WO2012152207A1 - Dispositif d'aiguille de sécurité - Google Patents

Dispositif d'aiguille de sécurité Download PDF

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Publication number
WO2012152207A1
WO2012152207A1 PCT/CN2012/075137 CN2012075137W WO2012152207A1 WO 2012152207 A1 WO2012152207 A1 WO 2012152207A1 CN 2012075137 W CN2012075137 W CN 2012075137W WO 2012152207 A1 WO2012152207 A1 WO 2012152207A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
arm
hook
protective
guard
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/CN2012/075137
Other languages
English (en)
Chinese (zh)
Inventor
林作钱
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.)
SHANGHAI SOL-MILLENNIUM MEDICAL PRODUCTS Co Ltd
Original Assignee
SHANGHAI SOL-MILLENNIUM MEDICAL PRODUCTS 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 SHANGHAI SOL-MILLENNIUM MEDICAL PRODUCTS Co Ltd filed Critical SHANGHAI SOL-MILLENNIUM MEDICAL PRODUCTS Co Ltd
Publication of WO2012152207A1 publication Critical patent/WO2012152207A1/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
    • A61M5/3216—Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
    • 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
    • A61M5/3216—Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
    • A61M2005/3217—Means to impede repositioning of protection cap from needle covering to needle uncovering position, e.g. catch mechanisms

Definitions

  • This invention relates to a safety needle assembly, and more particularly to a safety needle assembly capable of preventing accidental puncture of a needle used in a medical device such as a syringe or a blood collection device after use. Background technique
  • medical devices with sharp needles are used extensively, such as syringes, blood collection devices, and the like.
  • These medical devices are not only used and handled by professionals in medical institutions, but are also often used and handled by non-professionals in the home, such as diabetic patients who inject insulin on their own.
  • the medical device such as a syringe is exposed to the outside after use, it is easy to stab the relevant person and cause great difficulty in the collection process. This stab wound can also cause infections.
  • a safety needle assembly which not only prevents accidental puncture of a medical instrument such as a syringe with a needle and a blood collection device after use, but also has a simple structure and a low cost.
  • the needle includes a needle hub and a needle mounted on the needle hub.
  • the needle guard includes a guard arm and a mounting portion formed with an opening on one side.
  • the mounting portion includes a first end coupled to the hub, a second end coupled to the guard arm, and a connecting portion extending between the first end and the second end.
  • the second end is coupled to the guard arm by a dumpling member such that the guard arm is rotatable about the dump chain member.
  • the guard arm is rotatable to a guard position in which the needle passes through the opening into the interior of the guard arm.
  • the guard further includes a first engaging member formed on the hub and/or the mounting portion and a second engaging member formed on the guard arm. When said The second engaging member is engaged with the first engaging member when the protective arm is in the protective position.
  • the first end of the hub and the mounting portion is configured to prevent relative movement of the first end of the hub and the mounting portion in the axial and circumferential directions.
  • the mounting portion may include a cylindrical portion at the first end, and a pin hole formed in the cylindrical portion, the needle holder being mountable in the needle seat hole.
  • a convex-concave structure capable of preventing the needle holder and the needle seat hole from moving in the axial direction and the circumferential direction is formed between the needle seat and the needle hole.
  • the safety needle assembly further includes a retaining device.
  • the retaining device may include a first protrusion extending from the connecting portion toward a side of the guard arm and a second protrusion on the guard arm, the first protrusion and the second protrusion being configured to be
  • the guard arm is engageable when rotated to a predetermined position to at least prevent the guard arm from rotating in one direction in a releasable manner.
  • the convex-concave structure may include: a circumferential four groove formed on any one of the needle seat hole and the needle seat and formed on the other of the needle seat hole and the needle seat, a circumferential protrusion engageable with the four slots; an axial groove formed on any one of the needle seat hole and the needle seat and formed in the needle seat hole and the needle seat An upper axial projection that is engageable with the axial groove.
  • the convex-concave structure may include a discontinuous four grooves formed on any one of the needle seat hole and the needle seat and formed on the other of the needle seat hole and the needle seat, and capable of The discontinuous groove of the discontinuous groove is engaged.
  • the retaining means includes a retaining arm extending from the connecting portion toward a side of the guard arm, the first projection being located at a free end of the retaining arm.
  • the second protrusion engages with the first protrusion when the guard arm is rotated to a packaging position proximate the needle to at least prevent the guard arm from rotating away from the needle in a releasable manner.
  • the retaining device may further include a third protrusion at a free end of the retaining arm and opposite the direction of the first protrusion.
  • a second protrusion on the guard arm engages with the third protrusion when the guard arm is rotated relative to the hub to a position away from the needle, and at least the guard arm is releasably prevented Rotate toward the needle.
  • the retaining means may further comprise a retaining arm extending from the guard arm toward the side of the hub, the second projection being formed at a free end of the retaining arm and substantially perpendicular to the retaining arm.
  • the second protrusion engages the first protrusion when the guard arm is located adjacent to the package position of the needle, and at least prevents the guard arm from rotating away from the needle in a releasable manner.
  • a third protrusion opposite to the second protrusion may be formed on the free end of the retaining arm, the third protrusion and the first when the guard arm is located away from the use position of the needle The projections engage to at least prevent the guard arm from rotating toward the needle in a releasable manner.
  • the first coupling member may include a pair of first hook members formed on both sides of the columnar portion or the needle seat
  • the second engaging member may include two formed on the guard arm a pair of second hook members on the side, the second hook member and the first hook member are engaged in a non-releasable manner when the guard arm is rotated to the protective position.
  • the first ""combining member may also include a tubular member extending from the cylindrical portion or the hub around the needle, and the second engaging member may include a portion located within the protective arm a hook member, wherein the hook member in the protective arm is hooked on the wall of the tubular member to engage with the tubular member in a non-retractable manner when the protective arm is in the protective position together.
  • the first engaging member may also include a card slot formed on the cylindrical portion or the outside of the needle seat, and the second engaging member may include a hook member located in the protective arm, when the protection When the arm is in the protective position, the hooks in the protective arm are hooked on the wall of the card slot to be engaged with the card slot in a non-releasable manner.
  • the first engaging member may also include at least one hook extending from the connecting portion substantially in a direction parallel to the needle, the second engaging member including at least one formed on the protective arm An opening on an end of the hub side, when the guard arm is in the protective position, a hook on the connecting portion extends into an opening in the guard arm and is connected to the opening The non-exitable way is stuck together.
  • the first engaging member includes at least one opening formed on the connecting portion
  • the second engaging member includes at least one end from the end of the protective arm toward the side of the needle holder a hook member extending from the needle seat, when the guard arm is in the protective position, the A hook on the arm guard extends into the opening in the connecting portion and snaps into engagement with the opening in a non-releasable manner.
  • the first-mechanical member may also include a pair of first hook members on both sides of the connecting portion, and the second engaging member may include two sides of the opening of the protective arm or located at a pair of second hook members on opposite sides of the end of the guard arm toward the side of the hub, the first hook and the second when the guard arm is in the guard position
  • the hooks snap together in a non-releasable manner.
  • the safety needle assembly of the present invention has a simple structure and can reliably house the needle inside the protection arm after use to prevent accidental puncture.
  • Figure 1 is a cross-sectional view of a safety needle assembly in accordance with a first embodiment of the present invention, wherein the guard arm is in a package position.
  • FIG. 2 is a cross-sectional view of the safety needle assembly of FIG. 1 with the guard arm in a position of use.
  • 3 is a cross-sectional view of the safety needle assembly of FIG. 1 with the guard arm in a protective position.
  • Figure 4 is a perspective view of the needle guard of Figure 1.
  • Figure 5 is a side elevational view of the needle guard of Figure 1.
  • Figure 6 is a top plan view of the needle guard of Figure 1.
  • Figure 7 is a bottom plan view of the needle guard of Figure 1.
  • Figure 8 is a cross-sectional view taken along line ⁇ - ⁇ in Figure 6.
  • Figure 9 is a cross-sectional view taken along line IX-IX of Figure 6.
  • Figure 10 is a cross-sectional view taken along X-X of Figure 6.
  • Figure 11 is an enlarged schematic view of the "A" portion of Figure 1.
  • Figure 12 is a perspective view of the hub of Figure 1.
  • Figure 13 is a perspective view of a safety needle assembly in accordance with a second embodiment of the present invention.
  • Figure 14 is a cross-sectional view of the safety needle assembly of Figure 13 .
  • Figure 15 is a cross-sectional view of the safety needle assembly of Figure 13 in a position of use.
  • Figure 16 is a cross-sectional view of the safety needle assembly of Figure 13 in a package position.
  • Figure 17 is a cross-sectional view of the safety needle assembly of Figure 13 in a protective position.
  • Figure 18 is a perspective view of a safety needle assembly in accordance with a third embodiment of the present invention.
  • Figure 19 is a perspective view of a safety needle assembly in accordance with a fourth embodiment of the present invention.
  • Figure 20 is a perspective view of a safety needle assembly in accordance with a fifth embodiment of the present invention.
  • Figure 21 is a perspective view of a safety needle assembly in accordance with a sixth embodiment of the present invention.
  • Figure 22 is a perspective view of a needle guard of a seventh embodiment of the present invention.
  • Figure 23 is a perspective view of a safety needle assembly according to a seventh embodiment of the present invention.
  • the safety needle assembly of the present invention includes a needle 10 and a needle guard 1.
  • the needle 10 includes a hub 12 and a needle 1 1 mounted on the hub 12;
  • the needle guard 1 includes a guard arm 6 and a mounting portion 2 on one side of which an opening 60 is formed.
  • the mounting portion 2 includes a first end (not shown) coupled to the hub 12, a second end (not shown) coupled to the guard arm 6, and a first end A connecting portion 24 extending between the second end and the second end.
  • the connecting portion 24 is coupled to the guard arm 6 at the second end by a hinge member 4, so that the guard arm 6 can be rotated about the hinge member 4.
  • injection needle 11 is also called
  • the needle 11 is fixed to the cone 14 of the barrel 15 through the hub 12.
  • 1 shows the state of the package before use of the product.
  • the needle cap 16 covers the needle 1 1
  • the guard arm 6 is located near the needle 1 1 (or the needle cap 16), that is, the package position.
  • Figure 2 shows the state of use of the product, at which point the needle cap 16 is removed and the guard arm 6 is rotated away from the needle 11 (or near the syringe 15), even if the position is used.
  • Fig. 3 shows the post-use state of the product, at which time the guard arm 6 is rotated to a position where the needle 11 is housed inside, i.e., the guard position.
  • the mounting portion 2 includes a cylindrical portion 20 at a first end, and the connecting portion 24 extends from one end of the cylindrical portion 20 toward the side of the guard arm 6.
  • a needle hole 21 is formed in the columnar portion 20.
  • the shape and size of the needle hole 21 mainly depends on the needle holder 12 of the needle 10, which is not limited in the present invention as long as the mounting portion 2 can be fixedly attached to the needle holder 12 through the needle seat hole 21.
  • the first end of the hub 12 and the mounting portion 2 is configured to prevent relative movement between the two in the axial and circumferential directions.
  • a convex-concave structure can be formed between the hub 12 and the hub bore 21, which prevents relative movement of the needle guard 1 relative to the hub 12 during use of the product, such as when a syringe is used for injection.
  • circumferential rotation and/or axial swaying prevents the needle guard 1 from interfering with and even jeopardizing normal medical procedures.
  • the convex-concave structure includes a circumferential projection 22 formed on the needle seat hole 21 (inner surface) and a circumferential groove 13 formed on the needle holder 12 (outer surface).
  • the circumferential projection 22 can be engaged in the circumferential groove 13.
  • the circumferential projection 22 and the circumferential groove 13 are formed substantially continuously on the needle seat hole 21 and the needle holder 12 in the circumferential direction, respectively, to prevent the shaft from occurring between the needle guard 1 and the needle holder 12. Instigated.
  • the convex-concave structure further includes an axial projection 23 formed on the needle hole 21 extending in the axial direction of the needle hole 21.
  • the axial projection 23 projects toward the axis of the needle seat hole 21.
  • the axial projections 23 may be plural as shown or only one. Four symmetrically disposed axial projections 23 are clearly shown in Fig. 4, but it is obvious that the invention is not limited thereto.
  • a axial groove 17 is formed on the outer surface of the hub 12, and the axial projection 23 can be caught in the axial groove 17 and can be axially grooved.
  • the inner portion 17 slides to prevent circumferential relative rotation between the needle guard 1 and the needle hub 21.
  • the axial projections 23 are first aligned with the axial recesses 17, the axial projections 23 are snapped into the axial recesses 17, and the needle guard 1 is then actuated The slide is guided by the axial projection 23 and the axial groove 17 until the circumferential projection 22 snaps into the circumferential groove 13.
  • the circumferential projection 22 may be formed on the needle
  • the seat 12 is upper (outer surface), and the circumferential groove 13 is correspondingly formed on the needle hole 21 (inner surface).
  • an axial projection 23 can be formed on the hub 12, and a corresponding axial recess 17 can be formed in the hub bore 21.
  • the circumferential groove 13 and the circumferential projections 22 may not be continuous, but may be discrete, shaped and/or sized pairs of convex and concave features formed along the opposing surfaces. , for example, two or more pairs.
  • the convex four-shaped structure formed by the circumferential groove and the circumferential protrusion can simultaneously perform the axial and circumferential positioning between the ten seat and the needle hole, and the axial protrusion 23 and the axial groove 17 can be omitted.
  • the circumferential grooves and projections may also be axial grooves and projections, oblique grooves and projections, and various combinations of grooves/protrusions. As long as it is not continuous.
  • the guard arm 6 is an arm-like structural member having a substantially U-shaped cross section, and includes a bottom guard wall 63 and a pair of side guard walls 61 extending from both sides of the bottom guard wall 63 toward the side of the mounting portion 2.
  • the bottom guard wall 63 and the pair of side guard walls 61 form the opening 60 of the guard arm 6, as shown in Figures 9 and 10.
  • the guard arm 6 can include two generally parallel first portions 68 and a second portion 69 that protrude more toward the side of the mounting portion 2 relative to the second portion 69, the two portions 68 And 69 are connected by a corner portion 67.
  • the bottom protective wall 63 may have a substantially planar shape or a curved shape; or as shown in FIGS. 9 and 10, a portion (for example, the first portion 68) of the bottom protective wall 63 is a curved surface, and another portion (for example, the second portion)
  • the bottom protective wall 63 of 69) is generally planar.
  • the side where the mounting portion is located means the side of the protective arm 6 facing the mounting portion 2 at the packaging position before use or the protective position after use, for example, Fig. 1, The left side of the drawing of 3; “the side away from the mounting portion (where)” refers to the side of the protective arm 6 opposite to the “facing side of the mounting portion". "Towards (or away from) the side of the guard arm (on the side)” is similar to the definition above, except that the object of discussion is the mounting portion 2 and the reference object is the guard arm 6.
  • the dumpling chain member 4 may include a pair of hinge members disposed on both sides of the bottom guard wall 63 of the guard arm 6 (or substantially in the extending direction of the pair of side guard walls 61).
  • the invention does not In order to design or improve the hinge structure, various hinge structures known in the art are contemplated for use in implementing the hinge member 4 of the present invention.
  • a hinge member formed of a weakened structure widely used in an injection molding process Preferably, the hinge member 4 is capable of holding the guard arm in one or some rotational position. More preferably, the weakened structure can function as a spring such that the guard arm can automatically turn to other positions after exceeding a rotational position that is held.
  • the needle guard 1 may further include a holding device 5.
  • the holding device 5 includes a first protrusion 51 extending from the connecting portion toward the side of the guard arm 6 and a second protrusion 52 located on the guard arm 6.
  • the first projection and the second projection are configured to be engageable when the guard arm is rotated to a predetermined position to at least prevent the guard arm 6 from rotating in one direction in a releasable manner.
  • the predetermined location can be any desired location, including but not limited to the packaging locations and usage locations described below.
  • the retaining device 5 includes a retaining arm 50 extending from the mounting portion 2 toward the side of the guard arm 6, a first projection 51 at the free end of the retaining arm 50, and a second projection 52 on the guard arm 6. .
  • the holding device 5 is located between the pair of hinge members 4, wherein the holding arm 50 of the holding device 5 is formed on the connecting portion 24, and the second protrusion 52 is formed on the bottom protective wall 63, Opposite the holding arm 50. As shown in FIG.
  • the second protrusion 52 is engaged with the first protrusion 51 to at least prevent the guard arm 6 from rotating in a direction away from the needle 11.
  • the engagement of the above two protrusions can also be achieved, and not only can the guard arm be prevented from rotating away from the needle, but also The rotation of the guard arm toward the needle 11 can be prevented. It is conceivable that the engagement between the two projections can also be achieved by a convex-concave fit, such as the engagement between the second projection and the third projection described below.
  • the retaining device 5 can also include a free end located on the retaining arm 50 and A protrusion 33 has a third protrusion 53 that is opposite in direction.
  • a recess 54 is formed on a side of the third protrusion 53 that is away from the first protrusion 51. As shown in FIG.
  • the second protrusion 52 on the guard arm 6 engages with the third protrusion 53 and projects into the recess 54, thus, the second The two ends of the projection 52 abut against the two sides of the recess 54, respectively, so that the guard arm 6 is held, thereby holding the guard arm 6 in the use position, and simultaneously preventing it from moving away from the needle and toward the needle, thereby preventing the guard arm from being The use of injections, etc., interferes with normal medical procedures during use. It is conceivable that the recess 54 is not necessary. As long as the third projection 53 and the second projection 52 are engaged to prevent the guard arm 6 from rotating toward the needle during use, the desired effect of the holding device can be achieved.
  • maintaining the guard arm in the predetermined position described above is a releasable retention that can be relieved by applying a greater force to the guard arm.
  • This can be achieved by designing the interacting structural members to be elastic.
  • the "arms" and “protrusions” are either a flexible cantilever structure and/or a resilient material.
  • This detachable retention can also be achieved by using chamfers or rounded corners on the parts that are in contact with each other to facilitate entry and exit.
  • the holding device can also have other implementations.
  • the positions of the first protrusions 51 and the second protrusions 52 can be interchanged. Referring to the second embodiment shown in Figures 13-17, particularly Figures 14 and 15.
  • the second protrusion 52 can be considered to protrude directly from the connecting portion toward the side of the guard arm; and the first protrusion 51 and the third protrusion 53 can be formed on the holding arm 50 projecting from the guard arm 6 toward the side of the needle holder 12. Free end.
  • the third projection 53 slightly protrudes to form a small recess (not shown). When the second projection 52 and the third projection 53 are engaged in the recess, it is possible to more effectively prevent at least the guard arm 6 from rotating in the direction of the needle (Fig. 15).
  • the third protrusion 53 is not necessary to prevent the guard arm from rotating toward the needle during use. As described above, as long as the second projection 52 is located on the rotational path of the hinge arm at the free end of the retaining arm, the second projection 52 can engage the free end of the retaining arm to prevent the guard arm from rotating toward the hub or needle. If the joint is also accompanied by deformation caused by mutual interference, the guard arm can be prevented from rotating away from the needle seat or the needle at the same time.
  • the protective arm 6 is from the use position shown in Figure 2.
  • the set is turned to the protective position.
  • the safety needle assembly of the present invention further includes a first engaging member formed on the hub and/or the mounting portion and formed in a second engaging member on the protective arm. The second engaging member is engaged with the first engaging member when the protective arm is in the protective position.
  • the hub 12 is mounted in the hub hole 21 of the columnar portion 20 at the first end of the mounting portion 2.
  • the first engaging member may include a pair of first hook members 7 formed on both sides of the columnar portion 20, and the second engaging member may include a guard arm formed on the protective arm A pair of second hook members 8 on both sides of the opening 60 of 6.
  • the guard arm is rotated to the guard position, the second hook and the first hook are preferably snapped in a non-releasable manner so that the guard arm 6 is permanently held in the guard position, thereby preventing the used product When used again, it can also prevent the protective arm from exposing the needle due to accidental disengagement due to external force.
  • the first hook member 7 and the second hook member 8 may be of a variety of structures known in the art that are capable of locking, securing or snapping the two portions together.
  • a pair of first hook members 7 extend tangentially symmetrically from the circumferential surface of the columnar portion 20 of the mounting portion 2, and are joined together by the connecting portion 24.
  • the first hook member 7 includes an extending portion 71 extending from the mounting portion 2 toward the side of the guard arm 6, a first wedge portion 72 extending obliquely from the free end of the extending portion 71 toward the mounting portion 2, and a facing installation at the wedge portion 72.
  • the first hook portion 73 is formed at the end of the portion 2. It should be understood that dividing the first hook member 7 into a plurality of components is merely a convenience in description, and these portions may be an inseparable whole.
  • the second hook member 8 can be divided into two portions: a second wedge portion 81 facing the side where the mounting portion 2 is located and a second hook portion 82 (see Fig. 4) away from the side where the mounting portion 2 is located.
  • the second wedge portion 81 passes over the first wedge portion 72 such that the second hook portion 82 and the first hook portion 73 are engaged in a non-releasable manner.
  • first hooks 7 may also be formed on both sides of the connecting portion 24, similar to the case of Figs.
  • the first end of the mounting portion 2 has no cylindrical portion, and the connecting portion 24 is formed integrally with the hub 12 through the first end.
  • the first engaging member includes a pair of first hook members 7 formed on both sides of the hub 12.
  • the first hook member 7 may extend substantially along the axial direction of the needle hub 12 or the direction of the needle on both sides of the needle hub 12 as shown in FIG. 20, or may be substantially along both sides of the needle hub 12 as shown in FIG. Extends perpendicular to the direction of the needle. "Generally along the direction of the needle” means that the first hook member 7 can extend in the same direction as the needle 1 1 or at a desired angle. Similarly, “substantially in a direction perpendicular to the needle” means that the first hook member 7 extends in a direction perpendicular to the needle 1 1 or at other desired angles.
  • the second engaging member may include a pair of second hook members 8 formed on both sides of the opening 60 of the guard arm 6, as shown in FIG. 20; or, the second engaging member may include a pair formed on the guard arm 6 A pair of second hook members 8 on both sides of the end of the needle hub 12.
  • a pair of first hook members 7 may be formed on both sides of the connecting portion 24 of the mounting portion 2; and a pair of second hook members 8 may be Correspondingly formed on both sides of the opening 60 of the guard arm 6 (Fig. 13), or on both sides of the end of the guard arm 6 toward the hub 12 (Fig. 19).
  • hooks may have the same structure as the hooks described with reference to Figures 4 and 6, and may have other configurations known in the art. It should be understood that the mutual position and orientation of the first hook member and the second jaw member may be designed such that when the guard arm 6 is rotated until the needle is received in its protective position, the two pairs of hook members are not retractable. The way to snap.
  • the "hook member” of the present invention refers to a shape-like hook-like configuration known to those skilled in the art; or
  • the end portion is formed with a protruding portion, and the surface of the protruding portion facing away from the end (for example, a flat surface or a curved surface, etc.) is recessed inwardly or substantially perpendicular to the main body to form a hook.
  • the present invention is not limited to the specific outer shape of the hook.
  • the first engaging member includes at least one (in the figure, two ⁇ -shaped connecting portions 24 are hooked members 93 extending in a direction substantially parallel to the needle
  • the second snap member includes respective at least one opening 94 formed in the end of the guard arm 6 toward the needle hub 12.
  • the hook member 93 extends into the opening 94 and snaps into engagement with the opening 94 in a non-releasable manner.
  • the positions of the hook member 93 and the opening 94 are interchangeable, i.e., the hook member 93 may be formed on the end of the guard arm 6 toward the needle hub 12, and the opening 94 may be formed on the joint portion 24.
  • the first engaging member may further include a cylindrical member 91 extending from the needle hub 12 around the needle 11, and a second engaging member A hook 92 located within the guard arm 6 can also be included.
  • the hook member 92 in the guard arm 6 is hooked on the wall of the tubular member 91 to be engaged with the tubular member 91 in a non-releasable manner.
  • the engagement of the hook member 92 and the tubular member 91 can be used with the non-releasable engagement of the pair of hook members 7 and 8 described above (as shown) or without the use of a pair of hook members. Used alone in the case of 7 and 8.
  • the above-described engagement structure of the tubular member and the hook member can also be applied to the case where the needle hub 12 shown in Figs. 1 to 12 is mounted in the columnar portion 20. At this time, the tubular member is formed to extend from the cylindrical portion around the needle.
  • Fig. 22 shows a needle guard assembly of a seventh embodiment of the present invention
  • Fig. 23 shows a safety needle assembly of a seventh embodiment of the present invention
  • the hub 12 is fixedly mounted in the hub receiving portion 97 of the front end of the barrel 15.
  • the seventh embodiment is similar to the first embodiment shown in Figs. 1 to 12 in that a columnar portion 96 is formed at the first end of the mounting portion.
  • the cylindrical portion 96 is sleeve-shaped and can be fixedly mounted on the barrel 15, such as the hub receiving portion 97, by means of a connection known in the art, such as a threaded coupling, a snap connection or a tapered fitting.
  • cylindrical portion 96 can also be fixed to the hub 12 or needle by means of a threaded, snap or tapered fit, etc., as is known in the art. Other positions of the barrel 15.
  • the seventh embodiment is similar to the embodiment shown in FIGS. 13 to 19, and includes a hook member 92 formed in the guard arm 6 as a second engaging member; however, the difference is that In Figs. 22 and 23, the first "" joint member is a card groove 95 formed outside the columnar portion 96.
  • the hook member 92 can be engaged with the card slot 95 in a non-releasable manner For example, as shown in FIG. 23, it is caught on the wall of the card slot 95.
  • the engagement of the hook member 92 with the card slot 95 is similar to the engagement of the hook member 92 and the cylindrical member 91 described above, and will not be described herein.
  • the card slot 95 shown in Figs. 22 and 23 replaces the cylindrical member 91.
  • the guard arm 6 may also include a third hook 64.
  • the third hook member 64 includes a pillar portion 641 extending from the bottom guard wall 63 toward the side of the mounting portion 2, and a hook portion 642 bent toward the bottom guard wall 63 at the free end of the pillar portion 641.
  • the hook portion 642 which is bent toward the bottom guard wall 63 can be easily guided into the hook portion 642 of the hook member 64 and is caught in the hook portion 642 in a non-releasable manner.
  • the guard arm 6 may further include a fourth hook member 65.
  • the fourth hook member 65 and the third hook member 64 have the same structure and are arranged along the extending direction of the guard arm 6 such that the hook portions of the fourth hook member 65 and the third hook member 64 are alternately opposed. This staggered relative layout facilitates more accurate guiding of the needle 1 .
  • the third and fourth hook members are cut out on the bottom guard wall 63, and then the hook member is raised toward the open side of the guard arm 6.
  • the above hooks thus, an opening is formed in the position of the bottom guard wall 63 opposite the hook portion of the hook member.
  • a pair of guide ribs 66 having a guide bevel at the upper end may be provided along the inner side of the pair of side guard walls 61. This arrangement is particularly advantageous for constraining the needle 1 to the position of the hooks 64, 65 and is therefore particularly suitable for situations where the needle 11 is bent after use.
  • the other end of the opposite end of the fourth end may also form an end guard wall 62 that connects the bottom guard wall 63 and the pair of side guard walls 61 together.
  • the end shield wall 62 provides further protection against the needle 11 that is caught in the hook member.
  • the needle guard 1 can be integrally formed by an injection molding process using a plastic material as The integrally injection molded part; or the protective arm 6 with the second protruding portion 52 of the holding device 5 and the mounting portion 2 with the other part of the holding device 5, respectively, and then the two are joined together by injection molding of the hinge member.
  • the protective arm structure of the invention does not need to use a mold with a slider during injection molding, simplifies the mold structure, greatly increases the number of mold cavities (for example, can reach 96 cavities), and is very advantageous for one injection molding by using a large mold. Obtaining a large number of molded products significantly reduces the production cost of the guard arm. Moreover, the protective arm structure of the present invention has a low mold opening requirement, which also facilitates simplification of the mold structure and reduces the manufacturing and use cost of the mold.
  • an anti-slip structure 9 is formed on the side of the bottom guard wall 63 on the side away from the mounting portion.
  • the anti-slip structure 9 may be a plurality of ribs as shown, or may be other non-slip resistant structures such as a rugged surface or a rough or friction coefficient sheet adhered to the surface of the bottom protective wall.
  • the anti-slip structure 9 may be formed on the bottom protective wall of the second portion 69 of the guard arm 6; it may also be formed on the corner portion 67 to become a non-slip corner.
  • the anti-slip structure is easy for the relevant person to grasp by hand to prevent accidental slippage.
  • the anti-slip structure especially the anti-slip angle, facilitates the arrangement of these medical devices and prevents mutual sliding between these medical devices.

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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 un dispositif d'aiguille de sécurité comprenant une tête d'aiguille (10) qui comprend un siège d'aiguille (12) et une aiguille (11) installée sur le siège d'aiguille (12), et un dispositif protecteur de la tête d'aiguille (1) comprenant un bras de protection (6) et une partie d'installation (2) ; de l'autre côté du bras de protection (6) se trouve une ouverture (60) solidairement connectée à la partie d'installation (2) de façon rotative par l'intermédiaire d'un élément charnière (4) ; le bras de protection (6), par rapport à la partie d'installation (2), est centré sur l'élément charnière (4) et pivote en position protectrice dans laquelle l'aiguille (11) entre à l'intérieur du bras protecteur (6) par l'intermédiaire de l'ouverture (60). Lorsque le bras protection (6), par rapport à la partie d'installation (2), pivote en position protectrice, une paire de premiers éléments d'enclenchement (7) situés des deux côtés de la partie d'installation (2) entrent en prise respectivement avec une paire de seconds éléments d'enclenchement (8) situés des deux côtés du bras de protection (6). Entre le siège de l'aiguille (12) et le trou du siège de l'aiguille (21) de la partie d'installation (2) est formée une structure convexe-concave pouvant empêcher tout déplacement circonférentiel et axial mutuel entre le siège de l'aiguille (12) et le trou du siège de l'aiguille (21). Non seulement le dispositif d'aiguille de sécurité peut prévenir les piqûres accidentelles après l'utilisation d'instruments médicaux tels qu'une seringue à injection avec tête d'aiguille et hemostix etc., mais il a également une structure simple et un faible coût.
PCT/CN2012/075137 2011-05-06 2012-05-07 Dispositif d'aiguille de sécurité Ceased WO2012152207A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110120309.0 2011-05-06
CN201110120309 2011-05-06

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WO2012152207A1 true WO2012152207A1 (fr) 2012-11-15

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WO (1) WO2012152207A1 (fr)

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WO2016198387A1 (fr) * 2015-06-08 2016-12-15 Becton Dickinson France Dispositif de sécurité destiné à prévenir une blessure par piqûre d'aiguille avec une aiguille d'un dispositif médical et dispositif médical
WO2017129968A3 (fr) * 2016-01-25 2017-09-14 Star Syringe Limited Dispositif de prévention contre les piqûres d'aiguille
JP2018507722A (ja) * 2015-03-19 2018-03-22 ベー・ブラウン・メルズンゲン・アクチエンゲゼルシャフトＢ．Ｂｒａｕｎ Ｍｅｌｓｕｎｇｅｎ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ ヒンジ式保護アセンブリ及び関連する方法
CN108577862A (zh) * 2017-12-15 2018-09-28 中南大学湘雅医院 一种采血器具及采用该采血器具的采血仪
US10639430B2 (en) 2010-11-22 2020-05-05 B. Braun Melsungen Ag Hinged shield assemblies and related methods
US12064609B2 (en) 2016-12-14 2024-08-20 Star Syringe Limited Needlestick prevention device

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CN102772840B (zh) * 2011-05-06 2016-06-29 上海萌黎国际贸易有限公司 安全针组件
CN104174098A (zh) * 2013-05-20 2014-12-03 上海康德莱企业发展集团股份有限公司 一种安全壳式注射器
CN103751889A (zh) * 2014-01-21 2014-04-30 淮安市恒春医疗器材有限公司 安全自毁式注射器
CN103908710A (zh) * 2014-03-26 2014-07-09 温州市贝普科技有限公司 一种安全注射器
CN106730172B (zh) * 2016-11-11 2023-05-23 贝普医疗科技股份有限公司 一种安全注射针
CN107737391A (zh) * 2017-11-08 2018-02-27 温州京环科技有限公司 安全式注射针
CN109875516B (zh) * 2019-03-29 2022-04-01 重庆金山医疗技术研究院有限公司 脱线式检测设备夹持装置
US20220305214A1 (en) * 2019-06-21 2022-09-29 Becton Dickinson France Safety Device for Preventing Needle Stick Injury with a Needle of a Medical Injection Device
CN111436951B (zh) * 2020-03-04 2023-05-23 天津华鸿科技股份有限公司 采血针
WO2022242838A1 (fr) * 2021-05-18 2022-11-24 Terumo Europe N.V. Ensemble aiguille de sécurité
CN114146260B (zh) * 2021-11-19 2025-06-13 上海倍莱弗科技有限公司 一种安全型针筒装置

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CN101687083A (zh) * 2007-02-26 2010-03-31 贝克顿·迪金森公司 具有铰接的针护套的注射器
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10639430B2 (en) 2010-11-22 2020-05-05 B. Braun Melsungen Ag Hinged shield assemblies and related methods
JP2018507722A (ja) * 2015-03-19 2018-03-22 ベー・ブラウン・メルズンゲン・アクチエンゲゼルシャフトＢ．Ｂｒａｕｎ Ｍｅｌｓｕｎｇｅｎ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ ヒンジ式保護アセンブリ及び関連する方法
US10617830B2 (en) 2015-03-19 2020-04-14 B. Braun Melsungen Ag Hinged shield assemblies and related methods
WO2016198387A1 (fr) * 2015-06-08 2016-12-15 Becton Dickinson France Dispositif de sécurité destiné à prévenir une blessure par piqûre d'aiguille avec une aiguille d'un dispositif médical et dispositif médical
US10569029B2 (en) 2015-06-08 2020-02-25 Becton Dickinson France Safety device for preventing needle stick injury with a needle of a medical device and medical device
AU2016274527B2 (en) * 2015-06-08 2021-02-18 Becton Dickinson France Safety device for preventing needle stick injury with a needle of a medical device and medical device
US11638787B2 (en) 2015-06-08 2023-05-02 Becton Dickinson France Safety device for preventing needle stick injury with a needle of a medical device and medical device
WO2017129968A3 (fr) * 2016-01-25 2017-09-14 Star Syringe Limited Dispositif de prévention contre les piqûres d'aiguille
TWI816639B (zh) * 2016-01-25 2023-10-01 英商星宿注射筒有限公司 針刺防止裝置
US12064609B2 (en) 2016-12-14 2024-08-20 Star Syringe Limited Needlestick prevention device
CN108577862A (zh) * 2017-12-15 2018-09-28 中南大学湘雅医院 一种采血器具及采用该采血器具的采血仪
CN108577862B (zh) * 2017-12-15 2020-07-31 中南大学湘雅医院 一种采血器具及采用该采血器具的采血仪

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CN102772840B (zh) 2016-06-29
CN102772840A (zh) 2012-11-14

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