EP1991992A2 - Systeme de protection contre les radiations - Google Patents

Systeme de protection contre les radiations

Info

Publication number
EP1991992A2
EP1991992A2 EP07752805A EP07752805A EP1991992A2 EP 1991992 A2 EP1991992 A2 EP 1991992A2 EP 07752805 A EP07752805 A EP 07752805A EP 07752805 A EP07752805 A EP 07752805A EP 1991992 A2 EP1991992 A2 EP 1991992A2
Authority
EP
European Patent Office
Prior art keywords
set forth
radiation system
radiation
rods
inner frame
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Withdrawn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
EP07752805A
Other languages
German (de)
English (en)
Other versions
EP1991992A4 (fr
Inventor
Mark A. Fox
James A. Goldstein
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1991992A2 publication Critical patent/EP1991992A2/fr
Publication of EP1991992A4 publication Critical patent/EP1991992A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
    • G21F3/02—Clothing
    • G21F3/03—Aprons
    • 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
    • A61B6/10—Safety means specially adapted therefor
    • A61B6/107—Protection against radiation, e.g. shielding

Definitions

  • This invention generally relates to radiation protection, and more particularly, to a radiation protection system for protecting medical personnel during radiographic procedures.
  • Radiographic equipment e.g., x-ray equipment
  • radiographic equipment is used by cardiologists when positioning heart catheters in patients.
  • Many procedures such as these require medical personnel to be in direct contact with the patient, thereby preventing the personnel from being in a separate room and potentially exposing the medical personnel to radiation.
  • radiation shields are used during radiographic procedures to reduce radiation exposure.
  • Radiation shields typically are constructed of materials such as lead that significantly reduce the transmission of radiation.
  • some shields include lead plates mounted on stands that may be adjusted to position the plates between the medical personnel and sources of radiation. Despite the use of these shields, medical personnel are still exposed to radiation. Exposure comes from many radiation sources other than the primary source. For example, a significant secondary radiation source is radiation transmitted through the patient to the medical personnel.
  • the present invention relates to a radiation protection system for protecting medical personnel from radiation being applied from a radiation source to a patient positioned on a table.
  • the system comprises a shield for positioning above the table.
  • the shield includes an inner frame sized and shaped for receiving the patient when the patient is positioned on the table, and a plurality of rods extending outward from the inner frame.
  • the shield also has an outer frame surrounding said inner frame and connected to said plurality of rods, and a radiopaque flexible panel attached to said rods.
  • FIG. 1 is a perspective of a radiation protection system of a first embodiment of the present invention
  • FIG. 2 is a perspective of a portion of a radiation protection system of a second embodiment of the present invention shown with panels removed;
  • FIG. 3 is a perspective of the radiation protection system of the second embodiment shown in a collapsed configuration
  • FIG. 4 is a perspective of the radiation protection system shown in Fig. 1 shown with a radiation source positioned for a patient groin shot;
  • FIG. 5 is a perspective of the radiation protection system shown in Fig. 1 shown with a radiation source tilted caudal and laterally;
  • Fig. 6 is a perspective of the radiation protection system shown in Fig. 1 shown with a radiation source tilted caudal;
  • Fig. 7 is an alternate perspective of the radiation protection system shown in Fig. 1 with the system stored away from other equipment;
  • Fig. 8 is a perspective of a lift of the first embodiment;
  • FIG. 9 is a perspective of a lift of an alternative embodiment
  • FIG. 10 is a detail of the system shown in Fig. 1;
  • FIG. 11 is a perspective of a system of a third embodiment.
  • Fig. 12 is a perspective of a system of a fourth embodiment.
  • a radiation protection system of one embodiment of the present invention is designated in its entirety by the reference numeral 20.
  • the system 20 comprises a shield, generally designated by 22, including flexible panels 24 and a visually transparent window 26, both of which have low radiation transmissivity, mounted on a frame 28.
  • the shield 22 is suspended by a lift, generally designated by 30 in Fig. 8, mounted on an overhead track 32 positioned above a table 34, a radiation source 36 (Fig. 2), and radiographic monitoring equipment 38.
  • the track 32, table 34, source 36 and equipment 38 are all conventional and will not be described in further detail.
  • Fig. 2 illustrates an alternate embodiment of the frame 50 with the flexible panels 24 removed for clarity.
  • the frame 50 of the alternative embodiment is similar to the frame 28 of the previous embodiment except that it folds for storage.
  • the frame 50 includes hinges 52 which permit the frame to fold to a collapsed position as shown in Fig. 3 for storage.
  • the frame 50 includes lower support rails 54 extending inward from the sides of the frame toward the table 34.
  • the rails 54 extend inward to an inner frame 56 which extends over the table 34 and partially surrounds the patient as will be explained in further detail below.
  • one of the rails 54 and frame 56 are connected to the table 34 by a link 58 so the shield 22 moves with the table.
  • the frame 50, rails 54, and inner frame 56 may be made of other materials without departing from the scope of the present invention, in one embodiment they are made from stainless steel tubing or another suitable material.
  • Telescoping rods or struts 60 extend between the frame 50 and the window 26. Additional telescoping rods or struts 62 extend between the frame 50 and the inner frame 54. Although different numbers of rods 60, 62 may be used without departing from the scope of the present invention, in one embodiment the shield 22 has six upper rods 60 and four lower rods 62 as shown.
  • the flexible panels 24 are suspended from the rods 60, 62. Although the panels 24 may be made of other materials without departing from the scope of the present invention, in one embodiment the panels include lead sheets wrapped in vinyl covers.
  • the panels 24 may be attached to the rods using any suitable fasteners such as hook and loop fasteners, screws, adhesives, zippers, or Velcro fasteners.
  • Velcro is a federally registered trademark of Velcro Industries B.V.
  • the rods 60, 62 may include internal rotational and linear bearings or bushings (not shown) to reduce friction and decrease resistance to movement.
  • a flexible interface 70 is fastened across the inner frame 56 to cover an opening between the inner frame and patient.
  • Lead blankets 72 are positioned over the patient.
  • the interface 70 and lead blankets 72 reduce radiation from being transmitted to the medical personnel through the patient.
  • a lead skirt 74 is fastened to the lower rail 54 of the frame 50 and to the table 34 to reduce radiation traveling beneath the shield 22 to the medical personnel.
  • the skirt 74 extends substantially to the floor.
  • the skirt 74 extends below the table 34.
  • the interface 70, blankets 72 and skirt 74 may be made of other materials without departing from the scope of the present invention, in one embodiment they include lead sheets wrapped in vinyl covers similar to the construction of the panels 24.
  • the interface 70, blankets 72 and skirt 74 may be attached to the shield 22 and each other using any suitable fasteners such as hook and loop fasteners, screws, adhesives, or Velcro fasteners.
  • the system 20 provides a complete radiation barrier between the radiation source 36 and medical personnel, as well as between the patient and the medical personnel.
  • the system 20 also blocks all other substantial secondary sources of radiation. In fact, it is believed that the system 20 can block more than 99 % of all radiation that would otherwise reach the medical personnel, thereby eliminating the need for heavy protective clothing.
  • the inner frame 56 is pivotally mounted on the rails 54 and the ends of the rods 62 are pivotally mounted on the frame 50 and the inner frame so the inner frame is free to pivot about the rails.
  • the window 24 is suspended from a support 80 mounted on linear bearings 82 mounted on the frame 50.
  • the window 24 is connected to the support 80 by a ball joint 84 and the rods 60 are pivotally mounted on the frame 50 and the window so the window is free to tilt in all directions within the frame.
  • the window support 80 may be made of other materials without departing from the scope of the present invention, in one embodiment it is made from stainless steel tubing or another suitable material.
  • the window 24 may be made of other materials without departing from the scope of the present invention, in one embodiment it is made from a leaded acrylic having low radiation transmissivity.
  • the flexibility of the panels 24 and rods 60, 62 as well as the pivoting window 26 and tilting inner frame 56 permit the shield 22 to accommodate large excursions of the radiation source 36 that are required for viewing specific parts of the patient and to prevent damaging the source and equipment 38 if collisions occur.
  • the flexibility of the shield 22 permits the table 34 and source 36 to be positioned for a patient groin shot as shown in Fig. 4, to be positioned so the source is tilted 45 degrees caudal and 45 degrees laterally as shown in Fig. 5, or to be positioned so the source is tilted 45 degrees caudal as shown in Fig. 6.
  • the shield 22 bends out of plane to accommodate the movements of the table 34 and source 36 without unnecessary encroaching into the space where medical personnel stand.
  • the lift 30 is slidably mounted on a carriage 90 which is mounted on a bridge 92 that is slidably suspended between the overhead track 32.
  • the carriage 90 and bridge 92 form an x-y stage which permits the lift 30 to be positioned anywhere within an area defined by the track 32.
  • the system 20 may be moved concurrent with the table 34 or it may be moved to a position remote from the table, source 36 and equipment 38 as shown in Fig. 7 to permit the radiographic equipment to be used without the system 20 or to permit the patient to be positioned onto and removed from the table.
  • the carriage 90 and bridge 92 may include bearings to reduce friction and decrease resistance to movement.
  • the carriage 90 and bridge 92 may be motorized to further increase the ease with which they are moved.
  • the carriage 90 and bridge 92, as well as other moving components may include brakes or detents for maintaining relative positions.
  • a bellows 94 covers the lift 30.
  • Fig. 8 illustrates one embodiment of the lift with the bellows 94 removed.
  • the lift 30 includes linear bearings 100 mounted between the frame 28 and the carriage 90.
  • the lift 30 includes springs 102 biasing the shield 22 upward to neutralize its weight so that it may be easily lifted upward and away from the table 34.
  • the lift 30 has a slight upward force balance so the weight of the shield 22 is not borne by the table 34.
  • the linear bearings are replaced with a scissors mechanism 110.
  • Fig. 10 illustrates one embodiment of the fasteners 120 used to connect the interface 70 to the inner frame 56.
  • the inner frame 56 and the window 26 may include handles 122 allowing medical personnel to grasp the window and inner frame to position these elements more easily.
  • Fig. 10 also shows openings 124 in one embodiment of the blanket 72 for allowing access to the patient while minimizing radiation exposure to medical personnel.
  • the openings 124 may be covered by inserts (not shown) having smaller apertures to further reduce radiation exposure.
  • the frame 50 includes a pivoting wing 130 having a visually transparent window 132 for permitting the medical personnel to view the patient's upper body and the radiation source 36 without exposing the medical personnel to radiation.
  • the window 132 may be made of other materials without departing from the scope of the present invention, in one embodiment it is made from a leaded acrylic having low radiation transmissivity.
  • the skirt 74 may extend below the window 132 to reduce radiation exposure.
  • the shield 22 may include a cover 140 between the window 26 and adjoining the panels 24 to increase the flexibility of the shield while reducing radiation leaks at the interface between the window and panels.
  • a cover 140 is shown in Fig. 1.
  • FIG. 12 Another embodiment shown in Fig. 12 is similar to that shown in Fig. 11 but includes a lower shield assembly, generally designated by 150, that connects to a lower edge of the shield 22.
  • the lower shield assembly 150 includes casters 152 for support the lower assembly and permitting it to move more easily with the shield.
  • the lower assembly 150 may include hinges 152, 154 and telescoping panels 156 so the lower assembly can expand horizontally with the shield and vertically with the table 34 to prevent gapping.
  • the support 80, bearings 82, and ball joint 84 may be eliminated in some embodiments. This is accomplished by increasing the strength of some of the this struts 60 so they are capable of carrying the load of the window 26. As suitable ways of providing the additional strength are well known to those skilled in the art, they will not be described in further detail.
  • a video camera and audio intercom may be mounted on the frame to permit patient communication and observation.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Système de protection contre les radiations destiné à protéger du personnel médical des radiations appliquées à partir d'une source de radiations à un patient positionné sur une table. Le système comprend un écran destiné à être positionné au-dessus de la table et doté d'une armature intérieure dont les dimensions et la forme permettent de recevoir le patient lorsque celui-ci est positionné sur la table, ainsi que d'une pluralité de tiges s'étendant vers l'extérieur à partir de l'armature intérieure. L'écran est également doté d'une armature extérieure entourant l'armature intérieure et reliée à la pluralité de tiges, ainsi que d'un panneau souple radio-opaque fixé aux tiges.
EP07752805.7A 2006-03-09 2007-03-09 Systeme de protection contre les radiations Withdrawn EP1991992A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US68411406A 2006-03-09 2006-03-09
US78126206P 2006-03-10 2006-03-10
PCT/US2007/006129 WO2007103581A2 (fr) 2006-03-09 2007-03-09 Systeme de protection contre les radiations

Publications (2)

Publication Number Publication Date
EP1991992A2 true EP1991992A2 (fr) 2008-11-19
EP1991992A4 EP1991992A4 (fr) 2014-03-19

Family

ID=38475615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07752805.7A Withdrawn EP1991992A4 (fr) 2006-03-09 2007-03-09 Systeme de protection contre les radiations

Country Status (4)

Country Link
EP (1) EP1991992A4 (fr)
AU (1) AU2007223735B2 (fr)
CA (1) CA2644726A1 (fr)
WO (1) WO2007103581A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4648421B2 (ja) * 2008-03-28 2011-03-09 株式会社ジャパン・メデカル・コンサルタント 医療福祉施設における患者用ベッドのパーテーション構造
GB2461569A (en) * 2008-07-04 2010-01-06 Kenex Improved X-ray shield
WO2024079006A1 (fr) * 2022-10-11 2024-04-18 Koninklijke Philips N.V. Système et procédé de positionnement d'écran anti-rayonnement

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581538A (en) * 1983-09-30 1986-04-08 Colonial X-Ray Corporation Radiation shield
US4741414A (en) * 1987-03-13 1988-05-03 Claassen Robert D Lift apparatus for pallets
US5006718A (en) * 1989-07-21 1991-04-09 Lenhart Mark J X-ray shield for X-ray examination table
US4975817A (en) * 1990-03-02 1990-12-04 Schroer Manufacturing Company Locking carriage mechanism for a lamp
US5220175A (en) * 1992-01-22 1993-06-15 Cole Andrew J Portable radiation protection enclosure device
US5379332A (en) * 1992-04-28 1995-01-03 Jacobson; Earl B. Launderable and replaceable lead blanket cover system
US5523581A (en) * 1994-09-23 1996-06-04 Wit, Inc. Slipcover for radiation shields
US5881470A (en) * 1996-08-21 1999-03-16 Nearfield Systems Incorporated Vertical tower for a two-axis measurement system
US6278125B1 (en) * 1998-11-23 2001-08-21 Loctite Corporation Shielded radiation assembly
JP2000167073A (ja) * 1998-12-08 2000-06-20 Fukuyama Kenkosha:Kk Ｘ線防護パネル
AU5308700A (en) * 1999-06-01 2000-12-18 Cleveland Clinic Foundation, The Radiation shield
US6325538B1 (en) * 2000-03-17 2001-12-04 Christian M. Heesch Radiation field isolator apparatus
IT1315967B1 (it) * 2000-07-19 2003-03-26 Sisti Lighting S P A De Perfezionamento in una apparecchiatura di sollevamento, in particolare per attrezzature di illuminazione e non, per studi di ripresa.
US6448571B1 (en) * 2000-08-15 2002-09-10 James A. Goldstein Radiation protection system
FR2838862B1 (fr) * 2002-04-17 2004-09-10 Lemer Pax Paravent de protection contre les emissions de rayonnements ionisants
US7057194B2 (en) * 2004-04-07 2006-06-06 Eco Cath-Lab Systems, Inc. Radiation barrier

Also Published As

Publication number Publication date
AU2007223735B2 (en) 2011-08-18
WO2007103581A2 (fr) 2007-09-13
CA2644726A1 (fr) 2007-09-13
EP1991992A4 (fr) 2014-03-19
AU2007223735A1 (en) 2007-09-13
WO2007103581A3 (fr) 2008-04-17

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