Gamma camera with an improved patient carrier bed

• US 5,780,855 A
• Filed: 09/04/1996
• Issued: 07/14/1998
• Est. Priority Date: 09/08/1995
• Status: Expired due to Fees

• Current Assignee: SMV Enterprises Co.
• Original Assignee: SMV International, Inc.
• Inventors: Mercier, Gerard, Nguyen, Quang Trung, Pare, Christian Pierre
• Primary Examiner(s): Hannaher, Constantine
• Application Number:
  US08/706,458
• Time in Patent Office: 678 Days
• Field of Search: 250/363.05, 250/363.04, 250/363.02, 378/209
• US Class Current: 250/363.02
• CPC Class Codes: A61B 6/0442 made of non-metallic materials

Abstract

A gamma camera equipped with at least two radiation detectors inclined in relation to each other and a patient-carrier bed including a platform which includes a window that is more transparent to radiation than the rest of the platform. The platform includes two parts defining the window therebetween and connected to each other by a lateral arch.

Claims

1. A gamma camera equipped with at least two radiation detectors inclined in relation to each other and a patient-carrier bed including a platform which includes a window more transparent to radiation than the rest of the platform, wherein the platform includes two parts defining the window therebetween and connected to each other by a lateral arch, the arch having a curvature with a change of curvature in relation to a curvature of the platform, the change of curvature occurring at a defined distance from an edge of the platform.

2. The gamma camera according to claim 1, wherein the arch extends beyond a lateral edge of the patient-carrier bed.

3. The gamma camera according to claim 1, wherein the arch has multiple angles in relation to a plane of the patient-carrier bed.

4. The gamma camera according to claim 1, wherein the arch is removable.

5. The gamma camera according to claim 1, wherein the window includes a sheet made of a material more transparent to gamma radiation than the rest of the platform.

6. The gamma camera in according to claim 5, wherein the platform includes a tensioner to tension the sheet in the window.

7. The gamma camera in according to claim 5, wherein the sheet is held on a first removable frame.

8. The gamma camera according to claim 1, wherein the window includes a removable separator made of a metal not transparent to radiation, the separator being positioned in a plane perpendicular to a plane of the platform of the patient-carrier bed.

9. The gamma camera according to claim 8, wherein the patient-carrier bed includes a second removable frame that is adapted to conduct mammographies, the second removable frame having two holes of sufficient dimensions to each let a breast pass therethrough without deforming the breast.

10. The gamma camera according to claim 1, wherein the platform includes a removable reinforcement to be placed on an edge of the window to stiffen the window when installing a patient.

11. The gamma camera according to claim 1, wherein the platform is removable.

12. A gamma camera equipped with at least two radiation detectors inclined in relation to each other and a patient-carrier bed including a platform which includes a window more transparent to radiation than the rest of the platform, wherein the platform includes two parts defining the window therebetween and connected to each other by a lateral arch, the window including a sheet made of a material more transparent to gamma radiation than the rest of the platform, the platform including a tensioner to tension the sheet in the window.

13. A gamma camera equipped with at least two radiation detectors inclined in relation to each other and a patient-carrier bed including a platform which includes a window more transparent to radiation than the rest of the platform, wherein the platform includes two parts defining the window therebetween and connected to each other by a lateral arch, the window including a sheet made of a material more transparent to gamma radiation than the rest of the platform, the sheet being held on a first removable frame.

14. A gamma camera equipped with at least two radiation detectors inclined in relation to each other and a patient-carrier bed including a platform which includes a window more transparent to radiation than the rest of the platform, wherein the platform includes two parts defining the window therebetween and connected to each other by a lateral arch, the window including a removable separator made of a metal not transparent to radiation, the separator being positioned in a plane perpendicular to a plane of the platform of the patient-carrier bed.

15. The gamma camera according to claim 14, wherein the patient-carrier bed includes a second removable frame that is adapted to conduct mammographies, the second removable frame having two holes of sufficient dimensions to each let a breast pass therethrough without deforming the breast.

16. A gamma camera equipped with at least two radiation detectors inclined in relation to each other and a patient-carrier bed including a platform which includes a window more transparent to radiation than the rest of the platform, wherein the platform includes two parts defining the window therebetween and connected to each other by a lateral arch, the platform including a removable reinforcement to be placed on an edge of the window to stiffen the window when installing a patient.