GB2388032A - Medical Agent Delivery - Google Patents

Medical Agent Delivery Download PDF

Info

Publication number
GB2388032A
GB2388032A GB0210020A GB0210020A GB2388032A GB 2388032 A GB2388032 A GB 2388032A GB 0210020 A GB0210020 A GB 0210020A GB 0210020 A GB0210020 A GB 0210020A GB 2388032 A GB2388032 A GB 2388032A
Authority
GB
United Kingdom
Prior art keywords
agent
reservoir
needle
chamber
anaesthetic
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.)
Withdrawn
Application number
GB0210020A
Other versions
GB0210020D0 (en
Inventor
Keith Allman
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.)
ROYAL DEVON AND EXETER HEALTHC
Original Assignee
ROYAL DEVON AND EXETER HEALTHC
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 ROYAL DEVON AND EXETER HEALTHC filed Critical ROYAL DEVON AND EXETER HEALTHC
Priority to GB0210020A priority Critical patent/GB2388032A/en
Publication of GB0210020D0 publication Critical patent/GB0210020D0/en
Publication of GB2388032A publication Critical patent/GB2388032A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A61M5/28Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/281Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
    • A61M5/282Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The present invention relates to the field of drug delivery, and in particular relates to the delivery of an agent through the skin of a patient by means of a needle. A problem for hospitals is the administrative and cost burden of providing this application of local anaesthetic. A nurse will have to obtain a fine needle, the syringe body and a vial of anaesthetic. The anaesthetic must be kept in a separate location as it is a drug. Hence providing a dose of local anaesthetic for a cannula insertion requires access to components in at least two distinct locations, as well as the assembly of three components to arrive at an anaesthetic-loaded syringe. It is an object of the present invention to provide a simplified agent delivery system which overcomes the problems outlined above, as well as providing a new agent delivery system which has wide application for the delivery of single doses of agent. According to the present invention there is provided a device for delivering liquid agent through a body surface, comprising a manually squeezable reservoir 11 for the liquid agent, and a hollow needle 12 in fluid communication with the reservoir, whereby on squeezing of the reservoir, agent may be ejected from the reservoir through the needle.

Description

( 2388032
MEDICAL AGENT DELIVERY
The present invention relates to the field of drug delivery, and in particular
relates to the delivery of an agent through the skin of a patient by means of a needle. It is well known to use a syrmge for the delivery of drugs through the skin or a mucosal surface of a patient. A syringe comprises a piston compartment into which may be drawn a hound agent to be delivered. and a hollow needle 10 through which the drug is injected by depressing of the piston.
A patient undergoing medical treatment may be provided with an intravenous drip for the continuous delivery of agents. These may be analgesics' hydration fluids or nutrients as well as drugs for treatment of particular conditions. A 15 drip system typically includes a reservoir of the liquid agent to be delivered, in the form of a bag with a delivery tube leading from a lower end thereof. The bag is hung from a height above the patient in order to provide a gravity feed effect. A distal end of the delivery tube Is attached to a cannula which is inserted through the skin of the patient and into a vein for agent delivery to the 0 bloodstream.
( The cannula is typically of relatively large diameter as compared to needles of hypodermic syringes used tor agent dehvery. Because of this. insertion of the cannula into the vem can be painful for the patient. Hence it is common practice to precede the fitting of a cannula with the administration of a dose of s local anesthetic to the area in which the cannula Is to be inserted. For this purpose a disposable hypodermic syringe Is used along with a suitable dose of anaesthetic. The anaesthetc may be provided from a single dose glass vial having a breakable nib portion. Breaking of the nib allows mserton ot the syringe needle into the vial for uptake ot anaesthetic. The anaesthetc Is then 10 Injected into the desired of the patient e.g. the arm. A fine needle is used to mnmise the pain of introducing the anaesthetic.
A problem for hospitals Is the administrative and cost burden of providing this application of local anaesthetc. A nurse will have to obtain a fine needle the 15 synuge body and a vial of anaesthetic. The anaesthetic must be kept in a separate location as it Is a drug. Hence providing a dose of local anaesthetic for a cannula mserton requires access to components m at least two distinct locations as well as the assembly of three components to arrive at an anaesthetic-loaded syringe.
It is an object of the present invention to provide a simplified agent delivery system which overcomes the problems outlined above. as well as providing a new agent delivery system which has wide application for the delivery of single doses of agent.
s According to the present invention there is provided a device for delivering liquid agent through a body surface composing a manually squeezable reservoir for the liquid agent and a hollow needle m fluid communication with the reservoir' whereby on squeezing of the reservoir agent may be trom the 10 reservoir ejected through the needle.
In use the reservoir must be full or substantially full' of agent in order to ensure that a squeeze of the reservoir ejects liquid.
15 The reservoir may be pre-loaded with agent. In this way the requirement for a separate drug and device locations In the prior art may be avoided. In this case
the whole device may be stored as a drug in a single location.
In a preferred embodiment the agent is a local anaesthetic of sufficient dose to 0 provide pain relief for the insertion of a cannula. However it is within the
scope of the invention for the agent to be any medically acceptable agent or drug. The agent is preferably provided in sufficient quantity for a single dose of the agent.
5 The squeezable reservoir may comprise a chamber formed from resilient material. The chamber may be formed with a needle-engaging exit aperture, and the needle is provided with a corresponding chamber engaging collar portion. 10 Preferably the resilient material is a clear plastics matenal, so that the liquid content is visible.
In a preferred configuration, the chamber has the general t'orrn of a frusto-cone pinched at a wide end thereof to form an elongate seam which defines a join 15 between two side walls of the chamber.
Typically the device is provided hermetically sealed in packaging.
In another aspect of the mventon the device Is provided in a single package in 90 disassembled form, with the needle detached from the reservoir.
In yet another aspect of the invention the device is provided packaged and pre-assembled and loaded with agent so as to function as a unitary disposable single-use device.
5 Following is a description by way of example only and with reference to the
figure of the drawings of one method of putting the invention into effect.
In the drawings: lo Figure 1 is a side view of a device according to the invention.
Figure 2 is a top view of the device.
Figure 3 is a side view of a protective cap for the needle of the device.
A device according to the Invention is shown generally as 10 in figure 1. The device comprises an agent reservoir 11 and a hypodermic needle 12. The reservoir comprises a chamber having the general form of frusto-cone, pinched at a wide end thereof to form an elongate seam 13. The seam defines top and 20 bottom side walls 14,15 of the device. The chamber shape and dimensions are
known and readily available as "moms" used in the delivery of eye anaesthetic (with no suggestion however of the use of an associated needle).
The chamber is formed from a resilient clear plastics polymer material, such as polyethylene terephthalate or the like.
The needle has a conventional tubular form with an oblique slice at one end 16 to form a skin piercing sharp powt. The other end of the needle is provided with an annular collar 17. The collar Is formed from plastics material and provides a recess which accommodates a narrow end 18 of the reservoir 10 chamber 11. The narrow end is formed as a tubular spigot (not shown) which engages with the interior of the annular collar to join the needle and chamber.
The engagement may for example be a simple friction tit, a screw threaded fit, an adhesive Join or a snap engagement. The tubular spigot provides fluid communication with the bore of the needle for delivery of agent.
The chamber is loaded with a liquid agent (not shown). In the present embodiment the agent is a local anaesthetc. The liquid substantially fills the chamber so that on manual squeezing of top and bottom side walls, between the thumb and index finger of the healthcare worker, agent is forced out of the 20 reservoir and through the needle. In use the needle is revealed by removal of
the tubular end cap 20 shown in figure 3. The needle is first inserted into the skin of the patient and then the chamber squeezed to inject fluid. The device may be discarded after use, preferable with the end cap 20 re-attached for safe disposal.

Claims (1)

  1. Claims
    1. A device for delivering liquid agent through a body surface. comprising a manually squeezable reservoir for the liquid agent, and a hollow needle in fluid 5 communication with the reservoir, whereby on squeezing of the reservoir, agent may be ejected from the reservoir through the needle.
    2. A device as claimed m claim 1 wherein the reservoir is pre-loaded with agent. 3. A device as claimed in claim 2 wherein the agent is a local anaesthetic.
    4. A device as claimed in claim 3 wherem the dose is sufficient to provide pain relief for the insertion of an intravenous cannula m the human body.
    5. A device as claimed in any preceding claim wherein the squeezable reservoir comprises a chamber formed from resilient material.
    6. A device as claimed in claim 5 wherein the chamber is formed with a 20 needle-engaging exit aperture, and the needle is provided with a corresponding
    chamber engaging collar portion.
    7. A device as claimed in claim 5 or claim 6 wherem the resilient material is a clear plastics material.
    s 8. A device as claimed in any of claims 5 to 7 wherein the chamber has the general form of a frusto-cone pinched at a wide end thereof to form an elongate seam which defines a join between two side walls of the chamber.
    10 9. A device as claimed in any preceding claim and hermetically sealed in packaging. 10. A package composing a device as claimed in any preceding claim wherein the device is provided in disassembled form. with the needle detached from the 15 reservoir.
    11. A package comprising a device as claimed in any of claims 1 to 9 wherein the reservoir is loaded with a liquid agent.
    20 12. A package as claimed in claim 11 wherein the agent is a local anaesthetic.
    13. A package comprising a device as claimed m any of claims I to 9 wherein the device is assembled and loaded with agent to provide a unitary disposable single-use liquid agent delivery device.
    5 14. A device substantially as hereinbefore described with reference to the figures of the drawings.
GB0210020A 2002-05-01 2002-05-01 Medical Agent Delivery Withdrawn GB2388032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0210020A GB2388032A (en) 2002-05-01 2002-05-01 Medical Agent Delivery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0210020A GB2388032A (en) 2002-05-01 2002-05-01 Medical Agent Delivery

Publications (2)

Publication Number Publication Date
GB0210020D0 GB0210020D0 (en) 2002-06-12
GB2388032A true GB2388032A (en) 2003-11-05

Family

ID=9935911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0210020A Withdrawn GB2388032A (en) 2002-05-01 2002-05-01 Medical Agent Delivery

Country Status (1)

Country Link
GB (1) GB2388032A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2461886A (en) * 2008-07-16 2010-01-20 Donald Charles Davey A palm held hypodermic device
US10321968B2 (en) 2015-10-23 2019-06-18 Medline Industries, Inc. Sharps container

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986478A (en) * 1962-07-06 1965-03-17 Johnson & Johnson Medicinal applicator
US4018222A (en) * 1975-02-10 1977-04-19 Merck & Co., Inc. Syringe containing frozen vaccine
GB1582265A (en) * 1972-09-29 1981-01-07 Eck W F Van Hypodermic syringe
US4548601A (en) * 1984-04-09 1985-10-22 Lary Banning G Prepackaged, injectable pharmaceutical and hypodermic needle combination
GB2206794A (en) * 1987-07-14 1989-01-18 Richard Kiteley Power Syringe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986478A (en) * 1962-07-06 1965-03-17 Johnson & Johnson Medicinal applicator
GB1582265A (en) * 1972-09-29 1981-01-07 Eck W F Van Hypodermic syringe
US4018222A (en) * 1975-02-10 1977-04-19 Merck & Co., Inc. Syringe containing frozen vaccine
US4548601A (en) * 1984-04-09 1985-10-22 Lary Banning G Prepackaged, injectable pharmaceutical and hypodermic needle combination
GB2206794A (en) * 1987-07-14 1989-01-18 Richard Kiteley Power Syringe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2461886A (en) * 2008-07-16 2010-01-20 Donald Charles Davey A palm held hypodermic device
US10321968B2 (en) 2015-10-23 2019-06-18 Medline Industries, Inc. Sharps container
US11559369B2 (en) 2015-10-23 2023-01-24 Medline Industries, Lp Sharps container
US12082951B2 (en) 2015-10-23 2024-09-10 Medine Industries, LP Sharps container

Also Published As

Publication number Publication date
GB0210020D0 (en) 2002-06-12

Similar Documents

Publication Publication Date Title
JP5762413B2 (en) Assembly kit for manufacturing prefilled syringes
JP5837119B2 (en) Reusable self-injector
US5207658A (en) Prick resistant medical needle for intravenous injections
US5584819A (en) Nested blunt/sharp injection assembly
UA47468C2 (en) Injection needle
EP2432528B1 (en) Steroid delivery system
BRPI0609008A2 (en) filling system and method for small needle syringes
JPH0613054B2 (en) Injection injector
US20020065484A1 (en) Dual lumen subcutaneous injection set for use with a reservoir that has a septum
JP2013514113A (en) Syringe
US20080119797A1 (en) System with a syringe device and a needle device
JPS6072561A (en) Two-drug component syringe having vein display capacity
US20040147883A1 (en) Liquid aspirating and medicine adding injection needle
WO2017001921A1 (en) Multiple-dose dispensing device
AU2011261226B2 (en) Systems and methods for a medical syringe
US5624407A (en) Medication injecting device and accessories therefor
US20180193572A1 (en) Single use delivery device
JP7386851B2 (en) Syringe assembly and adapter parts
US20030233074A1 (en) IV access connectors for syringes with needles
JP4153736B2 (en) Needle
WO2009031144A1 (en) Envelope containing sterile needle
US20130226144A1 (en) IV Start Device and Method
EP1575646A2 (en) Infusion apparatus for infusion bags
JPH09299484A (en) Syringe spray pump
GB2388032A (en) Medical Agent Delivery

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)