GB2196256A - Syringe pump safety lock - Google Patents

Syringe pump safety lock Download PDF

Info

Publication number
GB2196256A
GB2196256A GB08615531A GB8615531A GB2196256A GB 2196256 A GB2196256 A GB 2196256A GB 08615531 A GB08615531 A GB 08615531A GB 8615531 A GB8615531 A GB 8615531A GB 2196256 A GB2196256 A GB 2196256A
Authority
GB
United Kingdom
Prior art keywords
syringe
safety lock
syringe pump
plunger
pump
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Withdrawn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
GB08615531A
Other versions
GB8615531D0 (en
Inventor
Dr Robin Bray
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08615531A priority Critical patent/GB2196256A/en
Publication of GB8615531D0 publication Critical patent/GB8615531D0/en
Publication of GB2196256A publication Critical patent/GB2196256A/en
Withdrawn legal-status Critical Current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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons

Abstract

A safety lock which consists of an adjustable mechanical barrier 1 which prevents accidental syringe pump overruns so avoiding large drug or fluid overdose. <IMAGE>

Description

SPECIFICATION Syringe pump safety lock This invention relates to a safety lock to be attached to a syringe pump.
A syringe pump is a well known device which is used to depress the plunger of a syringe mechanically to allow the delivery of a drug or fluid from the syringe at a constant rate over a period of time. It consists of a holder for the body of the syringe and a sliding part which is attached to the plunger of the syringe. The sliding part is driven in a linear fashion by a motor so as to produce a slow, but constant, depression of the syringe plunger. The rate of depression is pre-set to one of a variety of rates.
Syringe pumps are commonly used to deliver drugs to a patient and are frequently set up to provide a prolonged infusion of several hours which requires there to be a large amount of drug in the syringe. If the syringe pump develops a malfunction which increases the rate of depression of the syringe plunger an excessive amount of drug may be delivered to the patient.
According to the present invention there is provided a syringe pump safety lock comprising a rigid barrier adapted to be located at any one of a number of different positions in the path of the syringe plunger, or plunger depressor, to limit the movement of the plunger and thereby to prevent the plunger moving beyond a certain point.
The rigid barrier may comprise a bridge marker which, in use, is placed below the plunger so as to allow only a limited movement of the plunger. As the plunger is depressed by the pump in accordance with the pre-set rate, the barrier is moved down in stages relative to the body of the syringe by the supervising staff but only such as to allow a small amount of plunger movement at any one time. In the event of a pump overrun malfunction developing, the barrier will prevent depression of the plunger beyond the point at which it was last located so preventing a large overdose of drug.
Referring to the drawing, Fig. 1, the syringe pump safety lock consists of a rigid barrier (1) which prevents the downward movement of the syringe plunger (2) when the syringe plunger reaches the barrier. The barrier can be moved down the syringe pump body in various steps so as to allow the syringe plunger to be depressed as the infusion progresses.
There is a locking mechanism to hold the barrier support in place to prevent accidental dislodgement.

Claims (2)

1. A syringe pump safety lock which provides an adjustable rigid barrier to syringe plunger depression such as to prevent large over delivery of fluid or drug contained within the syringe due to mechanical malfunction of the pump.
2. A syringe pump safety lock as claimed in Claim 1 which prevents large over delivery of fluid or drug contained within the syringe due to mis-setting of the syringe pump controls.
GB08615531A 1986-06-25 1986-06-25 Syringe pump safety lock Withdrawn GB2196256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08615531A GB2196256A (en) 1986-06-25 1986-06-25 Syringe pump safety lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08615531A GB2196256A (en) 1986-06-25 1986-06-25 Syringe pump safety lock

Publications (2)

Publication Number Publication Date
GB8615531D0 GB8615531D0 (en) 1986-07-30
GB2196256A true GB2196256A (en) 1988-04-27

Family

ID=10600091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08615531A Withdrawn GB2196256A (en) 1986-06-25 1986-06-25 Syringe pump safety lock

Country Status (1)

Country Link
GB (1) GB2196256A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212823A (en) * 1967-03-17 1970-11-18 Jules Silver Syringes
GB1534229A (en) * 1977-06-16 1978-11-29 Silver J Syringe
GB1550308A (en) * 1978-03-17 1979-08-08 Plaspharm Ltd Syringes
GB2163490A (en) * 1984-07-26 1986-02-26 Mitsubishi Pencil Co Injection device
GB2180300A (en) * 1985-09-12 1987-03-25 Mitsubishi Pencil Co Injection device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212823A (en) * 1967-03-17 1970-11-18 Jules Silver Syringes
GB1534229A (en) * 1977-06-16 1978-11-29 Silver J Syringe
GB1550308A (en) * 1978-03-17 1979-08-08 Plaspharm Ltd Syringes
GB2163490A (en) * 1984-07-26 1986-02-26 Mitsubishi Pencil Co Injection device
GB2180300A (en) * 1985-09-12 1987-03-25 Mitsubishi Pencil Co Injection device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A 81-01104 *

Also Published As

Publication number Publication date
GB8615531D0 (en) 1986-07-30

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Legal Events

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