US3597124A - Perastaltic pump - Google Patents

Perastaltic pump Download PDF

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Publication number
US3597124A
US3597124A US3597124DA US3597124A US 3597124 A US3597124 A US 3597124A US 3597124D A US3597124D A US 3597124DA US 3597124 A US3597124 A US 3597124A
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Prior art keywords
tube
tubing
pump
perastaltic
pumping
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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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Robert P Adams
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Cenco Medical Health Supply Corp
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Cenco Medical Health Supply Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/12Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1284Means for pushing the backing-plate against the tubular flexible member

Abstract

A perastaltic pump having a plurality of rollers mounted on a rotating pump wheel. Compressible tubing is supported by a tube support means which is manually operable to move the tubing into engagement with the rollers on the pumping wheel. Through the novel shape of the tubing support means, the tube may be easily installed and removed and functions to prevent tubing creep during operation.

Description

United States Patent H 1 3,597,124

[72] Inventor Robert P. Adams 328,472 10/1885 Faller 103/149 h -Y- 2,102,523 12/1937 Ferrara et al.- 103/149 [21] Appl. No. 855,214 2,899,906 8/1959 Becher et a1 103/149 [22] Filed Sept. 4,1969 3,421,447 l/l969 Jackson et a1. 103/149 [45] Patented Aug. 3, 1971 Assignee CencoM Ii I" H pp y Corporation Primary Examiner-Carlton R. Croyle Assistant Examiner-Wilbur J. Goodlin Chicago Attomey-Robert E. Wagner [54] PERASTALTIC PUMP 2 Claims, 7 Drawing Figs.

(52] U.S.C| 417/477 1 Fo4b 43/12 ABSTRACT: A perastaltic pump having a plurality of rollers [50] Field of Search 103/149; mounted on a rotating pump whee] Compressible tubing is 230/168; 91/57; 7/477, supported by a tube support means which is manually operable to move the tubing into engagement with the rollers on the [56] References CM pumping wheel. Throughthe novel shape of the tubing sup- UNITED STATES PATENTS port means, the tube may be easily installed and removed and 271,257 1/1883 Morton 103/ l 49 functions to prevent tubing creep during operation.

Patented Aug. 3, 1971 2 Sheets-Sheet 1 INVENTO/r" ROBERT P ADAMS BY I/ Q] mm) GM 6 gy ATTY Patented Aug. 3, 1971 2 Sheets-Sheet 2 INVENTOR ROBERT I? ADAMS BY MflWATT I X PERASTALTIC PUMP This invention relates to positive-type displacement pumps in general and, more specifically, is directed to a new and imroved perastaltic pump of the type commonly used in biological, medicinal, chemical, industrial, surgical, pathological and similar type uses.

Perastaltic pumps, as such, are well known in the art and have filled a definite need in the industry over the years where it is desirable to isolate and control the flow through flexible tubing. Since the tubing forms the path for the fluid pumped and is readily removed, it may be autoclaved as a unit or fresh sterilized tubing substituted when required for diverse uses or experiments.

One problem which has existed in the prior art is the difficulty encountered in installation and removal of the tubing in prior art designs. No doubt, this difficulty was a result of proposed solutions to the problem of preventing tubing creep during the pumping cycle. Various means have been proposed to eliminate these problems, however, prior to the present invention, no solution has been proposed which would offer a simple and satisfactory answer.

The present invention provides a new and improved tubemounting arrangement in a perastaltic pump which permits the tubing to be easily installed and removed while preventing tubing creep without the use of complicated clamps or the like. A relatively simple cam-biased tube support is mounted for angular movement to disengage the tubing from the rollers carried on the pump wheel and permits lateral removal and installation. The cam permits the pressure on the tubing to be adjusted to the requirements of the tubing used.

It is an object of this invention to provide a new and improved perastaltic pump.

It is a further object of this invention to provide a new and improved tube-mounting arrangement for a perastaltic pump which permits removal and installation of the tubing with unequalled ease.

It is a still further object of this invention to provide a new and improved perastaltic pump having a simplified cam-biased tubing support means which prevents tubing creep during the pumping operation.

Objects in addition to those heretofore stated will appear from the following description made in reference to the accompanying drawings wherein:

FIG. 1 is a front elevational view of the perastaltic pump of the present invention with the tubing in position for pumping;

FIG. 2 is a view similar to FIG. 1 with the tubing removed;

FIG. 3 is an enlarged fragmentary elevational view with the pumping wheel broken away to show the cooperation of the rollers with the tubing and tubing support means;

FIG. 4 is a fragmentary side elevational view taken generally along the line 4-4 of FIG. 1;

FIG. 5 is a fragmentary side elevational view taken generally along the line 5-5 of FIG. 1;

FIG. 6 is a free body front elevational view of the tubing support means; and

FIG. 7 is a cross-sectional view taken generally along the line 7-7 ofFIG. 6.

Referring now to FIG. 1, reference numeral 10 indicates the perastaltic pump of the present invention including a pump housing 11 and front cover 12 which mounts a tubing support means indicated generally at 13 and a pumping wheel indicated generally at 14. The cover 12 also forms a mounting area for a switch 17 for turning the pump on and off and which may also have an indicator light 18 included in the circuit for visually detecting the condition of the pump.

A tube is wrapped around the tubing support means 13 in a manner to be described in greater detail in connection with FIGS. 3 and 6. A manually operated cam means 16 is mounted at the lower end of the housing 12 and cooperates with the tubing support means in a manner to become apparent.

Referring now to FIGS. 3--5, it can be seen that the pump wheel 14 includes spaced-apart plates 20 and 21 held on a shaft 19 and mounting a plurality of rollers 23 for rotation about individual shafts 24. As the pumping wheel 14 rotates, the rollers 23 are brought into engagement with the tubing 15, compressing it in a manner similar to that shown in FIGS. 1 and 3 and forcing the liquid through the tube 15. This function will be described in greater detail when the operation of the pump is given.

Referring now to FIG. 6, it can be seen that the tube support means 13 includes a tube-mounting portion 30 which may be formed with a shallow groove 31 which may be generally arcuate in cross section, conforming generally to the shape of the tubing to be supported. When viewed along its length, the groove 31 extends at an angle 32 to a point where the tubesupporting surface is generally tangential to, however, spaced from the path generated by pumping wheel 14. The tangential portion 33 merges with a smooth arcuate tube-reversing portion 34 which changes the direction of the tube support slightly in excess of The tubing 15 then enters the arcuate portion 34 formed on a radius of curvature substantially congruent. to the path traced by the rollers 23 at their outer extremity. The arcuate portion 34 terminates smoothly, merging into a straight or linear section 35 for leading the tube 15 away from the pumping area to the discharge area where the flow is directed. Retaining lugs 36 and 37 cooperate with the straight or linear mounting sections 33 and 35, respectively, to maintain the tube 15 positioned in the groove 31 on the tubemounting means.

As shown in FIGS. 3 and 7, an elastomeric pad 38 may line at least a part of the arcuate groove 34 to back the tube 15 in the area where the rollers 23 are actively squeezing the tube to perform the pumping function. The tube support means 13 is mounted for pivoting movement on the face 12 of the pump housing 11 through a bearing bolt 40 or the equivalent.

As best seen in FIGS. 1-3, the cam means 16 consists of a knoblike member 41 mounted through a pivot pin 44 and having a handle 42 which extends well outwardly of the housing cover 12 for ease of operation by the lab assistant or technician. The knob 41 is provided with a slow rise cam surface 43 and fiat side 46. As the handle 42 is manually rotated, the cam surface 43 engages a cooperating or follower surface 45 on the tube support means 13 to move the tube support means about the pivot 40 and bring the tube 15 into engagement with the rollers 23. As shown in FIG. 2, when the cam is rotated to a position where the fiat side 46 opposes the cam follower 45, the tube support means moves to the condition shown to facilitate easy removal and installation of the tube.

Operation of the perastaltic pump of the present invention is easily accomplished. A tube partially filled with a liquid is placed on the tube support means 13. The cam means 16 is rotated to bring the tube support and installed tubing 15 into engagement with the rollers 23 as shown in FIGS. 1 and 35. The pumping wheel 14 may then be turned on via switch 17 for rotation or, if desired, the pumping wheel 14 can be started in advance of moving the tubing into engagement with the rollers 23. Pumping of the liquid will continue so long as a fluid supply is available at the intake.

If desired, the pumping rollers 23 may be increased in overall length and multiple tracks provided on a single tubing support means of the same shape as that shown with the grooves supporting the tubing being parallel to each other. In this manner, uniform engagement of the tubing and rollers is assured for uniform pumping. This is especially helpful in those situations where the liquid is to be withdrawn while another is to be added at an equal rate. Through the use of a tubing support means of the type described herein, the tubing may be readily installed and removed, eliminating the need for special clamps and the like. Tubing creep is positively prevented without any need to constrict the tubing. Lateral stability is provided by the elastomeric pad 38 in the pumping region. The simplified design provides for a relatively inexpensive pump which is capable of extremely high performance characteristics. In the present design, a motor available on the open market having a mechanical brake is used to permit microvolumes to be pumped at desired intervals when coupled to a suitable timer.

Upon a consideration of the foregoing, it will become obvious to those skilled in the art that various modifications may be made without departing from the invention embodied herein.

1 claim:

1. In a perastaltic-type pump having a pump housing supporting a pumping wheel, said pumping wheel having means for engagement with a flexible tube through which material is pumped, the improvement comprising a tube support means mounted on said housing for movement toward and away from said pumping wheel, a tubing support surface on said tube support means, said tubing support surface being of generally U- shaped configuration to reverse the direction of the tube thereon and thereby prevent tubing creep during operation of said pump, said tube support surface including an angular entrance portion merging into a substantially linear section radially spaced from said pumping wheel, said linear section merging with a generally U-shaped end portion leading into a smooth arcuate portion adapted to be moved to a position closely spaced from said pumping wheel and a generally linear portion exiting from said arcuate portion.

2. The improvement is perastaltic-type pumps as defined in claim 1 wherein lug means is provided an opposition to each of said linear sections, said lug means maintaining said tube in contact with said linear sections to prevent tube creep during operation of said pump.

Claims (2)

1. In a perastaltic-type pump having a pump housing supporting a pumping wheel, said pumping wheel having means for engagement with a flexible tube through which material is pumped, the improvement comprising a tube support means mounted on said housing for movement toward and away from said pumping wheel, a tubing support surface on said tube support means, said tubing support surface being of generally U-shaped configuration to reverse the direction of the tube thereon and thereby prevent tubing creep during operation of said pump, said tube support surface including an angular entrance portion merging into a substantially linear section radially spaced from said pumping wheel, said linear section merging with a generally U-shaped end portion leading into a smooth arcuate portion adapted to be moved to a position closely spaced from said pumping wheel and a generally linear portion exiting from said arcuate portion.
2. The improvement is perastaltic-type pumps as defined in claim 1 wherein lug means is provided an opposition to each of said linear sections, said lug means maintaining said tube in contact with said linear sections to prevent tube creep during operation of said pump.
US3597124A 1969-09-04 1969-09-04 Perastaltic pump Expired - Lifetime US3597124A (en)

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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723030A (en) * 1971-03-03 1973-03-27 Buchler Instr Division Peristaltic pump with stacked components
US3737251A (en) * 1971-02-08 1973-06-05 Alphamedics Mfg Cop Peristaltic pump
US3758239A (en) * 1970-12-23 1973-09-11 Ceskoslovenska Akademie Ved Controlled peristaltic pump
US3768934A (en) * 1971-03-22 1973-10-30 Tukiem Trust Apparatus for continuously conveying semisolid material by the action of circulating squeeze rollers on a flexible conduit for the material
US4012177A (en) * 1973-08-31 1977-03-15 Yakich Sam S Blood pump tube element
US4187057A (en) * 1978-01-11 1980-02-05 Stewart-Naumann Laboratories, Inc. Peristaltic infusion pump and disposable cassette for use therewith
US4256442A (en) * 1979-04-18 1981-03-17 Baxter Travenol Laboratories, Inc. Improved pressure plate movement system for a peristaltic pump
US4367479A (en) * 1980-11-03 1983-01-04 Exxon Research And Engineering Co. Method and apparatus for purging and/or priming an ink jet
US4376283A (en) * 1980-11-03 1983-03-08 Exxon Research And Engineering Co. Method and apparatus for using a disposable ink jet assembly in a facsimile system and the like
US4813855A (en) * 1987-06-26 1989-03-21 Tek-Aids Inc. Peristaltic pump
US4832584A (en) * 1988-01-15 1989-05-23 Corpak, Inc. Rotor for peristaltic pump
DE4138682A1 (en) * 1991-11-25 1993-05-27 Kaltenbach & Voigt Surgical dentistry appts. with pumped cooling medium supply - has pump having slider adjusting spacing between driven pump element and counter-bearing for replacement of cooling medium hose
US5256041A (en) * 1993-02-05 1993-10-26 Auto-Chlor System, Incorporated Peristaltic pump arrangement
US5340290A (en) * 1992-12-21 1994-08-23 Scilog, Inc. Double feed peristaltic pump
US5349825A (en) * 1993-05-18 1994-09-27 H. C. Duke & Son, Inc. System and method for dispensing a confectionery product using a peristaltic pump
US5403277A (en) * 1993-01-12 1995-04-04 Minnesota Mining And Manufacturing Company Irrigation system with tubing cassette
US5626563A (en) * 1993-01-12 1997-05-06 Minnesota Mining And Manufacturing Company Irrigation system with tubing cassette
US5630711A (en) * 1995-09-08 1997-05-20 Graymills Corporation Peristaltic pump having a loop-shaped tube path
US5746585A (en) * 1996-12-31 1998-05-05 Motorola, Inc. Peristaltic pump and method in a peristaltic pump for advancing a tube from a first position to a second position
EP1400691A2 (en) * 2002-09-23 2004-03-24 Ismatec SA, Laboratoriumstechnik Tube cassette for peristaltic pump
US20050053502A1 (en) * 2003-09-08 2005-03-10 Hewlett-Packard Development Company, L.P. Peristaltic pump
US20050069437A1 (en) * 2003-09-29 2005-03-31 Michael Mittelstein Peristaltic pump with a moveable pump head
US20050069419A1 (en) * 2003-09-29 2005-03-31 Cull Laurence J. Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery
US7066914B2 (en) 2000-07-12 2006-06-27 Bird Products Corporation Catheter having a tip with an elongated collar
US20060177328A1 (en) * 2005-02-10 2006-08-10 Novasys Medical, Inc. Peristaltic pump providing simplified loading and improved tubing kink resistance
US20070112340A1 (en) * 2000-10-02 2007-05-17 Novasys Medical, Inc. Apparatus and methods for treating female urinary incontinence
US20090125018A1 (en) * 2005-08-26 2009-05-14 Ams Research Corporation Heat Treatment System For Pelvic Support Tissue
US20100152647A1 (en) * 2008-12-17 2010-06-17 Smith & Nephew, Inc. Cartridge Assembly
US20100301071A1 (en) * 2007-12-05 2010-12-02 Bunn-O-Matic Corporation Peristaltic pump
US7976518B2 (en) 2005-01-13 2011-07-12 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US20110171052A1 (en) * 2007-09-27 2011-07-14 Curlin Medical Inc. Peristaltic pump assembly
US20110253746A1 (en) * 2010-04-15 2011-10-20 O'keefe Jr Edward L Wine dispensing system
US8403927B1 (en) 2012-04-05 2013-03-26 William Bruce Shingleton Vasectomy devices and methods
US20140135731A1 (en) * 2012-11-14 2014-05-15 Covidien Lp Feeding Set with Cassette and Related Methods Therefor
US20140144928A1 (en) * 2012-11-29 2014-05-29 Fair Oaks Farms Brands, L.L.C. Liquid Product Dispensing System and Method
US8740846B2 (en) 1996-09-20 2014-06-03 Verathon, Inc. Treatment of tissue in sphincters, sinuses, and orifices
US9023031B2 (en) 1997-08-13 2015-05-05 Verathon Inc. Noninvasive devices, methods, and systems for modifying tissues
US9028441B2 (en) 2011-09-08 2015-05-12 Corpak Medsystems, Inc. Apparatus and method used with guidance system for feeding and suctioning
US9102508B2 (en) 2011-02-01 2015-08-11 Edward L. O'Keefe Wine dispensing system
USD762850S1 (en) 2013-04-23 2016-08-02 Covidien Lp Cassette
US20160317733A1 (en) * 2007-09-13 2016-11-03 Fresenius Medical Care Holdings, Inc. Portable Dialysis Machine with Improved Reservoir Heating System

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Publication number Priority date Publication date Assignee Title
US271257A (en) * 1883-01-30 morton
US328472A (en) * 1885-10-20 Jacob falleb
US2102523A (en) * 1936-03-23 1937-12-14 Samuel J Ferrara Blood transfusion machine
US2899906A (en) * 1959-08-18 Roller pumps
US3421447A (en) * 1966-10-26 1969-01-14 Challenge Cook Bros Inc Fluid pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US271257A (en) * 1883-01-30 morton
US328472A (en) * 1885-10-20 Jacob falleb
US2899906A (en) * 1959-08-18 Roller pumps
US2102523A (en) * 1936-03-23 1937-12-14 Samuel J Ferrara Blood transfusion machine
US3421447A (en) * 1966-10-26 1969-01-14 Challenge Cook Bros Inc Fluid pump

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758239A (en) * 1970-12-23 1973-09-11 Ceskoslovenska Akademie Ved Controlled peristaltic pump
US3737251A (en) * 1971-02-08 1973-06-05 Alphamedics Mfg Cop Peristaltic pump
US3723030A (en) * 1971-03-03 1973-03-27 Buchler Instr Division Peristaltic pump with stacked components
US3768934A (en) * 1971-03-22 1973-10-30 Tukiem Trust Apparatus for continuously conveying semisolid material by the action of circulating squeeze rollers on a flexible conduit for the material
US4012177A (en) * 1973-08-31 1977-03-15 Yakich Sam S Blood pump tube element
US4187057A (en) * 1978-01-11 1980-02-05 Stewart-Naumann Laboratories, Inc. Peristaltic infusion pump and disposable cassette for use therewith
US4256442A (en) * 1979-04-18 1981-03-17 Baxter Travenol Laboratories, Inc. Improved pressure plate movement system for a peristaltic pump
US4376283A (en) * 1980-11-03 1983-03-08 Exxon Research And Engineering Co. Method and apparatus for using a disposable ink jet assembly in a facsimile system and the like
US4367479A (en) * 1980-11-03 1983-01-04 Exxon Research And Engineering Co. Method and apparatus for purging and/or priming an ink jet
US4813855A (en) * 1987-06-26 1989-03-21 Tek-Aids Inc. Peristaltic pump
US4832584A (en) * 1988-01-15 1989-05-23 Corpak, Inc. Rotor for peristaltic pump
DE4138682A1 (en) * 1991-11-25 1993-05-27 Kaltenbach & Voigt Surgical dentistry appts. with pumped cooling medium supply - has pump having slider adjusting spacing between driven pump element and counter-bearing for replacement of cooling medium hose
US5340290A (en) * 1992-12-21 1994-08-23 Scilog, Inc. Double feed peristaltic pump
US5403277A (en) * 1993-01-12 1995-04-04 Minnesota Mining And Manufacturing Company Irrigation system with tubing cassette
US5626563A (en) * 1993-01-12 1997-05-06 Minnesota Mining And Manufacturing Company Irrigation system with tubing cassette
US5628731A (en) * 1993-01-12 1997-05-13 Minnesota Mining And Manufacturing Company Irrigation system with tubing cassette
US5256041A (en) * 1993-02-05 1993-10-26 Auto-Chlor System, Incorporated Peristaltic pump arrangement
US5349825A (en) * 1993-05-18 1994-09-27 H. C. Duke & Son, Inc. System and method for dispensing a confectionery product using a peristaltic pump
US5630711A (en) * 1995-09-08 1997-05-20 Graymills Corporation Peristaltic pump having a loop-shaped tube path
US5897300A (en) * 1995-09-08 1999-04-27 Graymills Corporation Quick-release bolt for use with pump housing
US8740846B2 (en) 1996-09-20 2014-06-03 Verathon, Inc. Treatment of tissue in sphincters, sinuses, and orifices
US5746585A (en) * 1996-12-31 1998-05-05 Motorola, Inc. Peristaltic pump and method in a peristaltic pump for advancing a tube from a first position to a second position
US9023031B2 (en) 1997-08-13 2015-05-05 Verathon Inc. Noninvasive devices, methods, and systems for modifying tissues
US7066914B2 (en) 2000-07-12 2006-06-27 Bird Products Corporation Catheter having a tip with an elongated collar
US8968284B2 (en) 2000-10-02 2015-03-03 Verathon Inc. Apparatus and methods for treating female urinary incontinence
US20070112340A1 (en) * 2000-10-02 2007-05-17 Novasys Medical, Inc. Apparatus and methods for treating female urinary incontinence
US8177781B2 (en) 2000-10-02 2012-05-15 Novasys Medical, Inc. Apparatus and methods for treating female urinary incontinence
US8465482B2 (en) 2000-10-02 2013-06-18 Verathon, Inc. Apparatus and methods for treating female urinary incontinence
EP1400691A3 (en) * 2002-09-23 2005-09-14 Ismatec SA, Laboratoriumstechnik Tube cassette for peristaltic pump
US20040057856A1 (en) * 2002-09-23 2004-03-25 Ismatec Sa Hose cartridge for a peristaltic pump
EP1400691A2 (en) * 2002-09-23 2004-03-24 Ismatec SA, Laboratoriumstechnik Tube cassette for peristaltic pump
US7214038B2 (en) * 2002-09-23 2007-05-08 Ismatec Sa Hose cartridge for a peristaltic pump
US7300264B2 (en) 2003-09-08 2007-11-27 Hewlett-Packard Development, L.P. Peristaltic pump
US20050053502A1 (en) * 2003-09-08 2005-03-10 Hewlett-Packard Development Company, L.P. Peristaltic pump
US7445436B2 (en) 2003-09-29 2008-11-04 Bausch & Lomb Incorporated Peristaltic pump with a moveable pump head
US20050069419A1 (en) * 2003-09-29 2005-03-31 Cull Laurence J. Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery
US7168930B2 (en) 2003-09-29 2007-01-30 Bausch & Lomb Incorporated Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery
US20050069437A1 (en) * 2003-09-29 2005-03-31 Michael Mittelstein Peristaltic pump with a moveable pump head
US9889277B2 (en) 2005-01-13 2018-02-13 Avent, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US9579488B2 (en) 2005-01-13 2017-02-28 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US9131956B2 (en) 2005-01-13 2015-09-15 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US7976518B2 (en) 2005-01-13 2011-07-12 Corpak Medsystems, Inc. Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US7722338B2 (en) * 2005-02-10 2010-05-25 Novasys Medical, Inc. Peristaltic pump providing simplified loading and improved tubing kink resistance
US20060177328A1 (en) * 2005-02-10 2006-08-10 Novasys Medical, Inc. Peristaltic pump providing simplified loading and improved tubing kink resistance
US20090125018A1 (en) * 2005-08-26 2009-05-14 Ams Research Corporation Heat Treatment System For Pelvic Support Tissue
US20160317733A1 (en) * 2007-09-13 2016-11-03 Fresenius Medical Care Holdings, Inc. Portable Dialysis Machine with Improved Reservoir Heating System
US20110171052A1 (en) * 2007-09-27 2011-07-14 Curlin Medical Inc. Peristaltic pump assembly
US8257054B2 (en) * 2007-09-27 2012-09-04 Curlin Medical Inc. Method of installing and removing a cassette from a pump body having a mounting pin
US8550310B2 (en) 2007-12-05 2013-10-08 Bunn-O-Matic Corporation Peristaltic pump
US20100301071A1 (en) * 2007-12-05 2010-12-02 Bunn-O-Matic Corporation Peristaltic pump
US9572921B2 (en) * 2008-12-17 2017-02-21 Smith & Nephew, Inc. Cartridge assembly
US20100152647A1 (en) * 2008-12-17 2010-06-17 Smith & Nephew, Inc. Cartridge Assembly
US8857666B2 (en) * 2010-04-15 2014-10-14 Edward L. O'Keefe, JR. Wine dispensing system
US20110253746A1 (en) * 2010-04-15 2011-10-20 O'keefe Jr Edward L Wine dispensing system
US9102508B2 (en) 2011-02-01 2015-08-11 Edward L. O'Keefe Wine dispensing system
US9028441B2 (en) 2011-09-08 2015-05-12 Corpak Medsystems, Inc. Apparatus and method used with guidance system for feeding and suctioning
US9918907B2 (en) 2011-09-08 2018-03-20 Avent, Inc. Method for electromagnetic guidance of feeding and suctioning tube assembly
US8403927B1 (en) 2012-04-05 2013-03-26 William Bruce Shingleton Vasectomy devices and methods
US9421322B2 (en) * 2012-11-14 2016-08-23 Covidien Lp Feeding set with cassette and related methods therefor
US20160346467A1 (en) * 2012-11-14 2016-12-01 Covidien Lp Feeding Set with Cassette and Related Methods Therefor
US20140135731A1 (en) * 2012-11-14 2014-05-15 Covidien Lp Feeding Set with Cassette and Related Methods Therefor
US9739272B2 (en) * 2012-11-29 2017-08-22 Fair Oaks Farms Brands, Llc Liquid product dispensing system and method
US20140144928A1 (en) * 2012-11-29 2014-05-29 Fair Oaks Farms Brands, L.L.C. Liquid Product Dispensing System and Method
USD762850S1 (en) 2013-04-23 2016-08-02 Covidien Lp Cassette

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