The sex pheromone of the leafminer Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) was deployed in a Florida citrus (Citrus spp.) grove by using a novel deployment device (IFM-413) containing SPLAT, a flowable formulation of an emulsified wax compound designed to provide slow release of semiochemicals. The device consisted of two disks connected by string. Each disk was loaded wit...

device is a widely used technique for the diagnosis of nonpalpable breast lesions discovered by mammography (1-3). An add-on device attached to a regular mammography unit can be used for a stereotactic breast biopsy. Its advantages are that it is less expensive than a prone table and extra space for the equipment is unnecessary (3). There is a paucity of reports on the effectiveness of the use ...

This paper investigates how parameter identification can improve the calibration of elastically averaged parallel manipulators. The method developed is applied to a needle manipulator for intra-Magnetic Resonance Imaging (MRI) prostate cancer treatment. The device uses MRI-compatible Dielectric Elastomer Actuators to precisely guide a needle during its insertion for taking biopsy or implanting ...

Traps made by rectangular pieces of 3 mm thick corrugated cardboard of four different sizes, 200 by 140 (A), 140 by 100 (B), 100 by 70 (C), and 200 by 40 mm (D), were evaluated as a sampling device for the chicken mite, Dermanyssus gallinae (De Geer). Mites were trapped during 2, 4, 6, 8, and 10 d, respectively, in a poultry house heavily infested with the parasite. Significantly greater number...

A simple device for making pressure microinjections into the brain, its application for delivery of a tracer substance, biotin dextran amine, and an example of the resulting axonal transport are described. The device is based on the use of a Luer tip Hamilton microliter syringe mated directly to the plastic hub of an injection needle assembly in which the metal needle has been replaced by a gla...

Steerability in percutaneous medical devices is highly desirable, enabling a needle or needle-like instrument to avoid sensitive structures (e.g. nerves or blood vessels), access obstructed anatomical targets, and compensate for the inevitable errors induced by registration accuracy thresholds and tissue deformation during insertion. Thus, mechanisms for needle steering have been of great inter...

A reusable, arrayed interconnect capable of providing multiple simultaneous connections to and from a microfluidic device in an in-plane manner without the use of adhesives is presented. This method uses a ‘pin-and-socket’ design in which an SU-8 anchor houses multiple polydimethysiloxane septa (the socket) that each receive a syringe needle (the pin). A needle array containing multiple commerc...

Background: Robotic needle insertion in biological tissues has been known as one the most applicable procedures in sampling, robotic injection and different medical therapies and operations.Objective: In this paper, we would like to investigate the effects of angular velocity in soft tissue insertion procedure by considering force-displacement diagram. Non-homogenous camel liver can be exploite...

The large photocurrent hysteresis observed in many organometal trihalide perovskite solar cells has become a major hindrance impairing the ultimate performance and stability of these devices, while its origin was unknown. Here we demonstrate the trap states on the surface and grain boundaries of the perovskite materials to be the origin of photocurrent hysteresis and that the fullerene layers d...

rthrocentesis of the temporomandibular joint (TMJ) was rst described by Nitzan et al.1 and is an accepted treatment or various disorders of the TMJ. Their technique includes nsertion of two needles along the canthal-tragal line, the first f which is placed into the upper joint compartment of the MJ, and the second anterior to the first to allow effective avage of the joint (Fig. 1). However, in...