CA2442517C - Syringe for visco-elastic solutions - Google Patents
Syringe for visco-elastic solutions Download PDFInfo
- Publication number
- CA2442517C CA2442517C CA2442517A CA2442517A CA2442517C CA 2442517 C CA2442517 C CA 2442517C CA 2442517 A CA2442517 A CA 2442517A CA 2442517 A CA2442517 A CA 2442517A CA 2442517 C CA2442517 C CA 2442517C
- Authority
- CA
- Canada
- Prior art keywords
- diaphragm
- viscoelastic
- solutions
- syringe
- dispensed
- 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 - Lifetime
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Classifications
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
- A61M5/285—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened
- A61M5/286—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened upon internal pressure increase, e.g. pierced or burst
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
- A61M5/284—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle comprising means for injection of two or more media, e.g. by mixing
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31596—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M2005/1787—Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Prostheses (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Coating Apparatus (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
The invention concerns a device for dispensing visco-elastic solutions consisting of a syringe (1) which contains at least two visco-elastic solutions (V1, V2) having different properties, said solutions (V1, V2) being dispensed successively, in a predetermined sequence. The invention is characterised in that said syringe (1) comprises at least a mobile diaphragm (10), separating said at least two visco-elastic solutions (V1, V2).
Description
SYRINGE FOR VISCO-ELASTIC SOLUTIONS
The present invention relates to a syringe for injecting viscoelastic solutions used in medical and surgical fields. Such solutions are currently used in rheumatology in the form of intro-articular injections, in dermatology for filling in wrinkles, in plastic surgery, in abdominal surgery, and in ophthalmological surgery, with it being possible for other uses to emerge in the future.
More particularly, the present invention is applicable during cataract surgery, when an intraocular lens is implanted. In which case, viscoelastic solutions serve to create the spaces necessary for the surgery, and to protect the tissues of the eye, in particular the corneal endothelium. An important condition is that this type of solution must be removed by suction at the end of the operation, failing which it might cause a harmful increase in the intraocular pressure.
In cataract surgery, a substance having dynamic viscosity that is higher at high shear rates is generally used first. This normally applies during the surgical steps known as "capsulorhexis" and "phacoemulsification", which are surgical techniques that are well known to the person skilled in the art. A substance having dynamic viscosity that is lower under similar shear conditions is preferably used second, while the intraocular lens is being implanted.
Currently, it is necessary for the surgeon to manipulate two syringes, each of which contains a distinct viscoelastic solution. The other possibility is to use a single viscoelastic solution. In the former case, the operation is made more complicated by the use of more than one syringe, and in the latter case, the solution used constitutes a poor compromise, and therefore suffers from at least one drawback, namely either it does not stay properly in place during phacoemulsification, or else it is difficult to extract at the end of the operation, after the intraocular lens has been implanted.
An object of the present invention is to provide a syringe for injecting viscoelastic solutions in the medical field that does not suffer from the above-mentioned drawbacks.
In particular, an object of the present invention is to provide a syringe for injecting viscoelastic solutions that simplifies the task of the surgeon, and that makes it possible to use substances having good characteristics at each stage of the operation.
A further object of the present invention is to provide such a syringe for injecting viscoelastic solutions that is simple and inexpensive to manufacture and to assemble.
The present invention thus provides a device for dispensing viscoelastic solutions, said device consisting of a syringe which contains at least two viscoelastic solutions having different properties, said solutions being dispensed in succession, in a predetermined order, said device being characterized in that said syringe includes at least one moving diaphragm that separates said at least two viscoelastic solutions.
Advantageously, said diaphragm includes sealing gaskets.
Advantageously, said moving diaphragm incorporates a preferably small opening enabling the viscoelastic solution disposed upstream from the diaphragm to be discharged after the viscoelastic solution disposed downstream from the diaphragm has been dispensed in full.
In a variant embodiment, said opening is closed off by a membrane, said syringe being provided with opening means, such as a piercing spike, suitable for opening said membrane once the viscoelastic solution disposed downstream from the diaphragm has been dispensed in full.
The present invention relates to a syringe for injecting viscoelastic solutions used in medical and surgical fields. Such solutions are currently used in rheumatology in the form of intro-articular injections, in dermatology for filling in wrinkles, in plastic surgery, in abdominal surgery, and in ophthalmological surgery, with it being possible for other uses to emerge in the future.
More particularly, the present invention is applicable during cataract surgery, when an intraocular lens is implanted. In which case, viscoelastic solutions serve to create the spaces necessary for the surgery, and to protect the tissues of the eye, in particular the corneal endothelium. An important condition is that this type of solution must be removed by suction at the end of the operation, failing which it might cause a harmful increase in the intraocular pressure.
In cataract surgery, a substance having dynamic viscosity that is higher at high shear rates is generally used first. This normally applies during the surgical steps known as "capsulorhexis" and "phacoemulsification", which are surgical techniques that are well known to the person skilled in the art. A substance having dynamic viscosity that is lower under similar shear conditions is preferably used second, while the intraocular lens is being implanted.
Currently, it is necessary for the surgeon to manipulate two syringes, each of which contains a distinct viscoelastic solution. The other possibility is to use a single viscoelastic solution. In the former case, the operation is made more complicated by the use of more than one syringe, and in the latter case, the solution used constitutes a poor compromise, and therefore suffers from at least one drawback, namely either it does not stay properly in place during phacoemulsification, or else it is difficult to extract at the end of the operation, after the intraocular lens has been implanted.
An object of the present invention is to provide a syringe for injecting viscoelastic solutions in the medical field that does not suffer from the above-mentioned drawbacks.
In particular, an object of the present invention is to provide a syringe for injecting viscoelastic solutions that simplifies the task of the surgeon, and that makes it possible to use substances having good characteristics at each stage of the operation.
A further object of the present invention is to provide such a syringe for injecting viscoelastic solutions that is simple and inexpensive to manufacture and to assemble.
The present invention thus provides a device for dispensing viscoelastic solutions, said device consisting of a syringe which contains at least two viscoelastic solutions having different properties, said solutions being dispensed in succession, in a predetermined order, said device being characterized in that said syringe includes at least one moving diaphragm that separates said at least two viscoelastic solutions.
Advantageously, said diaphragm includes sealing gaskets.
Advantageously, said moving diaphragm incorporates a preferably small opening enabling the viscoelastic solution disposed upstream from the diaphragm to be discharged after the viscoelastic solution disposed downstream from the diaphragm has been dispensed in full.
In a variant embodiment, said opening is closed off by a membrane, said syringe being provided with opening means, such as a piercing spike, suitable for opening said membrane once the viscoelastic solution disposed downstream from the diaphragm has been dispensed in full.
Advantageously, a small air bubble is disposed in said opening in the diaphragm so as to prevent any contact between the viscoelastic solutions.
Advantageously, said diaphragm is connected via a temporary mechanical coupling to the plunger of the syringe during dispensing of the viscoelastic solution disposed downstream from the diaphragm, said temporary mechanical coupling being eliminated once said viscoelastic solution has been dispensed in full, so as to enable the viscoelastic solution disposed upstream from the diaphragm to be dispensed.
Advantageously, said at least two viscoelastic solutions have different rheological properties.
Advantageously, said at least two viscoelastic 1S solutions have different chemical compositions and/or different molecular weights of their active principles and/or different concentrations of their active principles.
Advantageously, said at least two viscoelastic solutions have dynamic viscosities that are different at high shear rates.
The present invention also provides the use of the syringe as defined above in cataract surgery.
Other characteristics and advantages of the present invention will appear more clearly on reading the following detailed description of two advantageous embodiments thereof, given with reference to the accompanying drawing which is given by way of non-limiting example, and in which:
Figure 1 is a diagrammatic view in section of a first embodiment of a syringe of the present invention;
and Figure 2 is a diagrammatic view in section of a second embodiment of a syringe of the present invention.
3S In general, a syringe 1 comprises a generally cylindrical syringe body 2 provided firstly with a dispensing orifice 3 and secondly with a plunger 4 actuated by an actuating rod 5. The user presses on the actuating rod 5 to move the plunger 4 inside the body 2 for the purpose of dispensing the substance contained in the syringe through the dispensing orifice 3.
In the invention, the syringe 1 contains at least two viscoelastic solutions V1, V2 which have different properties, said solutions V1, V2 being dispensed in succession in a predetermined order.
More particularly, the at least two viscoelastic solutions V1, V2 differ in their chemistry and/or in the molecular weights of their active principles and/or in the concentrations of said active principles. More generally, the viscoelastic solutions of the present invention have different rheological properties, and advantageously they have different dynamic viscosities, at high shear rates.
In the invention, provision is made to interpose a moving diaphragm 10 between the solutions V1, V2. The diaphragm 10 is preferably provided with sealing gaskets 15 on its outside periphery, which gaskets co-operate with the body 2 of the syringe 1. Thus, the diaphragm 10 can slide against the inside wall of the syringe body in leaktight manner, while being guided like the plunger in the syringe. As the first viscoelastic solution V1 is dispensed, the diaphragm 10 moves at the same time as the plunger 4 under the effect of the thrust that is transmitted by the second viscoelastic solution V2. In a variant, it is possible to imagine a temporary mechanical coupling that connects the diaphragm 10 to the plunger 4 for the purpose of displacing these two elements simultaneously while the first viscoelastic solution VI
is being discharged, said mechanical coupling being eliminated when the second viscoelastic solution V2 is dispensed.
In order to enable the second viscoelastic solution V2 to be dispensed, the diaphragm 10 is provided with an opening 11 that is preferably disposed centrally and that is preferably small in size. This is generally sufficient to prevent the solutions V1 and V2 from mixing before the solution V1 is dispensed in full, as shown in the example in Figure 1, even if said opening 11 is not 5 closed off.
Thus, when the user presses on the actuating rod 5, firstly the first solution Vl is discharged through the dispensing orifice 3, then the diaphragm comes into abutment against the end wall of the body 2 of the syringe, and the second viscoelastic solution V2 is then discharged through the opening 11 in the diaphragm. In order for the syringe to operate properly, the force to be exerted to cause the second viscoelastic solution V2 to pass through the small opening 11 must generally be greater than the friction between the diaphragm 10 and the wall of the syringe, with the presence of the mechanical coupling being taken into account when applicable. The presence of a small interface of air inside the opening 11, e.g. a captive small air bubble, advantageously makes it possible to prevent any contact between the two solutions until they are used.
In the embodiment shown in Figure 2, the diaphragm 10 is shown to be fully leaktight, with a membrane 12 that closes off the opening 11 which can then be larger than in the embodiment shown in Figure 1. This implementation may be considered when the solutions V1 and V2 tend to mix, e.g. merely by returning to osmotic equilibrium or while the first solution V1 is being dispensed. The syringe 1 is then provided with opening means such as piercing spike 8 adapted to opening said membrane 12 when the diaphragm 10 comes into contact with the end-wall of the syringe, i.e. once the first viscoelastic solution V1 which is disposed downstream from the diaphragm has been dispensed in full.
In this way, contact is totally prevented between the two solutions V1 and V2 prior to and during actuation of the device.
Advantageously, said diaphragm is connected via a temporary mechanical coupling to the plunger of the syringe during dispensing of the viscoelastic solution disposed downstream from the diaphragm, said temporary mechanical coupling being eliminated once said viscoelastic solution has been dispensed in full, so as to enable the viscoelastic solution disposed upstream from the diaphragm to be dispensed.
Advantageously, said at least two viscoelastic solutions have different rheological properties.
Advantageously, said at least two viscoelastic 1S solutions have different chemical compositions and/or different molecular weights of their active principles and/or different concentrations of their active principles.
Advantageously, said at least two viscoelastic solutions have dynamic viscosities that are different at high shear rates.
The present invention also provides the use of the syringe as defined above in cataract surgery.
Other characteristics and advantages of the present invention will appear more clearly on reading the following detailed description of two advantageous embodiments thereof, given with reference to the accompanying drawing which is given by way of non-limiting example, and in which:
Figure 1 is a diagrammatic view in section of a first embodiment of a syringe of the present invention;
and Figure 2 is a diagrammatic view in section of a second embodiment of a syringe of the present invention.
3S In general, a syringe 1 comprises a generally cylindrical syringe body 2 provided firstly with a dispensing orifice 3 and secondly with a plunger 4 actuated by an actuating rod 5. The user presses on the actuating rod 5 to move the plunger 4 inside the body 2 for the purpose of dispensing the substance contained in the syringe through the dispensing orifice 3.
In the invention, the syringe 1 contains at least two viscoelastic solutions V1, V2 which have different properties, said solutions V1, V2 being dispensed in succession in a predetermined order.
More particularly, the at least two viscoelastic solutions V1, V2 differ in their chemistry and/or in the molecular weights of their active principles and/or in the concentrations of said active principles. More generally, the viscoelastic solutions of the present invention have different rheological properties, and advantageously they have different dynamic viscosities, at high shear rates.
In the invention, provision is made to interpose a moving diaphragm 10 between the solutions V1, V2. The diaphragm 10 is preferably provided with sealing gaskets 15 on its outside periphery, which gaskets co-operate with the body 2 of the syringe 1. Thus, the diaphragm 10 can slide against the inside wall of the syringe body in leaktight manner, while being guided like the plunger in the syringe. As the first viscoelastic solution V1 is dispensed, the diaphragm 10 moves at the same time as the plunger 4 under the effect of the thrust that is transmitted by the second viscoelastic solution V2. In a variant, it is possible to imagine a temporary mechanical coupling that connects the diaphragm 10 to the plunger 4 for the purpose of displacing these two elements simultaneously while the first viscoelastic solution VI
is being discharged, said mechanical coupling being eliminated when the second viscoelastic solution V2 is dispensed.
In order to enable the second viscoelastic solution V2 to be dispensed, the diaphragm 10 is provided with an opening 11 that is preferably disposed centrally and that is preferably small in size. This is generally sufficient to prevent the solutions V1 and V2 from mixing before the solution V1 is dispensed in full, as shown in the example in Figure 1, even if said opening 11 is not 5 closed off.
Thus, when the user presses on the actuating rod 5, firstly the first solution Vl is discharged through the dispensing orifice 3, then the diaphragm comes into abutment against the end wall of the body 2 of the syringe, and the second viscoelastic solution V2 is then discharged through the opening 11 in the diaphragm. In order for the syringe to operate properly, the force to be exerted to cause the second viscoelastic solution V2 to pass through the small opening 11 must generally be greater than the friction between the diaphragm 10 and the wall of the syringe, with the presence of the mechanical coupling being taken into account when applicable. The presence of a small interface of air inside the opening 11, e.g. a captive small air bubble, advantageously makes it possible to prevent any contact between the two solutions until they are used.
In the embodiment shown in Figure 2, the diaphragm 10 is shown to be fully leaktight, with a membrane 12 that closes off the opening 11 which can then be larger than in the embodiment shown in Figure 1. This implementation may be considered when the solutions V1 and V2 tend to mix, e.g. merely by returning to osmotic equilibrium or while the first solution V1 is being dispensed. The syringe 1 is then provided with opening means such as piercing spike 8 adapted to opening said membrane 12 when the diaphragm 10 comes into contact with the end-wall of the syringe, i.e. once the first viscoelastic solution V1 which is disposed downstream from the diaphragm has been dispensed in full.
In this way, contact is totally prevented between the two solutions V1 and V2 prior to and during actuation of the device.
As shown diagrammatically in the drawing, at its dispensing opening 3, the syringe may be provided with a Luer Lock secure connection system that makes it possible to lock an injection needle or cannula to the end-piece of the syringe.
As mentioned above, a particularly advantageous use of the present invention relates to cataract surgery, but the present invention is not limited to such a use.
Although the present invention is described with reference to two advantageous embodiments thereof, it is not limited by the examples shown, and the person skilled in the art may make any modifications to it without going beyond the ambit of the present invention, as defined by the accompanying claims.
As mentioned above, a particularly advantageous use of the present invention relates to cataract surgery, but the present invention is not limited to such a use.
Although the present invention is described with reference to two advantageous embodiments thereof, it is not limited by the examples shown, and the person skilled in the art may make any modifications to it without going beyond the ambit of the present invention, as defined by the accompanying claims.
Claims (8)
1. A device for dispensing viscoelastic solutions, said device consisting of a syringe (1) which contains at least two viscoelastic solutions (V1, V2) having different properties, said solutions (V1, V2) being dispensed in succession, in a predetermined order, said syringe (1) including at least one moving diaphragm (10) that separates said at least two viscoelastic solutions (V1, V2), the device being characterized in that said moving diaphragm (10) incorporates a preferably small opening (11) enabling the viscoelastic solution (V2) disposed upstream from the diaphragm (10) to be discharged after the viscoelastic solution (V1) disposed downstream from the diaphragm (10) has been dispensed in full.
2. A device according to claim 1, in which said diaphragm (10) includes sealing gaskets (15).
3. A device according to claim 1 or claim 2, in which a small air bubble is disposed in said opening (11) in the diaphragm (10) so as to prevent any contact between the viscoelastic solutions (V1, V2).
4. A device according to any preceding claim, in which said diaphragm (10) is connected via a temporary mechanical coupling to the plunger (4) of the syringe during dispensing of the viscoelastic solution (V1) disposed downstream from the diaphragm (10), said temporary mechanical coupling being eliminated once said viscoelastic solution (VI) has been dispensed in full, so as to enable the viscoelastic solution (V2) disposed upstream from the diaphragm (10) to be dispensed.
5. A device according to any preceding claim, in which said at least two viscoelastic solutions (V1, V2) have different rheological properties.
6. A device according to any preceding claim, in which said at least two viscoelastic solutions (V1, V2) have different chemical compositions and/or different molecular weights of their active principles and/or different concentrations of their active principles.
7. A device according to any preceding claim, in which said at least two viscoelastic solutions have dynamic viscosities that are different at high shear rates.
8. The use of the device according to any preceding claim in cataract surgery.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0104090A FR2822710B1 (en) | 2001-03-27 | 2001-03-27 | SYRINGE FOR VISCOLEASTIC SOLUTIONS |
| FR01/04090 | 2001-03-27 | ||
| PCT/FR2002/001035 WO2002076534A1 (en) | 2001-03-27 | 2002-03-26 | Syringe for visco-elastic solutions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2442517A1 CA2442517A1 (en) | 2002-10-03 |
| CA2442517C true CA2442517C (en) | 2010-06-15 |
Family
ID=8861572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2442517A Expired - Lifetime CA2442517C (en) | 2001-03-27 | 2002-03-26 | Syringe for visco-elastic solutions |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7001362B2 (en) |
| EP (1) | EP1372766B1 (en) |
| JP (1) | JP2004538043A (en) |
| AT (1) | ATE458515T1 (en) |
| CA (1) | CA2442517C (en) |
| DE (1) | DE60235450D1 (en) |
| DK (1) | DK1372766T3 (en) |
| ES (1) | ES2338993T3 (en) |
| FR (1) | FR2822710B1 (en) |
| PT (1) | PT1372766E (en) |
| WO (1) | WO2002076534A1 (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2822710B1 (en) * | 2001-03-27 | 2004-04-02 | Lab Contactologie Appl Lca | SYRINGE FOR VISCOLEASTIC SOLUTIONS |
| AU2005207684B2 (en) * | 2004-02-02 | 2009-12-17 | Zoetis Broomhill Ip Limited | Method and device for treating a teat canal of an animal |
| CA2944753A1 (en) | 2004-02-02 | 2005-08-11 | Bimeda Research & Development Limited | Sequential delivery injector device |
| US7101354B2 (en) * | 2004-05-03 | 2006-09-05 | Infusive Technologies, Llc | Mixing syringe with and without flush |
| US6997910B2 (en) * | 2004-05-03 | 2006-02-14 | Infusive Technologies, Llc | Multi-chamber, sequential dose dispensing syringe |
| US7998106B2 (en) * | 2004-05-03 | 2011-08-16 | Thorne Jr Gale H | Safety dispensing system for hazardous substances |
| US7892194B2 (en) * | 2004-12-10 | 2011-02-22 | Saebo, Inc. | Dynamic hand splints |
| US8529517B2 (en) * | 2005-05-02 | 2013-09-10 | Shi Zi Technology, Ltd. | Autoflush syringe |
| US8075533B2 (en) | 2005-05-02 | 2011-12-13 | Preventiv, Inc. | Autoflush syringe |
| US8936577B2 (en) | 2005-05-02 | 2015-01-20 | Shi Zi Technology, Ltd. | Methods and devices for autoflush syringes |
| EP2114346B1 (en) * | 2007-01-25 | 2018-08-22 | Hyperbranch Medical Technology, Inc. | Applicators for multiple component formulations and the like |
| JP2008259704A (en) * | 2007-04-12 | 2008-10-30 | Hisamitsu Pharmaceut Co Inc | Prefilled syringe |
| CA2639729A1 (en) * | 2007-09-27 | 2009-03-27 | Tyco Healthcare Group Lp | Multiple stage fluid delivery device and method of use |
| US8142403B2 (en) * | 2008-06-30 | 2012-03-27 | Tyco Healthcare Group Lp | Syringe assembly with plunger having a secondary dispensing reservoir |
| US8152778B2 (en) * | 2008-09-30 | 2012-04-10 | Tyco Healthcare Group Lp | Device for interfacing with standard luer lock syringes |
| US20130112622A1 (en) * | 2010-07-14 | 2013-05-09 | Qiagen Gmbh | New liquid processing device |
| ES2729993T3 (en) | 2011-10-14 | 2019-11-07 | Amgen Inc | Injector and assembly procedure |
| DE102012107652A1 (en) * | 2012-08-21 | 2014-03-20 | Astrium Gmbh | Container for the at least largely separate storage and delivery of substances, in particular for storage and delivery in outer space |
| EP2922589B1 (en) * | 2012-11-26 | 2021-03-03 | Becton, Dickinson and Company | Valve permitting mixing in a drug delivery device |
| LT2976117T (en) | 2013-03-22 | 2021-02-25 | Amgen Inc. | Injector and method of assembly |
| EP3046605B1 (en) | 2013-09-16 | 2019-01-09 | Zoetis Services LLC | Assembly for sequentially delivering substances, and associated methods |
| AU2014340171B2 (en) | 2013-10-24 | 2019-05-30 | Amgen Inc. | Injector and method of assembly |
| US10952709B2 (en) | 2014-04-04 | 2021-03-23 | Hyperbranch Medical Technology, Inc. | Extended tip spray applicator for two-component surgical sealant, and methods of use thereof |
| US9867952B2 (en) | 2014-10-07 | 2018-01-16 | N&M Surgical Advancements, LLC | Delivery tool of a viscoelastic syringe assembly |
| US10258986B2 (en) | 2014-11-12 | 2019-04-16 | University Of New Hampshire | Viscoelastic fluid drop production |
| DE102015002234A1 (en) | 2014-12-05 | 2016-06-09 | Elm - Plastic Gmbh | Injector for dispensing a liquid or pasty substance, in particular medicament |
| DE102015206757A1 (en) * | 2015-04-15 | 2016-10-20 | Henkel IP & Holding GmbH | Mixing and dispensing device and method for the provision and application of an adhesive consisting of at least two components |
| KR102055917B1 (en) * | 2015-12-08 | 2019-12-16 | 한국전자통신연구원 | Device for storing reagents and apparatus for bio-reaction having the same |
| US10124340B2 (en) * | 2015-12-08 | 2018-11-13 | Electronics And Telecommunications Research Institute | Reagent storage device and bio-reaction apparatus including the same |
| KR20210131356A (en) | 2019-02-27 | 2021-11-02 | 벡톤 디킨슨 프랑스 | A valve stopper for a medical injection device and a medical injection device for dispensing at least one composition |
| US20220241050A1 (en) * | 2019-07-19 | 2022-08-04 | Septodont Ou Septodont Sas Ou Specialites Septodont | Cartridge for dispensing a material |
| EP3881877A1 (en) * | 2020-03-17 | 2021-09-22 | Becton Dickinson France | Stopper for a medical injection device |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4630627Y1 (en) * | 1968-07-30 | 1971-10-22 | ||
| FR2110516A5 (en) * | 1970-10-20 | 1972-06-02 | Blanchet Henry | Two compartment automatic syringe - for multiple inoculation |
| US3911916A (en) * | 1971-10-29 | 1975-10-14 | Peter A Stevens | Sequential injection syringe |
| AT341649B (en) * | 1975-08-07 | 1978-02-27 | Immuno Ag | INJECTION SYRINGE |
| US4188949A (en) * | 1977-07-05 | 1980-02-19 | Becton, Dickinson & Company | Sequential injection syringe |
| EP0072058A1 (en) * | 1981-08-10 | 1983-02-16 | Duphar International Research B.V | Multiple-compartment syringe |
| US4439184A (en) * | 1982-05-03 | 1984-03-27 | Concord Laboratories, Inc. | Two-dose syringe |
| US5166331A (en) * | 1983-10-10 | 1992-11-24 | Fidia, S.P.A. | Hyaluronics acid fractions, methods for the preparation thereof, and pharmaceutical compositions containing same |
| US4702737A (en) * | 1986-07-14 | 1987-10-27 | Pizzino Joanne L | Dual dose syringe |
| US4715854A (en) * | 1986-07-17 | 1987-12-29 | Vaillancourt Vincent L | Multidose disposable syringe and method of filling same |
| US4929230A (en) * | 1988-09-30 | 1990-05-29 | Pfleger Frederick W | Syringe construction |
| US5102388A (en) * | 1991-07-15 | 1992-04-07 | Richmond John E | Sequential delivery syringe |
| IL105396A (en) * | 1992-04-30 | 1998-02-22 | Takeda Chemical Industries Ltd | Prefilled syringe |
| JPH06181985A (en) * | 1992-09-18 | 1994-07-05 | Takeda Chem Ind Ltd | Pre-filled syringe |
| KR0171682B1 (en) * | 1992-12-01 | 1999-02-01 | 데츠로 히가시카와 | Syringe |
| DE4445969C1 (en) * | 1994-12-22 | 1996-03-14 | Schott Glaswerke | Syringe cylinder with two compartments for two constituents |
| US5792103A (en) * | 1995-02-03 | 1998-08-11 | Schwartz; Daniel M. | Viscosurgical method and apparatus |
| JPH08280800A (en) * | 1995-04-12 | 1996-10-29 | Nissho Corp | Prefilled syringe for two-liquid injection |
| JP3419145B2 (en) * | 1995-04-25 | 2003-06-23 | ニプロ株式会社 | Prefilled syringe |
| FR2750051A1 (en) * | 1996-06-21 | 1997-12-26 | Debiotech Sa | Medical syringe comprise one or more free pistons of elastic material |
| JPH1189934A (en) * | 1997-09-17 | 1999-04-06 | Takeda Chem Ind Ltd | Pre-filled syringe |
| EP0974320A1 (en) * | 1998-05-26 | 2000-01-26 | Novartis AG | Medical device for dispensing viscoelastic compositions |
| WO2002011793A1 (en) * | 2000-08-08 | 2002-02-14 | Medical Information Services, Inc. | Kit preparation syringe, intermediate slide valve for syringes, and kit preparation |
| US20020035351A1 (en) * | 2000-09-16 | 2002-03-21 | Lodice Christopher Charles | Single barrel double chamber syringe |
| FR2822710B1 (en) * | 2001-03-27 | 2004-04-02 | Lab Contactologie Appl Lca | SYRINGE FOR VISCOLEASTIC SOLUTIONS |
-
2001
- 2001-03-27 FR FR0104090A patent/FR2822710B1/en not_active Expired - Lifetime
-
2002
- 2002-03-26 DE DE60235450T patent/DE60235450D1/en not_active Expired - Lifetime
- 2002-03-26 JP JP2002575044A patent/JP2004538043A/en active Pending
- 2002-03-26 DK DK02722375.9T patent/DK1372766T3/en active
- 2002-03-26 AT AT02722375T patent/ATE458515T1/en active
- 2002-03-26 EP EP02722375A patent/EP1372766B1/en not_active Expired - Lifetime
- 2002-03-26 CA CA2442517A patent/CA2442517C/en not_active Expired - Lifetime
- 2002-03-26 ES ES02722375T patent/ES2338993T3/en not_active Expired - Lifetime
- 2002-03-26 US US10/472,804 patent/US7001362B2/en not_active Expired - Lifetime
- 2002-03-26 WO PCT/FR2002/001035 patent/WO2002076534A1/en active Application Filing
- 2002-03-26 PT PT02722375T patent/PT1372766E/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2442517A1 (en) | 2002-10-03 |
| DK1372766T3 (en) | 2010-05-25 |
| ATE458515T1 (en) | 2010-03-15 |
| JP2004538043A (en) | 2004-12-24 |
| FR2822710A1 (en) | 2002-10-04 |
| US7001362B2 (en) | 2006-02-21 |
| EP1372766B1 (en) | 2010-02-24 |
| ES2338993T3 (en) | 2010-05-14 |
| PT1372766E (en) | 2010-05-25 |
| WO2002076534A1 (en) | 2002-10-03 |
| EP1372766A1 (en) | 2004-01-02 |
| FR2822710B1 (en) | 2004-04-02 |
| DE60235450D1 (en) | 2010-04-08 |
| US20040116871A1 (en) | 2004-06-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220328 |