Mechanical Injection
Mechanical Injection - Related Videos
04:46
The Quantification of Injectability by Mechanical Testing
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Cited by 16 •
2020
Presented here is a protocol for quantitatively evaluating the injectability of a material through a syringe-needle system using a standard mechanical testing rig.
03:22
Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
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Cited by 54 •
2018
This paper aims to describe the interfollicular autologous platelet-rich plasma injections (0.20 mL x cm2) in the scalp of 23 patients affected by androgenetic alopecia at a depth of 5 mm using a medical injector gun equipped with a 30 gauge needle, in three sessions.
12:45
Mechanical Stimulation of Chondrocyte-agarose Hydrogels
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Cited by 29 •
2012
The biosynthesis of cartilaginous extracellular matrix by chondrocytes can be affected by application of mechanical stimuli. This method describes the technique of applying dynamic compressive strains to chondrocytes encapsulated in 3D constructs and the evaluation of induced changes in chondrocyte metabolism.
10:28
An Injectable and Drug-loaded Supramolecular Hydrogel for Local Catheter Injection into the Pig Heart
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Cited by 21 •
2015
Supramolecular hydrogelators based on ureido-pyrimidinones allow full control over the macroscopic gel properties and the sol–gel switching behavior using pH. Here, we present a protocol for formulating and injecting such a supramolecular hydrogelator via a catheter delivery system for local delivery directly in relevant areas in the pig heart.
15:21
Microfabricated Platforms for Mechanically Dynamic Cell Culture
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Cited by 3 •
2010
In this protocol, we demonstrate the fabrication of a microactuator array of vertically displaced posts on which the technology is based, and how this base technology can be modified to conduct high-throughput mechanically dynamic cell culture in both two-dimensional and three-dimensional culture paradigms.
FAQs
Pressure from a syringe plunger or powered injector pushes the formulation through the needle’s narrow opening and into tissue. The applied force must support movement of the liquid or suspension without compromising delivery accuracy. Because pressure drives flow, device operation and needle selection influence how effectively the material reaches the intended location.
Needle gauge and injection rate affect how the formulation enters tissue and spreads after delivery. These variables can influence dispersion and discomfort, while also affecting the consistency of administration. Selecting a suitable combination helps clinicians balance delivery performance with patient tolerance and supports more reliable dosing during medical procedures.
Injection depth determines where the material is deposited, whereas volume affects the amount delivered and the extent of local dispersion. If these parameters do not match the intended tissue or treatment, material may spread differently than expected or dosing may become less precise. Considering both variables supports targeted administration and reduces unwanted leakage.
A syringe uses plunger movement to generate pressure, while an automated injector applies force through a powered device. Both approaches drive material through a needle, but the device choice can shape how delivery is performed and standardized. This distinction is relevant when clinicians seek suitable equipment for different formulations, procedures, or patient populations.
Equipment selection should account for the formulation, intended tissue, needle gauge, injection depth, rate, and volume. These factors jointly influence dispersion, discomfort, leakage, tissue injury, and dosing accuracy. Matching the syringe or automated injector to the procedure helps clinicians deliver treatment more reliably rather than treating the injection device as interchangeable across all clinical situations.
Clinical applications include vaccination, drug administration, local anesthesia, contrast-enhanced imaging, and targeted delivery procedures. The same underlying delivery approach therefore supports preventive care, treatment, pain control, diagnostic imaging, and location-specific administration. The required needle, depth, rate, and volume can vary according to the intended use and tissue target.
Clinicians can assess whether the intended dose was delivered accurately, whether the material dispersed appropriately, and whether discomfort, tissue injury, or leakage occurred. These outcomes reflect the interaction among device force, needle gauge, injection rate, depth, and volume. Evaluating them helps improve subsequent device selection and treatment delivery across different patient populations.