Obesity
Conditions
Interventions
Experimental group:1. The operator wears smart glasses (AR head-mounted display), which are connected to a portable ultrasound device via wireless technology, projecting real-time ultrasound images in
2. The operator performs venous identification and localization by observing the images in the smart glasses, completing peripheral venous puncture and catheter placement under visual guidance
3. This process can reduce the operator's frequent head-down movements to check the ultrasound screen during the operation, improving the coherence and efficiency of the procedure
4. During the intervention, the time spent by the operator observing images, the time spent observing the patient, the number of punctures, and the total time taken are recorded.
Control Group:1. The operator uses the same model of portable wireless ultrasound equipment, but the images are displayed on a conventional external display screen
2. The operator needs to frequently switch their gaze between the operating area and the display screen to complete peripheral venous puncture under ultrasound guidance
3. The puncture process and recorded indicators in this group are consistent with the experimental group to ensure that the intervention method is the only variable.
Sponsors
The Second Affiliated Hospital of Anhui Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age >= 18 years old; 2. BMI > 30 kg/m^2 (Obesity); 3. ASA classification II~III; 4. Scheduled for elective surgery under general anesthesia, requiring peripheral intravenous puncture; 5. The subject voluntarily participates in the study and signs the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Those who refuse to participate in this study; 2. Individuals with clotting function abnormalities; 3. Those with mental disorders who cannot cooperate; 4. Individuals allergic to ultrasound coupling agents.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| First-attempt success rate of peripheral venous cannulation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Time to first-attempt success (seconds):; | — |
Countries
China
Contacts
Public ContactChen Hong
The Second Affiliated Hospital of Anhui Medical University
Outcome results
None listed