USRE37439E1 - Disposable self-shielding aspirating syringe - Google Patents

Disposable self-shielding aspirating syringe Download PDF

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Publication number
USRE37439E1
USRE37439E1 US09116064 US11606498A USRE37439E US RE37439 E1 USRE37439 E1 US RE37439E1 US 09116064 US09116064 US 09116064 US 11606498 A US11606498 A US 11606498A US RE37439 E USRE37439 E US RE37439E
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US
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Grant
Patent type
Prior art keywords
body
end
needle
syringe
plunger
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.)
Expired - Lifetime
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US09116064
Inventor
John R. Firth
Anthony R. Perez
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SAFETY SYRINGES Inc (DELAWARE CORPORATION)
Original Assignee
Safety Syringes Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0612Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150244Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
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    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150473Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/3129Syringe barrels
    • A61M5/3137Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
    • A61M2005/3139Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223Means impeding or disabling repositioning of used needles at the syringe nozzle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/581Means for facilitating use, e.g. by people with impaired vision by audible feedback
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/582Means for facilitating use, e.g. by people with impaired vision by tactile feedback
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/59Aesthetic features, e.g. distraction means to prevent fears of child patients
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3271Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position

Abstract

There is disclosed herein a syringe with a protector case which holds a carpule and permits the injection of fluid contained in the carpule into the patient. The syringe is molded of plastic or other suitable material which is sterilizable. The device comprises several parts including a body, protector case, needle, needle cap, plug, plunger and harpoon. The harpoon can be integrally molded on the plunger. The major components of the device preferably are molded from a suitable plastic and may be clear or of a color like or similar to a surgical glove.

Description

ThisThis application is a reissue of Ser. No. 08/467,625 filed Jun. 6, 1995 now U.S. Pat. No. 5,624,400 which is a continuation-in-part of application Ser. No. 08/104,182, filed on Aug. 9, 1993 now U.S. Pat. No. 5,437,647 which is a continuation-in-part of application Ser. No. 07/783,825 filed Oct. 29, 1991, now U.S. Pat. No. 5,279,581, which is a continuation-in-part of application Ser. No. 07/581,734 filed Sep. 12, 1990, now U.S. Pat. No. 5,108,378 which was a CIP of application Ser. No. 07/521,243 filed on May 9, 1990, now abandoned, by two of the applicants herein.

BACKGROUND OF THE INVENTION

The increasing treat of AIDS has generated a rapid development of methods for preventing the spread of communicable diseases from the inadvertent reuse of needle devices, accidental needlestick injuries suffered by medical and dental practitioners, and ineffective sterilization of reusable devices. To be effective, the devices employed must be simple to manufacture and easy to use. Our U.S. Pat. No. 5,108,378 discloses a syringe having a rectangular body cross-section which permits the use of a protector case of matching interior cross section. Parent application Ser. No. 01/104,182 describes the application of many of the features of the above patent to the design of an aspirating syringe of the type in common use by dentists for the administering of local anesthesia and in a hospital environment for the administering of controlled substances. The present application describes significant modifications to the features of the aspirating syringe which make it more effective for its intended purpose.

Numerous attempts have been tried to solve the problems noted above with respect to aspirating syringes. Examples of prior art devices are found in the disclosures of the following United States Patents:

U.S. Pat. No. 2,925,083 discloses a hood for concealing and guarding the needle of a syringe which may be easily retracted when the needle is inside the patients mouth.

U.S. Pat. No. 3,046,985 discloses a sleeve adapter which conceals the needle and applies pressure to the gum tissue.

U.S. Pat. Nos. 3,878,846 and 3,930,499 disclose a dental type syringe with a disposable body and case and reusable finger grip and plunger. The case provides a sterile cover for the body and attached needle prior to use. The reusable finger grip allows the distance between the flanges of the finger grip to be adjusted.

U.S. Pat. No. 4,772,272 discloses an attachment for a reusable dental syringe which incorporates a sheath as part of the disposable needle assembly.

U.S. Pat. No. 4,915,701 discloses a reusable shield for attachment to a reusable dental syringe with a needle disconnect means to enable disconnecting the needle with the shield in place.

U.S. Pat. No. 4,957,490 shows an injection device having a system for retracting a needle into the body using rearward motion of a plunger.

U.S. Pat. No. 4,990,141 discloses a disposable syringe for use with a cartridge and having an elongated needle mount on the front of the body with a shield over the elongated mount.

U.S. Pat. No. 5,104,386 discloses a new design of reusable, dental type syringe having a spring actuated, semicircular shield.

U.S. Pat. No. 5,112,307 discloses a reusable dental syringe with a slidable needle carrier. The needle carrier and needle are retracted into the body section by means of the plunger.

U.S. Pat. No. 5,116,319 discloses a disposable syringe with a system for retracting the needle into the body cavity by means of the plunger.

U.S. Pat. No. 5,163,917 discloses a separate add-on sheath for use with a standard reusable aspirating syringe.

SUMMARY OF THE INVENTION

The present invention provides a syringe with a protector case which holds a glass cartridge and permits the injection of the fluid contained in the cartridge into the patient. The syringe is molded of plastic or other suitable material which is sterilizable. The device comprises six parts including a body, protector case, needle, needle cap, plug, and plunger. The major components of the device preferably are molded from a suitable plastic and may be clear or of a color like or similar to a surgical glove.

The device is normally provided to the practitioner in two assemblies. The body, protector case, needle, and needle cap make up the first assembly. The plug and plunger make up the second assembly.

The protector case is assembled by the manufacturer with the case retracted over the body and the needle attached to the body and extending through an opening in the protector case. The needle is covered by the needle cap which is removably attached to the needle hub on the end of the body. The body and case have a rectangular cross section.

A harpoon is molded as an integral part of the plunger and the plunger is inserted through the center tube of the plug with the harpoon positioned between locking fingers on the plug. The plunger is held in position by protrusions on vanes of the plunger which interact with indentations in the bore of the plug to maintain a desired position during handling, packaging, and assembly of the two sub-assemblies by the user.

The two assemblies are packaged together in a sealed container and sterilized.

The user removes the first assembly from the package and inserts a selected medicine cartridge into the open end of the body. The second assembly is then positioned with the locking fingers of the plug engaging slots in the end of the body and is pushed forward until the locking fingers clear the end of the slots and engage the interior surface of a finger grip on the body. The cartridge has the usual rubber stopper, and the plunger is driven rapidly forward by the hand of the user, or by striking on a hard surface, to engage the harpoon in the rubber stopper of the cartridge in a conventional manner. The needle cap is then removed and the syringe is ready for use. The engagement of the harpoon with the cartridge rubber stopper permits the user to aspirate fluid from the patient by retracting the rubber stopper and thereby to determine if the needle has punctured a blood vessel. Once the plunger is driven forward, the protrusions on the plunger vanes limit the rearward travel of the plunger during aspiration to prevent the rubber stopper from being pulled free of the cartridge.

After use, the protector case is slid axially forward over the needle until detents engage pockets on the edges of the body. In this position the needle is completely covered obviating the need to recap the needle and protecting those handling the device during disposal. Since the device is not intended for reuse, there is no need to remove the contaminated needle nor to autoclave or otherwise resterilize the device.

The benefits of the invention are several, including the following:

1. The device is sterilized after packaging and used only once, ensuring the maximum protecting for the patient and practitioner.

2. The device may be used with any medication available in cartridges of the appropriate size.

3. The rectangular cross section of the body and protector case permit maximum exposure of the cartridge for easy viewing of the cartridge during aspiration and injection while providing the necessary rigidity of the device.

4. The rectangular cross section of the body and protector case make possible the use of the simple and effective detent mechanism for securing the protector case over the needle after use.

5. The protector case and single use/disposable nature of the device make it unnecessary to recap or remove the needle from the syringe eliminating exposure to the contaminated needle.

6. The device, or at least selected portions thereof can be molded of a suitably colored plastic and the appearance and feel of the molded syringe are less threatening to the patient resulting in more patient comfort.

7. The harpoon design makes penetration of the cartridge rubber stopper more easy to accomplish and retraction of the rubber stopper for aspiration less likely to result in the harpoon pulling out.

8. The plug design makes the two assemblies very easy to put together and difficult to disassemble.

9. The plunger design incorporates the harpoon as an integrally molded part, reducing the cost of molding and assembly.

It is thus an object of the present invention to provide an improved syringe.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a syringe of the present invention in its unassembled state, with a cartridge partially inserted, disclosing the interrelationship of the various parts.

FIG. 2 is a similar perspective view of a syringe of the present invention in its assembled state, with a cartridge, with a protector case in the retracted position and a needle cap removed ready for use.

FIG. 3 is a similar perspective view of the syringe in its assembled state, with a cartridge, but with the protector case in an extended (guarded) position ready for disposal after use.

FIGS. 4a, 4b, 4c, and 4d are perspective views of the body of the syringe.

FIGS. 5a, 5b, and 5c, and 5d are perspective views of the protector case.

FIG. 6 is a perspective view of the needle.

FIGS. 7a, 7b, and 7c are perspective views of the needle cap.

FIGS. 8a, 8b, and 8d are perspective views of the body and protector case assembly showing in greater detail the manner in which the body and case are interconnected, and FIG. 8c is a cross-sectional view along a line 8c—8c of FIG. 8b.

FIGS. 9a and 9b are perspective views of a plug of a plunger assembly and FIG. 9c is an enlarged side view of the plug.

FIG. 9d is a cross section view of the plug.

FIG. 10a is a perspective view of a plunger.

FIG. 10b is an enlarged view of a harpoon end of the plunger.

FIGS. 11a and 11b are perspective views of the plunger and plug assembly.

FIG. 12a is a perspective view of a standard glass medicine cartridge, and FIG. 12b is a cross-section thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

FIG. 1 illustrates the body 1 and case 26 of the first assembly with a standard medicine cartridge C partially inserted in a cavity 8 in the body, and the plug 45 and plunger 56 of the second assembly oriented for movement axially to complete assembly of the device. FIG. 2 shows the device fully assembled with a needle cap 42 (note FIG. 8b) removed to expose the needle, and FIG. 3 shows the device after use with the protector case 26 in the forward (guarded) position ready for disposal.

Referring to those Figures and particularly to the detailed drawings of FIGS. 4a, 4b, 4c, and 4d, the body 1 of the first assembly has two elongated side rails 2 with a finger grip collar 3 integrally molded at one end of the side rails 2, and an end wall 4, needle hub support vanes 5, and needle hub 6 integrally molded at the opposite end of the side rails. The side rails 2 have interior concave surfaces 7 which conform to the outer diameter of a standard glass medicine cartridge C (FIGS. 1 and 13) and form a cartridge cavity 8. The outer edges of the side rails define a rectangular cross-section 28 (see FIG. 8c) over which the protector case 26 is positioned. A circular opening 9 is provided through the finger grip collar 3 to permit passage of the cartridge C during loading of the cartridge into the cavity 8 of the body 1. Within the collar 3 are two tapered grooves 10 (FIG. 4d) running axially along the interior surfaces of the collar 3. At the anterior end of these grooves are located two tapered pockets 11 which extend radially outward through the finger grip collar 3 to form two notches 12. These pockets 11 are shaped to receive the ends of the two locking fingers 51 (FIG. 9) on the plug 45 when the second assembly is assembled to the first assembly as will be described subsequently. The notches 12 provide easy orientation of the plug 45 for proper assembly to the body. The finger grip collar 3 has a forward finger grip ring 13 extending radially outward at the forward end of the collar 3 to permit the body 1 to be gripped by the fingers of the user during aspiration (which involves rearward thrust on the plunger 56 and resultant rearward thrust on the body 1).

At the opposite end of the body 1, the end wall 4 forms the attachment between the two side rails 2 and provides the forward surface of the cartridge cavity 8. On the forward surface of the end wall 4, the four needle hub support vanes 5 are attached and extend radially outward from a core opening 14 and axially forward where they attach to the needle hub 6. The needle hub support vanes 5 have forward edges 17 (see FIG. 4a) parallel to the longitudinal axis of the body 1. These edges 17 interact with the needle cap 42 (FIG. 7) with the forward edges 17 engaging an interior bore 44a of the needle cap 42 to secure the cap 42 to the body 1. To further secure the needle cap 42 to the needle hub support vanes 5 there is a small radial protrusion 18 on the forward end of each edge 17 which has an interference fit with an interior bore 44a of the needle cap 42.

The structure of the end wall 4, support vanes 5, and needle hub 6 are configured to facilitate cooling of the mold core during molding of the body and minimization of the plastic volume in this area to improve heat transfer and manufacturing cycle times. The needle hub 6 has a circular opening 19 extending through the hub 6. This opening 19 forms an adhesive pocket which extends axially into the hub from the end away from the body. The needle N (FIG. 6) is attached so that it extends through the circular opening 19 with the interior end of the needle extending past the end wall 4 and into the cartridge cavity 8 to penetrate the forward end of the cartridge C as is known in the art. As an alternative, the hub 6 can be modified and have external threads to accommodate the present standard needle. This also involves modification of the end of the case 26 to accommodate the modified hub 6.

Turning now to the other end of the body 1, rear detent pockets 21 are located on the outer edges of the side rails 2, adjacent to the forward end of the finger grip ring 13. These pockets 21 accept detents 31 (FIG. 5c) of the protector case 26 when the protector case is in the rearward (unguarded) position (see FIG. 2). Similarly formed forward detent pockets 22 (note FIGS. 4b,4c) are located on the outer edges of the side rails 2 at a distance from the rear detent pockets 21 such that, when the protector case detents 31 are engaged in the forward detent pockets 22, the forward end of the protector case covers the outward end of the needle as shown in FIG. 3. The rear detent pockets 21 have front surfaces 23 which are angled from the plane normal to the axis of the body to permit the detents 31 on the protector case 26 to be readily disengaged from the rear detent pockets 21 by sliding the protector case 26 forward. The forward detent pockets 22 have rear surfaces 24 that are inclined at approximately 10 degrees from the plane normal to the longitudinal axis of the body 1 such that the outer edges of the rear surfaces 24 are closer to the needle end of the syringe body than are the inner edges. These rear surfaces 24 interact with the rear surfaces 31a of the detents 31 to prevent the protector case 26 from being moved in a rearward direction when the protector case detents 31 are engaged in the forward detent pockets 22.

The end wall 4 includes stop tabs 25 (FIG. 4a) which protrude from the top and bottom of the body 1 and interact with the ends of the windows 35 (FIGS. 1-3 and 5b-5c) in the top and bottom of the protector case 26 to limit the travel of the protector case 26 in the forward direction (note FIGS. 2, 8b and 8d).

Referring now to FIGS. 5a, 5b, 5c, 5d, and 8c, the protector case 26 comprises a tubular envelope with a rectangular internal cross-section which conforms to the rectangular external cross-section 28 of the body 1 as seen in FIG. 8c. The protector case has an open rear end 29 (FIGS. 5a, 5c, and 5d) with a pair of detent arms 30 and detents 31 integrally molded into the side wails 30a. Assembly tabs 32 with tapered inner edges 33 are integrally molded into the top and bottom walls 30b to facilitate the assembly of the protector case 26 over the stop tabs 25 (FIG. 4a) on the body 1. The detents 31 have sloped forward surfaces 34 (see FIG. 5d) which interact with the sloped forward surfaces 23 of the rear detent pockets 21 (FIG. 4d) of the body 1 to disengage the detents 31 from the rear detent pockets 21 of the body 1 when the protector case 26 is slid forward. Two elongated windows 35 are provided in the top and bottom walls 30b of the protector case 26 such that when the protector case 26 is in the rearward (unguarded) position as seen in FIG. 2, the forward edges 35a of the windows 35 are in close proximity to the forward surfaces of the stop tabs 25 and when the protector case 26 is in the forward (guarded) position as seen in FIG. 3, the rearward edges 35b of the windows 35 engage the rearward surfaces of the stop tabs 25 so that further forward motion of the protector case 26 is prevented by the engagement of the stop tabs 25 and rearward window edges 35b.

The forward end of the protector case is formed into a cone 37 which transitions from the rectangular section of the protector case 26 which covers the side rail area 2 of the body 1 to a smaller diameter 38 which covers the needle support vanes 5 (FIG. 4a). The forward end of the case 37 terminates in a collar 37a (FIG. 5a) to a sleeve 37b. The sleeve 37b has a smaller diameter than the edges 17 of the needle support vanes 5. The sleeve 37b has four slots 38a which permit the sleeve 37b to be drawn over the hub 6 with the edges 17 protruding through the slots 38a in the sleeve 37b. The sleeve 37b terminates in a solid annular ring 37c which ties the four segments of the sleeve together forming a stronger structure. This arrangement permits the cap 42 to be attached directly to the edges 17 of the body 1 while still enabling the end of the protector case 26 to have a small diameter 38. This arrangement also permits the needle cap 42 to be attached to the body 1 rather than the protector case 26 so as to prevent inadvertent actuation of the protector case 26 when the needle cap 42 is removed.

The protector case 26 has an actuator ring 39 molded to the protector case 26 in the area between the rear edges 35b of the windows 35 and the forward end of the detent arms 30. The ring 39 extends radially outward from the outer surface of the protector case 26 with the outer edges preferably defining an octagonal shape as best seen in FIG. 5d.

The needle N shown in FIG. 6 is in the form of a standard metal cannula having a hollow passageway through its length for the passage of fluids. The forward end is sharpened to permit penetration of the patient's tissue and the rear end is sharpened to permit penetration of the rubber membrane on the forward end of the medicine cartridge C in a conventional manner. The needle N is affixed to the needle hub 6 by adhesive during the manufacturing process. Alternatively, the hub 6 of the body 1 can be threaded to receive a standard needle.

The needle cap 42 as shown in FIGS. 7a, 7b, and 7c has a tapered section 40 with a ring 41 on its rear end. The tapered section 40 is closed at the forward end and has axial ribs 43 on its exterior surface. The ring 41 extends radially from the longitudinal axis and facilitates stripping and indexing in the manufacturing process. The inside surface 44a of the cap 42 is parallel to the longitudinal axis of the cap 42 for a distance approximately equal to the length of the forward edges 17 (FIG. 4a) of the needle support vanes 5. At the forward end of the forward edges there are slight protrusions 18 which have an interference fit with the inside surface 44a of the cap 42. These protrusions enhance the attachment of the needle cap 42 to the needle hub support vanes 5. On the rear end of the interior surface 44a there is a raised ring 44 of slightly smaller diameter which has an interference fit with the forward edges 17 (FIG. 4a) of the needle hub support vanes 5. This ring 44 enhances the attachment of the cap 42 to the needle hub support vanes 5 and also assists in stripping the molds in the manufacturing process.

These components are assembled into the first assembly as shown in FIGS. 8b and 8d and are shipped to the end-user with the protector case 26 in the rearward position as shown and the needle cap 42 in place over the needle. FIG. 8a particularly shows how the detents 31 of the protector case 26 fit within the detent pockets 21 of the body 1.

Referring to FIGS. 9a, 9b, 9c, and 9d, the plug 45 is shown and has an inner sleeve 45a with a cylindrical opening 46 passing through it. On the interior walls of the opening 46 there are two indentations 54 to receive protrusions 59 (see FIGS. 10a and 10b) on the plunger 56 to position the plunger 56 in the plug 45 during handling, packaging and shipping. An outer flared section 45b is molded to the forward end of the sleeve 45a at a face 47 and forms a rear finger grip 48. The outer edge 49 of this rear finger grip 48 is in the form of an octagonal section 49 which, in conjunction with the protector case actuation ring 39, which preferably has four or eight sides (octagonal as shown), and rectangular protector case section 26, substantially prevents rolling of the syringe when placed on a flat surface.

Locking fingers 51 are molded to the face 47 of the plug 45 and extend axially forward. Locking detents 52 are located at the ends of the locking fingers 51. At the face end of each locking finger 51 is a base section 53 which is of a form and shape required to fill the notches 12 (FIGS. 4c and 4d) in the finger grip collar 3 of the body 1 so that, when the plug 45 and body 1 are assembled, the finger grip area 48a (see FIG. 2) has a smooth, comfortable surface. The outer surfaces of the locking fingers 51 and locking detents 52 are equidistant from the longitudinal axis of the plug 45 which maintains more uniform wall thickness in the mating sections 10, 11, and 12 of the finger grip collar 3 of the body 1.

Referring to FIGS. 10a and 10b, the plunger 56 has an elongated column 56a of substantially cruciform or “+” cross section with a thumb ring 57 on the rearward end and an end cap 58 on the forward end. The thumb ring 57 has a flat surface 57a on the rearward end to facilitate striking the plunger 56 when setting the harpoon 60 in the cartridge C. A circular boss 57b is located at the joint between the plunger column 56a and the thumb ring 57 to strengthen the plunger and facilitate handling during assembly. Two protrusions 59 are located on the edges of the elongated column 56a near the forward end near the end cap 58. These protrusions 59 interact with the indentations 54 (FIG. 9d) in the bore 49 of the plug 45 to position the plunger 56 in the plug 45 during handling, packaging and shipping. These protrusions 59 also interact with the face 47 of the plug 45 after setting the harpoon to prevent the plunger 56 from being retracted far enough to pull the rubber stopper 70 out of the cartridge C during aspiration.

On the forward end of the plunger 56 there is a harpoon 60 integrally molded to the end cap 58. The harpoon 60 has four barbs 61 extending radially from the axis of the harpoon 60 and plunger 56. Molding the harpoon 56 directly to the plunger 56 results in a simpler mold for the plunger 56, eliminates the cost of a separate harpoon part, and eliminates the cost of assembly of the harpoon to the plunger.

Although the plug 45 can be designed with threads to engage similar threads on the body 1, the locking finger 51 arrangement is preferred. These fingers 51 are flexible so that the plug 45 and body 1 can be quickly and easily assembled by pushing the finger 51 end of the plug into the opening 9 (note FIG. 4d) of the body 1. The finger 51 structure also is simpler and cheaper to mold. A threaded connector between the plug 45 and body 1 would allow the two to be easily separated, which is undesirable; whereas, with the presently described construction with fingers 51, the two are not at all easy to separate. When the fingers 51 are snapped in place in the body 1 and subsequently the plunger 56 is pushed forward to push the harpoon 60 into the rubber stopper 70 of the cartridge C, it is very difficult to then remove the plug 45 from the body 1 because the plunger column 56a is positioned between and bears against the fingers 51 preventing them from flexing inward to thereby prevent the locking detents 52 from disengaging from the finger grip ring 13 on body 1. This provides an important safety feature as can be appreciated. Furthermore, the protrusions 59 (note FIGS. 10a and 10b) on the plunger column 56a preferably have a slightly larger diameter than the hole 46 in the plug 45 (FIG. 9b) to prevent the plunger 56 from being easily pulled out of the plug 45. If the plunger 56 is retracted from the plug 45 the harpoon 60 pulls the rubber stopper 70 of the cartridge C back between the fingers 51 and thus it would be necessary for the user to compress both the cartridge stopper 70 and the fingers 51 of the plug 45 in order to get the plug 45 loose from the body 1.

The plug 45 and plunger 56 are assembled into the second assembly, as shown in FIGS. 11a and 11b, and are shipped in this form with the first assembly. After use the entire syringe assembly, including the needle N, is disposed of.

Except for the needle, all of the above described components are injection molded using conventional techniques. The materials preferably used are plastics of the type used for sterilizable medical devices such as polypropylene, polycarbonate, styrene butadiene.

Another advantage, in addition to simplifying manufacture and providing a readily disposable syringe, in molding the syringe components (other than the needle) from plastic is that if the syringe components contact the skin of the patient, the syringe does not feel cold to the touch as with conventional metal aspirating dental syringes. Furthermore, and of particular importance, is the fact that the syringe components can be molded from a colored plastic or otherwise colored and, significantly, can be molded of a color which is the same as or similar to the color of surgical gloves (typically an ivory or almost or substantially white color). By providing this particular color, at least for the portions seen by a patient (i.e., the ring 57, plunger 56 and the plug 45). the color of the syringe blends into the color of the glove and becomes essentially an extension of the practitioner's hand and therefore appears to be less obtrusive or threatening to the patient. Also, any other color can be provided as desired, particularly in the event the color of surgical gloves is changed from the standard substantially white or ivory.

DESCRIPTION OF THE ASSEMBLY AND OPERATION OF THE PREFERRED EMBODIMENT

The syringe device of the present invention is assembled at the manufacturing facility into the two sub-assemblies as shown in FIGS. 8b and 11a. These sub-assemblies are placed together and sealed in a suitable container which provides a microbial barrier. The packaged devices are then sterilized by gamma radiation, or in any other recognized manner, and shipped to the end user either directly or through a distribution chain.

Immediately prior to use, the container is opened and the body sub-assembly shown in FIG. 8b is removed. The cartridge C of FIG. 12 containing the selected medication is next inserted into the cartridge cavity 8 as seen in FIG. 8b. The plug assembly of FIG. 11 is then removed and the locking fingers 51 are aligned with the notches 12 (see FIGS. 4d and 8d) in the finger grip ring 3 of the body 1. The plug 45 is pushed forward until the detents 52 of the locking fingers 51 engage the forward wall of the finger grip ring 13 of the body 1. As the locking fingers 51 move forward, the front ends of the locking fingers 51 push against the rear surface of the cartridge C forcing the cartridge forward over the rear end (see FIG. 8d) of the needle N which penetrates the standard rubber seal on the forward end of the cartridge C in a conventional manner.

The plunger 56 can then be forced sharply forward by striking the finger ring 57 with the palm of the hand of the user or against a hard surface in a conventional manner. This imbeds the harpoon 60 in the rubber stopper 70 with the barbs 61 engaged in the stopper 70.

The needle cap 42 can then be removed and the needle N inserted into the patient. The rubber stopper 70 of the cartridge C is then moved rearward by retracting the finger ring 57 of the plunger 56 to draw body fluid into the cartridge C (aspiration) in the usual way to determine if the needle N has penetrated a blood vessel and, if not, the plunger 56 is pushed forward to discharge and medication contained in the cartridge C into the patient.

After injection, the needle N is retracted from the patient. As the syringe is withdrawn the protector case 26 may be grasped with the free hand of the user and held as the syringe is moved away from the patient thus sliding the protector case 26 forward over the needle N and into the guarded position as shown in FIG. 3. Alternatively, the protector case 26 may be operated with one hand by moving the index and middle fingers forward between the rear of the protector case actuator ring 39 and the front of the finger grip ring 13 moving the thumb rearward in the ring 57 thereby drawing the body 1 rearward into the protector case 26. As the protector case 26 slides forward, the detents 31 engage the forward detent pockets 22 preventing subsequent rearward movement of the protector case 26. The stop tabs 25 and rear edges 35b of the windows 35 provide a positive stop when moving the protector case 26 forward to cover the needle N. The entire device is then disposed of without further exposure of the needle or other action required.

The improvements which are the particular subject of the present invention are:

A modified configuration of the plunger 56 which includes the molding of the harpoon 60 as an integral part of the plunger which eliminates a separate part, simplifies the mold configuration for the plunger, and eliminates a step in the assembly process.

A new design for the molded harpoon 60 which increases the force required to pull the plunger free of the rubber stopper 70 thus reducing the incidence of inadvertent release of the stopper 70 during aspiration.

Addition of protrusions 59 on the vanes 56a of the plunger 56 and undercuts 54 in the bore of the plug 45 which interact to create an improved method of positioning the plunger relative to the plug in the second assembly.

Positioning the protrusions 59 on the vanes 56a relative to the harpoon tip 60 to provide an interaction between the protrusions and the forward wall of the plug 45 at the exit of the bore 46 through the plug to prevent the plunger 56 from being easily retracted beyond the point of interference thus substantially reducing the likelihood of the rubber piston of the medicine cartridge C being pulled free of the cartridge during the aspiration process.

Addition of an annular ring 38 to the distal end of the protector case 26 to strengthen the structure without affecting the feature which permits the needle cap 42 to be attached to the body 1 rather than the protector case 26 so as to prevent inadvertent actuation of the protector case 26 when the needle cap 42 is removed.

Modification to the angle and shape of the detents 31 on the protector case 26 and the detent pockets 22 on the body 1 to reduce the force necessary to release the detents from the rear pockets and slide the protector case forward over the needle.

While embodiments of the present invention have been shown and described, various modifications may be made without departing from the scope of the present invention, and all such modifications and equivalents are intended to be covered.

Claims (19)

What is claimed is:
1. A medical syringe for injecting medication into a human, comprising a syringe body, and a protector case movable with respect to the body to expose a needle connected to the body for injection and to cover the needle for disposal, the body having a cavity for receiving a medicine cartridge, the body having a first forward end to which the needle is attached and which needle also is capable of penetrating a cartridge for injecting medicine through the needle into a human, and the body having a second end into which a cartridge can be inserted,
a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end, the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of the needle, and wherein the first open end of the case is substantially cylindrical with a plurality of radially disposed slots and wherein an outer area of the first open end thereof is in the shape of a solid annular ring, and
a plunger assembly for cooperatively mating with the second end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from a cartridge to be administered through the needle, the plunger comprising a first end adapted to be manipulated by the user of the syringe and a second end adapted to be inserted into the body for engaging a stopper of a cartridge therein, the plunger being molded of plastic and the second end thereof having an integrally molded harpoon thereon which is adapted to engage and connect with a stopper of a cartridge disposed in the body.
2. A syringe as in claim 1 wherein the first end of the body for receiving a needle is tapered and includes a plurality of radially disposed fins adapted, when assembled with the case, to engage and extend through the slots in the first open end of the case.
3. A syringe as in claim 2 wherein the fins terminate in projections which are adapted to cooperatively mate with an open end of a needle cap.
4. A medical syringe for injecting medication into a human, comprising a syringe body, and a protector case movable with respect to the body to expose a needle connected to the body for injection and to cover the needle for disposal, the body having a cavity for receiving a medicine cartridge, the body having a first forward end to which the needle is attached and which needle also is capable of penetrating a cartridge for injecting medicine through the needle into a human, and the body having a second end into which a cartridge can be inserted,
a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end, the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of the needle, and
a plunger assembly for cooperatively mating with the second end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from a cartridge to be administered through the needle, the plunger comprising a first end adapted to be manipulated by the user of the syringe and a second end adapted to be inserted into the body, for engaging a stopper of a cartridge therein, the plunger being molded of plastic and the second end thereof having an integrally molded harpoon thereon which is adapted to engage and connect with a stopper of a cartridge disposed in the body, and wherein the plunger assembly further includes a plug through which the plunger extends and wherein the plug is adapted to couple with the second end of the body, the plunger including a plurality of radially disposed vanes having protrusions thereon for engaging undercut sections in a bore of the plug for facilitating positioning the plunger relative to the plug of the plunger assembly.
5. A medical syringe for injecting medication into a human, comprising
a syringe body and a protector case movable with respect to the body to expose a needle for injection of medicine into a human and to cover the needle for disposal, and a plunger and plug assembly movable for causing medication to be injected into a human, the plunger and plug assembly comprising an elongated plunger and a plug which are adapted to be cooperatively reciprocally coupled together and the plug being adapted to couple and become affixed to an open end of the body which open end is adapted to receive a cartridge containing medicine, and the plunger having a first end adapted to be manipulated by the user and a second end having an integrally molded harpoon thereon adapted to be coupled with and become affixed to a movable stopper of the cartridge, and wherein the plunger has a pair of protrusions thereon and the plug has a bore with a pair of indentations wherein the protrusions interact with the indentations during handling, packaging and shipping of the plunger and plug, and the plug having a face which interacts with the protrusions of the plunger to limit the retraction of the plunger once the harpoon thereof becomes affixed to the stopper of the cartridge.
6. A medical syringe for injecting medication into a human, comprising:
a syringe body having a cavity for receiving a medicine cartridge, a first forward end from which a needle may extend, and a second end into which the medicine cartridge may be inserted;
a protector case adapted to slidably fit on the body, and having a first open end through which the needle may extend and a second end, the case and the body having cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of the needle; and
a locking mechanism on the second end of the body for engaging the medicine cartridge received in the cavity, the locking mechanism being molded of plastic;
wherein the locking mechanism comprises a finger grip and at least one locking detent for engaging a surface of the cartridge received in the cavity to prevent proximal movement thereof.
7. A medical syringe as in claim 6 wherein the locking mechanism comprises a plug having the finger grip thereon, and a locking finger having the at least one locking detent thereon.
8. A medical syringe as in claim 6, further comprising a finger grip on the second end of the syringe body.
9. A medical syringe as in claim 8, wherein the finger grip and syringe body include cooperating detents and notches for attaching the finger grip to the syringe body.
10. A medical syringe as in claim 9, wherein the locking mechanism comprises a locking finger extending axially forward from the finger grip.
11. A medical syringe as in claim 6, wherein the body and protector case comprise plastic.
12. A disposable self-shielding syringe, comprising:
a body having proximal and distal ends and having a cavity therein, the proximal end having an opening therethrough to permit passage of a medicine cartridge axially into the cavity;
a medicine cartridge received in the cavity;
a needle extending distally from the distal end of the body;
a finger grip collar on the proximal end of the body;
a locking mechanism on the proximal end of the body for engaging a rear surface of the medicine cartridge and preventing proximal movement of the medicine cartridge received in the cavity;
a protector case slidable on the body between rearward and forward positions, and having a open distal end for uncovering and covering respectively a needle extending distally from the distal end of the body; and
a detent and detent pocket on the body and protector case for locking the protector case in the guarded position;
wherein the locking mechanism comprises a locking finger for engaging a rear surface of the cartridge received in the cavity, the locking finger extending from a plug attachable to the proximal end of the body.
13. A disposable self-shielding syringe as in claim 12, wherein the body and protector case comprise plastic.
14. A disposable self-shielding syringe as in claim 12, wherein the finger grip and the locking mechanism are molded directly to one another.
15. A disposable self-shielding syringe as in claim 12, wherein the finger grip collar is molded to the proximal end of the body.
16. A single use, disposable syringe, comprising
an elongate body having a cavity therein for receiving a medicine cartridge, a distal end with an opening through which a needle may extend, and a proximal end with an opening therethrough to permit passage of the medicine cartridge axially into the cavity;
a finger grip collar integrally molded onto the proximal end of the elongate body;
a locking mechanism on the proximal end of the elongate body for engaging a rear surface of the medicine cartridge and preventing proximal movement of the medical cartridge received in the cavity;
a protector case slidable on the elongate body between rearward and forward positions, and having an open distal end for uncovering and covering, respectively, a needle extending distally from the distal end of the elongate body; and
a detent or detent pocket on the proximal end of the protector case, and on the proximal and distal ends of the elongate body, for retaining the protector case in the rearward position during use, and for substantially locking the protector case in the forward position to prevent reuse, respectively.
17. A single use, disposable syringe according to claim 16, wherein the elongate body and the protector case both comprise substantially clear plastic.
18. A single use, disposable syringe according to claim 16, wherein the locking mechanism comprises a locking finger extending from a plug attachable to the proximal end of the elongate body.
19. A single use, disposable syringe according to claim 16, wherein the locking mechanism comprises a plurality of locking members extending into the cavity.
US09116064 1990-05-09 1998-07-15 Disposable self-shielding aspirating syringe Expired - Lifetime USRE37439E1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US52124390 true 1990-05-09 1990-05-09
US07783825 US5279581A (en) 1990-05-09 1991-10-29 Disposable self-shielding hypodermic syringe
US08104182 US5437647A (en) 1990-05-09 1993-08-09 Disposable self-shielding aspirating syringe
US08467625 US5624400A (en) 1990-05-09 1995-06-06 Disposable self-shielding aspirating syringe
US09116064 USRE37439E1 (en) 1990-05-09 1998-07-15 Disposable self-shielding aspirating syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09116064 USRE37439E1 (en) 1990-05-09 1998-07-15 Disposable self-shielding aspirating syringe

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US08467625 Reissue US5624400A (en) 1990-05-09 1995-06-06 Disposable self-shielding aspirating syringe

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USRE37439E1 true USRE37439E1 (en) 2001-11-06

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US08467625 Expired - Lifetime US5624400A (en) 1990-05-09 1995-06-06 Disposable self-shielding aspirating syringe
US09116064 Expired - Lifetime USRE37439E1 (en) 1990-05-09 1998-07-15 Disposable self-shielding aspirating syringe

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020193746A1 (en) * 1999-12-07 2002-12-19 Stephane Chevallier Safety system for a syringe
US20030073958A1 (en) * 2001-10-11 2003-04-17 Inter-Med, Llc Disposable aspirating safety syringe
US6613022B1 (en) 2000-05-05 2003-09-02 Safety Syringes, Inc. Passive needle guard for syringes
US6623459B1 (en) 2000-05-05 2003-09-23 Safety Syringes, Inc. Passive needle guard for syringes
WO2003082139A1 (en) * 2002-03-29 2003-10-09 Orapharma, Inc. Dispensing apparatus and cartridge
US20030199830A1 (en) * 2002-04-17 2003-10-23 Nguyen Steven Huu Retractable safety infusion needle
US20040267200A1 (en) * 2003-06-27 2004-12-30 Carlyon James L. Safety needle shield apparatus
US20050020979A1 (en) * 2003-07-22 2005-01-27 Safety Syringes, Inc. Systems and methods for automatic medical injection with safeguard
US20050096600A1 (en) * 2003-11-04 2005-05-05 Hui-Chiang Lin Safety sleeve for hiding cannula of syringes
US20060184115A1 (en) * 2001-06-20 2006-08-17 Saied V C Anesthetizer with automatic needle decommissioning mechanism
WO2006105006A2 (en) * 2005-03-31 2006-10-05 Milestone Scientific, Inc. Safety syringe
US20060264887A1 (en) * 2005-05-17 2006-11-23 Lande Lloyd J Syringe sheath
US20070066937A1 (en) * 2005-09-22 2007-03-22 Tyco Healthcare Group Lp Safety needle with lockout mechanism
US20070066960A1 (en) * 2005-09-22 2007-03-22 Tyco Healthcare Group Lp Needle retraction structure
US20090142728A1 (en) * 2007-12-04 2009-06-04 Lawter James R Actuators for device for delivering medicinal implants
US20090148500A1 (en) * 2007-12-04 2009-06-11 Lawter James R Medicinal implant cartridge
US20090171298A1 (en) * 2007-12-13 2009-07-02 University Of Victoria Innovation And Development Corporation Syringe with extendable and retractable needle
US20090247952A1 (en) * 2008-03-31 2009-10-01 Tyco Healthcare Group Lp Safety Needle with Spring Based Retraction Mechanism
US20100136502A1 (en) * 2008-12-02 2010-06-03 Zhangwen Wu Medicinal implant device and cartridge
US7824378B2 (en) 2005-09-22 2010-11-02 Tyco Healthcare Group Lp Non-axial return spring for safety needle
US7976489B2 (en) 2007-12-04 2011-07-12 Orapharma, Inc. Device for delivering medicinal implants
US8128594B1 (en) * 2010-11-03 2012-03-06 Chang li-feng Safety syringe
US8372044B2 (en) 2005-05-20 2013-02-12 Safety Syringes, Inc. Syringe with needle guard injection device
US8591473B2 (en) 2005-09-22 2013-11-26 Covidien Lp Manually retracted safety needle with rigid wing structure
USD739932S1 (en) * 2014-03-03 2015-09-29 Sanofi Medicament injection device
USD782033S1 (en) 2014-03-03 2017-03-21 Sanofi Medicament injection device
US9731080B2 (en) 2005-04-06 2017-08-15 Cilag Gmbh International Injection device
US9757520B2 (en) 2006-06-01 2017-09-12 Cilag Gmbh International Injection device

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6171283B1 (en) * 1997-03-10 2001-01-09 Safety Syringes, Inc. Disposable self-shielding unit dose syringe guard
US6159184A (en) 1997-03-10 2000-12-12 Safety Syringes, Inc. Disposable self-shielding unit dose syringe guard
US5951526A (en) * 1997-09-24 1999-09-14 Korisch; Marina Syringe holder with integral dose divider
US6004296A (en) 1997-09-30 1999-12-21 Becton Dickinson France, S.A. Lockable safety shield assembly for a prefillable syringe
US6719730B2 (en) 1998-04-17 2004-04-13 Becton, Dickinson And Company Safety shield system for prefilled syringes
US6319233B1 (en) 1998-04-17 2001-11-20 Becton, Dickinson And Company Safety shield system for prefilled syringes
US6679864B2 (en) 1998-04-17 2004-01-20 Becton Dickinson And Company Safety shield system for prefilled syringes
US6030366A (en) * 1998-11-09 2000-02-29 Safety Syringes, Inc. Syringe guard system for a unit dose syringe
GB0003790D0 (en) * 2000-02-18 2000-04-05 Astrazeneca Uk Ltd Medical device
US6416323B1 (en) 2000-05-11 2002-07-09 Safety Syringes, Inc. Aspirating dental syringe with needle shield
US20020087360A1 (en) * 2001-01-02 2002-07-04 Pettit Stephen W. Immunization tracking method
US20030055685A1 (en) * 2001-09-19 2003-03-20 Safety Syringes, Inc. Systems and methods for monitoring administration of medical products
GB0128691D0 (en) * 2001-11-30 2002-01-23 Segal Alan J Syringes
US6935560B2 (en) * 2002-02-26 2005-08-30 Safety Syringes, Inc. Systems and methods for tracking pharmaceuticals within a facility
US20030160698A1 (en) * 2002-02-26 2003-08-28 Safety Syringes, Inc. Systems and methods for tracking pharmaceuticals within a facility
CA2473901C (en) * 2002-02-26 2010-09-07 Safety Syringes, Inc. Systems and methods for tracking pharmaceuticals within a facility
US6976976B2 (en) 2002-03-27 2005-12-20 Safety Syringes, Inc. Syringe with needle guard injection device
WO2003084589A1 (en) * 2002-03-29 2003-10-16 Mdc Investment Holdings, Inc. Safety pre-filled cartridge injector
US7004929B2 (en) * 2002-03-29 2006-02-28 Mdc Investment Holdings, Inc. Safety pre-filled cartridge injector
US20040036196A1 (en) * 2002-08-20 2004-02-26 Kimberly-Clark Worldwide, Inc. Powder-free nitrile gloves
US20040051368A1 (en) * 2002-09-17 2004-03-18 Jimmy Caputo Systems and methods for programming pumps
WO2004047895A1 (en) * 2002-11-25 2004-06-10 Tecpharma Licensing Ag Device for securing injection needles
KR100618076B1 (en) * 2006-05-10 2006-08-29 김근식 One-time-use automatic safety scanner
US9656019B2 (en) 2007-10-02 2017-05-23 Medimop Medical Projects Ltd. Apparatuses for securing components of a drug delivery system during transport and methods of using same
US20090093793A1 (en) 2007-10-02 2009-04-09 Yossi Gross External drug pump
US20090157012A1 (en) * 2007-12-13 2009-06-18 University Of Victoria Innovation And Development Corporation Syringe with extendable and retractable needle
EP2240222B1 (en) * 2008-01-11 2018-04-04 UCB Biopharma SPRL Systems for administering medication for rheumatoid arthritis patients
JP5683021B2 (en) 2008-07-18 2015-03-11 ユーシービー ファーマ エスアー System for managing medication for rheumatoid arthritis patients
USD641078S1 (en) 2008-12-29 2011-07-05 Ucb Pharma, S.A. Medical syringe with needle tip cap
CN102448519B (en) * 2009-03-31 2014-03-26 赛诺菲-安万特德国有限公司 Drug delivery device
USD660958S1 (en) 2009-07-20 2012-05-29 Ucb Pharma, S.A. Device for administering medication
US8920385B2 (en) * 2010-05-05 2014-12-30 Safety Syringes, Inc. Extended finger flange for syringe systems
RU2576604C2 (en) * 2010-07-02 2016-03-10 Санофи-Авентис Дойчланд Гмбх Needle protector for protective device, protective device and injector
RU2459639C2 (en) * 2010-09-29 2012-08-27 Александр Ильич Абовян Disposable cartridge injector
EP2623145A1 (en) 2012-02-03 2013-08-07 Q Stat Pty Ltd Retractable needle apparatus
US20140360894A1 (en) * 2013-06-05 2014-12-11 Ethel Marlene Miles Carpule to Store Lower Dosage Amount of Dental Anesthetic
US9402701B2 (en) * 2013-10-22 2016-08-02 Profounda, Inc Positionable delivery device and method
USD761954S1 (en) * 2014-04-10 2016-07-19 3M Innovative Properties Company Syringe
WO2016070265A1 (en) * 2014-11-05 2016-05-12 Ashraf Khurrum Masood Medical and dental safety syringe
US9987432B2 (en) 2015-09-22 2018-06-05 West Pharma. Services IL, Ltd. Rotation resistant friction adapter for plunger driver of drug delivery device

Citations (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US827383A (en) * 1905-05-11 1906-07-31 Patrick J Mcelroy Aseptic syringe.
US1652894A (en) * 1927-01-12 1927-12-13 Gunther Alfred Glass syringe for injections and similar purposes
US1921034A (en) * 1931-10-31 1933-08-08 Marche Norman O La Syringe container and ejector
US2432605A (en) * 1944-03-01 1947-12-16 Joseph H Barach Graduated receptacle for syringes
US2571653A (en) * 1950-02-25 1951-10-16 Bastien Victor Gerard Syringe
US2586581A (en) * 1950-03-07 1952-02-19 Marion E Tschischeck Magnifying attachment for syringes
US2895474A (en) * 1955-01-04 1959-07-21 Cook Waite Lab Inc Aspirating cartridge syringe
US2925083A (en) * 1957-12-27 1960-02-16 Clarence D Craig Hypodermic syringe with hood for guarding and concealing the needle
US3046985A (en) * 1958-12-19 1962-07-31 Saenz Candelario Dental syringe adapter
US3878846A (en) * 1971-12-13 1975-04-22 Spad Lab Hypodermic syringe with parts disposable after use
US3885562A (en) * 1973-11-16 1975-05-27 John C Lampkin Syringe with writing surface
US3930499A (en) * 1972-11-22 1976-01-06 Laboratoire S P A D Hypodermic syringe with parts disposable after use
US3943927A (en) * 1975-03-03 1976-03-16 Norgren Robert S Injection apparatus
US4018223A (en) * 1974-12-09 1977-04-19 Andros Incorporated Dosage control device
US4048997A (en) * 1976-11-01 1977-09-20 Mpl, Inc. Syringe with actinic radiation protection
US4171699A (en) * 1977-05-09 1979-10-23 Princeton Polymer Laboratories, Inc. Mercaptan modified methyl methacrylate-alpha methyl styrene copolymer syringe
US4356822A (en) * 1980-10-17 1982-11-02 Winstead Hall Deborah Syringe assembly
US4425120A (en) * 1982-04-15 1984-01-10 Sampson Norma A Shielded hypodermic syringe
US4573976A (en) * 1984-05-24 1986-03-04 Dolores A. Smith Shielded needle
US4592744A (en) * 1985-08-14 1986-06-03 The University Of Virginia Alumni Patents Foundation Self-resheathing needle assembly
US4601711A (en) * 1984-12-24 1986-07-22 Ashbury Thomas W Syringe holder device for controlled force amplification syringe fluid flow
US4631057A (en) * 1985-12-17 1986-12-23 Dolores A. Smith Shielded needle
US4643199A (en) * 1986-02-28 1987-02-17 Jennings Jr Baldwin P Safety blood sample apparatus
US4655751A (en) * 1986-02-14 1987-04-07 Harbaugh John T Liquid dispensing and receiving syringe
US4690676A (en) * 1983-09-14 1987-09-01 Moulding Jr Thomas S Method of opening a medicine package
US4723943A (en) * 1986-12-31 1988-02-09 Montana Deaconess Medical Center Sheathed syringe
US4728321A (en) * 1987-04-16 1988-03-01 Ming-Chiu Wu Syringe cap with adhesive holding plug
US4737144A (en) * 1987-03-09 1988-04-12 Choksi Pradip V Syringe with selectively exposed and enveloped needle
US4738663A (en) * 1987-06-04 1988-04-19 Bogan David B Hypodermic needle shield
US4743234A (en) * 1987-05-18 1988-05-10 The Cloverline, Inc. Syringe magnifier
US4762516A (en) * 1987-03-05 1988-08-09 Luther Medical Products, Inc. Assembly of needle catheter protector
US4767413A (en) * 1987-04-20 1988-08-30 Habley Medical Technology Corporation Dental syringe having an automatically retractable needle
US4772272A (en) * 1987-05-11 1988-09-20 Mcfarland Barton C Needle protective sleeve
US4795443A (en) * 1987-04-16 1989-01-03 Peachtree Medical, Inc. Syringe sealing device and method
US4801295A (en) * 1986-05-22 1989-01-31 Spencer Treesa A Disposable hypodermic syringe and needle combination having retractable, accident preventing sheath
US4813426A (en) * 1987-11-09 1989-03-21 Habley Medical Technology Corporation Shielded safety syringe having a retractable needle
US4832696A (en) * 1987-03-05 1989-05-23 Luther Medical Products, Inc. Assembly of needle and protector
US4840185A (en) * 1988-02-17 1989-06-20 Manuel Hernandez Blood sampling device with shield
US4850994A (en) * 1985-10-11 1989-07-25 Physionic Gesellschaft fur Medizin-und, Systemtechnik GmbH Hypodermic syringe
US4850961A (en) * 1987-07-30 1989-07-25 Wanderer Alan A Indwelling placement device with guard
US4871355A (en) * 1988-05-17 1989-10-03 Steven Kikkawa Injury resistant needle and blood collection tube holder
US4878902A (en) * 1988-02-25 1989-11-07 Wanderer Alan A Needle guard for body substance isolation
US4892523A (en) * 1987-04-27 1990-01-09 Habley Medical Technology Corporation Shielded safety syringe
US4898590A (en) * 1988-06-24 1990-02-06 Research Foundation Of The State University Of N.Y. Syringe having protective sleeve
US4900310A (en) * 1988-10-07 1990-02-13 International Medication Systems Limited Protective device for cannula used to draw blood
US4915701A (en) * 1989-02-21 1990-04-10 Halkyard Douglas R Protective device and syringe
US4917669A (en) * 1989-02-08 1990-04-17 Safetyject Catheter inserter
US4927416A (en) 1987-12-02 1990-05-22 National Medical Device Corporation User-protective hypodermic syringe holder
US4935016A (en) * 1988-02-17 1990-06-19 Deleo John Syringe
US4938745A (en) * 1988-02-25 1990-07-03 Sagstetter William E Needle guard with visual confirmation of lock
US4946447A (en) * 1989-02-14 1990-08-07 Hardcastle Samuel L Protective cover for hypodermic needle
US4946446A (en) * 1989-06-14 1990-08-07 Vadher Dinesh L Retractable needle
US4957490A (en) * 1986-12-16 1990-09-18 National Research Development Corporation Injection device
US4974603A (en) * 1989-12-04 1990-12-04 Jerome Jacobs Needle ejector apparatus for a blood sample vacuum tube container
US4990141A (en) * 1988-01-15 1991-02-05 National Research Development Corporation Single-use syringe
US5002537A (en) * 1989-10-23 1991-03-26 Gte Products Corporation Hypodermic syringe
US5007903A (en) * 1988-11-22 1991-04-16 Real World Design & Development Company Syringe adapted to prevent needle sticks
US5013305A (en) * 1988-06-29 1991-05-07 Opie Eric A Needle safety system and method
US5030209A (en) * 1988-11-09 1991-07-09 Medical Safety Products, Inc. Holder for double ended blood collection retractable needle
US5045066A (en) * 1990-06-07 1991-09-03 Smith & Nephew, Inc. Dental needle with stick resistant protective sleeve
US5057087A (en) * 1989-04-24 1991-10-15 Harmon James E Hypodermic needle safety system
US5059185A (en) * 1988-03-01 1991-10-22 Ryan Medical, Inc. Safety needled medical devices
US5067490A (en) * 1988-01-05 1991-11-26 Habley Medical Technology Corporation Single use, safety blood collecting device
US5067945A (en) * 1988-03-01 1991-11-26 Ryan Medical, Inc. Safety needled medical devices capable of one-handed manipulation
US5069225A (en) * 1988-09-28 1991-12-03 Terumo Kabushiki Kaisha Blood collection and/or injection device and double-ended medical needle and holder therefor
US5070884A (en) * 1989-03-14 1991-12-10 Eastman Kodak Company Needle device for safely collecting blood or injecting drugs
US5070885A (en) * 1990-06-11 1991-12-10 Care Medical Devices, Inc. Disposable blood collection device
US5085639A (en) * 1988-03-01 1992-02-04 Ryan Medical, Inc. Safety winged needle medical devices
US5086780A (en) * 1990-05-21 1992-02-11 Abbott Laboratories Blood collection device
US5088982A (en) * 1988-03-01 1992-02-18 Ryan Medical, Inc. Safety winged needle medical devices
US5088988A (en) * 1988-06-28 1992-02-18 Sherwood Medical Company Combined dental syringe and needle shield
US5104386A (en) * 1991-04-16 1992-04-14 Alzain Mohammed O Dental syringe apparatus
US5108376A (en) * 1990-11-14 1992-04-28 Safetyject Retractable intravenous needle assembly
US5112307A (en) * 1990-04-24 1992-05-12 Habley Medical Technology Corp. Dental syringe having a medication filled carpule and an automatically-detaching piston stem
US5116319A (en) * 1988-08-26 1992-05-26 Advanced Protective Injection Systems B.V. Safety device for an injection syringe needle
US5120311A (en) * 1989-11-01 1992-06-09 Medical Safety Products, Inc. Blood collection tube holder
US5131405A (en) * 1990-09-18 1992-07-21 Becton, Dickinson And Company Universal blood draw safety holder
US5137521A (en) * 1991-08-19 1992-08-11 Alco Machine & Tool, Inc. Telescoping safety guard for hypodermic needles and the like
US5154699A (en) * 1988-03-01 1992-10-13 Ryan Medical, Inc. Safety winged needle device for use with fistulas
US5163917A (en) * 1991-09-26 1992-11-17 Norman Huefner Barrel mounted needle guard for hypodermic syringes
US5207646A (en) 1988-06-30 1993-05-04 Marc Brunel Single use shieldable hypodermic syringe with a reusable handle
US5219339A (en) * 1989-11-17 1993-06-15 Masataka Saito Single use medical needle
US5259841A (en) * 1991-02-25 1993-11-09 Gemini Trade Overseas Ltd. Safety syringe
US5266072A (en) * 1988-09-30 1993-11-30 Utterberg David S Guarded winged needle assembly
US5279581A (en) * 1990-05-09 1994-01-18 Firth John R Disposable self-shielding hypodermic syringe
US5330438A (en) * 1993-10-08 1994-07-19 Gollobin Peter J Protective sheath for butterfly needles and IV infusion set and sheath assembly
US5336185A (en) 1992-12-31 1994-08-09 Lynch Richard A Protection device for syringe needles
US5344407A (en) 1993-05-04 1994-09-06 Ryan Dana W Safety holder for pre-filled disposable syringe cartridge
US5385557A (en) 1994-04-04 1995-01-31 Thompson; Clarence J. Shielding device for a syringe needle
GB2283425A (en) 1993-10-19 1995-05-10 Yong Siang Toi Protective sheath for a syringe
US5498244A (en) 1993-09-22 1996-03-12 American Home Products Corporation Safety guard for medical instruments

Patent Citations (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US827383A (en) * 1905-05-11 1906-07-31 Patrick J Mcelroy Aseptic syringe.
US1652894A (en) * 1927-01-12 1927-12-13 Gunther Alfred Glass syringe for injections and similar purposes
US1921034A (en) * 1931-10-31 1933-08-08 Marche Norman O La Syringe container and ejector
US2432605A (en) * 1944-03-01 1947-12-16 Joseph H Barach Graduated receptacle for syringes
US2571653A (en) * 1950-02-25 1951-10-16 Bastien Victor Gerard Syringe
US2586581A (en) * 1950-03-07 1952-02-19 Marion E Tschischeck Magnifying attachment for syringes
US2895474A (en) * 1955-01-04 1959-07-21 Cook Waite Lab Inc Aspirating cartridge syringe
US2925083A (en) * 1957-12-27 1960-02-16 Clarence D Craig Hypodermic syringe with hood for guarding and concealing the needle
US3046985A (en) * 1958-12-19 1962-07-31 Saenz Candelario Dental syringe adapter
US3878846A (en) * 1971-12-13 1975-04-22 Spad Lab Hypodermic syringe with parts disposable after use
US3930499A (en) * 1972-11-22 1976-01-06 Laboratoire S P A D Hypodermic syringe with parts disposable after use
US3885562A (en) * 1973-11-16 1975-05-27 John C Lampkin Syringe with writing surface
US4018223A (en) * 1974-12-09 1977-04-19 Andros Incorporated Dosage control device
US3943927A (en) * 1975-03-03 1976-03-16 Norgren Robert S Injection apparatus
US4048997A (en) * 1976-11-01 1977-09-20 Mpl, Inc. Syringe with actinic radiation protection
US4171699A (en) * 1977-05-09 1979-10-23 Princeton Polymer Laboratories, Inc. Mercaptan modified methyl methacrylate-alpha methyl styrene copolymer syringe
US4356822A (en) * 1980-10-17 1982-11-02 Winstead Hall Deborah Syringe assembly
US4425120A (en) * 1982-04-15 1984-01-10 Sampson Norma A Shielded hypodermic syringe
US4690676A (en) * 1983-09-14 1987-09-01 Moulding Jr Thomas S Method of opening a medicine package
US4573976A (en) * 1984-05-24 1986-03-04 Dolores A. Smith Shielded needle
US4601711A (en) * 1984-12-24 1986-07-22 Ashbury Thomas W Syringe holder device for controlled force amplification syringe fluid flow
US4592744A (en) * 1985-08-14 1986-06-03 The University Of Virginia Alumni Patents Foundation Self-resheathing needle assembly
US4850994A (en) * 1985-10-11 1989-07-25 Physionic Gesellschaft fur Medizin-und, Systemtechnik GmbH Hypodermic syringe
US4631057A (en) * 1985-12-17 1986-12-23 Dolores A. Smith Shielded needle
US4655751A (en) * 1986-02-14 1987-04-07 Harbaugh John T Liquid dispensing and receiving syringe
US4643199A (en) * 1986-02-28 1987-02-17 Jennings Jr Baldwin P Safety blood sample apparatus
US4801295A (en) * 1986-05-22 1989-01-31 Spencer Treesa A Disposable hypodermic syringe and needle combination having retractable, accident preventing sheath
US4957490A (en) * 1986-12-16 1990-09-18 National Research Development Corporation Injection device
US4723943A (en) * 1986-12-31 1988-02-09 Montana Deaconess Medical Center Sheathed syringe
US4762516A (en) * 1987-03-05 1988-08-09 Luther Medical Products, Inc. Assembly of needle catheter protector
US4832696A (en) * 1987-03-05 1989-05-23 Luther Medical Products, Inc. Assembly of needle and protector
US4737144A (en) * 1987-03-09 1988-04-12 Choksi Pradip V Syringe with selectively exposed and enveloped needle
US4795443A (en) * 1987-04-16 1989-01-03 Peachtree Medical, Inc. Syringe sealing device and method
US4728321A (en) * 1987-04-16 1988-03-01 Ming-Chiu Wu Syringe cap with adhesive holding plug
US4767413A (en) * 1987-04-20 1988-08-30 Habley Medical Technology Corporation Dental syringe having an automatically retractable needle
US4892523A (en) * 1987-04-27 1990-01-09 Habley Medical Technology Corporation Shielded safety syringe
US4915702A (en) * 1987-04-27 1990-04-10 Habley Medical Technology Of California Shielded safety syringe
US4772272A (en) * 1987-05-11 1988-09-20 Mcfarland Barton C Needle protective sleeve
US4743234A (en) * 1987-05-18 1988-05-10 The Cloverline, Inc. Syringe magnifier
US4738663A (en) * 1987-06-04 1988-04-19 Bogan David B Hypodermic needle shield
US4850961A (en) * 1987-07-30 1989-07-25 Wanderer Alan A Indwelling placement device with guard
US4813426A (en) * 1987-11-09 1989-03-21 Habley Medical Technology Corporation Shielded safety syringe having a retractable needle
US4927416A (en) 1987-12-02 1990-05-22 National Medical Device Corporation User-protective hypodermic syringe holder
US5067490A (en) * 1988-01-05 1991-11-26 Habley Medical Technology Corporation Single use, safety blood collecting device
US4990141A (en) * 1988-01-15 1991-02-05 National Research Development Corporation Single-use syringe
US4935016A (en) * 1988-02-17 1990-06-19 Deleo John Syringe
US4840185A (en) * 1988-02-17 1989-06-20 Manuel Hernandez Blood sampling device with shield
US4938745A (en) * 1988-02-25 1990-07-03 Sagstetter William E Needle guard with visual confirmation of lock
US4878902A (en) * 1988-02-25 1989-11-07 Wanderer Alan A Needle guard for body substance isolation
US5067945A (en) * 1988-03-01 1991-11-26 Ryan Medical, Inc. Safety needled medical devices capable of one-handed manipulation
US5059185A (en) * 1988-03-01 1991-10-22 Ryan Medical, Inc. Safety needled medical devices
US5154699A (en) * 1988-03-01 1992-10-13 Ryan Medical, Inc. Safety winged needle device for use with fistulas
US5085639A (en) * 1988-03-01 1992-02-04 Ryan Medical, Inc. Safety winged needle medical devices
US5088982A (en) * 1988-03-01 1992-02-18 Ryan Medical, Inc. Safety winged needle medical devices
US4871355A (en) * 1988-05-17 1989-10-03 Steven Kikkawa Injury resistant needle and blood collection tube holder
US4898590A (en) * 1988-06-24 1990-02-06 Research Foundation Of The State University Of N.Y. Syringe having protective sleeve
US5088988A (en) * 1988-06-28 1992-02-18 Sherwood Medical Company Combined dental syringe and needle shield
US5013305A (en) * 1988-06-29 1991-05-07 Opie Eric A Needle safety system and method
US5207646A (en) 1988-06-30 1993-05-04 Marc Brunel Single use shieldable hypodermic syringe with a reusable handle
US5116319A (en) * 1988-08-26 1992-05-26 Advanced Protective Injection Systems B.V. Safety device for an injection syringe needle
US5069225A (en) * 1988-09-28 1991-12-03 Terumo Kabushiki Kaisha Blood collection and/or injection device and double-ended medical needle and holder therefor
US5266072A (en) * 1988-09-30 1993-11-30 Utterberg David S Guarded winged needle assembly
US4900310A (en) * 1988-10-07 1990-02-13 International Medication Systems Limited Protective device for cannula used to draw blood
US5030209A (en) * 1988-11-09 1991-07-09 Medical Safety Products, Inc. Holder for double ended blood collection retractable needle
US5007903A (en) * 1988-11-22 1991-04-16 Real World Design & Development Company Syringe adapted to prevent needle sticks
US4917669A (en) * 1989-02-08 1990-04-17 Safetyject Catheter inserter
US4946447A (en) * 1989-02-14 1990-08-07 Hardcastle Samuel L Protective cover for hypodermic needle
US4915701A (en) * 1989-02-21 1990-04-10 Halkyard Douglas R Protective device and syringe
US5070884A (en) * 1989-03-14 1991-12-10 Eastman Kodak Company Needle device for safely collecting blood or injecting drugs
US5057087A (en) * 1989-04-24 1991-10-15 Harmon James E Hypodermic needle safety system
US4946446A (en) * 1989-06-14 1990-08-07 Vadher Dinesh L Retractable needle
US5002537A (en) * 1989-10-23 1991-03-26 Gte Products Corporation Hypodermic syringe
US5120311A (en) * 1989-11-01 1992-06-09 Medical Safety Products, Inc. Blood collection tube holder
US5219339A (en) * 1989-11-17 1993-06-15 Masataka Saito Single use medical needle
US4974603A (en) * 1989-12-04 1990-12-04 Jerome Jacobs Needle ejector apparatus for a blood sample vacuum tube container
US5112307A (en) * 1990-04-24 1992-05-12 Habley Medical Technology Corp. Dental syringe having a medication filled carpule and an automatically-detaching piston stem
US5279581A (en) * 1990-05-09 1994-01-18 Firth John R Disposable self-shielding hypodermic syringe
US5086780A (en) * 1990-05-21 1992-02-11 Abbott Laboratories Blood collection device
US5045066A (en) * 1990-06-07 1991-09-03 Smith & Nephew, Inc. Dental needle with stick resistant protective sleeve
US5070885A (en) * 1990-06-11 1991-12-10 Care Medical Devices, Inc. Disposable blood collection device
US5131405A (en) * 1990-09-18 1992-07-21 Becton, Dickinson And Company Universal blood draw safety holder
US5108376A (en) * 1990-11-14 1992-04-28 Safetyject Retractable intravenous needle assembly
US5259841A (en) * 1991-02-25 1993-11-09 Gemini Trade Overseas Ltd. Safety syringe
US5104386A (en) * 1991-04-16 1992-04-14 Alzain Mohammed O Dental syringe apparatus
US5137521A (en) * 1991-08-19 1992-08-11 Alco Machine & Tool, Inc. Telescoping safety guard for hypodermic needles and the like
US5163917A (en) * 1991-09-26 1992-11-17 Norman Huefner Barrel mounted needle guard for hypodermic syringes
US5336185A (en) 1992-12-31 1994-08-09 Lynch Richard A Protection device for syringe needles
US5344407A (en) 1993-05-04 1994-09-06 Ryan Dana W Safety holder for pre-filled disposable syringe cartridge
US5498244A (en) 1993-09-22 1996-03-12 American Home Products Corporation Safety guard for medical instruments
US5330438A (en) * 1993-10-08 1994-07-19 Gollobin Peter J Protective sheath for butterfly needles and IV infusion set and sheath assembly
GB2283425A (en) 1993-10-19 1995-05-10 Yong Siang Toi Protective sheath for a syringe
US5385557A (en) 1994-04-04 1995-01-31 Thompson; Clarence J. Shielding device for a syringe needle

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110213313A1 (en) * 1999-12-07 2011-09-01 Sanofi-Aventis Safety assembly for a syringe
US20110213334A1 (en) * 1999-12-07 2011-09-01 Sanofi-Aventis Safety assembly for a syringe
US8979794B2 (en) 1999-12-07 2015-03-17 Sanofi-Aventis Safety assembly for a syringe
US8617105B2 (en) 1999-12-07 2013-12-31 Sanofi-Aventis Safety assembly for a syringe
US7963949B2 (en) 1999-12-07 2011-06-21 Sanofi-Aventis Safety assembly for a syringe
US20080312603A1 (en) * 1999-12-07 2008-12-18 Sanofi-Aventis Safety assembly for a syringe
US7429256B2 (en) 1999-12-07 2008-09-30 Sanofi-Aventis Safety system for a syringe
US8231571B2 (en) 1999-12-07 2012-07-31 Sanofi-Aventis Safety assembly for a syringe
US20020193746A1 (en) * 1999-12-07 2002-12-19 Stephane Chevallier Safety system for a syringe
US8235967B2 (en) 1999-12-07 2012-08-07 Sanofi-Aventis Safety assembly for a syringe
US7300420B2 (en) 2000-05-05 2007-11-27 Safety Syringes, Inc. Passive needle guard for syringes
US6623459B1 (en) 2000-05-05 2003-09-23 Safety Syringes, Inc. Passive needle guard for syringes
US6613022B1 (en) 2000-05-05 2003-09-02 Safety Syringes, Inc. Passive needle guard for syringes
US20050101917A1 (en) * 2000-05-05 2005-05-12 Safety Syringes, Inc. Passive needle guard for syringes
US20060036217A1 (en) * 2000-05-05 2006-02-16 Safety Syringes, Inc. Passive needle guard for syringes
US7101355B2 (en) 2000-05-05 2006-09-05 Safety Syringes, Inc. Passive needle guard for syringes
US20060184115A1 (en) * 2001-06-20 2006-08-17 Saied V C Anesthetizer with automatic needle decommissioning mechanism
US6808511B2 (en) * 2001-10-11 2004-10-26 Gary J. Pond Disposable aspirating safety syringe
US20030073958A1 (en) * 2001-10-11 2003-04-17 Inter-Med, Llc Disposable aspirating safety syringe
US20040152042A1 (en) * 2002-03-29 2004-08-05 Lawter James R. Dispensing apparatus and cartridge with deformable tip
WO2003082139A1 (en) * 2002-03-29 2003-10-09 Orapharma, Inc. Dispensing apparatus and cartridge
US7699609B2 (en) 2002-03-29 2010-04-20 Orapharma, Inc. Dispensing apparatus and cartridge with deformable tip
US6682348B2 (en) * 2002-03-29 2004-01-27 Orapharma, Inc. Dispensing apparatus and cartridge
US20030199830A1 (en) * 2002-04-17 2003-10-23 Nguyen Steven Huu Retractable safety infusion needle
US6835190B2 (en) 2002-04-17 2004-12-28 Smiths Medical Asd, Inc. Retractable safety infusion needle
US20060189936A1 (en) * 2003-06-27 2006-08-24 Carlyon James L Safety needle shield apparatus
US8486015B2 (en) 2003-06-27 2013-07-16 Covidien Ag Safety needle shield apparatus
US7037292B2 (en) 2003-06-27 2006-05-02 Sherwood Services Ag Safety needle shield apparatus
US20040267200A1 (en) * 2003-06-27 2004-12-30 Carlyon James L. Safety needle shield apparatus
US9504786B2 (en) 2003-06-27 2016-11-29 Covidien Ag Safety needle shield apparatus
US7500963B2 (en) 2003-07-22 2009-03-10 Safety Syringes, Inc. Systems and methods for automatic medical injection with safeguard
US20050020979A1 (en) * 2003-07-22 2005-01-27 Safety Syringes, Inc. Systems and methods for automatic medical injection with safeguard
US20050096600A1 (en) * 2003-11-04 2005-05-05 Hui-Chiang Lin Safety sleeve for hiding cannula of syringes
WO2006105006A2 (en) * 2005-03-31 2006-10-05 Milestone Scientific, Inc. Safety syringe
WO2006105006A3 (en) * 2005-03-31 2009-06-04 Milestone Scientific Inc Safety syringe
US9731080B2 (en) 2005-04-06 2017-08-15 Cilag Gmbh International Injection device
US7699814B2 (en) 2005-05-17 2010-04-20 Ralph Lande Syringe sheath
US20060264887A1 (en) * 2005-05-17 2006-11-23 Lande Lloyd J Syringe sheath
US8372044B2 (en) 2005-05-20 2013-02-12 Safety Syringes, Inc. Syringe with needle guard injection device
US20070066937A1 (en) * 2005-09-22 2007-03-22 Tyco Healthcare Group Lp Safety needle with lockout mechanism
US7824378B2 (en) 2005-09-22 2010-11-02 Tyco Healthcare Group Lp Non-axial return spring for safety needle
US20100241072A1 (en) * 2005-09-22 2010-09-23 Tyco Healthcare Group Lp Safety Needle with Lockout Mechanism
US7753878B2 (en) 2005-09-22 2010-07-13 Tyco Healthcare Group Lp Safety needle with lockout mechanism
US7611486B2 (en) 2005-09-22 2009-11-03 Tyco Healthcare Group Lp Needle retraction structure
US20070066960A1 (en) * 2005-09-22 2007-03-22 Tyco Healthcare Group Lp Needle retraction structure
US8591473B2 (en) 2005-09-22 2013-11-26 Covidien Lp Manually retracted safety needle with rigid wing structure
US9005167B2 (en) 2005-09-22 2015-04-14 Covidien Lp Non-axial return spring for safety needle
US8622958B2 (en) 2005-09-22 2014-01-07 Covidien Lp Safety needle with lockout mechanism
US9757520B2 (en) 2006-06-01 2017-09-12 Cilag Gmbh International Injection device
US7976490B2 (en) 2007-12-04 2011-07-12 Orapharma, Inc. Medicinal implant cartridge
US7976491B2 (en) 2007-12-04 2011-07-12 Orapharma, Inc. Actuators for device for delivering medicinal implants
US20090142728A1 (en) * 2007-12-04 2009-06-04 Lawter James R Actuators for device for delivering medicinal implants
US20090148500A1 (en) * 2007-12-04 2009-06-11 Lawter James R Medicinal implant cartridge
US7976489B2 (en) 2007-12-04 2011-07-12 Orapharma, Inc. Device for delivering medicinal implants
US8480615B2 (en) 2007-12-04 2013-07-09 Orapharma, Inc. Device for delivering medicinal implants
US20090171298A1 (en) * 2007-12-13 2009-07-02 University Of Victoria Innovation And Development Corporation Syringe with extendable and retractable needle
US20090247952A1 (en) * 2008-03-31 2009-10-01 Tyco Healthcare Group Lp Safety Needle with Spring Based Retraction Mechanism
US9259533B2 (en) 2008-03-31 2016-02-16 Covidien Lp Safety needle with spring biased retraction mechanism
US8048021B2 (en) 2008-12-02 2011-11-01 Orapharma, Inc. Medicinal implant device and cartridge
US20100136502A1 (en) * 2008-12-02 2010-06-03 Zhangwen Wu Medicinal implant device and cartridge
US9566141B2 (en) 2008-12-02 2017-02-14 Orapharma, Inc. Medicinal implant device and cartridge
US8128594B1 (en) * 2010-11-03 2012-03-06 Chang li-feng Safety syringe
USD748253S1 (en) 2014-03-03 2016-01-26 Sanofi Cap for a medicament injection device
USD782033S1 (en) 2014-03-03 2017-03-21 Sanofi Medicament injection device
USD787046S1 (en) 2014-03-03 2017-05-16 Sanofi Medicament injection device
USD789519S1 (en) 2014-03-03 2017-06-13 Sanofi Medicament injection device
USD739932S1 (en) * 2014-03-03 2015-09-29 Sanofi Medicament injection device
USD753291S1 (en) 2014-03-03 2016-04-05 Sanofi Medicament injection device
USD802751S1 (en) 2014-03-03 2017-11-14 Sanofi Medicament injection device
USD812740S1 (en) 2014-03-03 2018-03-13 Sanofi Medicament injection device

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