CA2245816A1 - Reservoir and applicator for a liquid - Google Patents
Reservoir and applicator for a liquid Download PDFInfo
- Publication number
- CA2245816A1 CA2245816A1 CA002245816A CA2245816A CA2245816A1 CA 2245816 A1 CA2245816 A1 CA 2245816A1 CA 002245816 A CA002245816 A CA 002245816A CA 2245816 A CA2245816 A CA 2245816A CA 2245816 A1 CA2245816 A1 CA 2245816A1
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- CA
- Canada
- Prior art keywords
- reservoir
- applicator
- combined storage
- threads
- external
- 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
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
- A45D34/042—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
- A61M35/003—Portable hand-held applicators having means for dispensing or spreading integral media
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
- B43M11/00—Hand or desk devices of the office or personal type for applying liquid, other than ink, by contact to surfaces, e.g. for applying adhesive
- B43M11/06—Hand-held devices
- B43M11/08—Hand-held devices of the fountain-pen type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
- G01F11/08—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2200/00—Details not otherwise provided for in A45D
- A45D2200/10—Details of applicators
- A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
- A45D2200/1018—Applicators comprising a pad, tissue, sponge, or the like comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means
Landscapes
- Health & Medical Sciences (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Coating Apparatus (AREA)
Abstract
A combined storage reservoir and applicator has a tubular reservoir (10) open at one end (11) and external threads (16) over a part of its length. A tubular applicator (13) is arranged to receive a part of the reservoir (10) including the open end (11) thereof, the applicator (13) having internal screw threads (18) which engage the reservoir threads (16). The applicator also has a closure (26) which defines a circular sealing surface to engage and seal the open end (11) of the reservoir. A stop arrangement (17, 20) resists complete withdrawal of the reservoir from the applicator on fully unscrewing the threads (16, 18) of the applicator and reservoir.
Description
'i CA 02245816 1998-08-06 I C929sp RESERVOIR AND APPLICATOR FOR A LIQUID
This invention relates to a combined storage reservoir and applicator for a liquid, particularly - but not exclusively - for use with a liquid adhesive. In particular, the invention concerns a combined storage reservoir and applicator for a liquid, comprising a tubular reservoir open at one end and closed at the other end and having external threads therearound and a tubular applicator having internal threads engageable with those of the reservoir, there being co-operating seal elements on the reservoir and the applicator to close the o reservoir when the applicator is fully threaded on to the reservoir.
Adhesives are being used on an increasing scale in the medical field, to assist the healing of wounds inflicted either accidentally or during the course of surgery. The selection of an appropriate grade of an adhesive for the intended use is critical, and the adhesive must be stored under sterile conditions, untilrequired for use. To this end, there have been various proposals for medical grade liquid adhesive storage reservoirs, to allow a medical practitioner or surgeon to release a quantity of adhesive at the time it is required for use.
One particular adhesive has been used very successfully in an operating theatre, to assist the bonding of strips to a patient at the site of a wound whereby the strips may hold together the cut tissues. This adhesive is supplied in a glass vial contained in a thin-walled clear plastic tube closed at one end and containing an applicator pad at the other end. When the adhesive is to be used, the plastic tube is squeezed to break the glass vial and release the adhesive. Continued pressure on the plastic tube urges the liquid on to and through the applicator pad.
The above-described arrangement is not entirely satisfactory. It can be difficult to break the glass vial through the plastic tube unless significant pressure IS applied at exactly the required site. Also, there is the attendant risk that the plastic tube might be penetrated by a sharp edge of the broken vial, AI~FM~)cl~ SHEET
, CA 0224~816 1998-08-06 1(~92'~p which can lead to an operator injury, as well as leakage of unused adhesive.
A known form of liquid dispenser is described in US-A4279527. This has an applicator secured to a threaded nozle on a conventional squeezable tube, a needle projecting forwardly from the nozle to engage in an orifice in 5 the applicator so as to effect a seal when the applicator is threaded down onto the tube. Other designs of dispenser may be found in US-A-5411345 and GB-A-694115. These show various dispensers with applicators all intended to effect a seal of one kind or another when the dispenser is not to be used but all are relatively complex and not particularly suited to use in a medical or surgical o environment where currently a plastic tube and glass vial assembly is employed, as described above.
The present invention aims at providing a combined storage reservoir and applicator which is particularly suitable for use in a medical or surgical environment, for use with liquid adhesives, and which overcomes the disadvantages discussed above of the known arrangement using a glass vial.
According to one aspect of the present invention, a combined storage reservoir and applicator is characterised in that:
--the threads on the reservoir are intermediate its ends;
--the reservoir has a seal seat around the internal surface of the open ~o one end of the reservoir, --the applicator is arranged to receive therewithin at least a part of the reservoir including the open one end thereof;
--the applicator has a closure member which defines an external circular sealing surface adapted to interengage and form a seal with said seal seat of ~~ the reservoir when fully threaded into the applicator; and - there is interacting retaining means respectively on the reservoir and the applicator to resist complete withdrawal of the reservoir from the applicator on performing unthreading relative rotation of the applicator and reservoir.
The arrangement of the present invention allows the containment of the ~ oo~p adhesive in a sealed chamber, until it is required for use. Then, the applicatormay be threaded away from the reservoir, so opening the reservoir and allowing the flow of liquid into the applicator, but the retaining means serves to prevent complete disengagement of the reservoir from the applicator. In this way, adhesive may leave the combined assembly only through the applicator itself.
In a preferred form of reservoir and applicator assembly of this invention, the retaining means serves to restrain complete withdrawal of the reservoir from the applicator only after the reservoir threads have been disengaged from o the applicator threads. In this way, continued relative rotation between the reservoir and applicator will not impart any axial load on the retaining means.
According to a second aspect of the present invention, there is provided a combined storage reservoir and applicator for a liquid, comprising a ~ubular reservoir open at one end and closed at the other end, the reservoir having external threads over at least a part of its length intermediate its ends and atleast the end portion of the reservoir between said one open end and its threads being formed of a relatively rigid material, and a tubular applicator arranged to receive therewithin at least said end portion of the reservoir, the applicator having internal screw threads with which the external threads of the 2() reservoir may engage, the applicator further having an internal closure which defines an external circular sealing surface adapted to engage in the one open end of the reservoir and form a seal therewith when fully threaded into the applicator, at least a part of the applicator which overlies said reservoir end portion when the seal is effective being deformable inwardly but such inward 2:~ deformation being resisted by said end portion until said end portion has been threaded away from the internal closure of the applicator.
This second aspect of the invention has the advantage that pressure cannot be applied to the applicator until such time as the applicator has been unthreaded from the reservoir so opening that reservoir to allow the flow of Page 3a follows ' CA 02245816 1998-08-06 2~r - 3a -liquid from the reservoir to the applicator. However, once the applicator has been released from the reservoir, that applicator may be squeezed inwardly to assist the ejection of adhesive from the applicator, to the required site of use.
Preferably, the one end portion of the reservoir defines an external sealing surface arranged to effect a seal to the internal tubular wall of the applicator. For example, said external sealing surface may upstand from the one end portion of the reservoir, there being an internal shoulder within the applicator with which the upstanding external sealing surface of the reservoir cooperates. This may thus perform the combined function of a retaining means o and a further seal to prevent leakage from the joint between the reservoir and the applicator.
Advantageously, at least one of said substantially annular surfaces has a conical form to increase the sealing effect the deeper the reservoir and applicator threads are interengaged. An external further sealing surface may surround the open one of the reservoir, there being formed a co-operating internal surface within the applicator and into engagement with which the external further sealing surface of the reservoir is driven as the applicator and reservoir are fully threaded together.
To facilitate the use of the applicator to apply a liquid such as a medical grade adhesive to a required site, the applicator may include a holder for an applicator pad, the holder communicating with the interior of the reservoir whenthe one end portion of the reservoir has been threaded away from the circular sealing surface.
This invention extends to a combined storage reservoir and applicator assembly of this invention as described above and including a liquid adhesive formulation contained within the reservoir.
4~ T
.
CA 0224~816 1998-08-06 By way of example oniy, one specific embodiment of the present invention - - will now be described in detail, reference being made to the accompanying drawings in which:-Figure 1 is a side view of a combined reservoir and appiicator assembly constructed and arran~ed in accordance with preferred aspects of the invention;
Figure 2 is a longitudinal sectional view through the assembly of Figure 1 and showing the reservoir closed by the applicator;
Figure 3 is similar to Figure 2 but shows the reservoir opened;
Figure 4 is a general perspective view of the applicator of Figure 1;
o Figure 5 is similar to Figure 4 but partially cut away to show internal constructional features;
Figure 6 is an end view on the applicator shown in Figures 1 and 4; and Figure 7 is a detailed view showing the applicator pad used in the arrangement of Figures 1 to 5.
lS The combined reservoir and applicator shown in the drawings is intended for use in the medical environment, to allow accurate dispensing of a liquid adhesive to a required site in the vicinity of a wound, to permit the adhesion of a dressing to the skin of a patient.
The assembly comprises a tubular reservoir 10 open at one end 11 and closed at the other end 12, the one end 1 1 being fitted into a tubular applicator 13 having an applicalor pad 1~ fitted to its end further from the reservoir 10. Thereservoir 1() includes four fins 15 to assist gripping of the reservoir when theapplicator is to be used, and external threads 16 formed at a loca~ion partway between the two ends 11 and 12 of the reservoir. At the open one end 11 of the rese~voir, there is formed an external annular rib 17 for a purpose to be described below.
The applicator has internal threads 18 arranged for interengagement with the external threads 16 of the reservoir, and also has a cylindrical substantially parallel surface 19 against which the rib 17 engages. That surface 19 tel",i,lales in a shoulder 20 adjacent the internal threads 18. Externally, the applicator 13 is formed with four slots 21 to facilitate gripping of the applicator when it is to be SlJ~S ~ JTE SHEET (RULE 26) CA 0224~816 1998-08-06 turned relative to the reservoir 1Q. The applicator also includes markings 22 to~- - indicate the direction in which the applicator should be turned relative to the reservoir, to open the reservoir.
End 23 of the applicator is formed as a holder for the applicator pad 14, ~ s shown in greater detail in Figure 7, the pad including an external surface 24 which may be sprung behind a lip 25 formed at the free end 23 of the applicator. The pad has a general wedge-shape, to facilitate accurate placement of adhesive.
There is also a groove extending along the pad, to permit air to enter the reservoir after dispensing some adhesive.
Within end 23 of the applicator there is formed a conical sealing member 26 disposed on the applicator axis, and with an annular groove 27 therearound. The open one end 11 of the reservoir 10 may engage in that groove in order that the sealing member 26 may close that open one end of the reservoir. The deeper the threads 16 and 18 are intereng~ge~, the more the open end 11 of the reservoir ispushed into the narrowing groove 27, so increasing the sealing effect between the conical ~,e",ber 26 and the end 11 of the reservoir. Passageways 29 are formed through the conical sealing member 26 in the region thereof adjacenl the base ofthe groove 27, to permit the through-flow of adhesive from the groove 27, to theapplicator pad 14.
The reservoir 10 is moulded from a relatively rigid grade of plastics material such as a rigid PVC and the applicator 13 is moulded from a softer grade of a similar plastics ",~Lt:rial, in order to permit inward deformation of that part 28 of the applicator clear of the reservoir. The applicator pad 14 is made from a slightlysoft, sintered polyethylene, in order that it may have sufficient porosity to permit the through-flow of the liquid adhesive.
In use, the reservoir 10 is charged with a sterile liquid adhesive formulation and the applicator 13 is threaded on to the reservoir untii the open one end 11 of the reservoir is tightly sealed by interengagement of the conical sealing member26 with the inner wall of the reservoir at said one end. The applicator pad 14 is snapped into the applicator holder and then the entire assembly is packaged for example in a bubble pack including instructions and so on, on the backing card.
SU~ 1 l l UTE SHFET (RULE 26) CA 0224~816 1998-08-06 The final packaged product may be steriiised for example by exposure to gamma - - radiation.
When the applicator is to be used to dispense adhesive, the entire assembly is removed from the bubble pack and the reservoir is opened by relatively twisting the reservoir 10 and the applicator 13. This separates the reservoir and the applicator, to the position shown in Figure 3. Here7 the threads 16 and 18 have separated and the rib 17 has siid back along surface 19 until therib engages the shoulder 20 of the applicator. That interengagement prevents further separation of the reservoir and appiicator and relative rotation between the o two components imparts no axial forces to either component.
The region 28 of the applicator 13 is now clear of the relatively rigid reservoir 10 and so may by sc~ lee7.sd inwardly. This applies pressure to the liquid adhesive, to encourage flow of the adhesive through the applicator pad 14. Afteruse, the reservoir and applicator may be pushed together and turned in the opposite sense, to re-engage the threads and then close the reservoir 10, to prevent unwanted leakage of adhesive. In the alternative, by holding the device with the applicator lowermost, re-engaging the threads and turning the reservoirrelative to the applicator, the effectively reducing volume of the reservoir will drive adhesive out of the reservoir through the pad 14. This couid be useful, for 20 example to flood a bandage or an area of skin with adhesive.
SIJ~S 1 l l ~ITE SHEET (RULE 26)
This invention relates to a combined storage reservoir and applicator for a liquid, particularly - but not exclusively - for use with a liquid adhesive. In particular, the invention concerns a combined storage reservoir and applicator for a liquid, comprising a tubular reservoir open at one end and closed at the other end and having external threads therearound and a tubular applicator having internal threads engageable with those of the reservoir, there being co-operating seal elements on the reservoir and the applicator to close the o reservoir when the applicator is fully threaded on to the reservoir.
Adhesives are being used on an increasing scale in the medical field, to assist the healing of wounds inflicted either accidentally or during the course of surgery. The selection of an appropriate grade of an adhesive for the intended use is critical, and the adhesive must be stored under sterile conditions, untilrequired for use. To this end, there have been various proposals for medical grade liquid adhesive storage reservoirs, to allow a medical practitioner or surgeon to release a quantity of adhesive at the time it is required for use.
One particular adhesive has been used very successfully in an operating theatre, to assist the bonding of strips to a patient at the site of a wound whereby the strips may hold together the cut tissues. This adhesive is supplied in a glass vial contained in a thin-walled clear plastic tube closed at one end and containing an applicator pad at the other end. When the adhesive is to be used, the plastic tube is squeezed to break the glass vial and release the adhesive. Continued pressure on the plastic tube urges the liquid on to and through the applicator pad.
The above-described arrangement is not entirely satisfactory. It can be difficult to break the glass vial through the plastic tube unless significant pressure IS applied at exactly the required site. Also, there is the attendant risk that the plastic tube might be penetrated by a sharp edge of the broken vial, AI~FM~)cl~ SHEET
, CA 0224~816 1998-08-06 1(~92'~p which can lead to an operator injury, as well as leakage of unused adhesive.
A known form of liquid dispenser is described in US-A4279527. This has an applicator secured to a threaded nozle on a conventional squeezable tube, a needle projecting forwardly from the nozle to engage in an orifice in 5 the applicator so as to effect a seal when the applicator is threaded down onto the tube. Other designs of dispenser may be found in US-A-5411345 and GB-A-694115. These show various dispensers with applicators all intended to effect a seal of one kind or another when the dispenser is not to be used but all are relatively complex and not particularly suited to use in a medical or surgical o environment where currently a plastic tube and glass vial assembly is employed, as described above.
The present invention aims at providing a combined storage reservoir and applicator which is particularly suitable for use in a medical or surgical environment, for use with liquid adhesives, and which overcomes the disadvantages discussed above of the known arrangement using a glass vial.
According to one aspect of the present invention, a combined storage reservoir and applicator is characterised in that:
--the threads on the reservoir are intermediate its ends;
--the reservoir has a seal seat around the internal surface of the open ~o one end of the reservoir, --the applicator is arranged to receive therewithin at least a part of the reservoir including the open one end thereof;
--the applicator has a closure member which defines an external circular sealing surface adapted to interengage and form a seal with said seal seat of ~~ the reservoir when fully threaded into the applicator; and - there is interacting retaining means respectively on the reservoir and the applicator to resist complete withdrawal of the reservoir from the applicator on performing unthreading relative rotation of the applicator and reservoir.
The arrangement of the present invention allows the containment of the ~ oo~p adhesive in a sealed chamber, until it is required for use. Then, the applicatormay be threaded away from the reservoir, so opening the reservoir and allowing the flow of liquid into the applicator, but the retaining means serves to prevent complete disengagement of the reservoir from the applicator. In this way, adhesive may leave the combined assembly only through the applicator itself.
In a preferred form of reservoir and applicator assembly of this invention, the retaining means serves to restrain complete withdrawal of the reservoir from the applicator only after the reservoir threads have been disengaged from o the applicator threads. In this way, continued relative rotation between the reservoir and applicator will not impart any axial load on the retaining means.
According to a second aspect of the present invention, there is provided a combined storage reservoir and applicator for a liquid, comprising a ~ubular reservoir open at one end and closed at the other end, the reservoir having external threads over at least a part of its length intermediate its ends and atleast the end portion of the reservoir between said one open end and its threads being formed of a relatively rigid material, and a tubular applicator arranged to receive therewithin at least said end portion of the reservoir, the applicator having internal screw threads with which the external threads of the 2() reservoir may engage, the applicator further having an internal closure which defines an external circular sealing surface adapted to engage in the one open end of the reservoir and form a seal therewith when fully threaded into the applicator, at least a part of the applicator which overlies said reservoir end portion when the seal is effective being deformable inwardly but such inward 2:~ deformation being resisted by said end portion until said end portion has been threaded away from the internal closure of the applicator.
This second aspect of the invention has the advantage that pressure cannot be applied to the applicator until such time as the applicator has been unthreaded from the reservoir so opening that reservoir to allow the flow of Page 3a follows ' CA 02245816 1998-08-06 2~r - 3a -liquid from the reservoir to the applicator. However, once the applicator has been released from the reservoir, that applicator may be squeezed inwardly to assist the ejection of adhesive from the applicator, to the required site of use.
Preferably, the one end portion of the reservoir defines an external sealing surface arranged to effect a seal to the internal tubular wall of the applicator. For example, said external sealing surface may upstand from the one end portion of the reservoir, there being an internal shoulder within the applicator with which the upstanding external sealing surface of the reservoir cooperates. This may thus perform the combined function of a retaining means o and a further seal to prevent leakage from the joint between the reservoir and the applicator.
Advantageously, at least one of said substantially annular surfaces has a conical form to increase the sealing effect the deeper the reservoir and applicator threads are interengaged. An external further sealing surface may surround the open one of the reservoir, there being formed a co-operating internal surface within the applicator and into engagement with which the external further sealing surface of the reservoir is driven as the applicator and reservoir are fully threaded together.
To facilitate the use of the applicator to apply a liquid such as a medical grade adhesive to a required site, the applicator may include a holder for an applicator pad, the holder communicating with the interior of the reservoir whenthe one end portion of the reservoir has been threaded away from the circular sealing surface.
This invention extends to a combined storage reservoir and applicator assembly of this invention as described above and including a liquid adhesive formulation contained within the reservoir.
4~ T
.
CA 0224~816 1998-08-06 By way of example oniy, one specific embodiment of the present invention - - will now be described in detail, reference being made to the accompanying drawings in which:-Figure 1 is a side view of a combined reservoir and appiicator assembly constructed and arran~ed in accordance with preferred aspects of the invention;
Figure 2 is a longitudinal sectional view through the assembly of Figure 1 and showing the reservoir closed by the applicator;
Figure 3 is similar to Figure 2 but shows the reservoir opened;
Figure 4 is a general perspective view of the applicator of Figure 1;
o Figure 5 is similar to Figure 4 but partially cut away to show internal constructional features;
Figure 6 is an end view on the applicator shown in Figures 1 and 4; and Figure 7 is a detailed view showing the applicator pad used in the arrangement of Figures 1 to 5.
lS The combined reservoir and applicator shown in the drawings is intended for use in the medical environment, to allow accurate dispensing of a liquid adhesive to a required site in the vicinity of a wound, to permit the adhesion of a dressing to the skin of a patient.
The assembly comprises a tubular reservoir 10 open at one end 11 and closed at the other end 12, the one end 1 1 being fitted into a tubular applicator 13 having an applicalor pad 1~ fitted to its end further from the reservoir 10. Thereservoir 1() includes four fins 15 to assist gripping of the reservoir when theapplicator is to be used, and external threads 16 formed at a loca~ion partway between the two ends 11 and 12 of the reservoir. At the open one end 11 of the rese~voir, there is formed an external annular rib 17 for a purpose to be described below.
The applicator has internal threads 18 arranged for interengagement with the external threads 16 of the reservoir, and also has a cylindrical substantially parallel surface 19 against which the rib 17 engages. That surface 19 tel",i,lales in a shoulder 20 adjacent the internal threads 18. Externally, the applicator 13 is formed with four slots 21 to facilitate gripping of the applicator when it is to be SlJ~S ~ JTE SHEET (RULE 26) CA 0224~816 1998-08-06 turned relative to the reservoir 1Q. The applicator also includes markings 22 to~- - indicate the direction in which the applicator should be turned relative to the reservoir, to open the reservoir.
End 23 of the applicator is formed as a holder for the applicator pad 14, ~ s shown in greater detail in Figure 7, the pad including an external surface 24 which may be sprung behind a lip 25 formed at the free end 23 of the applicator. The pad has a general wedge-shape, to facilitate accurate placement of adhesive.
There is also a groove extending along the pad, to permit air to enter the reservoir after dispensing some adhesive.
Within end 23 of the applicator there is formed a conical sealing member 26 disposed on the applicator axis, and with an annular groove 27 therearound. The open one end 11 of the reservoir 10 may engage in that groove in order that the sealing member 26 may close that open one end of the reservoir. The deeper the threads 16 and 18 are intereng~ge~, the more the open end 11 of the reservoir ispushed into the narrowing groove 27, so increasing the sealing effect between the conical ~,e",ber 26 and the end 11 of the reservoir. Passageways 29 are formed through the conical sealing member 26 in the region thereof adjacenl the base ofthe groove 27, to permit the through-flow of adhesive from the groove 27, to theapplicator pad 14.
The reservoir 10 is moulded from a relatively rigid grade of plastics material such as a rigid PVC and the applicator 13 is moulded from a softer grade of a similar plastics ",~Lt:rial, in order to permit inward deformation of that part 28 of the applicator clear of the reservoir. The applicator pad 14 is made from a slightlysoft, sintered polyethylene, in order that it may have sufficient porosity to permit the through-flow of the liquid adhesive.
In use, the reservoir 10 is charged with a sterile liquid adhesive formulation and the applicator 13 is threaded on to the reservoir untii the open one end 11 of the reservoir is tightly sealed by interengagement of the conical sealing member26 with the inner wall of the reservoir at said one end. The applicator pad 14 is snapped into the applicator holder and then the entire assembly is packaged for example in a bubble pack including instructions and so on, on the backing card.
SU~ 1 l l UTE SHFET (RULE 26) CA 0224~816 1998-08-06 The final packaged product may be steriiised for example by exposure to gamma - - radiation.
When the applicator is to be used to dispense adhesive, the entire assembly is removed from the bubble pack and the reservoir is opened by relatively twisting the reservoir 10 and the applicator 13. This separates the reservoir and the applicator, to the position shown in Figure 3. Here7 the threads 16 and 18 have separated and the rib 17 has siid back along surface 19 until therib engages the shoulder 20 of the applicator. That interengagement prevents further separation of the reservoir and appiicator and relative rotation between the o two components imparts no axial forces to either component.
The region 28 of the applicator 13 is now clear of the relatively rigid reservoir 10 and so may by sc~ lee7.sd inwardly. This applies pressure to the liquid adhesive, to encourage flow of the adhesive through the applicator pad 14. Afteruse, the reservoir and applicator may be pushed together and turned in the opposite sense, to re-engage the threads and then close the reservoir 10, to prevent unwanted leakage of adhesive. In the alternative, by holding the device with the applicator lowermost, re-engaging the threads and turning the reservoirrelative to the applicator, the effectively reducing volume of the reservoir will drive adhesive out of the reservoir through the pad 14. This couid be useful, for 20 example to flood a bandage or an area of skin with adhesive.
SIJ~S 1 l l ~ITE SHEET (RULE 26)
Claims (15)
1. A combined storage reservoir and applicator for a liquid, comprising:
- a tubular reservoir (10) open at one end (11) and closed at the other end (12) and having external threads (16) therearound;
- a tubular applicator (13) having internal threads (18) engageable with those (16) of the reservoir and there being co-operating seal elements on the reservoir and the applicator to close the reservoir when the applicator is fullythreaded on to the reservoir;
characterised in that:
-the threads (16) on the reservoir (10) are intermediate its ends (11,12);
- the reservoir (10) has a seal seat around the internal surface of the open one end (11) of the reservoir, - the applicator (13) is arranged to receive therewithin at least a part of the reservoir (10) including the open one end (11) thereof;
- the applicator (13) has a closure member (26) which defines an external circular sealing surface adapted to interengage and form a seal with said seal seat of the reservoir (10) when fully threaded into the applicator (13);
and - there is interacting retaining means (17,20) respectively on the reservoir (10) and the applicator (13) to resist complete withdrawal of the reservoir (10) from the applicator (13) on performing unthreading relative rotation of the applicator and reservoir.
- a tubular reservoir (10) open at one end (11) and closed at the other end (12) and having external threads (16) therearound;
- a tubular applicator (13) having internal threads (18) engageable with those (16) of the reservoir and there being co-operating seal elements on the reservoir and the applicator to close the reservoir when the applicator is fullythreaded on to the reservoir;
characterised in that:
-the threads (16) on the reservoir (10) are intermediate its ends (11,12);
- the reservoir (10) has a seal seat around the internal surface of the open one end (11) of the reservoir, - the applicator (13) is arranged to receive therewithin at least a part of the reservoir (10) including the open one end (11) thereof;
- the applicator (13) has a closure member (26) which defines an external circular sealing surface adapted to interengage and form a seal with said seal seat of the reservoir (10) when fully threaded into the applicator (13);
and - there is interacting retaining means (17,20) respectively on the reservoir (10) and the applicator (13) to resist complete withdrawal of the reservoir (10) from the applicator (13) on performing unthreading relative rotation of the applicator and reservoir.
2. A combined storage reservoir and applicator as claimed in claim 1, wherein the retaining means (17,20) restrains complete withdrawal of the reservoir (10) after the reservoir threads (16) are disengaged from the threads (18) of the applicator (13).
3. A combined storage reservoir and applicator as claimed in claim 1 or claims 2, wherein the external circular sealing surface of the closure member(26) is of tapering conical form.
4. A combined storage reservoir and applicator as claimed in any of the preceding claims, wherein the applicator (13) is manufactured from a deformable grade of a plastics material.
5. A combined storage reservoir and applicator as claimed in claim 4, wherein the reservoir (10) is manufactured from a relatively rigid material and resists inward deformation of the applicator (13) until at least partially unthreaded from the applicator.
6. A combined storage reservoir and applicator as claimed in any of the preceding claims, wherein an external further sealing surface (17) surrounds the open one end (11) of the reservoir, and there is formed a co-operating internal surface (19) within the applicator (13) and into engagement with which the external further sealing surface (17) of the reservoir is driven as the applicator and reservoir are fully threaded together.
7. A combined storage reservoir and applicator as claimed in claim 6, wherein the external further sealing surface is defined by an upstanding rib (17) around the one end of the reservoir (10), which rib (17) interengages with a shoulder (20) formed within the applicator (13) to define the interacting retaining means.
8. A combined storage reservoir and applicator for a liquid, comprising a tubular reservoir (10) open at one end (11) and closed at the other end (12), the reservoir having external threads (16) over at least a part of its length intermediate its ends and at least the end portion of the reservoir between said open one end (11) and its threads (16) being formed of a relatively rigid material; and a tubular applicator (13) arranged to receive therewithin at least said end portion of the reservoir (10), the applicator having internal screw threads (18) with which the external threads (16) of the reservoir may engage, the applicator further having an internal closure (26) which defines an external circular sealing surface adapted to engage in the open one end (11) of the reservoir and form a seal therewith when fully threaded into theapplicator, at least a part of the applicator which overlies said reservoir end portion when the seal is effective being deformable inwardly but such inward deformation being resisted by said end portion until said end portion has been threaded away from the internal closure of the applicator.
9. A combined storage reservoir and applicator as claimed in claim 8, wherein the one end portion of the reservoir (10) defines an external sealingsurface (17) arranged to effect a seal to the internal tubular wall (19) of the applicator.
10. A combined storage reservoir and applicator as claimed in claim 9, wherein said external sealing surface (17) upstands from the one end portion of the reservoir, and there is formed an internal shoulder (20) within the applicator with which the upstanding external sealing surface of the reservoir co-operates to form therewith retaining means to resist complete withdrawal of the reservoir from the applicator on performing unthreading relative rotation ofthe applicator and reservoir.
11. A combined storage reservoir and applicator as claimed in any of claims 8 to 10, wherein the one end portion of the reservoir defines an internalsubstantially annular surface, and the circular sealing surface of the applicator is an external substantially annular surface, said substantially annular surfaces being adapted to interengage on threading the reservoir into the applicator so as to close the open end of the reservoir.
12. A combined storage reservoir and applicator as claimed in claim 11, wherein at least one of said substantially annular surfaces has a conical form to increase the sealing effect the deeper the reservoir and applicator threads are interengaged.
13. A combined storage reservoir and applicator as claimed in any of the preceding claims, wherein the applicator includes a holder for an applicatorpad, the applicator holder communicating with the interior of the reservoir whenthe one end portion of the reservoir has been threaded away from the circular sealing surface
14. A combined storage reservoir and applicator as claimed in claim 13 and further comprising an applicator pad held within the applicator pad holder and arranged to receive liquid from the reservoir when the reservoir has been threaded away from the circular sealing surface.
15. A combined storage reservoir and applicator as claimed in any of the preceding claims and including a liquid adhesive formulation contained within the reservoir.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9602461.7 | 1996-02-07 | ||
| GBGB9602461.7A GB9602461D0 (en) | 1996-02-07 | 1996-02-07 | Reservoir and applicator for a liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2245816A1 true CA2245816A1 (en) | 1997-08-14 |
Family
ID=10788272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002245816A Abandoned CA2245816A1 (en) | 1996-02-07 | 1997-02-06 | Reservoir and applicator for a liquid |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0879399A1 (en) |
| JP (1) | JP2000506607A (en) |
| CA (1) | CA2245816A1 (en) |
| GB (1) | GB9602461D0 (en) |
| IL (1) | IL125653A0 (en) |
| WO (1) | WO1997029347A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007046600A1 (en) * | 2007-09-27 | 2009-04-02 | Linhardt Metallwarenfabrik Gmbh & Co Kg | Method for applying a liquid, medical treatment medium to a region to be treated and medical device |
| CN110575340B (en) * | 2019-10-15 | 2021-04-02 | 李丽霞 | Dermatological nursing appliance combiner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694115A (en) * | 1950-08-17 | 1953-07-15 | Martin Williams Ltd | Improvements in or relating to cleaning devices |
| US4279527A (en) * | 1978-05-01 | 1981-07-21 | Walter Moe | Liquid dispenser and applicator |
| US5411345A (en) * | 1992-07-02 | 1995-05-02 | Konishi Co., Ltd. | Felt-tipped pen type adhesive applier |
-
1996
- 1996-02-07 GB GBGB9602461.7A patent/GB9602461D0/en active Pending
-
1997
- 1997-02-06 WO PCT/GB1997/000357 patent/WO1997029347A1/en not_active Application Discontinuation
- 1997-02-06 CA CA002245816A patent/CA2245816A1/en not_active Abandoned
- 1997-02-06 IL IL12565397A patent/IL125653A0/en unknown
- 1997-02-06 JP JP9528299A patent/JP2000506607A/en active Pending
- 1997-02-06 EP EP97902508A patent/EP0879399A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997029347A1 (en) | 1997-08-14 |
| GB9602461D0 (en) | 1996-04-03 |
| JP2000506607A (en) | 2000-05-30 |
| EP0879399A1 (en) | 1998-11-25 |
| IL125653A0 (en) | 1999-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |