GB2470575A

GB2470575A - Suction Syringe

Info

Publication number: GB2470575A
Application number: GB0909081A
Authority: GB
Inventors: Galal Elhoussein Elsayed Farag
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-27
Filing date: 2009-05-27
Publication date: 2010-12-01
Also published as: GB0909081D0

Abstract

A suction syringe comprising a barrel (or body) 1 with side slits 3 extending for the middle of the body of the syringe to the base end of the syringe, which is a closed end forming a thumb pad 7. The suction syringe has a rubber seal at its nozzle end 4 and a bar 5 passing through towards the middle of the syringe. The sides of the bar 6 pass through the slits. By maintaining pressure on the side arms of the plunger 6 using the index and middle fingers, in combination with the pushing action exerted on the thumb pad (base end) 7 of the barrel 1 using the thumb, a suction mechanism within the syringe can be created with only one hand. The Suction Syringe is a disposable plastic syringe that allows a one hand suction technique to be used thus allowing the other hand of the operator to be free.

Description

FREE HAND SUCTION SYRINGE (FHSS)

Description

This invention relates to a suction syringe.

Suction aspiration procedures are very common in many branches of medicine e.g. intravenous line insertion in anaesthesia, amniocentesis in obstetrics, fine needle aspiration in surgery, taking blood samples in general practice and laboratories... etc. However the use of conventional syringes can lead to a number of difficulties including unstable grip and the need to use both hands in order to control the suction procedure.

The Free Hand Suction Syringe is a disposable plastic syringe that would allow a one hand suction technique to be used thus allowing the other hand of the operator to be free and therefore could be in another task within the same procedure e.g. holding an ultrasound probe or an endoscope or palpating the area to be aspirated.

The invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1 shows the Free Hand Suction Syringe with its three components. This view is from one side.

The view from the other side is the same. The product is cylindrical.

Figure 2 shows the starting position of the syringe before Suction.

Figure 3 shows the final position of the syringe after suction.

In Figure 1 the FHSS includes * The barrel (body of the syringe) The outermost component made of plastic and is cylindrical in shape and can be made in different lengths and sizes depending on the required volume (1) Opened at one end with a 1 cm long standard needle nozzle ( nozzle end) (2) Completely closed at the other end (base end) with a circular plastic pad (thumb pad)(7) A 3-5 mm wide slit extends one each side of the barrel from about midway its length to about 3-5 mm from the top, or may extend to and including the base end for manufacturing purposes in order to ease the insertion of the plunger with its bar, forming the side arms, into the slits at the base end of the barrel (6) The outer surface of the barrel shows volume markings as with any other standard syringe.

* The plunger An inner component,. It is a plastic stem with a bar going through its base end forming side arms. The bar forming the side arms is made of plastic or metal or plastic with a metal component within its core (5)

Description continued

The stem comes in different lengths and sizes depending on the volume of the syringe. It has a bar made of plastic, metal or both passing though and near its base end (5) The nozzle end of the plunger is connected to the rubber seal (5) The base end of the plunger extends to about the middle of the barrel and has side arms passing through its substance as a complete bar and through the side slits on each side (5) The side arms originate from near the end of the plunger and extend outside the barrel through the side slits, and for about 1.5 -2 cm on each side (6) * The rubber seal: a standard black rubber seal connected to the nozzle end of the plunger as seen in standard plastic syringes. On full withdrawal of the plunger towards the base end of the barrel during the suction procedure, the rubber seal stops 5 mm from the nozzle end of the side slits (4) Figure 2 shows an alternative view when the product in Figure 1 is rotated 90 degrees. The slits (3) extend from the starting position of the side arms to the top of the syringe at the base end.

Figure 3 shows a further demonstration with the syringe in action. Now the side arms are at the base end of the syringe following suction with the rubber seal stopping about 5 mm from the nozzle end of the slits.

Claims

FREE HAND SUCTION SYRINGE (FHSS) Claims 1. A suction syringe comprising the barrel (body of the syringe) with side slits which extends from the middle of the body of the syringe to the base end of the syringe which is a closed end (thumb pad). The size, length and volume of the syringe can be varied.
2. A suction syringe according to claim 1, in which the plunger has a rubber seal at its nozzle end and a bar passing through near its other end about the middle of the syringe length. The sides of the bar extend through the slits on each side to a distance of about 2 cm. forming the side arms.
3. A suction syringe according to claim 1 in which the suction mechanism is provided by maintaining pressure on the side arms of the plunger using the index and middle fingers from underneath ( at the nozzle side of the syringe) with pushing action exerted on the thumb pad (base end) of the barrel using the thumb, a suction mechanism can be created with only one hand. The movement is one which mimics injection. However the actual effect is suction.