SEAT ADAPTED FOR USE WITH A MAMMOGRAPHY APPARATUS

Abstract

A seat adapted for use with a mammography apparatus for detecting malignant cells in a breast of a patient, said mammography apparatus comprising an x-ray source and an x-ray detector for imaging the breast, wherein the seat is provided to the mammography apparatus to enable the patient to sit during imaging, and wherein the seat is tiltable between at least two positions, a first position wherein the seat is level with the horizon, and a second position wherein the seat is tilted obliquely sideways with reference to the horizon, and wherein the seat comprises compression means for compressing the breast during x-ray imaging of the breast with the x-ray source and the x-ray detector.

Claims

1. A seat adapted for use with a mammography apparatus for detecting malignant cells in a breast of a patient, the mammography apparatus comprising an x-ray source and an x-ray detector for imaging the breast, wherein the seat is provided to the mammography apparatus to enable the patient to sit during imaging, and wherein the seat is tiltable between at least two positions, a first position wherein the seat is level with the horizon, and a second position wherein the seat is tilted obliquely sideways with reference to the horizon, wherein the seat comprises compression means for compressing the breast during x-ray imaging of the breast with the x-ray source and the x-ray detector.

2. The seat according to claim 1, wherein the compression means comprise a fixed horizontal orientation and are movable to and from each other in a vertical direction for compressing the breast.

3. The seat according to claim 1, wherein the seat is fixable in its position at an angle of about 45 with reference to the horizon to enable a simultaneous compression and imaging of the breast at an angle of about 45 with reference to a longitudinal body axis of the patient for executing a medio lateral oblique screening of the breast.

4. The seat according to claim 1, wherein a backrest of the seat is invariably in a plane that is transversally oriented with reference to the horizon.

5. The seat according to claim 1, wherein the compression means comprises a horizontal presentation table for supporting the breast while the patient is in the seat and while the seat is in either the first position or the second position, or between the first position and the second position.

6. The seat according to claim 1, wherein the seat is provided with supports for the patient that are at least operational in the second position.

7. The seat according to claim 6, wherein, in the second position of the seat, the supports support the patient at least at the ankle, hip, armpit and head, and provide support to the then lowest arm of the patient.

8. The seat according to claim 1, wherein the seat is removable from the mammography apparatus and provided on wheels, preferably omnidirectional wheels.

9. The seat according to claim 1, wherein the seat is a unitary part of the mammography apparatus.

10. The seat according to claim 9, wherein the x-ray source and x-ray detector have a fixed vertical orientation with respect to each other.

11. The seat according to claim 9, wherein the mammography apparatus comprises compression means for compressing the breast during x-ray imaging of the breast with the x-ray source and the x-ray detector.

12. The seat according to claim 1, wherein the seat is provided with a mechanism balancing the forces interacting with the breast of the patient.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0023] The accompanying drawing, which is incorporated into and forms a part of the specification, illustrates an embodiment of the present invention and, together with the description, serves to explain the principles of the invention. The drawing is only for the purpose of illustrating an embodiment of the invention and is not to be construed as limiting the invention. In the drawing:

[0024] FIG. 1 shows a mammography apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0025] In FIG. 1 a C-arm 1 is shown which is applied with a x-ray source 7 in top and x-ray detector 8 at the bottom of the C-arm 1. It further shows in FIG. 1 that a patient is sitting on a seat 2 which is rotatable, and which is shown after it has been turned from a first position wherein the seat 2 is level with the horizon towards a second position wherein the seat is tilted to the side and oblique with reference to the horizon at an angle of about 45 which corresponds to an MLO screening of the breast. The seat 2 can be fixed at this 45 tilted position with reference to the horizon. The seat 2 is further mounted on a telescopic stand 3 to enable its moving up and down for an accurate positioning of the breast. The FIGURE shows further a horizontal presentation table 5 on which the breast which is to be screened can in preparation of the screening be properly displayed for a most accurate and reliable imaging. The presentation table 5 is preferably X-ray transparent.

[0026] On its sides the seat 2 are preferably provided with supports 2 that are arranged on positions corresponding where the patient has the ankle, hip, armpit and head, and provide support to the then lowest arm of the patient.

[0027] In the FIGURE the seat 2 is shown as a separate item with wheels 9. This enables that the seat 2 can be used with any existing mammography apparatus. It is however also possible that the seat 2 is made a unitary or integral part of the mammography apparatus. In that case the conventional C-arm 1 can be simplified in that the x-ray source 7 and the x-ray detector 8 can be realized with a fixed vertical orientation with respect to each other.

[0028] It is remarked that reference 6A in the FIGURE refers to a paddle which is mounted on the C-arm 1, and which forms part of the compression means (together with the presentation table 5 for compressing the breast during x-ray imaging). It is also possible to embody the paddle on the seat 2 as is depicted in the FIGURE with reference 6B. 6A and 6B are therefore alternative options for placing the paddle. Preferably at all times the presentation table 5 of the seat 2, optionally completed with the paddle 6A, 6B on either the seat 2 or forming part of the mammography apparatus 1, is part of the compression means 5, 6A, 6B for compressing the breast during x-ray imaging of the breast with the x-ray source 7 and the x-ray detector 8.

[0029] In the embodiment wherein the compression means 5, 6B are entirely placed on the seat 2, that is when also the paddle 6B is mounted on the seat 2, the compression means 5, 6B have a fixed horizontal orientation and are movable to and from each other in a vertical direction for compressing the breast.

[0030] As already mentioned above the seat 2 is fixable at an angle of about 45 with reference to the horizon to enable a simultaneous compression and imaging of the breast at an angle of about 45 with reference to a longitudinal body axis of the patient for executing a medio lateral oblique screening of the breast. Furthermore, the FIGURE shows a backrest behind the back of the patient, and within the scope of the invention this backrest of the seat 2 is invariably in a plane that is transversely oriented with reference to the horizon.

[0031] Although the invention has been discussed in the foregoing with reference to an exemplary embodiment of the mammography apparatus of the invention, the invention is not restricted to this particular embodiment which can be varied in many ways without departing from the invention. The discussed exemplary embodiment shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiment is merely intended to explain the wording of the appended claims without intent to limit the claims to this exemplary embodiment. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using this exemplary embodiment.

[0032] Note that in the specification and claims, about or approximately means within twenty percent (20%) of the numerical amount cited.