| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417477300 | Specific rollers or slides structure | 40 |
| 20090123312 | CHEMICAL LIQUID SUPPLYING APPARATUS - A chemical liquid supplying apparatus | 05-14-2009 |
| 20090214366 | Peristaltic Pumping Apparatus and Method - The present disclosure relates to a rotor assembly for a peristaltic pump. The pump includes a first rotor having a plurality of rollers and a second rotor, coupled to the first rotor, having a plurality of rollers. The rollers of the first and second rotors are located at an angle of about 45° relative to each other. In an embodiment, the first rotor and the second rotor are circular. In another embodiment, the rollers of the first rotor are equally spaced or located at an angle, about 90°, relative to each other. In yet another embodiment, the rollers of the second rotor are equally spaced or located at an angle, about 90°, relative to each other. A peristaltic pump and a method of supplying fluid to a surgical area are also disclosed. | 08-27-2009 |
| 20090280016 | PERISTALTIC PUMP - A peristaltic pump uses a length of elastic tube with an inlet at one end and an outlet at the second end for delivering fluid material an outlet pressure greater than the inlet pressure. A support element disposed along the length of elastic tube is in contact with the elastic tube. A mechanism moves a compression element into engagement with a segment of the elastic tube thereby forming a compressed segment with a tube center section and two folded tube edges wherein at least one surface engaging the folded tube edges has a contours that reduce stresses in the elastic tube walls at the folded tube edges increasing pump performance and/or life of the elastic tube. | 11-12-2009 |
| 20090285706 | Peristaltic pump with removable tube - A peristaltic pump comprising a casing defining a tube race, a flexible tube disposed in said tube race, and a rotor with one or more rollers adapted to act against the flexible tube, in which the casing comprises a first section comprising said tube race and a first part of fitting means, and a second section comprising said rotor and a second part of said fitting means, in which the first and second parts of said fitting means are a releasable snap-fit together. | 11-19-2009 |
| 20100054975 | PULSATILE PERISTALTIC PUMP FOR USE IN A CARDIOPULMONARY BYPASS - The peristaltic pump of the invention incorporates at least one pumping roller and one occluding roller. The occluding roller is located diametrically across the pumping roller and is designed to provide occlusion only and not progressive squeezing of the pump tubing while rotating in the same direction as the pumping roller. Such occlusion prevents back-flow through the tubing. More than two rollers spaced evenly along the periphery of the rotor allow for various useful combinations of pumping and occluding rollers. Two occluding and one pumping roller combination creates a pulsatile flow close to that of a human heart —with systole being about twice shorter than diastole. | 03-04-2010 |
| 20100296955 | LINEAR PERISTALTIC PUMP WITH FINGERS AND MEMBRANE AND FINGER FOR SUCH A PUMP - The invention relates to a linear peristaltic pump with fingers comprising a membrane positioned between the pumping fingers ( | 11-25-2010 |
| 20100316516 | PERISTALTIC PUMP - The invention concerns an improved peristaltic pump including at least one elastically flattenable tube and at least two assemblies of two pressing elements placed opposite each other, each of said assemblies being configured to compress the tube at a different point from the pump. These two pressing elements of a single assembly are placed on either side of the tube, at least one of the pressing elements of this single assembly is mobile such that the distance separating the pressing elements of the single assembly is adjustable, to allow the pressing members to be placed in a rest position, in which the tube is not compressed by the pressing elements, or to allow the pressing elements to be placed in a position compressing the tube. Advantageously, the adjustment is made automatically when the peristaltic pump or pumping is started or stopped. | 12-16-2010 |
| 20110002801 | FLUID TRANSPORT SYSTEM WITH ELASTIC TUBE AND DETACHING CAM ARRANGEMENT - A fluid transportation system includes an elastic tube, a tube frame to which the tube is attached such that the tube forms a circular arc, a first cam and a second cam disposed inside the tube, and fingers which radially extend from a rotation center in the space between the tube and the first and second cams. The first and second cams produce a first condition where the fingers are all released and a second condition where at least one of the fingers constantly closes the tube. The first and second cams sequentially press the fingers, and the fingers sequentially repeat closure and release of the tube so that fluid can continuously flow. | 01-06-2011 |
| 20120107160 | PERISTALTIC PUMP TUBING WITH STOPPER AND COOPERATIVE ROLLER ASSEMBLY HOUSING HAVING NO MOVING PARTS - A peristaltic pump system includes elastomeric pump tubing and a roller pump. The pump tubing has a pumping segment and an inlet segment. The inlet segment has an inlet segment outer diameter. The pumping segment has a pumping segment outer diameter less than the inlet segment outer diameter. The roller pump has a roller assembly and a roller assembly housing. The roller assembly is disposed within the roller assembly housing and engaged with the pumping segment within the roller assembly housing. The roller assembly housing has an inlet gap formed through the roller assembly housing. The inlet gap defines an inlet gap inner diameter smaller than the pumping segment outer diameter. The inlet gap is adapted to frictionally receive the inlet segment for aligning the pump tubing with a roller assembly and mitigate longitudinal movement of the pump tubing into the roller assembly housing. | 05-03-2012 |
| 20120156074 | Peristaltic Pump - A peristaltic pump for conveying fluids includes a stator and a rotor supported therein. A flexible hose is integrated in the stator and the rotor includes radially arranged conveying elements which squeeze the hose over a section containing the fluid. The squeezed fluid section moves progressively in the hose under the effect of a motor connected to the rotor. The conveying elements are designed as rotatably mounted rollers that include at least two rolling bearings, of which the outer rings are connected via a common outer sleeve and of which the inner rings are connected to the rotor. Under the effect of the motor, the rotor moves in the stator and the outer rings of the conveying elements roll on the inner surface of the stator. | 06-21-2012 |
| 20120171063 | Blood-pumping device - A blood-pumping device comprises a cavity with a U-shaped wall comprising two straight regions connected by an arch-shaped region and a U-shaped tube aligned with the U-shaped wall of the cavity to provide a support for the U-shaped tube, wherein the U-shaped tube comprises two straight regions connected by a semicircular region. The blood-pumping device further comprises an arm rotatable about a center point of the semicircular region, wherein the arm holds two wheels a distance from each other such that upon rotation of the arm the wheels roll along the U-shaped tube while putting pressure on the U-shaped tube, wherein the arch-shaped region of the U-shaped wall of the cavity comprises a recessed portion so that the wheels of the arm impose less pressure on the tube at the recessed portion and upon rotation of the arm generates a pulsating blood flow. | 07-05-2012 |
| 20120195777 | Flexible tubing pump and therewith equipped blood treatment device - The invention describes a tubing pump for accommodation of at least one section of a flexible tubing with at least one stator and at least one rotor that pivots around an axis of rotation in the stator, in which the stator surrounds or completely or partially confines the rotor, sparing out/with a first opening intended for inserting of the flexible tubing into the pump, and a separate second opening to lead the flexible tubing out of the pump sparing out/and with a section arranged between the first opening and the second opening of the tubing pump and/or the stator comprising an edge or a section at the place of the second opening to lead the tubing, which is nearer to the axis of rotation of the rotor than all other sections of the stator. The invention further describes a blood treatment device including the blood pump. | 08-02-2012 |
| 20130243632 | FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT - A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate. | 09-19-2013 |
| 20130243633 | FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT - A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate. | 09-19-2013 |
| 20140105772 | FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT - A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate. | 04-17-2014 |
| 20140219843 | TUBING PUMP - A configuration of a tubing pump capable of improving flow rate accuracy which is required, particularly, in infusion pumps for medical use is developed. In a tubing pump that delivers a liquid in a tube which is separately loaded, a pump mechanism includes a valve mechanism unit that occludes and releases occlusion to the loaded tube and a tube pressing mechanism unit that repeatedly presses the tube, and the tube squeezing mechanism unit includes a pump block which has its movement guided by at least two guide shafts. | 08-07-2014 |
| 20140255229 | Blood-pumping device - A blood-pumping device comprises a cavity with a U-shaped wall comprising two straight regions connected by an arch-shaped region and a U-shaped tube aligned with the U-shaped wall of the cavity to provide a support for the U-shaped tube, wherein the U-shaped tube comprises two straight regions connected by a semicircular region. The blood-pumping device further comprises an arm rotatable about a center point of the semicircular region, wherein the arm holds two wheels a distance from each other such that upon rotation of the arm the wheels roll along the U-shaped tube while putting pressure on the U-shaped tube, wherein the arch-shaped region of the U-shaped wall of the cavity comprises a recessed portion so that the wheels of the arm impose less pressure on the tube at the recessed portion and upon rotation of the arm generates a pulsating blood flow. | 09-11-2014 |
| 20140356204 | PUMP ROLLER ASSEMBLY WITH FLEXIBLE ARMS - A roller assembly comprises a central section with a hub; a plurality of arms coupled to the central section, each arm having a radial section, an arcuate section, and a bent section; and a plurality of rollers, one roller coupled to the bent section of each arm. The arms may be flexible such that the rollers are capable of moving with respect to the central section when the arms flex. The rolling surface of the rollers is arranged to engage a polymer sheet or flexible tubing throughout travel of the arms. | 12-04-2014 |
| 20160252085 | System and Method for Holding Tubing for a Peristaltic Pump | 09-01-2016 |
| 20170234309 | MAGNETICALLY BALANCED FINGER-TYPE PERISTALTIC PUMP | 08-17-2017 |
| 417477400 | Helical slide | 2 |
| 20110070111 | STATOR/ROTOR ASSEMBLIES HAVING ENHANCED PERFORMANCE - A stator/rotor assembly includes at least one extruded preform bonded to a stator housing and/or a rotor mandrel. A method of constructing a stator/rotor assembly includes extruding at least one preform, and bonding the preform to a stator housing and/or a rotor mandrel. A method of constructing a stator includes applying multiple polymer strips to a bladder; and bonding the polymer strips to a stator housing while compressing the polymer strips between the bladder and the stator housing, without injection molding. A method of constructing a rotor includes applying multiple polymer strips to a rotor mandrel, and bonding the polymer strips to the rotor mandrel while compressing the polymer strips between a bladder and the rotor mandrel, without injection molding. | 03-24-2011 |
| 20150125328 | OPHTHALMIC LUBRICATION SYSTEM AND ASSOCIATED APPARATUS, SYSTEMS, AND METHODS - Devices, systems, and methods including a lubricating solution bath for a pump integrated into an ophthalmic surgical hand piece are provided. In some embodiments, an ophthalmic pump system includes a housing defining a cavity. The system includes a rotating element positioned within the cavity of the housing. The system includes a flexible tubular structure positioned within the housing adjacent to the rotating element such that rotation of the rotation element urges a fluid through the flexible tubular structure. The system includes a lubricating solution positioned within the cavity around the rotating element and at least a portion of the flexible tubular structure. | 05-07-2015 |
| 417477700 | Biased rollers or slides | 7 |
| 20090269228 | Adjustable roller pump rotor - A pump rotor for a roller pump, is disclosed. The rotor comprises: a first roller support comprising a first roller; a second roller support comprising a second roller; an element in the center connected to the first and second roller supports, wherein the first and second roller supports may move angularly with respect to the center element causing distance between the first and second rollers to be varied; first and second positioning elements that connect the first and second roller supports, respectively, to the center element; and first and second spring biased components surrounding first and second positioning elements, respectively, to allow the first and second roller supports to move to allow for automatic adjustment of the rotor. | 10-29-2009 |
| 20100047100 | TUBE PUMP AND ROTOR FOR TUBE PUMP - A tube pump rotor including a rotor element, a plurality of first swing portions supported pivotally at their base end portions by the rotor element, second arm-shaped swing portions supported pivotally at their base end portions individually by the first swing portions, rollers supported rotatably by the individual free ends of the second swing portions, and buffer members made to confront the side faces of the second swing portions so that the rollers may be individually directed radially outward of the rotor. | 02-25-2010 |
| 20120100023 | TUBE PUMP - A tube pump capable that prevents and minimizes torque variation in a drive motor regardless of the rotation direction of a rotor unit includes a casing in which a liquid-flowing tube is arranged; a drive motor provided with a driving shaft rotatable in forward and reverse directions; a rotor body; roller holders supported on the rotor body to swing with respect to the rotor body; pressing rollers rotatably supported on the roller holders to press the tube against an inner circumferential wall surface of the casing; and biasing units biasing the roller holders, when swung, to be returned to a pre-swing position. The roller holders are configured to swing with respect to the rotor body in a direction opposite to a rotation direction of the rotor body. | 04-26-2012 |
| 20130343938 | PERISTALTIC PUMP FOR IMAGING APPARATUS - A pump for pumping fluid using peristaltic compression. The pump includes a rotor and a roller. The rotor includes a first cam that extends along a circumferential direction relative to the rotor. The first cam has first and second dwells. The roller is movable relative to the rotor between the first dwell and the second dwell of the first cam as the rotor rotates in a first direction and a second direction. The rotor includes a second cam extending radially from its shaft for engaging the roller. Contact between the second cam and the roller increases frictional resistance between the rotor and the roller as the roller translates between the first and second dwells of the first cam such that the roller transitions between the first and second dwells without slipping. | 12-26-2013 |
| 20140212314 | LINEAR PERISTALTIC PUMP - Linear peristaltic pump for pumping a fluid through a flexible tube ( | 07-31-2014 |
| 20140356205 | PUMP HEAD WITH INDEPENDENTLY SPRUNG OFFSET PICOTING ROLLERS - A roller assembly comprises a central section with a hub, the central section having a plurality of pivots located around the central section; a plurality of arms, each arm having a roller end and a pivot end, the pivot ends coupled to the central section at the plurality of pivots such that each arm is capable of pivoting independently with respect to the central section, the roller ends and pivot ends of each arm located a distance of at least one roller width away from each other; a plurality of rollers, one roller coupled to each of the roller ends of the plurality of arms; wherein the plurality of rollers and arms are located around the central section such that the pivot is located a distance away from the roller. | 12-04-2014 |
| 20140356206 | PUMP ROLLER ASSEMBLY WITH INDEPENDENTLY SPRUNG ROLLERS - A roller assembly comprises a central section with a hub; a plurality of arms coupled to the central section such that each arm is capable of moving independently with respect to the central section; a plurality of spring pins, one spring pin associated with each arm; a plurality of retaining pins, one retaining pin associated with each arm; and a plurality of rollers, one roller coupled to each arm. | 12-04-2014 |
| 417477800 | Adjustable rollers or slides | 4 |
| 20100129247 | Peristaltic hose pump - The present invention shows a hose roller pump comprising a stator, a rotor and a rotor drive, wherein the rotor includes hose rollers whose position is variable in the radial direction via an adjustment apparatus having an adjustment element and wherein a brake device is provided and the radial position of the hose rollers is variable by the interplay of the brake device and the rotor drive. | 05-27-2010 |
| 20140341765 | PERISTALTIC PUMP AND AN ADJUSTMENT MECHANISM - This invention concerns peristaltic pumps and an adjustment mechanism for adjusting a compression force imposed on a hose. The adjustment mechanism includes at least a gear unit and a counterpart for the gear unit. The counterpart is operatively coupled to a rotor, wherein the gear unit in cooperation with the counterpart are configured to adjust a gap between the rotor outer surface and the pump cavity inner perimeter. | 11-20-2014 |
| 20150078941 | SLIDING GUIDE FOR A PERISTALTIC PUMP - The invention relates to a peristaltic pump that includes at least assembly including at least a rotor configured to compress a hose/tube being positioned on a pump cavity inner perimeter and an adjustment mechanism configured to adjust the compression force imposed on the hose/tube. The adjustment mechanism includes at least a gear unit and a counterpart for the gear unit. The counterpart is operatively coupled to the rotor, wherein the gear unit in cooperation with the counterpart is configured to adjust a gap between the rotor outer surface and the pump cavity inner perimeter. The assembly is fixed to a sliding guide, that is configured to support the hose/tube. | 03-19-2015 |
| 20150139836 | ROLLER POSITIONING SYSTEM - A fluid delivery system is provided for use with a peristaltic pump, which includes a roller-tube engagement zone and a rotor structure including an array of rollers. The fluid delivery system includes a console to removably receive the peristaltic pump in a mounted position, with the console including a roller positioning system. | 05-21-2015 |
| 417477600 | Positively driven rollers | 7 |
| 20100047099 | MICROPUMP - A micropump includes: a tube unit which includes a tube having elasticity and a circular-arc-shaped part and a tube guide frame for holding the tube; a control unit which has a plurality of fingers extending from the center of the circular-arc shape of the tube in the radial directions, a cam for sequentially pressing the plural fingers from the inlet side to the outlet side of the tube, a drive unit for giving rotation force to the cam, a control circuit unit for controlling operation of the drive unit, a device frame for holding the plural fingers, the cam, the drive unit, and the control circuit unit; a reservoir communicating with an inlet port of the tube; and a power source for supplying power to the control circuit unit, wherein the tube unit is detachably attached to the control unit substantially in the horizontal direction with respect to the rotation surface of the cam and attached to the inside of a space produced by the device frame. | 02-25-2010 |
| 20100080720 | CONTROL UNIT, TUBE UNIT, AND MICROPUMP - A micropump includes: a tube unit including an elastic tube, one portion of which is disposed in an arc shape, a plurality of fingers, which are disposed radially from the direction of the radius point of the arc shape of the tube, and a guide frame, which holds the tube and the plurality of fingers; a control unit including a cam, which presses the plurality of fingers in order from the inflow side to the outflow side of the tube, a drive section, which applies torque to the cam, a control circuit, which carries out a drive control of the drive section, and a machine casing, which holds the cam, drive section, and control circuit; a reservoir with which a flow inlet of the tube communicates; and a power source which supplies electric power to the control circuit, wherein the tube unit is mountable in and removable from the control unit in a direction approximately parallel to the plane of rotation of the cam, and is mounted inside a space provided in the machine casing. | 04-01-2010 |
| 20100086421 | Peristaltic Pump - A peristaltic pump having a plurality of pressors which compress a tube portion according to an orderly sequence. The pump is capable of determining a fluid flow inside the tube portion. The pressors are balancing or tilting pressors pivoted around a mutual axis and operated by corresponding motion means, which push the pressors against a plane or reaction element, contrasting the pressure of the same pressors on the tube containing the fluid to be pumped. | 04-08-2010 |
| 20100278667 | Peristaltic Pump - A peristaltic pump mechanism comprises a gear having teeth configured for meshed engagement with a drive source, such as a DC motor and a pair of occlusion members configured to compress a transport tube against an occlusion surface. Each occlusion member is mounted on an axle, with one end of the axle mounted on the first gear and an opposite end of each axle engaged by a support member. Two support ribs are mounted between the gear and the support element. The pair of occlusion members includes a first pair of rollers mounted on the gear 180° apart from each other. The two support ribs are mounted on the gear 180° apart from each other and offset 90° from the pair of rollers. The DC motor drives a worm gear in meshed engagement with the gear of the pump mechanism. | 11-04-2010 |
| 20130045121 | Peristaltic Pump - The invention relates to a peristaltic pump ( | 02-21-2013 |
| 20130287614 | MICROPUMP - A micropump including a tube unit and a control unit. The control unit has a plurality of fingers. A cam sequentially presses the plurality of fingers from an inlet side to an outlet side of the tube. A drive unit gives rotation force to the cam, a control circuit unit controls operation of the drive unit, and a device frame holds the plurality of fingers, the cam, the drive unit, and the control circuit unit. A reservoir communicates with an inlet port of the tube; and a power source supplies power to the control circuit unit, wherein the tube unit is detachably attached to the control unit substantially in the horizontal direction with respect to the rotation surface of the cam and attached to the inside of a space produced by the device frame. | 10-31-2013 |
| 20150110655 | LINEAR PERISTALTIC PUMP - A peristaltic pump ( | 04-23-2015 |
