Syringe 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 and second syringes are releasably coupled to a syringe mounting rack 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 respective syringe. In a priming 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 a fluid flow into a second syringe cavity.

Description

[Technical field]

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

[0002] Medical procedures often involve injecting a patient with a medical fluid (e.g., saline or a medical solution) using an intravenous (IV) catheter connected to a fluid source, e.g., a syringe, via 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., over six feet. Additionally, the tubing may be primed with saline prior to injection of 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 the liquid medication is delivered to the patient. Summary of the Invention

[0004] The disclosed subject matter relates to a syringe control assembly. In certain embodiments, the syringe control assembly includes an assembly body including a syringe mounting rack, a first syringe releasably coupled to the syringe mounting rack, the first syringe body defining a first syringe cavity and a first syringe port in fluid communication with the first syringe cavity, and a second syringe releasably coupled to the syringe mounting rack, the second syringe body defining a second syringe cavity and a second syringe port in fluid communication with the second syringe cavity. A syringe control assembly is disclosed comprising: a first pump unit in fluid communication with the first syringe port via a first pump tubing; and a pump assembly coupled to an assembly body, the 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 priming 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 drug is disclosed that includes pumping a drug from a first drug syringe into a delivery channel of a tubing and pumping a medical fluid from a return channel of the tubing into a return syringe.

[0006] In certain embodiments, a drug delivery system includes a syringe control assembly including an assembly body including a syringe mounting rack, a first syringe releasably coupled to the syringe mounting rack, the first syringe body defining a first syringe cavity and a first syringe port, the first syringe port being in fluid communication with the first syringe cavity, a second syringe releasably coupled to the syringe mounting rack, the second syringe body defining a second syringe cavity and a second syringe port, the second syringe port being in fluid communication with the second syringe cavity, and an assembly body including a syringe mounting rack. a pump assembly coupled to a syringe body, the pump assembly including a first pump unit in fluid communication with a 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, where in a priming configuration, the delivery flow path is in fluid communication with the first pump unit to pump 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 fluid flow from the return flow path into the second syringe cavity.

[0007] It is understood that various configurations of the subject technology will be readily apparent to those skilled in the art from this disclosure, and that the various configurations of the subject technology have been shown and described by way of example. As will be appreciated, the subject technology is capable of other different configurations, and its several details are capable of modification in various other respects, all without departing from the scope of the subject technology. Accordingly, the summary, drawings, and detailed description are to be regarded as illustrative in nature and not restrictive.

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

[0009] [Figure 1] FIG. 1 is a perspective view of a drug delivery system in a priming configuration according to various aspects of the present disclosure. [Diagram 2] 2 is a perspective view of the drug delivery system of FIG. 1 in a delivery configuration according to various embodiments of the present disclosure. [Diagram 3] 2 is a perspective view of the drug delivery system of FIG. 1 in a pushing configuration according to various embodiments of the present disclosure. [Figure 4] FIG. 2 is a reverse perspective view of the syringe control assembly of FIG. 1 according to various embodiments of the present disclosure. [Diagram 5] FIG. 2 is a partial cross-sectional view of the syringe control assembly of FIG. 1 according to various embodiments of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The disclosed syringe control assembly incorporates a syringe with a respective pump unit for controlling the fluid flow of the drug and saline. The syringe control assembly can control the delivery and return flow of medical fluids such as drug and saline. By controlling the fluid flow of the medical fluid, the priming and delivery of the drug and other medical fluids can be simplified.

[0011] The detailed description set forth below is intended as a description of various configurations of the subject technology, and is not intended to represent the only configurations in which the subject technology may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the subject technology. However, it will be apparent to those skilled in the art that the subject technology may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring the concepts of the subject technology. Similar components are labeled with the same element numbers for ease of understanding. Reference numbers may have suffixes to indicate separate instances of common elements, but are generally referred to by the same numbers without suffixes.

[0012] While the following description is directed to administering a medical fluid using the disclosed syringe control assembly, it should be understood that this description is merely one example of use and is not intended to limit the scope of the claims. Various aspects of the disclosed syringe control assembly may be used in any application in which it is desirable to provide for the administration of a medical fluid.

[0013] 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 excess medical fluid, such as saline, to the patient. Additionally, conventional syringes may require manual sequential advancement and retraction. Excess medical fluid may delay delivery of medical fluid, may be unacceptable to fluid-limited patients, such as premature infants, and manual operation of conventional syringes is subject to error, making the use of conventional syringes undesirable.

[0014] It is therefore advantageous, in accordance with the present disclosure, to provide a syringe control assembly as described herein that eliminates or substantially reduces the delivery of excess medical fluid to a patient and simplifies the operation of the syringe. The disclosed syringe assembly provides a pump unit that allows for simplified operation while reducing excess medical fluid delivered to a patient.

[0015] An example of a syringe control assembly that prevents the delivery of excess medical fluid is discussed herein.

[0016] 1 is a perspective view of a drug delivery system 100 in a priming configuration according to various aspects of the present disclosure. In the illustrated example, the drug delivery system 100 delivers a drug from a syringe control assembly 130 through a catheter 112 to a patient without delivering excess fluid, such as saline, used to prime the drug delivery system 100.

[0017] Optionally, prior to administering or priming the agent, the delivery channel 122a of the multi-lumen tubing 120 can be primed with saline to remove any air or trapped gas within the delivery channel 122a. The saline can be advanced from the syringe control assembly 130 through the delivery channel 122a to the valve 110.

[0018] Saline from delivery channel 122a of multi-lumen tubing 120 may be received within valve 110. In a priming configuration, valve 110 may prevent saline from delivery channel 122a from entering catheter 112 and may instead direct the saline through return channel 124 to allow primed saline to be returned to syringe control assembly 130. Similarly, delivery channel 122b may be primed with saline.

[0019] In the illustrated example, the syringe control assembly 130 advances the agent in the delivery channel 122a to prime the delivery channel 122a. Advantageously, by priming the delivery channel 122a with the agent, the agent can be delivered to the patient through the catheter 112 proximal to the patient with less delay and without delivering the saline used to prime the delivery channel 122a of the multi-lumen tubing 120.

[0020] To introduce the drug into the delivery channel 122a, the syringe control assembly 130 includes a first drug pump unit 148 that pumps or draws the drug from a first drug syringe 140 via tubing 146 and pumps or directs the drug through the delivery channel 122a.

[0021] In the illustrated embodiment, the first drug administered by the syringe control assembly 130 is stored in a 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 defined in the syringe body. The first drug from the cavity 142 is drawn through a port 144 by a first drug pump unit 148. The first drug is directed from a port 164 to the first drug pump unit 148 via tubing 146. In some embodiments, the port 144 can include a check valve to prevent backflow of the first drug, saline, or other medical fluid into the cavity 142 of the first drug syringe 140. As illustrated, the first drug syringe 140 can be releasably coupled to a syringe mounting rack 132. Optionally, the syringe mounting rack 132 may include quick release attachment points to allow for quick attachment, removal, or replacement of the first medicament syringe 140 or other components. The syringe mounting rack 132 may be coupled to the assembly body 134.

[0022] In some embodiments, the first drug pump unit 148 includes a pump that applies fluid pressure to provide fluid flow from the first drug syringe 140 to the drug. As described herein, various types of pumps may be utilized. Similarly, various types of motors or actuators may be used to actuate the pump. As shown, the first drug pump unit 148 may be coupled to a pump assembly 138. The pump assembly 138 may be coupled to the assembly body 134. Optionally, the pump assembly 138 may form a part of a base 139 of the syringe control assembly 130.

[0023] In some embodiments, the operating parameters of the first drug pump unit 148, such as the fluid flow rate and / or fluid pressure provided, may be adjusted either before or during operation. Optionally, in some embodiments, the first drug pump unit 148 may function as an on / off valve, allowing flow therethrough when the pump portion is active and preventing flow therethrough (including backflow and crossflow) when the pump portion is inactive.

[0024] Optionally, first drug pump unit 148 may be configured to pump or dispense a desired amount of drug from first drug syringe 140 into delivery channel 122a of multi-lumen tubing 120, the amount being equal to the volume of delivery channel 122a. In other words, first drug pump unit 148 may be operated to fill the volume of delivery channel 122a up to valve 110 to prime delivery channel 122a with the first drug to prime the first drug for administration via catheter 112.

[0025] In some embodiments, the priming of the first agent into the delivery channel 122a may be controlled, automated, or otherwise simplified. For example, the operation of the first agent pump unit 148 may be controlled or automated such that it is started, stopped, or sequenced to allow a desired amount of the first agent to be introduced into the delivery channel 122a.

[0026] Optionally, the syringe control assembly 130 includes a second agent syringe 150 to facilitate administration of a secondary agent or an additional amount of the first agent. As described herein, the secondary agent may be administered simultaneously with the first agent or sequentially. Similarly, the secondary agent may be advanced within the delivery channel 122b to prime the delivery channel 122b.

[0027] To introduce the drug into the delivery channel 122b, the syringe control assembly 130 includes a second drug pump unit 158 ​​that pumps or draws the drug from the second drug syringe 150 via tubing 156 and pumps or directs the drug through the delivery channel 122b.

[0028] In the illustrated embodiment, the second drug administered by the syringe control assembly 130 is stored in a 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 defined in the syringe body. The second drug from the cavity 152 is drawn through a port 154 by a second drug pump unit 158. The second drug is directed from the port 154 to the second drug pump unit 158 ​​via tubing 156. In some embodiments, the port 154 can include a check valve to prevent backflow of the second drug, saline, or other medical fluid into the cavity 152 of the second drug syringe 150. As illustrated, the second drug syringe 150 can be releasably coupled to the syringe mounting rack 132.

[0029] In some embodiments, the second drug pump unit 158 ​​includes a pump that provides fluid pressure to provide fluid flow to the drug from the second drug syringe 150. As shown, the second drug pump unit 158 ​​can be coupled to the pump assembly 138.

[0030] In some embodiments, the operating parameters of the second drug pump unit 158, such as the fluid flow rate and / or fluid pressure provided, may be adjusted either before or during operation. Optionally, in some embodiments, the second drug pump unit 158 ​​may function as an on / off valve, allowing flow therethrough when the pump portion is active and preventing flow (including backflow and crossflow) therethrough when the pump portion is inactive.

[0031] Optionally, second drug pump unit 158 ​​may be configured to pump or dispense a desired amount of drug from second drug syringe 150 into delivery channel 122b of multi-lumen tubing 120, the amount being equal to the volume of delivery channel 122b. In other words, second drug pump unit 158 ​​may be operated to fill the volume of delivery channel 122b up to valve 110 to prime delivery channel 122b with the second drug for priming the second drug for administration via catheter 112.

[0032] In some embodiments, the priming of the second agent into the delivery channel 122b may be controlled, automated, or otherwise simplified. For example, the operation of the second agent pump unit 158 ​​may be controlled or automated to be started, stopped, or sequenced to allow a desired amount of the second agent to be introduced into the delivery channel 122b. As can be appreciated, the second agent pump unit 158 ​​may be configured to prime the delivery channel 122b sequentially or simultaneously with the first agent pump unit 148.

[0033] As shown, when a first agent is introduced into the delivery channel 122a of the multi-lumen tubing 120, any saline or other medical fluid pre-primed therethrough is displaced. Similarly, when a second agent is introduced into the delivery channel 122b of the multi-lumen tubing 120, any saline or other medical fluid pre-primed therethrough is displaced. The displaced fluid is directed into the return channel 124 by the valve 110. In some applications, pressure from the first drug pump unit 148 and / or the second drug pump unit 158 ​​may be sufficient to force the displaced medical fluid to the syringe control assembly 130. In some embodiments, the displaced fluid from the return channel 124 may be drawn or pumped by the syringe control assembly 130.

[0034] For example, to facilitate the flow of displaced medical fluid from the return flow path 124, the syringe control assembly 130 includes a return pump unit 178 that pumps or draws the displaced fluid from the return flow path 124 and pumps or directs the fluid to the return syringe 170 via tubing 176.

[0035] In the illustrated embodiment, the return pump unit 178 includes a pump for applying fluid pressure to the displaced fluid in the return flow passage 124. As shown, the return pump unit 178 may be coupled to the pump assembly 138.

[0036] In some embodiments, the operating parameters of the return pump unit 178, such as the fluid flow rate and / or fluid pressure provided, may be adjusted either before or during operation. Optionally, in some embodiments, the return pump unit 178 may function as an on / off valve, allowing flow therethrough when the pump portion is active and preventing flow (including backflow and crossflow) therethrough when the pump portion is inactive.

[0037] Optionally, return pump unit 178 may be configured to facilitate a priming operation. For example, return pump unit 178 may be configured to pump or dispense an amount of displaced fluid corresponding to the amount of drug or other fluid introduced during priming. In other embodiments, return pump unit 178 may operate simultaneously during the priming operations of first drug pump unit 148 and / or second drug pump unit 158.

[0038] In some embodiments, the return pump unit 178 may be controlled to be started, stopped, or sequenced in cooperation with the first drug pump unit 148 and / or the second drug pump unit 158 ​​until the priming operation is completed.

[0039] In the illustrated embodiment, the displaced 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 return fluid in a cavity 172 defined in the return syringe body. The return fluid may be introduced into the cavity 172 by a port 174 in fluid communication with a return pump unit 178. Tubing 176 may direct flow from the return pump unit 178 to the port 174. In some embodiments, the port 174 may include a check valve to prevent the return fluid from exiting the cavity 172. As illustrated, the return syringe 170 may be releasably coupled to the syringe mounting rack 132.

[0040] 2 is a perspective view of the drug delivery system 100 of FIG 1 in a delivery configuration, in accordance with various aspects of the present disclosure. In the illustrated example, the syringe control assembly 130 dispenses a drug to a patient via the catheter 112.

[0041] During a delivery operation, the first drug pump unit 148 is actuated to deliver a first drug from the first drug syringe 140 into the primed delivery channel 122a. As the first drug is delivered into the delivery channel 122a, the valve 110 is actuated to allow flow of the drug from the delivery channel 122a through the catheter 112 to the patient. In some embodiments, the valve 110 is actuated by fluid pressure or other actuation mechanism. Optionally, the valve 110 can be located proximal to the patient to minimize the length of the catheter 112, reduce the amount of saline administered to the patient, and shorten the delivery time of the drug.

[0042] Optionally, the second drug pump unit 158 ​​is actuated to pump a second drug from the second drug syringe 150 into the primed delivery channel 122b. Similarly, the valve 110 can enable flow of the drug from the delivery channel 122b through the catheter 112 to the patient. In some embodiments, the second drug can be delivered to the patient sequentially after the first drug. In some applications, the second drug can be delivered simultaneously with the first drug, with the flows of the first and second drugs joining at the valve 110 and administered to the patient through the catheter 112.

[0043] 3 is a perspective view of the drug delivery system 100 of FIG. 1 in a pushing configuration, according to various aspects of the disclosure. In the illustrated example, the syringe control assembly 130 can advance saline through the delivery channel 122a and / or delivery channel 122b of the multi-lumen tubing 120 to advance the remaining drug through the catheter 112 to the patient.

[0044] For example, after the first medicament is expelled from the syringe control assembly 130, the first medicament may remain within the volume of the delivery channel 122a. To ensure that the medicament is fully delivered to the patient at the desired dosage, the syringe control assembly 130 may be utilized to administer a saline "push" to continue advancing the medicament through the delivery channel 122a after the medicament in the first medicament syringe 140 is depleted. In some applications, saline may be administered through the delivery channel 122a until the medicament is fully administered to the patient. Similarly, saline may be administered through the delivery channel 122b until the medicament is fully administered to the patient.

[0045] In some embodiments, the syringe control assembly 130 includes a saline syringe 160 that facilitates administration of a saline push within the delivery channel 122a and / or delivery channel 122b to advance the remaining agent therein.

[0046] To introduce saline into delivery channel 122a and / or delivery channel 122b, syringe control assembly 130 includes a saline pump unit 168 that pumps or draws saline from saline syringe 160 via tubing 166 and pumps or directs the saline through delivery channel 122a and / or delivery channel 122b.

[0047] 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 the saline in a cavity 162 defined in the syringe body. The saline from the cavity 162 is drawn through a port 164 by a saline pump unit 168. The saline is directed from the port 164 to the saline pump unit 168 via tubing 166. In some embodiments, the port 164 can include a check valve to prevent backflow of medication, saline, or other medical fluids into the cavity 162 of the saline syringe 160. As illustrated, the saline syringe 160 can be releasably coupled to the syringe mounting rack 132.

[0048] In some embodiments, the saline pump unit 168 includes a pump that provides fluid pressure to provide fluid flow from the saline syringe 160 to the medication. As shown, the saline pump unit 168 can be coupled to the pump assembly 138.

[0049] In some embodiments, operating parameters of the saline pump unit 168, such as the fluid flow rate and / or fluid pressure provided, may be adjusted either prior to or during operation. In some embodiments, the saline pump unit 168 may be in fluid communication with and operated simultaneously with the first drug pump unit 148 and / or the second drug pump unit 158. Optionally, in some embodiments, the saline pump unit 168 may function as an on / off valve, allowing flow therethrough when the pump portion is active and preventing flow therethrough (including backflow and crossflow) when the pump portion is inactive.

[0050] Optionally, saline pump unit 168 may be configured to pump or dispense a desired amount of saline from saline syringe 160 into delivery channel 122a and / or delivery channel 122b of multi-lumen tubing 120 sufficient to push or administer a desired amount of medication to a patient. In some embodiments, the pushing of medication into delivery channel 122a and / or delivery channel 122b may be controlled, automated, or otherwise simplified. For example, operation of saline pump unit 168 may be controlled or automated to be started, stopped, or sequenced to allow a desired amount of saline to be introduced into delivery channel 122a and / or delivery channel 122b.

[0051] 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 channels 122a and / or 122b. In some embodiments, the saline manifold 136 may be coupled to or formed with the assembly body 134. Optionally, the saline manifold may be disposed between the syringe mounting rack 132 and the pump assembly 138. As shown, the saline manifold 136 receives a flow of saline from the saline pump unit 168 at the manifold inlet 135 via manifold inlet tubing 167. The flow of saline in the saline manifold 136 is directed by a first manifold outlet 137a via manifold outlet tubing 169a to the first drug pump unit 148 and by a second manifold outlet 137b via manifold outlet tubing 169b to the second drug pump unit 158. As described herein, first drug pump unit 148 and second drug pump unit 158 ​​can allow or prevent flow therethrough.

[0052] For example, to provide a saline push of drug in delivery channel 122a, the first drug pump unit 148 can be operated to allow saline to flow from the saline manifold 136 to the delivery channel 122a while advancing the drug therethrough. 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. Optionally, to provide a saline push of drug in delivery channel 122b, the second drug pump unit 158 ​​can be operated to allow saline to flow from the saline manifold 136 to the delivery channel while advancing the drug therethrough. 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.

[0053] 4 is a reverse perspective view of syringe control assembly 130 of FIG. 1 according to various aspects of the disclosure. FIG. 5 is a partial cross-sectional view of syringe control assembly 130 of FIG. 1 according to various aspects of the disclosure. In some embodiments, syringe control assembly 130 can include first drug pump unit 148, second drug pump unit 158, saline pump unit 168, and / or return pump unit 178 to control and direct fluid flow for drug delivery system 100. Although FIGS. 4 and 5 show first drug pump unit 148, features described with respect to embodiments of first drug pump unit 148 may be included with respect to embodiments of second drug pump unit 158, saline pump unit 168, and / or return pump unit 178.

[0054] As shown, the first drug pump unit 148 includes a rotary pump 184 for pressurizing the medical fluid and providing a fluid flow. Optionally, the rotary pump 184 can be disposable. In 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.

[0055] The rotary pump 184 is rotatable by a motor 180. The shaft of the motor 180 can be coupled to the rotary pump 184 to transmit rotation by a coupling 182. The coupling 182 can be secured with a set screw 183. In some embodiments, the coupling 182 can be biased with 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 that allows control of the position of the rotary pump 184 and allows for precise dispensing of the drug.

[0056] This disclosure is provided to enable those skilled in the art to practice the various aspects described herein. This 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 readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects.

[0057] Reference to an element in the singular does not mean "one and only one" unless specifically stated otherwise, but rather "one or more." The term "several" refers to one or more, unless specifically stated otherwise. Masculine acronyms (e.g., his) include feminine and neuter genders (e.g., hers and its), and vice versa. Headings and subheadings, if any, are used for convenience only and are not intended to limit the invention.

[0058] The term "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, various alternative configurations and operations described herein may be considered at least equivalent herein.

[0059] A phrase such as "aspect" does not imply that such aspect is essential to the subject technology or that such aspect applies to all configurations of the subject technology. Disclosure regarding an aspect may apply to all configurations, or to one or more configurations. An aspect may provide one or more examples. A phrase such as an aspect may refer to one or more aspects, or vice versa. A phrase such as "embodiment" does not imply that such an embodiment is essential to the subject technology or that such an embodiment applies to all configurations of the subject technology. Disclosure regarding an embodiment may apply to all embodiments, or to one or more embodiments. An embodiment may provide one or more examples. A phrase such as an embodiment may refer to one or more embodiments, or vice versa. A phrase such as "configuration" does not imply that such a configuration is essential to the subject technology or that such a configuration applies to all configurations of the subject technology. Disclosure regarding a configuration may apply to all configurations, or to one or more configurations. A configuration may provide one or more examples. A phrase such as a configuration may refer to one or more configurations, or vice versa.

[0060] In one aspect, unless otherwise specified, all measurements, values, ratings, positions, dimensions, sizes, and other specifications set forth in this specification, including the claims, are approximate and not exact, and are intended to have a reasonable range consistent with the function to which they relate and that which is customary in the art to which they pertain.

[0061] In one embodiment, a term such as "coupled" can refer to being directly coupled. In another embodiment, a term such as "coupled" can refer to being indirectly coupled.

[0062] Terms such as "top," "bottom," "front," "rear," and the like, as used in this disclosure, should be understood to refer to any frame of reference other than the usual frame of reference of gravity. Thus, top, bottom, front, and rear surfaces can extend upward, downward, diagonally, or horizontally within the frame of reference of gravity.

[0063] Various items may be arranged differently (e.g., arranged in a different order or divided in a different manner) without departing from the scope of the subject technology. All structural and functional equivalents to the elements of the various embodiments described throughout this disclosure that are known or that later become known to those of skill in the art are intended to be expressly incorporated herein by reference and encompassed by the claims. Furthermore, nothing disclosed herein is intended to be an open invention, regardless of whether such disclosure is expressly set forth in the claims. No element of a claim shall be construed under the provisions of the sixth paragraph of 35 U.S.C. § 112 unless the element is expressly recited using the phrase "means for" or, in the case of a method claim, the element is recited using the phrase "step for". Furthermore, to the extent that terms such as "include", "have", and the like are used, such terms are intended to be inclusive in the same manner as the term "comprise" is construed when "comprise" is used as a transitional term in the claims.

[0064] The title, background, summary, brief description of the drawings and abstract of this disclosure are hereby incorporated into this disclosure and are provided as illustrative examples of this disclosure, not as a limiting description. This is submitted with the understanding that it will not be used to limit the scope or meaning of the claims. Furthermore, in the detailed description, it will be seen that the description provides illustrative examples, and that various features have been grouped together in various embodiments for the purpose of simplifying the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the claimed subject matter requires more features than are expressly recited in each claim. Rather, as the claims reflect, the inventive subject matter lies in less than all features of a single disclosed configuration or operation. The claims are incorporated herein into the detailed description, with each claim standing on its own as a separately claimed subject matter.

[0065] The claims are not intended to be limited to the embodiments described herein, but are to be accorded the full scope consistent with the language of the claims, including all legal equivalents. Nonetheless, none of the claims are intended, or should be construed, to cover subject matter that does not meet the requirements of 35 U.S.C. §§ 101, 102, or 103.

Claims

1. 1. A syringe control assembly comprising: an assembly body including a syringe mounting rack; a first syringe releasably coupled to the syringe mounting rack, the first syringe comprising a first syringe body defining a first syringe cavity and a first syringe port, the first syringe port in fluid communication with the first syringe cavity; a second syringe releasably coupled to the syringe mounting rack, the second syringe comprising a second syringe body defining a second syringe cavity and a second syringe port, the second syringe port in fluid communication with the second syringe cavity; a pump assembly coupled to the assembly body, 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 priming 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; a valve coupled to a catheter connecting the syringe control assembly to a patient, the valve configured to, in the priming configuration, prevent fluid flow from the first syringe cavity from entering the catheter and direct fluid flow from the first syringe cavity through the valve to the second syringe cavity; A syringe control assembly comprising:

2. a fluid manifold comprising a manifold inlet and a manifold outlet, the manifold inlet and the manifold outlet being in fluid communication, the manifold inlet being in fluid communication with the pump assembly, and the manifold outlet being in fluid communication with the first pump unit; a third syringe releasably coupled to the syringe mounting rack, the third syringe comprising a third syringe body defining a third syringe cavity and a third syringe port, the third syringe port being in fluid communication with the third syringe cavity; Further equipped with The pump assembly includes: and a third pump unit in fluid communication with the third syringe port via a third pump tubing, wherein in a dosing configuration, the third pump unit is configured to direct a fluid flow from the third syringe cavity into the manifold inlet and the first pump unit is configured to receive a fluid flow from the first syringe cavity and the manifold outlet. The syringe control assembly of claim 1 .

3. The syringe control assembly of claim 2 , wherein the fluid manifold is disposed between the syringe mounting rack and the pump assembly.

4. a fourth syringe releasably coupled to the syringe mounting rack, the fourth syringe comprising a fourth syringe body defining a fourth syringe cavity and a fourth syringe port, the fourth syringe port being in fluid communication with the fourth syringe cavity; Further equipped with The pump assembly includes: a fourth pump unit in fluid communication with the fourth syringe port via a fourth pump tube, the fourth pump unit configured to draw a fluid flow from the fourth syringe cavity. The syringe control assembly of claim 1 .

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

6. 5. The syringe control assembly of claim 4, wherein in a sequential delivery configuration, the first pump unit is configured to draw a fluid flow from the first syringe cavity, and then the fourth pump unit is configured to draw a fluid flow from the fourth syringe cavity.

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

8. 2. The syringe control assembly of claim 1, wherein a second syringe comprises a second check valve in fluid communication with the second syringe port, the second check valve preventing outflow from the second syringe cavity.

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

10. The syringe control assembly of claim 9 , wherein the pump comprises 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. 1. A drug delivery system comprising:

1. A syringe control assembly comprising: an assembly body including a syringe mounting rack; a first syringe releasably coupled to the syringe mounting rack, the first syringe comprising a first syringe body defining a first syringe cavity and a first syringe port, the first syringe port in fluid communication with the first syringe cavity; a second syringe releasably coupled to the syringe mounting rack, the second syringe comprising a second syringe body defining a second syringe cavity and a second syringe port, the second syringe port in fluid communication with the second syringe cavity; a pump assembly coupled to the assembly body, 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; a pump assembly comprising: a syringe control assembly comprising: tubing defining a delivery flow path and a return flow path, wherein in a priming configuration, the delivery flow path is in fluid communication with the first pump unit to pump 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 fluid flow from the return flow path into the second syringe cavity; a valve coupled to the tubing and to a catheter connecting the syringe control assembly to a patient, the valve configured to, in the priming configuration, prevent fluid flow from the delivery channel of the tubing from entering the catheter and to direct fluid flow from the delivery channel through the valve to the return channel; A drug delivery system comprising:

13. the syringe control assembly comprising: a fluid manifold comprising a manifold inlet and a manifold outlet, the manifold inlet and the manifold outlet being in fluid communication, the manifold inlet being in fluid communication with the pump assembly, and the manifold outlet being in fluid communication with the first pump unit; a third syringe releasably coupled to the syringe mounting rack, the third syringe comprising a third syringe body defining a third syringe cavity and a third syringe port, the third syringe port in fluid communication with the third syringe cavity; Further equipped with The pump assembly includes: and a third pump unit in fluid communication with the third syringe port via a third pump tube, wherein in an administration configuration, the third pump unit is configured to direct a fluid flow from the third syringe cavity into the manifold inlet and the first pump unit is configured to pump a fluid flow from the first syringe cavity and the manifold outlet through the delivery channel.

13. The drug delivery system of claim 12.

14. the syringe control assembly comprising: a fourth syringe releasably coupled to the syringe mounting rack, the fourth syringe comprising a fourth syringe body defining a fourth syringe cavity and a fourth syringe port, the fourth syringe port being in fluid communication with the fourth syringe cavity; Further equipped with The pump assembly includes: a fourth pump unit in fluid communication with the fourth syringe port via a fourth pump tubing, wherein in a secondary drug delivery configuration, the delivery channel is in fluid communication with the first pump unit and the fourth pump unit to pump fluid flow from the fourth syringe cavity through a second delivery channel of the tubing.

13. The drug delivery system of claim 12.

Images