Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Blood'up Device Versus Manual Palpation for Arterial Puncture in Healthy Volunteers: A Pilot Randomized Study Under Normal and Simulated Hypotension

10 augustus 2026 bijgewerkt door: Centre Hospitalier Régional d'Orléans

Arterial puncture is a common procedure in the management of hospitalized patients. It is most often performed at the level of the radial artery and allows arterial blood gas analysis.

The success rate of arterial puncture varies widely in the literature. This procedure is moderately painful and may cause significant discomfort, particularly in cases of repeated attempts. First-attempt success is therefore important to reduce both pain and the risk of local complications associated with multiple punctures.

In routine practice, arterial puncture is performed using manual palpation of the radial artery, typically by a trained nurse. In case of failure, a physician may attempt the procedure, often using ultrasound guidance. However, ultrasound is not routinely used and requires specific training and organizational protocols for nurse use.

In hypotensive conditions, such as shock, the radial pulse may become difficult to palpate, making arterial puncture more challenging when using conventional techniques.

The Blood'up device (Arterya, Hérouville, France) is a non-invasive device currently under development that assists in arterial localization. It is applied to the wrist and projects a light signal indicating the position of the artery. This localization is based on ultrasound technology using piezoelectric sensors integrated into the device.

The aim of this study is to evaluate the effectiveness of the Blood'up device for radial artery localization in healthy volunteers, both under physiological conditions (normal blood pressure) and under simulated hypotensive conditions.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Studietype

Ingrijpend

Inschrijving (Geschat)

32

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

      • Orléans, Frankrijk, 45067
        • Chu Orleans
        • Contact:
          • Mai-Anh NAY, MD
        • Hoofdonderzoeker:
          • May Anh NAY, MD

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Ja

Beschrijving

Inclusion Criteria:

  • Participant who has agreed to take part in the study
  • No history of cardiovascular disease and a positive Allen test (the Allen test confirms the presence of collateral circulation between the radial and ulnar arteries)
  • Age ≥ 18 years
  • Body mass index (BMI) < 30 kg/m²

Exclusion Criteria:

  • Raynaud's syndrome/disease
  • Damaged or injured skin at the puncture site or at the Blood'Up device contact area
  • Upper limb amputation
  • Contraindication to arterial puncture in one or both upper limbs (e.g., skin lesion, lymph node dissection, etc.)
  • Contraindication to extrinsic arterial compression
  • Therapeutic anticoagulation
  • Known allergy to thermoplastic (ABS)
  • Known allergy to EMLA patch (lidocaine or prilocaine)
  • Pregnant or breastfeeding women

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: Arterial puncture using manual palpation

The traditional method for performing radial arterial puncture by manual palpation is as follows:

  • Identification of the radial artery pulsation by palpation by the nurse
  • Puncture performed at the location where the pulse amplitude is perceived as strongest.
Each healthy volunteer will undergo arterial blood gas sampling on both wrists using each randomized technique (manual palpation versus the Blood'Up device).

Only for the second cohort with simulated hypotension, which will include 16 healthy volunteers:

Hypotension will be simulated by extrinsic compression using a blood pressure cuff adapted to the volunteer's arm circumference. The (manual) blood pressure cuff will be inflated and maintained to achieve a mean arterial pressure of 60 mmHg (with hypotension defined as a mean arterial pressure below 65 mmHg). Blood pressure will be measured using a non-invasive hemodynamic monitoring device (ClearSight®, Edwards Lifesciences, Mississauga, Canada).

Experimenteel: Arterial puncture using Blood'Up device
Blood'Up is a portable, reusable, non-sterile Class I medical device that uses ultrasound to detect the radial artery beneath the skin. It projects two puncture points connected by a line onto the skin surface directly above the artery. Unlike ultrasound-guided or palpation-based techniques, the device allows the healthcare professional to keep both hands free, enabling the puncture to be performed under optimal conditions.
Each healthy volunteer will undergo arterial blood gas sampling on both wrists using each randomized technique (manual palpation versus the Blood'Up device).

Only for the second cohort with simulated hypotension, which will include 16 healthy volunteers:

Hypotension will be simulated by extrinsic compression using a blood pressure cuff adapted to the volunteer's arm circumference. The (manual) blood pressure cuff will be inflated and maintained to achieve a mean arterial pressure of 60 mmHg (with hypotension defined as a mean arterial pressure below 65 mmHg). Blood pressure will be measured using a non-invasive hemodynamic monitoring device (ClearSight®, Edwards Lifesciences, Mississauga, Canada).

Blood'Up will be used to detect the radial artery beneath the skin.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Success rate of radial arterial puncture performed with and without the Blood'Up device in healthy volunteers with no cardiovascular history
Tijdsspanne: 5 minutes

Success is defined as successful puncture of the radial artery with confirmation of the arterial nature of the sample by blood gas analysis. Only one puncture (defined as a single skin puncture) will be performed on each wrist.

If the needle is withdrawn without obtaining blood return, this will be considered a failed arterial puncture. Similarly, the absence of blood return within one minute after skin puncture will also be considered a failure.

5 minutes

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Procedure time: from device placement to blood return in the syringe when using the Blood'Up device; and from the start of palpation to blood return in the syringe for manual palpation.
Tijdsspanne: 30 minutes

Procedure time is defined as the time from the start of device placement to the onset of blood return in the arterial syringe (expected volume: 1 mL).

For the Blood'Up device, the start is defined as the moment the device is placed on the volunteer's skin.

For manual palpation, the start of palpation defines the start of the procedure.

In both cases (Blood'Up and manual palpation), the maximum allowed procedure time is 1 minute. Similarly, the absence of blood return within one minute after skin puncture will be considered a failure.

30 minutes
Pain with and without the Blood'Up device
Tijdsspanne: 30 minutes
Pain will be assessed immediately after each puncture by asking the participant to rate the maximum pain experienced during the procedure using a visual analog scale (VAS) ranging from 0 (no pain) to 10 (worst imaginable pain).
30 minutes
Number of needle redirections with and without the Blood'Up device.
Tijdsspanne: 30 minutes
Number of needle redirections during each puncture, defined as any change in needle angulation (self-reported by the nurse performing the procedure). A puncture is defined as a single skin breach by the needle; as long as the needle is not completely withdrawn from the skin, all manipulations are considered part of the same puncture, regardless of the number of redirections.
30 minutes
Immediate complications with and without the Blood'Up device.
Tijdsspanne: 30 minutes
Complications related to arterial puncture occurring within 5 minutes after the procedure: hematoma at the puncture site, suspected nerve injury (paresthesia), or vasovagal response (pallor, sweating, bradycardia, syncope).
30 minutes

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 september 2026

Primaire voltooiing (Geschat)

1 september 2027

Studie voltooiing (Geschat)

1 september 2027

Studieregistratiedata

Eerst ingediend

26 juni 2026

Eerst ingediend dat voldeed aan de QC-criteria

10 augustus 2026

Eerst geplaatst (Werkelijk)

14 augustus 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

14 augustus 2026

Laatste update ingediend die voldeed aan QC-criteria

10 augustus 2026

Laatst geverifieerd

1 augustus 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • CHUO-2025-04

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .