CA1189830A - Container for delivery and/or collection of a liquid - Google Patents
Container for delivery and/or collection of a liquidInfo
- Publication number
- CA1189830A CA1189830A CA000405152A CA405152A CA1189830A CA 1189830 A CA1189830 A CA 1189830A CA 000405152 A CA000405152 A CA 000405152A CA 405152 A CA405152 A CA 405152A CA 1189830 A CA1189830 A CA 1189830A
- Authority
- CA
- Canada
- Prior art keywords
- container
- rear face
- face
- fluid medium
- front face
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
- A61J1/10—Bag-type containers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J2200/00—General characteristics or adaptations
- A61J2200/70—Device provided with specific sensor or indicating means
- A61J2200/76—Device provided with specific sensor or indicating means for fluid level
Landscapes
- Health & Medical Sciences (AREA)
- Hematology (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Packages (AREA)
Abstract
ABSTRACT
A container for delivery and/or collection of a fluid, in particular a liquid. The container comprises an observation marking which is adapted so as to show up in accordance with variations in the fluid level in the container for rapid indication of the quantity of fluid present at any given instant of observa-tion.
The observation marking preferably comprises a first pat-tern arranged on one side of the container and a second pattern arranged on the other side of the container, the said first and second patterns being adapted so that by combined action with one another they give rise to a third clearly discer-nible pattern in a direction of observation from the said other side of the container on observation levels above the liquid level in the container.
The container is manufactured appropriately from a flexible material, for example plastics, in the shape of a bag with at least one inlet communicating with the interior of the bag.
As a result of this the material properties of the bag can be uti-lized for a clearer showing up of the third pattern , since the two sides of the bag will be sucked towards each other owing to the vacuum which is produced in the empty space above the falling liquid level .
A reading scale adapted to the quantity of enclosed liquid may be arranged, for example, in association with the observation marking , so that the observation marking can be made use of also as a means for facilitating the accurate reading of this scale in that the observation marking clearly indicates the intersection between the liquid level and the reading scale .
A container for delivery and/or collection of a fluid, in particular a liquid. The container comprises an observation marking which is adapted so as to show up in accordance with variations in the fluid level in the container for rapid indication of the quantity of fluid present at any given instant of observa-tion.
The observation marking preferably comprises a first pat-tern arranged on one side of the container and a second pattern arranged on the other side of the container, the said first and second patterns being adapted so that by combined action with one another they give rise to a third clearly discer-nible pattern in a direction of observation from the said other side of the container on observation levels above the liquid level in the container.
The container is manufactured appropriately from a flexible material, for example plastics, in the shape of a bag with at least one inlet communicating with the interior of the bag.
As a result of this the material properties of the bag can be uti-lized for a clearer showing up of the third pattern , since the two sides of the bag will be sucked towards each other owing to the vacuum which is produced in the empty space above the falling liquid level .
A reading scale adapted to the quantity of enclosed liquid may be arranged, for example, in association with the observation marking , so that the observation marking can be made use of also as a means for facilitating the accurate reading of this scale in that the observation marking clearly indicates the intersection between the liquid level and the reading scale .
Description
~189~33~
The present invention re~ates to a container for delivery and/or collection of a fluid, in particular a liquid.
Under conditions where a container is used, for example for the delivery of a liquid, it may be desirable or even necessary rapidly to obtain an indication of the quantity of liquid which at a given instant still remains in the container in order to make preparations for a possible replacement of the container or for topping it up with liquid before the container becomes completely empty. This may be particularly desirable for example in a hospital where often several patients may be lying at the same time attached to such containers, so that the prescribed supply of sometimes vital liquid to the patients can be maintained without break.
Similar needs occur also in other connections, for example in conjuncticn with analyses or measurements where such a container may be used for the supply of the required reagent solution.
In known containers for delivery and/or collection of a liquid the only way of obtaining knowledge of the quantity of liquid remaining in the container at a given instant fre-quently,consists in the direct observation of the liquid level in the container~
One disadvantage of such known containers, in par-ticular transparent plastic bags intended to contain or con-taining essentially colourless liquids, is that it is often ~ery difficult to discern the liquid level in the container other than at very close range. This renders particularly complicated and time-consuming therefore any superintending in cases where a number of such containers are to be observed simultaneously, for example in a hospital, as men-tioned above~
The present invention, therefore, provides a container ~g~33~
of the above-mentioned type where the liquid level present can be indicated rapidly and simply, regardless of whether the container is made of transparent materlal and contains clear or colou~less liquid.
In accordance with the invention there is provided a container comprising an observation marking which is especially adapted so as to show up clearly in accordance with variations in the level of the fluid present in the lQ container for a rapid indication of the quantity of fluid present at a given instant of observation.
According the present invention therefore there is provided a container for the delivery or collection of a fluid rnedium, said container being transparent and includ-ing a front face and a rear face with said fluid medium being disposed therebetween, said front and rear faces of said container each having an upper end and a lower end whereby~
the level of said fluid medium within said container varies between said upper end and said lower end during delivery or collection of said fluid medium, said container including rear face fluid level indicating means associated with said rear face of said container, said rear face fluid level in-dicating means comprising rear face indicia means disposed longitudinally along said rear face of said container from said upper end of said rear face to said lower end of said rear face whereby the observation of said rear face indicia means from said frontJ face of said container is obscured by the presence of said fluid medium between said front and rear 3a faces and wherein said rear face fluid level indicating means is substantially continuous from said upper end of said rear face to said lower end of said rear face so as to readily indicate the location of the level of said fluid medium within said container irrespective of the location of said level of said fluid medium in said container.
,J',, ~ 2 ~
In accordance with the invention a container is thus provided for deIivery and/or collection of a fluid, in particular a liquid which comprises an observation marking which is especially adapted so as to show up clearly in accordance with variations in the level of the fluid present in the container, for a rapid indication of the quantity of fluid present at a given instant of observation.
A simple observation marking on the container in accordance with the invention is achieved by a first pattern arranged on the back of the container, that is to say on the container side remote from the observer, so that it becomes readily discernible from the front of the container in time with the falling of the liquid level in the container.
Analogously it is of course so that the same pattern disappears in the dire_tion of observation in time with the rising of the liquid level, as the container is used for example for the collection of a liquid.
Such a first pattern on the back of the container can be particularly suitable in cases where the container is intended to contain or does contain a clear or substantially colourless liquid, whose optical refractive properties are such that this pattern is almost invisible from the front of the container on observation levels below the liquid level in the container, whilst showing up clearly on levels above this liquid level.
3Q In a preferred embodiment a second pattern is also provided on the front of the container in a straight line in front of the said -~ 2a -" .
3~
first pattern on the back of the container, these two patterns being adapted so that by combined action with one another they pro-vide a third clearly discernible pattern on observation levels above the liquid level in the container.
In accordance with a practical embodimen-t the said first pat-tern may consist, for example, of a vertical bar marking comprising for example transverse bars which show up or disappear respectively in the direction of observation from the front oF the container in time with the falling or rising respectively of the liquid level in the container. At each instant of observation the liquid level is thus indicated by the point of the bar marking where the same changes from being discernible ~above the liquid level) to becoming invisible (below the liquid level). Alternative1y this bar marking may be printed or stamped onto a separate narrow strip which is cemented or attached in some other manner to the back of the con-tainer.
In a preferred embodiment the said second pattern may also consist of a simi1ar bar marking printed or stamped onto the front of the container, for examp1e mirror-symmetrically transverse bars in respect of the bar marking on the back of the container, these two patterns together giving rise to a diamond pattern showing up in the direction o-F observation which can be observed easily even at a great distance from the container. The lastmentioned bar marking too may be printed onto a separate narrow strip which is cemented or attached in some other rnanner in a straight line in front of the strip on the back of the container.
In accordance with a second practical embodiment of the inven-tion the said first pattern may consist of a narrow strip with broad horizontal bars spaced equidistantly, the said second pattern 3o on the front of the container in this case preferably consisting of similar strip onto which are printed horizonta1 bars similarly spaced equidistant1y which is vertical1y disp1aced in re1ation to the strip on the back of the container so that the third pattern appears as a continuous 1ine in the direction of observation. In this example the liquid level is thus indicated by the point on the container where the continuous line changes into a broken line below 33~
the liquid level.
1~ accordance with a specially preferred embodiment the con-tainer in accordance with the invention is manufactured from a flexible material, for example plastics, as a result of which the material properties of the container may be utilized for the making evident of the observation marking. If for example the container is filled with liquid and used for delivery through an outlet provided in the container bottom, the front and the back o~ the container will thus be sucked towards each other owing to the vacuum which is produced in the container above the falling liquid level. In conse-quence the first and the second pattern will be pressed close to one another, so that the third pattern will show up even more clearly. Even in the event of the observation marking comprising only a first pattern arranged on the back of the container, this pattern will appear more clearly owing to the back and the front of the container being sucked towards one another above the falling liquid level, since any optical refractive phenomena will thereby be minimized.
The observation marking on the container in accordance with the invention i5 arranged preferably to show up in association with a reading scale provided on the container adapted to the quantity of liquid present. This has the advantage, among other thingst that the said observation marking may be ueilized as a means For facili-tating the accurate reading on this scale, since the observation marking clearly indicates the intersection between the liquid level and the reading scale.
The inVention will be described in the ~ollowing in more detai 1 wi th reference to the accompanying drawings, wherein:
F jg. 1 is a schematic view of a preferred container according to the i`nvention, F jgs. 2a~2c show examples of practical embodiments Gf an observation marking on the bag according to the inven-tin, and F jg, 3 is a section along line III-III in Fig. 1 for a schematic illustration of the function of the container shown in Pig. 1.
,~,,, ~9~
As can be seen in fig. 1 and fig. 3, the container in accor-dance with the invention is manufactured preferably from a flexible material, for example plastics, in the shape of a bag provided with at least one inlet 2 communicating with the interior of the bag. In the embodiment shown the bag 1 comprises a bar coding 4 in the form of transverse bars along a substantially vertical zone of the bag arranged on the one side 3 of the bag (corresponding to the side remote from the observer in connection with the use of the bag).
The bar marking 4 is preferably produced in connection with the manufacture of the bag by means of pattern printing or similar stamping directly onto the side 3 of the bag. Alternatively the bar marking 4 may be arranged on a separate narrow strip 5 (fig. 2a) which subsequently is cemented or attached in some other manner to the bag.
As indicated in fig. 1, the bag 1 preferably also comprises a similar bar marking 6 arranged on the other side 7 of the bag in the form of mirror-symmetrically transverse lines in respect of the lines of the bar marking 4 on the said one side 3 of the bag. These mirror-symmetrically transverse lines too may be produced in connec-tion with the manufacture of the bag by pattern printing or similar stamping directly onto the other side 7 oF the bag or they may be provided on a separate narrow strip 8 (fig. 2a) which subsequently is cemented or attached in some other manner onto the said other side 7 in a straight line in front of the bar marking on the said one side 3 of the bag.
By the combined action of these two bar markings 1~ and 6 a clear diamond pattern 9 is produced on observation levels above the liquid level indicated by a broken line 10 in fig. 1 in time with the falling of the liquid level 10 as liquid is discharged through the outlet 2. The diamond pattern 9 shows up par~icularly clearly owing to the two sides 3 and 7 of the bag being pressed close to one another above the liquid level 10 because of the vacuum which is produced in the empty space above the falling liquid level 10.
As made evident in fig. 1, the bag 1 may also comprise holes 11 and 12 arranged in the sealing zone t3 on top of the bag 1 for the suspension of the bag on corresponding suspension hooks (not shown) in connection with the use of the bag.
As can be seen in fig. 2a the bar marking 4 may be provided on a separate narrow strip 5, whilst the bar marking 6 may be pro-vided on a corresponding separate narrow strip 8 to be attached tothe two sides 3 and 7 respectively of the bag, as indicated in fig. 1.
In the example shown in fig. 2b the bar marking 4a may com-prise a narrow strip 5a patterned with broad horizontal bars spaced equidistantly to be attached to the one side 3 of the bag. In a corresponding manner the bar marking 6a may be provided on a simi-lar strip 8a printed with broad horizontal bars similarly spaced equidistantly to be attached to the other side 7 of the bag. In this case the two strips 5a and 8a are vertically displaced in re-lation to one another so that a third pattern 9a (at the bottom infig. 2b) appears in the form of a continuous line in the direction of observation on levels above the liquid level in the container indicated by the broken horizontal line 10a. In this example the iiquid level 10 is thus indicated by the points on the container where the continuous line 9a changes into a broken line below the liquid level.
In fig. 2c is shown a further example of an observation marking in accordance with the invention. In this example the observation marking only comprises one o-f the strips 5a and 8a shown in fig.
2b, for example the strip 4b with broad horizontal bars spaced equidistantly. The pattern 9b appearing above the liquid level lOb, indicated by a broken line in fig. 2c, in this example corres-ponds to the broad horizontal continuous lines on the strip 5b. In this example the liquid level lOb is indicated by the point on the strip 5b where the pattern 9b ceases to be visible in the direction of observation below the liquid level lOb.
As shown in fig. 1, the bag 1 preferably comprises a reading scale 14 adapted to the quantity of liquid present. The reading scale 14 is arranged in association with the observation marking 9, so that the observation marking clearly indicates the intersection between the liquid level 10 and the reading scale 14 in order to 383C~
facilitate the accurate reading of the arnount of liquid in the bag 1.
The container in accordance with the invention is intended for delivery and/or collection of a fluid, in particular a liquid under conditions where it may be desirable to obtain a rapid indication of the quantity of liquid which at a given instant still remains in the container.
The container is applicable especially in connection with medical treatment, for exarnple the supply of liquid to a patient who is connected to the container, where it is often necessary to obtain in good time an indication as to how much liquid still re-mains in the container at a given instant in order to make prepa-rations for a possible replacement of ~he container or for topping it up with more liquid before the container becomes completely empty.
The container may also be used in other connections, for example in conjunction with analyses or measurements where such a container may be used for the supply of the required reagent solu-tion.
The present invention re~ates to a container for delivery and/or collection of a fluid, in particular a liquid.
Under conditions where a container is used, for example for the delivery of a liquid, it may be desirable or even necessary rapidly to obtain an indication of the quantity of liquid which at a given instant still remains in the container in order to make preparations for a possible replacement of the container or for topping it up with liquid before the container becomes completely empty. This may be particularly desirable for example in a hospital where often several patients may be lying at the same time attached to such containers, so that the prescribed supply of sometimes vital liquid to the patients can be maintained without break.
Similar needs occur also in other connections, for example in conjuncticn with analyses or measurements where such a container may be used for the supply of the required reagent solution.
In known containers for delivery and/or collection of a liquid the only way of obtaining knowledge of the quantity of liquid remaining in the container at a given instant fre-quently,consists in the direct observation of the liquid level in the container~
One disadvantage of such known containers, in par-ticular transparent plastic bags intended to contain or con-taining essentially colourless liquids, is that it is often ~ery difficult to discern the liquid level in the container other than at very close range. This renders particularly complicated and time-consuming therefore any superintending in cases where a number of such containers are to be observed simultaneously, for example in a hospital, as men-tioned above~
The present invention, therefore, provides a container ~g~33~
of the above-mentioned type where the liquid level present can be indicated rapidly and simply, regardless of whether the container is made of transparent materlal and contains clear or colou~less liquid.
In accordance with the invention there is provided a container comprising an observation marking which is especially adapted so as to show up clearly in accordance with variations in the level of the fluid present in the lQ container for a rapid indication of the quantity of fluid present at a given instant of observation.
According the present invention therefore there is provided a container for the delivery or collection of a fluid rnedium, said container being transparent and includ-ing a front face and a rear face with said fluid medium being disposed therebetween, said front and rear faces of said container each having an upper end and a lower end whereby~
the level of said fluid medium within said container varies between said upper end and said lower end during delivery or collection of said fluid medium, said container including rear face fluid level indicating means associated with said rear face of said container, said rear face fluid level in-dicating means comprising rear face indicia means disposed longitudinally along said rear face of said container from said upper end of said rear face to said lower end of said rear face whereby the observation of said rear face indicia means from said frontJ face of said container is obscured by the presence of said fluid medium between said front and rear 3a faces and wherein said rear face fluid level indicating means is substantially continuous from said upper end of said rear face to said lower end of said rear face so as to readily indicate the location of the level of said fluid medium within said container irrespective of the location of said level of said fluid medium in said container.
,J',, ~ 2 ~
In accordance with the invention a container is thus provided for deIivery and/or collection of a fluid, in particular a liquid which comprises an observation marking which is especially adapted so as to show up clearly in accordance with variations in the level of the fluid present in the container, for a rapid indication of the quantity of fluid present at a given instant of observation.
A simple observation marking on the container in accordance with the invention is achieved by a first pattern arranged on the back of the container, that is to say on the container side remote from the observer, so that it becomes readily discernible from the front of the container in time with the falling of the liquid level in the container.
Analogously it is of course so that the same pattern disappears in the dire_tion of observation in time with the rising of the liquid level, as the container is used for example for the collection of a liquid.
Such a first pattern on the back of the container can be particularly suitable in cases where the container is intended to contain or does contain a clear or substantially colourless liquid, whose optical refractive properties are such that this pattern is almost invisible from the front of the container on observation levels below the liquid level in the container, whilst showing up clearly on levels above this liquid level.
3Q In a preferred embodiment a second pattern is also provided on the front of the container in a straight line in front of the said -~ 2a -" .
3~
first pattern on the back of the container, these two patterns being adapted so that by combined action with one another they pro-vide a third clearly discernible pattern on observation levels above the liquid level in the container.
In accordance with a practical embodimen-t the said first pat-tern may consist, for example, of a vertical bar marking comprising for example transverse bars which show up or disappear respectively in the direction of observation from the front oF the container in time with the falling or rising respectively of the liquid level in the container. At each instant of observation the liquid level is thus indicated by the point of the bar marking where the same changes from being discernible ~above the liquid level) to becoming invisible (below the liquid level). Alternative1y this bar marking may be printed or stamped onto a separate narrow strip which is cemented or attached in some other manner to the back of the con-tainer.
In a preferred embodiment the said second pattern may also consist of a simi1ar bar marking printed or stamped onto the front of the container, for examp1e mirror-symmetrically transverse bars in respect of the bar marking on the back of the container, these two patterns together giving rise to a diamond pattern showing up in the direction o-F observation which can be observed easily even at a great distance from the container. The lastmentioned bar marking too may be printed onto a separate narrow strip which is cemented or attached in some other rnanner in a straight line in front of the strip on the back of the container.
In accordance with a second practical embodiment of the inven-tion the said first pattern may consist of a narrow strip with broad horizontal bars spaced equidistantly, the said second pattern 3o on the front of the container in this case preferably consisting of similar strip onto which are printed horizonta1 bars similarly spaced equidistant1y which is vertical1y disp1aced in re1ation to the strip on the back of the container so that the third pattern appears as a continuous 1ine in the direction of observation. In this example the liquid level is thus indicated by the point on the container where the continuous line changes into a broken line below 33~
the liquid level.
1~ accordance with a specially preferred embodiment the con-tainer in accordance with the invention is manufactured from a flexible material, for example plastics, as a result of which the material properties of the container may be utilized for the making evident of the observation marking. If for example the container is filled with liquid and used for delivery through an outlet provided in the container bottom, the front and the back o~ the container will thus be sucked towards each other owing to the vacuum which is produced in the container above the falling liquid level. In conse-quence the first and the second pattern will be pressed close to one another, so that the third pattern will show up even more clearly. Even in the event of the observation marking comprising only a first pattern arranged on the back of the container, this pattern will appear more clearly owing to the back and the front of the container being sucked towards one another above the falling liquid level, since any optical refractive phenomena will thereby be minimized.
The observation marking on the container in accordance with the invention i5 arranged preferably to show up in association with a reading scale provided on the container adapted to the quantity of liquid present. This has the advantage, among other thingst that the said observation marking may be ueilized as a means For facili-tating the accurate reading on this scale, since the observation marking clearly indicates the intersection between the liquid level and the reading scale.
The inVention will be described in the ~ollowing in more detai 1 wi th reference to the accompanying drawings, wherein:
F jg. 1 is a schematic view of a preferred container according to the i`nvention, F jgs. 2a~2c show examples of practical embodiments Gf an observation marking on the bag according to the inven-tin, and F jg, 3 is a section along line III-III in Fig. 1 for a schematic illustration of the function of the container shown in Pig. 1.
,~,,, ~9~
As can be seen in fig. 1 and fig. 3, the container in accor-dance with the invention is manufactured preferably from a flexible material, for example plastics, in the shape of a bag provided with at least one inlet 2 communicating with the interior of the bag. In the embodiment shown the bag 1 comprises a bar coding 4 in the form of transverse bars along a substantially vertical zone of the bag arranged on the one side 3 of the bag (corresponding to the side remote from the observer in connection with the use of the bag).
The bar marking 4 is preferably produced in connection with the manufacture of the bag by means of pattern printing or similar stamping directly onto the side 3 of the bag. Alternatively the bar marking 4 may be arranged on a separate narrow strip 5 (fig. 2a) which subsequently is cemented or attached in some other manner to the bag.
As indicated in fig. 1, the bag 1 preferably also comprises a similar bar marking 6 arranged on the other side 7 of the bag in the form of mirror-symmetrically transverse lines in respect of the lines of the bar marking 4 on the said one side 3 of the bag. These mirror-symmetrically transverse lines too may be produced in connec-tion with the manufacture of the bag by pattern printing or similar stamping directly onto the other side 7 oF the bag or they may be provided on a separate narrow strip 8 (fig. 2a) which subsequently is cemented or attached in some other manner onto the said other side 7 in a straight line in front of the bar marking on the said one side 3 of the bag.
By the combined action of these two bar markings 1~ and 6 a clear diamond pattern 9 is produced on observation levels above the liquid level indicated by a broken line 10 in fig. 1 in time with the falling of the liquid level 10 as liquid is discharged through the outlet 2. The diamond pattern 9 shows up par~icularly clearly owing to the two sides 3 and 7 of the bag being pressed close to one another above the liquid level 10 because of the vacuum which is produced in the empty space above the falling liquid level 10.
As made evident in fig. 1, the bag 1 may also comprise holes 11 and 12 arranged in the sealing zone t3 on top of the bag 1 for the suspension of the bag on corresponding suspension hooks (not shown) in connection with the use of the bag.
As can be seen in fig. 2a the bar marking 4 may be provided on a separate narrow strip 5, whilst the bar marking 6 may be pro-vided on a corresponding separate narrow strip 8 to be attached tothe two sides 3 and 7 respectively of the bag, as indicated in fig. 1.
In the example shown in fig. 2b the bar marking 4a may com-prise a narrow strip 5a patterned with broad horizontal bars spaced equidistantly to be attached to the one side 3 of the bag. In a corresponding manner the bar marking 6a may be provided on a simi-lar strip 8a printed with broad horizontal bars similarly spaced equidistantly to be attached to the other side 7 of the bag. In this case the two strips 5a and 8a are vertically displaced in re-lation to one another so that a third pattern 9a (at the bottom infig. 2b) appears in the form of a continuous line in the direction of observation on levels above the liquid level in the container indicated by the broken horizontal line 10a. In this example the iiquid level 10 is thus indicated by the points on the container where the continuous line 9a changes into a broken line below the liquid level.
In fig. 2c is shown a further example of an observation marking in accordance with the invention. In this example the observation marking only comprises one o-f the strips 5a and 8a shown in fig.
2b, for example the strip 4b with broad horizontal bars spaced equidistantly. The pattern 9b appearing above the liquid level lOb, indicated by a broken line in fig. 2c, in this example corres-ponds to the broad horizontal continuous lines on the strip 5b. In this example the liquid level lOb is indicated by the point on the strip 5b where the pattern 9b ceases to be visible in the direction of observation below the liquid level lOb.
As shown in fig. 1, the bag 1 preferably comprises a reading scale 14 adapted to the quantity of liquid present. The reading scale 14 is arranged in association with the observation marking 9, so that the observation marking clearly indicates the intersection between the liquid level 10 and the reading scale 14 in order to 383C~
facilitate the accurate reading of the arnount of liquid in the bag 1.
The container in accordance with the invention is intended for delivery and/or collection of a fluid, in particular a liquid under conditions where it may be desirable to obtain a rapid indication of the quantity of liquid which at a given instant still remains in the container.
The container is applicable especially in connection with medical treatment, for exarnple the supply of liquid to a patient who is connected to the container, where it is often necessary to obtain in good time an indication as to how much liquid still re-mains in the container at a given instant in order to make prepa-rations for a possible replacement of ~he container or for topping it up with more liquid before the container becomes completely empty.
The container may also be used in other connections, for example in conjunction with analyses or measurements where such a container may be used for the supply of the required reagent solu-tion.
Claims (13)
1. A container for the delivery or collection of a fluid medium, said container being transparent and including a front face and a rear face with said fluid medium being disposed therebetween, said front and rear faces of said container each having an upper end and a lower end whereby the level of said fluid medium within said container varies between said upper end and said lower end during delivery or collection of said fluid medium, said container including rear face fluid level indicating means associated with said rear face of said container, said rear face fluid level indicating means comprising rear face indicia means disposed longitu-dinally along said rear face of said container from said upper end of said rear face to said lower end of said rear face whereby the observation of said rear face indicia means from said front face of said container is obscured by the presence of said fluid medium between said front and rear faces and wherein said rear face fluid level indicating means is substantially continuous from said upper end of said rear face to said lower end of said rear face so as to readily indicate the location of the level of said fluid medium within said container irrespective of the location of said level of said fluid medium in said container.
2. The container of claim 1, wherein said rear face indicia means includes a predetermined repeating pattern thereof.
3. The container of claim 2, wherein said rear face indicia means comprises strip means affixed to the sur-face of said rear face of said container with said predeter-mined repeating pattern applied to said strip means.
4. The container of claim 1, including front face fluid level indicating means comprising front face indicia means disposed longitudinally along said front face of said container from said upper end of said front face to said lower end of said front face at a location corresponding to that of said rear face indicia means, said rear face indicia means including a first predetermined pattern thereon, and said front face indicia means being substantially continuous from said upper end of said front face to said lower end of said front face and including a second predetermined pattern thereon, whereby the combination of said rear face indicia means and said front face indicia means provide a readily observable third predetermined pattern at locations above said location of said level of said fluid medium within said container.
5. The container of claim 4, wherein said rear face indicia means and said front face indicia means comprise strip means affixed to the surfaces of said rear and front faces of said container, with said first and second predetermin-ed patterns being applied to said strip means.
6. The container of claim 1 or 4 wherein said container comprises a flexible bag including inlet means for said fluid medium.
7. The container of claim 1 or 4, wherein said container comprises a flexible bag including inlet means for said fluid medium said flexible bag comprising plastic.
8. The container of claim 1 or 4, including scale means applied to one of said rear and front faces of said container and juxtaposed with said rear face indicia means whereby the quantity of said fluid medium in said container may be determined from said location of said fluid level therein.
9. The container of claim 1, wherein said front and rear faces of said container are joined by sealing zones at the upper and lower longitudinal ends thereof, and including aperture means in said sealing zone corresponding to said upper longitudinal end of said container so as to permit said container to be suspended therefrom.
10. The container of claim 9, wherein one of said sealing zones corresponding to said upper and lower longi-tudinal ends of said container includes inlet means for said fluid medium.
11. The container of claim 10, wherein said sealing zone corresponding to said lower longitudinal end of said container includes said inlet means.
12. A container for the delivery or collection of a fluid medium, said container being transparent and including a front face and a rear face with said fluid medium being disposed therebetween, said front and rear faces of said container each having an upper end and a lower end whereby the level of said fluid medium within said container varies between said upper end and said lower end during delivery or collection of said fluid medium, said container including rear face fluid level indicating means associated with said rear face of said container, said rear face fluid level in-dicating means comprising rear face indicia means disposed longitudinally along said rear face of said container from said upper end of said rear face to said lower end of said rear face whereby the observation of said rear face indicia means from said front face of said container is obscured by the presence of said fluid medium between said front and rear faces and wherein said rear face fluid level indicating means is substantially continuous from said upper end of said rear face to said lower end of said rear face so as to readily indicate the location of the level of said fluid medium within said container irrespective of the location of said level of said fluid medium in said container and including front face fluid level indicating means comprising front face indicia means disposed longitudinally along said front face of said container from said upper end of said front face to said lower end of said front face at a location corresponding to that of said rear face indicia means, said rear face indicia means including a first predetermined pattern thereon, and said front face indicia means being substantially continuous from said upper end of said front face to said lower end of said front face and including a second predetermined pattern thereon, whereby the combination of said rear face indicia means and said front face indicia means provide a readily observable third predetermined pattern at locations above said location of said level of said fluid medium within said container, the front and rear face fluid level indicating means being super-imposed upon one another upon the front and rear faces becoming substantially contiguous.
13. A container for the delivery or collection of a fluid medium, said container being transparent and including a front face and a rear face with said fluid medium being disposed therebetween, said front and rear faces of said con-tainer each having an upper end and a lower end whereby the level of said fluid medium within said container varies between said upper end and said lower end during delivery or collec-tion of said fluid medium, said container including rear face fluid level indicating means associated with said rear face of said container, said rear face fluid level indicating means comprising rear face indicia means disposed longitudinally along said rear face of said container from said upper end of said rear face to said lower end of said rear face where-by the observation of said rear face indicia means from said front face of said container is obscured by the presence of said fluid medium between said front and rear faces and wherein said rear face fluid level indicating means is substantially continuous from said upper end of said rear face to said lower end of said rear face so as to readily indicate the location of the level of said fluid medium within said container irrespective of the location of said level of said fluid medium in said container, including front face fluid level indicating means comprising front face indicia means disposed longitudinally along said front face of said container from said upper end of said front face to said lower end of said front face at a location corresponding to that of said rear face indicia means, said rear face indicia means including a first predetermined pattern thereon, and said front face indicia means being continuous from said upper end of said front face to said lower end of said front face and including a second predetermined pattern thereon, whereby the combination of said rear face indicia means and said front face indicia means provide a readily observable reversible third pre-determined pattern at locations above said location of said level of said fluid medium within said container, the front and rear face fluid level indicating means being super-imposed upon one another upon the front and rear faces becoming substantially contiguous.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8104147A SE442449B (en) | 1981-07-03 | 1981-07-03 | CONTAINER FOR DELIVERING AND / OR COLLECTING A FLUID, SPECIFICALLY A LIQUID |
| CH8104147-7 | 1981-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1189830A true CA1189830A (en) | 1985-07-02 |
Family
ID=20344194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000405152A Expired CA1189830A (en) | 1981-07-03 | 1982-06-14 | Container for delivery and/or collection of a liquid |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0069246B1 (en) |
| JP (1) | JPS5810615A (en) |
| AR (1) | AR228503A1 (en) |
| AT (1) | ATE12084T1 (en) |
| AU (1) | AU8555882A (en) |
| BR (1) | BR8203835A (en) |
| CA (1) | CA1189830A (en) |
| DE (1) | DE3262537D1 (en) |
| DK (1) | DK282082A (en) |
| SE (1) | SE442449B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0440043A1 (en) * | 1990-02-02 | 1991-08-07 | Fresenius AG | Bag |
| DE4436349A1 (en) * | 1994-09-19 | 1996-03-21 | Agnes Keddad | Fun figure used as liquid level indicator for children |
| DE102006061184A1 (en) * | 2006-12-22 | 2008-06-26 | Fresenius Medical Care Deutschland Gmbh | Method of priming a blood tubing set |
| DE102007014622A1 (en) | 2007-03-23 | 2008-09-25 | Nordzucker Ag | Packaging container, for loose powders or liquids, has a beaker-shaped lid with a transparent window and printed scale to measure the poured product |
| DE102018116797A1 (en) * | 2018-07-11 | 2020-01-16 | Fresenius Medical Care Deutschland Gmbh | Bags for medical purposes and method for detecting the level of bags for medical purposes |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3589422A (en) * | 1969-03-17 | 1971-06-29 | Baxter Laboratories Inc | Sealed bag for liquids |
| US4049033A (en) * | 1974-11-21 | 1977-09-20 | Baxter Travenol Laboratories, Inc. | Molded collapsible solution container |
| US4178976A (en) * | 1978-02-10 | 1979-12-18 | Automatic Liquid Packaging, Inc. | Unitary, hermetically-sealed but pierceable dispensing container |
| GB1598777A (en) * | 1978-05-08 | 1981-09-23 | Pennwalt Corp | Aseptic storage container |
| GB2080247A (en) * | 1980-07-25 | 1982-02-03 | Craig Med Prod Ltd | Bag with hanger |
-
1981
- 1981-07-03 SE SE8104147A patent/SE442449B/en not_active IP Right Cessation
-
1982
- 1982-06-14 CA CA000405152A patent/CA1189830A/en not_active Expired
- 1982-06-14 EP EP82105175A patent/EP0069246B1/en not_active Expired
- 1982-06-14 DE DE8282105175T patent/DE3262537D1/en not_active Expired
- 1982-06-14 AT AT82105175T patent/ATE12084T1/en not_active IP Right Cessation
- 1982-06-23 DK DK282082A patent/DK282082A/en not_active Application Discontinuation
- 1982-06-30 BR BR8203835A patent/BR8203835A/en unknown
- 1982-07-02 AU AU85558/82A patent/AU8555882A/en not_active Abandoned
- 1982-07-02 AR AR289876A patent/AR228503A1/en active
- 1982-07-02 JP JP57115282A patent/JPS5810615A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0069246A3 (en) | 1983-03-16 |
| AU8555882A (en) | 1983-01-06 |
| AR228503A1 (en) | 1983-03-15 |
| BR8203835A (en) | 1983-06-28 |
| JPS5810615A (en) | 1983-01-21 |
| SE442449B (en) | 1985-12-23 |
| DK282082A (en) | 1983-01-04 |
| ATE12084T1 (en) | 1985-03-15 |
| SE8104147L (en) | 1983-01-04 |
| DE3262537D1 (en) | 1985-04-18 |
| EP0069246B1 (en) | 1985-03-13 |
| EP0069246A2 (en) | 1983-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |