Apparatus for securing a medical imaging device to a body

• US 5,967,983 A
• Filed: 10/31/1995
• Issued: 10/19/1999
• Est. Priority Date: 10/31/1995
• Status: Expired due to Term

• Current Assignee: Digirad Corporation
• Original Assignee: Digirad Corporation
• Inventors: Ashburn, William
• Primary Examiner(s): Casler, Brian L.
• Application Number:
  US08/550,882
• Time in Patent Office: 1,449 Days
• Field of Search: 128/653.1, 128/897, 128/654, 128/659, 250/370.09, 250/370.08, 250/370.1, 250/370.11, 250/522.1, 250/491.1, 378/62, 378/63, 378/68, 378/69, 378/193-198, 600/407, 600/430, 600/436
• US Class Current: 600/436
• CPC Class Codes: A61B 6/4258 for detecting non x-ray radiation, e.g. gamma radiation A61B6/037 takes precedence
• CPC Class Codes: A61B 6/447 the source unit or the detector unit being mounted to counterpoise or springs

Abstract

A system and apparatus for obtaining medical quality images of a body under stress, such as a body in motion, are disclosed. The apparatus preferably consists of a harness into which the imaging device may be removably placed and securely positioned with respect to a body part, even when the body is in motion. The system preferably further comprises a small, light weight gamma camera. The imaging device is preferably supported by a mechanism which is separate from the harness. In each embodiment of the invention, movement of the imaging device relative to the body is minimized, yet the body is permitted to move relatively freely. Methods for use of the apparatus and system to obtain medical images of a body are also described.

Claims

1. A system for obtaining medical images of a body in motion comprising:

(a) a harness for removably securing and supporting a gamma camera on a body in motion so that the body may move freely yet movement of the gamma camera relative to the body is minimized; and

,

(b) a gamma camera adapted to be secured against the body by the harness, wherein the gamma camera has dimensions of less than about 16 inches on each side and includes a collimator, an imaging detector that produces electrical pulses of amplitude indicative of a magnitude of radiation absorbed from photons of x-ray or gamma-ray radiation, and means for processing the electrical pulses.

2. The system according to claim 1 wherein the harness is adjustable to secure the device over the left ventricle of the body'"'"'s heart.

3. An apparatus comprising:

(a) a harness for removably securing a gamma camera on a body so that movement of the gamma camera relative to the body is minimized, wherein the gamma camera includes a collimator, an imaging detector that produces electrical pulses of amplitude indicative of a magnitude of radiation absorbed from photons of x-ray or gamma-ray radiation, and means for processing the electrical pulses; and

,

(b) a mechanism separate from the harness for supporting the gamma camera in the harness, wherein the mechanism for supporting the gamma camera is capable of supporting substantially all of the weight of the gamma camera and permits the body to move freely.

4. The apparatus according to claim 3 wherein the harness is attachable to the body by adjustable straps.

5. The apparatus according to claim 3 wherein the harness is attachable to the body by an adjustable belt which is extendable around the girth of the body.

6. The apparatus according to claim 3 further comprising exercise equipment for placing the body under physical stress.

7. The apparatus according to claim 3 wherein the harness is adjustable to place the device over the left ventricle of the body'"'"'s heart.

8. An apparatus for securing a medical imaging device to a mammalian body comprising:

(a) a harness for removably securing an imaging device on a body so that movement of the device relative to the body is minimized; and

,

(b) a mechanism separate from the harness for supporting the imaging device when placed into the harness,

wherein the mechanism for supporting the imaging device comprises a stand and a bar pivotably mounted thereon, wherein further the bar has a proximal end attached to the harness such that the mechanism is capable of supporting substantially all of the weight of the imaging device and permits the body to move freely.

9. The apparatus according to claim 8 wherein the bar is pivotable to about 45°

from vertical at the proximal end.

10. A method for obtaining medical images of a part of a body from which such images may be obtained, comprising:

(a) securing a gamma camera in a harness removably attached to a body, wherein the gamma camera has dimensions of no more than about 16 inches on each side and includes a collimator, an imaging detector that produces electrical pulses of amplitude indicative of a magnitude of radiation absorbed from photons of x-ray or gamma-ray radiation, and means for processing the electrical pulses;

(b) adjusting the harness so the gamma camera is positioned over the body part to be imaged;

(c) allowing the body to move freely; and

,

(d) obtaining images of the body part to be imaged.

11. A method according to claim 10 wherein the body part to be imaged is the heart and the imaging device is securely positioned over the left ventricle of the heart.

12. A method according to claim 11 wherein the body is placed under physical stress while the images are obtained.

13. A method for obtaining medical images of a part of a body from which such images may be obtained, comprising:

(a) securing an imaging device comprising a gamma camera in a harness removably attached to a body, wherein the gamma camera has dimensions of no more than about 16 inches on each side and includes a collimator, an imaging detector that produces electrical pulses of amplitude indicative of a magnitude of radiation absorbed from photons of x-ray or gamma-ray radiation, and means for processing the electrical pulses;

(b) supporting the imaging device in the harness with a mechanism separate from the harness for providing such support, wherein the mechanism for providing support is capable of supporting substantially all of the weight of the imaging device;

(c) adjusting the harness so the gamma camera is positioned over the body part to be imaged;

(d) allowing the body to move freely; and

,

(e) obtaining images of the body part to be imaged.

14. A method according to claim 13 wherein the body part to be imaged is the heart and the imaging device is securely positioned over the left ventricle of the heart.

15. A method according to claim 14 wherein the body is placed under physical stress while the images are obtained.