1 is provided with a cavity 6, the cavity 6 is mounted with a taper head 2 and the second liquid-proof ring 7 is installed, and the inner diameter of the second liquid-proof ring 7 is tapered with the head 2
  • the outer diameter 26 is slidably engaged, and the outer diameter of the second liquid-repellent ring 7 is slidably engaged with the inner diameter of the cavity 6.
  • the top end 32 of the pusher cylinder 11 advances the second liquid-repellent ring 7 toward the front end of the cavity 6, thereby achieving taper.
  • the head 2 is disengaged from the second liquid-repellent ring 7, so that the taper head 2 is not restrained by any object, and the inner diameter 21 and the step 20 of the slider 13 are disposed at the upper end of the push cylinder 11.
  • the interference fit, the structure is provided with a taper interference fit.
  • the step 20 of the slider 13 is safely disengaged from the inner diameter 21 of the push cylinder 11, and the front end of the push cylinder 11 is also provided with a buckle 12 or a point buckle 18,
  • the restraining spring 16 is positioned with the slider 13 and is not released by the elastic force, so as to achieve the elastic force release requirement in use.
  • the push cylinder 11 further includes a first step 36 and a second step 37 of the rear end 24 and the rear plug 22 .
  • the slider 13 includes a spring 16 mounted on the front end 17 of the buckle 12 of the push cylinder 11 or the point buckle 18, as shown in FIG. 2 .
  • the first plane 28 of the slider 13 mounted on the front end 17 of the pusher 11 is automatically brought into contact with the second plane 29 of the taper head 2 mounted in the cavity 6 of the outer casing 1.
  • the sharp stab wounds of the sharp weapon lead to infection of AIDS, hepatitis B, hepatitis C and other diseases. It is a prominent point of the present invention that the protection of the nurse's personal safety and the elimination of the use of the syringe are harmful to the society due to the exposure of the needle weapon.
  • the front end of the outer casing 1 is provided with a cavity 6, the top surface of the cavity 6 is provided with a circular hole 35, the circular hole 35 is also provided with a circular hole projection 40, and the outer convex ring 33 of the standard needle 27 is locked.
  • the round hole projection 40 ensures that the 6:100 of the inner diameter 42 of the standard needle 27 and the 6:100 of the front end 3 of the taper head 2 are mutually interferenced to achieve a locking effect.
  • the cavity 6 of the outer casing 1 is provided with a taper head 2, and the cavity 6 is also provided with a second liquid-proof ring 7, and the second liquid-repellent ring 7 is in interference with the cavity 6 of the outer casing 1 to prevent liquid leakage;
  • the lower end of the body 6 is further provided with a resistance ring 41 to prevent the subcutaneous needle from being retracted by the forceful needle seat, providing a safety guarantee, and also providing an outer diameter 10 and an inner diameter 9 of the sheath 8 for an interference sliding fit to prevent the through hole 30 of the taper head 2 Bacterial invasion is one of the prominent points of the present invention.
  • the front end of the taper head 2 is set to have a taper of 6:100 and the inner diameter of the standard needle 27 is 6:100, and the rear end of the taper head 2 is provided with a convex buckle 4 and a sheet-like mushroom type 5 interference buckle at the front end of the slider 13, the taper head 2 is further provided with an outer diameter 26 and an inner diameter interference fit of the second liquid-repellent ring 7, and a liquid-passing hole 30 is provided at the top end of the taper head 2, when the slider 13 under the action of the elastic force, the slider 13 is pushed together with the taper head 2 into the protrusion 23 of the push barrel 11 and locked to the rear plug 22, while the liquid of the syringe flows into the human body through the liquid passage hole 30 of the taper head 2, the present invention One of the highlights.
  • the front end 17 of the push cylinder 11 is provided with a buckle 12 or a point buckle 18, and the front end 17 of the push cylinder 11 is further provided with a slider 13 including a spring 16, a buckle 12 or a point type.
  • the buckle 18 is mainly buckled on the pusher cylinder 11.
  • the slider 13 of the front end 17 includes a spring 16 for positioning, so that the spring 16 forms a static pressure state before use; the upper end of the push cylinder 11 is further provided with a groove 31, and the groove 31 is mounted first.
  • the liquid-repellent ring 25, the first liquid-proof ring 25 is slidably engaged with the inner diameter 38 of the outer casing 1, and the inner diameter 21 is further disposed at the upper end of the push cylinder 11, and the slider 13 is mounted to cooperate with the step 20 of the slider 13, and the push-tube 11 is further
  • the rear end 24 and the first step 36 and the second step 37 of the rear plug 22 are provided with a second-level interference fit to prevent the back plug 22 from falling down, exposing the needle, causing a stab wound to the human body and endangering the society.
  • the front end of the slider 13 is provided with a sheet mushroom type 5; the sheet mushroom type 5 is further provided with a groove 39 formed in a sheet shape, a rear end of the slider 13 is provided with a T shape 14, and the slider 13 is also provided.
  • the central hole 34, the T-shaped 14 of the slider 13 is mounted on the buckle 12 of the push cylinder 11 or the front end 17 of the point buckle 18, and mainly compresses and positions the spring 16 to form a static pressure.
  • the push cylinder 11 When the push cylinder 11 advances, it is installed at The first plane 28 of the slider 13 of the front end 17 of the push cylinder 11 is in contact with the second plane 29 of the taper head 2, forcing the T-shaped 14 of the slider 13 to push the buckle 12 or the point buckle of the push cylinder 11 18. At the same time, the static pressure spring 16 exerts its elasticity, and the slider 13 and the taper head 2 are brought into the push cylinder 11 together with the standard needle 27, and the bumps 23 of the back plug 22 are locked by the interference, so that the needle is not exposed.
  • One of the prominent points of the present invention One of the prominent points of the present invention.
  • the centrally disposed projection 23 of the rear plug 22 is mounted on the rear end 24 of the push cylinder 11, and the outer diameter of the rear plug 22 is provided with two steps, that is, the first step 36 and the second step 37 are pushed.
  • the rear end 24 of the barrel 11 is over-tightened.
  • the head 2 is accompanied by a standard needle 27 to be elastically engaged with the projection 23 of the locking and rear plug 22 to prevent the artificial forced pull-out, resulting in the needle being detached from the dew, thereby damaging the personal safety, and one of the prominent points of the present invention.
  • the sheath 8 is provided with an inner diameter 9 and an outer diameter 10 of the cavity 6 of the outer casing 1 which is excessively slidably sleeved to prevent air bacteria from intruding into the tapered head 2 and the standard needle 27.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (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

L'invention concerne une seringue de sécurité rétractable qui est pourvue d'une aiguille pouvant être changée et qui comporte un manchon externe (1), un manchon de protection (8), une tête conique (2), un tube de poussée (11), un premier joint d'étanchéité (25), un coulisseau (13), un ressort (16), un bouchon arrière (22) et un second joint d'étanchéité (7). La présente invention utilise des données physiques scientifiques lors de la conception et présente un loquet de verrou et des structures d'interférence et de séparation de chaque partie de la seringue de sécurité rétractable, pourvue d'une aiguille pouvant être changée, ce qui permet à l'aiguille d'être changée et rétractée dans le tube de poussée, empêchant ainsi l'aiguille d'être exposée après son utilisation, facilitant une manipulation à une seule main par une infirmière, et évitant de piquer l'infirmière et de propager des sources de maladie infectieuse ou un danger dans la société provoqué par une aiguille exposée.
PCT/CN2014/086029 2014-06-19 2014-09-05 Seringue de sécurité rétractable ayant une aiguille pouvant être changée WO2015192485A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410277213.9A CN104027874A (zh) 2014-06-19 2014-06-19 一种可换针头式回缩型安全注射器
CN201410277213.9 2014-06-19

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Publication Number Publication Date
WO2015192485A1 true WO2015192485A1 (fr) 2015-12-23

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CN (1) CN104027874A (fr)
WO (1) WO2015192485A1 (fr)

Cited By (2)

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CN108211051A (zh) * 2018-01-08 2018-06-29 杨德怡 一种可换针头式回缩型安全注射器
CN110251395A (zh) * 2019-07-23 2019-09-20 四川普瑞斯生物科技有限公司 一种医用安全型自回缩穿刺针

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Publication number Priority date Publication date Assignee Title
CN105709309A (zh) * 2016-01-06 2016-06-29 徐昊华 一种智能型安全注射器
CN109303954A (zh) * 2017-07-27 2019-02-05 刘期全 注射器结构
CN108014397B (zh) * 2017-12-07 2019-08-30 杨德怡 注射器
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