# US 12,599,719 B2 · Closed system elastomeric pumping mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,599,719 B2 - Document ID: US12599719B2 - Status: Granted - Kind: B2 - Application number: 17/982,723 - Filed: 2022-11-08 - Published: 2023-03-23 - Granted: 2026-04-14 - Earliest claimed: 2018-01-11 - Applicants: Michael A. Merchant - Inventors: Michael A. Merchant - Web page: https://patentgrep.com/patent/US12599719B2 ## CPC - A61M 5/16881: {Regulating valves} - A61M 5/1413: {Modular systems comprising interconnecting elements} - A61M 5/14212: {Pumping with an aspiration and an expulsion action} - A61M 5/155: pressurised by gas {introduced into the reservoir} - A61M 5/16831: {Monitoring, detecting, signalling or eliminating infusion flow anomalies (low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066)} - A61M 39/08: Tubes; Storage means specially adapted therefor - A61M 39/26: Valves closing automatically on disconnecting the line and opening on reconnection thereof {(check valves A61M39/24)} - A61M 2039/2486: {Guided stem, e.g. reciprocating stopper} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A medicinal infusion system includes a safety valve for isolating residual medication by providing a single point of fluidic disconnect to encapsulate a residual fluid volume prone to spillage. The safety valve couples a medicinal repository such as an infusion pump to a medicinal supply, typically from a syringe or tubing. The safety valve includes a resilient, deformable, or hinged surface for isolating and sealing the medicinal flow to eliminate and/or isolate any residual volume in tubing and connectors. The isolating surface accommodates an inserted fitting or coupling for allowing the medicinal flow to fill the infusion pump. Upon disconnection, fluids on either side of the safety valve are therefore isolated on the respective fill or source sides, and residual volume prone to spillage is eliminated. ## Claims ### Claim 1 A medicinal infusion pumping device, comprising: an expandable surround around a medicinal repository, the medicinal repository adapted to store a volume of fluid for intravenous injection based on an air pressure in the expandable surround; a plurality of valves including a safety valve and a delivery side fluid disconnect securing a corresponding plurality of access ports in fluidic communication with the medicinal repository for metered patient delivery of the fluid, the access ports including at least an ingress port and a delivery port; the delivery side fluid disconnect securing the corresponding delivery port providing fluidic communication from the medicinal repository to the patient; and each valve of the plurality of valves providing a single point of fluidic disconnect and enforcement of unidirectional flow to encapsulate the fluid in the medicinal repository for patient delivery. ### Claim 2 (depends on 1) The device of claim 1 wherein each of the ingress port and delivery port is adapted for fluidic communication with a fill tube or delivery vessel, and the safety valve is configured for fluidic isolation to contain the fluid in the medicinal repository or in the fill tube. ### Claim 3 (depends on 2) The device of claim 2 wherein the fill tube is adapted for transport of a medicinal source and the delivery vessel is configured for intravenous (IV) delivery to a patient. ### Claim 4 (depends on 3) The device of claim 3 wherein the ingress port and delivery port are each defined by a fitting adapted to engage the fill vessel and the delivery vessel, respectively. ### Claim 5 (depends on 4) The device of claim 4 wherein each of the ingress port and the delivery port defines a fluidic disconnection point for encapsulating residual vessel volume for a unidirectional decoupling based on a medication flow direction. ### Claim 6 (depends on 2) The device of claim 2 wherein each of the ingress port and the delivery port are defined by a respective fitting for isolating the fluid volume while in transport prior to drippage or spillage, thereby encapsulating a residual volume. ### Claim 7 (depends on 6) The device of claim 6 wherein each of the respective fittings is configured for engaging a complementary fitting on the fill tube or delivery vessel. ### Claim 8 (depends on 2) The device of claim 2 wherein each valve of the plurality of valves further comprises a resilient isolating surface adapted to deformably seal the corresponding access port. ### Claim 9 (depends on 1) The device of claim 1 further comprising a repository vessel defined by each of the access ports, each repository vessel in fluidic communication with the medicinal repository, each of the ingress port and the delivery port adapted for fluidic communication with an external vessel, and each of the valves is configured for fluidic isolation to contain the fluid in the repository vessel or in the corresponding external vessel. ### Claim 10 (depends on 1) The device of claim 1 wherein: the ingress port is configured to receive the volume of fluid from a fill tube for transport into the medicinal repository; the delivery port is configured to receive the volume of fluid via a delivery vessel fluidically coupled to the medicinal repository for unidirectional transport of the fluid therefrom; and an intravenous transport vessel for patient delivery is connected downstream from the delivery port. ### Claim 11 (depends on 1) The device of claim 1 wherein each of the valves is responsive to engagement of a rigid protrusion with a resilient isolation surface, the resilient isolation surface adapted to seal against external flow of the fluid. ### Claim 12 A system of patient intravenous (IV) delivery of contact sensitive medication, comprising: an expandable surround around a medicinal repository, the medicinal repository adapted to store a volume of fluid for intravenous injection based on an air pressure in the expandable surround; and a plurality of valves including at least a safety valve and a delivery side fluid disconnect securing a corresponding plurality of access ports in fluidic communication with the medicinal repository for metered patient delivery of the fluid, the access ports including at least an ingress port and a delivery port; the delivery side fluid disconnect securing the corresponding delivery port providing fluidic communication from the medicinal repository to the patient; each valve of the plurality of valves providing a single point of fluidic disconnect and enforcement of unidirectional flow to encapsulate the fluid in the medicinal repository for patient delivery. ### Claim 13 (depends on 12) The system of claim 12 wherein each of the ingress port and the delivery port is adapted for fluidic communication with a fill tube or delivery vessel, and the safety valve is configured for fluidic isolation to contain the fluid in the medicinal repository or in the fill tube. ### Claim 14 (depends on 13) The system of claim 13 wherein the fill tube is adapted for transport of a medicinal source and the delivery vessel is configured for intravenous (IV) delivery to a patient.