Medical device
By using flexible film pressure sensors and soft elastic components in medical equipment such as CT machines, the problem of patient limbs and frame collision is solved, automatic emergency braking is achieved, and personnel injury is avoided.
Patent Information
- Application Number
- CN202420663181.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-04-01
AI Technical Summary
In medical equipment such as CT machines, the patient's limbs may collide with the frame shell during movement, resulting in physical damage. The prior art is difficult to effectively prevent such collisions.
A medical device is designed, including a flexible film pressure sensor and a soft elastic component. The sensor is tightly attached to the possible collision area, outputs pulses when the pressure is detected, and automatic emergency braking is achieved through an analog-to-digital converter and controller.
It realizes sensitive detection and rapid response to possible collision areas, automatically triggers emergency braking, effectively avoiding patient injury.
Smart Images
Figure CN222777320U_ABST
Abstract
Description
[0001] Nouns and pronouns relating to persons in this patent application are not limited to a specific gender. Technical Field
[0002] The utility model relates to medical equipment, in particular to collision protection. Background Art
[0003] As CT machines become more and more popular, medical accidents involving CT also occur from time to time. One of them is that during the movement of the bed, part of the patient's limbs are not within the scanning aperture of the CT frame, causing the limbs to collide with the frame shell, which can seriously cause physical injuries to the patient.
[0004] Usually, doctors will monitor the status of the CT room in real time through the transparent glass window. If the doctor finds a collision, he will press the emergency button to force the bed to stop moving immediately to avoid causing greater damage. Utility Model Content
[0005] In view of this, the utility model proposes a medical device.
[0006] According to an embodiment of the utility model, a medical device is provided, comprising a main body and a supporting structure, wherein the supporting structure can carry and move an object to approach the main body or enter an open space of the main body, wherein the main body has a shell, and the medical device further comprises: a sensor belt, which is attached to an area on the shell that the object may touch, wherein the sensor belt comprises a flexible film pressure sensor and a soft elastic component, wherein the flexible film pressure sensor is tightly attached between the soft elastic component and the shell, and outputs a pulse when detecting pressure applied thereto; an analog-to-digital converter, which receives pulses from the flexible film pressure sensor and converts the pulses into digital signals; and a controller, which receives the digital signals and stops the movement of the supporting structure accordingly.
[0007] In one embodiment, the pressure sensitive range of the flexible film pressure sensor is 20g to 10KG.
[0008] In one embodiment, the response time of the flexible film pressure sensor is.
[0009] In one embodiment, the sensor strip comprises a protective shell, which is in close contact with the soft elastic component and in close contact with the outer shell on both sides thereof.
[0010] In one embodiment, the entrances and exits of the open space are arc surfaces with a central angle of 90°, and the sensor strip is attached to a 45° position of at least one of the entrances and exits.
[0011] In one embodiment, the medical device further comprises a second sensor band, and the second sensor band is attached to the 30° position of the arc surface.
[0012] In one embodiment, the sensing strip is a 270° circular ring.
[0013] In one embodiment, the medical device is one of a CT machine, a magnetic resonance imaging device, a PET device, a PET-CT device, and a SPECT device.
[0014] The medical device of the utility model detects pressure through a flexible film pressure sensor and can be flexibly arranged in an area where a collision may occur. It has a sensitive and rapid response and automatically triggers emergency braking when a collision occurs to avoid personal injury. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will be more aware of the above and other features and advantages of the present invention. In the accompanying drawings:
[0016] Figure 1 It is a schematic diagram of a medical device according to an embodiment of the present utility model.
[0017] Figure 2 for Figure 1 A schematic cross-sectional view of a medical device along a vertical plane where the aperture is located.
[0018] Figure 3 for Figure 2 A schematic partial enlarged view of the cross section.
[0019] In the above drawings, the reference numerals used are as follows:
[0020] 100 Medical Devices 110 Sensor Strips
[0021] 102 Main body 111 Controller
[0022] 104 Open Space 112 Flexible Film Pressure Sensor
[0023] 106 Support structure 113 Stop button
[0024] 108 housing 114 soft elastic component
[0025] 109 Analog-to-digital converter 116 Protective case DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments.
[0027] Figure 1 Schematic diagram of a medical device 100 according to an embodiment of the present invention. The medical device 100 may be, for example, a CT (computed tomography) machine, a magnetic resonance imaging device, a PET (positron emission tomography) device, a PET-CT device, or a SPECT (single photon emission CT) device. Figure 1 As shown, the medical device 100 includes a main body 102 and a support structure 106. In this embodiment, the medical device 100 is a CT machine, the main body 102 is a frame, and the support structure 106 is a bed board. The support structure 106 can carry and move an object (such as a patient) to approach the main body 102 or enter the open space 104 of the main body 102, and the main body 102 has a shell 108. A stop button 113 is set on the main body 102, and after pressing the stop button 113, the support structure 106 will stop moving. Usually, stop buttons 113 are set on both sides of the main body 102 so that the doctor can operate quickly on both sides. The medical device 100 also includes a sensor belt 110, an analog-to-digital converter 109, and a controller 111.
[0028] like Figure 1 As shown, in this embodiment, the sensor belt 110 is a 270° circular ring.
[0029] Figure 2 for Figure 1 A schematic cross-sectional view of the medical device 100 along the vertical plane where the aperture is located, Figure 3 for Figure 2 A schematic partial enlarged view of the cross section of . Figure 2 and Figure 3 As shown, the sensor strip 110 is attached to the area on the housing 108 that the object may touch. In this embodiment, the open space 104 is the aperture of the CT machine, and the area that the object may touch is the entrance and exit of the aperture. The entrance and exit of the open space 104 is an arc surface with a central angle of 90°, and the sensor strip 110 is attached to the 45° position of the entrance and exit. In other embodiments, the sensor strip 110 can be attached only to the 45° position of one of the entrances and exits.
[0030] To increase the coverage, in other embodiments, the medical device 100 may further include a second sensor band (not shown), and the second sensor band may be attached to the 30° position of the arc surface.
[0031] The sensor strip 110 includes a flexible thin film pressure sensor (FTFPS) 112 and a soft elastic component 114. In this embodiment, the soft elastic component 114 is a strong elastic rubber body. The flexible thin film pressure sensor 112 is tightly attached between the soft elastic component 114 and the housing 108 of the main body 102, and outputs a pulse when detecting the pressure applied thereto.
[0032] FTFPS has various forms and is easy to customize. Even if a finger presses on the sensor with a very small force, a pulse will be triggered. In this embodiment, the pressure sensitive range of the FTFPS used is 20g to 10KG, and the response time is 1ms. In other words, as long as the pressure exceeds 20g, the trigger mechanism will be activated within 1ms. This can effectively prevent the patient from being injured by collision.
[0033] FTFPS has the advantages of being thin, easy to bend, sensitive to pressure, having a wide control range, and having a single circuit. It is suitable for being attached to the rack shell to sense collisions.
[0034] In order to fit closely with the surface of the frame, preferably, the shape of the flexible film pressure sensor 112 needs to be customized into an arc shape, regardless of the length direction or the thickness direction.
[0035] The soft elastic component 114 can protect the sensor and at the same time help convert the lateral force into a force perpendicular to the sensor surface.
[0036] In this embodiment, the sensor strip 110 further includes a protective shell 116 (e.g., made of plastic), which is in close contact with the soft elastic component 114 and in close contact with the housing 108 on both sides thereof. The protective shell 116 can make the entire sensor strip 110 more beautiful, and also allow the flexible film pressure sensor 112 and the soft elastic component 114 to fit more closely on the housing 108 of the main body 102, while facilitating cleaning. The protective shell 116 is preferably smooth and tough.
[0037] The analog-to-digital converter 109 receives the pulses from the flexible film pressure sensor 112 and converts the pulses into digital signals.
[0038] The controller 111 receives the digital signal and stops the movement of the support structure 106 accordingly. The interface end of the flexible film pressure sensor 112 can be arranged on a side close to the controller 111. In this embodiment, the frame static controller also serves as the controller 111, which is connected to the central controller. The reverse side is also true.
[0039] The controller 111 may output a signal to the stop button 113 , which is equivalent to the stop button 113 being pressed, thereby achieving emergency braking of the support structure 106 .
[0040] The medical device of the utility model detects pressure through a flexible film pressure sensor and can be flexibly arranged in an area where a collision may occur. It has a sensitive and rapid response and automatically triggers emergency braking when a collision occurs to avoid personal injury.
[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A medical device, comprising a main body (102) and a support structure (106), wherein the support structure (106) can carry and move an object to approach the main body (102) or enter an open space (104) of the main body (102), wherein the main body (102) has a housing (108), wherein the main body (102) has a housing (108), and ... wherein the main body (102) has a housing (108), wherein the main body (102) has a housing (108), wherein the main body (102) has a housing (108), wherein the main body (10 include: A sensor strip (110) is attached to an area of the housing (108) that the object may touch, the sensor strip (110) comprising a flexible film pressure sensor (112) and a soft elastic component (114), the flexible film pressure sensor (112) being tightly attached between the soft elastic component (114) and the housing (108), and outputting a pulse when detecting pressure applied thereto; an analog-to-digital converter (109) that receives pulses from the flexible film pressure sensor (112) and converts the pulses into digital signals; A controller (111) receives the digital signal and stops the movement of the support structure (106) accordingly.
2. The medical device according to claim 1, characterized in that: The pressure sensitivity range of the flexible film pressure sensor (112) is 20g to 10KG.
3. The medical device according to claim 1, characterized in that: The response time of the flexible film pressure sensor (112) is 1 ms.
4. The medical device according to claim 1, characterized in that: The sensor strip (110) comprises a protective shell (116), wherein the protective shell (116) is closely attached to the soft elastic component (114) and closely attached to the housing (108) on both sides thereof.
5. The medical device according to claim 1, characterized in that: The entrance and exit of the open space (104) are arc surfaces with a central angle of 90 degrees, and the sensor strip (110) is attached to a 45-degree position of at least one of the entrances and exits.
6. The medical device according to claim 5, characterized in that: It also includes a second sensor belt, which is attached to the 30° position of the arc surface.
7. The medical device according to claim 5, characterized in that: The sensor strip (110) is a 270° circular ring.
8. The medical device according to claim 1, characterized in that: The medical device is one of a CT machine, a magnetic resonance imaging device, a PET device, a PET-CT device, and a SPECT device.