WO2000010461A1 - Image intensifier reticle system - Google Patents
Image intensifier reticle system Download PDFInfo
- Publication number
- WO2000010461A1 WO2000010461A1 PCT/US1999/012609 US9912609W WO0010461A1 WO 2000010461 A1 WO2000010461 A1 WO 2000010461A1 US 9912609 W US9912609 W US 9912609W WO 0010461 A1 WO0010461 A1 WO 0010461A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arm
- plane
- image intensifier
- rotation
- aligning
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/547—Control of apparatus or devices for radiation diagnosis involving tracking of position of the device or parts of the device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/12—Devices for detecting or locating foreign bodies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
Definitions
- the present invention relates to C-arm surgical image intensifiers.
- the present invention provides a reticle for attachment to an image intensifier and a method of use which allows a standard C-arm image intensifier to be easily aligned to rotate in a selected plane about any desired point in a human body.
- the present invention can be used to align an image intensifier to rotate in any plane through the human body, wherein the plane is preferably defined by viewing bones or other radio-opaque structures in the body with the image intensifier system.
- the present invention can be aligned to rotate the C-arm in any desired plane passing through a human body, the present invention is ideally suited to align a conventional C-arm image intensifier to rotate in a plane passing between two adjacent vertebrae in a patient's spine.
- the present invention is not so limited to alignment of C-arm image intensifiers only with respect to intervertebral planes .
- the image intensifier can be rotated about a selected point to provide both lateral and anterior-posterior views through the patient while remaining in the selected intervertebral plane .
- Fig. 1 is a rear elevation view of a prone lying patient with an image intensifier taking a lateral view through the patient .
- Fig. 2 is a view corresponding to Fig. 1, but with the image intensifier taking an anterior-posterior view through the patient .
- Fig. 3 is a side elevation view corresponding to Fig. 1.
- Fig. 4 is a view of an image taken by the image intensifier with the image intensifier being positioned as shown in Figs . 1 and 3.
- Fig. 5 is a sectional side elevation view taken along line 5-5 in Fig. 2.
- Fig. 6 is a view of an image taken by the image intensifier with the image intensifier being positioned as shown in Figs . 2 and 5.
- Fig. 7 is an end view of a reticle of the present invention as attached over the receiving end of the image intensifier.
- a patient 10 having a spine 12, head 13 and feet 14 is positioned in a prone lying manner on a radiotransparent table 15.
- a conventional image intensifier 20 having an emitter 22 and a receiver 24 which are together held on opposite sides of the patient by a standard C-arm 26 is positioned as shown in Fig. 1 to generate a lateral radioimage view through the patient .
- C-arm 26 can also be rotated so as to provide an anterior-posterior image through the patient.
- C-arm image intensifier 20 may comprise any standard image intensifier, preferably having the property that rotation 24 of C-arm 26 in the plane of the C-arm, (such as from the orientation in Fig. 1 to that of Fig. 2) , causes the image intensifier to rotate about a fixed point in space equidistant between emitter 22 and a receiver 24.
- C- arm 26 is aligned to rotate in a preferred plane about a desired point in space positioned equidistant between emitter 22 and a receiver 24.
- the desired point in space is disposed within the patient's intervertebral space and the desired plane is an intervertebral plane which passes between adjacent vertebrae, as follows.
- each pair of adjacent vertebrae in the patient's spine will have a different intervertebral plane due to the natural lordosis in the patient's spine.
- spine 12 comprises adjacent vertebrae 17 and 19.
- Each pair of adjacent vertebrae in the spine will each have a unique intervertebral plane passing therethrough.
- intervertebral plane 30 will pass between vertebrae 17 and 19, as shown. Accordingly, considerable adjustment of the image intensifier orientation is required to align it with the selected intervertebral plane.
- the present invention may be used to align C-arm 26 image intensifier 20 with intervertebral plane 30 such that as the image intensifier is moved from the position shown in Fig. 1 to the position shown in Fig. 2, C-arm 26 of image intensifier 20 remains at all times disposed in the intervertebral plane 30, as follows .
- the positioning of the image intensifier 20 to align C-arm 26 with a selected intervertebral plane 30 will require C-arm 26 to be rotated by angle Al to a vertical plane 32.
- the point 34 about which image intensifier 20 is pivoted should preferably be between adjacent vertebrae 17 and 19, (as determined by viewing the lateral image through the patient as shown in Fig. 4 as will be explained) .
- Image intensifier 20 is preferably initially positioned about the patient such that point 34 will be disposed equidistant between emitter 22 and a receiver 24. Accordingly, rotation of C-arm 26 in plane 30 will be about point 34 with point 34 remaining equidistant between emitter 22 and a receiver 24.
- the correct angling of C-arm 26 about point 34 is accomplished as follows.
- reticle 25 which has radiopaque indicia, for example, crosshairs 40 and 42 as shown in Fig. 7. Being radiopaque, crosshairs 40 and 42 will also appear on the image viewed by the system operator.
- C-arm 26 of image intensifier 20 will enable the image of the intersection point of crosshairs 40 and 42 to be positioned between adjacent vertebrae 17 and 19 collinear with point 34 as shown when the C-arm is positioned to take an anterior-posterior view as illustrated in Figs. 2 and 6.
- C-arm 26 can be rotated by oblique angle A2.
- the image intensifier can then be rotated to any position in plane 30 about point 34, (which is also viewable as the intersection point of crosshairs 40 and 42) , including an anterior-posterior orientation as is shown in Figs. 3 and 5, thus aligning C-arm 26 of image intensifier 20 with the intervertebral plane 30.
- image intensifier 20 can then be easily rotated into the position shown in Figs. 2 and 5 with C-arm 26 remaining in plane 30 to take an anterior-posterior image. It is to be understood that alignment of image intensifier 20 with plane 32 can also be accomplished first with the image intensifier positioned to take an anterior- posterior view.
- Fig. 6 shows an illustration of the image intensifier view through adjacent vertebrae 17 and 19 taken along intervertebral plane 30 when the image intensifier is positioned in the orientation shown in Figs. 2 and 5. Subsequently, image intensifier 20 can be easily rotated to take a lateral view while C-arm 26 remains in the selected intervertebral plane 30. Alignment of the image intensifier with the selected intervertebral plane can also be accomplished at positions between lateral and anterior- posterior orientations.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU46744/99A AU4674499A (en) | 1998-06-09 | 1999-06-04 | Image intensifier reticle system |
JP2000565788A JP2002529117A (en) | 1998-06-09 | 1999-06-04 | Image amplifier reticle system |
KR1020007013959A KR20010071658A (en) | 1998-06-09 | 1999-06-04 | Image intensifier reticle system |
EP99930147A EP1093342A4 (en) | 1998-06-09 | 1999-06-04 | Image intensifier reticle system |
CA002334693A CA2334693A1 (en) | 1998-06-09 | 1999-06-04 | Image intensifier reticle system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8866398P | 1998-06-09 | 1998-06-09 | |
US12066399P | 1999-02-19 | 1999-02-19 | |
US60/120,663 | 1999-02-19 | ||
US60/088,663 | 1999-06-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000010461A1 true WO2000010461A1 (en) | 2000-03-02 |
WO2000010461A8 WO2000010461A8 (en) | 2001-07-12 |
Family
ID=26778924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/012609 WO2000010461A1 (en) | 1998-06-09 | 1999-06-04 | Image intensifier reticle system |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA2334693A1 (en) |
WO (1) | WO2000010461A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7600915B2 (en) | 2004-12-01 | 2009-10-13 | Trinity Orthopedics, Llc | Imager based object positioner system and method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4722336A (en) * | 1985-01-25 | 1988-02-02 | Michael Kim | Placement guide |
-
1999
- 1999-06-04 WO PCT/US1999/012609 patent/WO2000010461A1/en not_active Application Discontinuation
- 1999-06-04 CA CA002334693A patent/CA2334693A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4722336A (en) * | 1985-01-25 | 1988-02-02 | Michael Kim | Placement guide |
Non-Patent Citations (1)
Title |
---|
See also references of EP1093342A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7600915B2 (en) | 2004-12-01 | 2009-10-13 | Trinity Orthopedics, Llc | Imager based object positioner system and method |
US8007172B2 (en) | 2004-12-01 | 2011-08-30 | Trinity Orthopedics, Llc | Imager based object positioner system and method |
Also Published As
Publication number | Publication date |
---|---|
WO2000010461A8 (en) | 2001-07-12 |
CA2334693A1 (en) | 2000-03-02 |
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