US20050234394A1 - Dual cylinder vacuum pump for medical aspiration system - Google Patents
Dual cylinder vacuum pump for medical aspiration system Download PDFInfo
- Publication number
- US20050234394A1 US20050234394A1 US11/088,318 US8831805A US2005234394A1 US 20050234394 A1 US20050234394 A1 US 20050234394A1 US 8831805 A US8831805 A US 8831805A US 2005234394 A1 US2005234394 A1 US 2005234394A1
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- Prior art keywords
- cylinder
- pump
- valve
- plunger
- fluid communication
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Classifications
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- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/80—Suction pumps
- A61M1/81—Piston pumps, e.g. syringes
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/77—Suction-irrigation systems
- A61M1/772—Suction-irrigation systems operating alternately
Definitions
- the present invention relates to a vacuum pump for a medical aspiration system.
- Ophthalmic procedures are typically performed with instruments that have a tip located at the distal end of a handpiece.
- the handpiece is held by a surgeon who inserts the tip into the inner ocular chamber of an eye.
- the surgeon may remove a cataracteous lens, or reattach a retina with the instrument.
- irrigation fluid is introduced into the eye to maintain the ocular pressure of the anterior chamber.
- the handpiece tip is coupled to an aspiration system that pulls the irrigation fluid and possibly tissue out of the anterior chamber.
- the tissue and irrigation fluid flow through an inner channel in the tip.
- the aspiration system includes a pump coupled to an aspiration tube.
- the aspiration tube is connected to an outlet port of the handpiece.
- Most aspiration pumps are of the peristaltic type because the pump behavior is predictable.
- a peristaltic pump essentially pushes the air/fluid within the aspiration tube to create a vacuum pressure within the tube.
- the operation of a peristaltic pump creates surges in the pressure within the system. Pressure surges can be undesirable when performing delicate procedures such as retinal reattachment.
- Venturi pumps do not creates pressure surges and are thus typically used in delicate ophthalmic procedures.
- Commercially available venturi pumps require a tank of compressed nitrogen gas. It is generally undesirable to have a pressurized gas tank in an operating environment. Additionally, venturi pumps are energy inefficient in creating a vacuum.
- a pump for a medical aspiration system includes a housing with an input port, an output port, a first cylinder and a second cylinder.
- a motor assembly of the pump moves a first plunger within the first cylinder and a second plunger within a second cylinder.
- the pump includes valve assemblies that control fluid communication between the input/output ports and the cylinders.
- FIG. 1 is a schematic of an embodiment of a medical system
- FIG. 2 is an illustration of a dual cylinder pump of the medical system.
- a dual cylinder pump that is used to create a vacuum in an aspiration tube of a medical system.
- the pump includes a first plunger that moves within a first cylinder and a second plunger that moves within a second cylinder. Movement of the plungers is controlled by a motor assembly.
- the pump includes valves that control the flow of fluid into and out of the cylinders so that one cylinder is pulling fluid from the aspiration tube while the other cylinder is discharging fluid. In this manner the pump is continuously pulling vacuum, thereby preventing vacuum surges found in peristaltic pumps of the prior art. Additionally, the pump is relatively energy efficient and does not require a separate nitrogen tank as required by commercially available venturi pumps of the prior art.
- the pump can be constructed as a cartridge that can be removed and disposed.
- FIG. 1 shows an embodiment of a medical system 10 of the present invention.
- the system 10 may be used by a surgeon to perform ophthalmic medical procedures such as cataract lens removal, or retina reattachment.
- the system 10 may include an instrument 12 that is coupled to an aspiration system 14 .
- the instrument 12 may include a tip 16 that extends from a handpiece 18 and can be held by a surgeon.
- the tip 16 can be inserted into the eye of a patient.
- the aspiration system 14 may include an aspiration tube(s) 20 that is coupled to the instrument 12 .
- the aspiration tube 20 is connected to a vacuum pump 22 and a collection canister 24 .
- the vacuum pump 22 creates a vacuum pressure within the aspiration tube 20 and a flow of fluid from the instrument 12 to the canister 24 .
- the aspiration system 14 can pull emulsified tissue and fluid from the instrument 12 and into the canister 29 .
- the system 10 may include a controller 26 that is connected to the instrument 12 and the vacuum pump 22 .
- the system 10 may further have a control device such as a foot pedal 28 that is connected to the controller 26 .
- the surgeon can control the instrument 12 and/or the pump 22 thru the foot pedal 28 .
- the controller 26 may include a processor, memory, etc. (not shown) that can operate the pump 22 in synchronization with the instrument 12 .
- the foot pedal 28 is shown as being connected to the controller 26 , the foot pedal 28 may be connected directly to the pump 22 and/or instrument 12 .
- FIG. 2 shows an embodiment of the vacuum pump 22 .
- the pump 22 may include a housing 30 that has a first cylinder 32 and a second cylinder 34 .
- the housing 30 also includes an input port 36 and an output port 38 .
- the input port 36 includes channels 40 and 42 in fluid communication with the first 32 and second cylinders 34 , respectively.
- the pump 22 may have a first valve assembly 44 that controls the flow of fluid between the cylinders 32 and 34 and a manifold tube 46 .
- the manifold tube 46 is connected to the aspiration tube 20 of the aspiration system 14 .
- the first valve assembly 44 may include a first input valve 48 that controls the flow of fluid into the first cylinder 32 and a second input valve 50 that controls the flow of fluid into the second cylinder 34 .
- the pump 22 may further have a second valve assembly 52 that controls the flow of fluid between the cylinders 32 and 34 and outlet lines 54 and 56 of the output port.
- the second valve assembly 52 may include a first output valve 58 that controls the flow of fluid from the first cylinder 32 and a second output valve 60 that controls the flow of fluid from the second cylinder 34 .
- the valves 48 , 50 , 58 and 60 may be controlled actuators or motors that are connected to and controlled by the controller 26 shown in FIG. 1 .
- the pump 22 may include pressure transducers 62 and 64 that sense the pressure within the first 32 and second 34 cylinders, respectively.
- the pressure transducers 62 and 64 can be connected to the controller 26 shown in FIG. 1 , and provide pressure feedback information that can be used in a feedback control loop of the pump 22 .
- the pump 22 includes a first plunger 66 that moves within the first cylinder 32 and a second plunger 68 that moves within the second cylinder 34 .
- the plungers 66 and 68 are moved by a motor assembly 70 .
- the motor assembly 70 may include a first motor 72 that moves the first plunger 66 and a second motor 74 that moves the second plunger 68 .
- the motors 72 and 74 may move the plungers 66 and 68 out of phase relative to each other.
- the plungers 66 and 68 may move 180 degrees out of phase relative to each other.
- the motors 72 and 74 may be connected to the controller 26 which controls the timing and phase of the plungers 66 and 68 . Although two motors are shown and described, it is to be understood that the plungers could be coupled to a single motor.
- the motors 72 and 74 may be attached to the plungers 66 and 68 by couplers 76 and 78 .
- the couplers 76 and 68 may be of the quick disconnect type so that the plungers 66 and 68 , and housing 30 can be detached from the motor assembly 70 . This allows the housing 30 and plungers 66 and 68 to be packaged as a cartridge that can be detached after a medical procedure.
- the plungers 66 and 68 may be of the syringe type that can be readily discarded and replaced.
- the housing 30 can be sterilized for reuse in the system 10 .
- the valve actuators and pressure transducers may also be attached to the housing 30 in a sealed and readily detachable manner so that these components do not have to be sterilized after each procedure.
- the controller 26 may control the motors 72 and 74 and the valve assemblies 44 and 52 in the following manner.
- the first input valve 48 may be opened to provide fluid communication between the manifold tube 46 and the first cylinder 32 .
- the second input valve 50 is closed.
- the first motor 72 may pull the first plunger 66 in a direction indicated by the arrow. Movement of the plunger 66 pulls fluid into the first cylinder 32 .
- the first input valve 48 When the first plunger 66 reaches an end of travel the first input valve 48 is closed and the second input valve 50 is opened.
- the second motor 74 then pulls the second plunger 68 to draw fluid into the second cylinder 34 .
- the first motor 72 pushes the first plunger 66 .
- the first output valve 58 is opened so that the fluid within the first cylinder 32 is pushed out of the pump 22 .
- the motors and valves are operated so that one of the cylinders is pulling in fluid while the other cylinder is pushing out fluid. In this manner a continuous vacuum is created in the aspiration tube. There are not sudden surges as found in prior art peristaltic pumps.
- the second plunger 68 may begin to pull a vacuum in cylinder 34 as the first plunger 66 nears the end of travel in cylinder 32 .
- Valve 50 may be closed during movement of the second plunger until the transducers 62 and 64 sense the same pressure wherein valve 50 is opened and valve 48 is closed.
- the pump 22 may have other value arrangements.
- the pump 22 may have a single four-way valve.
Abstract
A dual cylinder pump that is used to create a vacuum in an aspiration tube of a medical system. The pump includes a first plunger that moves within a first cylinder and a second plunger that moves within a second cylinder. Movement of the plungers is controlled by a motor assembly. The pump includes valves that control the flow of fluid into and out of the cylinders so that one cylinder is pulling fluid from the aspiration tube while the other cylinder is discharging fluid. The pump housing can be constructed as a cartridge that can be removed and readily sterilized.
Description
- This application claims priority to provisional application No. 556,963 filed on Mar. 26, 2004.
- 1. Field of the Invention
- The present invention relates to a vacuum pump for a medical aspiration system.
- 2. Background Information
- Ophthalmic procedures are typically performed with instruments that have a tip located at the distal end of a handpiece. The handpiece is held by a surgeon who inserts the tip into the inner ocular chamber of an eye. By way of example, the surgeon may remove a cataracteous lens, or reattach a retina with the instrument.
- During a procedure, irrigation fluid is introduced into the eye to maintain the ocular pressure of the anterior chamber. The handpiece tip is coupled to an aspiration system that pulls the irrigation fluid and possibly tissue out of the anterior chamber. The tissue and irrigation fluid flow through an inner channel in the tip.
- The aspiration system includes a pump coupled to an aspiration tube. The aspiration tube is connected to an outlet port of the handpiece. Most aspiration pumps are of the peristaltic type because the pump behavior is predictable. A peristaltic pump essentially pushes the air/fluid within the aspiration tube to create a vacuum pressure within the tube. The operation of a peristaltic pump creates surges in the pressure within the system. Pressure surges can be undesirable when performing delicate procedures such as retinal reattachment.
- Some aspiration systems contain a venturi type pump. Venturi pumps do not creates pressure surges and are thus typically used in delicate ophthalmic procedures. Commercially available venturi pumps require a tank of compressed nitrogen gas. It is generally undesirable to have a pressurized gas tank in an operating environment. Additionally, venturi pumps are energy inefficient in creating a vacuum.
- A pump for a medical aspiration system. The pump includes a housing with an input port, an output port, a first cylinder and a second cylinder. A motor assembly of the pump moves a first plunger within the first cylinder and a second plunger within a second cylinder. The pump includes valve assemblies that control fluid communication between the input/output ports and the cylinders.
-
FIG. 1 is a schematic of an embodiment of a medical system; -
FIG. 2 is an illustration of a dual cylinder pump of the medical system. - Disclosed is a dual cylinder pump that is used to create a vacuum in an aspiration tube of a medical system. The pump includes a first plunger that moves within a first cylinder and a second plunger that moves within a second cylinder. Movement of the plungers is controlled by a motor assembly. The pump includes valves that control the flow of fluid into and out of the cylinders so that one cylinder is pulling fluid from the aspiration tube while the other cylinder is discharging fluid. In this manner the pump is continuously pulling vacuum, thereby preventing vacuum surges found in peristaltic pumps of the prior art. Additionally, the pump is relatively energy efficient and does not require a separate nitrogen tank as required by commercially available venturi pumps of the prior art. The pump can be constructed as a cartridge that can be removed and disposed.
- Referring to the drawings more particularly by reference numbers,
FIG. 1 shows an embodiment of amedical system 10 of the present invention. Thesystem 10 may be used by a surgeon to perform ophthalmic medical procedures such as cataract lens removal, or retina reattachment. - The
system 10 may include aninstrument 12 that is coupled to anaspiration system 14. Theinstrument 12 may include atip 16 that extends from ahandpiece 18 and can be held by a surgeon. Thetip 16 can be inserted into the eye of a patient. - The
aspiration system 14 may include an aspiration tube(s) 20 that is coupled to theinstrument 12. Theaspiration tube 20 is connected to avacuum pump 22 and acollection canister 24. Thevacuum pump 22 creates a vacuum pressure within theaspiration tube 20 and a flow of fluid from theinstrument 12 to thecanister 24. Theaspiration system 14 can pull emulsified tissue and fluid from theinstrument 12 and into the canister 29. - The
system 10 may include acontroller 26 that is connected to theinstrument 12 and thevacuum pump 22. Thesystem 10 may further have a control device such as afoot pedal 28 that is connected to thecontroller 26. The surgeon can control theinstrument 12 and/or thepump 22 thru thefoot pedal 28. Thecontroller 26 may include a processor, memory, etc. (not shown) that can operate thepump 22 in synchronization with theinstrument 12. Although thefoot pedal 28 is shown as being connected to thecontroller 26, thefoot pedal 28 may be connected directly to thepump 22 and/orinstrument 12. -
FIG. 2 shows an embodiment of thevacuum pump 22. Thepump 22 may include ahousing 30 that has afirst cylinder 32 and asecond cylinder 34. Thehousing 30 also includes aninput port 36 and anoutput port 38. Theinput port 36 includeschannels second cylinders 34, respectively. - The
pump 22 may have afirst valve assembly 44 that controls the flow of fluid between thecylinders manifold tube 46. Themanifold tube 46 is connected to theaspiration tube 20 of theaspiration system 14. Thefirst valve assembly 44 may include afirst input valve 48 that controls the flow of fluid into thefirst cylinder 32 and asecond input valve 50 that controls the flow of fluid into thesecond cylinder 34. - The
pump 22 may further have asecond valve assembly 52 that controls the flow of fluid between thecylinders outlet lines second valve assembly 52 may include afirst output valve 58 that controls the flow of fluid from thefirst cylinder 32 and asecond output valve 60 that controls the flow of fluid from thesecond cylinder 34. Thevalves controller 26 shown inFIG. 1 . - The
pump 22 may includepressure transducers controller 26 shown inFIG. 1 , and provide pressure feedback information that can be used in a feedback control loop of thepump 22. - The
pump 22 includes afirst plunger 66 that moves within thefirst cylinder 32 and asecond plunger 68 that moves within thesecond cylinder 34. Theplungers motor assembly 70. Themotor assembly 70 may include afirst motor 72 that moves thefirst plunger 66 and asecond motor 74 that moves thesecond plunger 68. Themotors plungers plungers motors controller 26 which controls the timing and phase of theplungers - The
motors plungers couplers couplers plungers housing 30 can be detached from themotor assembly 70. This allows thehousing 30 andplungers plungers housing 30 can be sterilized for reuse in thesystem 10. The valve actuators and pressure transducers may also be attached to thehousing 30 in a sealed and readily detachable manner so that these components do not have to be sterilized after each procedure. - The
controller 26 may control themotors valve assemblies first input valve 48 may be opened to provide fluid communication between themanifold tube 46 and thefirst cylinder 32. Thesecond input valve 50 is closed. Thefirst motor 72 may pull thefirst plunger 66 in a direction indicated by the arrow. Movement of theplunger 66 pulls fluid into thefirst cylinder 32. - When the
first plunger 66 reaches an end of travel thefirst input valve 48 is closed and thesecond input valve 50 is opened. Thesecond motor 74 then pulls thesecond plunger 68 to draw fluid into thesecond cylinder 34. During this second plunger movement thefirst motor 72 pushes thefirst plunger 66. Thefirst output valve 58 is opened so that the fluid within thefirst cylinder 32 is pushed out of thepump 22. The motors and valves are operated so that one of the cylinders is pulling in fluid while the other cylinder is pushing out fluid. In this manner a continuous vacuum is created in the aspiration tube. There are not sudden surges as found in prior art peristaltic pumps. - To maintain a continuous vacuum level, the
second plunger 68 may begin to pull a vacuum incylinder 34 as thefirst plunger 66 nears the end of travel incylinder 32.Valve 50 may be closed during movement of the second plunger until thetransducers valve 50 is opened andvalve 48 is closed. - While certain exemplary embodiments have been described and shown in the accompanying drawings, it is to be understood that such embodiments are merely illustrative of and not restrictive on the broad invention, and that this invention not be limited to the specific constructions and arrangements shown and described, since various other modifications may occur to those ordinarily skilled in the art.
- For example, although
multiple values pump 22 may have other value arrangements. By way of example thepump 22 may have a single four-way valve.
Claims (20)
1. A pump for a medical aspiration system, comprising:
a housing that has an input port, an output port, a first cylinder and a second cylinder;
a first plunger that moves within said first cylinder;
a second plunger that moves within said second cylinder;
a motor assembly that moves said first and second plungers within said first and second cylinders, respectively; and,
a valve assembly that controls fluid communication between said first and second cylinders, and said input and output ports.
2. The pump of claim 1 , wherein said motor assembly includes a first motor connected to said first plunger by a first coupler and a second motor connected to said second plunger by a second coupler.
3. The pump of claim 1 , wherein said first and second plungers move out of phase relative to each other.
4. The pump of claim 1 , wherein said valve assembly includes a first input valve that controls fluid communication between said input port and said first cylinder and a second input valve that controls fluid communication between input port and said second cylinder.
5. The pump of claim 1 , wherein said valve assembly includes a first output valve that controls fluid communication between said first cylinder and said output port and a second output valve that controls fluid communication between said second cylinder and said output port.
6. A medical system, comprising:
an instrument;
an aspiration tube coupled to said handpiece;
a pump coupled to said aspiration tube, said pump including;
a housing that has an input port coupled to said aspiration tube, an output port coupled to said aspiration tube, a first cylinder and a second cylinder;
a first plunger that moves within said first cylinder;
a second plunger that moves within said second cylinder;
a motor assembly that moves said first and second plungers within said first and second cylinders, respectively;
a valve assembly that controls fluid communication between said first and second cylinders, and said input and output ports; and,
a control device coupled to said pump.
7. The system of claim 6 , wherein said motor assembly includes a first motor connected to said first plunger by a first coupler and a second motor connected to said second plunger by a second coupler.
8. The system of claim 6 , wherein said first and second plungers move out of phase relative to each other.
9. The system of claim 6 , wherein said valve assembly includes a first input valve that controls fluid communication between said input port and said first cylinder and a second input valve that controls fluid communication between input port and said second cylinder.
10. The system of claim 6 , wherein said valve assembly includes a first output valve that controls fluid communication between said first cylinder and said output port and a second output valve that controls fluid communication between said second cylinder and said output port.
11. The system of claim 6 , wherein said control device includes a foot pedal.
12. The system of claim 11 , further comprising a controller coupled to said foot pedal and said pump.
13. A method for creating a vacuum pressure within an aspiration tube of a medical system, comprising:
moving a first plunger within a first cylinder of a housing and moving a second plunger within a second cylinder of the housing; and,
switching at least one valve to create fluid communication between an input port of the housing and the first and second cylinders and a fluid communication between an output port of the housing and the first and second cylinders, so that movement of the first and second plungers create a vacuum within an aspiration tube coupled to the input port.
14. The method of claim 13 , wherein the first and second plungers move out of phase with each other.
15. The method of claim 13 , wherein the first plunger is moved by a first motor and the second plunger is moved by a second motor.
16. The method of claim 13 , wherein the vacuum pressure irrigates fluid from an eye.
17. A pump cartridge that can be connected to an aspiration tube of a medical system and a motor assembly of a pump, comprising:
a housing that has an input port that can be connected to the aspiration tube, an output port, a first cylinder and a second cylinder;
a first plunger that moves within said first cylinder and can be connected to said motor assembly;
a second plunger that moves within said second cylinder and can be connected to said motor assembly; and
a valve assembly that controls fluid communication between said first and second cylinders, and said input and output ports.
18. The pump cartridge of claim 17 , wherein said first and second plungers move out of phase relative to each other.
19. The pump cartridge of claim 17 , wherein said valve assembly includes a first input valve that controls fluid communication between said input port and said first cylinder and a second input valve that controls fluid communication between input port and said second cylinder.
20. The pump cartridge of claim 17 , wherein said valve assembly includes a first output valve that controls fluid communication between said first cylinder and said output port and a second output valve that controls fluid communication between said second cylinder and said output port.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/088,318 US20050234394A1 (en) | 2004-03-26 | 2005-03-23 | Dual cylinder vacuum pump for medical aspiration system |
CA2559205A CA2559205C (en) | 2004-03-26 | 2005-03-24 | Dual cylinder vacuum pump for medical aspiration system |
EP05729894.5A EP1735030B1 (en) | 2004-03-26 | 2005-03-24 | Dual cylinder vacuum pump for medical aspiration system |
JP2007505133A JP5191229B2 (en) | 2004-03-26 | 2005-03-24 | Double cylinder vacuum pump for medical suction system |
AU2005231690A AU2005231690B2 (en) | 2004-03-26 | 2005-03-24 | Dual cylinder vacuum pump for medical aspiration system |
PCT/US2005/009666 WO2005097229A2 (en) | 2004-03-26 | 2005-03-24 | Dual cylinder vacuum pump for medical aspiration system |
EP16183264.7A EP3112680B1 (en) | 2004-03-26 | 2005-03-24 | Dual cylinder vacuum pump for medical aspiration system |
US13/036,955 US8376983B2 (en) | 2004-03-26 | 2011-02-28 | Method for aspirating fluid utilizing a dual cylinder vacuum pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55696304P | 2004-03-26 | 2004-03-26 | |
US11/088,318 US20050234394A1 (en) | 2004-03-26 | 2005-03-23 | Dual cylinder vacuum pump for medical aspiration system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/036,955 Division US8376983B2 (en) | 2004-03-26 | 2011-02-28 | Method for aspirating fluid utilizing a dual cylinder vacuum pump |
Publications (1)
Publication Number | Publication Date |
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US20050234394A1 true US20050234394A1 (en) | 2005-10-20 |
Family
ID=35097212
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/088,318 Abandoned US20050234394A1 (en) | 2004-03-26 | 2005-03-23 | Dual cylinder vacuum pump for medical aspiration system |
US13/036,955 Active 2025-09-05 US8376983B2 (en) | 2004-03-26 | 2011-02-28 | Method for aspirating fluid utilizing a dual cylinder vacuum pump |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/036,955 Active 2025-09-05 US8376983B2 (en) | 2004-03-26 | 2011-02-28 | Method for aspirating fluid utilizing a dual cylinder vacuum pump |
Country Status (6)
Country | Link |
---|---|
US (2) | US20050234394A1 (en) |
EP (2) | EP1735030B1 (en) |
JP (1) | JP5191229B2 (en) |
AU (1) | AU2005231690B2 (en) |
CA (1) | CA2559205C (en) |
WO (1) | WO2005097229A2 (en) |
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US20100191178A1 (en) * | 2009-01-07 | 2010-07-29 | Enlighten Technologies, Inc. | Tissue removal devices, systems and methods |
CN104635776A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳科学仪器股份有限公司 | Wide-range pressure control system and method applied to vacuum equipment |
CN106030103A (en) * | 2014-04-17 | 2016-10-12 | 诺华股份有限公司 | Hydraulic pump for ophthalmic surgery |
US9649436B2 (en) | 2011-09-21 | 2017-05-16 | Bayer Healthcare Llc | Assembly method for a fluid pump device for a continuous multi-fluid delivery system |
US9999710B2 (en) | 2009-01-07 | 2018-06-19 | Med-Logics, Inc. | Tissue removal devices, systems and methods |
US10441460B2 (en) | 2013-04-26 | 2019-10-15 | Med-Logics, Inc. | Tissue removal devices, systems and methods |
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KR101762231B1 (en) * | 2014-12-05 | 2017-07-27 | 백정흔 | Medical fluid supplying apparatus |
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US10624785B2 (en) | 2016-01-30 | 2020-04-21 | Carl Zeiss Meditec Cataract Technology Inc. | Devices and methods for ocular surgery |
KR101706557B1 (en) * | 2016-05-09 | 2017-02-16 | (주)빅하우스 | Continuous reciprocating disinfectant feeder for pipelines |
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EP3917468B1 (en) | 2019-02-01 | 2023-11-15 | Carl Zeiss Meditec Cataract Technology Inc. | Ophthalmic cutting instruments having integrated aspiration pump |
WO2020236593A1 (en) | 2019-05-17 | 2020-11-26 | Carl Zeiss Meditec Cataract Technology Inc. | Ophthalmic cutting instruments having integrated aspiration pump |
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Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US805530A (en) * | 1905-03-27 | 1905-11-28 | John B Davis | Oil-pump. |
US1267088A (en) * | 1917-03-08 | 1918-05-21 | Major A Lane | Automobile-tire pump. |
US3597113A (en) * | 1968-01-26 | 1971-08-03 | Rhodiaceta | Process and device for the automatic continuous injection of an adjuvant into a fluid |
US3637330A (en) * | 1969-11-21 | 1972-01-25 | Aqua Chem Inc | Multichamber tubular diaphragm pump |
US3981620A (en) * | 1972-03-06 | 1976-09-21 | Waters Associates, Inc. | Pumping apparatus |
US4127360A (en) * | 1976-12-16 | 1978-11-28 | Carpenter Clarence W | Bumpless pump apparatus adjustable to meet slave system needs |
US4273261A (en) * | 1979-04-04 | 1981-06-16 | Krueger Wallace F | Metering apparatus |
US4543044A (en) * | 1983-11-09 | 1985-09-24 | E. I. Du Pont De Nemours And Company | Constant-flow-rate dual-unit pump |
US4734187A (en) * | 1986-06-13 | 1988-03-29 | William Visentin | Constant suction gradient pump for high performance liquid chromatography |
US4808077A (en) * | 1987-01-09 | 1989-02-28 | Hitachi, Ltd. | Pulsationless duplex plunger pump and control method thereof |
US5026255A (en) * | 1988-11-18 | 1991-06-25 | Clarence W. Carpenter | Pulseless pump apparatus having pressure crossover detector and control means |
US5492535A (en) * | 1994-04-06 | 1996-02-20 | Cordis Corporation | Hand-powered pumping apparatus for perfusion and other fluid catheterization procedures |
US5529463A (en) * | 1994-04-19 | 1996-06-25 | Cordis Corporation | Pumping apparatus for perfusion and other fluid catheterization procedures |
US5630706A (en) * | 1992-03-05 | 1997-05-20 | Yang; Frank J. | Multichannel pump apparatus with microflow rate capability |
US6113368A (en) * | 1997-06-28 | 2000-09-05 | Walter Hofmann Gmbh | Method for supplying liquids by means of a pump combination comprising of two single oscillating displacement pumps, and device for accomplishing the method |
US6264442B1 (en) * | 1999-01-28 | 2001-07-24 | Board Of Trustees Operating Michigan State University | High volume positive displacement pump with gear driven rotary valves |
US20010016708A1 (en) * | 1999-05-26 | 2001-08-23 | Kong Carl Cheung Tung | Fluid displacement pumps |
US6368080B1 (en) * | 1997-08-04 | 2002-04-09 | Anatole J. Sipin | Continuous fluid injection pump |
US20020151835A1 (en) * | 2000-02-01 | 2002-10-17 | Rod Ross | Pulsed vacuum cataract removal system |
US6511454B1 (en) * | 1998-05-29 | 2003-01-28 | Nidek Co., Ltd. | Irrigation/aspiration apparatus and irrigation/aspiration cassette therefore |
US6786885B2 (en) * | 1998-04-10 | 2004-09-07 | Milestone Scientific Inc | Pressure/force computer controlled drug delivery system with exit pressure control |
US7080792B2 (en) * | 1999-01-21 | 2006-07-25 | Sugino Machine Limited | Liquid pressurizing device |
US7278836B2 (en) * | 2002-10-01 | 2007-10-09 | Hammonds Technical Services, Inc. | Metering pump |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03173874A (en) * | 1989-09-29 | 1991-07-29 | Mitsubishi Kasei Corp | New heterocyclic compound |
CA2053938C (en) | 1990-10-26 | 1996-05-21 | Larry L. Hood | System and apparatus for controlling fluid flow to and from a surgical site |
JPH06142199A (en) * | 1992-10-30 | 1994-05-24 | Nemoto Kiyourindou:Kk | Automatic transfusion device |
JPH08121326A (en) * | 1994-10-26 | 1996-05-14 | Sumitomo Bakelite Co Ltd | Piston type aspiration pump |
JP3877874B2 (en) * | 1998-05-29 | 2007-02-07 | 株式会社ニデック | Perfusion suction device and perfusion suction cassette |
JP3205300B2 (en) * | 1998-06-01 | 2001-09-04 | プラス医科工業株式会社 | Medical aspirator |
US6083195A (en) * | 1998-10-15 | 2000-07-04 | Bausch & Lomb Surgical, Inc. | Ophthalmic aspiration system with selectable vent method |
DE10348832A1 (en) | 2003-09-30 | 2006-05-18 | Erbe Elektromedizin Gmbh | Conveying device for transporting sterile fluids through a reservoir to a surgical instrument comprises volumetric pumps, line and valve arrangements for connecting the pump with a source and the consumer, and drive units |
JP4807233B2 (en) | 2006-11-14 | 2011-11-02 | パナソニック電工株式会社 | Dredge equipment |
-
2005
- 2005-03-23 US US11/088,318 patent/US20050234394A1/en not_active Abandoned
- 2005-03-24 EP EP05729894.5A patent/EP1735030B1/en active Active
- 2005-03-24 AU AU2005231690A patent/AU2005231690B2/en active Active
- 2005-03-24 CA CA2559205A patent/CA2559205C/en active Active
- 2005-03-24 EP EP16183264.7A patent/EP3112680B1/en active Active
- 2005-03-24 JP JP2007505133A patent/JP5191229B2/en active Active
- 2005-03-24 WO PCT/US2005/009666 patent/WO2005097229A2/en active Application Filing
-
2011
- 2011-02-28 US US13/036,955 patent/US8376983B2/en active Active
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US805530A (en) * | 1905-03-27 | 1905-11-28 | John B Davis | Oil-pump. |
US1267088A (en) * | 1917-03-08 | 1918-05-21 | Major A Lane | Automobile-tire pump. |
US3597113A (en) * | 1968-01-26 | 1971-08-03 | Rhodiaceta | Process and device for the automatic continuous injection of an adjuvant into a fluid |
US3637330A (en) * | 1969-11-21 | 1972-01-25 | Aqua Chem Inc | Multichamber tubular diaphragm pump |
US3981620A (en) * | 1972-03-06 | 1976-09-21 | Waters Associates, Inc. | Pumping apparatus |
US4127360A (en) * | 1976-12-16 | 1978-11-28 | Carpenter Clarence W | Bumpless pump apparatus adjustable to meet slave system needs |
US4273261A (en) * | 1979-04-04 | 1981-06-16 | Krueger Wallace F | Metering apparatus |
US4543044A (en) * | 1983-11-09 | 1985-09-24 | E. I. Du Pont De Nemours And Company | Constant-flow-rate dual-unit pump |
US4734187A (en) * | 1986-06-13 | 1988-03-29 | William Visentin | Constant suction gradient pump for high performance liquid chromatography |
US4808077A (en) * | 1987-01-09 | 1989-02-28 | Hitachi, Ltd. | Pulsationless duplex plunger pump and control method thereof |
US5026255A (en) * | 1988-11-18 | 1991-06-25 | Clarence W. Carpenter | Pulseless pump apparatus having pressure crossover detector and control means |
US5630706A (en) * | 1992-03-05 | 1997-05-20 | Yang; Frank J. | Multichannel pump apparatus with microflow rate capability |
US5492535A (en) * | 1994-04-06 | 1996-02-20 | Cordis Corporation | Hand-powered pumping apparatus for perfusion and other fluid catheterization procedures |
US5529463A (en) * | 1994-04-19 | 1996-06-25 | Cordis Corporation | Pumping apparatus for perfusion and other fluid catheterization procedures |
US6113368A (en) * | 1997-06-28 | 2000-09-05 | Walter Hofmann Gmbh | Method for supplying liquids by means of a pump combination comprising of two single oscillating displacement pumps, and device for accomplishing the method |
US6368080B1 (en) * | 1997-08-04 | 2002-04-09 | Anatole J. Sipin | Continuous fluid injection pump |
US6786885B2 (en) * | 1998-04-10 | 2004-09-07 | Milestone Scientific Inc | Pressure/force computer controlled drug delivery system with exit pressure control |
US6511454B1 (en) * | 1998-05-29 | 2003-01-28 | Nidek Co., Ltd. | Irrigation/aspiration apparatus and irrigation/aspiration cassette therefore |
US7080792B2 (en) * | 1999-01-21 | 2006-07-25 | Sugino Machine Limited | Liquid pressurizing device |
US6264442B1 (en) * | 1999-01-28 | 2001-07-24 | Board Of Trustees Operating Michigan State University | High volume positive displacement pump with gear driven rotary valves |
US20010016708A1 (en) * | 1999-05-26 | 2001-08-23 | Kong Carl Cheung Tung | Fluid displacement pumps |
US20020151835A1 (en) * | 2000-02-01 | 2002-10-17 | Rod Ross | Pulsed vacuum cataract removal system |
US7278836B2 (en) * | 2002-10-01 | 2007-10-09 | Hammonds Technical Services, Inc. | Metering pump |
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US9999710B2 (en) | 2009-01-07 | 2018-06-19 | Med-Logics, Inc. | Tissue removal devices, systems and methods |
US9370611B2 (en) | 2009-01-07 | 2016-06-21 | Med-Logics, Inc. | Tissue removal devices, systems and methods |
US20100191178A1 (en) * | 2009-01-07 | 2010-07-29 | Enlighten Technologies, Inc. | Tissue removal devices, systems and methods |
US9649436B2 (en) | 2011-09-21 | 2017-05-16 | Bayer Healthcare Llc | Assembly method for a fluid pump device for a continuous multi-fluid delivery system |
US11896524B2 (en) | 2013-04-26 | 2024-02-13 | Med-Logics, Inc. | Tissue removal devices, systems and methods |
US10441460B2 (en) | 2013-04-26 | 2019-10-15 | Med-Logics, Inc. | Tissue removal devices, systems and methods |
CN104635776A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳科学仪器股份有限公司 | Wide-range pressure control system and method applied to vacuum equipment |
CN106030103A (en) * | 2014-04-17 | 2016-10-12 | 诺华股份有限公司 | Hydraulic pump for ophthalmic surgery |
EP3546744A1 (en) * | 2014-04-17 | 2019-10-02 | Novartis AG | Hydraulic pump for ophthalmic surgery |
EP3097309A4 (en) * | 2014-04-17 | 2018-04-04 | Novartis AG | Hydraulic pump for ophthalmic surgery |
US10537471B2 (en) | 2014-04-17 | 2020-01-21 | Novartis Ag | Hydraulic pump for ophthalmic surgery |
JP2017514058A (en) * | 2014-04-17 | 2017-06-01 | ノバルティス アーゲー | Hydraulic pump for ophthalmic surgery |
US10507319B2 (en) | 2015-01-09 | 2019-12-17 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
US11491318B2 (en) | 2015-01-09 | 2022-11-08 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
Also Published As
Publication number | Publication date |
---|---|
EP1735030A2 (en) | 2006-12-27 |
CA2559205A1 (en) | 2005-10-20 |
WO2005097229A3 (en) | 2009-04-02 |
JP5191229B2 (en) | 2013-05-08 |
US8376983B2 (en) | 2013-02-19 |
EP3112680B1 (en) | 2018-06-20 |
AU2005231690A1 (en) | 2005-10-20 |
EP3112680A1 (en) | 2017-01-04 |
US20110196320A1 (en) | 2011-08-11 |
WO2005097229A2 (en) | 2005-10-20 |
JP2008500843A (en) | 2008-01-17 |
EP1735030B1 (en) | 2016-08-17 |
AU2005231690B2 (en) | 2011-06-09 |
CA2559205C (en) | 2013-12-03 |
EP1735030A4 (en) | 2013-12-18 |
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Legal Events
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Owner name: ENLIGHTEN TECHNOLOGIES, INC., CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROSS, ROD;REEL/FRAME:016741/0323 Effective date: 20050608 |
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