Syringe stand

Abstract

To provide an apparatus and method for delivering fluid from a syringe to a subject by using a pumping device of a flow control apparatus.SOLUTION: A method includes: locating a flow control apparatus on a horizontal support surface; providing a syringe with a volume of fluid including a total amount of preferred nutrient and an amount of non-preferred nutrient liquid; mounting the syringe relative to the flow control apparatus whereby the syringe is oriented in a generally vertical orientation so that an outlet of the syringe faces upward; and initiating operation of a pumping device to draw the fluid from the syringe for a duration of time in order to preferentially deliver at least a portion of the total amount of preferred nutrient in the fluid to the subject.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention generally relates to delivering fluid from a syringe, and more specifically to a pump set, a syringe stand, a syringe assembly, a flow control device, and related methods for delivering fluid from a syringe.

Background Art

[0002] Cross - Reference to Related Applications This application claims priority to U.S. Non - Provisional Patent Application No. 16 / 686,002, filed on November 15, 2019, which is currently pending, and also claims priority to U.S. Provisional Patent Application No. 62 / 814,989, filed on March 7, 2019, which is currently pending. The entire disclosures of both of them are hereby incorporated by reference in their entirety.

[0003] Administration of drugs or nutrients to patients who are unable to ingest them orally can be done by using a peristaltic flow control system. Generally, in such a system, the fluid is delivered to the patient by a pump set that includes a flexible elastomeric tube placed 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 that includes a rotor operably engaged to a motor via a gearbox. The rotor drives the fluid through the flexible tube of the pump set by a peristaltic action caused by reversible compression, for example, caused by the impact of one or more rollers on the rotor, such as by pinching. The rotation of the rotor gradually compresses the elastomeric tube that drives the fluid at a controlled speed. The pump set is the flow through the pump set It can have a valve mechanism to enable or prevent the communication of the body's flow. Flow The rate control system can also have a controller that operably adjusts one or more motors that effectively control the flow of the fluid.

[0004] A peristaltic pump operates by delivering fluid in small amounts called "aliquots." The rotor engages the elastomeric tube of the pump set, pinches off a portion of the elastomeric tube, and pushes the fluid forward at a pick-up location, for example, closer to the patient than the fluid source towards the patient. Generally, the volume of fluid administered to the patient is controlled within the pump by counting the number of aliquots, each of which is substantially the same volume, and stopping when the number reaches a quantity corresponding to the desired total volume of fluid to be delivered. Peristaltic pumps are very useful for administering drugs and therapeutic fluids to patients because they are hygienic and generally accurate. Summary of the Invention Means for Solving the Problems

[0005] In one aspect, a method of delivering fluid from a syringe to a subject using a pump device of a flow rate control device generally includes placing the flow rate control device on a horizontal support surface. Providing a syringe with an amount of fluid that includes a total amount of a preferred nutrient and an amount of an undesirable nutrient solution. Attaching the syringe to the flow rate control device such that the syringe is generally vertically oriented with the outlet of the syringe facing upward. Starting the operation of the pump device to draw fluid from the syringe for a certain period of time. At least 40% of the total amount of the preferred nutrient in the fluid is drawn from the syringe by the pump device ​​​​​​​​​​​​​To be delivered from the syringe within the first one-third of the time of operation to draw out the fluid , deliver at least a portion of the amount of fluid from the syringe to the subject.

[0006] In another aspect, a syringe stand for supporting a syringe including a barrel having an outlet and a plunger received at an end of the barrel opposite the outlet generally comprises a base for supporting the syringe stand on a horizontal support surface. A holder secures the syringe to the syringe stand. The holder is attachable to the base and is selectively positionable relative to the base to orient the syringe in at least two different positions.

[0007] In yet another aspect, a flow control device for use with a pump set to deliver fluid from a source through the pump set to a subject generally comprises a pump device capable of acting on the pump set to generate a flow of fluid within the pump set during a supply cycle. A controller is in communication with the pump device to control the operation of the pump device in a supply arrangement for generating a flow of fluid within the pump set. The controller includes a processor and a memory. The controller is configured to store in the memory a selected flow rate and a desired amount of fluid. The controller is configured to execute within the processor a supply time corrector to adjust a supply time for operating the pump device to deliver fluid through the pump set during a supply cycle in view of a detected deviation of an actual flow rate from the selected flow rate from the source.

[0008] In yet another aspect, for a flow control device including a pump system, an attachment to the device A support for engaging with a pump set generally comprises a base for receiving at least a portion of a flow control device. The base is configured to support the flow control device on a horizontal support surface, whereby the flow control device is generally oriented in a horizontal direction. At least one adjustable leg of the base is configured to change the angular orientation of the base relative to a horizontal axis when the base is supported on the horizontal support surface, whereby the angular orientation of the flow control device is changed when the flow control device is received in the base. The base is configured to support the flow control device on a horizontal support surface, whereby the flow control device is generally oriented in a horizontal direction. At least one adjustable leg of the base is configured to change the angular orientation of the base relative to a horizontal axis when the base is supported on the horizontal support surface, whereby the angular orientation of the flow control device is changed when the flow control device is received in the base. At least one adjustable leg of the base is configured to change the angular orientation of the base relative to a horizontal axis when the base is supported on the horizontal support surface, whereby the angular orientation of the flow control device is changed when the flow control device is received in the base. At least one adjustable leg of the base is configured to change the angular orientation of the base relative to a horizontal axis when the base is supported on the horizontal support surface, whereby the angular orientation of the flow control device is changed when the flow control device is received in the base. At least one adjustable leg of the base is configured to change the angular orientation of the base relative to a horizontal axis when the base is supported on the horizontal support surface, whereby the angular orientation of the flow control device is changed when the flow control device is received in the base. BRIEF DESCRIPTION OF THE DRAWINGS

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[0035] Corresponding reference numerals indicate corresponding parts throughout the drawings.

DETAILED DESCRIPTION OF THE INVENTION

[0036] One or more aspects of the present invention relate to peristaltic pumps, such as rotary peristaltic pumps, and in particular to patients (e.g., Accurately detect and control the amount of fluid delivered to an infant and maximize nutrient delivery to the patient A supply set assembly attachable to a rotary peristaltic pump for providing a fluid delivery device Relates to. Any one or more advantageous features or structures that provide or facilitate any one or more of such features can be implemented in peristaltic pumps used in various commercial and industrial applications Accordingly, the detailed description is directed to an enteral nutrition pump having a supply set assembly including a cassette, but any one or more features of the present invention can be embodied or implemented in other peristaltic pumps For example, the pump discussed illustratively is a rotary peristaltic enteral nutrition pump, but the present invention applies to other types of peristaltic pumps (not shown) including medical infusion pumps Also, one or more of the various features and aspects of the present invention can be implemented in a peristaltic pump using a mechanism other than a roller, such as a linear peristaltic pump, without departing from the scope of the present invention Furthermore, a supply set assembly (not shown) without a cassette can also be used within the scope of the present invention Here, referring to the drawings, particularly FIGS. 1 - 6, an exemplary enteral nutrition pump (broadly, a "flow control device") constructed in accordance with any one or more of the principles of the present invention is shown generally at 1 The supply pump can include a housing generally designated 3 configured to attach a cassette generally designated 5 of a supply set assembly (broadly, a "pump set") generally designated 7 The supply set assembly 7 can include a syringe assembly 12 connected to the cassette 5 via a tube 77 The cassette 5 of the supply set assembly 7 can be removably attached to the housing 3

[0037] Here, referring to the drawings, particularly FIGS. 1 - 6, an exemplary enteral nutrition pump (broadly, a "flow control device") constructed in accordance with any one or more of the principles of the present invention is shown generally at 1 The supply pump can include a housing generally designated 3 configured to attach a cassette generally designated 5 of a supply set assembly (broadly, a "pump set") generally designated 7 The supply set assembly 7 can include a syringe assembly 12 connected to the cassette 5 via a tube 77 The cassette 5 of the supply set assembly 7 can be removably attached to the housing 3 The supply set assembly 7 can include a syringe assembly 12 connected to the cassette 5 via a tube 77 The cassette 5 of the supply set assembly 7 can be removably attached to the housing 3 The cassette 5 of the supply set assembly 7 can be removably attached to the housing 3​ is achievable. In the illustrated embodiment, the cassette shell 9 of the cassette is removably received in the cassette recess 6 (FIG. 4) of the housing 3. Naturally, the "housing" used herein includes, but is not limited to, support structures (not shown) in many forms that do not include a multi-component structure and do not surround or accommodate the operating components of the pump 1, and it is possible to include such structures. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. is removably received within the cassette recess 6 (FIG. 4) of the housing 3. Of course, the "housing" used herein includes, but is not limited to, support structures (not shown) in many forms that do not include a multi-component structure and do not surround or accommodate the operating components of the pump 1, and it is possible to include such structures. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. The "housing" used herein includes, but is not limited to, support structures (not shown) in many forms that do not include a multi-component structure and do not surround or accommodate the operating components of the pump 1, and it is possible to include such structures. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. The "housing" used herein includes, but is not limited to, support structures (not shown) in many forms that do not include a multi-component structure and do not surround or accommodate the operating components of the pump 1, and it is possible to include such structures. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. The pump 1 can also have a display screen 10 on the housing 3 that can display information regarding the state and operation of the pump. Also, various aspects and features of the present invention can be implemented without the recess 6. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. One or more buttons 11 can be provided that can be proximate to the display screen 10 for use in controlling the pump 1 and obtaining information from the pump 1, and one or more light-emitting diodes 13 can provide information on the state of the pump. is achievable.

[0038] The display screen 10 can be a part of the front panel (shown as 19 as a whole) of the housing 3 and can be removably attached to the housing. The enteral nutrition pump can further include a pump unit (shown as 23 as a whole in FIGS. 3 and 4) that includes a pump motor 27 (FIG. 19) connected to a rotor shaft (not shown). A battery (not shown) can be received within the housing 3 to supply power to the pump motor. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors. The display screen 10 can be a part of the front panel (shown as 19 as a whole) of the housing 3 and can be removably attached to the housing. The enteral nutrition pump can further include a pump unit (shown as 23 as a whole in FIGS. 3 and 4) that includes a pump motor 27 (FIG. 19) connected to a rotor shaft (not shown). A battery (not shown) can be received within the housing 3 to supply power to the pump motor. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors. The enteral nutrition pump can further include a pump unit (shown as 23 as a whole in FIGS. 3 and 4) that includes a pump motor 27 (FIG. 19) connected to a rotor shaft (not shown). A battery (not shown) can be received within the housing 3 to supply power to the pump motor. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors. The enteral nutrition pump can further include a pump unit (shown as 23 as a whole in FIGS. 3 and 4) that includes a pump motor 27 (FIG. 19) connected to a rotor shaft (not shown). A battery (not shown) can be received within the housing 3 to supply power to the pump motor. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors. A battery (not shown) can be received within the housing 3 to supply power to the pump motor. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors. In addition to or in addition to the battery, the pump can be energized using a power source to drive the pump unit through the rotor shaft, including one or more prime motors.

[0039] The pump unit 23 can include a rotor (shown as a whole in FIGS. 3 and 4) that can be connected to the rotor shaft. It has a rotor 37 (shown by て37). The rotor 37 includes an inner disk 39, an outer disk 41, and four rollers 43 (only three of which are shown) attached between the inner disk and the outer disk for rotating with respect to the disks about their longitudinal axes. It can include. When the cassette 5 is attached to the housing 3, the rollers 43 engage with a tube 45 (Figure 3) of the supply set assembly 7 that forms part of the cassette 5 to deliver fluid to the target through the supply set assembly 7. For example, a nutrient solution (e.g., , breast milk and / or fortifier) can be supplied to an infant using the pump 1, the cassette 5, and the supply set assembly 7. Other fluids can also be delivered using the pump 1 without departing from the scope of the present disclosure. In the illustrated embodiment, the fluid in the syringe 14 is drawn out of the syringe by a vacuum pressure applied by the pump unit 23. However, some aspects of the present invention have equivalent uses when the fluid from the syringe 14 is delivered from the syringe by other methods, such as pushing a plunger into the barrel of the syringe. Referring to FIGS. 5 and 6, the cassette shell 9 includes a cassette body 51 having a front portion 53, a rear portion 55, an upper portion 57, and a lower portion 59. Side walls 61 and an upper wall 63 extend from the rear portion 55 of the cassette body 51 to form a rear cavity configured to receive a fitting 65. The tube 45 can be removably attached to the fitting 65. The fitting 65 can have a tab 88 that allows the fitting 65 to be fixed or snap - fastened to the cassette. In some cases, When the fluid from the syringe 14 is delivered from the syringe by other methods, such as pushing a plunger into the barrel of the syringe, etc., it has equivalent uses. Referring to FIGS. 5 and 6, the cassette shell 9 includes a cassette body 51 having a front portion 53, a rear portion 55, an upper portion 57, and a lower portion 59. Side walls 61 and an upper wall 63 extend from the rear portion 55 of the cassette body 51 to form a rear cavity configured to receive a fitting 65. The tube 45 can be removably attached to the fitting 65. The fitting 65 can have a tab 88 that allows the fitting 65 to be fixed or snap - fastened to the cassette. In some cases,

[0040] Referring to FIGS. 5 and 6, the cassette shell 9 includes a cassette body 51 having a front portion 53, a rear portion 55, an upper portion 57, and a lower portion 59. Side walls 61 and an upper wall 63 extend from the rear portion 55 of the cassette body 51 to form a rear cavity configured to receive a fitting 65. The tube 45 can be removably attached to the fitting 65. The fitting 65 can have a tab 88 that allows the fitting 65 to be fixed or snap - fastened to the cassette. The tube 45 can be removably attached to the fitting 65. The fitting 65 can have a tab 88 that allows the fitting 65 to be fixed or snap - fastened to the cassette. The fitting 65 can have a tab 88 that allows the fitting 65 to be fixed or snap - fastened to the cassette. The fitting 65 can have a tab 88 that allows the fitting 65 to be fixed or snap - fastened to the cassette. In some cases, The fitting can be removably fixed to the cassette.

[0041] Referring to FIG. 6, the fitting 65 includes a base 67, an inlet port 69, and an outlet port 71. The inlet port 69 can include a first attachment portion 73 for insertion of the inlet end of the tube 45, and a pair of second attachment portions 75A, 75B for receiving an inlet tube 77 (FIG. 3). The outlet port 71 can include a first attachment portion 79 for engagement or attachment by insertion of the outlet end of the tube 45, etc., and a second attachment portion 81 for attachment to the outlet tube 83 by receiving the outlet tube 83, etc. The second attachment portion 75A can be in fluid communication with a supply source (e.g., syringe 14), and the second attachment portion 75B can be in fluid communication with a cleaning source (e.g., a cleaning fluid bag) via the inlet tube 77. Alternatively, the second attachment portion 75B can be attached to the supply source and the second attachment portion 75A can be attached to the cleaning source. Alternatively, the fitting 65 can be integrally formed with or omitted from the cassette body 51. Also, when the supply of nutrient solution (e.g., breast milk) is completed through the second attachment portion 75A, the second attachment portion 75B can be opened to the atmosphere so that air can be sucked through the breast milk line to clean the line. This prevents breast milk from remaining in the tube and being wasted. The second attachment portions 75A and 75B can be interchanged, such that breast milk is supplied through the second attachment portion 75B and the cleaning operation is performed through the second attachment portion 75A without departing from the scope of the present disclosure. ​​​​​​​​​​​​​​

[0042] The inlet tube 77, the tube 45, the fitting 65, and the outlet tube 83 are considered to be part of the supply set assembly 7. The cassette 5 is considered to be part of the supply set assembly 7 for the purposes of this description. The syringe 14 may also be considered to be part of the supply set assembly 7. However, a supply set assembly that includes more or fewer components than those described herein is within the scope of the present invention.

[0043] In a preferred embodiment, the cassette shell 9 is made of a polymeric material such as polycarbonate. Referring to FIGS. 3 and 4, an insert 105 can be received in a cassette recess 6 within the housing 3 so as to assist in fixing the cassette shell 9 and the tube 45 within the cassette recess. The insert 105 can be arranged in the recess 6 such that when the cassette is attached to the housing 3, the insert 105 is received in a rear cavity of the cassette shell 9. The insert 105 can comprise a pair of opposing first protrusions 107 arranged on the inlet side of the insert for receiving the inlet portion of the tube 45 and a pair of opposing second protrusions 109 arranged on the outlet side of the insert for receiving the outlet portion of the tube. An indicator 112 indicating the direction of fluid flow within the tube 45 can be arranged on at least one of the second protrusions 109. In the illustrated embodiment, the indicator 112 is in the form of an arrow.

[0044] , a syringe holder 62 attached to a base for fixing the syringe 14 to the base comprises. The syringe 14 and the syringe holder 62 constitute a syringe assembly 12. The pump support 16 supports the syringe 14 against the pump 1 when the pump is attached to the pump support. More specifically, as will be described in more detail below, the pump support 16 is configured to direct the syringe in a plurality of angular directions. Alternatively, the pump support 1 6 may be configured as a syringe stand such that the holder receives and supports the syringe 14 but does not attach to and / or support the pump 1 .

[0045] The syringe 14 may be a conventional syringe including a barrel 18 that may be graduated and a plunger 20 slidably received within the barrel. In the illustrated embodiment, the syringe 1 4 includes a male thread 26 and a female tip 24 that defines an outlet 28 and a tip passage that communicates with the interior of the barrel 18. The female tip 24 is centered about the longitudinal axis LA of the syringe 14. The syringe 14 may have other configurations without departing from the scope of the present disclosure. For example, the syringe may have an eccentric tip such that the female tip is disposed off-center from the center of the longitudinal axis of the syringe. Still other syringe configurations are envisioned within the scope of the present disclosure.

[0046] Referring to FIGS. 1 and 9 - 11, the syringe connector 30 attaches the syringe 14 to the inlet tube 7 7 and fluidly connects the syringe to the inlet tube. The syringe connector 30 comprises a molded connector body integrally formed as a single part, generally indicated at 34. The connector body 3 4 is adapted to removably connect to the female tip 24 of the syringe 14. The syringe connection A continuous portion 38, a tube connection portion 40 fluidly connecting to a second attachment portion 75A of an inlet port 69 of the cassette 5 by receiving an end of the inlet tube 77, and a valve portion 41 configured to receive a valve or a plug 47 and remove a supply fluid from the syringe after delivery. The syringe connection portion 38 includes a male component 42 configured to form a liquid-tight seal with a female tip end 24 of the syringe 14 when inserted into the tip passage. An outer skirt 44 of the syringe connection portion 38 surrounds the male component 42 and includes a female thread 46 configured to engage with a male thread 26 of the female tip end 24. The syringe connector 30 defines an air passage 50 and an enteral fluid passage 52, respectively. The enteral fluid passage 52 fluidly connects the interior of the barrel 20 to the inlet tube 77. The air passage 50 is configured to fluidly connect the inlet tube 77 to the atmosphere and remove fluid from the inlet tube, as will be described in more detail below. The enteral fluid passage 52 has a first portion 52a extending generally along an axis A1 of the connector body 34 through the male component 42 of the syringe connection portion 38. A second portion 52b of the enteral fluid passage 52 leading to the inlet tube 77 extends through the first portion 52a and the tube connection portion 40 generally orthogonal to the axis A1 of the connector body. The air passage 50 has a first portion 50a extending along the axis A1 of the connector body 34 through the valve portion 41. A second portion 50b of the air passage 50 leading to the inlet tube 77 extends through the first portion 50a and the tube connection portion 40 generally orthogonal to the axis A1 of the connector body. The second portion 50b of the air passage 50 coincides with the second portion 52b of the enteral fluid passage 52 so as to occupy the same passage through the connector 30. Including a valve portion 41 configured to receive a valve or a plug 47 and remove a supply fluid from the syringe after delivery. The syringe connection portion 38 includes a male component 42 configured to form a liquid-tight seal with a female tip end 24 of the syringe 14 when inserted into the tip passage. An outer skirt 44 of the syringe connection portion 38 surrounds the male component 42 and includes a female thread 46 configured to engage with a male thread 26 of the female tip end 24. Including a male component 42 configured to form a liquid-tight seal with a female tip end 24 of the syringe 14 when inserted into the tip passage. An outer skirt 44 of the syringe connection portion 38 surrounds the male component 42 and includes a female thread 46 configured to engage with a male thread 26 of the female tip end 24. The syringe connection portion 38 includes a male component 42 configured to form a liquid-tight seal with a female tip end 24 of the syringe 14 when inserted into the tip passage. An outer skirt 44 of the syringe connection portion 38 surrounds the male component 42 and includes a female thread 46 configured to engage with a male thread 26 of the female tip end 24. An outer skirt 44 of the syringe connection portion 38 surrounds the male component 42 and includes a female thread 46 configured to engage with a male thread 26 of the female tip end 24. Including a female thread 46 configured to engage with a male thread 26 of the female tip end 24.

[0047] The syringe connector 30 defines an air passage 50 and an enteral fluid passage 52, respectively. The enteral fluid passage 52 fluidly connects the interior of the barrel 20 to the inlet tube 77. The air passage 50 is configured to fluidly connect the inlet tube 77 to the atmosphere and remove fluid from the inlet tube, as will be described in more detail below. The enteral fluid passage 52 has a first portion 52a extending generally along an axis A1 of the connector body 34 through the male component 42 of the syringe connection portion 38. A second portion 52b of the enteral fluid passage 52 leading to the inlet tube 77 extends through the first portion 52a and the tube connection portion 40 generally orthogonal to the axis A1 of the connector body. The air passage 50 has a first portion 50a extending along the axis A1 of the connector body 34 through the valve portion 41. A second portion 50b of the air passage 50 leading to the inlet tube 77 extends through the first portion 50a and the tube connection portion 40 generally orthogonal to the axis A1 of the connector body. The second portion 50b of the air passage 50 coincides with the second portion 52b of the enteral fluid passage 52 so as to occupy the same passage through the connector 30. The air passage 50 has a first portion 50a extending along the axis A1 of the connector body 34 through the valve portion 41. A second portion 50b of the air passage 50 leading to the inlet tube 77 extends through the first portion 50a and the tube connection portion 40 generally orthogonal to the axis A1 of the connector body. The second portion 50b of the air passage 50 coincides with the second portion 52b of the enteral fluid passage 52 so as to occupy the same passage through the connector 30. The second portion 50b of the air passage 50 coincides with the second portion 52b of the enteral fluid passage 52 so as to occupy the same passage through the connector 30.

[0048] Valve 47 is received in valve portion 41 of syringe connector 30 and connects air passage 50 to atmosphere. With the valve 47 received in the valve portion 41, during normal operation of the pump 1 3, whereby rotation of rotor 37 rotates syringe 14 to draw fluid from the syringe. A vacuum is created within the barrel 20 of the syringe 14. However, all of the fluid is delivered from the syringe 14. Even after the injection, there may still be fluid remaining in the inlet tube 77 that has not been pumped to the target. To deliver this portion of the fluid, valve 47 is opened, thereby opening air passage 5. 0 can be connected to the atmosphere. The atmosphere then passes through the air passage 50 and the inlet tube 77. This forces the fluid in the tubing through the line to the target. This ensures that all enteral fluid within vessel 14 is delivered to the subject. Valve 47 is then turned on. can be closed for subsequent delivery. In one embodiment, the valve 47 is When the pressure difference between the inside of the connector and the atmosphere reaches at least 8 psi, air is introduced into the connector 30. , one-way check valves such as duckbill valves. In one example, the pressure differential is about 8 psi to about 10 psi. When the rotor 37 reaches the position between the rotor 37 and the valve 47, the valve 47 can be opened. The tube 45 is rotated to an unobstructed position, and the air forces the fluid past the rotor. The body 34 of the syringe connector 30 can be broadly defined as an inlet. 7. The valve housing 47 may be considered as a valve housing containing the valve 47 for removing fluid from the outlet tube 77. This can be done.

[0049] 12 and 13, the pump support 16 supports the pump on a horizontal support surface such as a tabletop. A base 60 for supporting the body, and a syringe holder 62 for fixing the syringe 14 to the pump support. The holder 62 is attachable to the base 60 and is selectively positionable relative to the base to orient the syringe 14 in a plurality of different arrangements on the pump support 16. For example, the pump support 16 is configured to orient the syringe in a first arrangement (FIG. 15) in which the syringe is generally horizontally oriented, and a second arrangement (FIG. 1 6) in which the syringe is generally vertically oriented. The pump support 16 can be configured to orient the syringe 14 in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. The base 60 has a flat bottom surface 64 for placing the base on a horizontal support surface. Thus, the base 60 itself is not configured to change its angular position relative to a horizontal axis when on a horizontal support surface. A rear wall 66 extends upward from the bottom surface 64 and attaches the pump 1 to the base 60. A pair of side walls 68 extend laterally from the rear wall 66 and face both sides of the pump 1 when the pump is attached to the base 60. The rear wall 66 and the side walls 68 together define a receiving space 70 for the pump 1. A mount 101 can be disposed on the rear wall 66. In the illustrated embodiment, the mount 101 has a rounded triangular or arched shape and includes attachment flanges 103 that branch out on both sides of the mount The attachment flanges 103 of the mount 101 slide into and engage grooves 136 (FIG. 4A) formed on the back of the pump 1, and the pump 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. The base 60 has a flat bottom surface 64 for placing the base on a horizontal support surface. Thus, the base 60 itself is not configured to change its angular position relative to a horizontal axis when on a horizontal support surface. A rear wall 66 extends upward from the bottom surface 64 and attaches the pump 1 to the base 60. A pair of side walls 68 extend laterally from the rear wall 66 and face both sides of the pump 1 when the pump is attached to the base 60. The rear wall 66 and the side walls 68 together define a receiving space 70 for the pump 1. A mount 101 can be disposed on the rear wall 66. In the illustrated embodiment, the mount 101 has a rounded triangular or arched shape and includes attachment flanges 103 that branch out on both sides of the mount 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions.

[0050] The base 60 has a flat bottom surface 64 for placing the base on a horizontal support surface. Thus, the base 60 itself is not configured to change its angular position relative to a horizontal axis when on a horizontal support surface. A rear wall 66 extends upward from the bottom surface 64 and attaches the pump 1 to the base 60. A pair of side walls 68 extend laterally from the rear wall 66 and face both sides of the pump 1 when the pump is attached to the base 60. The rear wall 66 and the side walls 68 together define a receiving space 70 for the pump 1. A mount 101 can be disposed on the rear wall 66. In the illustrated embodiment, the mount 101 has a rounded triangular or arched shape and includes attachment flanges 103 that branch out on both sides of the mount 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. The base 60 has a flat bottom surface 64 for placing the base on a horizontal support surface. Thus, the base 60 itself is not configured to change its angular position relative to a horizontal axis when on a horizontal support surface. A rear wall 66 extends upward from the bottom surface 64 and attaches the pump 1 to the base 60. A pair of side walls 68 extend laterally from the rear wall 66 and face both sides of the pump 1 when the pump is attached to the base 60. The rear wall 66 and the side walls 68 together define a receiving space 70 for the pump 1. A mount 101 can be disposed on the rear wall 66. In the illustrated embodiment, the mount 101 has a rounded triangular or arched shape and includes attachment flanges 103 that branch out on both sides of the mount 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. The base 60 has a flat bottom surface 64 for placing the base on a horizontal support surface. Thus, the base 60 itself is not configured to change its angular position relative to a horizontal axis when on a horizontal support surface. A rear wall 66 extends upward from the bottom surface 64 and attaches the pump 1 to the base 60. A pair of side walls 68 extend laterally from the rear wall 66 and face both sides of the pump 1 when the pump is attached to the base 60. The rear wall 66 and the side walls 68 together define a receiving space 70 for the pump 1. A mount 101 can be disposed on the rear wall 66. In the illustrated embodiment, the mount 101 has a rounded triangular or arched shape and includes attachment flanges 103 that branch out on both sides of the mount 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. 14 can be oriented in a third arrangement (FIG. 18) in which the syringe is oriented at an angle between the horizontal and vertical directions. The pump support 16 can also be configured to orient the syringe in a further direction between the horizontal and vertical directions. The post 111 can be configured to mount the mount 1 to the base 60. 01 on the rear wall 66 to lock the pump 1 to the base 60. The rear wall 66 may have a receptacle for receiving a retainer (not shown) for the retainer. A notch 120 forms a handle on the base 60 for carrying the pump support 16. Wall 66 is attached to holder 62 and positions the holder relative to base 60 . In the illustrated embodiment, a plurality of holes 117 are formed in the rear wall 66 to secure the holder 62 to the base 60. The holder 62 is configured to receive a fastener 74 for mounting to the base 60. It will be appreciated that other means of attachment to the device may be utilized without departing from the scope of this disclosure. It will be.

[0051] A feed-through connector 76 is formed on the rear wall 66 within the cutout 120 and extends through the rear wall 66. The through connector 76 is a protrusion that extends forward on the connector 76 and enters the receiving space 70. A port 80 is formed in the rear side of the connector 76 and at least partially The port 80 passes power and data from the port to the plug. Thus, the connector 76 is in electrical communication with the plug 78 so that the signal can be transferred through the connector 76. The plug 78 is configured to connect to a port 82 on the back of the pump 1 (FIG. 4). A). Port 80 on base 60 is connected to pump support plug 78 which is connected to port 8 on pump 1. 2, power from the power cord is transmitted to both the pump support 16 and the pump 1. The power cord is configured to receive a plug (not shown) of a power cord so that the power cord can be In this embodiment, the through connector 76 is integrally formed with the base. The neck 76 is formed separately from the base 60 and can be suitably attached to the base. Also, a USB or other suitable connector (not shown) can be provided on the base 60. The USB conne ctor is configured to transfer data to the pump support 16 and the pump 1. For example, software updates can be transmitted to the pump support 16 and the pump 1 via the USB connector. In one embodiment, the USB connector is formed as part of the through connector 76.

[0052] Referring to FIGS. 12 and 14, the syringe holder 62 includes a floor 86, a rear wall 88 extending from the floor, and opposing side walls 90 extending laterally away from the floor from the rear wall. The floor 86, rear wall 88, and side walls 90 together define a receiving space 92 for at least a portion of the syringe 14. A first pair of flanges 94 extends from respective side walls 90 of the holder 62 near the top of the holder. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. from the first pair of flanges 94. Each side wall 90 has a recess 99 above the flange 94 that forms a second pair of flanges 96 spaced vertically from the first pair of flanges 94. A portion of the barrel 18 of the syringe 14 is received between the first pair of flanges 94 and the second pair of flanges 96. The flanges 94, 96 prevent lateral movement of the barrel 18 within the holder 62 along an axis parallel to the rear wall 88. A pair of rails 98 extends between the floor 86 and the first pair of flanges 94. A U-shaped plate 100 is fixedly disposed at the upper end of the rails 98, and a U-shaped slide 102 is disposed around the lower end of the rails and is configured to move or slide along the rails. A gap 104 is formed between the first pair of flanges 94 and the U-shaped plate 100. The gap 104 receives the flange 58 of the barrel 18 of the syringe 14. configured to receive (FIG. 7). The length of the gap 104 is slightly greater than the thickness of the flange 58. This holds the flange 58 in a fixed state between the flange 94 and the plate 100, thereby fixing the barrel 18 against longitudinal movement within the holder 62. Also, when the syringe 14 is received in the holder 62, the flange 44 of the plunger 20 is held between the lever 121 and the slide 102. For example, the lever 121 can be rotated to the left as shown in FIG. 14 and slid below the rail 98 to provide clearance for the plunger flange 44. The U-shaped configuration of the slide 102 and the plate 100 is sized and shaped to receive the rod of the plunger 20 therein. Then, the lever 121 can be rotated back to the right and slid above the rail 98 to fix the plunger flange 44 to the slide 102. As will be described in more detail below, the fluid withdrawn from the barrel 18 of the syringe 14 moves the plunger 20 away from the floor 86. The movement of the plunger 20 is guided by the slide 102 on the rail 98 such that the plunger moves along a substantially straight axis. Alternatively, the syringe holder can be configured to fix the longitudinal position of the plunger 20 and allow the barrel 18 to move relative to the plunger when fluid is withdrawn from the barrel. This also makes it slightly larger. This holds the flange 58 in a fixed state between the flange 94 and the plate 100, thereby fixing the barrel 18 against longitudinal movement within the holder 62. Also, when the syringe 14 is received in the holder 62, the flange 44 of the plunger 20 is held between the lever 121 and the slide 102. For example, the lever 121 can be rotated to the left as shown in FIG. 14 and slid below the rail 98 to provide clearance for the plunger flange 44. The U-shaped configuration of the slide 102 and the plate 100 is sized and shaped to receive the rod of the plunger 20 therein. Then, the lever 121 can be rotated back to the right and slid above the rail 98 to fix the plunger flange 44 to the slide 102. As will be described in more detail below, the fluid withdrawn from the barrel 18 of the syringe 14 moves the plunger 20 away from the floor 86. The movement of the plunger 20 is guided by the slide 102 on the rail 98 such that the plunger moves along a substantially straight axis. Alternatively, the syringe holder can be configured to fix the longitudinal position of the plunger 20 and allow the barrel 18 to move relative to the plunger when fluid is withdrawn from the barrel. The door or gate 106 is pivotally mounted between one of the first flange pair 94 and one of the second flange pair 96 and is movable between an open position that allows the syringe 14 to be received in the receiving space 92 and a closed position for holding the syringe in the receiving space. The door The fluid withdrawn from the barrel 18 of the syringe 14 moves the plunger 20 away from the floor 86. The movement of the plunger 20 is guided by the slide 102 on the rail 98 such that the plunger moves along a substantially straight axis. Alternatively, the syringe holder can be configured to fix the longitudinal position of the plunger 20 and allow the barrel 18 to move relative to the plunger when fluid is withdrawn from the barrel. The door or gate 106 is pivotally mounted between one of the first flange pair 94 and one of the second flange pair 96 and is movable between an open position that allows the syringe 14 to be received in the receiving space 92 and a closed position for holding the syringe in the receiving space. The door or gate 106 is pivotally mounted between one of the first flange pair 94 and one of the second flange pair 96 and is movable between an open position that allows the syringe 14 to be received in the receiving space 92 and a closed position for holding the syringe in the receiving space. when fluid is withdrawn from the barrel.

[0053] The door or gate 106 is pivotally mounted between one of the first flange pair 94 and one of the second flange pair 96 and is movable between an open position that allows the syringe 14 to be received in the receiving space 92 and a closed position for holding the syringe in the receiving space. The door or gate 106 is pivotally mounted between one of the first flange pair 94 and one of the second flange pair 96 and is movable between an open position that allows the syringe 14 to be received in the receiving space 92 and a closed position for holding the syringe in the receiving space. The door or gate 106 is pivotally mounted between one of the first flange pair 94 and one of the second flange pair 96 and is movable between an open position that allows the syringe 14 to be received in the receiving space 92 and a closed position for holding the syringe in the receiving space. After the door 106 has moved to the closed position, a sensor 108 (FIG. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. Alternatively, the controller 72 can automatically measure the size of the syringe 14 based on the position of the door 106. The connecting arm 110 extends from one side of the side wall 90 and is configured to attach the holder 62 to the base 60. Specifically, the connecting arm 110 includes a plurality of holes 113 corresponding to the holes 117 in the rear wall 66 of the base 60 so that the fastener 74 can be received through the holes to attach the holder 62 to the base. The size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. The size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user. 14) can be provided on the holder 62. Based on the position of the door 106, the size of the syringe 14 can be measured. For example, in response to the door 106 being positioned at a predetermined position indicating the size of the syringe 14 as a pre-programmed size stored in the memory 93, the controller 72 (FIG. 19) in the pump 1 can start a prompt that requires confirmation by the user.

[0054] Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. The contact 114 of the potentiometer 115 is disposed on a movable part of the holder 62 such as the slide 102, and the contact moves along the potentiometer 115 as the slide moves. Since the barrel 18 is held fixed within the holder 62, when fluid is withdrawn from the barrel, the plunger 20 moves into the barrel. The flange 44 of the plunger 20 engages the slide 102 as the plunger moves into the barrel 18, causing the slide to move along the rail 98. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Referring to FIGS. 1 and 14, a sensor 115 can be attached to the rear wall 88 to detect the movement of the plunger 20. In the illustrated embodiment, the position sensor 115 includes a linear resistive potentiometer. Thus, in this embodiment, the movement of contact 114 represents the movement of plunger 20 relative to barrel 18 and holder 62 caused by the supply fluid being withdrawn from syringe 14. In other words, the movement of contact 114 corresponds to the distance that plunger 20 has entered into barrel 18. Since the cross-sectional area of the inner cavity of barrel 18 is known from the detection of the size of the syringe, potentiometer 115 can be calibrated such that the movement of contact 114 indicates the amount of fluid discharged from syringe 14. Specifically, by knowing the inner diameter of barrel 18 of syringe 14, in combination with the distance that slide 102 / plunger 20 has moved, the amount of fluid delivered from syringe 14 can be measured. Potentiometer 115 can be electrically connected to controller 72 to receive a position signal from potentiometer 115 indicating the movement of slide 102. Controller 72 may be disposed within pump 1 or may be disposed away from pump 1 and communicate with pump 1. For example, controller 72 can be disposed within pump support 16. In an embodiment where plunger 20 is held stationary and barrel 18 moves relative to the plunger, the movement of the contact represents the movement of barrel 18. caused by the supply fluid being withdrawn from syringe 14. 20 relative to barrel 18 and holder 62. 18. Since the cross-sectional area of the inner cavity of barrel 18 is known from the detection of the size of the syringe, potentiometer 115 can be calibrated such that the movement of contact 114 indicates the amount of fluid discharged from syringe 1 4. Specifically, by knowing the inner diameter of barrel 18 of syringe 14, in combination with the distance that slide 102 / plunger 20 has moved, the amount of fluid delivered from syringe 14 can be measured. Potentiometer 115 can be electrically connected to controller 72 to receive a position signal from potentiometer 115 indicating the movement of slide 102. 4. 18, in combination with the distance that slide 102 / plunger 20 has moved, the amount of fluid delivered from syringe 14 can be measured. Potentiometer 115 can be electrically connected to controller 72 to receive a position signal from potentiometer 115 indicating the movement of slide 102. 14 can be measured. Potentiometer 115 can be electrically connected to controller 72 to receive a position signal from potentiometer 115 indicating the movement of slide 102. 115 can be calibrated such that the movement of contact 114 indicates the amount of fluid discharged from syringe 1 4. Specifically, by knowing the inner diameter of barrel 18 of syringe 14, in combination with the distance that slide 102 / plunger 20 has moved, the amount of fluid delivered from syringe 14 can be measured. Potentiometer 115 can be electrically connected to controller 72 to receive a position signal from potentiometer 115 indicating the movement of slide 102. Controller 72 may be disposed within pump 1 or may be disposed away from pump 1 and communicate with pump 1. 1. For example, controller 72 can be disposed within pump support 16. In an embodiment where plunger 20 is held stationary and barrel 18 moves relative to the plunger, the movement of the contact represents the movement of barrel 18. 16. In an embodiment where plunger 20 is held stationary and barrel 18 moves relative to the plunger, the movement of the contact represents the movement of barrel 18. 20 is held stationary and barrel 18 moves relative to the plunger, the movement of the contact represents the movement of barrel 18. 18.

[0055] Other position sensors are envisioned without departing from the scope of the present disclosure. For example, a linear magnetoresistive potentiometer (not shown) can be used. In this embodiment, an electromagnetic contactor can be attached to slide 102 or alternatively to a structure attached to plunger 20 to measure the movement of the slide / plunger. 115 can be calibrated such that the movement of contact 114 indicates the amount of fluid discharged from syringe 1 4. Specifically, by knowing the inner diameter of barrel 18 of syringe 14, in combination with the distance that slide 102 / plunger 20 has moved, the amount of fluid delivered from syringe 14 can be measured. Potentiometer 115 can be electrically connected to controller 72 to receive a position signal from potentiometer 115 indicating the movement of slide 102. Controller 72 may be disposed within pump 1 or may be disposed away from pump 1 and communicate with pump 1. In an embodiment where plunger 20 is held stationary and barrel 18 moves relative to the plunger, the movement of the contact represents the movement of barrel 18. Other position sensors are envisioned without departing from the scope of the present disclosure. 20 to measure the movement of the slide / plunger. The electromagnetic contactor attached to the jar has an electromagnetic contactor used with the pump system and requires a syringe. Further, an inductive position sensor (not shown) can be used . In yet another embodiment, a camera (not shown) can be used to monitor the movement of the plunger 20 . In this embodiment, the movement of any point on the syringe 14 (e.g., the plunger 20) can be tracked using image analysis software that communicates with the camera . The size of the syringe 14 can also be automatically detected using the camera and the image software . In yet another embodiment, a foil sensor or a non-magnetic sensor can be used . In a further embodiment, the fluid delivery amount can be measured by weight detection. Examples of position detection devices do not cover all those included in the scope of the present invention .

[0056] The exemplary supply set assembly 7 can be used for neonatal enteral nutrition supplementation to achieve metered fluid delivery using the enteral nutrition pump 1 . In such a method, the enteral fluid is drawn into the syringe 14 by pulling back the plunger 20. The amount of the enteral fluid can be measured using the scale marks on the barrel 18 of the syringe 14 . After filling the syringe 14 with an appropriate amount of enteral fluid, the syringe connector 30 can be attached to the syringe tip 24, such as by screwing the syringe connection portion 38 onto the syringe tip end 24. The tube connection portion 40 can also be connected to the inlet tube 77. Before attaching the cassette 5 to the pump housing 3, the inlet tube 77 can be connected to the outlet port 69, and the outlet tube 83 can be attached to the outlet port 71 of the cassette 5 .

[0057] ​​​To attach the cassette 5 to the pump housing 3, one or more pins or raised protrusions 119 (Fig. 5) located at the lower part 59 of the cassette body 51 of the cassette shell 9 can be inserted into slots 124 (Figs. 3 and 4) located at the lower part of the recess 6 of the housing 3. Due to the engagement between the raised protrusion 119 and the slot 124, the cassette shell 9 is generally placed on the housing 3. The cassette body 51 can then be rotated upward until the shelf portion 123 of the tab 125 located at the upper part 57 of the cassette body is captured by the catch 127 at the upper part of the recess 6 (Figs. 2 and 4). To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. The pump support 16 can be configured to arrange the syringe holder 62 in a plurality of different angular directions. On the other hand, the pump 1 and the base 60 of the pump support are horizontally supported on the support surface S to arrange the syringe 14 received in the syringe holder in the corresponding angular direction. Orienting the syringe 14 in a specific direction can be advantageous for delivering certain nutrients present in a certain amount of fluid in the syringe at the initial stage of the supply cycle. In one embodiment, the syringe 14 can be selectively positioned horizontally (Fig. 15), whereby the longitudinal axis LA of the syringe is generally oriented parallel to the horizontal axis when the syringe is received in the holder 62. This is achieved by attaching the connecting arm 110 of the holder 62 to the rear wall 66 of the base 60 at a first attachment position and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a first alignment direction. Insertable into the slot 124 (Figs. 3 and 4) at the lower part of the recess 6 of the housing 3. By the engagement between the raised protrusion 119 and the slot 124, the cassette shell 9 is generally placed on the housing 3. The cassette body 51 can then be rotated upward until the shelf portion 123 of the tab 125 at the upper part 57 of the cassette body is captured by the catch 127 at the upper part of the recess 6 (Figs. 2 and 4). To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. By the engagement between the raised protrusion 119 and the slot 124, the cassette shell 9 is generally placed on the housing 3. The cassette body 51 can then be rotated upward until the shelf portion 123 of the tab 125 at the upper part 57 of the cassette body is captured by the catch 127 at the upper part of the recess 6 (Figs. 2 and 4). To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. The cassette body 51 can then be rotated upward until the shelf portion 123 of the tab 125 at the upper part 57 of the cassette body is captured by the catch 127 at the upper part of the recess 6 (Figs. 2 and 4). To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. Until the shelf portion 123 of the tab 125 at the upper part 57 of the cassette body is captured by the catch 127 at the upper part of the recess 6 (Figs. 2 and 4). To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. Can be rotated upward (Figs. 2 and 4). To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. To remove the cassette 5 from the pump housing 3, the tab 125 can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. Can be pushed down to disengage the shelf portion 123 from the catch 127. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it. When the cassette 5 is attached to the pump housing 3, the tube 45 is arranged such that the roller 43 of the pump 1 engages it.

[0058] The pump support 16 can be configured to arrange the syringe holder 62 in a plurality of different angular directions. While the pump 1 and the base 60 of the pump support are horizontally supported on the support surface S to arrange the syringe 14 received in the syringe holder in the corresponding angular direction. Orienting the syringe 14 in a specific direction can be advantageous for delivering certain nutrients present in a certain amount of fluid in the syringe at the initial stage of the supply cycle. In one embodiment, the syringe 14 can be selectively positioned horizontally (Fig. 15), whereby the longitudinal axis LA of the syringe is generally oriented parallel to the horizontal axis when the syringe is received in the holder 62. This is achieved by attaching the connecting arm 110 of the holder 62 to the rear wall 66 of the base 60 at a first attachment position and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a first alignment direction. In one embodiment, the syringe 14 can be selectively positioned horizontally (Fig. 15), whereby the longitudinal axis LA of the syringe is generally oriented parallel to the horizontal axis when the syringe is received in the holder 62. Thereby the longitudinal axis LA of the syringe is generally oriented parallel to the horizontal axis when the syringe is received in the holder 62. This is achieved by attaching the connecting arm 110 of the holder 62 to the rear wall 66 of the base 60 at a first attachment position and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a first alignment direction. This is achieved by attaching the connecting arm 110 of the holder 62 to the rear wall 66 of the base 60 at a first attachment position and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a first alignment direction. Attaching the connecting arm 110 of the holder 62 to the rear wall 66 of the base 60 at a first attachment position and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a first alignment direction. This is done by being able to position the syringe 14 selectively in the vertical direction (FIG. 16), whereby the longitudinal axis LA of the syringe is generally parallel to the vertical axis such that the tip 24 of the syringe faces upward when the syringe is received in the holder 62 (FIG. 17). This is done by attaching the connecting arm 110 of the holder 62 to the rear wall 66 of the base 60 at a second attachment position different from the first attachment position and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a second alignment direction. When the nutrient solution held in the syringe 14 is, for example, breast milk M, by orienting the tip 24 of the syringe upward, the contents of the breast milk M are naturally separated, so that the fat F in the breast milk M rises to the upper part of the mixture, whereby the fat F is disposed closest to the outlet 28 of the syringe 14 relative to the fat-free liquid part of the breast milk. Therefore, the fat F, which is the most important part of the breast milk M for the infant, is delivered to the infant first. This does not occur when the syringe 14 is arranged such that the barrel 18 is oriented horizontally. In this orientation, the fat F of the breast milk M tends to accumulate at the upper part of the barrel 18 away from the tip 24, so that in the horizontal orientation, the watery contents of the breast milk M are delivered first. In many cases, a newborn can tolerate only a very small amount of breast milk in one feeding. Therefore, it is important for the newborn to ingest as much fat as possible as early as possible during feeding. Preferred nutrients other than fat can be expected to be preferentially delivered by the syringe 14 arranged at a vertical angular direction with the tip upward. For example, vitamins and / or minerals in the nutrient solution can be preferentially delivered in this angular direction. held in the syringe 14 If the nutrient solution held in the syringe 14 is, for example, breast milk M, by orienting the tip 24 of the syringe upward, the contents of the breast milk M are naturally separated, so that the fat F in the breast milk M rises to the upper part of the mixture, whereby the fat F is disposed closest to the outlet 28 of the syringe 14 relative to the fat-free liquid part of the breast milk. Therefore, the fat F, which is the most important part of the breast milk M for the infant, is delivered to the infant first. This does not occur when the syringe 14 is arranged such that the barrel 18 is oriented horizontally. In this orientation, the fat F of the breast milk M tends to accumulate at the upper part of the barrel 18 away from the tip 24, so that in the horizontal orientation, the watery contents of the breast milk M are delivered first. In many cases, a newborn can tolerate only a very small amount of breast milk in one feeding. Therefore, it is important for the newborn to ingest as much fat as possible as early as possible during feeding. Preferred nutrients other than fat can be expected to be preferentially delivered by the syringe 14 arranged at a vertical angular direction with the tip upward. For example, vitamins and / or minerals in the nutrient solution can be preferentially delivered in this angular direction. contents of the breast milk M are delivered first. In many cases, a newborn can tolerate only a very small amount of breast milk in one feeding. Therefore, it is important for the newborn to ingest as much fat as possible as early as possible during feeding. Preferred nutrients other than fat can be expected to be preferentially delivered by the syringe 14 arranged at a vertical angular direction with the tip upward. For example, vitamins and / or minerals in the nutrient solution can be preferentially delivered in this angular direction. held in the syringe 14 14 is arranged from the tip 24 and tends to accumulate at the upper part of the barrel 18, so that in the horizontal orientation, the watery contents of the breast milk M are delivered first. In many cases, a newborn can tolerate only a very small amount of breast milk in one feeding. Therefore, it is important for the newborn to ingest as much fat as possible as early as possible during feeding. Preferred nutrients other than fat can be expected to be preferentially delivered by the syringe 14 arranged at a vertical angular direction with the tip upward. For example, vitamins and / or minerals in the nutrient solution can be preferentially delivered in this angular direction. can tolerate. Therefore, it is important for the newborn to ingest as much fat as possible as early as possible during feeding. Other preferred nutrients than fat can be expected to be preferentially delivered by the syringe 14 arranged at a vertical angular direction with the tip upward. For example, vitamins and / or minerals in the nutrient solution can be preferentially delivered in this angular direction. held in the syringe 14

[0059] The pump support 16 is also configured to orient the syringe 14 in other angular directions. In one embodiment, the syringe 14 is selectively positionable in an oblique direction (FIG. 18), such that when the longitudinal axis LA of the syringe is received within the holder 62, the tip 24 of the syringe is disposed obliquely with respect to the vertical and horizontal axes so as to tilt upward. This is accomplished by attaching the connecting arm 110 of the holder 62 to a third attachment position different from the first and second attachment positions on the rear wall 66 of the base 60, and aligning the hole 113 of the connecting arm with the hole 117 of the rear wall in a third alignment direction. Orienting the syringe 14 in this way also enables natural separation of the breast milk contents within the syringe. In the illustrated embodiment, the syringe is oriented at an angle of approximately 40 degrees with respect to the horizontal axis. However, the syringe 1 4 can be disposed at other angles without departing from the scope of the present disclosure. In one embodiment the syringe 14 can be oriented at an angle between approximately 20 degrees and approximately 60 degrees with respect to the horizontal axis. In one embodiment, the syringe 14 can be oriented at an angle between approximately 20 degrees and approximately 40 degrees with respect to the horizontal axis.

[0060] In one embodiment, the pump support 16 can be attached to a vertical support such as an IV pole to orient the syringe 14 in a second vertical direction, such that the longitudinal axis L A of the syringe is generally parallel to the vertical axis such that the tip 24 of the syringe faces downward. For example, the pump support 16 can be set to any of the angular orientations of FIGS. 15, 16, and 18 and attached to the IV pole by a mount 129 on the back of the pump support. The pump support 16 is then operated (e.g., rotated or repositioned) to orient the syringe 1 4 can be oriented so that the tip 24 extends vertically with the tip facing downward. Syringe Orienting the syringe 14 in this way facilitates the delivery of the fortifier within the syringe 14 to the infant . This is because the nutrients within the fortifier sink to the lower portion of the barrel 20 of the syringe 14. Thus , when the tip 24 of the syringe 14 is located at the lower portion of the syringe 14, the nutrients from the fortifier are delivered first . Also, the pump support 16 can be set at any of the angular directions of FIGS. 15, 16, and 18 and, while attached to the vertical support, the pump support can be operated to orient the syringe 14 in any desired angular direction .

[0061] In one embodiment, the pump support 16 is configured such that the orientation of the syringe holder 62 cannot be changed while the pump 1 is received within the pump support . Thus, the syringe holder 62 must remain in the selected orientation after the operation of the pump 1 is started . Thus, to change the orientation of the syringe holder 62, the pump 1 must be removed from the pump support 16 and a tool is required to remove the syringe holder 62 from the base 60 and reposition the syringe holder as desired . In one embodiment, the pump support 16 must be returned to the hospital's biotechnology department or the manufacturer to change the position of the syringe holder 62 .

[0062] Referring to FIGS. 20 and 21, it has been found that when delivering breast milk to an infant, directing the tip 24 of the syringe upward significantly increases the delivery of fat during the initial stages of delivery . In a comparative study, a center tip syringe filled with breast milk was used at different times during the breastfeeding cycle . ​​​​It was directed to an angular position and the amount and time of fat delivery were monitored throughout the delivery process. Specifically, in this study, in the horizontal angular direction, with the tip of the syringe facing upward, relative to the horizontal plane at an angle of 25 degrees, at an angle of 45 degrees relative to the horizontal plane with the tip of the syringe facing upward, the syringe was placed in the vertical direction at an angle of 90 degrees relative to the horizontal plane with the tip of the syringe facing upward, and in the vertical direction with the tip of the syringe facing downward and the syringe placed at an angle of 90 degrees relative to the horizontal plane, the delivery of breast milk was monitored with the syringe held in that position. Generally speaking, the syringe directed with the tip facing upward delivered a larger proportion of the fatty portion of breast milk at the beginning of the delivery cycle. Conversely, the syringe directed with the tip facing downward delivered the lowest proportion of the fatty portion of breast milk at the initial stage of the delivery cycle.

[0063] Each breastfeeding cycle for each syringe orientation lasted 60 minutes. Of the five syringe orientations, the vertical orientation with the tip of the syringe facing upward was the most effective for delivering the fat content of breast milk during the initial stage of the breastfeeding cycle. Referring to FIG. 21, within the first 20 minutes of the breastfeeding cycle, an amount exceeding 40% of the total fat content in breast milk was delivered. In one embodiment, an amount exceeding 44 % of the total fat content was delivered within the first 20 minutes. Also, within a portion of that time, each amount of breast milk delivered contained more than 10% fat (FIG. 20). In one embodiment, for at least 5 minutes within the first 20 minutes of delivery, each amount of breast milk delivered contained more than 10% fat. None of the other orientations were able to reproduce these fat delivery capabilities within the first 20 minutes of the delivery cycle.

[0064] Referring to FIG. 21, within the first 30 minutes of the feeding cycle, 60% of the total fat content in breast milk was delivered in an amount exceeding it. In one embodiment, an amount exceeding 63% of the total fat content was delivered within the first 30 minutes . Also, within a portion of that time, each amount of breast milk delivered contained more than 10% fat (FIG. 20). In one embodiment, for at least 10 minutes within the first 30 minutes of delivery, each amount of breast milk delivered contained more than 10% fat. In no other orientation could these fat delivery capabilities be reproduced within the first 30 minutes of the delivery cycle.

[0065] Referring to FIG. 21, within the first 40 minutes of the feeding cycle, 65% of the total fat content in breast milk was delivered in an amount exceeding it. In one embodiment, an amount exceeding 70% of the total fat content was delivered within the first 40 minutes . In one embodiment, an amount exceeding 71% of the total fat content was delivered within the first 40 minutes . Within the first 50 minutes of the feeding cycle, an amount exceeding 80% of the total fat content in breast milk was delivered. In one embodiment, an amount exceeding 84% of the total fat content was delivered within the first 50 minutes . Finally, by the end of the feeding cycle, an amount exceeding 90% of the total fat content was delivered . In one embodiment, an amount exceeding 94% of the total fat content was delivered by the end of the feeding cycle .

[0066] The syringe 14 is loaded into the holder 62 of the pump support 16 and attached to the tube 77 . In this state, the pump 1 is configured to deliver the supply liquid in the syringe to the target. By the operation of the pump 1 , the roller 43 engages the tube 45 in the cassette shell 9, and the supply liquid is fed from the syringe 1 4 to the target. Due to the engagement of the roller 43 with the tube 45, the - The roller 43 closes the tube 45. When the pump support 16 is configured such that the syringe is oriented in the vertical direction with the tip 24 facing upward, gravity does not assist in drawing the supply fluid from the syringe. Also, there is no direct actuation of the plunger 20 to push the fluid upward from the barrel 18. Thus, when the rotor 37 rotates and the roller 34 closes the tube 45, air rather than liquid is first drawn out from the inlet tube 77 of the syringe 14 and the barrel 18, and the vacuum pressure within the syringe increases. After a sufficient number of rotor rotations, a vacuum is created within the inlet tube 77 and the syringe 14. Due to the continuous rotation of the rotor 37, the supply fluid fed by the pump 1 to the outlet tube 83 of the subject is drawn into the inlet tube 77 through the inlet port 69 of the cassette 9 and the tube 45 from the barrel 18. However, the rotation of the rotor 37 does not produce a continuous and uniform flow of the supply fluid through the supply set 7, as in the case of a conventional pump device where the outlet of the syringe is oriented such that gravity assists in discharging the supply fluid downward from the syringe. Instead, the fluid is drawn out of the syringe 14 in irregular amounts and at discontinuous time intervals or increments. For example, during the first period of rotor rotation, no fluid is drawn out from the syringe 14. During this period, the plunger 20 remains stationary relative to the barrel 18. Eventually, the rotation of the rotor 37 that creates a vacuum in the fluid line draws out the first amount of fluid from the syringe 14 that is fed to the subject. The plunger 20 advances while swaying further into the barrel 18 when the first increment is supplied, but then stops again when the vacuum pressure decreases. The operation of the pump motor that drives the rotation of the rotor is such that there is sufficient movement of the plunger 20 (e.g., but not limited to this) When the pump support 16 is configured so that the syringe is oriented in the vertical direction with the tip 24 facing upward, gravity does not assist in drawing the supply fluid from the syringe. Also, there is no direct actuation of the plunger 20 to push the fluid upward from the barrel 18. Therefore, when the rotor 37 rotates and the roller 34 closes the tube 45, air rather than liquid is first drawn out from the inlet tube 77 of the syringe 14 and the barrel 18, and the vacuum pressure within the syringe increases. After a sufficient number of rotor rotations, a vacuum is created within the inlet tube 77 and the syringe 14. Due to the continuous rotation of the rotor 37, the supply fluid fed by the pump 1 to the outlet tube 83 of the subject is drawn into the inlet tube 77 through the inlet port 69 of the cassette 9 and the tube 45 from the barrel 18. However, the rotation of the rotor 37 does not produce a continuous and uniform flow of the supply fluid through the supply set 7, as in the case of a conventional pump device where the outlet of the syringe is oriented such that gravity assists in discharging the supply fluid downward from the syringe. Instead, the fluid is drawn out of the syringe 14 in irregular amounts and at discontinuous time intervals or increments. For example, during the first period of rotor rotation, no fluid is drawn out from the syringe 14. During this period, the plunger 20 remains stationary relative to the barrel 18. Eventually, the rotation of the rotor 37 that creates a vacuum in the fluid line draws out the first amount of fluid from the syringe 14 that is fed to the subject. The plunger 20 advances while swaying further into the barrel 18 when the first increment is supplied, but then stops again when the vacuum pressure decreases. The operation of the pump motor that drives the rotation of the rotor is such that there is sufficient movement of the plunger 20 (e.g., but not limited to this) When the first increment is supplied, the plunger 20 advances while swaying further into the barrel 18, but then stops again when the vacuum pressure decreases. The operation of the pump motor that drives the rotation of the rotor is such that there is sufficient movement of the plunger 20 (e.g., but not limited to this) When the first increment is supplied, the plunger 20 advances while swaying further into the barrel 18, but then stops again when the vacuum pressure decreases. The operation of the pump motor that drives the rotation of the rotor is such that there is sufficient movement of the plunger 20 (e.g., but not limited to this) When the first increment is supplied, the plunger 20 advances while swaying further into the barrel 18, but then stops again when the vacuum pressure decreases. The operation of the pump motor that drives the rotation of the rotor is such that there is sufficient movement of the plunger 20 (e.g., but not limited to this) However, after movement associated with delivering at least about 0.1 ml of liquid, it can be temporarily stopped. When movement is detected, there is a delay time before the stop position of the plunger is read and the operation can be stopped. Temporarily stopping the rotation of the rotor 37 serves to stop the rise of the vacuum pressure in the supply line and prevent the formation of air bubbles. As will be more fully explained below, after the rotation of the rotor has been stopped for a certain period, the rotation is resumed . However, continuous rotation of the rotor 37 does not result in a constant flow rate of fluid from the syringe 14. Rather, a second period elapses during which fluid is not withdrawn from the syringe 14 while the rotor 37 is rotating. Finally, this further rotation of the rotor 37 causes the plunger 20 to advance again while rocking forward within the barrel 18, and a second incremental amount of fluid is withdrawn from the syringe 14. This process continues throughout the feeding cycle. The amount of fluid withdrawn from the syringe 14 within each segment can vary in a similar manner to the period during which the fluid is being withdrawn. Thus, in order to deliver a predetermined amount of nutrient solution to the subject, a calculation of the supply time is performed taking into account the non-linear fluid delivery generated by the pump 1. The pump 1 can be programmed or otherwise controlled to operate in a desired manner. For example, the pump 1 can initiate an operation to supply a supply fluid from the syringe 14 to the subject. A user, such as a caregiver, can select, for example, the amount of fluid to be delivered, the flow rate of the fluid, and the frequency of fluid delivery. The pump 1 can have a controller 72 (FIG. 19) including a processor, such as the microprocessor 89, and the processor can control the pump operation. The amount of fluid withdrawn from the syringe 14 within each segment can vary in a similar manner to the period during which the fluid is being withdrawn. Thus, in order to deliver a predetermined amount of nutrient solution to the subject, a calculation of the supply time is performed taking into account the non-linear fluid delivery generated by the pump 1. Therefore, in order to deliver a predetermined amount of nutrient solution to the subject, a calculation of the supply time is performed taking into account the non-linear fluid delivery generated by the pump 1. The pump 1 can be programmed or otherwise controlled to operate in a desired manner. For example, the pump 1 can initiate an operation to supply a supply fluid from the syringe 14 to the subject. A user, such as a caregiver, can select, for example, the amount of fluid to be delivered, the flow rate of the fluid, and the frequency of fluid delivery. The pump 1 can have a controller 72 (FIG. 19) including a processor, such as the microprocessor 89, and the processor can control the pump

[0067] operation. For example, the pump 1 can start an operation to supply a supply fluid from the syringe 14 to the subject. A user, such as a caregiver, can select, for example, the amount of fluid to be delivered, the flow rate of the fluid, and the frequency of fluid delivery. The pump 1 can have a controller 72 (FIG. 19) including a processor, such as the microprocessor 89, and the processor can control the pump operation. The pump 1 can be programmed or otherwise controlled to operate in a desired manner. For example, the pump 1 can initiate an operation to supply a supply fluid from the syringe 14 to the subject. A user, such as a caregiver, can select, for example, the amount of fluid to be delivered, the flow rate of the fluid, and the frequency of fluid delivery. The pump 1 can have a controller 72 (FIG. 19) including a processor, such as the microprocessor 89, and the processor can control the pump operation. The pump 1 is capable of receiving programming and / or including a pre-programmed operating routine, such as an algorithm, that can be initiated by a user. The controller roller 72 can also be connected to the pump motor 27 to control its operation to activate the rotor 37. The amount of supply fluid delivered to the subject is typically controlled by the number of revolutions of the rotor 37 (in the counterclockwise direction as seen in FIG. 3). In the illustrated embodiment, the rotor 37 includes three rollers 43 such that one aliquot of fluid is supplied to the subject for each 1 / 3 of a revolution. When each roller 43 first engages the tube 45, the roller 43 pinches the tube, thereby isolating a quantity of fluid from the fluid coming from the supply source and forward (i.e., towards the subject). The roller 43 continues to rotate counterclockwise, thereby pushing the pinched amount of fluid in front of the roller, e.g., the aliquot, towards the subject. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. can be connected to the pump motor 27 to control its operation to activate the rotor 37.

[0068] The amount of supply fluid delivered to the subject is typically controlled by the number of revolutions of the rotor 37 (in the counterclockwise direction as seen in FIG. 3). In the illustrated embodiment, the rotor 37 includes three rollers 43 such that one aliquot of fluid is supplied to the subject for each 1 / 3 of a revolution. When each roller 43 first engages the tube 45, the roller 43 pinches the tube, thereby isolating a quantity of fluid from the fluid coming from the supply source and forward (i.e., towards the subject). The roller 43 continues to rotate counterclockwise, thereby pushing the pinched amount of fluid in front of the roller, e.g., the aliquot, towards the subject. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. In the illustrated embodiment, the rotor 37 includes three rollers 43 such that one aliquot of fluid is supplied to the subject for each 1 / 3 of a revolution. When each roller 43 first engages the tube 45, the roller 43 pinches the tube, thereby isolating a quantity of fluid from the fluid coming from the supply source and forward (i.e., towards the subject). The roller 43 continues to rotate counterclockwise, thereby pushing the pinched amount of fluid in front of the roller, e.g., the aliquot, towards the subject. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. In the illustrated embodiment, the rotor 37 includes three rollers 43 such that one aliquot of fluid is supplied to the subject for each 1 / 3 of a revolution. When each roller 43 first engages the tube 45, the roller 43 pinches the tube, thereby isolating a quantity of fluid from the fluid coming from the supply source and forward (i.e., towards the subject). The roller 43 continues to rotate counterclockwise, thereby pushing the pinched amount of fluid in front of the roller, e.g., the aliquot, towards the subject. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. When each roller 43 first engages the tube 45, the roller 43 pinches the tube, thereby isolating a quantity of fluid from the fluid coming from the supply source and forward (i.e., towards the subject). The roller 43 continues to rotate counterclockwise, thereby pushing the pinched amount of fluid in front of the roller, e.g., the aliquot, towards the subject. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. The roller 43 continues to rotate counterclockwise, thereby pushing the pinched amount of fluid in front of the roller, e.g., the aliquot, towards the subject. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. Finally, as the subsequent roller engages the tube to pinch it to deliver the next aliquot of fluid, the preceding roller 43 disengages from the tube 45 almost simultaneously. Thus, when the microprocessor 89 receives a command to deliver a selected fluid flow rate, it typically calculates the number of revolutions within a predetermined period to deliver a plurality of aliquots that generate the desired flow rate. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1. The selected flow rate can be a rate input or selected by a physician, nurse, or other caregiver or a default supply rate pre-programmed into the pump 1.

[0069] However, as described above, with the rotor 37 operating and the tip 24 facing upward, the injection When the syringe 14 is oriented vertically, the pump 1 does not produce a constant flow rate of fluid. Rather, the nutrient solution is in a plurality of portions or increments where the amount and time are almost always non-uniform withdrawn from the syringe 14. Accordingly, the controller 72 includes a timer 91 and a supply time corrector 85 in a memory area 93 that adjusts the supply time when the portion of fluid withdrawn from the syringe after a certain time has elapsed during the supply cycle deviates from the programmed flow rate. In the illustrated embodiment, the supply time corrector 85 can include a supply time correction instruction 95 and a supply time correction function 97. The supply time correction instruction 95 is machine-readable instructions on any suitable medium widely recognized as the memory area 93. These instructions can be executed by the microprocessor 89. The timer 91 can be started in a suitable manner when the supply cycle (broadly, an "operation cycle") for delivering the supply fluid from the syringe 14 to the subject is started or executed. The supply time corrector 85 uses this information along with additional parameters of the supply cycle to correct for the potentially non-uniform amount of supply fluid supplied during the supply cycle. The supply time corrector 85 can operate to adjust the duration for delivering the supply fluid through the supply set 7 to take into account the deviation in the amount of supply fluid withdrawn for the syringe 14 and delivered to the subject while the pump 1 is operating in the supply phase. This adjustment factor can be determined by the selected or pre-programmed flow rate for the supply fluid, the amount of supply fluid delivered to the subject, and the time the pump 1 was operating during the supply cycle. More specifically, the controller 72 uses the following function to determine the adjusted or corrected supply time

[0070] The supply time corrector 85 can operate to adjust the duration for delivering the supply fluid through the supply set 7 to take into account the deviation in the amount of supply fluid withdrawn for the syringe 14 and delivered to the subject while the pump 1 is operating in the supply phase. This adjustment factor can be determined by the selected or pre-programmed flow rate for the supply fluid, the amount of supply fluid delivered to the subject, and the time the pump 1 was operating during the supply cycle. More specifically, the controller 72 uses the following function to determine the adjusted or corrected supply time for the supply fluid, the amount of supply fluid delivered to the subject, and the time the pump 1 was operating during the supply cycle. More specifically, the controller 72 can use the following function to adjust or correct the supply time​ The interval can be determined. X = (Y + Yl) / (Z + Zn) X is the selected flow rate of the supply fluid during the supply cycle. Y is the amount of supply fluid drawn from syringe 14 and considered in all previous correction calculations in the supply cycle. Yl is the amount of supply fluid drawn from syringe 14 since the previous correction calculation. Z is the total time elapsed from the start of the supply cycle to the start of the supply correction operation. Zn is the adjusted or corrected supply cycle time added to the total supply cycle time. The function is because when one or more of the variables are input into pump 1 by the caregiver (or are included in a pre-programmed supply setting), the microprocessor 79 can calculate the supply time adjustment Zn according to the formula Zn = (Y + Y1 - XZ) / X and store it in the controller 72 so that the supply time adjustment Zn can be calculated. The supply time corrector 85 provides computer-executable instructions 86 used when calculating Zn = (Y + Y1 - XZ) / X. In one embodiment, the calculation of the supply time is performed after each portion or increment of fluid is drawn from syringe 14 while the rotation of the roller 37 is stopped. Then, the supply correction function 97 temporarily stops the operation of pump 1 for a time Zn to bring the actual fluid flow rate close to the selected fluid flow rate. In practice, there may be some very small movements of the plunger 20 relative to the barrel 18 before a significant amount of fluid is delivered

[0071] with a larger movement. In one embodiment, these smaller movements are ignored. In other words, the supply time corrector 85 can be configured not to start the supply time correction calculation until a threshold amount of supply fluid is drawn from syringe 14. For example ​​Then, the supply time correction calculation cannot be performed until movement associated with at least about 0.05 ml of fluid is detected. The threshold for the start of the supply time correction calculation can be other than those described, for example, but not limited to these, the threshold can be 1 ml, 2 ml or more within the scope of the present invention. Furthermore, by using a "moving while shaking" fluid delivery approach, a system is created that forms only the minimum amount of vacuum necessary to move the syringe. By using the minimum possible vacuum, the formation of air bubbles in the liquid is significantly reduced and in some cases eliminated. Suspending air bubbles in the liquid causes an error in the overall measurement accuracy, which is undesirable. In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used. In an embodiment where a camera is used to detect the position of the plunger 20 of the syringe 14 relative to the stand 16 and the barrel 18, the camera can select any reference point on the plunger and determine the length of movement by monitoring the changing position of the selected reference point. As described earlier herein, the camera calibrates the linear movement with the amount of fluid delivered.

[0072] Furthermore, by using a "moving while shaking" fluid delivery approach, a system is created that forms only the minimum amount of vacuum necessary to move the syringe. By using the minimum possible vacuum, the formation of air bubbles in the liquid is significantly reduced and in some cases eliminated. Suspending air bubbles in the liquid causes an error in the overall measurement accuracy, which is undesirable. Furthermore, by using a "moving while shaking" fluid delivery approach, a system is created that forms only the minimum amount of vacuum necessary to move the syringe. By using the minimum possible vacuum, the formation of air bubbles in the liquid is significantly reduced and in some cases eliminated. Suspending air bubbles in the liquid causes an error in the overall measurement accuracy, which is undesirable. Furthermore, by using a "moving while shaking" fluid delivery approach, a system is created that forms only the minimum amount of vacuum necessary to move the syringe. By using the minimum possible vacuum, the formation of air bubbles in the liquid is significantly reduced and in some cases eliminated. Suspending air bubbles in the liquid causes an error in the overall measurement accuracy, which is undesirable. Furthermore, by using a "moving while shaking" fluid delivery approach, a system is created that forms only the minimum amount of vacuum necessary to move the syringe. By using the minimum possible vacuum, the formation of air bubbles in the liquid is significantly reduced and in some cases eliminated. Suspending air bubbles in the liquid causes an error in the overall measurement accuracy, which is undesirable.

[0073] In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used. In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used. In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used. In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used. In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used. In addition or alternatively, the supply time corrector 85 can compare the value of Y + Y1 (the amount of supply fluid previously withdrawn from the syringe 14 plus the latest increment) with the desired total amount of supply fluid to be delivered to the subject. If Y is within a predetermined range of the desired total amount, the supply cycle is stopped. For example, if Y is within 0.1 ml of the desired total amount, the feeding cycle is stopped. Without departing from the scope of the present disclosure, other ranges (e.g., 0.05 ml, 0.15 ml, 0.2 ml, 0.25 ml, 0.3 ml, etc.) can be used.

[0074] In an embodiment where a camera is used to detect the position of the plunger 20 of the syringe 14 relative to the stand 16 and the barrel 18, the camera can select any reference point on the plunger and determine the length of movement by monitoring the changing position of the selected reference point. As described earlier herein, the camera calibrates the linear movement with the amount of fluid delivered. In an embodiment where a camera is used to detect the position of the plunger 20 of the syringe 14 relative to the stand 16 and the barrel 18, the camera can select any reference point on the plunger and determine the length of movement by monitoring the changing position of the selected reference point. As described earlier herein, the camera calibrates the linear movement with the amount of fluid delivered. In an embodiment where a camera is used to detect the position of the plunger 20 of the syringe 14 relative to the stand 16 and the barrel 18, the camera can select any reference point on the plunger and determine the length of movement by monitoring the changing position of the selected reference point. As described earlier herein, the camera calibrates the linear movement with the amount of fluid delivered. In an embodiment where a camera is used to detect the position of the plunger 20 of the syringe 14 relative to the stand 16 and the barrel 18, the camera can select any reference point on the plunger and determine the length of movement by monitoring the changing position of the selected reference point. As described earlier herein, the camera calibrates the linear movement with the amount of fluid delivered. It can also be used to detect the type of syringe (e.g., brand or size) so that the appropriate cross-sectional area (or diameter) of the internal volume can be known. However, if the inner diameter of a specific syringe barrel is unknown, the calibration of the controller 72 can be performed by comparing the linear movement of the plunger 20 with respect to the barrel 18 and the stand 16 with the actual amount of fluid supplied. For example, in the calibration mode of the pump 1, a syringe 14 filled with liquid can be installed on the stand 16 and connected to the pump. The pump 1 can be started to deliver liquid from the syringe 14. The user is asked to enter the amount, and the controller 72 records the position of the plunger 20 in the barrel 18 for the measured amount. This operation is repeated according to the instructions displayed on the pump's display to generate several data points of the plunger position and the supplied amount. These points can be used in a linear fitting calculation to calibrate the controller 72 to operate with a specific syringe 14. The information can be stored in the controller 72 so that it can be used whenever a calibrated specific type of syringe 14 is used. Alternatively, the controller 72 of the pump 1 can be programmed to instruct the user to perform a series of syringe operations to advance the plunger 20 into the barrel 18, and the microprocessor 89 can record the movement of the syringe and calibrate the movement with the amount of liquid supplied. For example, the controller 72 moves the plunger 20 in the barrel 18 of the syringe 14 to the 0 ml mark and then confirms that the operation has been performed.

[0075] the user to perform a series of syringe operations to advance the plunger 20 into the barrel 18, and the microprocessor 89 can record the movement of the syringe and calibrate the movement with the amount of liquid supplied. For example, the controller 72 moves the plunger 20 in the barrel 18 of the syringe 14 to the 0 ml mark and then confirms that the operation has been performed. For example, the controller 72 moves the plunger 20 in the barrel 18 of the syringe 14 to the 0 ml mark and then confirms that the operation has been performed. ​It can be instructed to the user. Then, the microprocessor 89 records the measured value. This process can be repeated again at the center of the syringe, where an instruction can be given to move the syringe to another volume marker (e.g., 30 ml). Then, the micro processor 89 records the distance the syringe (i.e., barrel 18) has moved. Finally an instruction can be provided to move the plunger 20 in the syringe 14 to another volume mark such as the end of the barrel 18 or near it. The microprocessor 89 records the distance the syringe has moved again. Using these three data points, a linear curve calibration for the syringe can be created.

[0076] Thus, it can be seen that various objectives and features are achieved by the various embodiments disclosed herein. The pump controller 72 has a supply time corrector 85, and the supply time corrector 85 adjusts the length of time the microprocessor 89 operates the rotor 37 to deliver the supply fluid through the supply set ting 7 to take into account the deviation in the amount drawn out for the syringe 14 and delivered to the subject while the pump 1 is operating in the supply stage. Thus, the subject can receive a more accurate amount of supply fluid for a given supply cycle.

[0077] Referring to FIGS. 22 - 25, a pump support of another embodiment is shown generally at 116. The pump support 116 is configured to receive the pump 1 and support the pump on a horizontal support surface S such as a desktop. The holder 116 includes a base 122 that defines a pocket 124 for receiving the pump 1 therein. The base 122 has a rear wall 126 and a rear wall ​​​​​​​​​​​ a bottom wall 128 that protrudes forward, and a pair of side walls 130 that protrude upward from the bottom wall and forward from the rear wall on both sides of the rear wall and includes. A mount 132 can be disposed on the rear wall 126. In the illustrated embodiment form, the mount 132 has a rounded triangular or arch shape and generally has mounting flanges 134 that branch out from both sides of the mount from the top of the base toward the bottom wall 128. The mounting flanges 134 of the mount 132 are formed in a groove 13 6 (FIG. 4A) formed on the back surface of the pump 1 and slide and engage to configure the pump to be attached to the support 116 can be. The post 138 can be disposed on the rear wall 126 within the periphery of the mount 132 and has a receptacle for a retainer (not shown) for locking the pump 1 to the base 122 septum. The legs 142 are rotatably attached to respective mounting arms 144 disposed at the bottom of the base 122. Each mounting arm 144 extends generally between the bottom wall 128 and the respective side wall 130 from opposite sides of the base 122 respectively. Each mounting arm 1

[0078] 44 includes an extension portion 146 and a swivel portion 148 at the end of the extension portion. The legs 142 swivel about the swivel portion 148 of the mounting arm 144. Each leg 142 includes a flat upper surface 150, a flat bottom surface 152, and an end surface 154 connecting the upper surface and the bottom surface. The legs 142 swivel upward until they engage the corresponding side wall 130 and swivel downward until they engage the extension portion 146 of the mounting arm 144 to which they are attached rotate. In one embodiment, each leg 142 is configured to rotate over a range of approximately 180 degrees However, other swivel ranges are also contemplated. rotate. In one embodiment, each leg 142 is configured to rotate over a range of approximately 180 degrees rotate. However, other swivel ranges are also contemplated. rotate. In one embodiment, each leg 142 is configured to rotate over a range of approximately 180 degrees However, other swivel ranges are also contemplated.

[0079] When the support 116 is supported on the horizontal support surface S, each leg 142 is independently rotatable and is configured to rotate about an axis defined by the swivel portion 148. Accordingly the legs 142 are configured to rotate towards the support surface for engagement with the support surface and to rotate away from the support surface to release at least a portion of the legs from the support surface. For example, by rotating one of the legs 142, the bottom surface 1 52 and / or the end face 154 of the leg can be engaged with the support surface S (as shown in FIG. 25 for example), and one side of the support 116 (and the pump 1 thereon) can be lifted or tilted above the other side to change the angular orientation of the pump In the case of the pump 1 with the syringe attached horizontally, this allows the tip of the syringe to tilt upward or downward depending on the direction in which it is facing and the leg rotated to engage with the support surface. When the tip of the syringe is tilted upward, this provides a similar function to the pump support 16 with the syringe oriented obliquely with respect to the horizontal and vertical axes. As described above, this orientation is advantageous when breast milk is being delivered from the syringe The legs 142 are configured to tilt the support 116 at an angle between about 1 degree and about 40 degrees with respect to the horizontal axis when the holder is located on the horizontal support surface. The legs 142 can also be operated to orient the syringe attached to the pump 1 in other directions without departing from the scope shown herein. The pump support 116 is also configured to be attached to a clamping device (not shown) for attaching the pump support to a support such as an IV pole The embodiment is a program executed by one or more computers or other devices The embodiment is a program executed by one or more computers or other devices The embodiment is a program executed by one or more computers or other devices The embodiment is a program executed by one or more computers or other devices

[0080] The embodiment is a program executed by one or more computers or other devices It can be described in the general context of computer-executable instructions such as modules. Computer-executable instructions include routines, programs, objects, components, and data structures that perform a particular task or implement a particular abstract data type but are not limited to these, and can be organized into one or more computer-executable components or modules. Aspects can be implemented in any number and organization of such components or modules. For example, various features or aspects are shown in specific computer-executable instructions or figures and are not limited to the specific components or modules described herein. Other embodiments can include different computer-executable instructions or components with more or fewer functions than those shown and described herein.

[0081] Also, the order of performing or executing operations in any of the embodiments shown and described herein is not critical unless otherwise specified. That is, unless specifically stated otherwise, operations can be performed in any order, and embodiments can include additional operations or fewer operations compared to those disclosed herein. For example, performing or executing a particular operation before, concurrently with, or after another operation is considered within the scope of one or more aspects.

[0082] In an operation, the microprocessor 89 of the controller 72 executes computer-executable instructions as shown in the figures to implement one or more aspects disclosed herein. Any of the various aspects can be implemented with remote processing linked via a communication network. It can be implemented in a distributed computing environment where tasks are executed by devices. In a distributed computing environment, program modules can be located on both local and remote computer storage media including a memory storage device.

[0083] When introducing elements of the present invention or preferred embodiments thereof, the articles "a", "an", "the" and "said" are intended to mean that there are one or more elements. The terms "comprising", "including" and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.

[0084] Based on the above, it will be understood that some objects of the present invention are achieved and other advantageous results are achieved.

[0085] Without departing from the scope of the present invention, various changes can be made to the above structure, and all matters included in the above description and shown in the accompanying drawings are not intended in a limiting sense but are intended to be construed as illustrative.

[0086] Other aspects of the disclosure

[0087] A1. A pump set for use with a flow control device having a pump system including a rotor for rotating about a pump shaft and at least one roller attached to the rotor for engaging the pump set,

[0088] a tube configured such that the pump system of the flow control device engages to pump fluid through the tube,

[0089] A syringe assembly connected to a tube, comprising a syringe and a stand configured to support the syringe generally vertically The syringe supported by the stand has an outlet of the syringe that is in fluid communication with the tube when the syringe is supported by the stand generally upward oriented, syringe assembly and a pump set comprising .

[0090] A2. The stand is configured to hold the plunger in a fixed position relative to the stand The pump set according to A1.

[0091] A3. The stand comprises a base and a guide wall protruding upward from the base, the base is formed to capture the end of the plunger, the pump set according to A2.

[0092] A4. The stand further comprises a gripper attached to move along the guide wall The gripper is configured to hold the barrel of the syringe around the base of the stand The pump set according to A3.

[0093] A5. The base is configured to rest on a support surface, the guide wall extends upward from the support surface, and the syringe extends upward from the base, the pump set according to A2 or A3.

[0094] B1. A syringe assembly for use with a flow control device, the syringe assembly comprising

[0095] a syringe for holding a certain amount of supply fluid, comprising a barrel for holding a certain amount of supply fluid and a plunger movable within the barrel for drawing fluid into the barrel and pushing fluid out of the barrel and a syringe

[0096] A stand comprising a support configured to support a syringe in a supply position, and

[0097] a position sensor attached to the stand and configured to detect movement of the barrel of the syringe relative to the stand, indicating that supply fluid is being delivered from the barrel to the syringe. A syringe assembly comprising the above.

[0098] B2. The syringe assembly according to B1, wherein the position sensor includes one of a potentiometer, a camera, a magnetic foil sensor, and a non-magnetic inductive sensor.

[0099] B3. The syringe assembly according to B1 or B2, wherein the stand includes a gripper configured to connect to the barrel of the syringe, and the gripper is movable relative to the stand.

[0100] B4. The syringe assembly according to B3, wherein the gripper is connected to the position sensor.

[0101] B5. The syringe assembly according to B1, wherein the position sensor includes a camera, and the syringe assembly further includes a controller configured to detect the type of syringe attached to the stand.

[0102] C1. A flow control device for use in conjunction with a pump set for delivering fluid from a source through the pump set to a subject, comprising:

[0103] a pump device capable of acting on the pump set to generate a flow of fluid within the pump set during a supply cycle, and

[0104] a control for the operation of the pump device in a supply arrangement for generating a flow of fluid within the pump set A controller that communicates with a pump device for control, the controller including a processor and a memory, the controller being adapted to store in the memory a selected flow rate and a desired fluid volume of the fluid, the controller being configured to take into account a detected deviation of the actual flow rate from the selected flow rate from a supply source, and to deliver fluid through a pump set during a supply cycle A supply time corrector that adjusts the supply time for operating a pump device is executed in a processor To take into account the detected deviation of the actual flow rate from the selected flow rate, the controller is configured to A flow control device comprising a controller configured to be executed within the processor to adjust the supply time for operating a pump device that delivers fluid through a pump set during a supply cycle And a flow control device as described in C1, wherein the controller temporarily stops the operation of the pump device to correct a detected deviation of the actual flow rate from the selected flow rate. The flow control device according to any one of C1 to C3, wherein the controller compares the total amount of fluid actually delivered with the desired amount of fluid and ends the supply cycle if the difference is within a predetermined threshold.

[0105] C2. The flow control device according to C1, wherein the controller temporarily stops the operation of the pump device to correct a detected deviation of the actual flow rate from the selected flow rate. The flow control device according to C1, wherein the controller temporarily stops the operation of the pump device to correct a detected deviation of the actual flow rate from the selected flow rate.

[0106] C3. The flow control device according to C1 or C2, wherein the controller compares the total amount of fluid actually delivered with the desired amount of fluid and ends the supply cycle if the difference is within a predetermined threshold. The flow control device according to C1 or C2, wherein the controller compares the total amount of fluid actually delivered with the desired amount of fluid and ends the supply cycle if the difference is within a predetermined threshold. The flow control device according to C1 or C2, wherein the controller compares the total amount of fluid actually delivered with the desired amount of fluid and ends the supply cycle if the difference is within a predetermined threshold.

[0107] C4. The supply time corrector calculates a supply time corrected based on the formula X=(Y+Yl) / (Z+Zn), where X is the selected flow rate for the fluid, Y is the amount of fluid already supplied from the supply source during the supply cycle, Yl is the amount of supply fluid supplied from the supply source since the previous correction calculation, Z is the total time elapsed during the supply cycle, and Zn is the adjustment of the supply time. The flow control device according to any one of C1 to C3, wherein the supply time corrector calculates a supply time corrected based on the formula X=(Y+Yl) / (Z+Zn), where X is the selected flow rate for the fluid, Y is the amount of fluid already supplied from the supply source during the supply cycle, Yl is the amount of supply fluid supplied from the supply source since the previous correction calculation, Z is the total time elapsed during the supply cycle, and Zn is the adjustment of the supply time. The flow control device according to any one of C1 to C3, wherein the supply time corrector calculates a supply time corrected based on the formula X=(Y+Yl) / (Z+Zn), where X is the selected flow rate for the fluid, Y is the amount of fluid already supplied from the supply source during the supply cycle, Yl is the amount of supply fluid supplied from the supply source since the previous correction calculation, Z is the total time elapsed during the supply cycle, and Zn is the adjustment of the supply time. The flow control device according to any one of C1 to C3, wherein the supply time corrector calculates a supply time corrected based on the formula X=(Y+Yl) / (Z+Zn), where X is the selected flow rate for the fluid, Y is the amount of fluid already supplied from the supply source during the supply cycle, Yl is the amount of supply fluid supplied from the supply source since the previous correction calculation, Z is the total time elapsed during the supply cycle, and Zn is the adjustment of the supply time. The flow control device according to any one of C1 to C3, wherein the supply time corrector calculates a supply time corrected based on the formula X=(Y+Yl) / (Z+Zn), where X is the selected flow rate for the fluid, Y is the amount of fluid already supplied from the supply source during the supply cycle, Yl is the amount of supply fluid supplied from the supply source since the previous correction calculation, Z is the total time elapsed during the supply cycle, and Zn is the adjustment of the supply time.

[0108] C5. The flow control device according to any one of C1 to C4, wherein the controller is programmed to execute the supply time corrector only after a threshold amount of fluid has been supplied from the supply source. The flow control device according to any one of C1 to C4, wherein the controller is programmed to execute the supply time corrector only after a threshold amount of fluid has been supplied from the supply source. .

[0109] D1. A method of delivering fluid from a syringe having a barrel and a plunger received therein using a pump device of a flow control device that acts on a pump set attached to the flow control device to generate a flow of fluid through the pump set, comprising: inputting into a controller of the pump device at least one of a selected flow rate and a total amount of fluid to be delivered from the syringe during an operating cycle; starting operation of the pump device using the controller to draw fluid from the syringe;

[0110] detecting relative movement between the plunger and the syringe and transmitting a signal representative of the detected relative movement to the controller; calculating, using computer-executable instructions within the controller, a corrected supply time for operating the pump device to deliver fluid through the pump set during the operating cycle to correct for a deviation between the rate at which fluid is actually delivered from the syringe and the selected flow rate;

[0111] operating the flow control device to deliver fluid through the pump set for the corrected supply time. and

[0112] A method as described in D1, wherein the controller delays starting operation of the pump device by the calculated corrected supply time. and

[0113] A method as described in D1, wherein when relative movement between the plunger and the syringe is detected, the controller stops operation of the pump device. and starting operation of the pump device again after a predetermined period of time.

[0114] A method as described in D1, further comprising calculating a time period for which fluid is actually delivered from the syringe based on the detected relative movement between the plunger and the syringe. and using the calculated time period to correct for a deviation between the rate at which fluid is actually delivered from the syringe and the selected flow rate.

[0115] D2. The method according to D1, wherein the controller delays the start of operation of the pump device by the calculated corrected supply time. A method according to D1, wherein when relative movement between the plunger and the syringe is detected, the controller stops operation of the pump device.

[0116] D3. When relative movement between the plunger and the syringe is detected, the controller stops operation of the pump device. The method according to D1 or D2 for stopping the operation of

[0117] D4. When detecting a relative movement between the plunger and the syringe that exceeds a predetermined threshold movement, The method according to D3, wherein the controller stops the operation of the pump device.

[0118] D5. The correction supply time is calculated when the pump device is not operating to pump fluid through the pump set, the method according to any one of D1 to D4.

[0119] E1. A method for delivering breast milk to an infant,

[0120] collecting the breast milk stored in a syringe having a barrel and a plunger received in the barrel, and

[0121] mounting the syringe on a stand such that the longitudinal axis of the syringe is generally vertical and the outlet of the syringe is located at the top, and

[0122] delivering the breast milk from the syringe to the infant while the syringe is on the stand and

[0123] E2. Delivering the breast milk includes drawing the breast milk from the syringe by applying a vacuum pressure to the outlet of the syringe, the method according to E1.

[0124] E3. Delivering the breast milk includes moving the barrel of the syringe relative to the stand and the plunger, the method according to A1 or E2.

[0125] F1. A method for calibrating a flow control device used for delivering fluid from a syringe to a subject, comprising

[0126] Cause a command to be displayed on the display of the flow control device and start the calibration routine stored by the flow control device and

[0127] Save the initial position of the plunger of the syringe relative to the barrel of the syringe

[0128] Deliver a first quantity of fluid from the syringe

[0129] Facilitate the inflow of the first quantity of fluid delivered into the flow control device

[0130] Save the second position of the plunger

[0131] Operate the flow control device to deliver a second quantity of fluid

[0132] Facilitate the inflow of the second quantity of fluid delivered into the flow control device

[0133] Save the third position of the plunger

[0134] Within the flow control device, identify the relationship between the movement of the plunger relative to the barrel of the syringe and the quantity of fluid delivered and

[0135] Save the movement / quantity relationship in the memory of the flow control device

[0136] Store an identifier for the syringe such that the flow control device can recall the movement / quantity relationship for use with the syringe in subsequent fluid deliveries and A method including

[0137] G1. A method of calibrating a flow control device used to deliver fluid from a syringe to a subject wherein

[0138] Cause the display of the flow control device to display instructions to start the calibration routine stored by the flow control device, and

[0139] Cause the flow control device to store the initial position of the syringe plunger relative to the syringe barrel, and

[0140] Cause the display to show instructions to move the plunger to a second position at a first known volume marker relative to the barrel, and

[0141] Cause the flow control device to record the movement of the plunger relative to the barrel from the initial position to the second position, and

[0142] Cause the display to show instructions to move the plunger to a third position at a second known volume marker relative to the barrel, and

[0143] Cause the flow control device to record the movement of the plunger relative to the barrel from the second position to the third position, and

[0144] In the flow control device, determine the movement / volume relationship between the movement of the plunger relative to the syringe barrel and the amount of fluid delivered, and

[0145] Store the movement / volume relationship in the memory of the flow control device, comprising a method.

[0146] G2. Further comprising storing a syringe identifier for the syringe, whereby the flow control device can call the movement / volume relationship for use with the syringe in subsequent fluid deliveries, the method according to G1. G1. The method described above.

[0147] H1. Act on a pump set attached to the flow control device to cause flow through the pump set A method of delivering fluid from a barrel and a syringe having a plunger received therein, using a pump device of a flow control device that generates a body flow, comprising: inputting into a controller of the pump device at least one of a selected flow rate and a total amount of fluid to be delivered from the syringe during an operating cycle;

[0148] starting operation of the pump device using the controller to draw fluid from the syringe; and

[0149] detecting relative movement between the plunger and the syringe and transmitting a signal representative of the detected relative movement to the controller; and

[0150] stopping operation of the pump device to limit a vacuum pressure within the syringe; and

[0151] restarting the pump device.

[0152] A method comprising the steps of:

[0153] I1. A flow control device for use in conjunction with a pump set for delivering fluid from a source through the pump set to a subject, the flow control device comprising: a pump device operable to act on the pump set to generate a flow of fluid within the pump set during a supply cycle;

[0154] a controller in communication with the pump device for controlling operation of the pump device in a supply arrangement for generating a flow of fluid within the pump set, the controller including a processor and a memory, the controller configured to store in the memory a selected flow rate and a desired volume of fluid;

[0155] and a memory, the controller storing in the memory a selected flow rate and a desired volume of fluid; ​​​​Adapted to remember, the controller operates a pump device to limit the vacuum pressure delivered to the source A controller configured to operate a pump device to limit the vacuum pressure delivered to the source A flow control device comprising the same

[0156] J1. A flow control device used together with a pump set for delivering fluid from a source through the pump set to a target, comprising

[0157] A pump device capable of acting on the pump set to generate a fluid flow within the pump set during a supply cycle, and

[0158] A controller communicating with the pump device to control the operation of the pump device in a supply arrangement for generating a fluid flow within the pump set, the controller being configured to stop the operation of the pump device when a predetermined delivery of a supply solution from the source is detected, and A flow control device comprising the same

[0159] J2. The supply source is a syringe including a barrel and a plunger received within the barrel, and the controller stops the pump device when a predetermined movement of the plunger is detected, The flow control device according to J1.

[0160] K1. An enteral nutrition system for delivering fluid to a target,

[0161] A supply set assembly including a cassette and a tube attached to the cassette,

[0162] A syringe assembly including a syringe connected to the tube and a stand configured to support the syringe, the stand having a base for supporting the stand on a horizontal support surface ​​a stand, and a holder for fixing the syringe to the stand, the holder being attachable to the base and being selectively positionable relative to the base for orienting the syringe in at least two different positions a syringe assembly; and

[0163] a flow control device including a pump device operable to draw fluid from the syringe for generating a fluid flow in a delivery set An enteral nutrition system comprising: An enteral nutrition system.

[0164] L1. A supply set assembly for use with a flow control device, the supply set assembly comprising:

[0165] a cassette configured to be removably attached to the flow control device, the cassette including an inlet port; a tube connected to the inlet port;

[0166] a valve assembly connected to the tube, the valve assembly including a valve housing and a valve operable between a closed position preventing ambient air from entering the tube and an open position allowing ambient air to enter the tube and remove fluid within the tube from the tube

[0167] A supply set assembly comprising: a valve assembly connected to the tube, the valve assembly including a valve housing and a valve operable between a closed position preventing ambient air from entering the tube and an open position allowing ambient air to enter the tube and remove fluid within the tube from the tube a valve assembly connected to the tube, the valve assembly including a valve housing and a valve operable between a closed position preventing ambient air from entering the tube and an open position allowing ambient air to enter the tube and remove fluid within the tube from the tube A supply set assembly comprising: A supply set assembly.

[0168] M1. A method of delivering a fortifier from a syringe to a subject using the pump device of a flow control device, the method comprising: providing a syringe with an amount of fortifier including a total amount of preferred nutrients and an amount of non-preferred nutrient solution;

[0169] attaching the syringe to the flow control device; providing a syringe with an amount of fortifier including a total amount of preferred nutrients and an amount of non-preferred nutrient solution;

[0170] attaching the syringe to the flow control device;

[0171] Orient the syringe generally vertically so that the outlet of the syringe faces downward,

[0172] start the operation of the pump device to draw the reinforcing agent from the syringe,

[0173] deliver at least a portion of the amount of the reinforcing agent from the syringe to the subject so that the preferred nutrients in the reinforcing agent are preferentially delivered from the syringe, and A method comprising.

Claims

1. A syringe stand for supporting a syringe including a barrel having an outlet and a plunger received at an end of the barrel opposite the outlet, comprising: a base for supporting the syringe stand on a horizontal support surface; a holder for fixing the syringe to the syringe stand, the holder being attachable to the base and selectively positionable relative to the base for orienting the syringe in at least two different positions, the holder defining a receiving space configured to receive at least a portion of the barrel and plunger of the syringe; at least one rail provided on the holder and a slide movable along the rail, wherein movement of the plunger causes the slide to move along the rail to guide movement of the plunger within the receiving space; A syringe stand comprising the above.

2. The syringe stand according to claim 1, wherein the holder is positionable in a first position in which the longitudinal axis of the syringe is generally parallel to the vertical axis and the syringe is generally oriented vertically with the outlet of the syringe facing upward, and a second position in which the longitudinal axis of the syringe is generally parallel to the horizontal axis and the syringe is generally oriented horizontally.

3. The syringe stand according to claim 2, wherein the holder is positionable in a third position in which the longitudinal axis of the syringe is oriented obliquely with respect to the vertical axis and the horizontal axis.

4. The syringe stand according to claim 1, wherein the holder is configured to hold the barrel of the syringe in a fixed position relative to the stand.

5. The syringe stand according to claim 1, further comprising a position sensor attached to the holder and configured to detect movement of the plunger relative to the holder indicating that fluid is being dispensed from the barrel.

6. The syringe stand according to claim 5, wherein the position sensor is configured to detect movement of the plunger based on movement of the slide along the at least one rail.

7. The syringe stand according to claim 5, wherein the position sensor includes one of a potentiometer, a camera, a magnetic foil sensor, and a non-magnetic induction sensor.

8. The syringe stand according to claim 1, wherein the base is configured to attach a flow control device to the base.

9. The syringe stand according to claim 8, further comprising a through connector on the base, the through connector including a first port and a first plug communicating with the first port, the first plug being configured to connect to a second port of the flow control device, and the first port of the through connector on the base being configured to receive a second plug and connect the second plug to the second port of the flow control device through the through connector.

10. The syringe stand according to claim 1, wherein the base includes a mount for attaching the syringe stand to a clamp for attaching the syringe stand to a vertical support.

11. The syringe stand according to claim 1, wherein the at least one rail includes a first rail and a second rail.

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