Having Means For Indicating Device Is Defective , Used, Or Tampered With Patents (Class 604/111)
  • Patent number: 6565529
    Abstract: A plastic prefilled syringe (10) including a syringe body (11) and a plunger assembly (12), the syringe body (11) having opposed first (13) and second (14) ends and an inner wall (16) defining a cylindrical chamber (15) which contains an injectable solution (100), the first end (13) of the syringe body (11) being sealed by a closure and the second end (14) incorporating an opening (18), the plunger assembly (12) including a plunger shaft (22) extending through said opening (18) and a stopper (24) secured at an end of said shaft (22) within said chamber, the plunger assembly (12) being movable within the chamber with the stopper (24) being operable to seal the opening (18) wherein the plunger assembly (12) includes barrier means (26 and 29) on said shaft (22) the barrier means (26 and 29) being adapted, in conjunction with a part of the syringe body (16 and 19), to inhibit access to the injectable solution (100) through the opening (18).
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: May 20, 2003
    Assignee: Astra Pharmaceuticals PTR Ltd.
    Inventors: Michael Browning Kimber, Frank Alexander Popovsky
  • Patent number: 6547764
    Abstract: A disposable double pointed injection needle has a needle hub to which a thin needle cannula is permanently fasten and which needle hub can be mounted on to a syringe comprising a dose setting and injection mechanism and a cartridge containing a liquid medicine to be injected subcutaneously into a human body. The needle hub is provided with a safety shield guided on the outside surface of the needle hub. The safety shield is urged in a direction away from the needle hub by a spring located between the needle hub and the safety shield. The safety shield has a number of protrusions guided in guiding tracks on the outside surface of the needle hub. The guiding tracks are designed such that the safety shield during injection is moved towards the needle hub, and after injection is moved away from the needle hub by the spring and locked in an irreversible position where the safety shield covers the needle cannula and prevents accidental needle stick injuries.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: April 15, 2003
    Assignee: Novo Nordisk A/S
    Inventors: Carsten Gerner Larsen, Lars Stenholt, Anders Molin, Jørn Rex, Bjørn Gullak Larsen
  • Publication number: 20030045833
    Abstract: Apparatus and Method for Gripping and Retaining a Surgical Needle to assist in the Process of Suturing.
    Type: Application
    Filed: June 12, 2002
    Publication date: March 6, 2003
    Inventor: Mervyn John Murdoch
  • Patent number: 6520935
    Abstract: A tip cap assembly is provided for positive sealing engagement with the tip of a syringe barrel of a syringe. The tip cap assembly includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap assembly further includes an outer cap engaged with the inner cap, and a collar for mounting the tip cap assembly to the syringe barrel. In addition, the outer cap includes a plurality of frangible portions for evidencing tampering and for connecting the outer cap to the collar.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: February 18, 2003
    Assignee: Becton, Dickinson and Company
    Inventors: Hubert Jansen, Claude Imbert
  • Publication number: 20030032923
    Abstract: A prefilled syringe of cartridge barrel having a tamper evident closure. Tamper evidence is provided by: a frangible tip seal which is integral with the tapered tip of the barrel; a frangible tip cap covering the tip, the tip seal and a portion of the distal end of the barrel; and an overwrap covering the frangible tip cap and the distal end of the barrel sealed to the distal end of the barrel by a tamper evident seal. The tapered tip is optionally equipped with a luer collar to receive an external luer connector Alternatively, the tapered tip can be provided with a bore therethrough which can be closed with an elastomeric plug and the external connector can be a tubing conduit.
    Type: Application
    Filed: October 7, 2002
    Publication date: February 13, 2003
    Inventors: Michael N. Eakins, Ernest Balestracci, Ernst Schramm, John J. Niedospial
  • Publication number: 20030009131
    Abstract: In a fluid delivery system for delivering a fluid into an individual's body, a leak detection system indicates that the fluid has leaked outside a normal fluid path of the fluid delivery system, such as near an infusion site or a fluid-filled reservoir. Preferably, the leak detection system includes a chemical positioned near the infusion site that reacts with preservatives in the leaking fluid to generate a highly visible, brightly colored, chemical complex. Alternatively, mechanical, electro-optical, electrochemical, electrical or other chemical systems may be used to detect the presence of fluid that is leaking near the infusion site. Further, the leak detection systems may be used to detect the presence of fluid that is leaking from or near other locations within the fluid delivery system, such as on or near a fluid-filled reservoir, or a flexible tube coupled between the reservoir and the infusion site.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Applicant: MEDTRONIC MINIMED, INC.
    Inventors: William P. Van Antwerp, Sheldon B. Moberg, Cary D. Talbot
  • Patent number: 6485460
    Abstract: A prefilled syringe of cartridge barrel having a tamper evident closure. Tamper evidence is provided by: a frangible tip seal which is integral with the tapered tip of the barrel; a frangible tip cap covering the tip, the tip seal and a portion of the distal end of the barrel; and an overwrap covering the frangible tip cap and the distal end of the barrel sealed to the distal end of the barrel by a tamper evident seal. The tapered tip is optionally equipped with a luer collar to receive an external luer connector. Alternatively, the tapered tip can be provided with a bore therethrough which can be closed with an elastomeric plug and the external connector can be a tubing conduit.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: November 26, 2002
    Assignee: Bracco Diagnostics, Inc.
    Inventors: Michael N. Eakins, Ernest Balestracci, Ernst Schramm, John J. Niedospial, Jr.
  • Patent number: 6461329
    Abstract: An infusion leak detection system indicates that a fluid to be delivered into an individual's body has leaked near an infusion site. The infusion site is at a location where a delivery element, such as a cannula, needle, or the like, penetrates an individual's body. Preferably, one end of the delivery element is attached to a delivery device and the other end is inserted through an individual's skin terminating in an individual's subcutaneous tissue. The delivery element establishes fluid communication between the delivery device and the individual's subcutaneous tissue. In alternative embodiments, the delivery element may terminate in an other tissue such as, muscle, organ, inter-peritoneal, intra-peritoneal, or the like. The delivery device is attached to the surface of the individual's skin.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: October 8, 2002
    Assignee: Medtronic MiniMed, Inc.
    Inventors: William P. Van Antwerp, Sheldon B. Moberg
  • Publication number: 20020133119
    Abstract: A prefilled syringe of cartridge barrel having a tamper evident closure. Tamper evidence is provided by: a frangible tip seal which is integral with the tapered tip of the barrel; a frangible tip cap covering the tip, the tip seal and a portion of the distal end of the barrel; and an overwrap covering the frangible tip cap and the distal end of the barrel sealed to the distal end of the barrel by a tamper evident seal. The tapered tip is optionally equipped with a luer collar to receive an external luer connector. Alternatively, the tapered tip can be provided with a bore therethrough which can be closed with an elastomeric plug and the external connector can be a tubing conduit.
    Type: Application
    Filed: January 12, 2001
    Publication date: September 19, 2002
    Inventors: Michael N. Eakins, Ernest Balestracci, Ernst Schramm, John J. Niedospial JR.
  • Patent number: 6391008
    Abstract: A safety hypodermic syringe includes a barrel, a needle seat airtightly contained in the barrel, an elastic ring contained in the needle seat, a stopper, and a plunger coupled with the stopper. A needle is able to threadedly engage with the needle seat. After an injection treatment, the plunger can be pulled to draw the needle seat, together with the needle engaged therewith, back into the barrel, and can be removed from the stopper for recycling. With the syringe of the invention, the plunger thereof is recyclable, the needle hub thereof is able to be securely installed, the needle thereof is not able to stick out from the barrel thereof, remaining medicine therein after use is less than conventional syringes, and whether it has been used is able to be plainly indicated by a security bar.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: May 21, 2002
    Inventor: Hsi-Chin Tsai
  • Patent number: 6379330
    Abstract: A container (1) for a hypodermic syringe (3) and of the type which allows it to be seen or observed in another manner that the container has been opened. The container (1) comprises a plug (5) having more than one tamper-proof mechanism. This ensures both that the hypodermic syringe (3) can reach the user in a state which allows it to be seen whether it has been opened, and that, after use, it can be disposed of in such a state that re-use is impeded considerably.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: April 30, 2002
    Assignee: Leo Pharmaceutical Products, Ltd. A/S
    Inventors: Carsten Lund, Erik Torngaard Hansen
  • Patent number: 6336003
    Abstract: A reusable heating device comprises a casing to be disposed vertically, the casing including a circuit element receiving chamber and a heater receiving chamber having a front opening, a lid for at least covering the front opening of the heater receiving chamber, a heater situated in the heater receiving chamber, and electric circuit means situated in the circuit element receiving chamber. The heater includes a heater segment coextensive with and disposed in the front opening and an electric heating element attached to a backside and the cover unit of the heater segment. The heater segments have U-shaped channels on a front side thereof to receive therein a Disposable Cellular Pouch through which an instillation liquid to be heated flows.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: January 1, 2002
    Assignee: Automatic Medical Technologies, Inc.
    Inventors: Michael Mitsunaga, Yoshiaki Yamamoto
  • Publication number: 20010003150
    Abstract: A tip cap is provided for positive sealing engagement with the tip of a syringe barrel. The tip cap includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap further includes an outer cap engaged with the inner cap to limit or prevent both axial movement and rotational movement therebetween. The outer cap includes an array of threads for threaded engagement with a luer collar. The luer collar may be a separate component mountable to a syringe barrel or an integral part of the syringe barrel.
    Type: Application
    Filed: January 22, 2001
    Publication date: June 7, 2001
    Inventor: Claude Imbert
  • Patent number: 6217564
    Abstract: A medical coupling has male and female members (1, 2) which push fit together, and a screw cap (7) which secures the members against separation. To prevent unintentional release of the cap, locking means, such as a ratchet and pawl mechanism, are provided between the cap and female member. An outer shell (25) can enclose the cap for providing an enclosure around the fluid connection to deter bacterial contamination. Alternatively a separate capsule can enclose the coupling for this purpose. The two members and cap are connectable by holding gripping portions which are located remotely from the parts forming the fluid connection to reduce risk of contamination. A valve system is associated with the female member for closing a flexible tube connected to this member and to displace liquid to fill the space left in this member when the male member is disconnected from it.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: April 17, 2001
    Assignee: Clinical Product Development Limited
    Inventors: Joseph Lennox Peters, James William Kerr
  • Patent number: 6196998
    Abstract: A tip cap assembly is provided for positive sealing engagement with the tip of a syringe barrel of a syringe. The tip cap assembly includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap assembly further includes an outer cap engaged with the inner cap, and a collar for mounting the tip cap assembly to the syringe barrel. In addition, the outer cap includes a plurality of frangible portions for evidencing tampering and for connecting the outer cap to the collar.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: March 6, 2001
    Assignee: Becton Dickinson and Company
    Inventors: Hubert Jansen, Claude Imbert
  • Patent number: 6193688
    Abstract: A tamper evident protector cap for a pre-filled syringe or cartridge barrel stoppered by an elastomeric closure. The protector cap securely retains the elastomeric closure during in-line processing, handling and shipment. The protector cap includes frangible brackets which on tampering break away from the protector cap evidencing that product integrity might have been jeopardized and the product should not be used.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: February 27, 2001
    Assignee: Bracco Diagnostics, Inc.
    Inventors: Ernest Balestracci, John J. Niedospial, Jr.
  • Patent number: 6190364
    Abstract: A tip cap is provided for positive sealing engagement with the tip of a syringe barrel. The tip cap includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap further includes an outer cap engaged with the inner cap to limit or prevent both axial movement and rotational movement therebetween. The outer cap includes an array of threads for threaded engagement with a luer collar. The luer collar may be a separate component mountable to a syringe barrel or an integral part of the syringe barrel.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: February 20, 2001
    Assignee: Becton, Dickinson and Company
    Inventor: Claude Imbert
  • Patent number: 6126640
    Abstract: A protective sealing barrier for a syringe is disclosed. The protective sealing barrier can be configured to safeguard the sterility of the syringe and any contents held therein, as a barrier against leakage of any contents held within the syringe, or both. The syringe includes a luer tip and a collar having terminal ends which are preferably substantially co-planar with one another. The barrier consists of a membrane which is disposed in substantially entire surface contact with the terminal ends of both the luer tip and the collar. The membrane can be selected from a material permitting the syringe to be irradiated or heat sterilized. Likewise, the membrane can be chosen from a material permitting the syringe to be sterilized by various gas sterilization procedures.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: October 3, 2000
    Assignee: Becton, Dickinson and Company
    Inventors: Robyn Laurie Tucker, Sandor Gyure, Robert B. Odell
  • Patent number: 6120479
    Abstract: A disposable auto-destruct syringe is disclosed which includes a syringe barrel for holding an injectable fluid, a piston reciprocatable in the barrel and sealingly engaging the barrel wall, a plunger having a forward portion normally positioned in the barrel and a rearward portion to be manipulated by a user of the syringe, a coupling mechanism for connecting the piston with the plunger to permit axial movement of the piston in the barrel by operation of the plunger, and a deforming structure for permanently deforming the barrel wall to break the seal between the piston and the barrel wall. The deforming structure is in the form of cutters or burrowing elements mounted by-way of elastic arms to one of the piston and the plunger. The deforming structure is movable from an at rest position wherein the barrel wall is not deformed, to a barrel wall engaging position wherein the barrel wall is permanently deformed by the deforming structure.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: September 19, 2000
    Inventors: Douglas C. V. Campbell, Peter Frise, Frank Johnson
  • Patent number: 6102893
    Abstract: A single-use disposable syringe device has a tubular body with a nose portion for receiving a hollow needle that communicates with an inner portion of the tubular body. The device also includes a sliding plunger provided opposite the nose portion inside the body, which is actuatable by the user at an upper end. The plunger is arranged in relation to the tubular body in a position where an innermost end defines an inner useful volume that is at least partially filled by a liquid medicinal substance. The device further includes a cap for protecting at least the nose portion and a protective sheath to be used after an injection. The cap is slidably mounted in a retracted position on and coaxial to the tubular body and has a length sufficient to completely cover the needle in an extended position. The cap is connected to the sheath or to the tubular body by a tamper-proof system.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: August 15, 2000
    Assignee: Biodome
    Inventor: Antoine Aneas
  • Patent number: 6077259
    Abstract: A contamination resistant connector for medical tubing includes a first portion with a first fluid passage therethrough occluded by a covered normally closed first valve and a second portion with a second fluid passage therethrough. The second portion is conjugate to and releasably attachable to the first portion with the second fluid passage also being occluded by a covered normally closed second valve. The first valve and the second valve are both only uncovered and opened so that the first fluid passage and the second fluid passage are fluidly communicatively connected, and closed and covered by the respective selective conjugate engagement and disengagement of the first portion and the second portion.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: June 20, 2000
    Assignee: Becton, Dickinson and Company
    Inventors: Richard J. Caizza, Michael Carter, Richard L. Griffith
  • Patent number: 6057689
    Abstract: An apparatus for detecting leaks in a fluid-filled device used to treat a patient's tissue includes an catheter having an expandable device defining a fluid reservoir about the distal end of the catheter. An internal electrode is in electrical contact with a conductive fluid within the fluid reservoir. A grounding electrode is outside of the fluid reservoir, in electrical contact with the patient's tissue. Voltage is supplied to the internal electrode and the grounding electrode. Where a leak occurs in the expandable device, conductive fluid will contact the patient's tissue, thus creating an electrical current path between the internal electrode and the grounding electrode. This so-called "leak current" is used to generate a leak alarm signal.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: May 2, 2000
    Assignee: Gynecare, Inc.
    Inventor: Vahid Saadat
  • Patent number: 6053892
    Abstract: A hypodermic syringe head with tamper-evident closure for a syringe barrel, having an injection cannula (4) which is mounted in a cannula carrier (5) from which it protrudes on both axial ends and which is disposed in a cannula carrier guide, so as to be movable relative thereto, and a cannula guard cap (1) , which is adjoined via a rated breaking point (2) by an anchoring element (3) that solidly holds the cannula carrier guide and can be affixed to the barrel neck, wherein a sealing disk (7) is received in the anchoring element, and two axially symmetrical guide grooves (15) for a guide peg (16) of the cannula carrier guide are embodied on the circumference of the cannula carrier, the guide grooves extending at a predetermined inclination substantially to form a V and opening into one another on their end toward the sealing disk, and in the unactuated state of the hypodermic syringe head, the guide peg engages the orifice region (15') of the guide grooves that is oriented toward the sealing disk, and upon a
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: April 25, 2000
    Assignee: Becton Dickinson France S.A.
    Inventor: Philippe Meyer
  • Patent number: 6036458
    Abstract: An automated phaco pack identification system in accordance with the present invention generally includes a cartridge or cassette assembly for handling irrigation and aspiration fluids to and from a surgical handpiece, a control console having a drawer or other means for receiving and engaging the cartridge assembly, a computer, and control apparatus, in communication with the computer, for regulating irrigation and aspiration fluid flow. Importantly, the present invention also includes, for example, a bar code element disposed on the cartridge and a bar code reader disposed in the control console for providing an active interface between the cartridge and the computer. The communication feature functions to automatically provide cartridge characteristics, such as serial number and history of the cartridge, through the computer and to a visual display monitor for retrieval by a user of the present invention.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: March 14, 2000
    Assignee: Allergan Sales, Inc.
    Inventors: Mark S. Cole, Kenneth E. Kadziauskas, Tom B. Sutton
  • Patent number: 6004299
    Abstract: An injection vessel including a glass cartridge; a rubber stopper (front stopper) and a rubber stopper (end stopper) respectively fitted to a front side and a rear side of the glass cartridge slidably in an axial direction of the glass cartridge in close contact with an inner face of the glass cartridge; a luer lock hub attached to the front end side of the glass cartridge in which a nozzle thereof is protruded outwardly; a finger grip attached to the rear end side of the glass cartridge; a plungerrod for pressing the rubber stopper (end stopper); a nozzle cap covering the nozzle; and wherein a collar consisting of a separate member is protruded equivalently or more than the nozzle or a collar portion with an elevated height attached directly to the luer lock hub is provided at a surrounding of the nozzle of the luer lock hub whereby a front end height of the collar portion is equivalent to or higher than a height of the nozzle.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: December 21, 1999
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kazuhiko Arai, Tadashi Inoue
  • Patent number: 5961495
    Abstract: A medication delivery pen having a repeat-dose feature that is performed by using a pull-push operation. In particular, the medication delivery pen includes means for determining whether the medication delivery pen is armed and a variety of novel drive mechanisms. In addition, the medication delivery pen also includes a priming control mechanism that allows the user to easily prime medication delivery pen prior to arming the pen.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: October 5, 1999
    Assignee: Becton, Dickinson and Company
    Inventors: Daniel A. Walters, Marco Carroll Perry, Hyung J. Lee
  • Patent number: 5885249
    Abstract: Disclosed is a syringe with a cap including a syringe main body (30) having a needle attached to the extreme end thereof and the cap (40) for covering the needle (20) of the syringe main body (30), wherein the cap (40) includes a cap securing portion (50) secured to the extreme end of the syringe main body (30) and a cap main body (70) pivotally coupled with the cap securing portion (50) through a hinge portion (60) and the cap main portion (70) includes an accommodating portion for accommodating the needle (20) and a cut-out portion (72) which communicates with the accommodating portion and into which the needle (20) can go in and from which the needle can be taken out, the syringe with cap comprising securing elements (52, 73, 80) capable of securing the cap to the cap securing portion (50) when the syringe is used.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: March 23, 1999
    Assignee: NIFCO Inc.
    Inventor: Masahiro Irisawa
  • Patent number: 5851200
    Abstract: As a sealing structure for a syringe, a waterproofing film is adhered to the surface of a cap (6), a barrel (3) and a cylinder body (2) to cover fitting areas therebetween. The film is made of synthetic resin having a melting point higher than the temperature of flowing water vapor in post sterilization.As a sliding valve for a syringe, an inclined lip (24) is continuously protruded from the outer surface of a short cylindrical body (22). At the one end of the body, an annular lip (23) is formed. The inclined lip has a recess (34) for introducing a medicine liquid. The inclined lip may be formed in plural pairs of inverted , in plural stages, in plural strips in an axial direction, or in a shape to cross to form a sea slug wall. The sliding valve can be inserted with no inclination so that stagnant of air is not produced.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: December 22, 1998
    Assignee: Tetsuro Higashikawa
    Inventors: Tetsuro Higashikawa, Hirokazu Suzuki
  • Patent number: 5820603
    Abstract: A protective sealing barrier for a syringe is disclosed. The protective sealing barrier can be configured to safeguard the sterility of the syringe and any contents held therein, as a barrier against leakage of any contents held within the syringe, or both. The syringe includes a luer tip and a collar having terminal ends which are preferably substantially co-planar with one another. The barrier consists of a membrane which is disposed in substantially entire surface contact with the terminal ends of both the luer tip and the collar. The membrane can be selected from a material permitting the syringe to be irradiated or heat sterilized. Likewise, the membrane can be chosen from a material permitting the syringe to be sterilized by various gas sterilization procedures.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: October 13, 1998
    Assignee: Becton Dickinson and Company
    Inventors: Robyn Laurie Tucker, Sandor Gyure, Robert B. Odell
  • Patent number: 5807343
    Abstract: A protective sealing barrier for a syringe is disclosed. The protective sealing barrier can be configured to safeguard the sterility of the syringe and any contents held therein, as a barrier against leakage of any contents held within the syringe, or both. The syringe includes a luer tip and a collar having terminal ends which are preferably substantially co-planar with one another. The barrier consists of a membrane which is disposed in substantially entire surface contact with the terminal ends of both the luer tip and the collar. The membrane can be selected from a material permitting the syringe to be irradiated or heat sterilized. Likewise, the membrane can be chosen from a material permitting the syringe to be sterilized by various gas sterilization procedures.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 15, 1998
    Assignee: Becton Dickinson and Company
    Inventors: Robyn Laurie Tucker, Sandor Gyure, Robert B. Odell
  • Patent number: 5693026
    Abstract: A disposable thermoplastic hypodermic syringe having a hollow metallic needle and thermoplastic body portions at least part of which are formed of temperature calibrated thermoplastic having a full flow liquefaction temperature corresponding to point on the time-death curve for microbial life at which the most resistant spore forms are killed within the time the thermoplastic can be liquefied and resolidified. Heat resistant indicia can be applied to the syringe in a manner to reappear on the solidified thermoplastic mass.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: December 2, 1997
    Assignee: Spintech, Inc.
    Inventor: Ronald P. Spinello
  • Patent number: 5651774
    Abstract: An improved hypodermic syringe (5) with safety shield, and method of using same, is disclosed. The hypodermic syringe has an elongate hollow cylindrical barrel (7) with a grip flange (11) formed at a first end (8) thereof, and a hypodermic needle (12) attached to a second end (9) thereof, and in fluid communication with the hollow interior of the barrel. The syringe is provided with a reciprocable plunger assembly (15). An elongate hollow cylindrical safety shield (20) is positioned coaxially about the barrel in a retracted position so that the needle projects axially out of the safety shield for use. The safety shield is constructed and arranged for movement on the barrel from the retracted position into an extended position in which the needle is housed within the safety shield. The safety shield has an integral end shield (36) which can be moved into a closed position transverse to the length of the safety shield for fully enclosing the needle within the safety shield.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: July 29, 1997
    Assignee: William J. Taranto
    Inventors: William J. Taranto, Norman C. Maarschalkerweerd
  • Patent number: 5647849
    Abstract: A self-contained syringe includes a syringe barrel with a fluid receiving chamber. A plunger is slidably disposed in the chamber. A needle cannula is affixed to the distal end of the syringe barrel. A cap is releasably secured over proximal portions of both the plunger and the syringe barrel. A tubular shield is releasably engaged in an intermediate position on the syringe barrel such that distal portions of the shield surround the needle cannula. A removable or frangible sterile seal is secured over the extreme distal end of the shield. The cap and the seal may be removed immediately prior to use. The shield may then be moved proximally into a proximal position which exposes the needle cannula for use. The shield may then be moved distally and locked into distal position where the needle cannula is protectively surrounded.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: July 15, 1997
    Assignee: Becton, Dickinson and Company
    Inventor: Gerald James Kalin
  • Patent number: 5645194
    Abstract: A method for filling and using an infusion bag useful in medicinal and related applications. The infusion bag comprises a bladder having at least two ports, an inlet port and an outlet port. The inlet port includes a valve which can be moved to an open position for filling of the bladder and then moved to a closed position to seal the bladder. The outlet port communicates with a catheter or the like.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: July 8, 1997
    Assignee: U.S. Medical, Inc.
    Inventor: Clifford A. Tyner
  • Patent number: 5645824
    Abstract: A color changing reagent composition for coating onto syringe needles and other needle containing medical devices which upon contact with such bodily fluids as blood, mucous, saliva, and semen will cause the composition coated needle to change in color to signal a prior use and contamination with a possibly infected bodily fluid. The preferred composition is selected from the group consisting of guaiac acid, benzidine, Barfoeds solution, Benedicts solution, cresol, catechol, phenylenediamine, Haynes solution, phenol, leuco malachite green, leuco-crystal violet, peroxidase, pseudoperoxidase, orthotolodine, orthordianisidine, cumene hydroperoxide, tretramethylbenzedene and 2,2-azinodi-(3-ethylbenzyl)azoline sulfunic acid. After the coated needle comes in contact with a bodily fluid having a catalyst it will, upon oxidation, change from being in a colorless state to having a visually detectable color.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: July 8, 1997
    Inventors: Min H. Lim, Michael G. Marinangleli
  • Patent number: 5643223
    Abstract: A medicinal dispenser features a reservoir having an internal volume for supporting a liquid, a neck portion extending from the internal volume to a distal tip having an opening for dispensing the liquid from the reservoir, and a removable cover having a cap portion for sealing the opening when the cover is securely positioned over the reservoir. The medicinal solution dispenser is structured to protect the orifice, from which solution flows from the dispenser, as well as portions proximate to the orifice, from contaminants in the air or from manual contact.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: July 1, 1997
    Inventor: Richard K. Lee
  • Patent number: 5624402
    Abstract: A tip cap is provided for positive sealing engagement with the tip of a syringe barrel. The tip cap includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap further includes an outer cap engaged with the inner cap to limit or prevent both axial movement and rotational movement therebetween. The outer cap includes an array of threads for threaded engagement with a luer collar. The luer collar may be a separate component mountable to a syringe barrel or an integral part of the syringe barrel.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: April 29, 1997
    Assignee: Becton, Dickinson and Company
    Inventor: Claude Imbert
  • Patent number: 5613952
    Abstract: A syringe apparatus and process for using the same is provided, the syringe apparatus having a barrel, a plunger movable within the barrel, a needle assembly attached to an end of the barrel and having a passageway therethrough, a deformable base positioned within the barrel, flexible supports included on the deformable base, a spring within the passageway of the needle assembly, a hollow needle passing through the passageway, an enlarged head on the needle, and a rupturable web on an end of the plunger, whereby when the plunger moves through the barrel toward the needle assembly, a fluid can be moved from the barrel through the hollow of the needle, and continued movement of the plunger flexes the supports and moves the deformable base downwardly until such time a sufficient force is imparted to the rupturable web by the enlarged head to tear the web, the deformable base then releasing the needle due to force applied by the spring to project the needle into the interior of the plunger.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 25, 1997
    Assignee: Syringe Develpoment Partners
    Inventors: William B. S. Pressly, Sr., Charles A. Vaughn, Sr., G. Samuel Brockway, Thomas R. Ellis
  • Patent number: 5599313
    Abstract: A needle shield assembly of the present invention includes a needle cannula having a proximal end, a distal end and a lumen therethrough. A hub having a proximal end for connecting to a medical instrument and a distal end connected to the proximal end of the needle cannula is provided. A base member is connected to the hub. An elongate needle shield includes a proximal end hingedly connected to the base member, a distal end and a longitudinal axis therebetween. The needle shield includes a longitudinal opening therein. The needle shield is capable of rotating from a first position exposing at least the distal end the needle cannula and a second position wherein the needle cannula is within the longitudinal opening of the needle shield. A sleeve having a longitudinal slot is rotatably connected to the needle shield.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: February 4, 1997
    Assignee: Becton, Dickinson and Company
    Inventors: Sandor Gyure, Robert B. Odell, Sandor Szabo
  • Patent number: 5544519
    Abstract: In a method for measuring the flow resistance of a catheter in an implanted medication infusion system, the system having a medication reservoir and a pump that conveys the medication from the reservoir into the patient through a catheter connected to the discharge of the pump via a one-way valve, and having a rinsing input for direct access to the catheter disposed upstream of the catheter and downstream of the pump, the time required in order to pump a pre-determined liquid volume through the catheter via the rinsing input at a predetermined pressure is measured. In a device for such a flow check, a testing device is provided for connection to the rinsing input, which pumps a predetermined liquid volume through the catheter via the rinsing input at a predetermined pressure. Measuring sensors are provided for supplying signals from which the time required for pumping this liquid volume can be determined.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: August 13, 1996
    Assignee: Siemens Elema AB
    Inventors: Bjoern Hammarberg, Jan Rosen, Bruno Slettenmark
  • Patent number: 5531695
    Abstract: A sleeve which includes a tamper-evident indicator that is securely engagable to a catheter assembly and allows for clear visual indication of whether the connected tubes have been tampered with or the tubes have been disconnected and reconnected. The sleeve comprises a first and second cover portions having a hollow cylindrical shape including barb members attached to the interior surface of the cover portions. A tab connects the two cover portions and is severable from the catheter assembly upon pulling the tab relative to the cover portions, thereby releasing the sleeve. Other than by using the tab, a user cannot release the sleeve without an indication of tampering to the sleeve itself.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: July 2, 1996
    Assignee: Sherwood Medical Company
    Inventor: David R. Swisher
  • Patent number: 5522897
    Abstract: A provisional instrument component 1 for evaluating the fit of a corresponding orthopaedic implant. The component 1 is intended and designed to be a disposable, single use provisional instrument component. The provisional instrument component 1 is made of a material which can be sterilized by gamma irradiation, but which provides a visible indicator, such as visible deformation 10, upon resterilization by exposure to a heated environment, thereby discouraging or preventing re-use of the component 1.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: June 4, 1996
    Assignee: Zimmer, Inc.
    Inventors: Richard S. King, Thirumalai N. C. Devanathan, Steve T. Lin, William L. Rohr, Dale F. Swarts
  • Patent number: 5506015
    Abstract: A tamper-evident closure seal for containers such as syringes or syringes with an attached needle or the like is disclosed. The seal includes a plurality of slits therein which inhibit removal of the seal from the container once the seal has been placed thereon. The invention includes a method of manufacturing the seal which includes deformation of a portion of the slitted area of the seal in order to strengthen the seal in the area of the slits so as to improve removeability of the seal from its release liner prior to attachment thereof to the container, without inadvertent or premature destruction of the seal.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: April 9, 1996
    Assignee: Sherwood Medical Company
    Inventors: Fred Frederiksen, Oscar Salinas
  • Patent number: 5489275
    Abstract: A catheter assembly which has a distal end adapted for insertion into a living body and a proximal end adapted to remain external to said body or a cable for use in such an assembly includes a cylindrical surface on which are inscribed a plurality of markings. Each of the markings indicates one of the specific locations within the living body at which the distal end may be placed during insertion. The markings are positioned at spaced intervals around the circumference of the cylindrical surface. A sleeve is rotatably and/or axially movable around the cylindrical surface, the sleeve being provided with at least one window adapted to be moved into alignment with a selected one of the markings.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: February 6, 1996
    Assignee: EP Technologies, Inc.
    Inventors: Russell B. Thompson, David McGee
  • Patent number: 5472415
    Abstract: A provisional instrument component 1 for evaluating the fit of a corresponding orthopaedic implant. The component 1 is intended and designed to be a disposable, single use provisional instrument component. The provisional instrument component 1 is made of a material which can be sterilized by gamma irradiation, but which provides a visible indicator, such as visible deformation 10, upon resterilization by exposure to a heated environment, thereby discouraging or preventing re-use of the component 1.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: December 5, 1995
    Assignee: Zimmer, Inc.
    Inventors: Richard S. King, Thirumalai N. C. Devanathan, Steve T. Lin, William L. Rohr, Dale F. Swarts
  • Patent number: 5395339
    Abstract: A self packaged medical device, such as a syringe assembly, having a hollow body and an operative element therein for the controlled dispensing or entry of fluid into the body. An extension member operatively connected to the operative element and extending proximally beyond the proximal end of the body. The device further including a proximal barrier between the extension member and the body and a distal barrier to maintain the sterility of the interior of the device prior to use. The medical device is also disclosed in combination with a safety syringe wherein a needle protective shield is movably mounted about the body and is movable between retracted and extended positions.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: March 7, 1995
    Assignee: Sherwood Medical Company
    Inventors: Daniel A. Talonn, Roger L. Crouse, Edwin G. Weichselbaum
  • Patent number: 5391150
    Abstract: An IV bag has at least one opening and a valve associated with the opening. The valve is normally closed to prevent fluid communication through the opening. A needleless connector can be engaged with the valve to open the valve and thereby establish a passageway for fluid communication through the opening.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 21, 1995
    Inventor: Frank Richmond
  • Patent number: 5385561
    Abstract: An apparatus and method are disclosed for injecting a viscous material into periurethral tissues as a treatment for urinary incontinence. The apparatus comprises a non-coring needle mounted to the forward end of a catheter. A hub with a luer adapter is fitted to the rearward end of the catheter. To provide the physician with a readily visible indicator of the orientation of the needle orifice, the catheter has a stripe running longitudinally on the catheter in predetermined angular relationship with the needle orifice. Further, the needle hub also has indicia located thereon in predetermined angular relationship with the needle orifice. Thus the physician can ascertain the orientation of the needle orifice through the cystoscope by observing the location of the stripe, or he can determine the orientation of the needle orifice externally by observing the indicia on the needle hub.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: January 31, 1995
    Assignee: Bard International, Inc.
    Inventor: David E. Cerny
  • Patent number: 5352208
    Abstract: A simple, reliable, low cost hypodermic syringe, comprised generally of a barrel (12) and plunger and including a slidable protective sleeve (32) yieldably retained in an initial retracted position, whereby the capped needle end of the syringe is exposed and a warning band (18) is obscurred. The sleeve (32) is movable after removal of the cap, (30) which had also served as an assembly tool, to an extended latched position, thereby enshrouding the needle, (10) and exposing said warning band (18). The user can add retentive resistance further opposing premature extension of the sleeve (32). Once the syringe is used the cap (30) can be safely used again to further isolate the needle, (10) within a structurally stable, and permanently extended sleeve (32).
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: October 4, 1994
    Inventor: Wilbur D. Robinson
  • Patent number: 5334144
    Abstract: A single use needleless hypodermic injector includes an elongate housing with a proximal end, a distal end, an axis and a hollow bore therethrough. The housing has a reservoir at the distal end with a generally cylindrical chamber for containing an injectable liquid. The chamber has a axis aligned with the housing longitudinal axis. The chamber has a first open end adjacent the housing with a resilient stopper mounted therein. The reservoir has a distal second end with an orifice in fluid communication with the chamber. The resilient stopper seals the chamber and ejects the liquid from the chamber, forming a stream at the orifice when the stopper is moved distally in the chamber. The injector has an piston mounted for axial movement within the housing bore and elements to axially bias the piston distally within the bore. The piston has an armed position wherein it is positioned proximally within the bore.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 2, 1994
    Assignee: Becton, Dickinson and Company
    Inventors: Paul G. Alchas, A. Wes Prais