Infusion system

Abstract

An infusion system includes a first resilient pump including a first reservoir and a first lumen; the second elastic pump comprises a second liquid storage device and a second pipe cavity; the third elastic pump comprises a third liquid storage device and a third pipe cavity; a switch in fluid communication with the first lumen, the second lumen, and the third lumen; and a patient connector. The switch is movable between a first position in which the first lumen is in fluid communication with the patient connector and the second and third lumens are isolated from the patient connector, a second position in which the second lumen is in fluid communication with the patient connector and a third position in which the second lumen is in fluid communication with the patient connector. The first lumen is in fluid communication with the patient connector and the first and third lumens are isolated from the patient connector, and the second lumen is in fluid communication with the patient connector and the third lumen is in fluid communication with the patient connector and the first and second lumens are isolated from the patient connector.

Description

Cross-references to related applications

[0001] This application claims priority to U.S. Provisional Application No. 63 / 581,733, entitled “Infusion System,” filed on September 11, 2023, the disclosure of which is incorporated herein by reference in its entirety.

[0002] Background Art of the Invention The technical field of this disclosure This disclosure generally relates to infusion systems.

[0003] Description of related technologies The reconfiguration, transportation, and administration of hazardous medications (e.g., cancer treatments) by healthcare providers can expose them to these agents and pose a hazard to the healthcare environment. Unintentional chemotherapy exposure can affect the nervous system, damage the reproductive system, and increase the risk of future blood cancers. Some medications require dissolution or dilution before administration, which involves transferring the solvent from a container to a sealed vial containing the medication in powder or liquid form using a needle. If any pressure difference exists between the inside of the vial and the surrounding atmosphere, the medication may be inadvertently released into the atmosphere as a gas or aerosol during needle withdrawal from the vial and while the needle is inside the vial. To reduce the risk of healthcare providers' exposure to toxic medications, the transfer of these medications is accomplished using a closed-system transfer device or system. Summary of the Invention

[0004] In one aspect or embodiment, an infusion system includes: a first resilient pump including a first reservoir and a first lumen; a second resilient pump including a second reservoir and a second lumen; a third resilient pump including a third reservoir and a third lumen; a switch in fluid communication with the first lumen, the second lumen, and the third lumen; and a patient connector configured to connect to a patient catheter or infusion line. The switch is movable between a first position, a second position, and a third position, in which the first lumen is in fluid communication with the patient connector and the second and third lumens are isolated from the patient connector; in a second position, the second lumen is in fluid communication with the patient connector and the first and third lumens are isolated from the patient connector; and in a third position, the third lumen is in fluid communication with the patient connector and the first and second lumens are isolated from the patient connector. Attached Figure Description

[0005] The above and other features and advantages of this disclosure, as well as the ways in which they are implemented, will become more apparent from the following description of various aspects of this disclosure, taken in conjunction with the accompanying drawings, and the disclosure itself will be better understood: Figure 1 This is a perspective view of an infusion system according to one aspect or embodiment of this application; Figure 2 yes Figure 1 A partial perspective view of the system shown; and Figure 3 This is a perspective view of an infusion system according to another aspect or embodiment of this application.

[0006] In all the views, corresponding reference numerals denote corresponding parts. The examples set forth herein illustrate exemplary aspects of this disclosure, and these examples should not be construed as limiting the scope of this disclosure in any way. Detailed Implementation

[0007] The following description is provided to enable those skilled in the art to make and use the aspects contemplated for carrying out the invention. However, various modifications, equivalents, variations, and substitutions will be apparent to those skilled in the art. Any and all such modifications, variations, equivalents, and substitutions are intended to fall within the spirit and scope of the invention.

[0008] In the following text, for descriptive purposes, the terms “upper,” “lower,” “right,” “left,” “vertical,” “horizontal,” “top,” “bottom,” “lateral,” “longitudinal,” and their derivatives shall be used in connection with the present invention as oriented as shown in the accompanying drawings. However, it should be understood that the invention may employ various alternative variations unless explicitly stated otherwise. It should also be understood that the specific devices shown in the accompanying drawings and described in the following specification are merely exemplary aspects of the invention. Therefore, specific dimensions and other physical characteristics relating to the aspects disclosed herein should not be considered limiting.

[0009] Unless otherwise stated, all ranges or ratios disclosed herein should be understood to encompass the starting and ending values, as well as any and all subranges or subratios contained therein. For example, the stated range or ratio “1 to 10” should be considered to include any and all subranges or subratios between the minimum value of 1 and the maximum value of 10 (inclusive); that is, all subranges or subratios begin with a minimum value of 1 or greater and end with a maximum value of 10 or less.

[0010] The terms “first” and “second” are not intended to refer to any particular order or sequence, but rather to different conditions, properties or elements.

[0011] As used herein, “at least one of…” is synonymous with “one or more of…”. For example, the phrase “at least one of A, B, and C” means any one of A, B, or C, or any combination of any two or more of A, B, or C. For example, “at least one of A, B, and C” includes: one or more A’s alone; or one or more B’s alone; or one or more C’s alone; or one or more A’s and one or more B’s; or one or more A’s and one or more C’s; or one or more B’s and one or more C’s; or one or more A’s, B’s, and C’s.

[0012] In one aspect or embodiment of this application, the infusion system 10 includes: a first elastic pump 12 having a first reservoir 14 and a first lumen 16; a second elastic pump 22 having a second reservoir 24 and a second lumen 26; a third elastic pump 32 having a third reservoir 34 and a third lumen 36; a switch 40 in fluid communication with the first lumen 16, the second lumen 26 and the third lumen 36; and a patient connector 42 configured to connect to a patient catheter or infusion line. The switch 40 is movable between a first position, a second position, and a third position. In the first position, the first lumen 16 is in fluid communication with the patient connector 42, and the second lumen 26 and the third lumen 36 are isolated from the patient connector 42. In the second position, the second lumen 26 is in fluid communication with the patient connector 42, and the first lumen 16 and the third lumen 36 are isolated from the patient connector 42. In the third position, the third lumen 36 is in fluid communication with the patient connector 42, and the first lumen 16 and the second lumen 26 are isolated from the patient connector 42. Although three elastic pumps 12, 22, and 32 are shown, two or more elastic pumps may be provided. The infusion system 10 may be a disposable, portable infusion system. In one aspect or embodiment, the infusion system 10 is configured to deliver chemotherapy drugs or therapeutic drugs.

[0013] In one aspect or embodiment, the first reservoir 14 contains chemotherapy drugs, the second reservoir 24 contains heparin, and the third reservoir 34 contains saline. System 10 is configured to provide saline flushing and heparin lock of the chemotherapy infusion set and ports without disconnecting the infusion lines, simplifying the infusion "removal" process and allowing patients to remove their own tubing without the presence of a clinician. Switch 40 is configured to be manually moved by a patient or clinician to control the flow rate of the three resilient pumps 12, 22, 32 for different infusion steps. Switch 40 may also include a fourth position in which the first lumen 16, the second lumen 26, and the third lumen 36 are isolated from the patient connector 42.

[0014] In one aspect or embodiment, an input valve 50 is located between a patient connector 42 and a switch 40, wherein the input valve 50 has a medical connector interface 52. The input valve 50 is movable between a first position, a second position, and a third position, in which the medical connector interface 52 is in fluid communication with the switch 40; in the second position, in which the medical connector interface 52 is in fluid communication with the patient connector 42; and in the third position, in which the medical connector interface 52 is isolated from the patient connector 42 and the switch 40. The input valve 50 may include an input connector, an output connector, and a manually movable valve actuator for moving the input valve 50 between the first, second, and third positions. In one aspect or embodiment, the medical connector interface 52 is a closed female Luer. In one aspect or embodiment, the medical connector interface 52 is a Texium™ closed male Luer available from Becton, Dickinson and Company. The inlet valve 50 can be used to fill the reservoirs 14, 24, and 34 of the three flexible pumps 12, 22, and 32.

[0015] In one aspect or embodiment, system 10 includes a manifold 60 located between input valve 50 and switch 40, wherein manifold 60 receives a first cavity 16, a second cavity 26 and a third cavity 36, and includes an output cavity 62 in fluid communication with input valve 50.

[0016] In one aspect or embodiment, the diameter of the first lumen 16 is smaller than the diameters of the second lumen 26 and the third lumen 36. The sizes of the lumens 16, 26, and 36 can be selected to provide optimized infusion rates for the three infusion solutions, for example, slower for chemotherapy drugs and faster for flushing and heparin. The volume of the first reservoir 14, which can be used for chemotherapy drugs, can be larger than the volume of the second reservoir 24 and the third reservoir 34, which can be used for saline and heparin.

[0017] In one aspect or embodiment, switch 40 is color-coded with corresponding colors for its three positions to provide color indication of the position of switch 40. Furthermore, the flexible pumps 12, 22, 32 (including at least a portion of lumens 16, 26, 36) may be surrounded by an outer layer or housing 70.

[0018] refer to Figure 3 , Figure 3 An infusion system according to another aspect or embodiment of this application is shown. Although Figure 3Not shown, but the aforementioned first lumen 16, second lumen 26, and third lumen 36 can be replaced by dual-channel co-extruded tubing (a small tube and a large tube). The dual-channel co-extruded tubing can be two tubes placed side-by-side and glued together along one edge. Saline and heparin flushing can share the same large lumen tube. The switch still connects to only one of the three reservoirs at a time, but two of the multiple switch positions are directed to the same downstream lumen. Although... Figure 3 Not shown, but two larger lines will converge to the left side of the dial switch.

[0019] While this disclosure has been described as having an exemplary design, it can be further modified within the spirit and scope of this disclosure. Therefore, this application is intended to cover any variations, uses, or adaptations of this disclosure using its general principles. Furthermore, this application is intended to cover such deviations from this disclosure within practices known or customary in the art to which this disclosure pertains, and such deviations fall within the limitations of the appended claims. To the extent possible, one or more features of any aspect or embodiment described above may be combined with one or more features of any other aspect or embodiment.

Claims

1. An infusion system, comprising: A first flexible pump, the first flexible pump comprising a first reservoir and a first tubing; The second flexible pump includes a second reservoir and a second cavity. A third flexible pump, the third flexible pump including a third reservoir and a third tubular cavity; A switch, wherein the switch is in fluid communication with the first cavity, the second cavity, and the third cavity; as well as A patient connector configured to connect to a patient catheter or infusion line, the switch being movable between a first position, a second position, and a third position, wherein in the first position, a first lumen is in fluid communication with the patient connector, and the second and third lumens are isolated from the patient connector; in the second position, the second lumen is in fluid communication with the patient connector, and the first and third lumens are isolated from the patient connector; and in the third position, the third lumen is in fluid communication with the patient connector, and the first and second lumens are isolated from the patient connector.

2. The system according to claim 1 further includes an input valve located between the patient connector and the switch, the input valve including a medical connector interface, wherein, The input valve is movable between a first position, a second position, and a third position, in which the medical connector interface is in fluid communication with the switch; in the second position, the medical connector interface is in fluid communication with the patient connector; and in the third position, the medical connector interface is isolated from the patient connector and the switch.

3. The system of claim 2 further includes a manifold located between the input valve and the switch, the manifold receiving the first cavity, the second cavity and the third cavity, and including an output cavity in fluid communication with the input valve.

4. The system according to any one of claims 1, wherein, The diameter of the first cavity is smaller than the diameter of the second cavity and the diameter of the third cavity.

5. The system according to any one of claims 1, wherein, The volume of the first reservoir is greater than the volume of the second reservoir and the volume of the third reservoir.

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