<i>In vivo</i>measurement of the pressure signal in the intervertebral disc of an anesthetized sheep

Roriz, Paulo; Ferreira, João José Pinto; Potes, J.; Oliveira, Maria Teresa; Frazão, Orlando; Santos, J. L.; Simões, José Augusto

doi:10.1117/1.jbo.19.3.037006

Cited by 12 publications

(5 citation statements)

References 31 publications

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“…The sensor was characterized for hydrostatic pressure using a purpose‐built pressure device that was described elsewhere . Six pressure cycles from 0 to 337.5 mmHg with a pressure step of ∼37.5 mmHg were performed.These presures are in the range of several physiological pressures, such as blood pressure, intracranial, and intra‐articular pressures.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

A Fabry–Perot sensor prototype for low‐pressure measurements

Roriz

Ferreira

Schuster

et al. 2014

Micro & Optical Tech Letters

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

A Fabry–Perot sensor prototype for low‐pressure measurements

Roriz

Ferreira

Schuster

et al. 2014

Micro & Optical Tech Letters

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“…The system operates on the principle that during fusion, the modulus of elasticity in the fused portion of the spine increases, resulting in a decrease in strain on the fixation device. Several studies have explored disc pressure measurements using implantable sensors, primarily in animal studies (Pressure sensor die was selected, SM5112, Silicon Microstructures Inc., 2.0 mm × 2.0 mm×0.9 mm) ( Glos et al, 2010 ; Roriz et al, 2014 ). Recent advances in implantable sensors for spinal applications are detailed in Table 4 , with representative studies highlighted in Figure 3 .…”

Section: Implantable Sensors For the Musculoskeletal Systemmentioning

confidence: 99%

The application of impantable sensors in the musculoskeletal system: a review

Wang,

Chu,

Song

et al. 2024

Front. Bioeng. Biotechnol.

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As the population ages and the incidence of traumatic events rises, there is a growing trend toward the implantation of devices to replace damaged or degenerated tissues in the body. In orthopedic applications, some implants are equipped with sensors to measure internal data and monitor the status of the implant. In recent years, several multi-functional implants have been developed that the clinician can externally control using a smart device. Experts anticipate that these versatile implants could pave the way for the next-generation of technological advancements. This paper provides an introduction to implantable sensors and is structured into three parts. The first section categorizes existing implantable sensors based on their working principles and provides detailed illustrations with examples. The second section introduces the most common materials used in implantable sensors, divided into rigid and flexible materials according to their properties. The third section is the focal point of this article, with implantable orthopedic sensors being classified as joint, spine, or fracture, based on different practical scenarios. The aim of this review is to introduce various implantable orthopedic sensors, compare their different characteristics, and outline the future direction of their development and application.

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“…The intra-muscular pressure (IMP) in rats was measured in the legs of four female and three male humans [266,267]. Roritz et al [268] measured the pressure in the intervertebral disc pressure (IDP) of an anaesthetized sheep. The ex-vivo measurements of heart rate were recorded using optical fiber macro bending sensors on foot artery or mounted around the arm.…”

Section: Pressure Sensormentioning

confidence: 99%