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NZ777854B2 - Catheter flush device, system, and methods - Google Patents
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NZ777854B2 - Catheter flush device, system, and methods - Google Patents

Catheter flush device, system, and methods

Info

Publication number
NZ777854B2
NZ777854B2 NZ777854A NZ77785420A NZ777854B2 NZ 777854 B2 NZ777854 B2 NZ 777854B2 NZ 777854 A NZ777854 A NZ 777854A NZ 77785420 A NZ77785420 A NZ 77785420A NZ 777854 B2 NZ777854 B2 NZ 777854B2
Authority
NZ
New Zealand
Prior art keywords
conduit
housing
medical device
catheter
fluid
Prior art date
Application number
NZ777854A
Other versions
NZ777854A (en
Inventor
S Ray Isaacson
Original Assignee
Becton Dickinson And Company
Filing date
Publication date
Priority claimed from US16/741,998 external-priority patent/US12427295B2/en
Application filed by Becton Dickinson And Company filed Critical Becton Dickinson And Company
Publication of NZ777854A publication Critical patent/NZ777854A/en
Publication of NZ777854B2 publication Critical patent/NZ777854B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M2005/1401—Functional features
    • A61M2005/1403—Flushing or purging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M2039/0009—Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation
    • A61M2039/0018—Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation designed for flushing a line, e.g. by a by-pass
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0258—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for vascular access, e.g. blood stream access
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/027—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body having a particular valve, seal or septum
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1072—Tube connectors; Tube couplings with a septum present in the connector
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A61M2039/2433—Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/088—Supports for equipment on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/04—Access sites having pierceable self-sealing members
    • A61M39/045—Access sites having pierceable self-sealing members pre-slit to be pierced by blunt instrument
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/20—Closure caps or plugs for connectors or open ends of tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies

Abstract

Infusion therapy, a common healthcare procedure, may be facilitated by a vascular access device. A common type of vascular access device is a catheter, such as, for example, a peripheral intravenous catheter (PIVC) or a peripherally inserted central catheter (PICC). When a catheter remains in the vasculature of the patient for a prolonged period of time, the catheter may be more susceptible to an occlusion or blockage by debris (e.g., fibrin or platelet clots). A catheter occlusion can lead to catheter infection, pulmonary embolism, post-thrombotic syndrome, and other negative health outcomes. When an occlusion in a catheter occurs, the catheter may be removed and/or replaced, which may result in an additional needle stick, pain to the patient, and higher material costs. Current occlusion prevention measures include manually flushing the catheter, but adherence to flushing protocols may vary across clinicians. In some instances, a thrombolytic agent may be used to break up the occlusion in the catheter. However, the thrombolytic agent is often expensive, and installation of the thrombolytic agent may interrupt infusion therapy through the catheter. Further, risk of occlusion of the catheter may lead to increased manual flushing, which may result in an increased risk of infection. A flush device may be used to flush a catheter system. The flush device may include a housing, a proximal connector coupled to the housing, and a distal connector coupled to the housing. The flush device may include a first conduit disposed within the housing and extending between the proximal connector and the distal connector. The flush device may include a second conduit disposed within the housing and in fluid communication with the first conduit. The second conduit comprises a first end and a second end. The flush device may include a fluid reservoir coupled to the second conduit, which may be disposed within the housing of the flush device. The second conduit extends between the first conduit and the reservoir. The first end of the second conduit is proximate the first conduit. The second end of the second conduit is proximate the fluid reservoir. The flush device may include a pump disposed within the housing and that pumps fluid from the fluid reservoir, through the second conduit, and into the first conduit. A switch disposed on the housing for deactivating the pump while blood is drawn through the first conduit and for reactivating the pump after blood is drawn through the first conduit to resume the continuous flushing of the indwelling catheter. The device may include a one-way valve, which may prevent fluid from flowing beyond the one-way valve toward the fluid reservoir.

Claims (24)

1. A medical device, comprising: a housing; a proximal connector coupled to the housing; a distal connector coupled to the housing; a first conduit disposed within the housing and extending between the proximal connector and the distal connector; a second conduit disposed within the housing and in fluid communication with the first conduit, wherein the second conduit comprises a first end and a second end; a fluid reservoir coupled to the second conduit and disposed within the housing, wherein the second conduit extends between the first conduit and the reservoir, wherein the first end of the second conduit is proximate the first conduit, wherein the second end of the second conduit is proximate the fluid reservoir; a pump disposed within the housing, wherein the pump is configured to pump fluid from the fluid reservoir through the second conduit, and into the first conduit; and a one-way valve disposed within the second conduit, wherein the one-way valve is configured to prevent fluid from flowing beyond the one-way valve toward the fluid reservoir.
2. The medical device of claim 1, wherein the distal connector is configured to couple to a vascular access device, wherein the vascular access device comprises a peripheral intravenous catheter.
3. The medical device of claim 1, wherein the proximal connector comprises a needleless connector.
4. The medical device of any one of claims 1 to 3, wherein the pump provides a fluid flow rate of 0.2 mL/hr.
5. The medical device of any one of claims 1 to 3, wherein the pump provides a fluid flow rate greater than 0.2 mL/hr.
6. The medical device of any one of claims 1 to 5, wherein the medical device further comprises a clothing article configured to be worn by a patient, wherein the housing is coupled to the clothing article.
7. The medical device of claim 6, wherein the clothing article comprises an arm band.
8. The medical device of any one of claims 1 to 7, wherein the second conduit intersects the first conduit.
9. The medical device of any one of claims 1 to 8 substantially as herein described with reference to the accompanying figures.
10. A medical device for drawing blood through an indwelling catheter and for providing continuous flushing of the indwelling catheter, comprising: a housing forming a proximal connector and a distal connector, wherein the distal connector comprises a luer adapter by which an indwelling catheter is coupled to the housing; a first conduit disposed within the housing and extending from the proximal connector to the distal connector, the first conduit forming a fluid path for drawing blood via the indwelling catheter using a blood draw device connected to the proximal connector; a replaceable fluid reservoir disposed within the housing, the replaceable fluid reservoir containing a flushing fluid; a second conduit disposed within the housing and extending between the fluid reservoir and the first conduit, the second conduit forming a fluid path for injecting the flushing fluid into the first conduit and through the distal connector to thereby flush the indwelling catheter; a pump disposed within the housing, wherein the pump is configured to continuously pump the flushing fluid from the fluid reservoir through the second conduit, and into the first conduit to thereby continuously flush the indwelling catheter to prevent occlusion of the indwelling catheter; a switch disposed on the housing for deactivating the pump while blood is drawn through the first conduit and for reactivating the pump after blood is drawn through the first conduit to resume the continuous flushing of the indwelling catheter; and a one-way valve disposed within the second conduit, wherein the one-way valve is configured to prevent blood from flowing beyond the one-way valve toward the fluid reservoir while blood is drawn through the first conduit.
11. The medical device of claim 10, wherein the proximal connector comprises a needleless connector that includes a septum having a slit, and wherein the blood draw device inserts through the slit when coupled to the proximal connector to form the fluid path for drawing blood.
12. The medical device of claim 10, wherein the pump provides a fluid flow rate of 0.2 mL/hr.
13. The medical device of claim 12, wherein the replaceable fluid reservoir contains 5 mL of flushing fluid such that the medical device provides continuous flushing of the indwelling catheter for an entire day without replacing the replaceable fluid reservoir.
14. The medical device of claim 10, wherein the medical device further comprises a clothing article configured to be worn by a patient, wherein the housing is coupled to the clothing article.
15. The medical device of claim 14, wherein the clothing article comprises an arm band.
16. The medical device of claim 15, wherein the first conduit comprises a tubing.
17. The medical device of claim 10, wherein the proximal connector is integrated into a first side of the housing and the distal connector is integrated into a second side of the housing opposite the first side.
18. The medical device of claim 10, wherein the second conduit comprises a tubing.
19. The medical device of claim 18, wherein the pump comprises a peristaltic medical infusion pump having a plurality of members that sequentially push on the tubing.
20. The medical device of claim 10, wherein the replaceable fluid reservoir comprises a syringe.
21. The medical device of claim 10, wherein the replaceable fluid reservoir is a vial.
22. The medical device of claim 10 further comprising: an indicator integrated into the housing, the indicator identifying a volume of flushing fluid remaining in the replaceable fluid reservoir.
23. The medical device of claim 10, wherein the pump is configured to continuously pump the flushing fluid from the fluid reservoir through the second conduit by periodically pumping a specified amount of the flushing fluid from the fluid reservoir, the specified amount being configured to prevent occlusion of the indwelling catheter.
24. The medical device of any one of claims 10 to 23, substantially as herein described with reference to the accompanying figures. 12 ,# Ik 1===^ sjsS* s3 feHHJ] g-ggji OOOOOOOOO j "'sj" .r-nr 'K +-> I idffLS111 lx‘46 ilF^j tv:. x-45 li
NZ777854A 2020-01-16 Catheter flush device, system, and methods NZ777854B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962799211P 2019-01-31 2019-01-31
US16/741,998 US12427295B2 (en) 2019-01-31 2020-01-14 Catheter flush device, system, and methods
PCT/US2020/013909 WO2020159718A1 (en) 2019-01-31 2020-01-16 Catheter flush device, system, and methods

Publications (2)

Publication Number Publication Date
NZ777854A NZ777854A (en) 2025-09-26
NZ777854B2 true NZ777854B2 (en) 2026-01-06

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