US20110114521A1 - Sharps container for "no-touch," sequential safe storage of used pen needles - Google Patents
Sharps container for "no-touch," sequential safe storage of used pen needles Download PDFInfo
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- US20110114521A1 US20110114521A1 US13/013,331 US201113013331A US2011114521A1 US 20110114521 A1 US20110114521 A1 US 20110114521A1 US 201113013331 A US201113013331 A US 201113013331A US 2011114521 A1 US2011114521 A1 US 2011114521A1
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- United States
- Prior art keywords
- pen needle
- housing
- used pen
- sharps container
- pen
- 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.)
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Classifications
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/20—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles
- B65D85/24—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles for needles, nails or like elongate small articles
Definitions
- This invention relates generally to a “sharps” container for used pen needles (sometimes hereafter referred to as “PNs”) and specifically to a sharps container for used PNs which provides the safe (no-touch) sequential feeding or insertion of used PNs into the container for safe storage therein.
- PNs used pen needles
- Medical delivery pens have, more recently, become widely used instead of or in addition to syringes, e.g., by diabetics, who frequently inject themselves several times a day with accurately measured, adjustable, pre-selected amounts of insulin or other medication.
- Medical delivery pens include a reservoir of medication and a distal end adapted to be attached (usually by thread means) to a pen needle assembly (PNA).
- PNA pen needle assembly
- the pen needle assembly has (within an outer, generally cylindrical shield 28 ) a generally cylindrical housing 26 within which is mounted an axially extending hollow needle 21 , (i) the proximal end 24 of which punctures a seal in the distal end 16 of the medical delivery pen 10 (to allow the flow there-through of medication) when the delivery pen is screwed into the proximal end of the pen needle cylindrical housing 26 , and (ii) the distal end 22 of which is for insertion into tissue of the person requiring the medication.
- the pen needle assemblies typically include a removable thin sterile seal covering the proximal (large diameter) end of the said outer shield and a removable tube-like shield covering the distal portion of the hollow needle.
- the assembled pen needle assembly is then factory sterilized.
- the user of a pen needle assembly removes the seal from the outer shield, screws the pen into the proximal end of the pen needle housing, removes the outer and tube-like shields, sets the medical delivery pen for the desired dose of medication, and then inserts the distal end of the pen needle into the target tissue following which the medical delivery pen is actuated to deliver the desired dose of medication through the hollow needle into said tissue.
- Many diabetics routinely administer medication to themselves several times a day by injection of a pre-selected quantity of insulin (or substitute medication) in liquid form; the correct amount of medication can be determined from prior professional medical instruction or by use of convenient portable blood analysis kits which are small, compact and provide rapid indicators of the user's blood sugar level.
- the several daily injections are often done away from the diabetic's home or residence which has made the use of the portable, convenient medical delivery pens widespread.
- the aforesaid testing kits and the medical delivery pens are relatively small in size and can easily fit within a woman's purse or equivalent.
- a typical scenario for a diabetic at a restaurant for a meal is to first use the blood sugar testing kit to obtain an indicator of his or her blood sugar level.
- This information then facilitates programming or adjusting the medical delivery pen to deliver the desired quantity of medication. Then the pen with an attached PN (a PNA sans the outer protective shield) is used to inject the medication. These steps require a relatively short length of time and can be done with minimum loss of privacy.
- MDPs are also widely used by doctors, nurses and other professionals in their duties. Many individuals will request (sometimes insist) that an injection be done with a pen needle rather than a syringe. The aforementioned professionals are especially mindful of possible dangers from a needle stick and the possible unwanted “sticks” that occur in the professional world.
- the user both individual and professional of a pen needle assembly would, after the first use of a pen needle, carefully detach the used PN from the medical delivery pen and safely dispose said PN.
- the approved disposal procedure is (i) insertion of the distal end of the needle into the tube-like shield (sometimes omitted) and thence the shielded needle and PN cylindrical housing into the outer shield, (ii) unscrewing of the medical delivery pen from the proximal end of the pen needle cylindrical housing, and (iii) careful placement of the used pen needle assembly into a safe sharps container. Alas, the recommended procedure is not always followed.
- PNs or PNAs are routinely left in unsafe places where third parties may unwittingly be “stuck.” Examples of such unsafe places are purses, the pockets on the back of aircraft seats, private and public wastebaskets, garbage cans, dumpsters and empty milk or other unsafe containers.
- the above described disposal procedure requires that the user (or associate) handle or hold the PN while the pen is unscrewed therefrom; this creates the possibility of a potentially dangerous stick Also, if the user (or associate) tries to insert the PN into the outer shield to form a PNA, then additional handling is again required with the possibility of a “stick”.
- U.S. Pat. No. 5,545,145 shows a tube containing a small number of unused pen needle assemblies arranged in axial alignment.
- This patent also teaches that, as unused assemblies are removed from one end of the tube, then a used assembly may be inserted into the tube from the other end.
- the tube is adapted to be attached to the side of a medical delivery pen.
- This arrangement has significant shortcomings. The capacity is quite limited and, potentially dangerous “sticks” could occur when a user (or associate) tries to insert a used PN (with or without the protective outer shield) into the used end of the tube.
- the present invention provides a totally “no-touch” means for a user of a PNA to transfer a used PN from a pen into the unique used PN sharps container for safe storage therein without, as indicated, any touching of the used PN by the user.
- This invention provides a sharps container for safe manual, sequential “feeding” of used PNs into the container for safe storage therein.
- the container is a housing with an internal storage space sized to hold a plurality of used PNs.
- a used PN receiving and ejecting means is provided within the housing and includes (i) manually rotatable means connected to the housing for rotation about an axis, (ii) an ejector assembly connected to the manually rotatable means (to rotate therewith about the axis) and including a cam follower means, and (iii) cam means on the housing positioned to contact and actuate the cam follower means upon rotation of the manually rotatable means, the “actuation” of the cam follower means causing the “ejection” of the PN into the container.
- the invention provides a sharps container which is especially useful for an individual such as a diabetic who may require several daily doses of medication, which doses are required throughout the day (frequently at meal time) and thus may occur at the users residence but are often at other locations such as the user's place of work, at a restaurant, in an automobile or aircraft, etc.
- the container can be relatively compact and sized to fit within a woman's purse or equivalent.
- FIG. 1 is a top, side isometric view of the preferred embodiment of a PN sharps container provided by the invention.
- FIG. 2 is a side view, partly in section, of the container of FIG. 1 .
- FIG. 3 is an enlarged view of that part of the top 12 A of the housing that includes a port or opening 13 as shown in FIG. 2 and as viewed along section lines 3 - 3 thereof.
- FIG. 4 is an enlarged view of the ejector means 30 shown in FIG. 2 as viewed along section lines 4 - 4 thereof and including a pen needle 50 positioned in the ejector means 30 .
- FIG. 5A is a cross-section view of the ejector means 30 as viewed along section lines 5 A- 5 A of FIG. 4 , this view showing the pen needle 50 .
- FIG. 5B is a cross-section view of the ejector means 30 as viewed along section lines 5 B- 5 B of FIG. 4 but with the pen needle 50 removed to enable the showing of ribs 35 of the ejector means 30 .
- FIGS. 6 and 7 are somewhat schematic views of the housing and the ejector means showing the ejector means in two orientations when rotated about the axis by the manually rotatable means.
- FIG. 8 is a cross-section view of the rotatable means as viewed along section lines 8 - 8 of FIG. 2 .
- a sharps container AA provides a means for the safe, i.e., “no direct human touching” storage of used pen needles.
- the container AA comprises a housing 10 having a bottom or storage section 11 and an upper or cover section 12 which fit together as is shown clearly in FIGS. 2 , 6 and 7 to define an internal storage space sized to facilitate the safe storage of a plurality of used pen needles.
- section 11 has sides and a bottom surface 11 A for receiving the used pen needles and a top edge 11 B with a rim 11 ′.
- Cover section 12 as viewed in FIGS. 6 and 7 has a curved shape about an axis.
- the top 12 A of the cover section 12 has an opening 13 sized to permit the axial insertion therethrough of a used pen needle PN also identified in the drawings by reference numeral 50 .
- the bottom edge 12 B of the cover section 12 has an inwardly extending latch portion which co-acts with rim 11 ′ to provide a locking means for sections 11 and 12 .
- Section 12 has two planar ends 12 ′ and 12 ′′ shown best in FIG. 2 .
- FIG. 1 shows, in phantom, a medical delivery pen (MDP) of the well known types currently used having at the distal end thereof male thread means for attachment to female threads in the proximal end of a pen needle 50 .
- MDP medical delivery pen
- the pen needle 50 has a cylindrical surface 51 with a pre-selected outer diameter.
- the cylindrical surface 51 also has a plurality of longitudinally extending shallow grooves 54 (see FIGS. 1 , 2 and 4 ) which co-act with ribs 35 of the pen needle receiving and ejecting assembly 30 , described below, to hold the pen needle against rotation about its longitudinal axis when the user unscrews the pen therefrom.
- a manually rotatable means comprising an external knob 14 with connected shafts 15 ′ and 15 ′′ and a central collar 16 rotatably supported by bearing means 12 C and 12 D in ends 12 ′ and 12 ′′ respectively of the housing for rotation, relative to the housing, about a rotational axis RA.
- the collar 16 has a central bore sized to receive and firmly hold the ejector assembly 30 and additionally has means 16 A and 16 B for attachment thereto of the inboard ends of shafts 15 ′ and 15 ′′.
- Shaft 15 ′ has a bore ISA with a square cross-section for receiving a square cross-section shaft 14 A connected to external knob 14 .
- the ejector assembly 30 for this embodiment, is shown to comprise an elongated tubular member 31 having two ends, an upper end 31 ′ and a lower end 31 ′′.
- the upper end 31 ′ per se is best shown in FIG. 5B and comprises a bore 33 sized to receive the aforesaid pre-selected outer cylindrical surface 51 of used pen needle 50 .
- Bore 33 axially extends from end 31 ′ a pre-selected distance terminating with an inwardly extending shoulder means 34 ′.
- a plurality of axially extending ribs 35 are integral with tubular member 31 and extend radially inward from the sides of the bore 33 a sufficient amount so as to engage the shallow grooves 54 of the pen needle 50 to provide the above described holding function.
- the remaining bore of tubular member 31 is identified by reference numeral 32 ; thus bores 32 and 33 together have a pre-selected axial length, the two ends of which are defined by the ends 31 ′ and 31 ′′ of the tubular member 31 .
- the ends 31 ′ and 31 ′′ are approximately equidistant from the rotational axis RA.
- the total axial length of the tubular member 31 is pre-selected, regard being given to the size of the housing 10 , so that it may be rotated about the rotational axis RA without contacting the inside surface 12 AA of the housing but yet have the end 31 ′ (for the used pen needle receiving function) adjacent to opening 13 of the housing.
- An elongated ejector means 40 has a pre-selected axial length and a cylindrical shape 40 ′ sized to snuggly, but slidably fit within bores 32 and 33 (for relative axial movement therewith) is shown in FIGS. 2 , 5 A, 5 B, 6 and 7 .
- a longitudinally extending bore 40 ′′ is provided which extends to an end surface 40 ′′′ which is adjacent to the bottom or second end 40 B.
- End 40 B is curved to provide a cam follower surface. It is important to note that end 40 B normally extends a pre-selected distance beyond the end 31 ′′ of tubular member 31 ; this is shown in FIG. 5A .
- the ejector means 40 includes an integral pair of latch arms 41 and 42 having, respectively, latch means 41 ′ and 42 ′ for engagement with shoulder means 34 ′; this provides a holding function to prevent the ejector means 40 from being moved axially out of the tubular member 31 (downward as shown in FIG. 5A ). However, as described below, the entire ejector means 40 is, during the used pen needle ejection phase, moved upwardly (as shown in FIG. 5A ) by the caroming action of cam follower 40 B contacting the cam surface 12 AA on the inside of housing 10 .
- FIG. 7 shows the ejector means 40 at its maximum axial displacement relative to the tubular member 31 .
- FIG. 5A shows the used pen needle 50 positioned in the recessed bore 33 with the cylindrical surface 51 and associated grooves 54 in firm engagement with bore 33 and its associated ribs 35 .
- FIG. 5B it is seen that the ribs 35 are slightly tapered from top 35 ′ to bottom 35 ′′; this taper function of ribs 35 in combination with reverse tapers of the grooves 54 on the cylindrical surface 51 of the used pen needle facilitates the aforesaid firm holding of the pen needle.
- FIG. 5A also shows the radial wall 52 of the pen needle, and the centrally positioned, axially extending hollow needle 53 having a proximal end 53 ′ and a distal end 53 ′′.
- the bore 40 ′′ is axially sized to accommodate all expected lengths of needles.
- the used pen needle receiving and ejecting means 30 is oriented about the rotational axis RA so that the end 31 ′ is adjacent to and aligned with the opening 13 of the housing 12 .
- the cam follower 40 B is shown extending out end 31 ′ of tubular member 31 .
- the knob 14 is manually rotated clockwise as shown in FIG. 6 ; this rotation continues to the orientation shown in FIG. 7 .
- the cam follower 40 B has had initial contact with the inside curved surface 12 AA of the housing.
- the cam follower (and the entire ejector means 40 ) is subject to an axial force tending to move the ejector means 40 in the axial direction toward end 31 ′.
- the end result is that the used pen needle 50 will be ejected out of the bore 33 into the bottom of the housing as is shown in FIG. 7 .
- the end 40 A of the ejector 40 is co-planar with end 31 ′ of tubular member 31 .
- the magnitude of the axial force applied to the used pen needle 50 during the ejection is a function of the level of co-action between the ribs 35 and grooves 54 ; the force can vary to impart a range of velocities to the ejected pen needle.
- the invention provides for the safe storage of the used pen needles; the ejection velocity of the used pen needle being irrelevant because they are confined within the housing.
- the apparatus is then available to safely dispose of additional used pen needle assemblies.
- the user rotates the knob 14 to an angular position as shown in FIGS. 1 and 6 whereat the next used pen needle (on the end of a pen) may be inserted, via opening 13 , into the bore 33 .
- the pen user does not have to touch the used pen needle either to (i) remove the used pen needle from the pen, or (ii) dispose the used pen needle into a safe storage means.
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Abstract
A sharps container for safe storage of used pen needles comprises a housing within which is rotatably mounted a used pen needle receiving and ejecting means. Used pen needles are inserted into the receiving means. The receiving and ejecting means is rotated; during the rotation, cam follower means connected to the ejecting means engages cam means within the housing to cause the ejection of the used pen needle into the housing.
Description
- This application is a continuation of U.S. application Ser. No. 12/766,399 filed Apr. 23, 2010, which is a continuation application of U.S. application Ser. No. 12/033,514 filed Feb. 19, 2008, now U.S. Pat. No. 7,721,886, which is a continuation application of U.S. application Ser. No. 10/862,835 filed Jun. 7, 2004, now U.S. Pat. No. 7,344,027.
- This invention relates generally to a “sharps” container for used pen needles (sometimes hereafter referred to as “PNs”) and specifically to a sharps container for used PNs which provides the safe (no-touch) sequential feeding or insertion of used PNs into the container for safe storage therein.
- Because of well known health issues, the safe disposal of syringes and other “sharps” has long been a high priority for medical related professional facilities and industries. Prior art sharps containers are found in public venues such as hospitals, medical clinics, and retail establishments. These containers are usually securely attached to some base means and have a lock means to permit controlled and safe removal of used “sharps.”
- There are also prior art “portable” sharps containers for syringes, examples being U.S. Pat. Nos. 5,494,158 and 6,685,017 showing sharps containers which necessarily are large because of the size of the elongated syringes.
- Medical delivery pens (hereinafter sometimes “MDPs”) have, more recently, become widely used instead of or in addition to syringes, e.g., by diabetics, who frequently inject themselves several times a day with accurately measured, adjustable, pre-selected amounts of insulin or other medication. Medical delivery pens include a reservoir of medication and a distal end adapted to be attached (usually by thread means) to a pen needle assembly (PNA). As is well known (see, for example FIG. 1 of U.S. Pat. No. 5,545,145), the pen needle assembly has (within an outer, generally cylindrical shield 28) a generally cylindrical housing 26 within which is mounted an axially extending hollow needle 21, (i) the proximal end 24 of which punctures a seal in the
distal end 16 of the medical delivery pen 10 (to allow the flow there-through of medication) when the delivery pen is screwed into the proximal end of the pen needle cylindrical housing 26, and (ii) the distal end 22 of which is for insertion into tissue of the person requiring the medication. The pen needle assemblies typically include a removable thin sterile seal covering the proximal (large diameter) end of the said outer shield and a removable tube-like shield covering the distal portion of the hollow needle. The assembled pen needle assembly is then factory sterilized. The user of a pen needle assembly removes the seal from the outer shield, screws the pen into the proximal end of the pen needle housing, removes the outer and tube-like shields, sets the medical delivery pen for the desired dose of medication, and then inserts the distal end of the pen needle into the target tissue following which the medical delivery pen is actuated to deliver the desired dose of medication through the hollow needle into said tissue. - Many diabetics routinely administer medication to themselves several times a day by injection of a pre-selected quantity of insulin (or substitute medication) in liquid form; the correct amount of medication can be determined from prior professional medical instruction or by use of convenient portable blood analysis kits which are small, compact and provide rapid indicators of the user's blood sugar level. The several daily injections are often done away from the diabetic's home or residence which has made the use of the portable, convenient medical delivery pens widespread. The aforesaid testing kits and the medical delivery pens are relatively small in size and can easily fit within a woman's purse or equivalent. A typical scenario for a diabetic at a restaurant for a meal is to first use the blood sugar testing kit to obtain an indicator of his or her blood sugar level. This information then facilitates programming or adjusting the medical delivery pen to deliver the desired quantity of medication. Then the pen with an attached PN (a PNA sans the outer protective shield) is used to inject the medication. These steps require a relatively short length of time and can be done with minimum loss of privacy.
- MDPs are also widely used by doctors, nurses and other professionals in their duties. Many individuals will request (sometimes insist) that an injection be done with a pen needle rather than a syringe. The aforementioned professionals are especially mindful of possible dangers from a needle stick and the possible unwanted “sticks” that occur in the professional world.
- In a perfect world, the user (both individual and professional) of a pen needle assembly would, after the first use of a pen needle, carefully detach the used PN from the medical delivery pen and safely dispose said PN. The approved disposal procedure is (i) insertion of the distal end of the needle into the tube-like shield (sometimes omitted) and thence the shielded needle and PN cylindrical housing into the outer shield, (ii) unscrewing of the medical delivery pen from the proximal end of the pen needle cylindrical housing, and (iii) careful placement of the used pen needle assembly into a safe sharps container. Alas, the recommended procedure is not always followed. Used (and potentially dangerous) PNs or PNAs are routinely left in unsafe places where third parties may unwittingly be “stuck.” Examples of such unsafe places are purses, the pockets on the back of aircraft seats, private and public wastebaskets, garbage cans, dumpsters and empty milk or other unsafe containers.
- Further, the above described disposal procedure requires that the user (or associate) handle or hold the PN while the pen is unscrewed therefrom; this creates the possibility of a potentially dangerous stick Also, if the user (or associate) tries to insert the PN into the outer shield to form a PNA, then additional handling is again required with the possibility of a “stick”.
- One prior art example of a container for unused and used pen needle assemblies is U.S. Pat. No. 5,545,145 which shows a tube containing a small number of unused pen needle assemblies arranged in axial alignment. This patent also teaches that, as unused assemblies are removed from one end of the tube, then a used assembly may be inserted into the tube from the other end. The tube is adapted to be attached to the side of a medical delivery pen. This arrangement has significant shortcomings. The capacity is quite limited and, potentially dangerous “sticks” could occur when a user (or associate) tries to insert a used PN (with or without the protective outer shield) into the used end of the tube.
- The present invention provides a totally “no-touch” means for a user of a PNA to transfer a used PN from a pen into the unique used PN sharps container for safe storage therein without, as indicated, any touching of the used PN by the user.
- This invention provides a sharps container for safe manual, sequential “feeding” of used PNs into the container for safe storage therein. The container is a housing with an internal storage space sized to hold a plurality of used PNs. A used PN receiving and ejecting means is provided within the housing and includes (i) manually rotatable means connected to the housing for rotation about an axis, (ii) an ejector assembly connected to the manually rotatable means (to rotate therewith about the axis) and including a cam follower means, and (iii) cam means on the housing positioned to contact and actuate the cam follower means upon rotation of the manually rotatable means, the “actuation” of the cam follower means causing the “ejection” of the PN into the container.
- The invention provides a sharps container which is especially useful for an individual such as a diabetic who may require several daily doses of medication, which doses are required throughout the day (frequently at meal time) and thus may occur at the users residence but are often at other locations such as the user's place of work, at a restaurant, in an automobile or aircraft, etc. The container can be relatively compact and sized to fit within a woman's purse or equivalent.
-
FIG. 1 is a top, side isometric view of the preferred embodiment of a PN sharps container provided by the invention. -
FIG. 2 is a side view, partly in section, of the container ofFIG. 1 . -
FIG. 3 is an enlarged view of that part of the top 12A of the housing that includes a port or opening 13 as shown inFIG. 2 and as viewed along section lines 3-3 thereof. -
FIG. 4 is an enlarged view of the ejector means 30 shown inFIG. 2 as viewed along section lines 4-4 thereof and including apen needle 50 positioned in the ejector means 30. -
FIG. 5A is a cross-section view of the ejector means 30 as viewed alongsection lines 5A-5A ofFIG. 4 , this view showing thepen needle 50. -
FIG. 5B is a cross-section view of the ejector means 30 as viewed along section lines 5B-5B ofFIG. 4 but with thepen needle 50 removed to enable the showing ofribs 35 of the ejector means 30. -
FIGS. 6 and 7 are somewhat schematic views of the housing and the ejector means showing the ejector means in two orientations when rotated about the axis by the manually rotatable means. -
FIG. 8 is a cross-section view of the rotatable means as viewed along section lines 8-8 ofFIG. 2 . - In
FIG. 1 a sharps container AA provides a means for the safe, i.e., “no direct human touching” storage of used pen needles. The container AA comprises ahousing 10 having a bottom or storage section 11 and an upper orcover section 12 which fit together as is shown clearly inFIGS. 2 , 6 and 7 to define an internal storage space sized to facilitate the safe storage of a plurality of used pen needles. Thus section 11 has sides and a bottom surface 11A for receiving the used pen needles and a top edge 11B with a rim 11′.Cover section 12, as viewed inFIGS. 6 and 7 has a curved shape about an axis. The top 12A of thecover section 12 has anopening 13 sized to permit the axial insertion therethrough of a used pen needle PN also identified in the drawings byreference numeral 50. Thebottom edge 12B of thecover section 12 has an inwardly extending latch portion which co-acts with rim 11′ to provide a locking means forsections 11 and 12.Section 12 has twoplanar ends 12′ and 12″ shown best inFIG. 2 . -
FIG. 1 shows, in phantom, a medical delivery pen (MDP) of the well known types currently used having at the distal end thereof male thread means for attachment to female threads in the proximal end of apen needle 50. It should be understood thatpen needle 50 shown inFIG. 1 has already been used and the user desires to safely remove the used pen needle from the pen and thence place the used pen needle into safe storage means. Thepen needle 50 has acylindrical surface 51 with a pre-selected outer diameter. Thecylindrical surface 51 also has a plurality of longitudinally extending shallow grooves 54 (seeFIGS. 1 , 2 and 4) which co-act withribs 35 of the pen needle receiving and ejectingassembly 30, described below, to hold the pen needle against rotation about its longitudinal axis when the user unscrews the pen therefrom. - A manually rotatable means comprising an
external knob 14 withconnected shafts 15′ and 15″ and acentral collar 16 rotatably supported by bearing means 12C and 12D in ends 12′ and 12″ respectively of the housing for rotation, relative to the housing, about a rotational axis RA. Thecollar 16 has a central bore sized to receive and firmly hold theejector assembly 30 and additionally has means 16A and 16B for attachment thereto of the inboard ends ofshafts 15′ and 15″.Shaft 15′ has a bore ISA with a square cross-section for receiving asquare cross-section shaft 14A connected toexternal knob 14. Thus rotation of theknob 14 will rotate theejector assembly 30 about the rotational axis RA. - The
ejector assembly 30, for this embodiment, is shown to comprise anelongated tubular member 31 having two ends, anupper end 31′ and alower end 31″. Theupper end 31′ per se is best shown inFIG. 5B and comprises abore 33 sized to receive the aforesaid pre-selected outercylindrical surface 51 of usedpen needle 50.Bore 33 axially extends fromend 31′ a pre-selected distance terminating with an inwardly extending shoulder means 34′. A plurality of axially extendingribs 35 are integral withtubular member 31 and extend radially inward from the sides of the bore 33 a sufficient amount so as to engage theshallow grooves 54 of thepen needle 50 to provide the above described holding function. - The remaining bore of
tubular member 31 is identified byreference numeral 32; thus bores 32 and 33 together have a pre-selected axial length, the two ends of which are defined by theends 31′ and 31″ of thetubular member 31. Importantly, the ends 31′ and 31″ are approximately equidistant from the rotational axis RA. Further, the total axial length of thetubular member 31 is pre-selected, regard being given to the size of thehousing 10, so that it may be rotated about the rotational axis RA without contacting the inside surface 12AA of the housing but yet have theend 31′ (for the used pen needle receiving function) adjacent to opening 13 of the housing. - An elongated ejector means 40 has a pre-selected axial length and a
cylindrical shape 40′ sized to snuggly, but slidably fit within bores 32 and 33 (for relative axial movement therewith) is shown inFIGS. 2 , 5A, 5B, 6 and 7. At the top of afirst end 40A (as shown inFIG. 5A ) of the ejector means 40, alongitudinally extending bore 40″ is provided which extends to anend surface 40″′ which is adjacent to the bottom orsecond end 40B.End 40B is curved to provide a cam follower surface. It is important to note thatend 40B normally extends a pre-selected distance beyond theend 31″ oftubular member 31; this is shown inFIG. 5A . - The ejector means 40 includes an integral pair of
latch arms FIG. 5A ). However, as described below, the entire ejector means 40 is, during the used pen needle ejection phase, moved upwardly (as shown inFIG. 5A ) by the caroming action ofcam follower 40B contacting the cam surface 12AA on the inside ofhousing 10.FIG. 7 shows the ejector means 40 at its maximum axial displacement relative to thetubular member 31. Such upward, axial motion of the ejector means relative to themember 31, while sufficient to eject the used pen needle, is limited by a stop means 40AA (on ejector means 40) abutting against aninternal shoulder 31 AA ofmember 31. -
FIG. 5A shows the usedpen needle 50 positioned in the recessed bore 33 with thecylindrical surface 51 and associatedgrooves 54 in firm engagement withbore 33 and its associatedribs 35. Referring toFIG. 5B , it is seen that theribs 35 are slightly tapered from top 35′ to bottom 35″; this taper function ofribs 35 in combination with reverse tapers of thegrooves 54 on thecylindrical surface 51 of the used pen needle facilitates the aforesaid firm holding of the pen needle. To explain further, when the pen user inserts thepen needle 50 through theopening 13 of the housing and thence into the recessed bore 33, there will be enough axially force applied by the user via the pen to the pen needle to firmly engage the pen needle to themember 31 following which the user will unscrew the pen from the pen needle.FIG. 5A also shows theradial wall 52 of the pen needle, and the centrally positioned, axially extendinghollow needle 53 having aproximal end 53′ and adistal end 53″. Thebore 40″ is axially sized to accommodate all expected lengths of needles. - Referring to
FIG. 6 , it is seen that the used pen needle receiving and ejecting means 30 is oriented about the rotational axis RA so that theend 31′ is adjacent to and aligned with theopening 13 of thehousing 12. It should be understood, for this explanation, that a used pen needle is already positioned withinbore 33 as aforesaid. In this view, thecam follower 40B is shown extending outend 31′ oftubular member 31. To eject the pen needle, theknob 14 is manually rotated clockwise as shown inFIG. 6 ; this rotation continues to the orientation shown inFIG. 7 . Beginning prior to this point thecam follower 40B has had initial contact with the inside curved surface 12AA of the housing. As the clockwise rotation continues the cam follower (and the entire ejector means 40) is subject to an axial force tending to move the ejector means 40 in the axial direction towardend 31′. The end result is that the usedpen needle 50 will be ejected out of thebore 33 into the bottom of the housing as is shown inFIG. 7 . Note inFIG. 7 that theend 40A of theejector 40 is co-planar withend 31′ oftubular member 31. The magnitude of the axial force applied to the usedpen needle 50 during the ejection is a function of the level of co-action between theribs 35 andgrooves 54; the force can vary to impart a range of velocities to the ejected pen needle. In all cases, the invention provides for the safe storage of the used pen needles; the ejection velocity of the used pen needle being irrelevant because they are confined within the housing. - The apparatus is then available to safely dispose of additional used pen needle assemblies. The user rotates the
knob 14 to an angular position as shown inFIGS. 1 and 6 whereat the next used pen needle (on the end of a pen) may be inserted, via opening 13, into thebore 33. - It will be understood that the pen user does not have to touch the used pen needle either to (i) remove the used pen needle from the pen, or (ii) dispose the used pen needle into a safe storage means.
- While we have shown our preferred embodiment of the invention, it will be understood that variations may be made without departing from the inventive concept. For example, while the ejector mechanism has been positioned within a tubular member, other means may provide the elongated bore means within which the ejector mechanism is positioned. Accordingly, the invention is to be limited only by the scope of the following claims.
Claims (6)
1. (canceled)
2. A sharps container for facilitating the safe manual, sequential feeding of cylindrically shaped used pen needles into said sharps container for safe storage therein, said used pen needles having a pre-selected outer diameter, said sharps container comprising:
a housing;
a cover section, which together with the housing defines an internal storage space sized to facilitate the safe storage therein of a plurality of used pen needles, said housing and the cover section are configured to lock together;
an internal cam associated with the sharps container; and
a rotatable used pen needle receiver having an ejector mechanism associated therewith located within at least one of the housing and the cover section, said rotatable used pen needle receiver having a first position and a second position,
wherein the ejector mechanism of the rotatable used pen needle receiver is capable of cooperating with the internal cam upon rotation of the used pen needle receiver to convey a pen needle positioned within the used pen needle receiver in the first position to a second position and to eject the used pen needle within the internal storage space in the second position of the used pen needle receiver.
3. The sharps container of claim 2 , wherein the housing and the cover section include mutually engaging members.
4. The sharps container of claim 3 , wherein the housing has a rim.
5. The sharps container of claim 4 , wherein the cover section has a latch portion which co-acts with the rim of the housing.
6. The sharps container of claim 5 , wherein the latch portion is inwardly extending.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/013,331 US20110114521A1 (en) | 2004-06-07 | 2011-01-25 | Sharps container for "no-touch," sequential safe storage of used pen needles |
US14/746,190 US20150283330A1 (en) | 2004-06-07 | 2015-06-22 | Sharps container for "no-touch," sequential safe storage of used pen needles |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/862,835 US7344027B2 (en) | 2004-06-07 | 2004-06-07 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US12/033,514 US7721886B2 (en) | 2004-06-07 | 2008-02-19 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US12/766,399 US7891487B2 (en) | 2004-06-07 | 2010-04-23 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US13/013,331 US20110114521A1 (en) | 2004-06-07 | 2011-01-25 | Sharps container for "no-touch," sequential safe storage of used pen needles |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/766,399 Continuation US7891487B2 (en) | 2004-06-07 | 2010-04-23 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/746,190 Continuation US20150283330A1 (en) | 2004-06-07 | 2015-06-22 | Sharps container for "no-touch," sequential safe storage of used pen needles |
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US20110114521A1 true US20110114521A1 (en) | 2011-05-19 |
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US10/862,835 Active 2026-02-02 US7344027B2 (en) | 2004-06-07 | 2004-06-07 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US12/033,514 Active 2024-09-14 US7721886B2 (en) | 2004-06-07 | 2008-02-19 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US12/766,399 Expired - Lifetime US7891487B2 (en) | 2004-06-07 | 2010-04-23 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US13/013,331 Abandoned US20110114521A1 (en) | 2004-06-07 | 2011-01-25 | Sharps container for "no-touch," sequential safe storage of used pen needles |
US14/746,190 Abandoned US20150283330A1 (en) | 2004-06-07 | 2015-06-22 | Sharps container for "no-touch," sequential safe storage of used pen needles |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
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US10/862,835 Active 2026-02-02 US7344027B2 (en) | 2004-06-07 | 2004-06-07 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US12/033,514 Active 2024-09-14 US7721886B2 (en) | 2004-06-07 | 2008-02-19 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
US12/766,399 Expired - Lifetime US7891487B2 (en) | 2004-06-07 | 2010-04-23 | Sharps container for “no-touch,” sequential safe storage of used pen needles |
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Application Number | Title | Priority Date | Filing Date |
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US14/746,190 Abandoned US20150283330A1 (en) | 2004-06-07 | 2015-06-22 | Sharps container for "no-touch," sequential safe storage of used pen needles |
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US (5) | US7344027B2 (en) |
CN (1) | CN100584400C (en) |
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Also Published As
Publication number | Publication date |
---|---|
US20150283330A1 (en) | 2015-10-08 |
US20050269226A1 (en) | 2005-12-08 |
CN1988929A (en) | 2007-06-27 |
US20100200445A1 (en) | 2010-08-12 |
US7721886B2 (en) | 2010-05-25 |
CN100584400C (en) | 2010-01-27 |
US20080135434A1 (en) | 2008-06-12 |
US7891487B2 (en) | 2011-02-22 |
US7344027B2 (en) | 2008-03-18 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION |