WO1999002100A1 - Koordinatenführungs- und referenzpositioniersystem - Google Patents
Koordinatenführungs- und referenzpositioniersystem Download PDFInfo
- Publication number
- WO1999002100A1 WO1999002100A1 PCT/EP1998/004195 EP9804195W WO9902100A1 WO 1999002100 A1 WO1999002100 A1 WO 1999002100A1 EP 9804195 W EP9804195 W EP 9804195W WO 9902100 A1 WO9902100 A1 WO 9902100A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- organism
- instruments
- examination
- coordinate
- treatment
- Prior art date
Links
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
- A61B6/0421—Supports, e.g. tables or beds, for the body or parts of the body with immobilising means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0485—Inflatable rests for lifting of patients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
Definitions
- the invention is a device for improving and simplifying examination and treatment methods, which are carried out according to a standardized scheme, the organism being positioned with the aid of a mechanical holder. This positioning can also be restricted to parts of the organism.
- the term organism means both the entire organism or even parts of it. It makes no difference whether the organism is alive or not.
- the organisms can be humans, animals or plants. Any device that allows it can serve as a mechanical holder to fix the organism in such a way that a coordinate reference system is determined on the basis of the defined position of the organism or parts of it.
- Parts of the organism can also be understood as inner areas of the organism, which have been exposed during an operation, for example directions can be rigid connections to the organism or parts of it (e.g. to bones) or
- Positioning shells that are adapted to external shapes or positioning cushions that have padded or air-filled chambers or combinations of rigid connections and / or positioning shells and / or positioning cushions.
- external physical fields e.g. electrical or magnetic fields, current fields, etc.
- the totality of these mounting devices, which define a reference coordinate system through these forced positioning of the organism, is shown in hereinafter referred to as the reference positioning system.
- the reference coordinate system can refer to the levels and directions that are common in medicine and biology (see e.g.
- Examination instruments are all devices used in medicine, veterinary medicine, biology, botany and agriculture to record anatomical, motor, physiological, psychological, physical, chemical and biochemical properties of the organism
- veterinary medicine, biology, botany and agriculture used devices with the help of surgical, orthopedic, physiological, psychological, physical, chemi chemical or biochemical effects on the organism can be achieved
- a coordinate guide device is used for the precise and defined guidance of examination and / or treatment instruments relative to the reference coordinate system, the position and / or orientation assignment to the organism being ensured by a mechanical connection with the reference positioning system. Individual or multiple degrees of freedom of the guide guard can be blocked, so that only the trajectories and / or direction settings specified thereby can be run through if an examination or treatment procedure requires this.
- the number of degrees of freedom can also be greater than 6 if this makes the handling of the examination and / or treatment instruments easier, for example be expedient to use 3 Cartesian coordinates and 3 directions of orientation to define a starting point for an examination or treatment procedure and by further degrees of freedom, for example with With the help of flat polar coordinates, the examination and treatment instruments can be guided along these additional degrees of freedom.
- the guidance system with Cartesian coordinates and the orientation directions can be blocked after reaching the starting position and starting orientation All systems come as coordinate systems for the guidance guideline, that is, in addition to Cartesian and non-orthogonal and curvilinear coordinate systems, in question All conceivable trajectories and directions for the guidance of the treatment and examination instruments relative to the anatomical shape of the organism can be realized.
- the given freedom of movement allows manual guidance of the instruments only in the permitted paths relative to the reference coordinate system or also permits them electronically Controlled guidance of the instruments with the help of electro-mechanical or hydraulic or pneumatic elements.
- position and orientation ngssensoren of various types also enables the controlled movement control and the registration and logging of the movement sequences and the positions.
- the reference coordinate system is already defined in advance by the shape of the reference positioning system adapted to the organism and no issuing procedure or other technical devices are required for the assignment from the position and orientation coordinates of the instruments to the reference system and thus to the anatomical shape of the organism.
- This is a decisive advantage over other coordinate guidance systems that have already been made known to the public, which require greater technical effort for coordinate assignment and thus lead to more costly examination and / or treatment procedures
- the reference positioning system described here and the coordinate guidance system coupled to it are easy to use and require no technical requirements cal maintenance or calibration work In various examination and / or treatment procedures, only the mechanical holder for the respective organism is used and the freedom of movement of the coordinate guidance system is determined according to the task.
- the dimensions of the reference positioning system used and the 75 coordinate guidance systems are selected according to the size of the organisms to be examined or treated and can vary from the micrometer range for cells and cell organelles to the meter range for very large organisms. Ease of use is particularly important in series and screening examinations
- the device can be used advantageously not only in medicine but also in many other areas in which organisms are examined or treated in a defined position
- Sonographic examination methods have several advantages over other imaging methods: Wide availability of the devices, since sonography devices are relatively inexpensive to obtain in comparison with computer tomographs and no burden on the organisms
- FIGS. 1 and 2 demonstrates the angular distortion due to sound propagation time differences in tissue G2 with a speed of sound c *, that of the speed c 0 in tissue G1 (with which the sonography device
- FIGS. 1 and 2 in a simplified schematic correspond to the problems in sonography of the infant hip (R. Graf, C. Tschauner: Sonography of the Infant Hip. Radiologie (1994) 34: 30-38). There are also wrong ones
- Avoiding or minimizing artifacts is essential for visual assessment essential and essential for the acquisition of diagnostically important measurement values. Such examination and measurement artifacts, which can lead to serious incorrect treatment, are known from medical practice.These artifacts can be eliminated or minimized through a defined guidance of the sound transducers
- sound transducers can only be activated for those axes and radiation directions that are permitted by a standardized examination procedure.
- a prerequisite for a successful screening program is the defined positioning of the body with a reference positioning system, which in the case of infant ultrasound is designed as a positioning cushion, with the surfaces made out suitable plastics (see chapter Construction solution)
- FIG. 3 is a plan view of an exemplary embodiment of a reference positioning and coordinate guidance system with a schematic representation of a positioning cushion for one organism to be examined
- Treatment conditions correspond to and thus define a reference coordinate system Fig. 4
- Variant of a reference positioning and coordinate guidance system (dimensions in mm)
- This exemplary embodiment can be used for the child's hip ultrasound according to Graf if an ultrasound head is used as an instrument.
- the degrees of freedom in the xy plane are included Help
- the positioning cushion according to Fig. 5 is mounted on the base plate - Verlag, Stuttgart, 1995), embeds In this example, an air-filled cushion with several chambers is used.
- the same device can also be used for biopsies in infants if a biopsy instrument is used instead of the ultrasound head.
- the second examiner can (Assistant) to be replaced by the device.
- the same device can be used for a variety of treatments and / or exams on child 185. For use in adult patients, the dimensions must be adjusted according to the size and shape.
- the area of application presented here for an example from human medicine can easily be transferred to the examination or treatment of various organisms.
- biopsies which are more precise and easier to perform due to the defined storage and fixation with the aid of the device.
- Cutting directions is recorded i. a. does not appear congruent in the sonographic recordings, the data records recorded with the aid of the device under defined irradiation directions can be used as the starting point for arithmetic reconstruction of the sonographically relevant tissue properties and the true geometry. To avoid ambiguity
- the innovation enables 215 descriptions of the shape and mechanical properties of the human as well as the animal body and of plants.
- the usual models in biomechanics (Hanavan, EP, 1964: A Mathematical Model of the Human Body. AMRL Technical Report, TR-64-102; Wright-Patterson Air Force Base, OH) are only roughly adapted to the real conditions and could be significantly refined by the system described here 220 will be
- the same device - in conjunction with a dynamometer - can also be used to investigate the elastic properties of biomaterials.
- the degrees of freedom of movement and amplitudes of individual joints can also be determined with this. This also allows the follow-up of rehabilitation measures to restore mobility
- the device can also be used to study muscular force-time courses in space relative to the reference coordinate system
- the device can also be constructed in a particularly stable form and can be used as a precisely positionable mounting platform for fastening surgical tools in a defined starting position relative to the body, that is to say relative to the reference coordinate system
- the coordinate guidance system can be used to carry out examinations or treatments in a defined position relative to the organism
- treatment methods such as local heat treatment inside the body with the help of therapeutic ultrasound - both the location of the beam entry into the body and the direction of the beam relative to the organism are crucial for successful implementation.
- Such therapy forms can be optimized, standardized and thus using the device can also be automated or partially automated The same applies to a large number of physiotherapists
- the reference positioning system is designed in such a way that it meets the required hygienic requirements, it must be easy to wash off and resistant to disinfectants and cleaning agents. Suitable materials are to be found under the item "constructive solution"
- FIG. 5 shows such an inflatable positioning cushion which was developed for sonographic examination of the hip of children between the ages of zero and 12 months
- the device presented in this document can also be used advantageously in all releasing procedures which require the body to be immobilized during the exposure time for the image information.
- the device is excellently suited to help the child's hip
- An inoculation machine is to be understood as a device that is electronically controlled using mechanical execution elements (electromechanical or magnetic or pneumatic or hydraulic) the required amount of vaccine for the respective organism with a given body mass ( automatic dosing) and injected into the desired body region of the animal
- the 270 positioning shell can consist of two half-shells, which allow the animal to be fixed quickly
- Another area of application from agriculture is the taking of samples or the injection of substances into predetermined areas of a fruit or a plant.
- the fruit or plant can be spatially relative to the shape of the
- Fruit or plant can be brought to a defined position in order to then be examined or treated at predetermined locations to be enclosed
- the connection to an assembly line then allows the throughput of large numbers of fruits or plants per time
- the reference positioning system is implemented constructively in accordance with the respective shape and size and the axes of the organism.
- the constructive solution of the reference positioning system must be such that the organism or parts of it are in a defined position as the respective one
- the forces and / or torques required for the positioning of the organism can be transferred to the organism by mechanical elements, by bearing cups and pillows, as well as by field forces of various types, to a predetermined one Forcing the position
- the field forces can be, for example, electrical, magnetic or caused by current fields
- Patented storage tray (Pat No. 381 017), but which does not meet the hygienic requirements in medical practice satisfactorily and whose shape is also not optimally adapted to the body shape of the infant.To be able to examine different sized organisms of one type, storage trays are the current dimensions
- 300 can be adapted, advantageous. This can be achieved, for example, by inflatable plastic sleeves that are shaped according to the surface of the organism to be examined or treated and that give way elastically or can be adapted by varying the internal pressure and thereby retain their form-fitting properties. For the construction of such positioning cushions Different foils and multilayer structures of such foils are used
- FIG. 5 shows a positioning cushion designed for the sonographic examination of the suckling hoof, in which the principles described above are implemented.
- the positioning cushion is attached to the base plate in an axis-appropriate manner (see FIGS. 3 and 4)
- a base plate instead of a base plate, other mechanical support structures (e.g. molded pipes, sheets, etc.) can also be used
- the examination and / or treatment instruments are guided with the aid of a coordinate guidance system.
- Cartesian, non-orthogonal ones can be used as the coordinate system
- curvilinear systems can be implemented constructively in order to optimally meet the respective management requirements.
- the number of degrees of freedom is implemented constructively according to the question, whereby blocking individual degrees of freedom or blocking parts of an elongation area can be essential for the examination and / or treatment
- a number of more than 6 degrees of freedom can also be advantageous for practical work
- the position and orientation of the examination and / or treatment instruments can be registered in every phase of the examination and / or treatment. In the simplest case, this can be done by engraved scales and read by the eye, or by different sensors for paths and angles, which - eg contain electromechanical, magnetic or optical components.
- the position information from the sensors can be used as analog signals or in
- 325 digitized form are available and are further processed in order to, for example, distance-time or angle-time
- acceleration or speed sensors can also be used and the paths can be determined from them by integration
- the movements along the coordinates can be done manually or by
- X2CrN ⁇ Mo18 12 3 or X5CrN ⁇ Mo18 12 3 can be used as examples of suitable steels Aluminum alloys
- Plastics that have the required mechanical and thermal properties and very good chemical resistance can also be used. These plastics pay
- Polyvinylchloride PVC
- polypropylene PP
- polystyrene PS
- polyesters polycarbonates
- polyamides Other engineering plastics:
- POM polybutylene terephthalates
- PET polyethylene terephthalates
- polyester ether elastomers TPE-E
- LCP liquid crystalline polymers
- COC cycloolefin copolymers
- PE-UHMW ultra high molecular weight polyethylene
- multi-layer material compositions can also be used. This also applies to the construction of the plastic skins that are used to implement the positioning cushions. For this, among other things different polyolefins
- thermoplastic elastomers or natural rubber or synthetic rubber to achieve flexibility.
- the weight of the movable parts of the guide system is kept small or by counterweights and / or
- balancer balances the device.
- FIG. 3 shows an exemplary embodiment for guided movements along the x, y and z axes and for rotations which correspond to the angles of rotation ⁇ x , ⁇ y and ⁇ z .
- the instrument holder is here
- FIGS. 3 and 4 An exemplary embodiment of an inflatable positioning cushion for the ultrasound of the baby's hip, which meets the medical, measuring and hygienic requirements, is shown in FIG. 5.
- the positioning cushion is aligned with the axis via the bracket
- This embodiment of a positioning cushion is characterized in that it consists of an inflatable synthetic skin, the dimensional stability of which is achieved by means of several air chambers and corresponding cuts of the synthetic skin, the positive fit, that is to say the
- a second y-rail (on the side H,) can improve the accuracy due to the increased stability to eg 10 "4 m or 10 1 deg, despite possibly significantly higher forces associated with surgical work
- the guidance in the xy plane can also take place through two legs connected by ball-bearing hinge joints, as shown in
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- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU90637/98A AU9063798A (en) | 1997-07-10 | 1998-07-07 | Coordinate guidance and reference positioning system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1191/97 | 1997-07-10 | ||
AT0119197A AT405126B (de) | 1997-07-10 | 1997-07-10 | Koordinatenführungssystem und referenzpositioniersystem |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999002100A1 true WO1999002100A1 (de) | 1999-01-21 |
Family
ID=3508582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/004195 WO1999002100A1 (de) | 1997-07-10 | 1998-07-07 | Koordinatenführungs- und referenzpositioniersystem |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT405126B (de) |
AU (1) | AU9063798A (de) |
WO (1) | WO1999002100A1 (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6702835B2 (en) | 2001-09-07 | 2004-03-09 | Core Medical, Inc. | Needle apparatus for closing septal defects and methods for using such apparatus |
DE102005001356A1 (de) * | 2005-01-11 | 2006-08-03 | Forschungszentrum Jülich GmbH | Vorrichtung zum Halten von lebenden Objekten bei physiologischen Messungen |
EP1955734A1 (de) * | 2007-02-06 | 2008-08-13 | Siemens Schweiz AG | Vorrichtung zur Positionierung eines atmenden Menschen |
US7678132B2 (en) | 2001-09-06 | 2010-03-16 | Ovalis, Inc. | Systems and methods for treating septal defects |
US7740640B2 (en) | 2001-09-06 | 2010-06-22 | Ovalis, Inc. | Clip apparatus for closing septal defects and methods of use |
US7846179B2 (en) | 2005-09-01 | 2010-12-07 | Ovalis, Inc. | Suture-based systems and methods for treating septal defects |
US8579936B2 (en) | 2005-07-05 | 2013-11-12 | ProMed, Inc. | Centering of delivery devices with respect to a septal defect |
US8852229B2 (en) | 2003-10-17 | 2014-10-07 | Cordis Corporation | Locator and closure device and method of use |
US8888812B2 (en) | 2000-12-14 | 2014-11-18 | Cordis Corporation | Plug with collet and apparatus and methods for delivering such plugs |
US8926654B2 (en) | 2005-05-04 | 2015-01-06 | Cordis Corporation | Locator and closure device and method of use |
US9492148B2 (en) | 2000-12-14 | 2016-11-15 | CARDINAL HEALTH SWITZERLAND 515 GmbH | Apparatus and methods for sealing vascular punctures |
US9655602B2 (en) | 2000-12-14 | 2017-05-23 | CARDINAL HEALTH SWITZERLAND 515 GmbH | Vascular plug having composite construction |
DE112014003978B4 (de) | 2013-08-27 | 2019-01-03 | Peter Larson | Verfahren zur Herstellung einer Vorrichtung zur Patientenpositionierung im Bereich der Strahlenbehandlung |
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EP0326768A2 (de) | 1988-02-01 | 1989-08-09 | Faro Medical Technologies Inc. | Computerunterstütze chirurgische Vorrichtung |
DE3908648A1 (de) | 1989-03-16 | 1990-09-20 | Dornier Medizintechnik | Darstellung von ultraschall-bildern |
WO1991004711A1 (fr) | 1989-10-05 | 1991-04-18 | Diadix S.A. | Systeme interactif d'intervention locale a l'interieur d'une structure non homogene |
WO1991006198A1 (en) * | 1989-10-23 | 1991-05-02 | A.T.F. Consolidated, Inc. | Emission tomography carousel system and method |
EP0427358A1 (de) | 1989-11-08 | 1991-05-15 | George S. Allen | Mechanischer Arm für ein interaktives, bildgesteuertes, chirurgisches System |
EP0443174A1 (de) * | 1989-12-21 | 1991-08-28 | Lunar Corporation | Vorrichtung und Verfahren zum Positionieren eines Patienten |
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US8888812B2 (en) | 2000-12-14 | 2014-11-18 | Cordis Corporation | Plug with collet and apparatus and methods for delivering such plugs |
US9655602B2 (en) | 2000-12-14 | 2017-05-23 | CARDINAL HEALTH SWITZERLAND 515 GmbH | Vascular plug having composite construction |
US9492148B2 (en) | 2000-12-14 | 2016-11-15 | CARDINAL HEALTH SWITZERLAND 515 GmbH | Apparatus and methods for sealing vascular punctures |
US7678132B2 (en) | 2001-09-06 | 2010-03-16 | Ovalis, Inc. | Systems and methods for treating septal defects |
US7686828B2 (en) | 2001-09-06 | 2010-03-30 | Ovalis, Inc. | Systems and methods for treating septal defects |
US7740640B2 (en) | 2001-09-06 | 2010-06-22 | Ovalis, Inc. | Clip apparatus for closing septal defects and methods of use |
US8758401B2 (en) | 2001-09-06 | 2014-06-24 | ProMed, Inc. | Systems and methods for treating septal defects |
US6702835B2 (en) | 2001-09-07 | 2004-03-09 | Core Medical, Inc. | Needle apparatus for closing septal defects and methods for using such apparatus |
US8747483B2 (en) | 2001-09-07 | 2014-06-10 | ProMed, Inc. | Needle apparatus for closing septal defects and methods for using such apparatus |
US8852229B2 (en) | 2003-10-17 | 2014-10-07 | Cordis Corporation | Locator and closure device and method of use |
DE102005001356A1 (de) * | 2005-01-11 | 2006-08-03 | Forschungszentrum Jülich GmbH | Vorrichtung zum Halten von lebenden Objekten bei physiologischen Messungen |
DE102005001356B4 (de) * | 2005-01-11 | 2006-12-14 | Forschungszentrum Jülich GmbH | Vorrichtung zum Halten eines lebenden Objektes bei physiologischen Messungen |
US8926654B2 (en) | 2005-05-04 | 2015-01-06 | Cordis Corporation | Locator and closure device and method of use |
US9289198B2 (en) | 2005-05-04 | 2016-03-22 | Cordis Corporation | Locator and closure device and method of use |
US8579936B2 (en) | 2005-07-05 | 2013-11-12 | ProMed, Inc. | Centering of delivery devices with respect to a septal defect |
US7846179B2 (en) | 2005-09-01 | 2010-12-07 | Ovalis, Inc. | Suture-based systems and methods for treating septal defects |
EP1955734A1 (de) * | 2007-02-06 | 2008-08-13 | Siemens Schweiz AG | Vorrichtung zur Positionierung eines atmenden Menschen |
DE112014003978B4 (de) | 2013-08-27 | 2019-01-03 | Peter Larson | Verfahren zur Herstellung einer Vorrichtung zur Patientenpositionierung im Bereich der Strahlenbehandlung |
Also Published As
Publication number | Publication date |
---|---|
ATA119197A (de) | 1998-10-15 |
AT405126B (de) | 1999-05-25 |
AU9063798A (en) | 1999-02-08 |
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