Design of a Novel, Adjustable Flow Rate, Reusable, Electricity-Free, Low-Cost Syringe Infusion Pump

Guelig, Dylan; Bauer, James D.; Wollen, Alec; Schiller, Chelsea; Sherman-Konkle, Jill; Roche, Anthony; Weyrauch, Karl; Eisenstein, Mike

doi:10.1115/1.4037935

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…It is administered as a single dose into the surgical wound for postoperative analgesia as it requires no catheter, pump, or additional device. It can decrease pain and opioid consumption during the perioperative period [5].…”

Section: Introductionmentioning

confidence: 99%

Erector spinae plane block combined with general anaesthesia versus conventional general anaesthesia in lumbar spine surgery

Siam

Aliaa

El-Medany

et al. 2020

Egyptian Journal of Anaesthesia

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Background: Perioperative pain management should be planned preoperatively and based on usage of pharmacological and non-pharmacological modalities as a multimodal analgesia (MMA). Regional anaesthesia has superior advantages than opioid-based anaesthesia and is one of the cornerstones of the Enhanced Recovery After Surgery (ERAS) especially in Patients undergoing spine surgery having already troublesome chronic pain and analgesic use. The present study was carried out to compare erector spinae plane block (ESP) with general anaesthesia versus conventional general anaesthesia in lumbar spine surgery. Materials and Methods: This study was done on thirty adult patients of both sexes scheduled for elective lumbar spine surgery under general anaesthesia. They were randomly categorized into two equal groups (fifteen patients each); ESP was used for group I, and MMA was used for group II. Data was collected on anaesthetic requirements based on entropy monitoring and haemodynamic parameters, stress response measurement based on serum cortisol and blood glucose levels, controlled hypotensive anaesthesia; various drugs required and doses given, intraoperative and postoperative analgesia, postanaesthesia care unit data concerning recovery. Results: The group I (ESP) had statistically significant decrease of the response and the response-state entropy difference levels when compared to the group II (MMA) after stimulus and during the 1st time interval. The incidence of hemodynamic changes was significantly higher in the group I (ESP) than group II (MMA). Only the serum cortisol but not the blood glucose levels had statistically significant lower mean values 4 h postoperatively in group I (ESP) compared to group II (MMA). The patients received ESP had statistically significant lower mean expired isoflurane concentration, decreased emergence time, intraoperative fentanyl consumption and total dose of pethidine given up to 8 hrpostoperatively. Conclusions: Erector spinae plane block (ESP) can be considered safe and effective perioperative analgesic modality for lumbar spine simple decompression surgery. It helps in controlled hypotensive anaesthetic technique and decreases inhalational anaesthetics and intraoperative opioid requirements.

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Section: Introductionmentioning

confidence: 99%

Erector spinae plane block combined with general anaesthesia versus conventional general anaesthesia in lumbar spine surgery

Siam

Aliaa

El-Medany

et al. 2020

Egyptian Journal of Anaesthesia

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“…The combined effects of the input air pressure to the piston and the resistance provided by the movement of hydraulic fluid through the flow-restricting tubing controls the rate at which the piston moves and hence the flow rate of the fluid delivered by the syringe. 12 The user controls the flow rate by adjusting the precision regulator with the flow rate adjustment knob. The air pressure in the tank and the air pressure applied to the piston are read from two dial gauges on the front of the device.…”

Section: User Assessment: Methods and Materialsmentioning

confidence: 99%

User-Centered Design: Developing the RELI Delivery System – a Low-Cost, Non-Electric, Pneumatic Infusion Pump

Abu-Haydar¹,

Katuntu²,

Bauer³

et al. 2021

MDER

Self Cite

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Purpose Infusion pumps are the preferred method for intravenous delivery of drugs and fluids, and an essential tool in health facilities. Their high cost, complexity and reliance on electricity pose serious challenges to wide-spread use, availability and access in low- and middle-income countries. PATH developed the RELI Delivery System (RELI), a low cost, non-electric infusion pump to address these challenges. Input collected from fifty-nine newborn and maternal care providers and from seven national level decision makers in Uganda was used to guide product development, further informing product design requirements, and optimal design features to best serve their needs. Methods A formative evaluation following a mixed methods approach including focus group discussions (FGDs), stakeholder interviews, and observations was used to collect data from end users. Results Stakeholders provided critical input on the RELI prototype design features, safety criteria, and contexts of use of infusion pumps, as well as recommendations for design refinements. Infusion systems are greatly needed but not readily available and their use is limited to well-resourced higher level facilities, even though the need is high in non-tertiary care hospital where patient volume is high, resources are scarce, power is inconsistent, and facilities are understaffed and overcrowded. Users expressed a need for an affordable and simple device with an intuitive user interface, clear instructions for use, and basic safety features. Conclusion The study provided important guidance for further design refinements based on input from respondents and confirmed the need for robust, affordable, infusion pumps that meet the requirements for use in low-resource settings.

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“…Even though this work demonstrated a higher precision, the required flow sensor added further complexity and cost to the overall system that adversely affect the targeted low-cost goal. Guelig et al presented a pressure driven syringe pump that did not require electricity or electronic control units to operate [16]. A pressure regulating valve and constant source of pressurized air were used to move the syringe plunger.…”

Section: Intorductionmentioning

confidence: 99%

A Simple Approach for Controlling an Open-Source Syringe Pump

Akkoyun¹,

Özçelik²

2020

European Mechanical Science

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Precise control of fluid flows in microfluidics is crucial for various applications in lab-on-a-chip and pointof-care diagnostics. Standard bench-top equipment for providing this capability are syringe pumps. However, high cost of these systems limit their availability in low resourced laboratories. There are various open-sourced alternative syringe pump systems that can be fabricated and assembled using 3D printing, but they lack versatile control and flow rate characterization that are required for microfluidic applications. We report a simple and cost-effective approach to control an open-source multi-channel syringe pump. Simultaneous and adjustable flow control, and detailed characterization of the volume flow rates for different syringe volumes are also demonstrated.

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Design of a Novel, Adjustable Flow Rate, Reusable, Electricity-Free, Low-Cost Syringe Infusion Pump

Cited by 10 publications

References 11 publications

Erector spinae plane block combined with general anaesthesia versus conventional general anaesthesia in lumbar spine surgery

Erector spinae plane block combined with general anaesthesia versus conventional general anaesthesia in lumbar spine surgery

User-Centered Design: Developing the RELI Delivery System – a Low-Cost, Non-Electric, Pneumatic Infusion Pump

A Simple Approach for Controlling an Open-Source Syringe Pump

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