WO2002013889A1 - Systeme de securite destine a encapsuler un instrument medical pointu ou tranchant - Google Patents

Systeme de securite destine a encapsuler un instrument medical pointu ou tranchant Download PDF

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Publication number
WO2002013889A1
WO2002013889A1 PCT/US2001/025621 US0125621W WO0213889A1 WO 2002013889 A1 WO2002013889 A1 WO 2002013889A1 US 0125621 W US0125621 W US 0125621W WO 0213889 A1 WO0213889 A1 WO 0213889A1
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WO
WIPO (PCT)
Prior art keywords
container
cup
chamber
component
instrument
Prior art date
Application number
PCT/US2001/025621
Other languages
English (en)
Inventor
Robert E. Montenieri
Brian R. Vakiener
Shabbir Attarwala
Original Assignee
Henkel Loctite Corporation
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 Henkel Loctite Corporation filed Critical Henkel Loctite Corporation
Priority to AU2001286502A priority Critical patent/AU2001286502A1/en
Publication of WO2002013889A1 publication Critical patent/WO2002013889A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • 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
    • A61M5/3278—Apparatus for destroying used needles or syringes
    • A61M2005/328—Apparatus for destroying used needles or syringes having needle tip encapsulating means, e.g. two-component hardenable compound or molten plastic
    • 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 a containment system for disposal of a sharp medical instrument such as a hypodermic needle. More particularly, the present invention relates to a containment device which quickly and permanently seals, plugs and encapsulates an inserted needle, making it unusable and allowing the safe disposal thereof.
  • U.S. Patent No. 5,322, 165 a two-part hardenable compound is provided in a container which accepts a sharp medical instrument such as a hypodermic needle.
  • the container of the '165 patent supports a hardenable resin such as a cyanoacrylate ester and a filler of particulate matter in spaced separation.
  • the filler includes an accelerator which is used to speed up the hardening of the resin.
  • the resin and the filler accelerator are separated by a rupturable partition such as thin glass.
  • the used medical instrument such as a needle, is inserted into the container, rupturing the glass membrane between the two components, thereby causing the components to come together and harden around the needle.
  • a container holds a first liquid reactive agent and a porous foam impregnated with a second reactive agent.
  • a pierceable membrane separates the porous impregnated foam from the first reactive agent.
  • the first reactive agent is absorbed by the foam which then, as a result of hardening, encapsulates the sharp object.
  • the subsequent mixing operation by the healthcare professional may present additional risks or, as significantly, if done improperly, may result in incomplete hardening around the inserted needle and failure to plug the needle itself.
  • the present invention provides a containment system for encapsulating a sharp medical instrument.
  • the containment system includes a container having an end for insertably receiving the sharp medical instrument.
  • the container supports a pair of liquid components of a two-part hardenable resin material.
  • the two liquid components include a hardenable resin first part and a resin hardener second part, each of which are separated by a rupturable divider which is ruptured upon instrument insertion. The components are mixed upon rupture of the divider and harden to encapsulate the inserted medical instrument.
  • the container includes an open ended container base which accommodates one of the pair of liquid components, and an open ended container cap which insertably receives the medical instrument and accommodates the other of the pair of liquid components.
  • the cap is positioned and secured over the open end of the base with the rupturable divider being positioned therebetween.
  • the rupturable divider may be a glass wafer which is shatterable upon instrument insertion.
  • the compounds may include a hardenable resin and a resin hardener.
  • the hardenable liquid resin may be selected from a variety of resins which can be cured rapidly (meth)acrylates, cyanoacrylates, vinyls, epoxies and combinations thereof.
  • liquid resin hardener may be selected in accordance with the type of hardenable resin employed.
  • free radical initiators metal catalysts, acidic or basic catalysts and/or accelerators may be employed.
  • the term "liquid resin hardener" will include any material, such as initiators, catalysts, accelerators, and promoters, which when mixed with the hardenable resin causes the resin to harden.
  • the rupturable divider may include a break-away wall which is snap-fitted onto the container cap and is broken away by instrument insertion.
  • a method of encapsulating a sharp medical instrument includes inserting the instrument into a container supporting a pair of liquid components of a two-part hardenable compound. The components are separated by a rupturable divider. Upon inserting the instrument into container, the divider is ruptured and the components become mixed so as to cause the compound to harden around the instrument.
  • a container for enclosing a medical instrument having a sharp extent comprises a container housing having an upper chamber, a middle chamber and a lower chamber.
  • the upper chamber has an upper end for insertably receiving the instrument and for accommodating a first component of a two- component hardenable compound.
  • the middle chamber accommodates a second component of the two-component hardenable compound.
  • a rupturable divider is disposed between the upper chamber and the middle chamber, the divider being rupturable upon instrument insertion to cause the first and second components to mix in the middle chamber and harden around a portion of the inserted instrument.
  • a penetrable wall is disposed between the middle chamber and the lower chamber, the wall being penetrable by a sharp extent of the instrument, the lower chamber being configured to receive and accommodate the sharp extent of the inserted instrument.
  • Figure 1 is an exploded vertical section of one embodiment of the containment system of the present invention.
  • Figure 2 is a vertical sectional showing of the assembled containment system of Figure 1.
  • Figures 3, 4 and 5 are sectional showings of containment system of Figure 1, including two-part liquid encapsulate accommodated therein, with the figures showing progressively the insertion of a needle thereinto.
  • Figure 6 is a vertical section of a further embodiment of the containment system of Figure 1.
  • Figures 7-10 are vertical sections of additional embodiments of the containment system of the present invention.
  • Figure 11 is a schematic showing of a tray used to support a plurality of containment devices shown in Figures 1-10.
  • Figure 12 is a perspective view of a further particular form of a container for encapsulating a sharp medical instrument in accordance with the present invention.
  • Figure 13 is a perspective vertical sectional view of the container of Figure 12.
  • Figure 14 is a vertical sectional view of the container of Figure 12.
  • Figure 15 is a perspective view of an upper cup component of the container of
  • Figure 14 for accommodating one component of a two-component hardenable compound.
  • Figures 15(a) and 15(b) are perspective views of variations of the upper cup component of Figure 15.
  • Figure 16 is a vertical sectional view of the container of Figure 12 shown in encapsulating assembly with a hypodermic needle.
  • the present invention provides a containment system for the encapsulation of a sharp medical instrument such as a hypodermic needle.
  • the containment system is easy to use and quickly encapsulates the needle after use, thus reducing the incident of accidental needle stick by making it non-reusable.
  • first component may be a liquid hardenable resin of the type selected from the group consisting of anaerobically curable resins, epoxy resins, cyanoacrylates, vinyl resins, silicones, silicone-acrylate resins and combinations thereof.
  • a second component may include a liquid resin hardener selected from the group consisting of free radical initiators, metal catalysts, acidic or basic catalysts or combinations thereof. The two liquid components forming the liquid hardenable resin and the liquid resin hardener are miscible. Thus, upon mixing the liquid hardenable resin with the liquid resin hardener, the liquid components rapidly harden, and, as will be disclosed in further detail hereinbelow, completely encapsulate an inserted sharp medical instrument such as a hypodermic needle.
  • the containment assembly 10 preferably includes three assembled components.
  • a base 16 supports a liquid resin hardener 12 while a cap 18 supports a liquid resin 14.
  • a rupturable divider in the form of a membrane or wafer 20 is supported between cap 18 and base 16, so as to contain hardener 14 in the cap and to separate resin hardener 12 from liquid resin 14.
  • the base may support the resin while the cap supports the hardener.
  • base 16 is generally a cup-shape member having a closed bottom surface 22 and an opposed open end 24, with a circumferential sidewall 26 extending therebetween.
  • Base 16 defines an interior 17 for accommodating liquid hardenable resin 12 at the lower end thereof.
  • the distal extent of sidewall 26 defines a rim-like seat 30 for supporting rupturable wafer 20 thereon.
  • base 16 includes an outwardly extending lip 31, which as will be described in detail hereinbelow, provides for securement of cap 18 thereto.
  • Cap 18 is generally an elongate member having an enlarged lower open end
  • Base 16 and cap 18 may be formed of any suitably rigid material, preferably molded plastic which, with the exception of transverse wall 36, is resistant to puncture by a sharp medical instrument such as a hypodermic needle. It is also preferable that base 16 and cap 18 be formed of a transparent or translucent material so as to permit viewing of the components of the two-part compound, as well as the insertion of the sharp medical instrument therein.
  • cap 18 is attachable to base 16, with wafer 20 being secured therebetween.
  • the enlarged lower end 32 of cap 18 fits in a frictionally secured relationship with the extending lip 31 of the upper end of base 16.
  • securement wafer 20 seated on rim 30, is captively secured between base 16 and cap 18.
  • frictional securement of cap 18 to base 16 is shown, other securement techniques such as interfitting snap rings and/or screw securement may also be employed.
  • Wafer 20 with cap 18 defines a cap interior 19 for accommodating resin 14.
  • Wafer 20 is preferably formed of shatterable material, such as glass. As such, upon contact with the sharp medical instrument during insertion thereof, the glass wafer 20 will shatter. Shattering of wafer 20 assures that the interior 19 of cap 18 is placed in communication with the interior 17 of base 16 so as to cause the liquid resin 14 to flow from interior 19 into interior 17 and mix with resin hardener 12 in base 16. While shatterable glass is preferred, the present invention may be employed with any rupturable membrane supported between cap 18 and base 16. [0037] Transverse wall 36, extending across and closing the upper end 34 of cap 18, may be integrally formed therewith or may be formed by a separate component placed therein.
  • Transverse wall 36 is readily puncturable by the insertion of a hypodermic needle or other sharp medical instrument.
  • the puncturability of transverse wall 36 is provided by the thinness of wall 36, where the wall is formed integrally with cap 18. Where wall 36 is formed separately from cap 18, the puncturability of wall 36 may be provided by its thinness or by the particular material from which it is formed, such as thin metal foil. Prior to puncturing, however, transverse wall 36 serves to enclose the interior 19 of cap 18, providing containment of liquid resin 14 therein.
  • the inserted sharp medical device is shown as a needle 40, such as a hypodermic needle.
  • a needle 40 such as a hypodermic needle.
  • any other sharpened medical device may also be employed in combination with the containment assembly 10 of the present invention.
  • the needle may be inserted into the open upper end 34 of cap 18.
  • the sharp point 42 of needle 40 punctures puncturable transverse wall 36. Due to the thinness and/or material forming wall 36, the wall is in close contact with needle 40 which may assist in providing a wiping action as the needle is inserted thereinto.
  • the needle progresses until the sharpened tip 40 makes contact with glass wafer 20.
  • the materials forming the compound are liquid, some of the combined material 50 will actually flow into the hollow interior channel of needle 40. This results in plugging the interior channel rendering the needle non-reusable.
  • the admixing of the liquid hardened resin with the resin hardener causes encapsulation of the needle 40 within base 16 rapidly, and desirably in a matter of seconds.
  • the needle 40 is thereby permanently encapsulated and contained within the containment assembly 10, preventing removal of the needle therefrom. Such containment prevents any occurrence of an accidental needle stick.
  • the containment assembly 10 with the needle permanently encapsulated therein may now be safely transported for disposal.
  • Useful hardenable resins include any liquid resin which when admixed with the liquid resin hardener cures in a sufficiently rapid time to be commercially acceptable for the device of the present invention. Usually, an acceptable hardening time is about 20 seconds to about 40 seconds. More desirably, the hardening time is about 20 seconds.
  • Useful resins include anaerobically curable resins, polyurethane polyacrylate resins, epoxy resins, cyanoacrylates, vinyl resins, silicone resins, and silicone-acrylate resins. Combinations and copolymers of such resin materials are also useful.
  • useful anaerobically curable resins include those based on mono- and poly(meth)acrylate monomers. Such resins are described, for example, as Patent Nos. 3,043,820 and 3,046,262 to Loctite Corporation, which are incorporated herein by reference.
  • Resin hardeners particularly useful with anaerobic curing resins include solutions of metal salts.
  • the use of salt solutions facilitates the mixing of the resin hardener with the hardenable resin to obtain rapid hardening.
  • Virtually any transition metal salt solution may be employed, but salt solutions of copper, iron, nickel and zinc are most desirable.
  • Examples of useful copper salts include copper octonate and the diketone salts of copper.
  • Accelerators typically employed with anaerobic systems may also be incorporated in the resin hardener component. Amines are frequently used as accelerators in compatible organic carriers, such as tetraethylene glycol esters. Amines may be effectively combined with saccharin. Hydrazine derivatives and sulfonamides are also useful as accelerators. A description of various useful accelerators can be found in U.S. Patent Nos. 3,203,941; 3,218,305; 4,180,640 and 4,287,330 to Loctite Corporation.
  • Useful cyanoacrylate resins include those described in U.S. Patent Nos.
  • Epoxy resins useful in the present invention includes those described in
  • Typical resin hardeners for epoxies, such as amines or thiol compounds may be employed.
  • the relative proportions of the two parts of various curable compositions may be chosen to ensure rapid cure.
  • resin and hardener components are admixed in approximately equimolar proportions.
  • anaerobic compositions or cyanoacrylate compositions are employed, amounts of about 0.05 to about 1 gram of resin is generally used for every 0.05 to about 0.025 grams of the resin hardener.
  • Conventional proportions of resin to resin hardener may be employed, depending on the particular
  • Containment assembly 60 includes a base 62 which supports hardenable resin and a cap 64 which supports the liquid resin hardener. It should be understood that, in the alternative, base 62 may support the hardener and cap 64 may support the resin.
  • Base 62 is generally a cup-shaped member having a closed bottom surface 66 and an open upper end 68 with a cylindrical side wall 70 extending therebetween.
  • cap 64 is also generally cup-shaped, having an open upper end 72, a closed bottom wall 74, and a side wall 76 extending therebetween.
  • bottom wall 74 may be formed by a shatterable material such as glass, or shatterable plastic which is easily shattered upon needle insertion as described above with respect to the embodiment of Figures 1-5.
  • side wall 76 includes a conical wall portion 76.
  • the conical shape of wall portion 76 helps guide the inserted needle towards the shatterable bottom wall 74, which is generally positioned at the apex thereof.
  • the bottom wall includes an upwardly extending annular ridge 75. Ridge 75 accommodates the needle as it is inserted.
  • the cup-shaped cap 64 is formed of rigid plastic which resists needle puncture.
  • Cap 64 is inserted in position within the interior 71 of base 70, and includes a radially extending annular lip 78 which sits atop a rim-like seat 73 adjacent to the open upper end 68 of base 62.
  • the securement of cap 64 to base 62 may be by frictional engagement or may be provided by other mechanical securement techniques such as a snap-fit.
  • the engagement of lip 78 with seat 73 may be established such that a seal is provided therebetween.
  • FIG. 6 operates in a substantially similar manner to the embodiments shown in Figures 1-5 whereupon shattering of the bottom wall 74, the liquid resin hardener is placed in immediate communication with the hardenable resin.
  • the extremely miscive nature of the components provides for hardening around the inserted instrument.
  • Containment assembly 80 shown in Figure 7, includes a base 82 referred to as a lower reservoir and a cap 84 referred to as an upper reservoir which are substantially identical to those shown and described with respect to Figure 6.
  • the bottom wall 86 of cap 84 is formed of a separate member which is attached to the conical portion 89 of side wall 88 by a releasable snap fit.
  • bottom wall 86 which is itself conical in shape, includes an outwardly extending annular rib 90 which is snap-fitted into a corresponding groove 92 at the distal end of side wall 88.
  • bottom wall 86 and side wall 88 provide for releasable securement thereof.
  • bottom wall 86 is detached from side wall 88 so as to place the components respectively contained in base 82 and cap 84 in immediate communication.
  • the side wall 88 is formed of rigid plastic to assure that the inserted instrument is guided toward conical bottom wall 86 so as to effect detachment thereof.
  • cap 84 may include a puncturable transverse covering 95 which encloses the interior of cap 84. Covering 95 functions similar to transverse wall 36 of the embodiment of Figures 1-5.
  • Figure 8 shows a further embodiment of the present invention which is substantially similar to the embodiment shown in Figure 7 having a base 91 and cap 93.
  • bottom wall 97 is a generally flat member having an internally directed annular groove 98 which is attachable to an outwardly extending annular rim 99 on the side wall 95 of cap 93.
  • insertion of the medical device serves to detach bottom wall 97 from the side wall so as to place the respective component in communication.
  • FIG. 9 an additional embodiment of the present invention is shown.
  • This embodiment which is substantially similar to the embodiments of Figures 6-8, includes a base 100 and a cap 102.
  • Cap 102 has a sidewall 106 defining at the bottom thereof, and an opening 103.
  • Opening 103 is fitted with a releasable plug 104, which may be attached to the circumferential inner edge of opening 103 by inwardly directed detents 108.
  • the plug 104 which may be formed of impenetrable plastic, is dislodged from the sidewall 106 upon instrument insertion so as to allow communication between the respective materials held in the cap and the base.
  • Figure 10 shows a further embodiment of the invention where a base 116 and a cap 118 are separated by a glass wafer 120.
  • the cap 118 may include a funnel or conically shaped interior cavity 117.
  • base 116 may include a conically shaped upper interior section 119 which serves to funnel the contents of cap 118 to the bottom of the base 116 after glass wafer 120 is shattered.
  • the present invention contemplates placing or arranging plural containment assembly of the types shown in Figures 1-9 in a mutually supported array.
  • the containment assemblies may be held in a 10 x 10 arrangement in a tray 150 shown in Figure 11.
  • Tray 150 includes compartments 152 which may each support one containment assembly.
  • compartments 152 may each support one containment assembly.
  • other number arrays may also be employed.
  • other techniques may also be used in supporting plural containment assemblies in a grid-like array.
  • container 200 for encapsulating a hypodermic needle.
  • container 200 is a three-component structure, comprising a container housing 202, a first cup 204 and second cup 206. While each of the housing 202, first cup 204 and second cup 206 is formed of molded plastic, it should be appreciated that other materials suitable for encapsulation purposes may be used.
  • Container housing 202 is of generally elongate, vial -like configuration having a closed lower end 208 and an open upper end 210 and an interior space 212.
  • the lower end of the housing 202 tapers downwardly to a narrowing interior space toward the closed end 208 while the upper end of the housing 202 flares outwardly to an expanding interior surface toward the upper end 210.
  • Adjacent the upper end of the housing 202 a circumferential recess 214 is provided for receipt therein of the first cup 204, as will be described.
  • First cup 204 comprises sidewalls 216, a lower wall 218 and an open upper end 220.
  • First cup 204 is particularly formed to have a tapering configuration narrowing toward the lower wall 218 and is adapted for insertion into the flared upper end of container housing 202 as shown.
  • First cup 204 is formed to have an outwardly extending flange 222 that is particularly configured to be received in interference fit in housing recess 214.
  • first cup 204 In assembly with the housing 202, first cup 204 is disposed therein such that lower wall 218 is axially spaced from the closed end 208 defining thereby a lower chamber 224 for receipt therein of the sharp extent of a hypodermic needle as will be detailed. First cup 204 further defines in assembly with the container housing 202, a middle chamber 226. Middle chamber 226 is adapted to accommodate therein a first component of a two- component hardenable compound. In one arrangement, a liquid resin 14 of the type described herein is accommodated in middle chamber 226 of first cup 204.
  • Lower wall 218 of first cup 204 while supporting the liquid resin 14 therein, is formed to be penetrable by the sharp extent of a hypodermic needle or other sharp object for receipt therethrough. While some seepage of compound may occur through the lower wall 218, it is intended that the hardenable compound be substantially retained in the middle chamber 226.
  • First cup 204 is further formed at its upper end 220 to have a circumferential recess 228 for receipt therein of the second cup 206.
  • Second cup 206 is of generally cylindrical configuration having circumferential side walls 230, a rupturable bottom wall 232 and an open upper end 234. Second cup 206 further includes an outwardly projecting circumferential flange 236 particularly configured for interference fit with recess 228 of first cup 204. It should be appreciated that while assembly of the first cup 204 in housing 202 and the assembly of the second cup 206 in the recess of the first cup 204 are described as being in interference fit, other suitable techniques for assembling these components may be used within the context of the invention. In assembly with the first cup 204 and the housing 202, the second cup 206 defines an upper chamber 238 that particularly accommodates a liquid resin hardener 12, of the type described herein.
  • liquid resin 14 is shown and described as being accommodated in middle chamber 226 and a liquid resin hardener 12 is described as being contained in upper chamber 238, the resin 14 and hardener 12 may be reversed.
  • a pierceable foil lid 240 is provided over the upper chamber 238 to hold the liquid resin hardener 12 therein.
  • the bottom wall 232 of the second cup 206 is disposed above the middle chamber 226.
  • the bottom wall 232 is formed to have a series of radially projecting weakened score lines 242 that are adapted to break upon the insertion of the sharp extent of an object to be encapsulated in the container 200.
  • the rupturable bottom wall 232a is formed to have a rupturable hinged door 244. Hinged door
  • the weakened score lines 245 are adapted to break open and the door 244 is rotatably openable about the non-scored edge which effectively provides a flexible hinge.
  • the bottom wall 232b is provided with a plug 246 that is adapted to fully break and separate from the rupturable bottom wall 232b upon insertion of the sharp extent of the object to be encapsulated.
  • Hypodermic needle 248 comprises a hub 250 and an elongate sharp extent 252.
  • the sharp extent 252 first pierces through foil lid 240 and then through the rupturable bottom wall 232 of the second cup 206.
  • the liquid resin hardener 12 flows under gravity completely out from the upper chamber 238 into the middle chamber 226 wherein it mixes with the liquid resin 14 to form hardenable compound 254.
  • Insertion of the hypodermic needle 248 continues with the sharp extent 252 penetrating through the lower wall 218 of the first cup 204 until the hub 250 lies substantially within the middle chamber 226. Once the hub is fully disposed in middle chamber 226, the compound 254 hardens around the hub 250 for suitable encapsulation.
  • the sharp extent 252, having penetrated through lower wall 218, projects into the lower chamber 224 wherein it is completely surrounded within the housing 202 and protected thereby.
  • the encapsulated syringes may be deposited in a tray or the like for suitable transport and disposal.
  • Example 1 is an example of an anaerobically curable two-part composition useful in the present invention. Part 1 and Part 2 of the compositions are set for the below in weight percent based on the total weight of each part.
  • Part 1 Components (Resin) Wt%
  • part 1 of the anaerobic composition were placed in the cap of the inventive device.
  • part 2 (resin hardener) of the anaerobic composition were placed in the base.
  • the barrier of the present device was then removed, permitting each of the parts to be combined and rapidly cure around the needle inserted therein.
  • the curing time was within the range of about 20 to about 40 seconds.
  • Example 2 demonstrates a cyanoacrylate composition used in the present invention.
  • the cyanoacrylate composition was formulated into a two-part composition, each of the parts being described in percent weight of the individual parts.
  • Example 2
  • Part 1 Components (Resin) Wt%
  • Part 1 was placed in the cap of the inventive device in an amount of about 0.5 grams.
  • Part 2 was placed in the base of the device in amounts of about 0.025 grams. The barrier was removed, permitting combination of Part 1 and Part 2 and subsequent curing to fully encapsulate the needle therein.
  • Example 3 demonstrates a cyanoacrylate composition used in the present invention.
  • the cyanoacrylate composition was formulated into a two-part composition, each of the parts being described in percent weight of the individual parts.
  • Part 1 Components (Resin) Wt%
  • Part 1 was placed in the cap of the inventive device in an amount of about 0.5 grams.
  • Part 2 was placed in the base of the device in amounts of about 0.025 grams. The barrier was removed, permitting combination of Part 1 and Part 2 and subsequent curing to fully encapsulate the needle therein.
  • Liquid Hardener may be placed in either the cap or the base of the encapsulant container.

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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)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

L'invention concerne un système de sécurité (10) destiné à encapsuler un instrument médical pointu ou tranchant. Ce système de sécurité comprend un récipient muni d'une extrémité supérieure (34) permettant l'insertion de cet instrument médical. Ce récipient contient une paire de composants liquides (14 et 12) d'un composé durcissable, ces composants étant séparés par une cloison cassable (20). Lors d'une rupture de la cloison due à l'insertion de l'instrument médical dans le récipient, les composants se mélangent.
PCT/US2001/025621 2000-08-17 2001-08-15 Systeme de securite destine a encapsuler un instrument medical pointu ou tranchant WO2002013889A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001286502A AU2001286502A1 (en) 2000-08-17 2001-08-15 Containment system for encapsulating a sharp medical instrument

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22587400P 2000-08-17 2000-08-17
US60/225,874 2000-08-17

Publications (1)

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WO2002013889A1 true WO2002013889A1 (fr) 2002-02-21

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US6779657B2 (en) 2001-06-06 2004-08-24 Closure Medical Corporation Single-use applicators, dispensers and methods for polymerizable monomer compound
WO2003016834A1 (fr) 2001-08-16 2003-02-27 Closure Medical Corporation Combinaison de composants multiples
WO2006013934A1 (fr) * 2004-08-04 2006-02-09 Ajinomoto Co., Inc. Aiguille de communication utilisee pour faire communiquer deux recipients ou plus
DE102006015238A1 (de) * 2006-03-30 2007-10-04 S&C Polymer Silicon- und Composite-Spezialitäten GmbH Einwegverpackungssystem zur Lagerung und Ausbringung von Mehrkomponentenmaterialien
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US20020066686A1 (en) 2002-06-06

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