Injector Control Assembly

Abstract

A syringe control assembly is described herein. The syringe control assembly includes an assembly body, a first syringe, a second syringe, and a pump assembly. The first syringe and the second syringe are releasably connected to a syringe mounting bracket of the assembly body. The pump assembly includes a first pump unit and a second pump unit. Each pump unit is in fluid communication with each corresponding syringe. In a pre-primed configuration, the first pump unit is configured to draw a fluid flow from a first syringe cavity, and the second pump unit is configured to pump the fluid flow into a second syringe cavity.

Description

Technical Field

[0001] The present disclosure relates generally to drug delivery systems, and more particularly to syringe control assemblies. Background Art

[0002] Medical treatments often involve infusing a patient with a medical fluid (e.g., saline solution or liquid medication) using an intravenous (IV) catheter that is connected to a fluid source, such as a syringe, by an arrangement of flexible tubing and fittings, commonly referred to as an "IV set." Certain configurations of IV sets may have extended lengths of tubing, e.g., in excess of 6 feet. Additionally, the tubing may be pre-primed with saline prior to infusing the liquid medication.

[0003] In some applications, during use of an IV catheter, saline from a priming process may be delivered to the patient before liquid medication is delivered to the patient. Summary of the invention

[0004] The disclosed subject matter relates to syringe control assemblies. In certain embodiments, a syringe control assembly is disclosed, comprising an assembly body including a syringe mounting bracket; a first syringe releasably coupled to the syringe mounting bracket, the first syringe including a first syringe body defining a first syringe cavity and a first syringe port, wherein the first syringe port is in fluid communication with the first syringe cavity; a second syringe releasably coupled to the syringe mounting bracket, the second syringe including a second syringe body defining a second syringe cavity and a second syringe port, wherein the second syringe port is in fluid communication with the second syringe cavity; and a pump assembly coupled to the assembly body, the pump assembly including: a first pump unit in fluid communication with the first syringe port via a first pump tubing; and a second pump unit in fluid communication with the second syringe port via a second pump tubing, wherein, in a pre-primed configuration, the first pump unit is configured to draw a fluid flow from the first syringe cavity and the second pump unit is configured to pump a fluid flow into the second syringe cavity.

[0005] In certain embodiments, a method of delivering a medication is disclosed, the method comprising pumping the medication from a first medication syringe into a delivery flow path of tubing; and pumping a medical fluid from a return flow path of tubing into a return syringe.

[0006] In certain embodiments, a drug delivery system is disclosed, which includes a syringe control assembly, the syringe control assembly comprising: an assembly body, the assembly body including a syringe mounting bracket; a first syringe releasably connected to the syringe mounting bracket, the first syringe including a first syringe body defining a first syringe cavity and a first syringe port, wherein the first syringe port is in fluid communication with the first syringe cavity; a second syringe releasably connected to the syringe mounting bracket, the second syringe including a second syringe body defining a second syringe cavity and a second syringe port, wherein the second syringe port is in fluid communication with the second syringe cavity; and a pump assembly connected to the assembly body, the pump assembly including: a first pump unit in fluid communication with the first syringe port via a first pump tubing; and a second pump unit in fluid communication with the second syringe port via a second pump tubing; and tubing defining a delivery flow path and a return flow path, wherein, in a pre-primed configuration, the delivery flow path is in fluid communication with the first pump unit to pump a fluid flow from the first syringe cavity through the delivery flow path, and the return flow path is in fluid communication with the second pump unit to pump a fluid flow from the return flow path into the second syringe cavity.

[0007] It should be understood that, in light of the present disclosure, various configurations of the subject technology will become readily apparent to those skilled in the art, wherein the various configurations of the subject technology are shown and described by way of illustration. As will be appreciated, the subject technology can have other and different configurations, and its several details can be modified in various other aspects, all without departing from the scope of the subject technology. Therefore, the overview, drawings and detailed description are considered to be illustrative in nature, rather than restrictive. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings, which are included to provide a further understanding and are incorporated in and constitute a part of this specification, illustrate the disclosed embodiments and, together with the description, serve to explain the principles of the disclosed embodiments. In the drawings:

[0009] Figure 1 is a perspective view of a drug delivery system in a pre-filled configuration according to various aspects of the present disclosure.

[0010] Figure 2 is a conveying configuration according to various aspects of the present disclosure Figure 1 Perspective view of a drug delivery system.

[0011] Figure 3 In accordance with various aspects of the present disclosure, the Figure 1 Perspective view of a drug delivery system.

[0012] Figure 4According to various aspects of the present disclosure Figure 1 A reverse perspective view of the syringe control assembly.

[0013] Figure 5 According to various aspects of the present disclosure Figure 1 A partial cross-sectional view of an injector control assembly. DETAILED DESCRIPTION

[0014] The disclosed syringe control assembly includes a syringe with a corresponding pump unit to control the fluid flow of drugs and saline. The syringe control assembly can control the delivery and return flow of medical fluids (such as drugs and saline). By controlling the fluid flow of medical fluids, the pre-priming and delivery of drugs and other medical fluids can be simplified.

[0015] The detailed description set forth below is intended to be a description of the various configurations of the subject technology, rather than being intended to represent the unique configuration that the subject technology can be put into practice. The detailed description includes specific details, and the purpose is to provide a thorough understanding of the subject technology. However, it is clear to those skilled in the art that the subject technology can be implemented without these specific details. In some cases, well-known structures and components are shown in the form of block diagrams to avoid blurring the concept of the subject technology. For ease of understanding, similar components are marked with the same element number. Reference numerals may have additional letter suffixes to represent different instances of common elements, and common elements are generally referred to by the same numerals without suffix letters.

[0016] Although the following description is directed to administering medical fluids using the disclosed syringe control assembly, it should be understood that the description is merely an example of use and does not limit the scope of the claims. Various aspects of the disclosed syringe control assembly may be used in any application where it is desired to provide for the administration of medical fluids.

[0017] The disclosed syringe control assembly overcomes several challenges found with certain conventional syringes. One challenge with certain conventional syringes is that the syringe may deliver an excessive amount of medical fluid, such as saline, to the patient. In addition, conventional syringes may require manual advancement and retraction in sequence. Because the excess medical fluid may delay the delivery of the medical fluid and may be intolerable to fluid-restricted patients (e.g., premature infants), and because manual operation of conventional syringes may be error-prone, it is undesirable to use conventional syringes.

[0018] Therefore, according to the present disclosure, it is advantageous to provide a syringe control assembly as described herein that eliminates or greatly reduces the delivery of excessive medical fluid to a patient and simplifies the operation of the syringe. The disclosed syringe assembly provides a pump unit that allows simplified operation while reducing the delivery of excessive medical fluid to a patient.

[0019] Examples of syringe control assemblies that prevent delivery of excessive amounts of medical fluid are now described.

[0020] Figure 1 is a perspective view of a drug delivery system 100 in a pre-primed configuration according to various aspects of the present disclosure. In the illustrated example, the drug delivery system 100 delivers medication from the syringe control assembly 130 to the patient via the catheter 112 without delivering excess fluid, such as saline, used to prime the drug delivery system 100.

[0021] Optionally, prior to administering or pre-priming the drug, the delivery flow path 122a of the multi-lumen tubing 120 may be pre-primed with saline to remove any air or trapped gas within the delivery flow path 122a. Saline may be advanced from the syringe control assembly 130 through the delivery flow path 122a to the valve 110.

[0022] Saline from the delivery flow path 122a of the multi-lumen tubing 120 can be received within the valve 110. In the pre-primed configuration, the valve 110 can prevent saline from the delivery flow path 122a from entering the catheter 112, and can instead direct saline through the return flow path 124 to allow the pre-primed saline to return to the syringe control assembly 130. Similarly, the delivery flow path 122b can be pre-primed with saline.

[0023] In the example shown, the syringe control assembly 130 advances the drug within the delivery flow path 122a to pre-prime the delivery flow path 122a. Advantageously, by pre-priming the drug flow path 122a with the drug, the drug can be delivered to the patient via the catheter 112 close to the patient with less lag and without delivering saline used to pre-prime the delivery flow path 122a of the multi-lumen tubing 120.

[0024] To introduce the drug into the delivery flow path 122a, the syringe control assembly 130 includes a first drug pump unit 148 to pump or draw the drug from the first drug syringe 140 via the tube 146 and pump or guide the drug through the delivery flow path 122a.

[0025] In the illustrated embodiment, the first drug administered by the syringe control assembly 130 is stored in the first drug syringe 140. Optionally, the first drug syringe 140 is disposable. The first drug syringe 140 stores the first drug in a cavity 142, which is defined in the syringe body. The first drug pump unit 148 draws the first drug from the cavity 142 through the port 144. The first drug is guided to the first drug pump unit 148 via the tubing 146 from the port 164. In some embodiments, the port 144 may include a check valve to prevent the first drug, saline or other medical fluid from flowing back into the cavity 142 of the first drug syringe 140. As shown, the first drug syringe 140 can be releasably connected to the syringe mounting bracket 132. Optionally, the syringe mounting bracket 132 can include a quick release mounting point to allow quick attachment, removal or replacement of the first drug syringe 140 or other components. The syringe mounting bracket 132 can be connected to the assembly body 134.

[0026] In some embodiments, the first drug pump unit 148 includes a pump to apply fluid pressure to provide fluid flow for the drug from the first drug syringe 140. As described herein, various types of pumps can be used. Similarly, various types of motors or actuators can be used to actuate the pump. As shown, the first drug pump unit 148 can be coupled to the pump assembly 138. The pump assembly 138 can be coupled to the assembly body 134. Optionally, the pump assembly 138 can form a part of the base 139 of the syringe control assembly 130.

[0027] In some embodiments, operating parameters of first drug pump unit 148 (e.g., the amount of fluid flow provided and / or fluid pressure) can be adjusted prior to or during operation. Alternatively, in some embodiments, first drug pump unit 148 can function as an on / off valve, thereby allowing flow therethrough when the pump portion is activated, and preventing flow (including backflow and crossflow) therethrough when the pump portion is not activated.

[0028] Alternatively, the first drug pump unit 148 may be configured to pump or dispense a desired volume of the drug from the first drug syringe 140 into the delivery flow path 122a of the multi-lumen tubing 120, the volume pumped or dispensed being equal to the volume of the delivery flow path 122a. In other words, the first drug pump unit 148 may be operated to fill the volume of the delivery flow path 122a up to the valve 110, thereby pre-priming the delivery flow path 122a with the first drug to pre-prime the first drug for administration via the catheter 112.

[0029] In some embodiments, pre-priming of the first drug into the delivery flow path 122a can be controlled, automated, or otherwise simplified. For example, the operation of the first drug pump unit 148 can be controlled or automated to start, stop, or sequence to allow a desired volume of the first drug to be introduced into the delivery flow path 122a.

[0030] Optionally, the syringe control assembly 130 includes a second drug syringe 150 to facilitate administration of a secondary drug or an additional volume of the first drug. As described herein, the secondary drug can be administered simultaneously with the first drug, or can be administered sequentially. Similarly, the secondary drug can be advanced within the delivery flow path 122b to pre-prime the delivery flow path 122b.

[0031] To introduce the drug into the delivery flow path 122 b , the syringe control assembly 130 includes a second drug pump unit 158 ​​to pump or draw the drug from the second drug syringe 150 via the tube 156 and pump or guide the drug through the delivery flow path 122 b .

[0032] In the illustrated embodiment, the second drug administered by the syringe control assembly 130 is stored in the second drug syringe 150. Optionally, the second drug syringe 150 is disposable. The second drug syringe 150 stores the second drug in a cavity 152, which is defined in the syringe body. The second drug pump unit 158 ​​draws the second drug from the cavity 152 through the port 154. The second drug is guided from the port 154 to the second drug pump unit 158 ​​via the tubing 156. In some embodiments, the port 154 may include a check valve to prevent the second drug, saline or other medical fluid from flowing back into the cavity 152 of the second drug syringe 150. As shown, the second drug syringe 150 can be releasably connected to the syringe mounting bracket 132.

[0033] In some embodiments, second drug pump unit 158 ​​includes a pump to apply fluid pressure to provide fluid flow for the drug from second drug syringe 150. Second drug pump unit 158 ​​can be coupled to pump assembly 138 as shown.

[0034] In some embodiments, operating parameters of second drug pump unit 158 ​​(e.g., the amount of fluid flow provided and / or fluid pressure) can be adjusted prior to or during operation. Alternatively, in some embodiments, second drug pump unit 158 ​​can function as an on / off valve, thereby allowing flow therethrough when the pump portion is activated, and preventing flow (including backflow and crossflow) therethrough when the pump portion is not activated.

[0035] Alternatively, the second drug pump unit 158 ​​may be configured to pump or dispense a desired volume of the drug from the second drug syringe 150 into the delivery flow path 122 b of the multi-lumen tubing 120, the volume of the drug pumped or dispensed being equal to the volume of the delivery flow path 122 b. In other words, the second drug pump unit 158 ​​may be operated to fill the volume of the delivery flow path 122 b up to the valve 110, thereby pre-priming the delivery flow path 122 b with the second drug to pre-prime the second drug for administration via the catheter 112.

[0036] In some embodiments, the pre-priming of the second drug into the delivery flow path 122b can be controlled, automated, or otherwise simplified. For example, the operation of the second drug pump unit 158 ​​can be controlled or automated to start, stop, or sequence, thereby allowing a desired volume of the second drug to be introduced into the delivery flow path 122b. It is understood that the second drug pump unit 158 ​​can be configured to pre-prime the delivery flow path 122b sequentially or simultaneously with the first drug pump unit 148.

[0037] As shown, as the first drug is introduced into the delivery flow path 122a of the multi-lumen tubing 120, any saline or other medical fluid previously pre-filled through the delivery flow path 122a is displaced. Similarly, as the second drug is introduced into the delivery flow path 122b of the multi-lumen tubing 120, any saline or other medical fluid previously pre-filled through the delivery flow path 122b is displaced. The displaced fluid is directed by the valve 110 into the return flow path 124. In some applications, the pressure from the first drug pump unit 148 and / or the second drug pump unit 158 ​​can be sufficient to cause the displaced medical fluid to flow to the syringe control assembly 130. In some embodiments, the displaced fluid from the return flow path 124 can be drawn or pumped by the syringe control assembly 130.

[0038] For example, to facilitate flow of displaced medical fluid from return flow path 124 , syringe control assembly 130 includes a return pump unit 178 to pump or draw displaced fluid from return flow path 124 and pump or direct the fluid to return syringe 170 via tubing 176 .

[0039] In the illustrated embodiment, the return pump unit 178 includes a pump to apply fluid pressure to the displaced fluid within the return flow path 124. The return pump unit 178 may be coupled to the pump assembly 138 as shown.

[0040] In some embodiments, the operating parameters of the return pump unit 178 (e.g., the amount of fluid flow provided and / or the fluid pressure) can be adjusted prior to or during operation. Alternatively, in some embodiments, the return pump unit 178 can function as an on / off valve, thereby allowing flow through when the pump portion is activated and preventing flow (including backflow and crossflow) therethrough when the pump portion is not activated.

[0041] Optionally, return pump unit 178 can be configured to facilitate the pre-priming operation. For example, return pump unit 178 can be configured to pump or dispense a volume of displacement fluid corresponding to the amount of drug or other fluid introduced during the pre-priming period. In other embodiments, return pump unit 178 can be operated simultaneously during the pre-priming operation of first drug pump unit 148 and / or second drug pump unit 158.

[0042] In some embodiments, the return pump unit 178 may be controlled to start, stop, or sequence in coordination with the first drug pump unit 148 and / or the second drug pump unit 158 ​​until the priming operation is completed.

[0043] In the illustrated embodiment, the displacement fluid received by the syringe control assembly 130 is stored in a return syringe 170. Optionally, the return syringe 170 is disposable. The return syringe 170 stores the returned fluid in a cavity 172, which is defined in the syringe body. The returned fluid can be introduced into the cavity 172 through a port 174 that is in fluid communication with a return pump unit 178. A tubing 176 can direct the flow from the return pump unit 178 to the port 174. In some embodiments, the port 174 can include a check valve to prevent the returned fluid from flowing out of the cavity 172. As shown, the return syringe 170 can be releasably coupled to the syringe mounting bracket 132.

[0044] Figure 2 is a conveying configuration according to various aspects of the present disclosure Figure 1 1. A perspective view of a drug delivery system 100. In the example shown, a syringe control assembly 130 dispenses a drug to a patient through a catheter 112.

[0045] During the delivery operation, the first drug pump unit 148 is activated to deliver the first drug from the first drug syringe 140 into the pre-filled delivery flow path 122a. As the first drug is delivered into the delivery flow path 122a, the valve 110 is actuated to allow the drug to flow from the delivery flow path 122a to the patient via the catheter 112. In some embodiments, the valve 110 is actuated by fluid pressure or other actuation mechanisms. Optionally, the valve 110 can be positioned close to the patient to minimize the length of the catheter 112, thereby reducing the amount of saline administered to the patient and reducing the delivery time of the drug.

[0046] Optionally, the second drug pump unit 158 ​​is activated to deliver the second drug from the second drug syringe 150 to the pre-filled delivery flow path 122b. Similarly, the valve 110 can allow the drug to flow from the delivery flow path 122b to the patient via the catheter 112. In some embodiments, the second drug can be delivered to the patient in sequence after the first drug. In some applications, the second drug can be delivered simultaneously with the first drug, wherein the first drug and the second drug flow are combined at the valve 110 to be administered to the patient via the catheter 112.

[0047] Figure 3 In accordance with various aspects of the present disclosure, the Figure 1 1 is a perspective view of the drug delivery system 100. In the illustrated example, the syringe control assembly 130 can advance saline through the delivery flow path 122a and / or the delivery flow path 122b of the multi-lumen tubing 120 to advance the remaining drug to the patient via the catheter 112.

[0048] For example, after the first medicament is expelled from the syringe control assembly 130, the first medicament can remain in the volume of the delivery flow path 122a. To ensure that the medicament is completely delivered to the patient at the desired dose, after the medicament in the first medicament syringe 140 is exhausted, a saline "push" can be applied using the syringe control assembly 130 to continue to advance the medicament through the delivery flow path 122a. In some applications, saline can be applied through the delivery flow path 122a until the medicament is completely administered to the patient. Similarly, saline can be applied through the delivery flow path 122b until the medicament is completely administered to the patient.

[0049] In some embodiments, the syringe control assembly 130 includes a saline syringe 160 to facilitate administering a saline push within the delivery flow path 122a and / or the delivery flow path 122b to advance any remaining medication therein.

[0050] To introduce saline into delivery flow path 122a and / or delivery flow path 122b, syringe control assembly 130 includes a saline pump unit 168 to pump or draw saline from saline syringe 160 via tubing 166 and pump or direct saline through delivery flow path 122a and / or delivery flow path 122b.

[0051] In the illustrated embodiment, the saline administered by the syringe control assembly 130 is stored in a saline syringe 160. Optionally, the saline syringe 160 is disposable. The saline syringe 160 stores saline in a cavity 162 defined within the syringe body. A saline pump unit 168 draws saline from the cavity 162 through a port 164. The saline is directed from the port 164 to the saline pump unit 168 via a tubing 166. In some embodiments, the port 164 may include a check valve to prevent the backflow of medication, saline, or other medical fluids into the cavity 162 of the saline syringe 160. As shown, the saline syringe 160 may be releasably coupled to the syringe mounting bracket 132.

[0052] In some embodiments, saline pump unit 168 includes a pump to apply fluid pressure to provide fluid flow for medication from saline syringe 160. Saline pump unit 168 can be coupled to pump assembly 138 as shown.

[0053] In some embodiments, the operating parameters of saline pump unit 168 (e.g., the amount of fluid flow provided and / or the fluid pressure) can be adjusted prior to or during operation. In some embodiments, saline pump unit 168 can be in fluid communication with first drug pump unit 148 and / or second drug pump unit 158 ​​and operate simultaneously with the first drug pump unit and / or the second drug pump unit. Alternatively, in some embodiments, saline pump unit 168 can function as an on / off valve, thereby allowing flow therethrough when the pump portion is activated, and preventing flow (including backflow and crossflow) therethrough when the pump portion is not activated.

[0054] Optionally, the saline pump unit 168 can be configured to pump or dispense a desired volume of saline from the saline syringe 160 into the delivery flow path 122a and / or the delivery flow path 122b of the multi-lumen tubing 120, the desired volume of saline sufficient to push or administer a desired amount of medication to a patient. In some embodiments, the pushing of medication in the delivery flow path 122a and / or the delivery flow path 122b can be controlled, automated, or otherwise simplified. For example, the operation of the saline pump unit 168 can be controlled or automated to start, stop, or sequence to allow a desired volume of saline to be introduced into the delivery flow path 122a and / or the delivery flow path 122b.

[0055] In some embodiments, the saline pump unit 168 directs saline from the saline syringe 160 to the saline manifold 136 to distribute the saline to the delivery flow path 122a and / or the delivery flow path 122b. In some embodiments, the saline manifold 136 can be coupled to the assembly body 134 or formed with the assembly body. Optionally, the saline manifold can be disposed between the syringe mounting bracket 132 and the pump assembly 138. As shown, the saline manifold 136 receives a saline flow from the saline pump unit 168 at the manifold inlet 135 via the manifold inlet fitting 167. The saline flow within the saline manifold 136 is directed to the first drug pump unit 148 via the manifold outlet fitting 169a through the first manifold outlet 137a, and is directed to the second drug pump unit 158 ​​via the manifold outlet fitting 169b through the second manifold outlet 137b. As described herein, the first drug pump unit 148 and the second drug pump unit 158 ​​can allow or prevent flow therethrough.

[0056] For example, to provide a saline push for the drug within the delivery flow path 122a, the first drug pump unit 148 can be operated to allow saline to flow from the saline manifold 136 to the delivery flow path 122a, thereby advancing the drug through the delivery flow path. To prevent backflow of saline, the saline pump unit 168 can be overdriven or otherwise configured to provide a greater fluid output than the first drug pump unit 148. Alternatively, to provide a saline push for the drug within the delivery flow path 122b, the second drug pump unit 158 ​​can be operated to allow saline to flow from the saline manifold 136 to the delivery flow path, thereby advancing the drug through the delivery flow path. Similarly, to prevent backflow of saline, the saline pump unit 168 can be overdriven or otherwise configured to provide a greater fluid output than the second drug pump unit 158.

[0057] Figure 4 According to various aspects of the present disclosure Figure 1 1 is a reverse perspective view of the syringe control assembly 130.

[0058] Figure 5 According to various aspects of the present disclosure Figure 1 1 is a partial cross-sectional view of the syringe control assembly 130. In some embodiments, the syringe control assembly 130 may include a first drug pump unit 148, a second drug pump unit 158, a saline pump unit 168, and / or a return pump unit 178 to control and direct the fluid flow of the drug delivery system 100. Figure 4 and Figure 5 A first drug pump unit 148 is depicted, but embodiments of the second drug pump unit 158 ​​, the saline pump unit 168 , and / or the return pump unit 178 may include features described with respect to the embodiment of the first drug pump unit 148 .

[0059] As shown, the first drug pump unit 148 includes a rotary pump 184 to pressurize the medical fluid and provide a fluid flow. Optionally, the rotary pump 184 can be disposable. During operation, the pump cavity 186 can receive a fluid flow from the first drug syringe 140. When actuated, the rotary pump 184 can pressurize the fluid in the pump cavity 186 to provide a fluid flow.

[0060] The rotary pump 184 can be rotated by the motor 180. The shaft of the motor 180 can be coupled to the rotary pump 184 to transmit the rotation through the coupling 182. The coupling 182 can be fixed with a set screw 183. In some embodiments, the coupling 182 can be biased by a spring 185 to provide a desired preload to the connection between the rotary pump 184 and the motor 180. In some embodiments, the motor 180 is a stepper motor to allow the position of the rotary pump 184 to be controlled and allow the drug to be accurately dispensed.

[0061] The present disclosure is provided to enable any person skilled in the art to practice the various aspects described herein. The present disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Various modifications to these aspects will be easily clear to those skilled in the art, and the general principles defined herein can be applied to other aspects.

[0062] Unless otherwise specified, references to elements in the singular are not intended to mean "one and only one," but rather "one or more." Unless otherwise specified, the term "some" refers to one or more. Masculine pronouns (such as his) include the feminine and neuter genders (such as her and its) and vice versa. Headings and subheadings, if any, are used for convenience only and do not limit the invention.

[0063] The word "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. In one aspect, the various alternative configurations and operations described herein may be considered to be at least equivalent.

[0064] Phrases, such as "aspects", do not mean that such aspects are essential to the subject technology, or that such aspects apply to all configurations of the subject technology. The disclosure related to aspects may apply to all configurations, or one or more configurations. An aspect may provide one or more examples. Phrases, such as aspects, may refer to one or more aspects, and vice versa. Phrases, such as "embodiments", do not mean that such embodiments are essential to the subject technology, or that such embodiments apply to all configurations of the subject technology. The disclosure related to embodiments may apply to all embodiments, or one or more embodiments. An embodiment may provide one or more examples. The phrases of such embodiments may refer to one or more embodiments, and vice versa. Phrases, such as "configurations", do not mean that such configurations are essential to the subject technology, or that such configurations apply to all configurations of the subject technology. The disclosure related to configurations may apply to all configurations, or one or more configurations. A configuration may provide one or more examples. Such configurations may refer to one or more configurations, and vice versa.

[0065] In one aspect, unless otherwise indicated, all measurements, values, ratings, positions, sizes, dimensions, and other specifications in this specification, including those set forth in the claims that follow, are approximate and not exact. In one aspect, they are intended to have a reasonable range consistent with the functions to which they are related and the customary practices in the art to which they belong.

[0066] In one aspect, the term "coupled" or the like may refer to a direct coupling. In another aspect, the term "coupled" or the like may refer to an indirect coupling.

[0067] Terms such as "top", "bottom", "front", "back", etc., if used in this disclosure, should be understood to refer to an arbitrary reference frame, not the ordinary gravitational reference frame. Thus, the top surface, bottom surface, front surface, and back surface can extend upward, downward, diagonally, or horizontally in the gravitational reference frame.

[0068] Various items may be arranged differently (e.g., arranged in a different order, or divided in a different manner), all without departing from the scope of the subject technology. All structural and functional equivalents of the elements throughout the various aspects of the disclosure description that are known or will be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, regardless of whether such disclosure is explicitly stated in the claims, the content disclosed herein is not intended to be dedicated to the public. According to the provisions of the sixth paragraph of 35 U.S.C. §112 (f), the elements of the claims will not be interpreted unless the phrase "means" is used to explicitly state the element, or in the case of a method claim, the phrase "step for..." is used to state the element. In addition, for the scope of the terms "including", "having", etc. used, such terms are intended to refer to inclusiveness in a manner similar to the term "comprising", as explained when "comprising" is used as a transitional word in the claims.

[0069] The title, background, overview, brief description of the drawings, and abstract of the present disclosure are incorporated into the present disclosure and are provided as illustrative examples of the present disclosure, rather than as limiting descriptions. Submission is based on the understanding that they will not be used to limit the scope or meaning of the claims. In addition, in the detailed description, it can be seen that the description provides illustrative examples, and in order to simplify the present disclosure, various features are combined together in various embodiments. The method of the present disclosure should not be interpreted as reflecting the intention that the claimed subject matter requires more features than the features explicitly stated in each claim. On the contrary, as reflected in the following claims, the subject matter of the present invention lies in less than all the features of a single disclosed construction or operation. The following claims are thus incorporated into the detailed description, and each claim is independently a subject matter claimed separately.

[0070] The claims are not intended to be limited to the aspects described herein, but are to be accorded the full scope consistent with the language of the claims and to encompass all legal equivalents. Nevertheless, no claim is intended to encompass subject matter that fails to satisfy the requirements of 35 U.S.C. §§ 101, 102, or 103, nor should they be interpreted in such a manner.

Claims

1. A syringe control assembly, comprising: an assembly body including a syringe mounting bracket; a first syringe releasably coupled to the syringe mounting bracket, the first syringe comprising a first syringe body defining a first syringe cavity and a first syringe port, wherein the first syringe port is in fluid communication with the first syringe cavity; a second syringe releasably coupled to the syringe mounting bracket, the second syringe comprising a second syringe body defining a second syringe cavity and a second syringe port, wherein the second syringe port is in fluid communication with the second syringe cavity; and A pump assembly coupled to the assembly body, the pump assembly comprising: a first pump unit in fluid communication with the first syringe port via a first pump tubing; a second pump unit in fluid communication with the second syringe port via a second pump tubing, wherein, in a pre-primed configuration, the first syringe cavity and the second syringe cavity are in fluid communication and the first pump unit is configured to draw a fluid flow from the first syringe cavity toward the catheter and the second pump unit is configured to pump a fluid flow from the first syringe cavity toward the second syringe cavity; and A valve is configured to prevent the flow of liquid from the first syringe cavity into the catheter and is configured to direct the flow of liquid from the first syringe cavity through the valve and toward the second syringe cavity in the pre-filled configuration.

2. The syringe control assembly according to claim 1, further comprising: a fluid manifold comprising a manifold inlet and a manifold outlet, wherein the manifold inlet and the manifold outlet are in fluid communication and the manifold outlet is in fluid communication with the first pump unit; and a third syringe releasably coupled to the syringe mounting bracket, the third syringe comprising a third syringe body defining a third syringe cavity and a third syringe port, wherein the third syringe port is in fluid communication with the third syringe cavity, Wherein, the pump assembly further comprises: a third pump unit, the third pump unit being fluidically connected to the third syringe port via a third pump tube, wherein, in a push configuration, the third pump unit is configured to direct fluid flow from the third syringe cavity into the manifold inlet, and the first pump unit is configured to receive fluid flow from the first syringe cavity and the manifold outlet.

3. The syringe control assembly according to claim 2, wherein: The fluid manifold is disposed between the syringe mounting bracket and the pump assembly.

4. The syringe control assembly of claim 1, further comprising: a fourth syringe releasably coupled to the syringe mounting bracket, the fourth syringe comprising a fourth syringe body defining a fourth syringe cavity and a fourth syringe port, wherein the fourth syringe port is in fluid communication with the fourth syringe cavity, Wherein, the pump assembly further comprises: A fourth pump unit is in fluid communication with the fourth syringe port via a fourth pump tubing, wherein the fourth pump unit is configured to draw fluid flow from the fourth syringe cavity.

5. The syringe control assembly according to claim 4, wherein: In a simultaneous delivery configuration, the fourth pump unit is configured to draw fluid flow from the fourth syringe cavity while the first pump unit is configured to draw fluid flow from the first syringe cavity.

6. The syringe control assembly according to claim 4, wherein: In the sequential delivery configuration, the fourth pump unit is configured to draw fluid flow from the fourth syringe cavity after the first pump unit is configured to draw fluid flow from the first syringe cavity.

7. The syringe control assembly of claim 1, wherein: The first syringe includes a first check valve in fluid communication with the first syringe port, wherein the first check valve prevents backflow into the first syringe cavity.

8. The syringe control assembly of claim 1, wherein: The second syringe includes a second check valve in fluid communication with the second syringe port, wherein the second check valve prevents flow out of the second syringe cavity.

9. The syringe control assembly of claim 1, wherein: The first pump unit comprises: a pump in fluid communication with the first syringe port; and A motor is coupled to the pump, wherein the motor is configured to actuate the pump.

10. The syringe control assembly of claim 9, wherein: The pump includes a pump cavity in fluid communication with the first syringe port.

11. The syringe control assembly of claim 9, wherein: The motor is coupled to the pump assembly.

12. A drug delivery system comprising: A syringe control assembly, the syringe control assembly comprising: an assembly body including a syringe mounting bracket; a first syringe releasably coupled to the syringe mounting bracket, the first syringe comprising a first syringe body defining a first syringe cavity and a first syringe port, wherein the first syringe port is in fluid communication with the first syringe cavity; a second syringe releasably coupled to the syringe mounting bracket, the second syringe comprising a second syringe body defining a second syringe cavity and a second syringe port, wherein the second syringe port is in fluid communication with the second syringe cavity; and a pump assembly coupled to the assembly body, the pump assembly comprising: a first pump unit in fluid communication with the first syringe port via a first pump tubing; and a second pump unit in fluid communication with the second syringe port via a second pump tubing; a tubing defining a delivery flow path and a return flow path, wherein, in a pre-primed configuration, the delivery flow path is in fluid communication with the return flow path, and the delivery flow path is in fluid communication with the first pump unit to pump a fluid flow from the first syringe cavity through the delivery flow path toward a catheter, and the return flow path is in fluid communication with the second pump unit to pump a fluid flow from the first syringe cavity through the delivery flow path toward the return flow path into the second syringe cavity; and A valve is configured to prevent liquid flow from the delivery flow path from entering the catheter and is configured to direct liquid flow from the delivery flow path through the valve and to the return flow path in a pre-priming configuration.

13. The drug delivery system of claim 12, wherein the syringe control assembly further comprises: a fluid manifold comprising a manifold inlet and a manifold outlet, wherein the manifold inlet and the manifold outlet are in fluid communication and the manifold outlet is in fluid communication with the first pump unit; and a third syringe releasably coupled to the syringe mounting bracket, the third syringe comprising a third syringe body defining a third syringe cavity and a third syringe port, wherein the third syringe port is in fluid communication with the third syringe cavity, Wherein, the pump assembly further comprises: a third pump unit, the third pump unit being fluidically connected to the third syringe port via a third pump tube, wherein, in a push configuration, the third pump unit is configured to direct fluid flow from the third syringe cavity into the manifold inlet, and the first pump unit is configured to pump fluid flow from the first syringe cavity and the manifold outlet through the delivery flow path.

14. The drug delivery system of claim 12, wherein the syringe control assembly further comprises: a fourth syringe releasably coupled to the syringe mounting bracket, the fourth syringe comprising a fourth syringe body defining a fourth syringe cavity and a fourth syringe port, wherein the fourth syringe port is in fluid communication with the fourth syringe cavity, Wherein, the pump assembly further comprises: a fourth pump unit in fluid communication with the fourth syringe port via a fourth pump tubing, wherein, in an auxiliary drug delivery configuration, the delivery flow path is in fluid communication with the first pump unit and the fourth pump unit to pump a fluid flow from the fourth syringe cavity through the second delivery flow path of the tubing.

15. The syringe control assembly of claim 1, wherein: A valve is configured to provide fluid communication between the first syringe cavity and the second syringe cavity in the pre-filled configuration.

16. The syringe control assembly of claim 15, wherein: The valve is configured to provide fluid communication between the first syringe cavity and the catheter in a delivery configuration.

17. The drug delivery system according to claim 12, wherein: A valve is configured to provide fluid communication between the delivery flow path and the return flow path in the pre-primed configuration.

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