Precision micromotor for surgery

Polla, Dennis L.; Erdman, Arthur G.; Peichel, David; Rizq, Raed N.; Gao, Yuzhen; Markus, D.

doi:10.1109/mmb.2000.893766

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…MEMS devices are small in size and can be batch fabricated at low cost, thereby having a competitive advantage over other devices. One of the fastest growth areas is incorporating MEMS devices on surgical tools which facilitate the surgeon by providing realtime force feedback, measuring tissue density and temperature, and providing a more precise method for tissue cutting and extraction and thus improving surgical outcomes [1][2][3][4][5][6][7]. To use the MEMS devices for surgical and bio-medical applications, there are fabrication challenges apart from integrating it with electronics, signal processing, calibration and device packaging [4,5].…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of a flexible MEMS-based electro-mechanical sensor array for breast cancer diagnosis

Pandya

Park

Desai

2015

J. Micromech. Microeng.

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The use of flexible micro-electro-mechanical systems (MEMS) based device provides a unique opportunity in bio-medical robotics such as characterization of normal and malignant tissues. This paper reports on design and development of a flexible MEMS-based sensor array integrating mechanical and electrical sensors on the same platform to enable the study of the change in electro-mechanical properties of the benign and cancerous breast tissues. In this work, we present the analysis for the electrical characterization of the tissue specimens and also demonstrate the feasibility of using the sensor for mechanical characterization of the tissue specimens. Eight strain gauges acting as mechanical sensors were fabricated using poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) conducting polymer on poly(dimethylsiloxane) (PDMS) as the substrate material. Eight electrical sensors were fabricated using SU-8 pillars on gold (Au) pads which were patterned on the strain gauges separated by a thin insulator (SiO2 1.0μm). These pillars were coated with gold to make it conducting. The electromechanical sensors are integrated on the same substrate. The sensor array covers 180μm × 180μm area and the size of the complete device is 20mm in diameter. The diameter of each breast tissue core used in the present study was 1mm and the thickness was 8μm. The region of interest was 200μm × 200μm. Microindentation technique was used to characterize the mechanical properties of the breast tissues. The sensor is integrated with conducting SU-8 pillars to study the electrical property of the tissue. Through electro-mechanical characterization studies using this MEMS-based sensor, we were able to measure the accuracy of the fabricated device and ascertain the difference between benign and cancer breast tissue specimens.

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Section: Introductionmentioning

confidence: 99%

Design and fabrication of a flexible MEMS-based electro-mechanical sensor array for breast cancer diagnosis

Pandya

Park

Desai

2015

J. Micromech. Microeng.

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“…This microactuator will act as the secondary drives in HDD by reducing the skew angle during the disk operation [6]. Furthermore, the microactuator also can be used in the surgery in medical field [16]. The microactuator is using in the micro-mirror devices of the laser phononicrosurgery which acts as the manipulator of the laser source.…”

Section: Development Of Micro Electro Mechanical Systemmentioning

confidence: 99%

Force Characterization and Optimization of the Bottom-Driven Type and Side-Driven Type Rotary Motion Electrostatic Actuator using FEM

2019

IJITEE

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Three types of rotary motion electrostatic actuator were designed and analyzed using Finite Element Method (FEM) analysis. This paper will discuss the comparisons and detailed thrust force analysis of three types of the electrostatic actuator designs which are side-driven rotary electrostatic actuators, bottom-driven rotary electrostatic actuator (linear), and bottomdriven rotary electrostatic actuator (skewed). There are several similar parameters will be constant for the three types of rotary motion electrostatic actuator such as the number of pole of electrodes of rotor and stator, thickness of the rotor and stator, and air gap between the rotor and stator. The three designs that designed by the Ansys Maxwell 3D and analyze the force generated by the designs. There are several parameters that are varying: (I) the actuator thickness ;(ii) air gap between rotor and stator. In this paper, three types of designs for the rotary electrostatic actuator are discussed; i.e. (a) Bottom-driven (linear type), (b) bottom-driven (skewed type); and (c) Side-driven. From this research it was concluded that the bottom-driven (skewed type) actuator will produce the largest force compared to other actuator which is 5.95808mN.

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“…Serious postoperative vision problems may occur if the lens is inserted incorrectly and needs to be removed. Precision piezoelectric micromotors have been developed for intraocular delivery of replacement lenses after cataract removal [7]. These inchworm actuators use a glider and clamp arrangement to generate large forces over small displacements.…”

Section: E Eye Surgerymentioning

confidence: 99%

Applications of MEMS in Surgery

Rebello

2004

Proc. IEEE

198

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In the past few decades, microelectromechanical systems (MEMS) have found themselves being adopted into a wide variety of fields and disciplines. Recently there has been an increased interest in the use of MEMS for surgical applications. MEMS technology has the potential to not only improve the functionality of existing surgical devices, but also add new capabilities, which allow surgeons to develop new techniques and perform entirely new procedures. MEMS can improve surgical outcomes, lower risk, and help control costs by providing the surgeon with real-time feedback on the operation. This paper discusses the challenges MEMS face in the medical device market along with current applications and future directions for the technology.

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Precision micromotor for surgery

Cited by 12 publications

References 3 publications

Design and fabrication of a flexible MEMS-based electro-mechanical sensor array for breast cancer diagnosis

Design and fabrication of a flexible MEMS-based electro-mechanical sensor array for breast cancer diagnosis

Force Characterization and Optimization of the Bottom-Driven Type and Side-Driven Type Rotary Motion Electrostatic Actuator using FEM

Applications of MEMS in Surgery

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