CA2064450A1 - Device for taking aseptic samples of products - Google Patents
Device for taking aseptic samples of productsInfo
- Publication number
- CA2064450A1 CA2064450A1 CA002064450A CA2064450A CA2064450A1 CA 2064450 A1 CA2064450 A1 CA 2064450A1 CA 002064450 A CA002064450 A CA 002064450A CA 2064450 A CA2064450 A CA 2064450A CA 2064450 A1 CA2064450 A1 CA 2064450A1
- Authority
- CA
- Canada
- Prior art keywords
- valve
- products
- enclosure
- inlet pipe
- steam
- 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.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/205—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a valve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N2035/00178—Special arrangements of analysers
- G01N2035/00277—Special precautions to avoid contamination (e.g. enclosures, glove- boxes, sealed sample carriers, disposal of contaminated material)
Abstract
ABSTRACT:
A device for taking aseptic samples of products The device comprises a valve (4) for drawing off products, an inlet pipe (20) for steam and sterile air and a product sampling pipe (23), in which the draw-off valve comprises a closure cone (7) which, in the closed position, rests on a valve seat (6), the plane of contact of the cone with the seat being situated substantially level with the surface of the enclosure, the steam inlet pipe opens directly into the head space of the valve and the product sampling pipe is in the extension of the steam inlet pipe.
Fig.1
A device for taking aseptic samples of products The device comprises a valve (4) for drawing off products, an inlet pipe (20) for steam and sterile air and a product sampling pipe (23), in which the draw-off valve comprises a closure cone (7) which, in the closed position, rests on a valve seat (6), the plane of contact of the cone with the seat being situated substantially level with the surface of the enclosure, the steam inlet pipe opens directly into the head space of the valve and the product sampling pipe is in the extension of the steam inlet pipe.
Fig.1
Description
2~6~50 This invention relates to a device for the aseptic sampling of products accommodated in an aseptic enclosure from that enclosure. The device in question is particular-ly intended for use in the field of foods, more especially for the sampling of fresh, refrigerated or long-life dairv products, or in the pharmaceutical field, for example for monitoring during the fillinq of flexible bags with prod-ucts for enteral or parenteral administration.
FR-PS 2 374 629 already describes an aseptic sampling device of the type in question. The disadvantage of this device is that the valve through which the product is drawn off forms between itself and the sampling enclosure a dead zone in which the products stagnate, creating a serious risk of bacterial growth. On the other hand, this device is complicated and difficult to operate and is not partic-ularly suitable for drawing off products containing solid pieces.
The object of the present invention is to obviate the disadvantages mentioned above by means of a simple device which is easy to use and which minimizes the risks of contamination.
The invention relates to a device for the aseptic sampling of products accommodated in an aseptic enclosure from that enclosure, comprising a valve for drawing off products, an inlet pipe for steam and sterile air and a product sampling pipe, in which the draw-off valve com-prises a closure cone which, in the closed position, rests on a valve seat, the plane of contact of the cone with tha seat being situated substantially level with the surface of the enclosure, the steam inlet pipe opens directly into the head space of the valve and the product sampling pipe is in the extension of the steam inlet pipe.
The enclosure from which the samples are taken may be both a pipe and a reservoir. Unlimited volumes of sterile products may be taken as samples. The device according to . ~ , , . ~ , ,, , ;,, 2 0 ~
the invention may be used both for viscous liquid products and even for products containing solid pieces.
The crucial feature of the invention is that the closure cone of the valve is substantially in the plane forming the surface of the enclosure. In this case, there is no residual product to stagnate so that, on the product side, there is virtually no risk of bacterial growth. On that side of the closure cone which is not in contact with the product in the closed position, i.e. in what is termed the head space in the present specification, the steam is directly introduced so that the head space can be steril-ized. The steam thus purges the entire zone from the head space to the product sampling pipe. In this way, the device can be repeatedly used and re-sterilized after each sampling.
The product to be sampled must be able to arrive under light pressure in the sampling bottle, above all if it contains solid pieces. To this end, the diameter of the valve seat is substantially equal to twice the diameter of the product sampling pipe.
To collect the product, a circular plate with a recess in which the upper edge of the bottle to be filled slides during sampling is provided at the end of the sampling ~ipe. The product may also be collected from a flexible pipe.
When the device is not in use, the circular plate is covered with a disc to keep the device as a whole sterile.
The device according to the invention and its mode of operation are described in more detail in the following with reference to the accompanying drawings, wherein:
Figure 1 is a partial section through the device according to the invention before sampling.
Figure 2 is a partial section through the same device during sampling.
An opening (2) is formed in the wall (1) of the , . ~ . , . .
... .
.
2~4~
enclosure from which the samples are to be taken. A draw-off valve (4) is welded in the opening (2) at (3). This valve comprises a valve body (5) with a valve seat (6) which is closed by a closure cone (7) provided with a seal (19). The cone (7) is integral with a guide rod (8) designed to slide in a part (9) fixed to the valve body (5) by a locking collar (10). The valve is sealed by a flex-ible membrane (11) held between the closure cone (7) and the rod (8) on the one hand and the valve body (5) and the part (9) on the other hand. The valve is opened and closed by a knob (12) fixed to a cylindrical sleeve (13) which is formed internally with a screwthread (14) engaging in a corresponding screwthread (15) of the part (9). The sleeve (13) further comprises an annular protuberance (16) which bears against stops (17) (18) to allow displacement of the guide rod (8) when the knob (12) is rotated. The valve body (5) additionally comprises a pipe (20) for the intro-duction of steam through the valve (21) and sterile air through the valve (22) and a product sampling pipe (23).
This pipe opens onto a circular plate (24) closed by a disc (25) comprising a central bore (26) for the outlet of sterile air to guarantee good sterilization conditions.
The mode of operation of the device is as follows:
Before the product (27) is sampled, the head space (28) has to be sterilized. To this end, the valve (21) is opened and steam at 120C and under an excess pressure of approx. 1 bar is admitted for six minutes. The steam flows along the p~pe (23) to the bore (2~). The valve (21) is then closed and the valve (22) opened. Sterile air is admitted to cool the system. This air is allowed to flow for as long as a sample needs to be taken. Before samp-ling, the disc (25) is unscrewed and a sterile product recovery bottle (29) is placed in position (Fig. 2). The top of the bottle is engaged in the recess ~30) of the cir-cular plate ~24). With the valves (21) and (22) closed, , : ~ , :
20~50 the knob (12) of the draw-off valve is turned so that the cylindrical sleeve (13) is displaced and the closure cone (7) is removed from the valve seat (6). The product (27) flows in the direction of the arrows in Fig. 2 and is recovered in the bottle (29). When the bottle is full, the knob (12) is turned in the opposite direction and the closure cone is returned to the valve seat (6). The flexible membrane (11) provides for effective sealing of the draw-off valve (4) and for simple operation of the device according to the invention.
The bottle (29) is removed, the system is freed by rinsing from the condensed steam which has accumulated therein and is then resterilized with steam and sterile air is allowed to flow until the next sample needs to be taken.
: . . ~ ., .. ' .. :
FR-PS 2 374 629 already describes an aseptic sampling device of the type in question. The disadvantage of this device is that the valve through which the product is drawn off forms between itself and the sampling enclosure a dead zone in which the products stagnate, creating a serious risk of bacterial growth. On the other hand, this device is complicated and difficult to operate and is not partic-ularly suitable for drawing off products containing solid pieces.
The object of the present invention is to obviate the disadvantages mentioned above by means of a simple device which is easy to use and which minimizes the risks of contamination.
The invention relates to a device for the aseptic sampling of products accommodated in an aseptic enclosure from that enclosure, comprising a valve for drawing off products, an inlet pipe for steam and sterile air and a product sampling pipe, in which the draw-off valve com-prises a closure cone which, in the closed position, rests on a valve seat, the plane of contact of the cone with tha seat being situated substantially level with the surface of the enclosure, the steam inlet pipe opens directly into the head space of the valve and the product sampling pipe is in the extension of the steam inlet pipe.
The enclosure from which the samples are taken may be both a pipe and a reservoir. Unlimited volumes of sterile products may be taken as samples. The device according to . ~ , , . ~ , ,, , ;,, 2 0 ~
the invention may be used both for viscous liquid products and even for products containing solid pieces.
The crucial feature of the invention is that the closure cone of the valve is substantially in the plane forming the surface of the enclosure. In this case, there is no residual product to stagnate so that, on the product side, there is virtually no risk of bacterial growth. On that side of the closure cone which is not in contact with the product in the closed position, i.e. in what is termed the head space in the present specification, the steam is directly introduced so that the head space can be steril-ized. The steam thus purges the entire zone from the head space to the product sampling pipe. In this way, the device can be repeatedly used and re-sterilized after each sampling.
The product to be sampled must be able to arrive under light pressure in the sampling bottle, above all if it contains solid pieces. To this end, the diameter of the valve seat is substantially equal to twice the diameter of the product sampling pipe.
To collect the product, a circular plate with a recess in which the upper edge of the bottle to be filled slides during sampling is provided at the end of the sampling ~ipe. The product may also be collected from a flexible pipe.
When the device is not in use, the circular plate is covered with a disc to keep the device as a whole sterile.
The device according to the invention and its mode of operation are described in more detail in the following with reference to the accompanying drawings, wherein:
Figure 1 is a partial section through the device according to the invention before sampling.
Figure 2 is a partial section through the same device during sampling.
An opening (2) is formed in the wall (1) of the , . ~ . , . .
... .
.
2~4~
enclosure from which the samples are to be taken. A draw-off valve (4) is welded in the opening (2) at (3). This valve comprises a valve body (5) with a valve seat (6) which is closed by a closure cone (7) provided with a seal (19). The cone (7) is integral with a guide rod (8) designed to slide in a part (9) fixed to the valve body (5) by a locking collar (10). The valve is sealed by a flex-ible membrane (11) held between the closure cone (7) and the rod (8) on the one hand and the valve body (5) and the part (9) on the other hand. The valve is opened and closed by a knob (12) fixed to a cylindrical sleeve (13) which is formed internally with a screwthread (14) engaging in a corresponding screwthread (15) of the part (9). The sleeve (13) further comprises an annular protuberance (16) which bears against stops (17) (18) to allow displacement of the guide rod (8) when the knob (12) is rotated. The valve body (5) additionally comprises a pipe (20) for the intro-duction of steam through the valve (21) and sterile air through the valve (22) and a product sampling pipe (23).
This pipe opens onto a circular plate (24) closed by a disc (25) comprising a central bore (26) for the outlet of sterile air to guarantee good sterilization conditions.
The mode of operation of the device is as follows:
Before the product (27) is sampled, the head space (28) has to be sterilized. To this end, the valve (21) is opened and steam at 120C and under an excess pressure of approx. 1 bar is admitted for six minutes. The steam flows along the p~pe (23) to the bore (2~). The valve (21) is then closed and the valve (22) opened. Sterile air is admitted to cool the system. This air is allowed to flow for as long as a sample needs to be taken. Before samp-ling, the disc (25) is unscrewed and a sterile product recovery bottle (29) is placed in position (Fig. 2). The top of the bottle is engaged in the recess ~30) of the cir-cular plate ~24). With the valves (21) and (22) closed, , : ~ , :
20~50 the knob (12) of the draw-off valve is turned so that the cylindrical sleeve (13) is displaced and the closure cone (7) is removed from the valve seat (6). The product (27) flows in the direction of the arrows in Fig. 2 and is recovered in the bottle (29). When the bottle is full, the knob (12) is turned in the opposite direction and the closure cone is returned to the valve seat (6). The flexible membrane (11) provides for effective sealing of the draw-off valve (4) and for simple operation of the device according to the invention.
The bottle (29) is removed, the system is freed by rinsing from the condensed steam which has accumulated therein and is then resterilized with steam and sterile air is allowed to flow until the next sample needs to be taken.
: . . ~ ., .. ' .. :
Claims (4)
1. A device for the aseptic sampling of products accom-modated in an aseptic enclosure from that enclosure, comprising a valve for drawing off products, an inlet pipe for steam and sterile air and a product sampling pipe, characterized in that the draw-off valve comprises a closure cone which, in the closed position, rests on a valve seat, the plane of contact of the cone with the seat being situated substantially level with the surface of the enclosure, in that the steam inlet pipe opens directly into the head space of the valve and the product sampling pipe is in the extension of the steam inlet pipe.
2. A device as claimed in claim 1, characterized in that the diameter of the valve seat is substantially equal to twice the diameter of the product sampling pipe.
3. A device as claimed in claim 1 or 2, characterized in that the product sampling pipe is terminated by a circular plate formed with a recess to receive the upper edge of the bottle to be filled.
4. A device as claimed in claim 3, characterized in that the circular plate is closed by a disc when the device is not in use.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH121991A CH686053A5 (en) | 1991-04-24 | 1991-04-24 | Levy aseptic device for product samples. |
| CH1219/91-4 | 1991-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2064450A1 true CA2064450A1 (en) | 1992-10-25 |
Family
ID=4205281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002064450A Abandoned CA2064450A1 (en) | 1991-04-24 | 1992-03-30 | Device for taking aseptic samples of products |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0510355B1 (en) |
| JP (1) | JPH05118970A (en) |
| AT (1) | ATE118887T1 (en) |
| AU (1) | AU654172B2 (en) |
| CA (1) | CA2064450A1 (en) |
| CH (1) | CH686053A5 (en) |
| DE (1) | DE69201455T2 (en) |
| DK (1) | DK0510355T3 (en) |
| ES (1) | ES2069334T3 (en) |
| NZ (1) | NZ242174A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6821773B1 (en) | 1992-07-09 | 2004-11-23 | Nl Technologies, Ltd. | Drainable ferrule valve design |
| FR2752936B1 (en) * | 1996-09-02 | 1998-11-13 | Parron Pierre | SAMPLING TAP |
| US6491283B2 (en) * | 2000-03-09 | 2002-12-10 | Nl Technologies, Ltd. | Sanitary drain valve design |
| AU2003223744A1 (en) | 2002-04-26 | 2003-11-10 | Millipore Corporation | Disposable, sterile fluid transfer device |
| US7293477B2 (en) | 2003-12-23 | 2007-11-13 | Millipore Corporation | Disposable, pre-sterilized fluid receptacle sampling device |
| KR100809012B1 (en) * | 2006-09-01 | 2008-03-05 | 주식회사닛시 | Device for gathering and pouring specimen |
| SG153002A1 (en) | 2007-11-16 | 2009-06-29 | Millipore Corp | Fluid transfer device |
| DE102008019982B4 (en) * | 2008-04-21 | 2010-08-12 | Manfred Völker | Sample-taking valve |
| FR2940440B1 (en) | 2008-12-18 | 2010-12-24 | Millipore Corp | DEVICE FOR TRANSFERRING A MEDIUM |
| FR2940439B1 (en) | 2008-12-18 | 2011-02-11 | Millipore Corp | DEVICE FOR TRANSFERRING A MEDIUM |
| US8544497B2 (en) | 2009-10-30 | 2013-10-01 | Emd Millipore Corporation | Fluid transfer device and system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU672536A1 (en) * | 1976-07-07 | 1979-07-05 | Gorbunov Vladimir A | Sampler |
| FR2374629A1 (en) * | 1976-12-15 | 1978-07-13 | Nestle Sa | ASEPTIC SAMPLE COLLECTION DEVICE |
| SU783628A1 (en) * | 1978-09-18 | 1980-11-30 | Грозненское Научно-Производственное Объединение "Промавтоматика" | Apparatus for taking liquid samples |
| SU855424A1 (en) * | 1979-11-01 | 1981-08-15 | Грозненское Научно-Производственное Объединение "Промавтоматика" | Device for sampling liquid |
| US4375864A (en) * | 1980-07-21 | 1983-03-08 | Scholle Corporation | Container for holding and dispensing fluid |
| EP0172838B1 (en) * | 1984-02-20 | 1988-05-25 | Pio Meyer | Sample taking device |
| DE3507412C1 (en) * | 1985-03-02 | 1986-06-19 | Jakob Dr. 8000 München Hoiß | Membrane valve for taking samples |
-
1991
- 1991-04-24 CH CH121991A patent/CH686053A5/en not_active IP Right Cessation
-
1992
- 1992-03-18 AT AT92104661T patent/ATE118887T1/en not_active IP Right Cessation
- 1992-03-18 DE DE69201455T patent/DE69201455T2/en not_active Expired - Fee Related
- 1992-03-18 DK DK92104661.1T patent/DK0510355T3/en not_active Application Discontinuation
- 1992-03-18 ES ES92104661T patent/ES2069334T3/en not_active Expired - Lifetime
- 1992-03-18 EP EP92104661A patent/EP0510355B1/en not_active Expired - Lifetime
- 1992-03-23 AU AU13127/92A patent/AU654172B2/en not_active Ceased
- 1992-03-30 CA CA002064450A patent/CA2064450A1/en not_active Abandoned
- 1992-03-31 NZ NZ242174A patent/NZ242174A/en not_active IP Right Cessation
- 1992-04-23 JP JP4104851A patent/JPH05118970A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CH686053A5 (en) | 1995-12-15 |
| AU1312792A (en) | 1992-10-29 |
| JPH05118970A (en) | 1993-05-14 |
| AU654172B2 (en) | 1994-10-27 |
| EP0510355B1 (en) | 1995-02-22 |
| ATE118887T1 (en) | 1995-03-15 |
| ES2069334T3 (en) | 1995-05-01 |
| DE69201455D1 (en) | 1995-03-30 |
| DK0510355T3 (en) | 1995-06-06 |
| DE69201455T2 (en) | 1995-06-14 |
| EP0510355A1 (en) | 1992-10-28 |
| NZ242174A (en) | 1994-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |