WO2007104012A2 - Protection pour aiguille de seringue - Google Patents

Protection pour aiguille de seringue Download PDF

Info

Publication number
WO2007104012A2
WO2007104012A2 PCT/US2007/063571 US2007063571W WO2007104012A2 WO 2007104012 A2 WO2007104012 A2 WO 2007104012A2 US 2007063571 W US2007063571 W US 2007063571W WO 2007104012 A2 WO2007104012 A2 WO 2007104012A2
Authority
WO
WIPO (PCT)
Prior art keywords
syringe
clamping member
protector
guard
toothed surface
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/US2007/063571
Other languages
English (en)
Other versions
WO2007104012A3 (fr
Inventor
Christopher Brand
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2007104012A2 publication Critical patent/WO2007104012A2/fr
Publication of WO2007104012A3 publication Critical patent/WO2007104012A3/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
    • 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
    • A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards

Definitions

  • the present invention relates generally to syringes, and more particularly to devices for protecting the needle end of conventional medical syringes so as to prevent accidental needle pricks.
  • syringes are medical devices used to inject fluids into a body and/or withdraw fluids from within a body or its cavities.
  • Conventional medical syringes typically include a barrel portion with one end configured to mate with a conventional piercing element, such as a pointed hollow needle or cannula.
  • a plunger rod is inserted through the opposing end of the barrel portion.
  • a syringe protector can be positioned over the needle cannula, thus preventing an accidental needle prick.
  • a syringe protector should remain permanently affixed to the syringe in order to provide the highest degree of protection in the handling and disposal of the used syringe.
  • a syringe protector be simple to use and be composed of few pieces in order to be most easily employed.
  • the components of a syringe protector should be easily and inexpensively formed by mass production. Previous syringe protectors have failed to meet these criteria.
  • Existing syringe protectors are typically composed of numerous small pieces, do not permanently occlude the needle portion of a syringe, and/or are not readily compatible with a conventional medical syringe.
  • an annular clamping member having a toothed exterior portion and at least one flexible flange portion
  • a guard member is provided having a toothed interior portion.
  • a medical syringe having a needle at one end is inserted through the clamping member and is compressibly gripped by the at least one flange portion as the clamping member is inserted into the guard member such that the needle of the syringe is at least partially enclosed by the body of the guard member.
  • a clamping member is provided with a toothed interior and a guard member is provided with a toothed exterior.
  • a plurality of guard members is fixed to a movable tray body. It is one object of the present invention is to provide an improved device for protecting the needle portion of a medical syringe. Further objects, embodiments, forms, benefits, aspects, features and advantages of the present invention may be obtained from the description, drawings, and claims provided herein.
  • FIG. 1 is an exploded, perspective view of one example of a syringe protector with a conventional medical syringe.
  • FIG. 2 is an exploded, plan view of the syringe protector and syringe of FIG. 1.
  • FIG. 3 is a plan view of a partial cross-section of the syringe protector of FIG. 1.
  • FIG. 4 is an exploded, plan view of the syringe protector of FIG. 1.
  • FIG. 5 is an exploded, perspective view of the syringe protector of FIG. 1.
  • FIG. 6 is an exploded, plan view of a partial cross-section of the syringe protector of FIG. 1.
  • FIG. 7 is a plan view of a partial cross-section of another example of a syringe protector engaged with a syringe.
  • FIG. 8 is an exploded, perspective view of another example of a syringe protector with a medical syringe.
  • FIG. 9 is a side plan view of a partial cross-section of yet another example of a syringe protector.
  • FIG. 10 is a perspective view of still another example of a syringe protector.
  • FIG. 11 is a perspective view of a further example of a syringe protector.
  • FIG. 12 is a partial cross-sectional view of an alternative example of a clamping member.
  • FIG. 13 is a partial cross-sectional view of an alternative example of a guard member.
  • a conventional syringe 20 such as those used subcutaneously for the delivery of pharmacological preparations or the withdrawal of blood or other fluids, includes an integrally formed cylindrical housing 22, a gripping collar, a nozzle end 24 and an open end 26.
  • the housing is typically formed for a type of polypropylene plastic.
  • the syringe further includes a movable plunger having a gripping collar, a stem, and an elastomeric stopper. The plunger is inserted through the open end of the cylindrical housing such that the stopper forms a movable seal within the housing. By moving the plunger into the housing, fluid in the syringe is expelled through the nozzle end.
  • a cannular needle 28 is fixably or removably mounted to the syringe such that fluid passing through the nozzle end also passes through the cannula of the needle.
  • syringes and their needles vary according to the intended application. Syringes for applications such as subcutaneous insulin injection are typically less than 0.25 inches in diameter and have small needles such as a 0.5 inch long, 28 gauge diameter needle. Syringes for intramuscular injections are typically 0.25-0.5 inches in diameter and have larger needles such as a 1.5 inch long, 21 gauge diameter needle. Even larger syringes are designed for specialized applications and procedures. Still other syringe designs include Luer or Luer-Lok type syringes which have needles that are threaded onto the syringe body.
  • syringe protectors sized and adapted to accommodate non-standard syringes are also contemplated. Although the following discussion refers only to syringes, other examples of syringe protectors described herein may be used to secure other types of sharp medical instruments such as lancets, glucometer sticks, and the like until disposal.
  • the syringe protectors are typically constructed out of polypropylene, although other plastics, composites and suitable materials may also be used.
  • Figs. 1-7 show one example of a syringe protector 30.
  • Syringe protector 30 comprises a clamping member 32 and a needle guard member 34.
  • Clamping member 32 is ferrule-shaped in this particular example and includes a toothed exterior surface 36, a shoulder flange 38 defining an axial opening 40, and at least one flexible flange portion or member 42 extending from shoulder 38 and defining a flexible locking means.
  • clamping member 32 is shown with four (4) flexible flanges. This is for illustrative purposes only and other examples have a greater or lesser number of flexible flanges.
  • the wall 44 of axial opening 40 includes one or more ribs or ridges 46 configured and arranged so as to be substantially parallel to the direction of axial opening 40. In other examples, one or more ribs or ridges are configured in orientations other than substantially parallel to the direction of the axial opening.
  • Flange members 42 further include a toothed exterior surface 48 and a leading surface edge 50. In other examples, the clamping member is configured in other suitable shapes such as square, octagonal, and the like.
  • Needle guard member 34 is generally tubular-shaped defining a cavity 35 and includes a flared base 52 having a generally flat bottom surface 54, a toothed interior surface 56, and a generally annular shoulder 58 adjacent to an upper edge 60.
  • all chamfers of toothed surface 48 of clamping member 32 and of toothed surface 56 of guard member 34 are disposed at approximately a 45° angle relative to the sides of clamping member 32 and guard member 34, respectively.
  • Toothed interior 48 and toothed exterior 56 are configured and arranged such that when clamping member 32 is inserted into guard member 34, interaction between the toothed surfaces locks the two members together as shown in Fig. 3.
  • syringe protectors 30 are provided in a "pre-loaded" configuration where at least the first tooth 48a of clamping member 32 and the first tooth 56a of guard member 34 are engaged.
  • the interior diameter of the axial passage 40 of clamping member 32 is sized such that it receives the nozzle end 24 of a syringe 20 therethrough.
  • the interior surface 62 of needle guard 34 is provided with a sloped deflecting surface 64 defined by a cross-sectional area of decreasing diameter arranged between base 54 and toothed surface 56. Sloped deflecting surface 64 abuttingly deflects leading surface 50 of flange portions 42 of clamping member 32 to force or deflect the flange portions radially inward as syringe clamping member 32 is urged downward in the direction indicated by arrow "a" into needle guard member 34 as shown in Fig. 7.
  • Urging clamping member 32 into needle guard member 34 also serves to deflect flange portions 42 radially inward and compressibly engages and locks nozzle end 24 of syringe 20 in syringe guard 30.
  • needle 28 is protectively surrounded by needle guard 34, thereby preventing accidental needle sticks until the syringe and guard combination is properly disposed of using mechanical shredding, incineration, and/or other suitable disposal means.
  • protector 66 includes a clamping or actuating member 68 and a guard member 70.
  • Actuating member 68 is shown as generally cylindrical in shape for illustrative purposes only. In other examples, alternative actuating member configurations such as those with square or octagonal cross-sections are also suitable.
  • Actuating member 68 includes a cover portion 72, an axial opening 74, a toothed or ribbed inner surface (not shown) similar to the toothed surface of guard member 34 previously discussed with respect to Figs. 1-7, and a camming or deflecting surface similar to surface 64 in Figs. 1-7.
  • Guard member 70 is generally cylindrically shaped in this particular example with a flared base portion 76 to provide stability when protector 66 is placed upon a flat surface. Guard member 70 is further provided with a toothed exterior surface 78 and at least one flexible flange portions 80. In this example, guard member 70 is shown with four (4) flexible flange members. This is for illustrative purposes only and other examples will have a greater or lesser number of flange members.
  • the toothed surfaces of actuator 68 and guard 70 are configured and adapted so as to cooperate in a ratcheting fashion when actuator 68 is urged over guard 70.
  • a syringe guard is provided in a pre-assembled state prior to actual use, wherein the actuator is provided disposed downward onto the needle guard, initiating a ratchet engagement between at least the first teeth of the toothed surfaces of the actuator member and the guard member.
  • a conventional medical syringe 20 is placed within axial passageway 74 of the actuator 68 by the user such that the needle 28 of syringe 20 extends downwardly into the interior cavity 82 of guard 70.
  • Downward pressure exerted by the user on actuator 68 and syringe 20 urges actuator 68 in the direction indicated by arrow "b", whereby the internal camming surface of actuator 68 abuttingly engages and deflects flanges 80 radially inward.
  • the radial deflection of flanges 80 compressibly clamps and locks the distal end 24 of syringe 20 thereby permanently enclosing needle 28 within cavity 82 so as to prevent accidental needle pricks.
  • syringe protector 84 comprises a box or tray 86 and a plurality of clamping members 88-91.
  • Tray 86 is shown as a box having a cavity 92 bounded on one side by a substantially flat surface 94 having a plurality of locking site openings 96-99.
  • tray 86 includes four locking sites, but trays having a greater of lesser number of locking sites are also contemplated.
  • Locking site 96 includes a toothed surface 100 having a plurality of teeth or ridges 102 and a sloped camming or deflecting surface 104.
  • locking sites 96-99 are sized and adapted to accept clamping members of similar size and configuration.
  • the tray includes locking sites configured and adapted to accept clamping members designed to clamp and hold syringes of different sizes and/or configurations.
  • clamping members 88-91 are similar in structure and operation to clamping member 32 as previously described with respect to Figs. 1-7.
  • Clamping member 88 includes at least one flexible flange 106 and a toothed or ridged surface 108 having a plurality of teeth 110 configured and arranged such that when clamping member 88 is inserted into locking site 96, interaction between the toothed surfaces locks clamping member 88 to locking site 96 and tray 86.
  • Fig. 10 is a perspective view of still another example of a syringe protector 112 comprising a tray 114 having four locking sites 116-119.
  • a syringe 120 is shown locked in a clamping member 122.
  • Another clamping member 124 is shown in the "pre-loaded" configuration.
  • Fig. 11 shows a perspective view of a further example of a syringe protector 126.
  • a tray 128 includes a plurality of guard members 130- 132 similar to guard member 70 as previously described with respect to Fig. 8, and includes an actuating member 134 similar to actuating member 68. Operation of protector 126 is similar to that of protector 66 as previously described.
  • the syringe and guard/actuating member combination can be removed from tray 128 and disposed of using a traditional method (e.g., shredding or incineration) or placed in a conventional sharps container for later disposal.
  • the bases of guard members break away from the tray individually.
  • the tray is perforated such as by score lines 129, 133 so as to allow the removal of one or more guard members from the tray either individually or in groups as desired.
  • An alterative clamping member 136 is shown in Fig. 12. In this particular example, clamping member 136 includes at least one tooth or barb 138 disposed on the inner surface 140 of the axial passage 142.
  • Barb 138 is configured and arranged such as to prevent a syringe inserted through axial passage 142 from being withdrawn from clamping member 136.
  • the internal surface of the axial passage may include a greater number of barbs or barbs of different shapes, sizes and configurations.
  • guard member 150 has an outer wall 152 and an inner wall 160 which defines a cavity 156 having a base 158.
  • Guard member 150 further includes a threaded portion 168, a sloped deflecting surface 162, and a syringe stop member 166 attached to inner wall 160 and disposed in cavity 164 between deflecting surface 162 and base 158.
  • stop member 166 is an annular-shaped body having an opening 164 sized such that when a syringe is inserted in guard 150, a needle will pass through opening 164, but the nozzle an/or cylindrical body of the syringe will abut stop member 166.
  • stop member 166 is positioned such that when the syringe abuts stop member 166, the needle does not contact base 158, thereby preventing needle from accidentally being forced through base 158 by the application of too much force to the syringe.
  • the placement of stop member 166 is determined by the type and size of syringe used.
  • another configuration of a stop member or abutting surface is used such as a narrowing of the guard cavity. While some embodiments of the invention have been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character.

Landscapes

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

Abstract

L'invention concerne une protection verrouillable pour aiguille de seringue. La protection pour seringue comprend un organe de serrage et un organe de protection. L'organe de serrage comprend au moins une partie bride déformable et une surface dentée ou nervurée. L'insertion de l'organe de serrage dans l'organe de protection crée une interaction de verrouillage entre la surface dentée de l'organe de serrage et une surface dentée ou nervurée complémentaire de l'organe de protection. Une seringue usagée insérée dans la protection est maintenue en sollicitant l'organe de serrage dans l'organe de protection, pour de ce fait déformer la partie bride de l'organe de serrage et tenir par compression la seringue dans la protection.
PCT/US2007/063571 2006-03-08 2007-03-08 Protection pour aiguille de seringue Ceased WO2007104012A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/276,623 2006-03-08
US11/276,623 US20060213793A1 (en) 2005-03-08 2006-03-08 Syringe needle protector

Publications (2)

Publication Number Publication Date
WO2007104012A2 true WO2007104012A2 (fr) 2007-09-13
WO2007104012A3 WO2007104012A3 (fr) 2008-04-03

Family

ID=38475856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/063571 Ceased WO2007104012A2 (fr) 2006-03-08 2007-03-08 Protection pour aiguille de seringue

Country Status (2)

Country Link
US (1) US20060213793A1 (fr)
WO (1) WO2007104012A2 (fr)

Families Citing this family (11)

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US8603039B2 (en) * 2005-03-08 2013-12-10 Christopher Brand Syringe protector
AU2011295037B2 (en) * 2010-08-27 2015-05-14 Sanofi-Aventis Deutschland Gmbh Packaging system for multi-component medical products
US20180161491A1 (en) * 2016-12-12 2018-06-14 Becton, Dickinson And Company Packaging For Safety Needle
US11147910B2 (en) 2016-12-12 2021-10-19 Becton, Dickinson And Company Packaging for safety needle
US11173253B2 (en) 2016-12-12 2021-11-16 Becton, Dickinson And Company Packaging for safety needle
US10729843B2 (en) 2016-12-12 2020-08-04 Becton, Dickinson And Company Dual packaging for fill needle and safety needle
US11103651B2 (en) 2016-12-13 2021-08-31 Beckon, Dickinson and Company Safety needle devices
US10792438B2 (en) 2016-12-13 2020-10-06 Becton, Dickinson And Company Safety needle devices
US10661026B2 (en) 2016-12-13 2020-05-26 Becton, Dickinson And Company Safety needle device
US10589036B2 (en) 2016-12-13 2020-03-17 Becton, Dickinson And Company Safety needle device
US20250213928A1 (en) * 2023-12-29 2025-07-03 Daniel Allen EGNOR, JR. Protective cap assembly for a needle

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Also Published As

Publication number Publication date
US20060213793A1 (en) 2006-09-28
WO2007104012A3 (fr) 2008-04-03

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