GB1595204A - Multiple dose injection syringe - Google Patents

Multiple dose injection syringe Download PDF

Info

Publication number
GB1595204A
GB1595204A GB3209277A GB3209277A GB1595204A GB 1595204 A GB1595204 A GB 1595204A GB 3209277 A GB3209277 A GB 3209277A GB 3209277 A GB3209277 A GB 3209277A GB 1595204 A GB1595204 A GB 1595204A
Authority
GB
United Kingdom
Prior art keywords
syringe
pack
neck
clip
support member
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
Application number
GB3209277A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisons Ltd
Original Assignee
Fisons Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fisons Ltd filed Critical Fisons Ltd
Priority to GB3209277A priority Critical patent/GB1595204A/en
Priority to AU38381/78A priority patent/AU516792B2/en
Publication of GB1595204A publication Critical patent/GB1595204A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159—Dose expelling manners
    • A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
    • A61M5/31595—Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
    • A61M5/3158—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by axially moving actuator operated by user, e.g. an injection button
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3129—Syringe barrels
    • A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
    • A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/204—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically connected to external reservoirs for multiple refilling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31525—Dosing

Description

(54) MULTIPLE DOSE INJECTION SYRINGE (71) We, FISONS LIMITED, a British Company, of Fisons House, 9 Grosvenor Street, London WIX OAH do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention concerns improvements on or relating to multiple dose injection syringes.
By the term 'multiple dose injection syringes' as used herein is meant hypodermic injection syringes capable of delivering a number of consecutive doses of an injectable preparation without requiring refilling or recharging after each delivery.
Such syringes have been widely used hitherto, especially in veterinary medicine for the injection of a succession of farm animals. For example, they have been widely used for injecting animals with iron preparations for the prevention of irondeficiency anaemia.
Injectable veterinary preparations are often supplied bulk in collapsible packs made of a plastics material and sealed with a conventional serum cap. In use, they progressively collapse so that, at all times, air Is kept out of contact with the preparation.
Such a pack is usually hung around the neck of the operator and the pack is connected to a conventional multiple dose injection syringe by means of a hollow needle which pierces the serum cap, and a length of flexible tubing down which the preparation pas ses to the svringe. Typically, the flexible tub- ing is 2 or 3 feet in length, and this gives rise to several serious disadvantages. An operator must usually secure the animal before injection so as to ensure that it cannot escape or move excessively during the injection, and this normally requires the use of both hands at least for some of the time.
There are clearly disadvantages and dangers involved in releasing the syringe so that it dangles freely at the end of the flexible tube during the securing of the animal.
This invention seeks to provide a means whereby these disadvantages and dangers are removed or at least mitigated.
Accordingly, in one aspect, this invention provides a multiple dose injection syringe provided with a rigid support member for directly supporting thereon a collapsible pack of an injectable preparation, wherein the support member is attached at one end to the body of the syringe and is provided at the other end thereof with a spring clip adapted to receive and substantially surround the neck of such a pack when urged laterally thereinto, and wherein there is provided a flexible passageway for the injectable preparation connected at one end to the syringe body and which terminates at its free end in a hollow needle capable of piercing the serum cap of said pack, the flexible passageway being such that when the needle has pierced the serum cap the neck of said pack may be urged laterally into said clip.
For reasons of stability, it is preferred that the flexible passageway for the injectable preparation be resilient, and such that its relaxed position is such that the neck of the collapsible pack, when pierced by the hollow needle, rests in the spring clip and requires urging against said resilience in order to remove the neck of the pack from the clip. This may be conveniently achieved by forming the flexible passageway of a suitable gauge tube of a resilient plastics material and by making the flexible passageway as short as possible, e.g. one inch or less, so that it is substantially straight when the pack, pierced by the needle, is secured in the clip.
It is also preferred that the point of connection of the flexible passageway with the syringe body be spaced apart along the length of the syringe from the point at which the support member is attached thereto.
The spring clip is preferably adapted to receive that portion of the neck of the pack which lies immediately below the serum cap, and is preferably such that the serum cap, welch conventlonally proJects beyond the periphery of the neck, cannot pass through the clip. This prevents the pack from being simply pulled off the hollow needle associated with the flexible passageway, and necessitates releasing the neck of the pack from the clip before this can occur.
The clip is preferably such that the neck of the pack may be released therefrom merely by urging it laterally in the opposite direction to that required to urge it into the clip. A suitable form of clip is that known as a 'Terry' (Registered Trade Mark) clip.
The means by which the support member is attached to the body of the syringe preferably comprises a bifurcated end or a hole in the end of the member which surrounds or substantially surrounds the body of the syringe and is held fast thereon by a fastening device, for example a nut. However, any suitable means of attaching the support member to the body of the syringe may be employed.
If desired, there may be provided a bifurcated portion of the support member which contacts and substantially surrounds the passageway for the injectable preparation to the syringe, and which bears on a projection on the passageway to prevent umntentlona dislocation of the needle from the pack.
Naturally, the bifurcated portion must be such that it allows the lateral movement necessary for engagement of the neck of the pack in the clip.
Desirably, when supported in accordance with the invention, the pack lies with its longitudinal axis making an acute angle with the longitudinal axis of the syringe such that it slopes away from the needle.
To counteract any tendency for the pack to rotate under gravity about the longitudinal axis of the syringe, there is desirably provided an abutment on the body of the syringe to prevent the pack support means from rotating relative thereto. Conveniently, the abutment may comprise a finger grip on the syringe.
The following description of an embodiment of the invention is now given, by way of illustration only, with reference to the accompanying drawings, in which: Figure 1 is a plan view of a multiple dose injection syringe construction in accordance with the invention, and Figure 2 is a perspective view of the rigid support member of the device of Figure 1.
In Figure 1 there is shown a conventional multiple dose injection syringe 1 comprising a body 2 within which slides a plunger 3, operable by pressure applied manually to end 4 to expel injection preparation from the chamber 5 through needle 6. A collapsible pack 7 containing an injectable preparation is provided with its axis at an acute angle to that of the syringe, and has its neck portion 8 connected with the body 2 of the syringe via a hollow needle (not shown but provided on coupling piece 18), which pierces serum cap 22 provided on the neck of the pack, and via a short flexible coupling tube 10 and a non-return valve assembly 9.
The coupling allows the injectable preparation to pass from the pack into the chamber 5. At the end of the body 2 of the syringe nearer the end 4 is provided a finger gripping member 11 mounted non-rotatably thereon. Extending between the body of the syringe, from a position immediately behind the finger gripping member 11, to the neck 8 of the collapsible pack is a rigid support member 12. The member 12 comprises a shaped metal strip which, at its end 13, has a bifurcation provided therein which surrounds the body 2 of the syringe and is secured thereon by a nut 23. The strip is shaped to provide a portion 14 thereof through a hole in which the topmost portion 15 of the finger gripping member 11 extends. Rotation of the strip relative to the syringe is prevented by the mutual abutment of the portions 14 and 15. At the end of the ribbon 12 remote from end 13 is provided a 'Terry' Registered Trade Mark) metal spring clip 16 which substantially surrounds the neck portion 8 of the collapsible pack to secure it therein, at the same time preventing serum cap 22 passing therethrough. Also provided at the same end as the spring clip 16 is a bifurcated portion 17 in which lies the rigid coupling piece 18 which provides communication between the pack and the flexible coupling tube 10. The bifurcated portion 17 abuts an annular projection 19 on the piece 18 and ensures that the piece 18 cannot fall from the neck of the pack.
In use, when the collapsible pack 7 is exhausted, it may simply be removed by springing it out of the clip 16 in the direction of arrow A, the flexible tube 10 bending to allow the movement. The pack is then withdrawn from the hollow needle (not shown) formed integrally with the rigid piece 18. A new pack is installed by the reverse of that procedure. During the securing of the animal prior to injection the syringe and associated pack may be laid down in a convenient position, to be picked up again and used when appropriate, thereby obviating the disadvantages and dangers of the prior art methods described.
The support member 12 shown in Figure 2 is the same as that shown in plan in Figure 1 but the bifurcation 20 and the hole 21 respectively in the end 13 and the portion 14 are more clearly shown as is the bifurcated portion 17.
WHAT WE CLAIM IS: 1. A multiple dose injection syringe provided with a rigid support member for directly supporting thereon a collapsible pack of an injectable preparation, wherein the support member is attached at one end to the body of the syringe and is provided at the other end thereof with a spring clip adapted to receive and substantially sur
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. necessitates releasing the neck of the pack from the clip before this can occur. The clip is preferably such that the neck of the pack may be released therefrom merely by urging it laterally in the opposite direction to that required to urge it into the clip. A suitable form of clip is that known as a 'Terry' (Registered Trade Mark) clip. The means by which the support member is attached to the body of the syringe preferably comprises a bifurcated end or a hole in the end of the member which surrounds or substantially surrounds the body of the syringe and is held fast thereon by a fastening device, for example a nut. However, any suitable means of attaching the support member to the body of the syringe may be employed. If desired, there may be provided a bifurcated portion of the support member which contacts and substantially surrounds the passageway for the injectable preparation to the syringe, and which bears on a projection on the passageway to prevent umntentlona dislocation of the needle from the pack. Naturally, the bifurcated portion must be such that it allows the lateral movement necessary for engagement of the neck of the pack in the clip. Desirably, when supported in accordance with the invention, the pack lies with its longitudinal axis making an acute angle with the longitudinal axis of the syringe such that it slopes away from the needle. To counteract any tendency for the pack to rotate under gravity about the longitudinal axis of the syringe, there is desirably provided an abutment on the body of the syringe to prevent the pack support means from rotating relative thereto. Conveniently, the abutment may comprise a finger grip on the syringe. The following description of an embodiment of the invention is now given, by way of illustration only, with reference to the accompanying drawings, in which: Figure 1 is a plan view of a multiple dose injection syringe construction in accordance with the invention, and Figure 2 is a perspective view of the rigid support member of the device of Figure 1. In Figure 1 there is shown a conventional multiple dose injection syringe 1 comprising a body 2 within which slides a plunger 3, operable by pressure applied manually to end 4 to expel injection preparation from the chamber 5 through needle 6. A collapsible pack 7 containing an injectable preparation is provided with its axis at an acute angle to that of the syringe, and has its neck portion 8 connected with the body 2 of the syringe via a hollow needle (not shown but provided on coupling piece 18), which pierces serum cap 22 provided on the neck of the pack, and via a short flexible coupling tube 10 and a non-return valve assembly 9. The coupling allows the injectable preparation to pass from the pack into the chamber 5. At the end of the body 2 of the syringe nearer the end 4 is provided a finger gripping member 11 mounted non-rotatably thereon. Extending between the body of the syringe, from a position immediately behind the finger gripping member 11, to the neck 8 of the collapsible pack is a rigid support member 12. The member 12 comprises a shaped metal strip which, at its end 13, has a bifurcation provided therein which surrounds the body 2 of the syringe and is secured thereon by a nut 23. The strip is shaped to provide a portion 14 thereof through a hole in which the topmost portion 15 of the finger gripping member 11 extends. Rotation of the strip relative to the syringe is prevented by the mutual abutment of the portions 14 and 15. At the end of the ribbon 12 remote from end 13 is provided a 'Terry' Registered Trade Mark) metal spring clip 16 which substantially surrounds the neck portion 8 of the collapsible pack to secure it therein, at the same time preventing serum cap 22 passing therethrough. Also provided at the same end as the spring clip 16 is a bifurcated portion 17 in which lies the rigid coupling piece 18 which provides communication between the pack and the flexible coupling tube 10. The bifurcated portion 17 abuts an annular projection 19 on the piece 18 and ensures that the piece 18 cannot fall from the neck of the pack. In use, when the collapsible pack 7 is exhausted, it may simply be removed by springing it out of the clip 16 in the direction of arrow A, the flexible tube 10 bending to allow the movement. The pack is then withdrawn from the hollow needle (not shown) formed integrally with the rigid piece 18. A new pack is installed by the reverse of that procedure. During the securing of the animal prior to injection the syringe and associated pack may be laid down in a convenient position, to be picked up again and used when appropriate, thereby obviating the disadvantages and dangers of the prior art methods described. The support member 12 shown in Figure 2 is the same as that shown in plan in Figure 1 but the bifurcation 20 and the hole 21 respectively in the end 13 and the portion 14 are more clearly shown as is the bifurcated portion 17. WHAT WE CLAIM IS:
1. A multiple dose injection syringe provided with a rigid support member for directly supporting thereon a collapsible pack of an injectable preparation, wherein the support member is attached at one end to the body of the syringe and is provided at the other end thereof with a spring clip adapted to receive and substantially sur
round the neck of such a pack when urged laterally thereinto, and where there is provided a flexible passageway for the injectable preparation connected at one end to the syringe body and which terminates at its free end in a hollow needle capable of piercing the serum cap of said pack, the flexible passageway being such that when the needle has pierced the serum cap the neck of said pack may be urged laterally into said clip.
2. A syringe according to claim 1, wherein the flexible passageway is resilient and such that its relaxed position is one in which the neck of the collapsible pack, when pierced by the hollow needle, rests in the spring clip.
3. A syringe according to claim 1, or claim 2 wherein the flexible passageway is substantially straight when the neck of the pack is received by said clip after the serum cap has been pierced by said needle.
4. A syringe according to any of claims 1 to 3, wherein the point of connection of the flexible passageway with the syringe body is spaced apart along the length of the syringe from the point at which the support member is attached thereto.
5. A syringe according to any of claims 1 to 4 wherein the spring clip is adapted to receive that portion of the neck of the pack which lies immediately below the serum cap.
6. A syringe according to claim 5, wherein the clip is such that the serum cap cannot pass therethrough.
7. A syringe according to any of claims 1 to 6 wherein a bifurcated portion is provided on the support member, which portion contacts and substantially surrounds the passageway for the injection preparation to the syringe, and which bears on a projection on the passageway to prevent unintentional dislocation of the needle from the pack.
8. A syringe according to any of claims 1 to 7 and substantially as described herein with reference to the accompanying drawings.
GB3209277A 1977-07-30 1977-07-30 Multiple dose injection syringe Expired GB1595204A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3209277A GB1595204A (en) 1977-07-30 1977-07-30 Multiple dose injection syringe
AU38381/78A AU516792B2 (en) 1977-07-30 1978-07-26 Multiple dose injection syringes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3209277A GB1595204A (en) 1977-07-30 1977-07-30 Multiple dose injection syringe

Publications (1)

Publication Number Publication Date
GB1595204A true GB1595204A (en) 1981-08-12

Family

ID=10333109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3209277A Expired GB1595204A (en) 1977-07-30 1977-07-30 Multiple dose injection syringe

Country Status (2)

Country Link
AU (1) AU516792B2 (en)
GB (1) GB1595204A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483759A1 (en) * 1990-11-02 1992-05-06 Baxa Corporation Patient controlled infusion apparatus and method
WO1998043690A1 (en) * 1997-03-29 1998-10-08 Ji Hoon Park Continuous injecting apparatus
US7699804B2 (en) 2003-01-31 2010-04-20 Creare Inc. Fluid ejection system
US20130312793A1 (en) * 2011-02-11 2013-11-28 Oro Clean Chemie Ag Method and device for cleaning medical instruments

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483759A1 (en) * 1990-11-02 1992-05-06 Baxa Corporation Patient controlled infusion apparatus and method
WO1998043690A1 (en) * 1997-03-29 1998-10-08 Ji Hoon Park Continuous injecting apparatus
US6475193B1 (en) 1997-03-29 2002-11-05 Ji Hoon Park Continuous injecting apparatus
US7699804B2 (en) 2003-01-31 2010-04-20 Creare Inc. Fluid ejection system
US20130312793A1 (en) * 2011-02-11 2013-11-28 Oro Clean Chemie Ag Method and device for cleaning medical instruments

Also Published As

Publication number Publication date
AU516792B2 (en) 1981-06-25
AU3838178A (en) 1980-01-31

Similar Documents

Publication Publication Date Title
EP0909189B1 (en) A safety syringe
US5836911A (en) Injection device having positioning means
US4857057A (en) Endoscope treatment device
US2699167A (en) Hypodermic injector
AU631376B2 (en) Hypodermic syringe holder
US6565538B2 (en) Orientationally adjustable marking syringe
US3884230A (en) Flexible needle and guard device for a hypodermic syringe
JP4892161B2 (en) Flexible needle assembly
EP0064548B1 (en) Drops sensing unit and associated drip chamber for iv fluid administration
US4601708A (en) Automatic injection for syringe needle, and assembly
US5312369A (en) Safety hood for hypodermic needles
JPH01135354A (en) Apparatus with safety locking member for connecting injector to drug container
EP0255025A1 (en) Device for coupling a small tube to an apparatus adapted for fitting a syringe to a drug holding bottle
WO1997027834A9 (en) Injection device having positioning means
PT79923B (en) A safety device for connection of a syringe with the mouth or opening of a bottle containing a drug or a small tube for drug delivery from the syring
PL345360A1 (en) A medication delivery device and a cartridge assembly for use in the same
NO168747B (en) SPROEYTEKOBLING.
US3993065A (en) Fluid infusion apparatus
EP0295143A3 (en) Article and method for the oral dosing of fluidic material to patients
US4547189A (en) Insulin syringe injector apparatus with auto-aspirator feature
GB1595204A (en) Multiple dose injection syringe
US3548824A (en) Plunger extension for disposable ampoules
US5147324A (en) Prefilled syringe delivery system
US10799645B2 (en) Dosage limiting device
JP4542547B2 (en) Administration system for administering injectable preparations

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee