Valves and valve actuation – Tube compressors – Pivoting tube contacting element
Patent
1987-06-29
1988-04-12
Chambers, A. Michael
Valves and valve actuation
Tube compressors
Pivoting tube contacting element
251 4, 604 34, A61F 544, F16L 5519, F16K 706
Patent
active
047369256
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a hose clamp to be positioned on an outlet hose member inserted at the bottom of a liquid collection bag between welded wall portions of the bag, comprising two clamp parts that are hingedly connected at one end and one of which is provided with a jaw part that is eccentric about the hinge axis and, in the closing position of the clamp, squeezes the hose member against a stationary jaw part on the second clamp portion, the clamp parts having releasable locking means active in the closing position.
Such hose clamps are mainly used in liquid collection bags for medical or hygienic purposes, e.g. urine collection bags for incontinence equipments.
For emptying such bags it is known to make use of a rigid socket accommodating a valve as well as a resilient hose member, the latter being considerably more suitable with regard to the comfort of the user.
With respect to the closing member of such an outlet hose member it is a primary demand that it ensures in its closing position a completely leakage-free squeezing of the hose member. Moreover, the closing member should as far as possible be secured against unintentional opening and simultaneously it must not be too difficult to open when emptying is to take place.
In known urine collection bags hose clamps of a conventional design mounted on the part of the outlet hose member extending outside the bag are used. As the hose clamp is made from a rigid material it is frequently irritating to the user and thus does not fulfil the wish to better comfort which is the mere reason for applying a flexible hose member. Such inconveniences apply in particular, if the clamp extends transversely of the longitudinal direction of the hose member in order to keep the hose member proper as short as possible.
The fact that the clamp parts are located freely outside the bag proper makes it further difficult to combine the actually contradictory demands on a reliable locking in the closing position and on a handy opening ability.
It is the object of the invention to provide a hose clamp that does not suffer from these functional drawbacks of known closing means.
To accomplish this, the hose clamp according to the invention is characterized in that said second part has a substantially U-shaped cross-section corresponding to the outer diameter of the hose member and having lateral portions in which opposite longitudinal slots for receiving said welded wall portions of the bag are provided, said slots extending from the end opposite the hinge connection through such a length of the clamp that only a slight portion thereof around the jaw parts projects outside the edge of said wall portions.
The design of one of the clamp portions as a U-shaped member which on the major part of its length by means of said slots is pushed onto the welded bottom walls of the bag so that only a very small portion of the clamp projects outside the bag, entails a considerably improved comfort to the user.
Moreover, since in the closing position also said one clamp part superposes the bag in engagement with the U-shaped part, the clamp is considerably better protected against, i.e. less accessible to unintentional opening.
The invention will now be explained in detail by means of an embodiment illustrated in the drawings, in which
FIG. 1 shows a hose clamp according to the invention mounted on a urine collection bag,
FIGS. 2 and 3 are perspective views of the hose clamp in open and closed positions, respectively,
FIG. 4 is a longitudinal view, and
FIG. 5 illustrates the hose clamp from one end.
The urine collection bag shown in FIG. 1 is of a conventional design with resilient walls made from plastic material, said walls being welded together in a liquidtight manner at lateral portions 2 and 3, a bottom portion 4 and a top portion 5, an outlet hose member 6 and an inlet hose member 7, respectively, being inserted, however, between the welded bag walls at the bottom portion 4 and the top portion 5, of which the inlet hose member may for instance be connected with an external catheter o
REFERENCES:
patent: 3942228 (1976-03-01), Buchman et al.
patent: 4051578 (1977-10-01), Manschot et al.
patent: 4643389 (1987-02-01), Elson et al.
Kamstrup-Larsen Jorgen
Morris Michael
Chambers A. Michael
Coloplast A/S
Fox John C.
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