Enteral nutrition system

Abstract

We provide a cassette for use with a flow control device. [Solution] A cassette 5, used with a pumping device 1 having a pumping system that engages with a pump set 7, includes a cassette body configured to be releasably attached to the pumping device for attaching the cassette to the pumping device. The cassette body has at least one mounting feature. The mounting feature of the cassette body allows at least one identification member to be attached to the cassette body. The identification member and the mounting feature are formed to allow the identification member to be attached in one of a plurality of predetermined orientations. Each predetermined orientation represents a different functional configuration of the pump set.

Description

Technical Field

[0001] The present invention generally relates to a flow control system including a flow control device and a supply set, and more particularly to a cassette for use with a flow control device.

Background Art

[0002] The administration of drugs or nutrients to patients who cannot ingest them orally can be carried out by utilizing a peristaltic flow control system. Generally, in such a system, the fluid is delivered to the patient by a pump set including a flexible elastomeric tube mounted on a flow control device such as a peristaltic pump that delivers the fluid to the patient at a controlled delivery rate. The peristaltic pump usually has a housing including a rotor operably engaged with a motor via a gearbox. The rotor causes the flexible tube of the pump set to drive the fluid through the peristaltic action caused by the impact of one or more rollers on the rotor, for example, reversible compression caused by pressing. The rotation of the rotor gradually compresses the elastomeric tube that drives the fluid at a controlled speed. The pump set can have a valve mechanism for enabling or preventing the communication of the flow of fluid through the pump set. The flow control system can also have a controller for operably adjusting one or more motors that effectively control the flow of the fluid.

[0003] The peristaltic pump operates by delivering the fluid in small portions called "aliquots". The rotor engages the elastomeric tube of the pump set and clamps a portion of the elastomeric tube, for example, in front of the pinched position closer to the patient than the fluid source towards the patient.

[0003] The fluid is pushed out. Generally, the amount of fluid administered to the patient is substantially the same for each patient. Count the number of aliquots and adjust that number to match the desired total amount of fluid to be delivered. It is controlled within the pump by stopping when it reaches its limit. Peristaltic pumps are hygienic. Furthermore, because it is generally accurate, it is extremely useful for administering drugs and therapeutic solutions to patients. [Overview of the project] [Means for solving the problem]

[0004] In one embodiment, a pumping device having a pumping system that engages with a pump set is used together The cassette used is generally attached to the pumping device. The cassette body is configured to be removably attached to the fitting device. It is attached to the cassette body and includes a mounting structure. At least one identification member is, To illustrate the functional configuration of the amplifier set, the mounting structure is attached to the fitting. The mounting structure and identification members indicate the different functional configurations of the cassette and pump set. To achieve this, the identification members are configured to be attached to the fitting in different orientations.

[0005] In another embodiment, the fitting assembly used for the cassette of the pump set is generally It has a main unit equipped with an inlet port and an outlet port. The main unit is designed to be attached to a cassette. It is configured as follows. At least one identification member is used to indicate the functional configuration of the pump set. It can be attached to the body.

[0006] In yet another embodiment, a pumping system having a pumping system that engages with a pump set The cassette used with the device is generally designed to be attached to the pumping device. Includes a cassette body configured to be releasably attached to a pumping device. The main body has at least one mounting structure. The mounting structure of the cassette body Furthermore, at least one identification member is attached to the cassette body. Identification member and attachment The formed object is constructed so that the identification member can be attached in one of a plurality of predetermined orientations. Each specified orientation represents a different functional configuration of the pump set.

[0007] In yet another embodiment, the method of assembling the cassette generally involves engaging with the pump set. The invention includes providing a cassette for use with a pumping device having a pumping system. Hmm. To show the functional configuration of the pump set, at least one identification member is attached to the cassette. wear.

[0008] In yet another embodiment, the flow control system generally includes a pumping device and a sensor. It is equipped with a flow control device. The pump set consists of a cassette and a tube attached to the cassette. Includes a cassette. The cassette and tube are used to attach the cassette and tube to the flow control device. It is configured to be removably mounted to the control unit. The cassette has at least one handle A mounting structure and at least one identification that is attached to the cassette by the mounting structure. The identification member and the mounting structure have a component. The identification member can be positioned in any of a plurality of predetermined orientations. It is formed to be installed with one piece. Each predetermined orientation is different functional configuration of the pump set The sensor indicates that the pump set has at least one identification to determine its functional configuration. It is configured to detect the presence and orientation of the component. [Brief explanation of the drawing]

[0009] [Figure 1] A perspective view of a supply system having a pumping device, a fragmentary part of a supply set, and a cassette.

[0010] [Figure 2] A perspective view of the system of FIG. 1, but with a part of the cassette removed.

[0011] [Figure 3] A perspective view of FIG. 1 excluding the supply set and the cassette.

[0012] [Figure 4] A front perspective view of the cassette.

[0013] [Figure 5] A rear perspective view of the cassette.

[0014] [Figure 6] A rear view of the cassette.

[0015] [Figure 7] A rear perspective view of the cassette with the fitting assembly removed therefrom.

[0016] [Figure 8] A front perspective view of the fitting assembly.

[0017] [Figure 9] A rear perspective view of the fitting assembly.

[0018] [Figure 10] A front perspective view of the fitting assembly with the stem of the stopcock removed therefrom.

[0019] [Figure 11] A rear perspective view of the stem.

[0020] [Figure 12] This is a side view of the stem.

[0021] [Figure 13] Cross-section of the stem;

[0022] [Figure 14A] This is a perspective view of a magnet magnetized in the axial direction.

[0023] [Figure 14B] This is a perspective view of a magnet magnetized in the diametrical direction.

[0024] Corresponding symbols indicate the corresponding parts throughout the drawing. [Modes for carrying out the invention]

[0025] One or more aspects of the present invention relate to peristaltic pumps such as rotary peristaltic pumps, and more particularly to multiple peristaltic pumps. Rotary peristaltic pump utilizing a cassette with valves for selecting the fluid flow mode. Regarding this. Also, the cassette prevents the outlet tube attached to the cassette from twisting. It has a configuration. Any one or more advantageous features or any one or more of these features The structure provided or promoted is used in peristaltic pumps for various commercial and industrial applications. It can be implemented. Therefore, a detailed explanation is directed towards enteral nutrition pumps equipped with cassettes. However, any one or more features of the present invention are, with or without a cassette, other This can be embodied or implemented in a peristaltic pump. For example, the pump described exemplified While the pump is a rotary peristaltic enteral nutrition pump, the present invention also includes other types, including medical infusion pumps. This also applies to peristaltic pumps (not shown). The general structure and operation of enteral nutrition pumps are as follows: Except for those listed below, "FLOW CONTROL APPARATUS" A joint transfer of U.S. securities, issued on October 27, 2009, titled "U.S. Securities and Exchange Act No. 7, 6" No. 08,059, “FLOW MONITORING SYSTEM FOR A FL On August 15, 2006, a film titled "OW CONTROL APPARATUS" was released. U.S. Patent No. 7,092,797 issued, and "ALIQUOT CORRECTI Two titles: ON FOR FEEDING SET DEGRADATION Disclosed in U.S. Patent No. 7,534,099, issued on May 19, 2009. This may be substantially the same as the above. One or more of the various features and embodiments of the present invention may be excluded from the scope of the present invention. In peristaltic pumps such as linear peristaltic pumps that use mechanisms other than rollers without detaching, It can be implemented. Also, although an exemplary supply set 7 is shown, it may not be within the scope of the present invention. Other types of pump sets (not shown) can be used without deviation.

[0026] Referring to the drawings, particularly Figures 1-3, the present invention is configured according to one or more of the principles of the present invention. An example of an enteral nutrition pump (or "pumping device" in a broader sense) is shown in 1 as a whole. The nutritional pump is configured to accommodate the cassette shown in 5 as a whole. The housing, shown as 3 overall, and the cassette 5 are detachably received A supply set (or "pump set" in a broader sense) consisting of fragmented parts, all represented as 7. It can be equipped with the following. The cassette 5 is removably mounted in the housing 3. In the illustrated embodiment, the cassette 5 is removable into the cassette recess 6 within the housing 3. It is accepted by (Figure 3). Naturally, the term "housing" as used herein is This includes a multi-component structure and a structure that does not enclose or house the operating components of pump 1. This may include many forms of support structures (not shown), but is not limited to these. Various aspects and features of the invention can be implemented without the recess 6. Pump 1 can also be A display screen 9 can display information regarding the status and operation of the pump on the woofer 3. It may have one or more buttons 11 that are close to the display screen 9 control the pump 1. It can be provided for use when obtaining information from the control pump 1, and one or more The photodiode 13 can provide pump status information to the user or operator. To make it easier to see, the bottom of the housing 3 is designed so that the display screen 9 is slightly tilted upwards. The legs (not shown) can be positioned to support the waddling.

[0027] Display screen 9 is part of the front panel of housing 3 (shown as 19 overall). It can be attached to the housing in a removable manner. The enteral nutrition pump is The entire system includes a pump motor (not shown) connected to a rotor shaft (not shown). It may further include a pumping unit as shown in 23. The pump motor is powered A battery (not shown) can be accommodated within housing 3 to supply power. Using a power source other than or in addition to the battery, the pump is powered through the rotor shaft. The pump, which includes one or more prime movers that drive the pumping unit, can be energized.

[0028] The pumping unit 23 is a rotor (as a whole) that can be connected to the rotor shaft. The rotor 37 may have an inner disk 39 and an outer disk 39. Disc 41 and inner discs that rotate relative to the discs about their longitudinal axes Four rollers 43 are mounted between the cu and the outer disc (only three of which are shown). (Figures 2 and 3) can include (which are included). Roller 43 is the supply set cassette Accepted into to 5, when the cassette is mounted in housing 3, the supply set 7 Tube 45 (Figure 2) engages with the supply set to deliver fluid to the target. Laura is also conceivable. For example, without departing from the scope of this disclosure, five or six Laura You can also use "ra".

[0029] Referring to Figures 4-7, the cassette 5 has a front section 53, a rear section 55, an upper section 57, and a lower section 59. The cassette body 51 may be provided having the side wall 61 and the top wall 63. A rear key extending from the rear 55 of the body 51 and configured to receive the fitting 65 A cavity can be formed. Tube 45 (Figure 2) is attached to fitting 65. It can be attached. Fitting 65 can be fixed to the cassette or It may have tabs 84 that allow it to be fastened with snaps. In some cases, The fitting can be detachably secured to the cassette.

[0030] Fitting 65 is connected to base 67, inlet port 69, outlet port 71, and stem It can be equipped with a rod 66. The inlet port 69 is for insertion into the inlet end of the tube 45. The first mounting section 73 and a pair of second mounting sections for receiving the inlet tube 77 (Figure 2) It may include 75A and 75B. The outlet port 71 is inserted into the outlet end of the tube 45. A first mounting portion 79 for engagement or attachment by means of insertion, etc., and a receiving portion for the outlet tube 83. Includes a second mounting portion 81 for attachment to the outlet tube 83, etc. The opening of the second mounting portion 81 that receives the outlet tube 83 secures the tube within the opening. To do so, it may be funnel-shaped or tapered away from the opening. The outlet tube 83 is The tube is treated with a solvent to soften it for insertion into the mounting portion 81 and for joining with the mounting portion 81. It can also be managed. The second mounting portion 75A is in fluid communication with the supply source (e.g., nutrient solution bag). The second mounting portion 75B can be connected to a cleaning source (for example, a washing source) via the inlet tube 77. It can be connected to the fluid purification bag. Alternatively, the second mounting part 75B can be used as the supply source. The second mounting section 75A can also be attached to the cleaning source.

[0031] Tube 45, fitting 65, inlet tube 77, and outlet tube 83 are, Pump set 7 can be configured. Cassette 5 can be considered part of the pump set. It is also conceivable that this may occur. In a preferred embodiment, the cassette 5 is made of polycarbonate or the like. It is made from rimmer material.

[0032] Referring to Figures 8 to 13, the stopcock, including the cylindrical stem 68, is fitted The stem 65 is received into the circular opening 70 of the stem holder 66. The stem 68 is the pump stem To position the net in either a fluid delivery configuration, a cleaning configuration, or a fluid flow blocking configuration, a second take The attachment parts 75A and 75B are movable within the opening 70 to selectively communicate with the first mounting part 73. In other words, it is rotatable. The second mounting parts 75A and 75B are each fitted with fitting 6 The first mounting portion 73 has an outlet that communicates with the opening 70 of the fitting, and the first mounting portion 73 is connected to the opening of the fitting. It has an opening through which something passes. Stem 68 has a first opening 74 and a second opening 7 formed in the main body It comprises a cylindrical body 72 having 6. The first and second openings 74, 76 are the first openings The dimension of is elongated so that it is larger than the second dimension which is orthogonal. The second opening 76 is the first opening The slot dimensions are longer than the opening 74. The first and second openings 74 and 76 are located in the main body 72 It is located on roughly the opposite side, and the fluid flow through the stem 68 is through the second mounting parts 75A and 75B They extend downward in a generally single plane up to the first mounting portion 73, and they are in the same plane It is positioned as shown (Figure 13). The passage 88 extends into the body 72 of the stem 68, Opening 74 is connected to the second opening 76. The passage 88 is from the first opening 74 to the second opening It extends to 76. The passage 88 has a curved inner wall 9 that gives the passage an almost inverted V shape. It has 2.

[0033] The flange 78 extends radially from the main body 72 of the stem 68, and partially around the outer circumference of the main body. It extends to the stem 68. A cavity 80 is formed in the main body 72, and the shaft 93 of the pump 1 is on the stem 68. The flange 78 engages with the main body and allows the main body to rotate within the opening 70. It is configured to engage with the hook 108 located in the recess 6 of the pump 1. The flange 78 and the hook The engagement with the 108 prevents the supply set 7 from coming loose during the operation of the pump 1. The full functionality delivers an uncontrolled amount of fluid to the patient, which could be potentially harmful to the patient. This prevents a free flow condition in the supply set 7. In addition, the flange 78 is described below. As explained, it functions as a stop engagement mechanism to limit the rotation of stem 68. The fitting 65 and stem 68 can be considered together as fitting assembly 82. Yes, it is possible. The fitting assembly 82 consists of a fluid flow selection valve and an inlet tube 7. Remove it from 7 and place it inside the main body of cassette 5.

[0034] In the configuration shown in Figure 8, the fitting assembly 82 is the second mounting portion 75A, 75B The main body 72 prevents the outlet from communicating with the opening 70 and the inlet of the first mounting portion 73, thus blocking fluid flow. It is in a disjointed configuration. For example, the shaft 93 of pump 1 engages with the cavity 80 and the body 72 Rotation of the stem 68, such as by rotating it clockwise within the opening 70, 74 is connected to the exit of the second mounting portion 75B, and the second opening 76 is connected to the entrance of the first mounting portion 73. This allows the fluid source connected to the second mounting portion 75B to pass through the tube 45. The opening 71 and the outlet tube 83 are connected to the fluid. The second mounting portion 75A is connected to the first mounting portion 73. The communication remains blocked. Further rotation of the stem 68 causes the first opening 74 to move to the second mounting part The outlet of 75A is connected, and the second opening 76 remains in communication with the entrance of the first mounting portion 73. This allows the fluid source connected to the second mounting portion 75A to be supplied via the tube 45 to the outlet 71 and It is connected to the outlet tube 83. This is because the position and length of the second opening 76 are connected to the second opening At least a portion of the part communicates with the entrance of the first mounting portion 73 throughout the entire movement of the stem 68. This is because the first opening 74 is connected to the exits of the second mounting portions 75A and 75B. The second mounting portion 75B is disconnected from the first mounting portion 73 at this time. The stop 94 on the rod 66 engages with the flange 78 to control the rotation of the body within the opening 70. Limit.

[0035] A magnet (or, in a broader sense, an identification member) 126 is formed at the outlet port 71 of the fitting. It can be selectively placed within the pocket 128. In the illustrated embodiment, only a single magnet 126 This is shown. However, it can contain up to four magnets 126, and each magnet is Each of the 65 fitting pockets 128 is accepted. Pump 1 inside More than one sensor 130 is near pocket 128 when cassette 5 is attached to the pump. It is positioned to detect the presence of the magnet 126 in the pocket 128. In one embodiment, 4 Two sensors 130 (only one is shown in the drawing) attach the cassette to the pump 1. When this happens, the sensors are dedicated to each pocket and are generally located in the center of each pocket, The number of magnets 126 is arranged in the pump, facing each other in the four pockets 128 within the 5. The arrangement can be predetermined to show the functional configuration of the supply set 7. For example, magnetic The number and arrangement of 126 stones are: supply, supply / wash, supply Wi-Fi, supply / wash Wi-Fi, Newborn feeding, newborn feeding / washing, newborn feeding Wi-Fi, newborn feeding / washing Wi-Fi One example is the functional configuration of supply set 7. Sensor 130 is Along with a processor (not shown) that communicates with the sensor, the supply set 7 has a specific functional configuration. It is programmed to identify the corresponding magnet arrangement. In one embodiment, the sensor 130 This is a Hall effect sensor. In the illustrated embodiment, the magnet 126 and pocket 128 are disks. The shape is as described above. However, the magnet 126 and pocket 128 deviate from the scope of this disclosure. Without having to, it can have other shapes. In addition, the magnet 126 is within the scope of this disclosure. It can be attached to cassette 5 in other positions and by other means without deviation. ru.

[0036] In one embodiment, the magnet 126 is a magnet magnetized in the axial direction (Figure 14A). Therefore In the case of a disc-shaped magnet, the magnetization direction should be aligned with the axis of rotation of the disc, and the opposite side of the disc should be circular. A north pole and a south pole are formed on the surface. In this embodiment, the magnet 126 is either a north pole or a south pole. It can be placed inside pocket 128 with the opposite side facing the pocket. In addition to the presence of magnet 126 in T128, the orientation of the magnet in the pocket (for example, N pole and S pole) The direction the poles are facing provides a different representation of the specific functional configuration of supply set 7. This is possible. Therefore, in the same position on cassette 5 (for example, within the same pocket 128) The magnet 126 provides the sensor with two different displays depending on the orientation of the magnet at its position. Therefore, one magnet 126 can be used to magnetize any pocket 128. The system for accepting stones and changing the orientation for accepting magnets into pockets is the system This allows for up to eight different magnet position configurations. Using two magnets 126 The system determines which pocket 128 will receive each magnet and which pocket will receive the magnet By changing the orientation, the system can display up to 32 different magnet position configurations. This becomes possible. Therefore, using only two magnets 126, the functionality of 32 supply sets can be achieved. The configuration can be shown and identified. The system using three magnets 126 can be up to 6 Four different magnet position configurations can be shown. This shows whether the magnet is present or not. Compared to systems that only detect either "doesn't do" or "doesn't do," this system offers the identification of more functional configurations. To be served.

[0037] In addition, or instead, one or more of the magnets 126 may be magnetized in the diametrical direction (Figure 14B). In embodiments where the magnetized magnet is cylindrical or disc-shaped, the magnet is magnetized in the direction of magnetization. The magnet is magnetized along the diameter of the disk / cylinder. North and south poles are formed on both sides of the magnet. This is because, in the case of a disc-shaped magnet, the magnetization direction is The N and S poles are formed along the axis of the disc, on the opposite circular surface of the disk, in an axial direction. This is in contrast to magnetized magnets. When using magnetized magnets in the diametrical direction, inside pump 1 The sensor 130 detects the orientation (i.e., angular position) of the magnet 126 in the pocket 128. It can be an angle magnet sensor. The angle sensor detects the magnetic field of a magnet, and the detected The sensor is configured to determine the position of the magnet based on the magnetic field. For example, the sensor is configured to determine the XY of the magnetic field. The coordinates are measured, and the angular position of the magnet is determined based on the measured coordinates. Magnet 126 is Pocket 128, located in the same position on set 5, is oriented at different angular positions, and the supply set Three or more different functional configurations can be shown. For example, the determination of the angular rotation of magnet 126. The angle or angle range can correspond to a specific functional configuration of supply set 7. In the configuration, each 10-degree rotation corresponds to a different functional configuration, and the 36 different components of the supply set 7 It can enable the identification of functional configurations. It provides identification of a different number of functional configurations. Therefore, other increases in angular rotation are also assumed. Thus, different functionalities of supply set 7 Only a single magnet may be needed to provide enough positional variations to demonstrate the configuration. In this embodiment, the four pockets 128 shown in the illustrated embodiment are a single diameter It can be replaced with a single pocket for housing a magnetized magnet. Suitable The sensor assembly was manufactured by Melexis, a company based in Ypres, Belgium. This is a Triaxis® position sensor assembly.

[0038] In one embodiment, a magnet 126 magnetized in the diametrical direction identifies the direction of the magnetic field of the magnet. It has a protrusion. This allows the system to determine which angular position / magnetic field is supplied to set 7 It can indicate whether it corresponds to a functional configuration.

[0039] In one embodiment, the magnet 126 is formed in a non-magnetized state and then magnetized. In this state, the magnet 126 is remagnetized as needed.

[0040] Referring to Figures 5-7, the second mounting portion 81 of the outlet 71 of fitting 65 is the outlet tube The section 83 extends downward within the cassette body 51 before it is inserted into the second mounting section 81. It is recessed from the top 57 of cassette 5. This is a bay that extends downward from the upper wall 63. A portion of the outlet tube 83 extends adjacent to the curved guide wall 96. The guide wall 96 provides a gradually arc-shaped surface on which the outlet tube 83 rests, This prevents the tube from bending sharply at the lateral edge of cassette 5. As a result, the outlet tube 83 prevents twisting that could obstruct the flow of fluid through the tube. In addition, A portion of the outlet tube 83 connects to the upper part 57 of the cassette 5 and the tube fitting 65. The second mounting part extends between it and the mounting area, so it may have been softened by solvent treatment. A portion of the tube inserted into section 81 is not located where the tube is subjected to bending force. Rather, this part is separated from the upper part 57 of the cassette 5 and is guided by a curved guide wall 96. It is held in a generally straight position. This prevents twisting or pinching of the outlet tube 83. The possibility is further reduced.

[0041] As illustrated, tab 84 (Figures 8 and 9) extends from the side of base 67. This is possible, and the contents are received in each of the openings 86 (for example, in Figures 1 and 4) of the front part 53 of the cassette 5. It is inserted and configured to allow fitting 65 to be removably attached to cassette 5. This is possible. A pair of guide inclined sections 91 (Figures 6 and 7) within the side wall 61 face the opening 86. It can be narrowed into a funnel shape. The tab 84 on the fitting 65 is on the inclined portion 91. It moves along the opening 86 and is received by the fitting, which is then held in place by the cassette body 51. The stem holder 66 of fitting 65 is formed on the main body 51 of cassette 5. It is received by the valve holder 98 (Figure 7). Alternatively, fitting 65 is, It can be formed integrally with the cassette body 51 or omitted.

[0042] Referring to Figures 5 and 7, the notches 85A and 85B are the inlet points of fitting 65. To receive the second mounting portions 75A and 75B and the outlet tube 83 of part 69, respectively A positioning wall 87 may be formed on the upper wall 63 of the cassette body 51. It can extend vertically near the section. The T-shaped wall 89 is roughly between the side walls 61. It may be positioned in the center of the body 51. The base 67 of the fitting 65 engages with the positioning wall 87. The central extension of the T-shaped wall 89 is then received within the recess 90 (Figure 9) of the base 67. The engagement between the central extension and the recess 90 is the lateral connection of the fitting 65 within the cassette 5. To prevent or at least obstruct movement. The horizontal portion of the T-shaped wall 89 is inside the cassette 5. This restricts the downward movement of fitting 65.

[0043] The arc-shaped wall 95 is positioned roughly in the center of the cassette body 51, and the cassette 5 is placed in the housing 3. Rotor recess for receiving at least a portion of the rotor 37 of pump 1 when installed. To define 97 at least partially, it can be positioned roughly in the center of the cassette body 51. The rotor recess 97 may include a bump-out 99 at the front 53 of the cassette body 51. (Figure 4). The entrance and exit outer curved guide walls 101 extend roughly parallel to both sides of the arc wall 95. It can be done. The inlet and outlet inner curved guide wall 103 is the inlet and outlet outer curved guide. Extending upward from the arc-shaped wall 95 roughly parallel to the wall 101, and each inlet of the tube 45 It is possible to form an inlet and outlet opening to receive and support the outlet portion. The id walls 101, 103 and the arc wall 95 are connected to the housing 3 where the cassette 5 is attached. In order to properly position the tube relative to the rotor 37, the lower part of the tube 45 is made into a loop shape. A tube channel can be formed to receive into it. Arc wall 95 and curved guy The walls 101 and 103 receive the tube in a relationship that is in close contact with the sides of the rotor recess 97. Tab 100 extends over the tube channel and connects to tube 45. The tube 45 is held within the channel and within the cassette, and the third axis is followed by the tube 45. The tube can be restrained. The outer curved guide wall 101 allows the tube 45 to be positioned in the rotor recess 9 The rotor is generally positioned so that it does not directly face the guide walls 101, 103 or the arc wall 95 at the bottom of 7. It can terminate on the lower side of the recess 97.

[0044] Insert 105 secures the cassette 5 and tube 45 within the cassette recess 6. It can be received into the cassette recess 6 within the housing 3 for usefulness (Figure 3). Insert 105 is curved when cassette 5 is mounted in housing 3. It will be accepted in the rear cavity of cassette 5, above track guide walls 101 and 103. Therefore, it can be positioned within the recess 6. The insert 105 receives the inlet portion of the tube 45. A pair of opposing first projections 107 are positioned on the inlet side of the insert to allow insertion, and A pair of opposing second inserts are positioned on the exit side of the insert to receive the exit portion of the tube. It may be equipped with a projection 109. The rib 111 of the rear 55 of the cassette body 51 (Figure 6 and As shown in Figure 7), the second projection 109 engages with the outlet portion of the tube 45, and the inlet and outlet portions It can be positioned to help insert between the protrusions. The fluid flow in tube 45 A directional mark 112 may be placed on at least one of the second projections 109. In the application form, mark 112 is in the shape of an arrow.

[0045] Referring to Figures 5-7, the stator member 113 is located approximately below or near the rotor recess 97. It is located in the cavity, such as the stator opening 115, at the bottom of the cassette body 51. Therefore, when the cassette 5 is attached to the housing 3, the stay The component 113 is generally positioned facing the lower part of the rotor 37. In this configuration, the stator member 113 engages with the tube as described below. When doing so, the tube 45 of the supply set 7 can be supported. In some cases, the stay The stator member 113 may have an arc shape extending along the length of the stator member. Similar to the embodiment shown schematically, the stator member 113 is attached to the cassette body 51 at its first end. It is fixed only and at least partially within the stator opening 115 relative to the cassette body 51 It can be a cantilever member that can float freely. As shown in the figure with respect to the center, it is flexible. The stator member 113 rotates around its connection point or anchor to the rest of the cassette 5. It can be rotated and flattened. For example, the stator member is attached to the cassette body. The fixed first end and the reaction segment having the surface of the stator member have a deflection displacement. It has an unfixed second end that can float or be displaced so as to be able to This is possible. For example, at least one roller rotates around the rotor's axis of rotation while As it moves along the tube, the flexible stator member 113 moves in a row around the axis of rotation. During rotation, the roller 43 reacts to the force applied by one or more rollers 43 to displace in a deflection manner. It can bend or flex.

[0046] The lateral ribs 116 on the lower surface of the first part provide structural rigidity to the flexible stator member 113. This allows for easy removal of the cantilevered member from the mold cavity, etc. It can function as a contact surface. In the illustrated embodiment, the flexible stator member 11 3 can be integrally formed as a single unit with the cassette body 51. However, The flexible stator member 113 is formed separately from the cassette body 51 and is formed by appropriate means It can be attached to the cassette body. For example, a flexible stator (not shown) can be attached to the cassette body. It may have an elongated extension that engages with the engagement cavity of the body, and the engagement cavity is Accordingly, the dimensions and shape are made to accommodate the extension. In this way, the stator section The material is selected from several candidates with different mechanical properties such as modulus of elasticity and radius of curvature, and the tube Adjust the cassette operation parameters, taking into account or not taking into account any of the characteristics, and pumping It can provide specific fluid performance attributes during operation.

[0047] A stopper 117 is positioned on the bottom surface of the stator opening 115, and the flexible stator member 113 The floating motion can be limited to the maximum displacement. The stopping section 117 controls the plastic deformation of the stator member. To prevent bending of the stator member that causes this, a flexible stator member 113 is provided on the lower side They can be arranged at intervals. For example, the stopping member can be positioned with respect to the deflection displacement distance of its unfixed end. The size of the stop unit 1 can be positioned to limit the maximum displacement. In the illustrated embodiment, the stop unit 1 17 is formed as part of the cassette body 51. However, the stop unit 117 is It is formed separately from the cassette body 51 and can be attached to the cassette body in an appropriate manner. In other cases, the stop portion 117 is formed in the housing 3, and the flexible stator member 113 changes The position may be configured to limit the maximum displacement. The stopper 117 is configured such that the stopper is located on the stator member The width of the flexible stator member 113 is greater than the width of the flexible stator member 113 to provide a surface area sufficient to restrict movement. It can also have a large width. The stopping part 117 protects the flexible stator member 113. This can be helpful in that the component 113 can be hooked or caught. The dimensions are designed to prevent or reduce the risk of damage.

[0048] Before attaching cassette 5 to pump housing 3, the inlet tube 77 and outlet tube The B83 can be attached to the cassette's input port 69 and output port 71, respectively. To attach the cassette 5 to the pump housing 3, the lower part 59 of the cassette body 51 One or more pins or raised projections 119 are placed in the slot 12 at the bottom of the recess 6 of the housing 3. It can be inserted into 4. The engagement between the raised projection 119 and the slot 124 is generally Set 5 is placed in housing 3. Next, the cassette body 51 is placed on the top of the cassette body. The shelf-like portion 123 of the tab 125 located at 57 is caught by the catch 127 at the top of the recess 6. It can rotate upward until it is caught. In the illustrated embodiment, the raised projection 119 The shelf-like portion 123 is integrally formed with the cassette body 51. However, The projection 119 and shelf-like portion 123 are formed separately from the cassette body 51, and the cassette body It can be attached in an appropriate manner. After attaching the cassette 5 to the pump housing 3, The pocket 128 within fitting 65 is generally directed towards one or more sensors 130 within pump 1. They are arranged in a coordinated manner. In this position, one or more sensors 130 are located in pocket 128 The orientation of any magnet 126 accepted into the pocket is detected, and the supply set The functional configuration of 7 can be identified. By knowing the functional configuration of supply set 7, Pump 1 is instructed which pumping routine to execute. The cassette 5 is then pumped. To remove it from wug 3, press down tab 125 and catch shelf-like part 123 127 It can be removed.

[0049] When cassette 5 is attached to pump housing 3, tube 45 of supply set 7 The roller 43 of pump 1 is positioned to engage. The roller 43 is a flexible stator The portion of the tube supported by member 113 engages with the tube 45. The engagement of the tube 45 causes the flexible stator member 113 to flex away from the rollers. It moves forward or backward. More specifically, this movement causes tube 45 to become a more linear shape. Even without it, it can be partially straightened, and roller 43 closes the tube in a semi-linear shape. This makes it possible to do so, unlike in the case of conventional pump rollers, tube 45 Instead of pulling and stretching, roller 43 slides along the tube, reducing tension. The tube is then sealed in this state. As a result, the roller 43 is positioned within the actual straight length of the tube 45. Generate aliquots that conform to the law. Thus, the calculated aliquot volume of pump 1. This closely matches the actual aliquot volume produced by the pump, resulting in a more accurate supply. To provide a salary.

[0050] When introducing elements of the present invention or preferred embodiments thereof, the articles "a", "an", and "t "he" and "said" are intended to mean that one or more elements are present. The terms "equip," "include," and "have" are intended to be comprehensive. This means that there may be additional elements besides those listed.

[0051] From this, it can be seen that several objectives of the present invention are achieved and other advantageous results are obtained. You should understand.

[0052] Various modifications can be made to the above configuration without departing from the scope of the present invention. Therefore, all matters included in the above description and shown in the attached drawings are to be interpreted as illustrative examples. The intention is not to imply a restrictive meaning.

Claims

1. A pumping device that has a pumping system that engages with the pump set. It's a set, The cassette can be released to the pumping device in order to attach it to the pumping device. A cassette body configured to be attached to a cassette, comprising at least one mounting form A cassette body having, At least the mounting structure on the cassette body attaches to the cassette body. Both are a single identification member, and the identification member and the mounting structure are multiple identification members. It is formed to be attached in one of a number of predetermined orientations, and each predetermined orientation is as described above Identification members and A cassette equipped with [a specific feature / feature].

2. The cassette body further comprises a fitting, The cassette according to claim 1, comprising the at least one mounting structure.

3. The fitting further comprises a tube, and the fitting includes an inlet port and an outlet port, The tube is connected to the outlet port, as described in claim 2 of the cassette. 。

4. The at least one identification member is a magnet magnetized in the axial direction, and the plurality of predetermined The orientations are such that one of the N pole and S pole of the magnet faces the first direction, and the N pole and Claim 1 includes a case in which one of the S poles points in a second direction opposite to the first direction. The cassette as described.

5. The at least one identification member is a magnet magnetized in the diametrical direction, and the plurality of predetermined The cassette according to claim 1, wherein the orientation includes a plurality of angular positions of the magnet.

6. The at least one identification member consists of a single identification member and The mounting structure is configured to exhibit up to eight different functional configurations, as described in claim 1. A cassette tape.

7. The at least one identification member includes a magnet, and the at least one mounting form is The cassette according to claim 1, including a pocket inside the cassette body.

8. The pump set further comprises multiple identification members, and the identification members provide the functional configuration of the pump set. Supply, supply / washing, supply Wi-Fi, supply / washing Wi-Fi, newborn supply, newborn supply / washing It will be indicated as one of the following: Clean, Neonatal Supply Wi-Fi, and Neonatal Supply / Wash Wi-Fi. The cassette according to claim 1, wherein the urchin is positioned and arranged on the cassette body.

9. The cassette body further comprises a tube, and the cassette body receives at least a portion of the tube. A cassette according to claim 1, defining a housing having an internal structure.

10. A fitting assembly used in the cassette of a pump set, A main unit having an inlet port and an outlet port, which can be attached to the cassette. The main body is composed of the following, To illustrate the functional configuration of the pump set, at least one of the following is attached to the main body: Identification member and A fitting assembly equipped with [a specific feature].

11. The main body further comprises a pocket formed therein, and the at least one identification member is the The fitting assembly according to claim 10, comprising a magnet accepted in a pocket.

12. The at least one identification member comprises a magnet magnetized in the axial direction and a magnetized in the diametrical direction. The fitting assembly according to claim 10, wherein one of the magnets is a magnet.

13. This is a method for assembling a cassette. A pumping device that has a pumping system to engage with the pump set. To provide a set, To illustrate the functional configuration of the pump set, at least one identification member is shown on the cassette. To attach it to A method that includes this.

14. The identification member is a magnet, and at least one of the identification members is attached to the cassette. This is because one of the N pole and S pole of the magnet indicates the functional configuration of the pump set. A direction away from the cassette, as identified by a sensor in the pumping device. The method described in claim 13 includes selectively attaching the magnet to the cassette in a facing position. Method of loading.

15. The at least one identification member is used to indicate the functional configuration of the pump set. A magnet magnetized in the diametrical direction so as to be identified by an angle magnet sensor in the pumping device A method according to claim 13.

16. A flow control system, A flow control device including a pumping device and a sensor, A pump set including a cassette and a tube attached to the cassette. Equipped with, The cassette is used to attach the cassette and the tube to the flow control device. It is configured to be removably attached to the flow control device, The cassette comprises at least one mounting structure and the mounting structure in front of It has at least one identification member attached to the cassette, The identification member and the mounting structure are positioned in one of a plurality of predetermined orientations. It is designed to be attached with just one offset, Each predetermined orientation represents a different functional configuration of the pump set. The sensor is used to identify the functional configuration of the pump set, and at least one of the sensors is used to identify the functional configuration of the pump set. A system configured to detect the presence and orientation of an identification member.

17. The at least one identification member is a magnet magnetized in the axial direction, and the plurality of predetermined directions The first is a magnet in which one of the north pole and south pole of the magnet faces the first direction, and the second is a magnet in which the north pole and south pole of the magnet face the first direction. The sensor includes one of which poles faces a second direction opposite to the first direction, and the sensor is The system according to claim 16, comprising a Hall effect sensor.

18. The at least one identification member is a magnet magnetized in the diametrical direction, and the plurality of predetermined The system according to claim 16, wherein the orientation includes a plurality of angular positions of the magnet.

19. The system according to claim 18, wherein the sensor includes an angle magnet sensor.

20. The flow rate control device comprises a plurality of sensors, each sensor being a functional component of the pump set. Claim 1, configured to detect the presence and orientation of the identification member in order to identify the component The system described in section 6.

Images