The large animal blood pressure monitor adopts the principle of Doppler technology and is used for non-invasive blood pressure measurement of various animals, such as beagle dogs, rabbits, monkeys, pigs, etc.

The Doppler system uses a Doppler ultrasound probe to collect blood flow Doppler frequency shift signals at the active pulse points of the limbs, and amplifies the signal voltage. On the one hand, it is directly input into the speaker and converted into an audio signal to obtain Doppler sound, while observing the blood pressure measured by the sphygmomanometer.

Model: 811-B

Convenient operation of Doppler blood pressure measurement:

·During the measurement process, the sensor is placed at the artery (the limbs or tail of the animal), and the ultrasound crystal inside the sensor can propagate the pulse sound backwards to the amplifier, which converts it into an audio signal. At the same time, the blood pressure value measured by the sphygmomanometer is observed;

·The pressure cuff fixed near the sensor is inflated until the pulse sound disappears, and the gas inside the cuff is slowly released until the pulse sound is felt again. At this time, the value displayed on the pressure gauge is the systolic blood pressure;

·Continue to slowly release the air inside the cuff, and when the sound of arterial blood flow suddenly increases, the reading of the pressure gauge is the diastolic pressure;

·8 MHz to 9.7 MHz frequency probes are available

·Equipped with blood pressure cuffs of various sizes

·Upgradeable automatic shutdown function

Common measurement steps:

1. Choose a quiet room and let the animal adapt for a few minutes. The measurement will be carried out by the animal owner or caretaker, as measuring blood pressure is not painful and only requires a suitable Baoding without anesthesia.

2. Connect multiple Doppler measurement systems, connect the Doppler probe to the host, and use headphones when there is external noise interference or timid animals. (With a standard 3.5mm headphone adapter, it can be connected to any regular headphone)

3. Shave off the hair on the palmar side of the small animal's limbs to expose the palmar common artery area. Many animals are uncomfortable with shaving, so it is best to shave as quickly as possible and wait for them to calm down before taking measurements.

4. Select the appropriate cuff (refer to the RANGE arrow on the cuff for cuff selection), connect the cuff to the pressure gauge (including inflation device), and check the connection and cuff for air leakage. Wrap the cuff around the limb, being careful not to tighten or loosen it too tightly. Apply a uniform layer of ultrasonic coupling agent on the pre shaved palm side. Then squeeze some coupling agent onto the probe.

5. Turn on the power of the host, place the probe on the shaved area on the palm side (different from clinical practice, the probe is not placed inside the cuff), fix the probe with your thumb, and gently slide to find the sound of arterial blood flow. Secure the probe with one thumb of the left hand (do not press the probe too tightly), and start applying pressure to the cuff with the other hand. When no more sound is heard, apply an additional 30mmHg pressure. Then slowly release the air, causing the pressure gauge pointer to slowly descend. Pay attention and when the sound of arterial blood flow appears again, the reading of the pressure gauge pointer is the animal's systolic pressure. When measuring diastolic blood pressure with Doppler, slowly release the air inside the cuff after measuring systolic blood pressure, listen carefully, and when the sound of arterial blood flow suddenly increases, the reading of the pressure gauge is the diastolic blood pressure. But this change is extremely subtle, making it difficult for small dogs and cats to distinguish. The measured values have a large deviation, so measuring systolic blood pressure is a good choice when using Doppler to measure blood pressure.

reference:

1 Shakir S, Spencer A B, Kozak G M, et al. Laparoscopically assisted DIEP flap harvest minimizes fascial incision in autologous breast reconstruction[J]. Plastic and reconstructive surgery, 2020, 146(3): 265e-275e.
2 Bouzouraa T, Rannou B, Cappelle J, et al. Formula for the estimation of urine osmolality in healthy cats[J]. Research in Veterinary Science, 2021, 135: 121-126.
3 Bošnjak M, Kržan M, Tratar U L, et al. Pharmacokinetics of carprofen in anaesthetized pigs: a preliminary study[J]. Veterinary anaesthesia and analgesia, 2021, 48(1): 35-41.
4 Meurs K M, Stern J A, Atkins C E, et al. Angiotensin-converting enzyme activity and inhibition in dogs with cardiac disease and an angiotensin-converting enzyme polymorphism[J]. Journal of the Renin-Angiotensin-Aldosterone System, 2017, 18(4): 1470320317737184.
5 Hellman Y, Malik A S, Lane K A, et al. Pulse oximeter derived blood pressure measurement in patients with a continuous flow left ventricular assist device[J]. Artificial Organs, 2017, 41(5): 424-430.
6 Kushnir Y, Toledano N, Cohen L, et al. Intratesticular and incisional line infiltration with ropivacaine for castration in medetomidine–butorphanol–midazolam sedated dogs[J]. Veterinary anaesthesia and analgesia, 2017, 44(2): 346-355.
7 Adami C, Spadavecchia C, Angeli G, et al. Alfaxalone anesthesia by immersion in oriental fire‐bellied toads (Bombina orientalis)[J]. Veterinary anaesthesia and analgesia, 2015, 42(5): 547-551.
8 Gozalo-Marcilla M, Luna S P L, Gasthuys F, et al. Clinical applicability of detomidine and methadone constant rate infusions for surgery in standing horses[J]. Veterinary anaesthesia and analgesia, 2019, 46(3): 325-334.

：，

：

yuyanbio

： yuyanbio