IL37368A - Closure device for a flexible tube - Google Patents

Description

Closure device for a flexible tube AMP For a blood operation blood plasma may be stored in a flexible bag from which a integrally with the extends for blood the donor to the bag and housing small samples of test purposes in short sections of the tube which have been closed off for this The tube should be closed so as to be hermetically The present concerns a clip for the closure of such flexible tubes or other flexible tubes that are required to be tightly The present invention is a closure clip for closing and sealing a flexible the clip a pair of generally metal closure devices each having a first a second and an Integral hinge at inner ends of the first and second arms connecting the arms two of the arms of the two closure devices bein connected by a the first and second arms of each closure device being to close together around flatten and seal a section of the each first having a tab on its outer end and each second arm having a recess in its outer en for receiving the tab therein whe the arms are closed around the section of the each tab being adapted to be bent under a portion of the corresponding second arm to secure the arms in closed engagement round the the and second arms of each closure device having an inwardly directed ridge on each inside surface to tightly engage the For a better understanding of the inventio will now be b way of to the accompanying Figure 1 is a perspective view of a closure clip in 7609 only part of is Figure 2 is a view taken on the lines of Figure Figure 3 is a side elevational view of the clip of Figure when closed about the and Figure 4 is side elevational view partly in section a modified clip shown in an open ft closure clip comprises a of resilient identical closure devices 30 and 32 which are in one om a sheet of bendable metal for example aluminium and which are connected together by a stra Each of the two devices has a pair f arms 36 and 38 connected by a hinge portion the hinge axes of the two devices being in The stra 34 extends between the two arms The free end o each 36 terminates in a tab 42 extending normally of the arm and centrally its Each arm 38 terminates a recess 44 ope in a direction away from the hinge portion for receiving the 42 of the arm The inner surfaces 48 of each device 30 and 32 have an inwardly projecting rib 46 extending from the 42 to the recess centrally of its the inner surface of each device being otherwise since rib 46 of each device extends from the tab 42 to the recess 44 has the effect of strengthening the device substantially throughout its If the ribs of the arms 36 and 38 may be offset from on another laterally of the In a tube is inserted between the arms 36 7609 of the more tightly compressed between the ribs as shown in Figure In the closed position of the the tabs 42 extend through the recesses 44 so as to project beyond the arms The projecting ends of the tabs 42 are then bent as shown in Figure 3 to lie against the outer surfaces of the arms The may be divided into segments and S2 as indicated in Figure 2 by the use of closure subsequently to the tube being The segments can be detached from one another by severing the strap 34 connecting the devices 30 and 32 and the contents of one of the segments that has been or The tube can be divided into more than two segments by using a plurality of This embodiment is of particular use where the tube contains blood since a quantity of the plasma can be used or tested at a time by detaching a whilst the remainder of the tube continues to be As show in Figure the clip may be coated with a plastics material 52 by conventional plastics coating techniques for example by spraying or by means of a fluidlsed bed of insulating According to the fluidlsed bed method of insertion a blank for producing the clip is heated by of an electrostatic and simultaneously dipped a bed of insulating The plastics coating will serve to cover any sharp edges there may be on the clip and will also add to its sealing insufficientOCRQuality

Claims (3)

37968/2 7609

1. A closure cli for closing and sealing a flexible tube, the clip comprising a pair of generally V-shaped metal closure devices each having a first arm, a second arm and an integral hinge at inner ends of the first and second arms connecting the arms together, two of the arms of the two closure devices being interconnected by a strap, the first and second arms of each closure device being adapted to close together around and flatten and seal a section of the tube, each first arm having a tab on its outer end and each second arm having a recess in its outer end or receiving the tab therein when the arms are closed . around the sectio of the tube, each tab being adapted to be bent under a portion of th corresponding second arm to secure the arms in' closed engagement round the tube, the first and second arms of each closure device having an Inwardly directed ridge on each inside surface to tightly engage the tube.

2. A clip as claimed in claim 1, in which the arms which are interconnected by the strap are coplanar and extend rom their hinges towards their outer ends in parallel spaced relation*

3. A closure clip substantially as described with reference to the accompanying drawings* For Ihe Applicants