Rack, scanning device and CT (Computed Tomography) equipment

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By setting up pressure sensors in the frame of the CT equipment to monitor the deformation of the scanning window, the deformation and safety problems caused by the collision between the patient and the scanning window are solved, and real-time monitoring of the status of the scanning window and timely adoption of protection measures.

CN222899149UActive Publication Date: 2025-05-27SIEMENS SHANGHAI MEDICAL EQUIP LTD

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Patent Information

Application Number: CN202421485596.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-26
Publication Date: 2025-05-27
Estimated Expiration: 2034-06-26

AI Technical Summary

Technical Problem

During the use of CT equipment, the patient may collide with the scanning window, causing the scanning window to deform or damage, which in turn causes harm to the patient.

Method used

A frame is designed including a first housing, a second housing, an annular scanning window and a pressure sensor disposed on the scanning window. The pressure sensor generates an electrical signal when the scanning window is deformed and is used to monitor the status of the scanning window.

Benefits of technology

By monitoring the deformation of the scanning window, staff can take timely protective measures to prevent patients from being injured, and ensure the reliability of the pressure sensor and the accurate diagnosis of CT equipment.

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Abstract

The utility model discloses a rack, a scanning device and CT equipment, and the rack comprises a first housing which is provided with a first through hole; the second shell is arranged opposite to the first shell; the second shell is provided with a second through hole; the section of the scanning window is annular; the two sides of the scanning window are connected with the first shell and the second shell respectively, and the first through hole, the scanning window and the second through hole form a channel; and the pressure sensor is arranged on the scanning window and is used for generating a corresponding electric signal when the scanning window is deformed so as to monitor the state of the scanning window. According to the utility model, deformation monitoring is carried out on the scanning window, so that a worker can know the state of the scanning window, and then corresponding protection measures can be taken in time.

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Description

Technical Field

[0001] The utility model relates to the technical field of CT equipment, and particularly relates to a frame, a scanning device and a CT equipment. Background Art

[0002] With the rapid development of Computed Tomography (CT) technology, CT equipment is more and more widely used in the medical field, especially in clinical practice. As a key component of CT equipment, the frame has a scanning window through which X-rays and positioning lines pass; and the scanning window can prevent patients from contacting the rotating components inside the frame. However, during the use of CT equipment, patients may collide with the scanning window, resulting in deformation of the scanning window and even harm to the patients. Content of the Utility Model

[0003] The purpose of the utility model is to provide a frame, a scanning device and a CT equipment, which can monitor the deformation of the scanning window, so that the staff can know the state of the scanning window, and then can take corresponding protection measures in time.

[0004] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0005] A frame for CT equipment; the frame includes:

[0006] A first housing having a first through hole;

[0007] A second housing disposed opposite to the first housing; and the second housing has a second through hole;

[0008] A scanning window, the cross-section perpendicular to the scanning rotation center of which is annular; both sides of the scanning window are respectively connected to the first housing and the second housing, and the first through hole, the scanning window and the second through hole form a channel; and

[0009] A pressure sensor disposed on the scanning window for generating a corresponding electrical signal when the scanning window is deformed to monitor the state of the scanning window.

[0010] Optionally, the scanning window includes an inner surface facing the channel and an outer surface opposite to the inner surface; the pressure sensor is disposed on the outer surface of the scanning window. This technical solution can prevent patients from contacting the pressure sensor, thereby ensuring the reliability of the pressure sensor and the safety of patients.

[0011] Optionally, when the length of the pressure sensor is less than the perimeter of the scanning window, the number of the pressure sensors is multiple; and the multiple pressure sensors are arranged at intervals along the circumferential direction of the scanning window. This technical solution can comprehensively detect the deformation of the scanning window.

[0012] Optionally, when the length of the pressure sensor is not less than the perimeter of the scanning window, the number of the pressure sensors is at least one; and at least one pressure sensor is arranged around the circumferential direction of the scanning window. This technical solution can comprehensively detect the deformation of the scanning window.

[0013] Optionally, an annular area for X-rays to pass through is provided on the scanning window, and the pressure sensor is located outside the annular area. This technical solution can prevent the X-rays from damaging the pressure sensor, thereby ensuring the stability and reliability of the pressure sensor. This technical solution can also prevent the pressure sensor from interfering with the X-rays, thereby ensuring the accuracy of the diagnosis of the patient's condition.

[0014] Optionally, the pressure sensor converts the pressure into a voltage signal or a current signal. In this technical solution, the deformation of the scanning window can be detected by subsequently processing the voltage signal or the current signal.

[0015] On the other hand, the present utility model also provides a scanning device, including:

[0016] The frame as described above; and

[0017] A detection terminal device, communicatively connected to the pressure sensor, for obtaining the deformation amount of the scanning window according to the electrical signal.

[0018] Optionally, an amplifier is further provided between the pressure sensor and the detection terminal device. This technical solution can improve the accuracy of the calculated deformation amount of the scanning window.

[0019] Optionally, the scanning device further includes: an alarm, communicatively connected to the detection terminal device, for alarming when the deformation amount of the scanning window exceeds a set threshold. This technical solution facilitates the staff to take safety measures in a timely manner.

[0020] On yet another aspect, the present utility model also provides a CT device, including: the scanning device as described above.

[0021] In summary, compared with the prior art, a power supply system provided by the present utility model has the following beneficial effects:

[0022] 1. A frame provided by the present utility model is provided with a pressure sensor on the scanning window. When a patient collides with the first housing, the second housing, or the scanning window, or in other situations where the scanning window is deformed due to force, the pressure sensor can generate corresponding electrical signals to monitor the deformation of the scanning window, enabling the staff to know the state of the scanning window and thus take corresponding protective measures in a timely manner to prevent the patient from being injured.

[0023] 2. In the present utility model, the pressure sensor is arranged on the outer surface of the scanning window to prevent the patient from coming into contact with the pressure sensor, thereby ensuring the reliability of the pressure sensor and the safety of the patient.

[0024] 3. In the present utility model, the scanning window is provided with an annular area for X-rays to pass through, and the pressure sensor is located outside the annular area. This layout can prevent the X-rays from damaging the pressure sensor, thus ensuring the stability and reliability of the pressure sensor. In addition, this layout can also prevent the pressure sensor from interfering with the X-rays, thereby ensuring the accuracy of the diagnosis of the patient's condition.

[0025] 4. In the present utility model, when the length of the pressure sensor is not less than the circumference of the scanning window, at least one pressure sensor is arranged circumferentially around the scanning window for comprehensive deformation detection of the scanning window; when the length of the pressure sensor is less than the circumference of the scanning window, multiple pressure sensors are arranged at intervals along the circumference of the scanning window for comprehensive deformation detection of the scanning window. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following will describe the preferred embodiments of the present utility model in detail with reference to the accompanying drawings, making the above and other features and advantages of the present utility model clearer to those of ordinary skill in the art. In the drawings:

[0027] Figure 1 is a schematic structural diagram of a frame provided by the present utility model;

[0028] Figure 2 is a sectional view of a frame provided by the present utility model;

[0029] Figure 3 is a schematic structural diagram of the scanning window and the pressure sensor in a frame provided by the present utility model;

[0030] Figure 4 is Figure 3 a sectional view along the A-A direction in

[0031] Figure 5 is a schematic structural diagram of a scanning device provided by the present utility model.

[0032] Among them, the reference numerals are as follows:

[0033]

[0034] Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present utility model clearer, the following examples are given to further elaborate on the present utility model in detail.

[0036] With the rapid development of Computed Tomography (CT) technology, CT devices are increasingly widely used in the medical field, especially in clinical practice. The gantry, as a key component in CT devices, has a scanning window through which X-rays and positioning lines pass; and the scanning window can prevent patients from coming into contact with the rotating components inside the gantry. However, during the use of CT devices, patients may collide with the scanning window; since the scanning window is not as hard as other components, if there is stress, the scanning window is extremely likely to deform or even develop defects. A deformed or defective scanning window cannot protect patients from the rotating components inside the gantry, resulting in harm to the patients.

[0037] In view of this, in combination with the attached Figures 1 to 4 As shown, the present utility model provides a new gantry for CT devices; the gantry includes: a first housing 110, a second housing 120 (as Figure 2 shown), a scanning window 130, and a pressure sensor 140 (as Figure 3 shown). The first housing 110 has a first through hole 1101; the second housing 120 is disposed opposite to the first housing 110, and the second housing 120 has a second through hole 1201 (as Figure 2 shown). The cross-section of the scanning window 130 perpendicular to the scanning rotation center is annular, and both sides of the scanning window 130 are respectively connected to the first housing 110 and the second housing 120; and the first through hole 1101, the scanning window 130, and the second through hole 1201 form a passage 150 through which patients can pass. The pressure sensor 140 is disposed on the scanning window 130 and is used to generate corresponding electrical signals when the scanning window 130 deforms, so as to monitor the state of the scanning window 130.

[0038] Specifically, the scanning window 130 is located between the first housing 110 and the second housing 120. The first side 1301 of the scanning window 130 is fixedly connected to the first housing 110, and the second side 1302 of the scanning window 130 is fixedly connected to the second housing 120. The first housing 110, the second housing 120, and the scanning window 130 can form the outer shell of the frame to prevent the patient from contacting the rotating components inside the frame when moving in the channel 150, thereby avoiding harm to the patient. More specifically, when the patient collides with the first housing 110, the second housing 120, or the scanning window 130, or in other situations that cause the scanning window 130 to be deformed under force, the pressure sensor 140 can generate corresponding electrical signals to monitor the deformation of the scanning window 130, enabling the staff to know the state of the scanning window 130 and then take corresponding protective measures in a timely manner to prevent harm to the patient.

[0039] Please continue to refer to Figure 3 , the scanning window 130 includes an inner surface 1311 facing the channel 150 and an outer surface 1312 opposite to the inner surface 1311. The pressure sensor 140 is disposed on the outer surface 1312 of the scanning window 130 to prevent the patient from contacting the pressure sensor 140, thereby ensuring the reliability of the pressure sensor 140 and the safety of the patient. However, the present invention is not limited thereto.

[0040] Please continue to refer to Figure 4 , the scanning window 130 is provided with an annular region through which X-rays pass. Specifically, an X-ray source (not shown in the figure) and a detector (not shown in the figure) are usually provided opposite to each other inside the frame. During use, the X-ray source emits X-rays, and the X-rays pass through the annular region on the scanning window 130 and the patient along their path R and are projected onto the detector. The detector then collects the attenuated X-rays for diagnosing the patient's condition.

[0041] Furthermore, please refer to Figure 3 and Figure 4 simultaneously. The pressure sensor 140 is located outside the annular region to avoid the annular region. This layout can prevent the X-rays from damaging the pressure sensor 140, thereby ensuring the stability and reliability of the pressure sensor 140. In addition, this layout can also prevent the pressure sensor 140 from interfering with the X-rays, thereby ensuring the accuracy of diagnosing the patient's condition. Optionally, the pressure sensor 140 is arranged to avoid the annular region on the first side 1301 and / or the second side 1302 of the scanning window 130. However, the present invention is not limited thereto.

[0042] Specifically, in some embodiments, when the length of the pressure sensor 140 is not less than the perimeter of the scanning window 130, the number of pressure sensors 140 is at least one; and at least one pressure sensor 140 is arranged circumferentially around the scanning window 130 to perform a comprehensive deformation detection on the scanning window 130. Optionally, as Figure 3 shown, the number of pressure sensors 140 is two. One pressure sensor 140 avoids the annular region and is arranged circumferentially around the first side 1301 of the scanning window 130, and the other pressure sensor 140 avoids the annular region and is arranged circumferentially around the second side 1302 of the scanning window 130. The present invention is not limited thereto.

[0043] In other embodiments, when the length of the pressure sensor 140 is less than the perimeter of the scanning window 130, the number of pressure sensors 140 is multiple; and the multiple pressure sensors 140 are arranged at intervals circumferentially along the scanning window 130 to perform a comprehensive deformation detection on the scanning window 130. Optionally, the multiple pressure sensors 140 include a first part and a second part. The pressure sensors 140 in the first part avoid the annular region and are arranged circumferentially around the first side 1301 of the scanning window 130, and the pressure sensors 140 in the second part avoid the annular region and are arranged circumferentially around the second side 1302 of the scanning window 130. The present invention is not limited thereto.

[0044] Specifically, the pressure sensor 140 converts pressure into a voltage signal or a current signal, and then the deformation detection of the scanning window 130 can be realized by processing the voltage signal or the current signal subsequently. In some embodiments, the pressure sensor 140 adopts a piezoelectric sensor, and the piezoelectric sensor is prepared by using a piezoelectric thin film. The piezoelectric sensor has high sensitivity to deformation detection, is flexible in operation and can deform together with the scanning window 130, so as to better perform deformation detection on the scanning window 130. At the same time, the piezoelectric sensor can also directly detect relative deformation without calibrating the assembly situation between the scanning window 130 and the first housing 110 and the second housing 120. In addition, the piezoelectric sensor itself also has the characteristics of low current and low power consumption. In other embodiments, the pressure sensor 140 can also adopt a strain sensor or a piezoresistive sensor, but the present invention is not limited thereto.

[0045] Based on the same inventive concept, in combination with the attached Figure 5 shown, this embodiment further provides a scanning device, including: the frame as described above; and a detection terminal device 210, communicatively connected to the pressure sensor 140, for obtaining the deformation amount of the scanning window 130 according to the electrical signal to visually display the deformation condition of the scanning window 130, so as to facilitate the staff to know the state of the scanning window 130.

[0046] Optionally, an amplifier 220 is further provided between the pressure sensor 140 and the detection terminal device 210 to amplify the electrical signal, thereby improving the accuracy of calculating the deformation amount of the scanning window 130. Optionally, a filter (not shown in the figure) may be further provided between the amplifier 220 and the detection terminal device 210 to filter the amplified electrical signal, thereby further improving the accuracy of calculating the deformation amount of the scanning window 130, but the present invention is not limited thereto.

[0047] In some embodiments, the scanning device further includes: an alarm 230, communicatively connected to the detection terminal device 210, for alarming when the deformation amount of the scanning window 130 exceeds a set threshold, so that the staff can take safety measures in time, but the present invention is not limited thereto.

[0048] Based on the same inventive concept, this embodiment further provides a CT device, including: the scanning device as described above.

[0049] In summary, a gantry, a scanning device, and a CT device provided in this embodiment; the gantry includes: a first housing having a first through hole, a second housing having a second through hole, a scanning window connected to the first housing and the second housing, and a pressure sensor disposed on the scanning window. When the patient collides with the first housing, the second housing, or the scanning window, or in other cases, the scanning window is deformed due to force, the pressure sensor can generate a corresponding electrical signal to monitor the deformation of the scanning window, so that the staff can know the state of the scanning window, and then can take corresponding protection measures in time to prevent the patient from being injured. Further, the pressure sensor is disposed on the outer surface of the scanning window to prevent the patient from contacting the pressure sensor, thereby ensuring the reliability of the pressure sensor and the safety of the patient. In this embodiment, an annular region for X-rays to pass through is provided on the scanning window, and the pressure sensor is located outside the annular region. This layout can avoid damage to the pressure sensor caused by X-rays, thereby ensuring the stability and reliability of the pressure sensor; in addition, this layout can also avoid interference with X-rays generated by the pressure sensor, thereby ensuring the accuracy of diagnosing the patient's condition. When the length of the pressure sensor in this embodiment is not less than the circumference of the scanning window, at least one pressure sensor is disposed around the circumference of the scanning window to comprehensively detect the deformation of the scanning window; when the length of the pressure sensor is less than the circumference of the scanning window, a plurality of pressure sensors are spaced along the circumference of the scanning window to comprehensively detect the deformation of the scanning window.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rack for CT equipment; characterized in that: The frame comprises: A first housing (110) having a first through hole (1101); A second shell (120) is arranged opposite to the first shell (110); and the second shell (120) has a second through hole (1201); a scanning window (130), the cross section of which is perpendicular to the scanning rotation center is annular; two sides of the scanning window (130) are respectively connected to the first shell (110) and the second shell (120), and the first through hole (1101), the scanning window (130) and the second through hole (1201) form a channel (150); and A pressure sensor (140) is disposed on the scanning window (130) and is used to generate a corresponding electrical signal when the scanning window (130) is deformed, so as to monitor the state of the scanning window (130).

2. The rack according to claim 1, characterized in that: The scanning window (130) comprises an inner surface (1311) facing the channel (150) and an outer surface (1312) opposite to the inner surface (1311); the pressure sensor (140) is arranged on the outer surface (1312) of the scanning window (130).

3. The rack according to claim 2, characterized in that: When the length of the pressure sensor (140) is smaller than the circumference of the scanning window (130), the number of the pressure sensors (140) is multiple; and the multiple pressure sensors (140) are arranged at intervals along the circumference of the scanning window (130).

4. The rack according to claim 2, characterized in that: When the length of the pressure sensor (140) is not less than the circumference of the scanning window (130), the number of the pressure sensor (140) is at least one; and at least one pressure sensor (140) is arranged around the circumference of the scanning window (130).

5. The rack according to any one of claims 1 to 4, characterized in that: The scanning window (130) is provided with an annular area for X-rays to pass through, and the pressure sensor (140) is located outside the annular area.

6. The rack according to claim 1, wherein: The pressure sensor (140) converts pressure into a voltage signal or a current signal.

7. A scanning device, characterized in that: include: The rack according to any one of claims 1 to 6; as well as A detection terminal device (210) is connected in communication with the pressure sensor (140) and is used to obtain the deformation amount of the scanning window (130) according to the electrical signal.

8. The scanning device according to claim 7, characterized in that: An amplifier (220) is also provided between the pressure sensor (140) and the detection terminal device (210).

9. The scanning device according to claim 7, characterized in that: Also includes: An alarm (230) is connected to the detection terminal device (210) for generating an alarm when the deformation of the scanning window (130) exceeds a set threshold.

10. A CT device, characterized in that: include: A scanning device as claimed in any one of claims 7 to 9.