DE102013015108A1 - Positioning device for positioning an x-ray source - Google Patents

Positioning device for positioning an x-ray source

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Publication number
DE102013015108A1
DE102013015108A1 DE102013015108.2A DE102013015108A DE102013015108A1 DE 102013015108 A1 DE102013015108 A1 DE 102013015108A1 DE 102013015108 A DE102013015108 A DE 102013015108A DE 102013015108 A1 DE102013015108 A1 DE 102013015108A1
Authority
DE
Germany
Prior art keywords
positioning device
ray source
contact surface
positioning
tissue surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE102013015108.2A
Other languages
German (de)
Inventor
Frank Weigand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss Meditec AG
Original Assignee
Carl Zeiss Meditec AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss Meditec AG filed Critical Carl Zeiss Meditec AG
Priority to DE102013015108.2A priority Critical patent/DE102013015108A1/en
Publication of DE102013015108A1 publication Critical patent/DE102013015108A1/en
Application status is Withdrawn legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1028X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy using radiation sources applied onto the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053Mechanical features of the instrument of device
    • A61B2018/00273Anchoring means for temporary attachment of a device to tissue
    • A61B2018/00291Anchoring means for temporary attachment of a device to tissue using suction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N2005/1019Sources therefor
    • A61N2005/1022Generators, e.g. X-ray tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1085X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
    • A61N2005/1091Kilovoltage or orthovoltage range photons

Abstract

The invention relates to a positioning device for positioning an X-ray source 601 relative to a tissue surface 202, with a dimensionally stable base 101, 301, 701, 801, which has a contact surface 103, 303, 703, 803, which can be brought into contact with the tissue surface 202 ,
According to the invention, the positioning device comprises a chamber 104, 304, 704, 812 with an opening 105, 311, 711, which is arranged in the positioning device such that it can be closed by applying the positioning device to the tissue surface. Furthermore, there are means for generating a negative pressure 108, with the aid of which a negative pressure can be generated in the chamber 104, 312, 704, 812 in the case of a positioning device applied to the tissue surface 202, so that the tissue surface 202 at the contact surface 103, 303, 703, 803 is applied.

Description

  • The invention relates to a positioning device for positioning an X-ray source relative to a tissue surface. The positioning device comprises a dimensionally stable base body which has a contact surface which can be brought into contact with the tissue surface. Furthermore, the invention relates to an applicator for an X-ray source with such a positioning device and a radiotherapy device with an X-ray source and a positioning device.
  • Radiation therapy is a proven method for combating cancerous tumors or tumor remnants after surgical removal of the tumor. The affected tissue is exposed to the radiation of an X-ray source according to a defined treatment plan in order to destroy the tumor cells. The radiotherapy devices used can be differentiated according to the type of X-ray sources used. One class of radiotherapy devices uses high energy X-ray sources for tumor treatment, whose X-rays are directed from the outside to the body of the patient. A disadvantage of these radiotherapy devices with high-energy X-ray sources is that the radiation is always supplied to the body of the patient from a distance. Due to scattering effects and inaccuracies in the beam alignment, it is practically unavoidable that even surrounding, healthy tissue is exposed to a radiation dose.
  • In order to counteract this disadvantage, recently miniaturized radiotherapy devices with low-energy x-ray sources are increasingly used in which the x-ray radiation is generated and delivered in the immediate vicinity of the treatment site. The x-ray sources are usually directly or via an applicator in contact with the tissue to be irradiated. An advantage of such radiation therapy devices is that the surrounding, healthy tissue is exposed to a much lower radiation exposure.
  • In the WO 2013/024086 A1 is the principle of operation of such a miniaturized radiotherapy device for irradiation of a tissue with low-energy X-radiation described. In an electron source, electrons are initially released and accelerated in the direction of a so-called target. Upon impact of the electrons on the target, which consists for example of gold, the electrons are greatly delayed, resulting in X-rays, which is released largely non-directional. Suitable shielding can influence a radiation characteristic.
  • A radiotherapy device which is particularly suitable for irradiation of a flat tissue surface or tissue immediately beneath a planar tissue surface is known from US 5,378,237 DE 10 2009 058 581 A1 the applicant known. The radiation therapy device comprises a so-called radiation source element, which is accommodated in an applicator element of an applicator device. The applicator element has a free end that can be placed on the surface to be irradiated. The applicator device can be positioned on the surface to be treated with a positioning device, referred to as a fastening device. For this purpose, the positioning device is glued to the fabric surface or sewn to the surface. In the case of bonding, however, there is a risk that it dissolves during treatment or does not even last. Sewing takes time and leads to additional tissue damage.
  • An object of the present invention is to provide a positioning device for an X-ray source, which is characterized by a secure grip on the surface to be treated and easy to solve again.
  • The object is achieved by a positioning device with the features of claim 1.
  • A positioning device according to the invention comprises a chamber with an opening, wherein the opening is arranged in the positioning device such that it can be closed by applying the positioning device to the tissue surface. Furthermore, the positioning device comprises means for generating a negative pressure, with the help of which applied to the tissue surface positioning a negative pressure in the chamber can be generated, through which the tissue surface is pressed against the contact surface, so that a normal force between the contact surface and the tissue surface is reinforced. The term "negative pressure" is understood here as in the following so that a pressure generated by the means for generating a negative pressure in the chamber of the positioning device is lower than a prevailing ambient pressure.
  • After a proper application of the positioning device to the tissue surface, the opening of the chamber in the positioning device is closed by the tissue surface. The opening of the chamber may be at a distance from the contact surface. Alternatively, the opening of the chamber may also be formed in the contact surface. By creating a negative pressure in the chamber, the tissue surface becomes used on the contact surface, so that a frictional connection between the contact surface and tissue surface is formed, which can be overcome only by putting comparatively large forces. As a result, the risk of slippage of the positioning device on the tissue surface is significantly reduced. If the negative pressure is eliminated, the positioning device will make you lift it off the tissue surface.
  • In one embodiment of the invention, the chamber is at least partially formed in the base body, wherein the opening of the chamber is arranged in the plane of the contact surface. Preferably, the chamber is designed as a conduit which is flow-conductively connected to the means for generating a negative pressure and which opens at an opposite end of the means for generating a negative pressure in the contact surface. This embodiment is characterized by particular simplicity and is inexpensive to manufacture.
  • In one embodiment of the invention, a first sealing device is formed on the base body, which surrounds the contact surface, wherein the chamber is bounded by the contact surface and the first sealing device and wherein the opening of the chamber defined by the first sealing device or a free end of the first sealing device or is formed. As a result, a particularly good sealing of the (closed) chamber from the environment is ensured, so that the hold of the positioning device on the tissue surface is further improved.
  • In a further embodiment of the invention, the positioning device comprises a fastening device for fixing an X-ray source or an applicator of the X-ray source to the positioning device, which is designed such that when the positioning device is fixed, a displacement of the X-ray source in a plane parallel to the contact surface is at least largely suppressed. In this way, the x-ray source can be fixed relative to a point on the tissue surface, with displacement at an angle to the surface toward or away from the point still possible.
  • In a further embodiment of the invention, the fastening device is designed such that when the X-ray source is fixed, a displacement of the X-ray source perpendicular to the contact surface is at least largely suppressed. This ensures a secure positioning of the X-ray source relative to the tissue surface in all three spatial directions.
  • In a further embodiment of the invention, the base body of the positioning device is designed as a ring, wherein the contact surface is formed by an upper side of the ring and wherein the ring has an inner contour which is adapted to an outer contour of a male portion of the X-ray source or an applicator of the X-ray source. This ensures a secure support and fixation of the X-ray source or the applicator in the positioning device.
  • In a further embodiment of the invention, a second sealing device is arranged at a transition from the contact surface to the inner contour, wherein the opening of the chamber by the first sealing device or a free end of the first sealing device and the second sealing device or a free end of the second sealing device is fixed. As a result, a particularly good sealing of the chamber from the environment is ensured, so that the hold of the positioning device on the fabric surface is further improved.
  • An applicator according to the invention for an X-ray source is equipped with a positioning device according to one of claims 1 to 7. Applicator and positioning device are designed as a component or firmly connected. The one-piece design of the applicator and positioning device offers over the known from the prior art solution with a separate applicator and conventional positioning device the advantage that the applicator rests immediately after placing the positioning on the fabric with the entire contact surface of the tissue. This reduces the risk that, during the positioning of the applicator, foreign bodies or liquids, for example wound fluid, accumulate on the tissue surface, which after insertion of the applicator are located in the positioning device between the contact surface and the tissue surface. Furthermore, this embodiment is characterized in that during the positioning of the applicator on the tissue surface, no air between the contact surface and the tissue surface can be trapped, which would lead to a mispositioning of the X-ray source.
  • A radiotherapy device according to the invention comprises a positioning device for positioning the X-ray source relative to a tissue surface.
  • In the following the invention will be explained in more detail with reference to the drawings.
  • This shows in detail
  • 1 a first embodiment of a positioning aid according to the invention;
  • 2 : the positioning device off 1 in a sectional view;
  • 3 a second embodiment of a positioning aid according to the invention;
  • 4 : the positioning device off 3 in an attached position;
  • 5 : the positioning device off 3 in a fixed position;
  • 6 : the positioning device off 1 or 3 in interaction with a radiotherapy device;
  • 7 a first embodiment of an applicator according to the invention with positioning device;
  • 8th a second embodiment of an applicator according to the invention with positioning device; and
  • 9 : the applicator off 8th in a fixed position.
  • In 1 is a first embodiment of a positioning device according to the invention 100 for positioning an x-ray source relative to a tissue surface. The positioning device comprises a base body, which serves as a ring 101 is formed and an example cylindrical, the main body penetrating receiving opening 102 includes. The receiving opening 102 has an inner contour, which is adapted to an outer contour of a male X-ray source or a male applicator of an X-ray source. On one side of the ring 101 is a flat contact surface 103 formed, which can be brought into contact with the tissue surface, or by the ring 101 is placed on the tissue surface. Without restriction of generality, the contact surface 103 also have a defined shape deviating from a planar shape. For example, the contact surface may also be convex or concave and spherical or aspherical.
  • In the ring 101 are two chambers 104 formed on one side in openings 105 in the contact area 103 open out. At the opposite side of the contact surface of the ring 101 are the chambers with pipe connections 106 connected. The chambers can be made in a variety of ways. In the present embodiment, the chambers are as bores 104 executed. Without limiting the generality, more than two chambers or bores can also be provided, each of which opens into the contact area on one side and into line connections on the other side. In a further, not shown embodiment, the openings 105 drilling 104 in the contact area 103 be at least partially connected via an example annular channel in the contact surface with each other.
  • The holes 104 are over the line connections 106 and over hose lines 107 connected to means for generating a negative pressure, in this embodiment as a vacuum pump 108 are executed.
  • The functional principle of a fixation of the positioning device on a tissue surface 202 is in 2 shown. A tissue to be irradiated 201 is located on or immediately below a tissue surface 202a , The ring 101 becomes so on the tissue surface 202 positioned it around the tissue to be irradiated 201 extends around, with the openings 105 drilling 104 through the tissue surface 202b are closed. With correct positioning of the ring 101 is the tissue to be irradiated 201 in the area of the receiving opening 102 of the ring 101 , With the help of (in 2 not shown) vacuum pump 108 Subsequently, a negative pressure is generated, through which the ring 101 to the tissue to be irradiated 201 surrounding tissue surface 202b is sucked. This creates a normal force between the contact surface 103 of the ring 101 and the one with the contact surface 103 in contact with the tissue surface 202b , so that adhesion of the ring 101 on the tissue surface 202 is improved. By the defined, in this embodiment, planar shape of the contact surface 103 becomes the tissue surface 202b under the ring in one to the shape of the contact surface 103 adjusted position.
  • This also indicates the tissue surface 202a in the area of the receiving opening 102 of the ring 101 above the tissue to be irradiated 201 a defined, through the contact surface 103 of the ring 101 certain form. As will be explained in more detail below, then the X-ray source or an applicator of an X-ray source after insertion of the same can be in the receiving opening 102 of the ring 101 relative to the tissue surface 202 align.
  • In the 3 to 5 is a second embodiment of a positioning device according to the invention shown as a ring 301 with a receiving opening 302 and a contact surface 303 is designed. In the ring 301 are holes 304 introduced, via line connections 306 and hose lines 307 with a not shown in the figures vacuum pump in connection. From the in the 1 and 2 illustrated embodiment, the second embodiment of the invention differs in that along an outer edge of the contact surface 303 a first sealing device in the form of a first rubber lip 309 is arranged. At the transition from the contact surface 303 to the inner contour of the receiving opening 302 a second sealing device is mounted, which in this embodiment as a second rubber lip 310 is executed. In other embodiments, not shown, the first sealing device and / or the second sealing device may also be designed as bellows or in general as any other means for airtight sealing of the space between the contact surface and the tissue surface relative to the environment.
  • Through the contact surface 303 , the first rubber lip 309 and the second rubber lip 310 is a chamber 312 formed at one of the contact surface 303 opposite side an opening 311 passing through the free ends of the first rubber lip 309 and the second rubber lip 310 is limited. Out 4 it can be seen that the opening 311 after positioning the ring 301 on the tissue surface 202 around the tissue to be irradiated through the tissue surface 202b is closed. As a result, a volume is formed by the contact surface 303 , the first rubber lip 309 , the second rubber lip 310 as well as the tissue surface 202b limited and over the holes 304 as well as the hose lines 307 connected to the vacuum pump. With the help of the vacuum pump, the air is sucked out of the volume, so that the contact surface 303 of the ring 301 to the tissue surface 202b is pressed ( 5 ). This will make the ring 301 as in the first embodiment of the tissue surface 202b pulled in, and there is a normal force between the contact surface 303 of the ring 301 and the one with the contact surface 303 in contact with the tissue surface 202b through which the adhesion of the ring 301 on the tissue surface 202 is improved. Due to the defined shape of the contact surface 303 becomes the tissue surface 202b under the ring in one to the shape of the contact surface 303 adapted position, so that an X-ray source or an applicator of an X-ray source after insertion into the receiving opening 302 relative to the tissue surface 202 can be aligned. An advantage of the second embodiment is that the sealing of the contact surface 303 With suitable sealing devices, a larger normal force can be generated between the contact surface and the tissue surface, whereby the adhesion of the positioning device is improved on the tissue surface. In addition, by the vacuum pump also possibly occurring during the positioning wound fluid from the chamber 312 be removed.
  • In 6 is the positioning device in interaction with a miniaturized radiotherapy device 600 shown. The radiotherapy device 600 includes a low energy X-ray source 601 for generating soft X-radiation as well as an applicator 620 ,
  • The X-ray source 601 has an electron source 603 for generating an electron beam 604 on. By means of electromagnetic deflection elements 605 , For example, coils, the path of the electron beam can be influenced. The x-ray source further comprises a probe element 606 with a free end 607 in which a so-called target 608 is arranged, which consists for example of gold. Upon impact of the electron beam 604 on the target 608 The electrons are greatly delayed, whereby X-ray radiation is released, which is largely discharged undirected. The impact location of the electron beam on the target can be determined by means of the electromagnetic deflection elements 605 adjust, whereby the radiation characteristic of the X-ray source can be influenced. The generated X-ray radiation has a radiation energy of 0 to a maximum of 100 keV, in particular from 0 to 50 keV.
  • The X-ray source 601 also includes a foot area 609 on which an applicator 620 the radiotherapy device 600 is fastened.
  • A free end 621 of the applicator 620 has a different mass distribution in the radial direction, so that by the impact of the electron beam 604 on the target 608 generated X-ray radiation is attenuated to different extents depending on the emission direction. This allows the emission characteristic of the X-ray radiation from the applicator 620 influence out. By a suitable choice of the mass distribution is an at least approximately constant radiation intensity in an exit plane 622 of the applicator 620 adjustable.
  • The applicator 620 is cylindrical, wherein an outer contour of the cylinder in size and shape to the inner contour of the receiving opening 102 the positioning device 100 is adjusted. After the positioning device is fixed on the tissue surface as described above, the applicator can 620 in the receiving opening 102 the positioning device 100 introduced and along the longitudinal axis of the applicator or the longitudinal axis of the positioning device on the tissue to be irradiated 201 positioned become. Optionally, the applicator can be used first 620 in the receiving opening 102 and then the X-ray source 601 in the applicator 620 be introduced, or the applicator 620 is first at the X-ray source 601 attached and both together are then inserted into the positioning device.
  • The positioning device is securely fixed on the tissue surface with the help of the vacuum pump. By adapted to the inner contour of the receiving opening outer contour of the applicator slipping or displacement of the applicator is largely prevented parallel to the tissue surface or the contact surface of the positioning device. The applicator can be safely positioned on the surface to be irradiated, so that the X-ray source (and in particular the target 608 , in which the X-radiation is formed,) is oriented in a defined manner relative to the tissue surface to be irradiated.
  • In an embodiment of the invention which is not shown, the positioning device comprises a fastening device for fastening the applicator or the X-ray source to the positioning device, by means of which the applicator or the X-ray source is also displaced in a direction perpendicular to the position after the applicator or X-ray source has been inserted into the positioning device Contact surface is at least largely suppressed. Thus, the applicator is fixed in all three spatial directions in the positioning device, so that the distance between the target and the tissue surface is set safe and well-defined.
  • In 7 is a first embodiment of an applicator according to the invention 720 with a positioning device 701 shown. The main difference to the in 6 illustrated embodiment of the invention is that the positioning device 701 and the applicator 720 are made in one piece. For irradiation, the applicator 720 with the positioning device 701 on the tissue to be irradiated 201 placed. In the positioning devices are chambers in the form of holes 704 present, on one side in openings 705 in a contact area 703 of the applicator 720 open out. With the help of in 7 Vacuum pump, not shown, is a negative pressure in the holes 704 producible, by which the applicator to the tissue surface 202 is sucked, so that the tissue surface is impressed on the shape of the contact surface. This embodiment is characterized in that fewer operations for positioning the X-ray source and especially of the target 708 relative to the tissue surface 202 are required, and that an accumulation of tissue fluid or air under the applicator 720 is largely avoided during the positioning process.
  • In 8th is another embodiment of an applicator according to the invention 820 with positioning device 801 shown. The applicator differs from the previously discussed embodiment in that a first sealing device in the form of a rubber lip 809 present is the contact surface 803 of the applicator 820 encloses. Through the contact surface 803 and the circumferential rubber lip 809 is a chamber 812 formed at one of the contact surface 803 opposite side has an opening through the free end of the rubber lip 809 is limited. Out 8th It can be seen that the opening after positioning the applicator 820 on the tissue surface 202 is closed by the tissue surface. As a result, a volume is formed by the contact surface 803 , the rubber lip 809 and the tissue surface 202 limited and over the holes 804 as well as the hose lines 807 is connected to the (not shown) vacuum pump. With the help of the vacuum pump, the air is sucked out of this volume, so that the contact surface 803 of the applicator 820 to the tissue surface 202 is pressed ( 9 ). This will cause the applicator to touch the tissue surface 202 pulled in, and there is a normal force between the contact surface 803 and the tissue surface in contact with the contact surface 202 , by which the adhesion of the applicator on the tissue surface 202 is improved. Due to the defined shape of the contact surface 803 becomes the tissue surface 202 under the applicator the shape of the contact surface 803 imprinted so that the x-ray source relative to the tissue surface 202 is aligned. An advantage of this embodiment compared to the previously described embodiment is that the sealing of the contact surface 803 With a suitable sealing device, a larger normal force between the contact surface and the tissue surface can be generated, whereby the adhesion of the applicator on the tissue surface is further improved. In addition, by the vacuum pump also possibly occurring during the positioning wound fluid from the chamber 812 be removed. As a result, the risk of mistreatment is reduced, which can be caused by wound fluid between the applicator and the tissue to be irradiated, since wound fluid at this point would lead to an uncontrolled local attenuation of the X-radiation.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • WO 2013/024086 A1 [0004]
    • DE 102009058581 A1 [0005]

Claims (9)

  1. Positioning device for positioning an X-ray source ( 601 ) relative to a tissue surface ( 202 ), with a dimensionally stable base body ( 101 . 301 . 701 . 801 ), which has a contact surface ( 103 . 303 . 703 . 803 ) which is in contact with the tissue surface ( 202 ), characterized in that the positioning device comprises a chamber ( 104 . 304 . 704 . 812 ) with an opening ( 105 . 311 . 705 ), wherein the opening ( 105 . 311 . 705 ) is arranged in the positioning device such that it can be closed by applying the positioning device to the tissue surface; and that means for generating a negative pressure ( 108 ), with the aid of which at the tissue surface ( 202 ) applied positioning a negative pressure in the chamber ( 104 . 304 . 704 . 812 ) is producible through which the tissue surface ( 202 ) to the contact surface ( 103 . 303 . 703 . 803 ) is pressable, so that a normal force between the contact surface ( 103 . 303 . 703 . 803 ) and the tissue surface is reinforced.
  2. Positioning device according to claim 1, characterized in that the chamber ( 104 . 704 ) at least partially in the body ( 101 . 701 ) is formed, wherein the opening ( 105 . 705 ) in a plane of the contact surface ( 103 . 703 ) is arranged.
  3. Positioning device according to claim 1, characterized in that on the base body ( 301 . 801 ) a first sealing device ( 309 . 809 ) is formed, the contact surface ( 303 . 803 ), the chamber ( 312 . 812 ) through the contact surface ( 303 . 803 ) and the first sealing device ( 309 . 809 ) and the opening ( 311 . 811 ) of the chamber is defined by the first sealing device.
  4. Positioning device according to one of the preceding claims, characterized in that the positioning device comprises a fastening device ( 102 . 302 ) for fixing an X-ray source or an applicator ( 620 ) of the X-ray source, which is designed in such a way that, when the positioning device is fastened, a displacement of the X-ray source ( 601 ) in a plane parallel to the contact surface ( 103 . 303 ) is at least largely suppressed.
  5. Positioning device according to claim 4, characterized in that the fastening device is designed such that when the X-ray source is fixed a displacement of the X-ray source ( 601 ) perpendicular to the contact surface ( 103 . 303 ) is at least largely suppressed.
  6. Positioning device according to one of the preceding claims, characterized in that the basic body ( 101 . 301 ) of the positioning device is designed as a ring, wherein the contact surface ( 103 . 303 ) is formed by an upper side of the ring, and wherein the ring has an inner contour which matches an outer contour of a region of the X-ray source or an applicator ( 620 ) of the X-ray source ( 601 ) is adjusted.
  7. Positioning device according to claim 6, characterized in that at a transition from the contact surface to the inner contour of a second sealing device ( 310 ) is arranged.
  8. An applicator for an X-ray source, characterized in that the applicator ( 720 . 820 ) comprises a positioning device according to one of claims 1 to 7.
  9. Radiotherapy device with an X-ray source, characterized in that the radiotherapy device comprises a positioning device according to one of claims 1 to 7 for positioning an X-ray source relative to a tissue surface.
DE102013015108.2A 2013-09-12 2013-09-12 Positioning device for positioning an x-ray source Withdrawn DE102013015108A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070129592A1 (en) * 2005-11-18 2007-06-07 Senorx, Inc. Treatment of a body cavity
US20080300443A1 (en) * 2007-06-04 2008-12-04 Lovoi Paul A Method for modifying skin distance from a brachytherapy balloon applicator
US20090264968A1 (en) * 2008-04-18 2009-10-22 Varian Medical System, Inc. Breast treatment machine
DE102009058581A1 (en) 2009-12-17 2011-06-22 Carl Zeiss Surgical GmbH, 73447 Applicator for radiation therapy, fastening device as well as radiation therapy device
WO2013024086A1 (en) 2011-08-16 2013-02-21 Carl Zeiss Meditec Ag Method and apparatus for generating x-ray radiation
US20130072930A1 (en) * 2011-08-01 2013-03-21 Yoav Ben-Haim Applicator and Tissue Interface Module for Dermatological Device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070129592A1 (en) * 2005-11-18 2007-06-07 Senorx, Inc. Treatment of a body cavity
US20080300443A1 (en) * 2007-06-04 2008-12-04 Lovoi Paul A Method for modifying skin distance from a brachytherapy balloon applicator
US20090264968A1 (en) * 2008-04-18 2009-10-22 Varian Medical System, Inc. Breast treatment machine
DE102009058581A1 (en) 2009-12-17 2011-06-22 Carl Zeiss Surgical GmbH, 73447 Applicator for radiation therapy, fastening device as well as radiation therapy device
US20130072930A1 (en) * 2011-08-01 2013-03-21 Yoav Ben-Haim Applicator and Tissue Interface Module for Dermatological Device
WO2013024086A1 (en) 2011-08-16 2013-02-21 Carl Zeiss Meditec Ag Method and apparatus for generating x-ray radiation

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