PI-Medical Piezoceramic Drive Solutions for Medical Engineering

Medical engineering and related life-science disciplines have a multi-faceted requirements profile for the motion drives employed. The spectrum goes from high-precision positioning systems to simple drive components which are compact, fast, reliable and energy-saving. Piezoceramic drives are perfect for both these applications.

Piezoceramic drives for medical engineering

Physik Instrumente (PI) successfully integrates appropriate solutions in a wide variety of medical applications. Since the piezoelectric ceramics are developed and manufactured in-house at PI Ceramic, PI can be very flexible in reacting to customers’ requirements. From the piezoceramic disk for generating ultrasound through to six-axis positioning systems for load positioning in strong magnetic fields, PI and PI Ceramic provide a broad spectrum of drives for medical engineering.

  • Clinical research and diagnostics
  • Microscopy and therapeutic applications
  • High-precision dosing
  • Moving test strips, pumps and nebulisers

Piezoceramic elements

Piezoelectric materials convert electrical energy directly into mechanical energy and vice versa. Their motion is based on crystalline displacements, so there is neither friction nor wear. Piezoceramic components can be used as ultrasonic generators, actuators or sensors. They therefore have a wide range of applications in medical engineering. These include micro-dosing pumps and nebulisers to generate homogenous aerosols, sensors for flow measurement, and air-bubble detectors. Even systems which are energy self-sufficient can be realised.

Piezo actuators

A piezo actuator is basically a large number of piezoceramic elements stacked together in order to achieve larger travel ranges. The motion is based on crystalline effects and so there are no rotating parts, neither is there any friction; piezo actuators are therefore practically maintenance-free and non-wearing.

To keep the operating voltages low, the individual layers in the so-called multilayer actuators are very thin. They are manufactured using co-fired technology which guarantees maximum reliability. The actuators are electrically insulated in a way which is humidity resistant and are used in medical engineering, e.g. in dosing applications, pumps and valves.

Piezoelectric drives for large travel ranges

Drives that are based on piezomotors combine the high stiffness and dynamics of pure piezo actuators with unlimited travel ranges. They also operate with high resolution in the nanometer range. This means they can always replace conventional motor-spindle combinations when these are not small, precise, fast, powerful or reliable enough. In medical engineering, this is the case when pipetting or in robotics, for example. Different versions cover a wide variety of application requirements.

High-accuracy piezo positioning systems

PI usually uses piezo actuators or piezoelectric linear drives in its positioning systems. Friction-free flexures provide maximum guiding accuracy, while capacitive sensors measure the position. They come from PI’s own product programme, as do the controllers and the control and operating software.

The perfectly matched components are one of the main reasons why the systems have a high positional accuracy in the nanometer range. In medical engineering they are mainly used for imaging and robotics applications. The dynamics and compact size of the piezo positioning systems can also benefit positioning and scanning applications where nanometer accuracy is not required.

Hexapods

Hexapod systems are based on six high-resolution actuators which act on a common platform. Their parallel kinematics design means they operate with higher dynamics and precision than independent axes constructed in series. The control not only allows repeatable precise motion to the target position, it also makes it possible to precisely specify the exact route. In medical engineering hexapods are mainly used for handling systems or for surgery and endoscopy. In therapeutics, they allow the patient to be placed in exactly the right position, for treatment of a tumor, for example.

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Press Release

Lead-Free Piezo Ceramic Material from PI Ceramic Successful in First Industrial Applications

PI Ceramic is proud to announce the release of PIC700 material, which is lead-free, ceramic and can be used in first industrial applications.

White Papers

Ultra-High-Resolution Microscopy in a Modular System

In life sciences, chemical-pharmaceutical analyses or modern material sciences, the optical resolution and information content of classical microscopy methods are no longer sufficient.

Address
Physik Instrumente (PI) GmbH & Co. KG

Auf der Roemerstr. 1

76228 Karlsruhe

Other

Germany

+49 721/4846-0 +49 721/4846-1019 www.pi-medical.ws Videos Catalogues and brochures

PI-Medical Images

Products and Services

Video

Press Release

14 November 2014

PI Ceramic is proud to announce the release of PIC700 material, which is lead-free, ceramic and can be used in first industrial applications.

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29 April 2014

Large clear aperture, high control dynamics, fast settling times and compact dimensions: PI launches a new product line of linear nanopositioning systems for a broad range of applications.

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16 March 2014

Achieving razor-sharp images even without camera support and excluding adverse effects, such as trembling hands or vehicle vibration, are important requirements on modern camera systems today.

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6 February 2014

A linear stage from PI miCos enables scientists to study phenomena in molecular physics in the femtosecond range. Requirements are quite demanding here, components for an experiment setup with intensive X-ray laser pulses have to be tuned accordingly.

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13 January 2014

With Ignazio Piacentini, the PI Group has gained an expert in the field of photonics, system integration and machine vision for the new market sector of silicon photonics.

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13 November 2013

In N-603 linear positioning stages, Physik Instrumente has replaced a conventional piezo actuator with a high-resolution piezo stepping drive of the NEXACT® series, which has an unlimited travel range theoretically.

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12 November 2013

The new P-878 DuraAct Power piezo patch transducer from PI Ceramic uses an operating voltage of only -20V to 120V, and is the only one of its kind on the market.

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3 November 2013

The nanopositioning system for high-resolution microscopy from PI (Physik Instrumente) is characterized by a large clear aperture of 160mm × 110mm, high positional stability, and rapid settling times.

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22 October 2013

The V-900KPIC PIMag™ linear actuator is a compact and cost-effective drive for dosing, testing and focusing applications.

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16 October 2013

The U-264KSPA linear actuator from PI (Physik Instrumente) is a self-locking drive that has been optimized for being produced in large quantities from engineering thermoplastics.

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10 October 2013

With the new ring actuator, composed of annular PICMA® chip multilayer piezo actuators, dimensions and travel ranges can be flexibly scaled.

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1 July 2013

The new linear stage version M-663.5U is especially suited for positioning tasks in automation where a resolution of 0.6µm and a step size of 2µm are sufficient. The integrated PILine®linear motor provides push forces to 5N and a maximum velocity of up to 250m/s over an 18mm travel range.

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21 June 2013

Precision was the motto when we started and remains so today. PI (Physik Instrumente) has been an exhibitor for 40 consecutive years at the LASER World of PHOTONICS, starting in 1973.

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17 June 2013

Large clear aperture, high control dynamics, fast settling times and compact dimensions: PI launches a new product line of linear nanopositioning systems for a broad range of applications.

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7 June 2013

Physik Instrumente (PI) has introduced the new LPS-24 series. At only 24mm³ × 33mm³ × 20mm³, these new miniature positioning stages provide a travel range of 15mm with nanometer-precision resolution.

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5 June 2013

Patient-friendly minimally invasive interventions, for example in laparoscopies, are not conceivable without high-resolution imaging systems.

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26 April 2013

50 of the ALMA observatory antennas use high-precision Hexapods from PI. Under extreme ambient conditions of the Atacama Desert, the Hexapods align the sub-reflectors to the large main reflectors of the radio telescopes.

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25 March 2013

PI presents a modular concept for six-axis positioning systems. Due to its modularity, the high-precision parallel kinematics can be adapted fast and efficiently to customer requirements.

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18 March 2013

In many areas of automation technology, precision requirements are becoming more and more demanding. There is no end in sight to this development.

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12 March 2013

The new MCS XY stage from PI miCos for industrial measurement technology combines high guiding and positioning accuracy with loads of up to 20kg and high dynamics.

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26 February 2013

The new C-884 motion controller from PI permits a vector movement of positioning systems with DC motors in four axes.

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8 February 2013

Thanks to its high output power, the digital single-channel controller E-709.CHG from PI (Physik Instrumente) provides highly dynamic and nanometer-precise operation of piezo-based stages with high stiffness and electrical capacitance.

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6 February 2013

PI miCos has extended its LPS series of linear positioning stages. The drive arrangement of the new, compact LPS-45 stage series is based on a piezoelectric inertia drive.

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28 January 2013

In the coming years, sectors such as the semiconductor industry, life sciences or biotechnology will continue to grow. Increasing requirements in these sectors often affect supporting technologies.

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10 December 2012

PI Ceramic now manufactures PICMA® chip actuators with the dimensions 10mm × 10mm × 2mm. These ultra-compact piezo actuators attain forces of up to 2,000N with a displacement of 2.2µm.

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5 December 2012

The extremely cost-efficient and compact P-604 lever actuator supplements the portfolio of the PiezoMove series. The linear actuator achieves a travel range of 300µm and is exclusively designed for open-loop operation.

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3 December 2012

For applications such as material testing for quality control purposes or highly dynamic control of valves in test stands, PI (Physik Instrumente) presents the E-482, a new high-power piezo amplifier / controller with 6A peak current at 1,050V voltage swing.

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19 November 2012

The use of piezo-based tip/tilt mirror systems and ultrasonic drives from PI guarantees the precision required for the refractive correction of visual acuity.

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7 November 2012

Lasers are versatile tools. Nowadays, they are just as indispensable in materials processing as in eye surgery or super high resolution microscopy.

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7 November 2012

Human beings are visual animals, in other words, they acquire most information visually. It is therefore no wonder that vision is very important.

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25 October 2012

Surface inspections are nowadays indispensable in many areas. The trend is towards increasingly smaller structures, for example, when testing nanocoatings. Depending on the requirements, different methods are suitable; they range from interferometry and confocal microscopy to high-resolution camera systems, which allow three-dimensional inspections, and to nanoindentation which is used in material and hardness inspections.

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17 September 2012

Piezoelectric materials can produce an electric voltage when a force is applied to them (piezo effect), and they can change their dimensions when an electric field is applied (inverse piezo effect). They convert mechanical power into electrical power and vice versa; they are also referred to as transducers.

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14 September 2012

The PICMA® Bender product line now offers a disk-shaped, multilayer piezo bending actuator. PI Ceramic manufactures the Ø44 × 0.65mm bending actuator for a displacement of up to 270µm.

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10 August 2012

Radio sensors can monitor installations at locations which are difficult to get to and thus support automation. The energy supply is an important consideration in such applications. In order to dispense with the need for batteries and the associated servicing work, it is possible to use energy from the surrounding environment: energy harvesting.

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2 July 2012

PI Ceramic has added PICMA® Stack multilayer piezo actuators that are encapsulated in a stainless steel casing to its standard product range.

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19 June 2012

PI Ceramic publishes its new product catalogue 'Piezoelectric Actuators - Components, Technologies, Operation'. The new edition contains all standard products in the area of piezo actuators, as well as detailed information on the principles of piezo technology.

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19 June 2012

Does a machine vibrate? Does a plate or a pipe oscillate? In that case, the released energy could be used to locally supply an electronic component with energy and thus dispense with batteries! In this way, for example, wireless sensors can monitor entire plants even in difficult-to-access places, thereby supporting automation.

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10 June 2012

Hexapods from PI are indispensable for high-precision positioning in six axes. The parallel-kinematics Hexapods are offered as a system, including a powerful digital controller and comprehensive software support.

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10 June 2012

The H-811 miniature Hexapod from PI has very compact dimensions with a diameter of only 130 mm and a height of 115 mm. In addition to the vacuum version, it is now also available in an air version.

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30 May 2012

PIShift drives are compact and cost-efficient piezo linear drives from PI (Physik Instrumente), the Karlsruhe specialist for positioning systems. The drives use the stick-slip effect and, due to the high operating frequency of more than 20 kHz, they are noiseless.

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30 May 2012

With the E-870 series for the piezo-based PIShift inertia drives, PI (Physik Instrumente) offers a series of drive electronics at various integration levels.

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2 May 2012

Physik Instrumente (PI) GmbH & Co. KG, the manufacturer of high-precision positioning systems, appointed new managing directors in April 2012 as part of the company's succession planning.

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19 April 2012

PI-Medical offers a new, fast, high-precision XY positioning system, which has been optimised for applications with inverted microscopes.

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21 March 2012

A recent challenge for the Eschbach engineers at PI miCos was an assembly line production under vacuum conditions with 10-6 mbar.

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21 February 2012

PI (Physik Instrumente), the Karlsruhe-based specialist for piezoceramic drive and positioning systems, offers ultrasonic piezomotors for different performance classes with its PILine series.

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25 September 2011

The Karlsruhe-based company PI has recently become co-owner of miCos GmbH in Eschebach, Germany.

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27 June 2011

Phase shifters are used in laser measurement to align optical path lengths. These move optics in the range of a wavelength, which corresponds to an adjustment range of less than one micrometer. It is crucial for the alignment to take place quickly and in a stable manner. For the new S-3

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27 June 2011

The E-563 control electronics provides maximum resolution in three channels for classic nanopositioning systems. Although the price of this system is less than half of that of a fully digital high-end variant, the user still gets important performance features of PI (Physik Instrumente) controlle

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2 May 2011

Piezoelectric components and drives from PI Ceramic and Physik Instrumente (PI) are known for being employed in high-precision positioning systems. In addition, they are suitable for less accurate systems which nevertheless are small, fast, reliable and energy saving, and with that they fulfil th

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20 March 2011

The performance of precision positioning systems equally depends on their mechanical systems and on the way they are controlled. Physik Instrumente (PI) from Karlsruhe, Germany, the specialist for piezo-based nanopositioning, has been relying on fully digital technology for more than ten years no

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20 March 2011

In vacuum chambers there is very little installation space for applications. Since the object to be moved is not permanently accessible, a flexible placement of the load (e.g. a sample) is particularly important. The new M-811.STV Miniature Hexapod from Physik Instrumente (PI) offers th

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20 March 2011

PI-Medical, manufacturer of piezoceramic drive solutions for the medical industry, will be attending MEDTEC 2011 in Stuttgart, Germany, which is being held from 22-24 March 2011. Visit us at our booth (4735) to find our more about our company's solutions and services.

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14 March 2011

PI-Medical, a leading provider of piezoceramic drives for medical engineering, has released a new, free-to-download white paper: 'Drive Elements Made of Piezoelectric Materials'. Demands on components increase with the advancing miniaturisation in process and medical engineering. This p

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Regional Offices

Physik Instrumente (PI) GmbH & Co. KG

Auf der Roemerstr. 1

76228 Karlsruhe

Other

Germany

+49 721/4846-0 +49 721/4846-1019 www.pi-medical.ws Videos Catalogues and brochures
Japan

PI Japan Co., Ltd

Akebono-cho 2-38-5

Tachikawa-shi J-Tokyo 190

Other

Japan

+81 (42) 526 7300 +81 (42) 526 7301
China

Physik Instrumente (PI Shanghai) Co., Ltd

Building No. 7-106 Longdong Avenue 3000

201203 Shanghai

Other

China

+86 (21) 518 792 98 +86 (21) 687 900 98 www.pi-china.cn
PI-Medical

Trabuco Rd., Suite 100

CA 92620

Irvine

Other

United States of America

+1 (949) 679 9191 +1 (949) 679 9292 www.pi-usa.us
PI-Medical

Hanahara Dai-ni Building, #703

4-11-27 Nishinakajima

J-Osaka 532

Yodogawa-ku, Osaka-shi

Other

Japan

+81 (6) 6304 5605 +81 (6) 6304 5606 www.pi-japan.jp
USA

PI (Physik Instrumente) LP

16 Albert St.

MA 01501

Auburn

Other

United States of America

+1 (508) 832 3456 +1 (508) 832 05065420
France

PI France SAS

244 bis, avenue Marx Dormoy

92120 Montrouge

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France

+33 (1) 55 22 60 00 +33 (1) 41 48 56 62 www.pifrance.fr
Italy

Physik Instrumente (PI) Srl

Via G. Marconi, 28

I-20091 Bresso (MI)

Other

Italy

+39 (02) 665 011 01 +39 (02) 610 396 56 www.pionline.it
UK and Ireland

PI (Physik Instrumente) Ltd

Trent House, University Way

Bedford MK43 0AN

Cranfield Technology Park, Cranfield

Other

United Kingdom

+44 (1234) 756 360 +44 (1234) 756 369 www.physikinstrumente.co.uk

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