US20060216172A1 - Peristaltic pump cartridge with tube standoff - Google Patents
Peristaltic pump cartridge with tube standoff Download PDFInfo
- Publication number
- US20060216172A1 US20060216172A1 US11/014,474 US1447404A US2006216172A1 US 20060216172 A1 US20060216172 A1 US 20060216172A1 US 1447404 A US1447404 A US 1447404A US 2006216172 A1 US2006216172 A1 US 2006216172A1
- Authority
- US
- United States
- Prior art keywords
- tubing
- cartridge
- pump
- cover plate
- length
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
-
- 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
- A61M1/72—Cassettes forming partially or totally the fluid circuit
-
- 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
- A61M1/82—Membrane pumps, e.g. bulbs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
- F04B43/0072—Special features particularities of the flexible members of tubular flexible members
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
Definitions
- the present invention relates to peristaltic pump cartridges and more specifically, to pump cartridges having a loop of tubing material for engagement with a peristaltic pump head.
- Peristaltic pump cartridges are well known in the art. Peristaltic pumps and the related pump cartridges for collecting aspirant from surgical sites are well known in many areas of surgery, including ophthalmic surgery.
- a peristaltic pump cartridge typically includes some sort of housing with one or more lengths of tube for engagement with a peristaltic pump roller head. Upon operation of the peristaltic pump head, aspirant fluid is then pumped from the surgical site through tubing of the cartridge and into a collection bag or reservoir.
- tubing and the pump cartridge it is very important for the tubing and the pump cartridge to properly engage with the peristaltic pump roller head, so that the tubing is completely pinched-off at intervals by the rollers of the pump head. If proper engagement of the cartridge tubing with the pump head does not occur, then little or no aspirant will be pumped from the surgical site into the collection bag.
- the first method is to manually thread the tubing between the head and the backing plate. This is somewhat cumbersome, time consuming, and inconvenient for a user.
- the second and third methods include the use of a cartridge that has a length of tubing exposed.
- the second method includes a threading member or finger that extends beyond the pump head, and as the pump head rotates, the finger threads the tubing onto the pump head. This requires a specially designed threading finger, but generally results in an easy to load pump.
- the third method includes a cartridge with a portion of the cartridge forming the backing plate.
- the cartridge is then urged toward the pump head.
- This method is also convenient for the user, but has a potential drawback in that the backing plate of the cartridge typically does not cooperate with the pump head over a sufficiently large radius. This relatively small radius of interaction can lead to unwanted pulsation and aspirant flow through the system.
- peristaltic pump does not use any backing plate at all. Instead, a cartridge with a loop of tubing is placed around a pump head and a cartridge holder is then moved away from the pump head until the tubing loop is sufficiently stretched, such that the rollers of the pump head pinch close the tubing without a backing plate.
- the extent to which the tubing must be stretched is a cause for concern.
- unwanted pulsation is likely to occur. This pulsation can result in dangerous and undesirable intraocular pressure in the eye and may also affect chamber stability during surgery.
- FIG. 1 is an elevation view of a peristaltic pump cartridge in accordance with the present invention
- FIG. 2 is a side elevation view of FIG. 1 ;
- FIG. 3 is a partial cut-away view of FIG. 1 taken along line 3 - 3 ;
- FIG. 4 is a partial cut-away view of FIG. 1 taken along line 4 - 4 ;
- FIG. 5 is an isometric perspective view of a peristaltic pump cartridge in accordance with the present invention without the tubing and other parts;
- FIG. 6 is a side elevation view of a peristaltic pump cartridge in accordance with the present invention engaged with a peristaltic pump head.
- FIG. 1 shows a peristaltic pump cartridge 10 , in accordance with the present invention.
- Cartridge 10 includes a housing 12 having a collection chamber or bag (not shown in this view) attached for holding aspirant from a surgical site.
- a length of tubing 14 connected to the housing 12 for engagement with a roller pump head is more particularly described in the above-referenced co-pending patent application.
- a cover plate 16 is connected to the housing 12 and oriented essentially parallel to the length of tubing 14 .
- At least one and preferably two standoff tabs 18 shown as dashed lines, are connected to the cover plate 16 .
- the standoff tabs 18 ensure that the length of tubing 14 is at least a known distance from the cover plate 16 to facilitate engagement of the tubing 14 with the pump roller head.
- the housing and cover plate are molded and formed of ABS (acrylonitrile butadiene styrene) thermoplastic resin. It is noted that because of the design of the pump head it does not matter if the tubing 14 becomes bent away from cover plate 16 because tubing will still properly engage with the pump head. The standoff tabs 18 ensure that the tubing 14 is sufficiently surrounding the pump head when the cartridge 10 is loaded into the pump.
- ABS acrylonitrile butadiene styrene
- the pump cartridge preferably includes a pressure transducer 20 , irrigation fluid tubing 22 , and fluid vent tubing 24 , as well as handle 26 .
- pump cartridge 10 is shown from the side without a collection bag attached.
- a collection bag is hung from a tab or hook 32 and connected to the tubing loop 14 via nipple 34 .
- Fitment 28 connects fluid vent line 24 and irrigation line 22 to irrigation source line 30 .
- standoff tabs 18 ensure that tubing 14 stands up essentially parallel to cover plate 16 , so that proper engagement is made with a peristaltic pump roller head. It has been experienced that without such standoff tabs 18 during other handling, tube 14 may be displaced towards cover plate 16 , such as that shown by dashed line 36 .
- FIG. 3 shows a partial cut-away view detail of standoff tabs 18 taken along line 3 - 3 of FIG. 1 .
- tab 18 is connected to cover plate 16 either by molding or by some other well known attachment mechanism, such as adhesive or connection means.
- FIG. 4 is another partial cut-away detail, showing standoff tab 18 connected to cover plate 16 and holding tube 14 in its proper location.
- tabs 18 preferably include a concave surface 38 for mating with the curvature of tubing 14 to ensure that the tubing 14 seats against tabs 18 .
- the length of tubing 14 includes a first end connected to an inlet 40 and a second end connected through outlet 34 to a collection chamber, not shown.
- FIG. 5 shows a perspective view with the tubing 14 , 22 , and 24 removed, as well as the pressure transducer 20 removed.
- FIG. 5 clearly shows standoff tabs 18 connected against cover plate 16 , as well as the concave surface 38 .
- FIG. 6 is a side elevation view, essentially the same as that shown in FIG. 2 , with the addition of a partial view of a pump roller head 42 connected to the tubing 14 .
- the addition of the standoff tabs 18 help to ensure that tubing 14 remains properly oriented for engagement with pump roller head 42 .
Abstract
Description
- 1. Field of the Invention
- The present invention relates to peristaltic pump cartridges and more specifically, to pump cartridges having a loop of tubing material for engagement with a peristaltic pump head.
- 2. Description of Related Art
- Peristaltic pump cartridges are well known in the art. Peristaltic pumps and the related pump cartridges for collecting aspirant from surgical sites are well known in many areas of surgery, including ophthalmic surgery.
- Typically, a peristaltic pump cartridge includes some sort of housing with one or more lengths of tube for engagement with a peristaltic pump roller head. Upon operation of the peristaltic pump head, aspirant fluid is then pumped from the surgical site through tubing of the cartridge and into a collection bag or reservoir.
- It is very important for the tubing and the pump cartridge to properly engage with the peristaltic pump roller head, so that the tubing is completely pinched-off at intervals by the rollers of the pump head. If proper engagement of the cartridge tubing with the pump head does not occur, then little or no aspirant will be pumped from the surgical site into the collection bag.
- There have been many prior attempts to ensure that the tubing is properly engaged with the pump head. Getting the tubing between the pump head and a backing plate and to be properly engaged has typically been achieved in one of three ways. The first method is to manually thread the tubing between the head and the backing plate. This is somewhat cumbersome, time consuming, and inconvenient for a user. The second and third methods include the use of a cartridge that has a length of tubing exposed. The second method includes a threading member or finger that extends beyond the pump head, and as the pump head rotates, the finger threads the tubing onto the pump head. This requires a specially designed threading finger, but generally results in an easy to load pump. The third method includes a cartridge with a portion of the cartridge forming the backing plate. The cartridge is then urged toward the pump head. This method is also convenient for the user, but has a potential drawback in that the backing plate of the cartridge typically does not cooperate with the pump head over a sufficiently large radius. This relatively small radius of interaction can lead to unwanted pulsation and aspirant flow through the system.
- Yet another prior art peristaltic pump does not use any backing plate at all. Instead, a cartridge with a loop of tubing is placed around a pump head and a cartridge holder is then moved away from the pump head until the tubing loop is sufficiently stretched, such that the rollers of the pump head pinch close the tubing without a backing plate. The extent to which the tubing must be stretched is a cause for concern. Also, without a backing plate, unwanted pulsation is likely to occur. This pulsation can result in dangerous and undesirable intraocular pressure in the eye and may also affect chamber stability during surgery.
- Yet another inventive peristaltic pump system has been disclosed and is commonly assigned to Bausch & Lomb Incorporated. This inventive pump head was described in U.S. patent application Ser. No. 10/673,969 filed on 29 Sep. 2003, and is entitled “A Peristaltic Pump Cartridge Including An Aspirant Collection Bag For Use In Ophthalmic Surgery”. This application is hereby incorporated in its entirety by reference and describes in detail the operation of the peristaltic pump and the related cartridge. This peristaltic pump includes a moveable pump head which drops down, such that the loop of tubing for use with the pump head surrounds the pump head and then the pump head is then moved upwardly to engage the loop of material against the backing plate. This system requires that the loop of tubing material be in a relatively precise known location in order for the tubing material to properly engage with the pump head.
- Therefore it would be desirable to have a feature of the cartridge which ensures the alignment of the tubing loop of the cartridge with the roller pump head.
-
FIG. 1 is an elevation view of a peristaltic pump cartridge in accordance with the present invention; -
FIG. 2 is a side elevation view ofFIG. 1 ; -
FIG. 3 is a partial cut-away view ofFIG. 1 taken along line 3-3; -
FIG. 4 is a partial cut-away view ofFIG. 1 taken along line 4-4; -
FIG. 5 is an isometric perspective view of a peristaltic pump cartridge in accordance with the present invention without the tubing and other parts; and -
FIG. 6 is a side elevation view of a peristaltic pump cartridge in accordance with the present invention engaged with a peristaltic pump head. -
FIG. 1 shows aperistaltic pump cartridge 10, in accordance with the present invention.Cartridge 10 includes ahousing 12 having a collection chamber or bag (not shown in this view) attached for holding aspirant from a surgical site. A length oftubing 14 connected to thehousing 12 for engagement with a roller pump head is more particularly described in the above-referenced co-pending patent application. Acover plate 16 is connected to thehousing 12 and oriented essentially parallel to the length oftubing 14. At least one and preferably twostandoff tabs 18, shown as dashed lines, are connected to thecover plate 16. Thestandoff tabs 18 ensure that the length oftubing 14 is at least a known distance from thecover plate 16 to facilitate engagement of thetubing 14 with the pump roller head. Preferably the housing and cover plate are molded and formed of ABS (acrylonitrile butadiene styrene) thermoplastic resin. It is noted that because of the design of the pump head it does not matter if thetubing 14 becomes bent away fromcover plate 16 because tubing will still properly engage with the pump head. Thestandoff tabs 18 ensure that thetubing 14 is sufficiently surrounding the pump head when thecartridge 10 is loaded into the pump. - While the operation of the peristaltic pump and cartridge is more particularly described in the above-referenced co-pending patent application, the pump cartridge preferably includes a
pressure transducer 20,irrigation fluid tubing 22, andfluid vent tubing 24, as well ashandle 26. - Referring to
FIG. 2 ,pump cartridge 10 is shown from the side without a collection bag attached. Typically, a collection bag is hung from a tab orhook 32 and connected to thetubing loop 14 via nipple 34. Fitment 28 connectsfluid vent line 24 andirrigation line 22 toirrigation source line 30. As can be easily seen,standoff tabs 18 ensure thattubing 14 stands up essentially parallel to coverplate 16, so that proper engagement is made with a peristaltic pump roller head. It has been experienced that withoutsuch standoff tabs 18 during other handling,tube 14 may be displaced towardscover plate 16, such as that shown by dashedline 36. Iftubing 14 is displaced, such as shown by dashedline 36, then a pump roller head will not engage the tubing and the pumping system will not operate. This simple and elegant solution of providing thestandoff tabs 18 has been shown to provide a proper standoff distance to ensure thattubing 14 engages with a pump roller head when inserted into a pump system. -
FIG. 3 shows a partial cut-away view detail ofstandoff tabs 18 taken along line 3-3 ofFIG. 1 . As can be seen,tab 18 is connected tocover plate 16 either by molding or by some other well known attachment mechanism, such as adhesive or connection means. -
FIG. 4 is another partial cut-away detail, showingstandoff tab 18 connected tocover plate 16 and holdingtube 14 in its proper location. As can best be seen inFIG. 4 ,tabs 18 preferably include aconcave surface 38 for mating with the curvature oftubing 14 to ensure that thetubing 14 seats againsttabs 18. Referring back toFIG. 1 , the length oftubing 14 includes a first end connected to aninlet 40 and a second end connected throughoutlet 34 to a collection chamber, not shown. -
FIG. 5 shows a perspective view with thetubing pressure transducer 20 removed.FIG. 5 clearly showsstandoff tabs 18 connected againstcover plate 16, as well as theconcave surface 38. -
FIG. 6 is a side elevation view, essentially the same as that shown inFIG. 2 , with the addition of a partial view of apump roller head 42 connected to thetubing 14. As can be seen, iftubing 14 were in its position shown by dashedline 36, engagement with thepump roller head 42 would be impossible. Therefore, the addition of thestandoff tabs 18 help to ensure thattubing 14 remains properly oriented for engagement withpump roller head 42. - Thus has been described a simple, elegant, and inexpensive manner to ensure the proper alignment of peristaltic pump cartridge tubing with a peristaltic pump roller head. Other embodiments and variations of the embodiment described above may occur to those skilled in the art and still be within the scope of the present invention.
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/014,474 US20060216172A1 (en) | 2004-12-16 | 2004-12-16 | Peristaltic pump cartridge with tube standoff |
PCT/US2005/045014 WO2006065790A1 (en) | 2004-12-16 | 2005-12-13 | Peristaltic pump cartridge with tube standoff |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/014,474 US20060216172A1 (en) | 2004-12-16 | 2004-12-16 | Peristaltic pump cartridge with tube standoff |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060216172A1 true US20060216172A1 (en) | 2006-09-28 |
Family
ID=36095922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/014,474 Abandoned US20060216172A1 (en) | 2004-12-16 | 2004-12-16 | Peristaltic pump cartridge with tube standoff |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060216172A1 (en) |
WO (1) | WO2006065790A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110186143A1 (en) * | 2010-02-03 | 2011-08-04 | Seiko Epson Corporation | Fluid transporter |
US9713660B2 (en) | 2012-12-21 | 2017-07-25 | Alcon Research, Ltd. | Cassette clamp mechanism |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2009424C2 (en) | 2012-09-06 | 2014-03-10 | D O R C Dutch Ophthalmic Res Ct International B V | Irrigation/aspiration system, cartridge, pump unit, surgical machine, method for controlling. |
EP3318290B1 (en) | 2016-11-03 | 2020-04-22 | This AG | Cassette for ophthalmological apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4713051A (en) * | 1985-05-21 | 1987-12-15 | Coopervision, Inc. | Cassette for surgical irrigation and aspiration and sterile package therefor |
US4798580A (en) * | 1987-04-27 | 1989-01-17 | Site Microsurgical Systems, Inc. | Disposable peristaltic pump cassette system |
US5106366A (en) * | 1990-03-08 | 1992-04-21 | Nestle, S.A. | Medical fluid cassette and control system |
US6561999B1 (en) * | 2000-09-29 | 2003-05-13 | Alcon Universal Ltd. | Surgical cassette and consumables for combined ophthalmic surgical procedure |
US20030190244A1 (en) * | 1999-11-10 | 2003-10-09 | Davis Sherman G. | Surgical cassette |
US20050070871A1 (en) * | 2003-09-29 | 2005-03-31 | Lawton Bruce Edward | Peristaltic pump cartridge including an aspirant collection bag for use in ophthalmic surgery |
-
2004
- 2004-12-16 US US11/014,474 patent/US20060216172A1/en not_active Abandoned
-
2005
- 2005-12-13 WO PCT/US2005/045014 patent/WO2006065790A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4713051A (en) * | 1985-05-21 | 1987-12-15 | Coopervision, Inc. | Cassette for surgical irrigation and aspiration and sterile package therefor |
US4798580A (en) * | 1987-04-27 | 1989-01-17 | Site Microsurgical Systems, Inc. | Disposable peristaltic pump cassette system |
US5106366A (en) * | 1990-03-08 | 1992-04-21 | Nestle, S.A. | Medical fluid cassette and control system |
US20030190244A1 (en) * | 1999-11-10 | 2003-10-09 | Davis Sherman G. | Surgical cassette |
US6561999B1 (en) * | 2000-09-29 | 2003-05-13 | Alcon Universal Ltd. | Surgical cassette and consumables for combined ophthalmic surgical procedure |
US20050070871A1 (en) * | 2003-09-29 | 2005-03-31 | Lawton Bruce Edward | Peristaltic pump cartridge including an aspirant collection bag for use in ophthalmic surgery |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110186143A1 (en) * | 2010-02-03 | 2011-08-04 | Seiko Epson Corporation | Fluid transporter |
US9713660B2 (en) | 2012-12-21 | 2017-07-25 | Alcon Research, Ltd. | Cassette clamp mechanism |
Also Published As
Publication number | Publication date |
---|---|
WO2006065790A1 (en) | 2006-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BAUSCH & LOMB INCORPORATED, NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FITZGERALD, MATTHEW J.;REEL/FRAME:015864/0494 Effective date: 20050304 |
|
AS | Assignment |
Owner name: CREDIT SUISSE, NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNORS:BAUSCH & LOMB INCORPORATED;B&L CRL INC.;B&L CRL PARTNERS L.P.;AND OTHERS;REEL/FRAME:020122/0722 Effective date: 20071026 Owner name: CREDIT SUISSE,NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNORS:BAUSCH & LOMB INCORPORATED;B&L CRL INC.;B&L CRL PARTNERS L.P.;AND OTHERS;REEL/FRAME:020122/0722 Effective date: 20071026 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: BAUSCH & LOMB INCORPORATED, NEW YORK Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH;REEL/FRAME:028726/0142 Effective date: 20120518 |