Control handle and medical imaging system
By introducing a press detection unit and a touch detection unit into the joystick of the medical imaging system, combined with the method of judging the operating behavior, the control behavior problem caused by accidental touch is solved, and safety and applicability are improved.
Patent Information
- Application Number
- CN202421887596.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The joystick in the medical imaging system is prone to control behavior due to accidental touching, affecting safety.
A joystick including a core rod, a handle body, a press detection unit and a touch detection unit are designed. By combining the press detection unit and the touch detection unit, it is determined whether the operation behavior is an accidental trigger, thereby effectively avoiding the control behavior caused by accidental trigger.
It effectively avoids control behavior caused by accidental touch, improves the safety of the joystick, and adapts to the operating habits of different users.
Smart Images
Figure CN222997875U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a control handle and a medical imaging system including the same. Background Art
[0002] Medical imaging systems often control devices through control handles. For example, users can adjust the position of the device by swinging the control handle. However, the control handle may be accidentally touched, such as being accidentally bumped, and the accidental touch will also control the movement of the device, which will affect safety. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a control handle which is conducive to avoiding control behaviors caused by accidental touches.
[0004] Another purpose of the utility model is to provide a medical imaging system whose control handle is conducive to avoiding control behaviors caused by accidental touches.
[0005] The utility model provides a control handle which includes a core rod, a handle body, a pressing detection unit and a touch detection unit. The handle body is wrapped around the outside of the core rod. The handle body can move relative to the core rod along the length direction of the core rod and the opposite direction of the length direction. The pressing detection unit is arranged on the core rod. The handle body can move relative to the core rod along the length direction to trigger the pressing detection unit to generate a pressing detection signal by means of pressing. The touch detection unit is arranged on the handle body. The touch detection unit is used for generating a touch detection signal when it detects that the outer surface of the handle body is touched.
[0006] This control handle is conducive to avoiding control behaviors caused by accidental touches.
[0007] In another schematic embodiment of the control handle, the top end of the core rod in the opposite direction of the length direction is located inside the handle body. The handle body has a pressing part opposite to the top end along the length direction. The pressing detection unit is arranged at the top end. The handle body can trigger the pressing detection unit to generate a pressing detection signal by means of pressing through the pressing part. This is conducive to making the overall structure more compact.
[0008] In still another schematic embodiment of the control handle, the pressing detection unit is a microswitch. The microswitch has a high triggering accuracy, which is conducive to improving reliability.
[0009] In yet another schematic embodiment of the control handle, the touch detection unit is a capacitive sensor. The capacitive sensor has good signal stability.
[0010] In yet another illustrative embodiment of the operating handle, the handle body includes a bracket and a handle sleeve. The bracket is slidably connected to the core rod along the length direction and the opposite direction of the length direction. The handle sleeve is wrapped around the outside of the bracket. The touch detection unit is fixed to the bracket and is used to generate a touch detection signal when it detects that the outer surface of the handle sleeve is touched. This structure facilitates assembly.
[0011] In yet another illustrative embodiment of the operating handle, the circumferential outer surface of the handle sleeve includes several operating surfaces arranged continuously in the circumferential direction, where the circumferential direction is perpendicular to the length direction. The handle sleeve is provided with convex ribs between adjacent operating surfaces. The convex ribs can facilitate the user to judge the position of each operating surface by touch during blind operation. The touch detection unit has several sensing parts. Each sensing part corresponds to only one operating surface and is used to generate a touch detection signal when it detects that the operating surface it corresponds to is touched. This helps to further avoid control actions caused by accidental touches.
[0012] In yet another illustrative embodiment of the operating handle, the operating handle further includes a reset elastic member. The reset elastic member can apply an elastic force to drive the handle body to move relative to the core rod in the opposite direction of the length direction. This can facilitate the automatic reset of the handle body when it is not being pressed.
[0013] In yet another illustrative embodiment of the operating handle, the reset elastic member is a compression spring and is sleeved on the part of the core rod located inside the handle body. One end of the reset elastic member abuts against the handle body, and the other end abuts against a abutting member fixed to the core rod. This structure is simple and facilitates assembly.
[0014] In yet another illustrative embodiment of the operating handle, the operating handle further includes a key unit. The key unit includes a key switch disposed inside the handle body and an operating member embedded in the circumferential outer surface of the handle body. Pressing the operating member can trigger the key switch to generate a switch signal. The key unit can facilitate the expansion of the control function of the operating handle.
[0015] The present utility model also provides a medical imaging system, which includes a medical imaging device and an above-mentioned operating handle. The operating handle of this medical imaging system helps to avoid control actions caused by accidental touches.
[0016] In another illustrative embodiment of the medical imaging system, the medical imaging system further includes an operating console. The tail end of the core rod in the opposite direction of the length direction is swingably connected to the operating console.
[0017] In yet another illustrative embodiment of the medical imaging system, the medical imaging device is a C-arm X-ray imaging device. Description of the Drawings
[0018] The following drawings only schematically illustrate and explain the present utility model and do not limit the scope of the present utility model.
[0019] Figure 1 A perspective view of a schematic embodiment of the operating handle.
[0020] Figure 2 For Figure 1 A partial cross-sectional view of the operating handle shown.
[0021] Figure 3 For Figure 2 A variation state diagram of the operating handle shown.
[0022] Figure 4 For the handle body and the touch detection unit along Figure 2 A cross-sectional view taken along III-III in
[0023] Figure 5 A perspective view of another schematic embodiment of the operating handle.
[0024] Figure 6 For Figure 5 A partial cross-sectional view of the operating handle shown.
[0025] Figure 7 A schematic structural diagram of a schematic embodiment of a medical imaging system.
[0026] Reference numeral description
[0027] 10 core rod
[0028] 11 top end
[0029] 12 tail end
[0030] 20 handle body
[0031] 21 bracket
[0032] 22 handle sleeve
[0033] 23 bump
[0034] 221 operation surface
[0035] 223 rib
[0036] P pressing part
[0037] 30 pressing detection unit
[0038] 40 touch detection unit
[0039] 41 sensing part
[0040] 50 reset elastic member
[0041] 60 key unit
[0042] 61 key switch
[0043] 62 operating member
[0044] 70 abutting member
[0045] 100 operating handle
[0046] 200 medical imaging device
[0047] 300 console
[0048] L longitudinal direction
[0049] C circumferential direction Detailed implementation manner
[0050] For a clearer understanding of the technical features, objectives, and effects of the utility model, the detailed implementation manner of the utility model is now described with reference to the accompanying drawings. In the drawings, the same reference numerals denote components having the same or similar structures but the same functions.
[0051] In this document, "schematic" means "serving as an example, instance, or illustration", and any illustration or implementation manner described as "schematic" in this document should not be construed as a more preferred or more advantageous technical solution.
[0052] For the sake of simplicity of the drawings, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product.
[0053] Figure 1 It is a perspective view of a schematic implementation manner of the operating handle. Figure 2 For Figure 1 A partial cross-sectional view of the operating handle shown. The operating handle is, for example, part of a medical imaging system and is used to control the devices of the medical imaging system. The devices are, for example, C-arm X-ray imaging devices, and by way of example, can be angiography machines (DSA) or mobile C-arm X-ray imaging devices, but are not limited thereto. The operating handle can also be used to operate other medical devices. When the operating handle is applied to a medical imaging system, it is, for example, swingably mounted on the console of the medical imaging system, and the user can, for example, control the device by swinging the operating handle. During use, the operating behavior that causes the operating handle to swing may come from the normal operation of a person or from an accidental touch.
[0054] As Figure 1 and Figure 2 shown, the operating handle 100 includes a core rod 10, a handle body 20, two pressing detection units 30 ( Figure 1 not visible in Figure 1(not visible in the figure). When in use, the handle body 20 is for being held by the user.
[0055] The handle body 20 is wrapped around the outer side of the core rod 10. The handle body 20 can move relative to the core rod 10 along the length direction L of the core rod 10 and the opposite direction of the length direction L.
[0056] As Figure 2 shown, the pressing detection unit 30 is arranged on the core rod 10. The handle body 20 can move relative to the core rod 10 along the length direction L to trigger the pressing detection unit 30 to generate a pressing detection signal in a pressing manner. Figure 3 For Figure 2 the change state diagram of the operating handle shown in the figure. Figure 3 It shows the state where the handle body 20 moves relative to the core rod 10 along the length direction L to trigger the pressing detection unit 30 on the basis of Figure 2 . In this schematic embodiment, the operating handle 100 is provided with two pressing detection units 30, thereby facilitating the improvement of safety based on dual-channel signal transmission, but not limited thereto. In other schematic embodiments, the number of the pressing detection units 30 can be adjusted as needed. The pressing detection unit 30 is, for example, a micro switch, but not limited thereto. In other schematic embodiments, the pressing detection unit 30 can also be other pressure detection mechanisms other than the micro switch.
[0057] As Figure 2 shown, the touch detection unit 40 is arranged on the handle body 20. The touch detection unit 40 is used to generate a touch detection signal when detecting that the outer surface of the handle body 20 is touched. The touch detection unit 40 is, for example, a capacitive sensor.
[0058] In this way, when the user presses the handle body 20 along the length direction L, a pressing detection signal can be generated; when the user touches the outer surface of the handle body 20, a touch detection signal can be generated. When judging, for example, in the case of generating a pressing detection signal or a touch detection signal, it can be judged that the operation behavior belongs to the normal operation of the person rather than an accidental touch. In this case, the operation behavior is effective, that is, the control of the device can be realized; in the case where neither a pressing detection signal nor a touch detection signal is generated, it is judged that the operation behavior belongs to an accidental touch. In this case, the operation behavior is invalid, that is, the control of the device cannot be realized. Thereby, it is beneficial to avoid the control behavior caused by accidental touch. In addition, such a setting is also beneficial to meet the habits of different users. For example, some users are used to pressing the handle body 20, and some users are used to touching the outer surface of the handle body 20. Thereby, it is beneficial to improve the applicability of the operating handle.
[0059] Of course, during the judgment, for example, it is also possible to judge that the operation behavior belongs to the normal operation of the person rather than an accidental touch when the pressing detection signal and the touch detection signal are generated simultaneously; when the pressing detection signal and the touch detection signal are not generated simultaneously, it is judged that the operation behavior belongs to an accidental touch. In this way, it is beneficial to further avoid control behaviors caused by accidental touches. The above judgment is realized, for example, by the control device of the medical imaging system or a control component independent of the medical imaging system.
[0060] As Figure 2 shown, in the schematic embodiment, the top end 11 of the core rod 10 in the opposite direction of the length direction L is located within the handle body 20. The handle body 20 has a pressing portion P opposite to the top end 11 along the length direction L. The pressing detection unit 30 is disposed at the top end 11. The handle body 20 can trigger the pressing detection unit 30 to generate a pressing detection signal in a pressing manner through the pressing portion P. This is beneficial to making the overall structure more compact.
[0061] As Figure 2 shown, for example, the pressing portion P is provided with two protruding blocks 23, and each protruding block 23 corresponds to a pressing detection unit 30. The pressing portion P can press the pressing detection unit 30 through the protruding blocks 23. This is more beneficial to successful triggering, but is not limited thereto. In other schematic embodiments, the protruding blocks 23 may not be provided.
[0062] As Figure 1 and Figure 2 shown, in the schematic embodiment, the handle body 20 includes a bracket 21 and a handle sleeve 22. The bracket 21 is, for example, composed of a plurality of components combined together, but is not limited thereto. The pressing portion P is disposed on the handle sleeve 22. The bracket 21 is slidably connected to the core rod 10 along the length direction L and the opposite direction of the length direction L. The handle sleeve 22 is wrapped around the outside of the bracket 21. The touch detection unit 40 is fixed to the bracket 21 and is used to generate a touch detection signal when it detects that the outer surface of the handle sleeve 22 is touched. The touch detection unit 40 is fixed to the bracket 21, for example, by adhesion or snap-fitting, but is not limited thereto. In the present schematic embodiment, the touch detection unit 40 is a capacitive sensor, which is attached to the inner surface of the handle sleeve 22 to obtain better detection sensitivity, but is not limited thereto. In other schematic embodiments, for example, an appropriate gap may be left between the touch detection unit 40 and the inner surface of the handle sleeve 22 according to the assembly requirements, and the width of the gap should meet the requirements for detection sensitivity.
[0063] Figure 4 For the cross-sectional view of the handle body and the touch detection unit along Figure 2 III-III in Figure 4As shown, in the illustrative embodiment, the circumferential outer surface of the handle sleeve 22 includes four operation surfaces 221 that are continuously arranged circumferentially along C, where the circumferential direction C is perpendicular to the length direction L. For ease of understanding, Figure 4 in the figure, adjacent operation surfaces 221 are separated by dashed lines. The handle sleeve 22 is provided with ridges 223 between adjacent operation surfaces 221, so that it is convenient for the user to judge the position of each operation surface 221 by touch during blind operation. The touch detection unit 40 has four sensing parts 41. Each sensing part 41 corresponds to only one operation surface 221 and is used to generate a touch detection signal when the operation surface 221 corresponding to it is touched.
[0064] During judgment, for example, in the case where two or more sensing parts 41 both generate touch detection signals, it is judged that the operation behavior is the normal operation of the person, so that the judgment result can be more accurate and it is beneficial to further avoid control behaviors caused by accidental touches.
[0065] Specifically, as Figure 4 shown, in this illustrative embodiment, the four operation surfaces 221 face away from each other in pairs. During judgment, for example, in the case where the sensing parts 41 corresponding to two operation surfaces 221 facing away from each other both generate touch detection signals, it is judged that the operation behavior is the normal operation of the person, so that the user can make the operation behavior effective by pinching the operation surfaces 221 facing away from each other with fingers, thereby facilitating the improvement of operability. The above judgment is realized, for example, by the control device of the medical imaging system or a control component independent of the medical imaging system.
[0066] As Figure 4 shown, in the illustrative embodiment, two of the operation surfaces 221 facing away from each other are flat surfaces, and the other two operation surfaces 221 facing away from each other are curved surfaces. This can facilitate the user to distinguish different operation surfaces by touch during blind operation. Thereby, it is beneficial to improve operability.
[0067] In other illustrative embodiments, the number of operation surfaces 221 and sensing parts 41 can be adjusted as needed, and the corresponding relationship can also be adjusted as needed.
[0068] As Figure 2 and Figure 3As shown, in the illustrative embodiment, the operating handle 100 further includes a reset elastic member 50. The reset elastic member 50 can apply an elastic force to drive the handle body 20 to move relative to the core rod 10 in the opposite direction of the length direction L. This facilitates the automatic reset of the handle body when not being pressed. Specifically, in the present illustrative embodiment, the reset elastic member 50 is a compression spring and is sleeved on the part of the core rod 10 located within the handle body 20. One end of the reset elastic member 50 abuts against the handle body 20, and the other end abuts against the abutting member 70 fixed to the core rod 10. This structure is simple and convenient for assembly. The abutting member 70 is part of the operating handle 100 and is, for example, an annular sheet.
[0069] Figure 5 Is a perspective view of another illustrative embodiment of the operating handle. Figure 6 Is Figure 5 A partial cross-sectional view of the operating handle shown. The operating handle of the present illustrative embodiment is the same as or similar to the operating handle shown Figure 1 And will not be described herein again. The differences are as follows. As Figure 5 And Figure 6 Shown, in the present illustrative embodiment, the operating handle 100 further includes a key unit 60. The key unit 60 includes a key switch 61 disposed within the handle body 20 and an operating member 62 embedded in the circumferential outer surface of the handle body 20. Pressing the operating member 62 can trigger the key switch 61 to generate a switch signal. The key switch 61 is, for example, a micro switch, but is not limited thereto. The operating member 62 is, for example, passed through the handle sleeve 22 and made of an elastically deformable material. In other illustrative embodiments, the number of the key switch 61 and the operating member 62 can be adjusted as needed. The key unit 60 facilitates the expansion of the control functions of the operating handle.
[0070] Figure 7 Is a schematic structural diagram of an illustrative embodiment of a medical imaging system. As Figure 7 Shown, the medical imaging system includes a medical imaging device 200 and an Figure 5 Shown operating handle 100. Among them, the medical imaging device 200 is, for example, a C-arm X-ray imaging device, and for example, can be an angiography machine (DSA), and can also be a mobile C-arm X-ray imaging device in other illustrative embodiments, but is not limited thereto. The operating handle 100 is, for example, used to control the medical imaging device 200, or to control other devices of the medical imaging system, such as a medical bed, a display, etc. In other illustrative embodiments, the number of the operating handles 100 can be adjusted as needed. Of course, in other illustrative embodiments, the operating handle 100 can also be the Figure 1 Shown operating handle. The operating handle of this medical imaging system helps to avoid control actions caused by accidental touches.
[0071] As Figure 7 shown, in the illustrative embodiment, the medical imaging system further includes a console 300. The end of the core rod 10 in the direction opposite to the length direction L is swingably connected to the console 300. Specifically, as Figure 5 shown, the end 12 of the core rod 10 in the direction opposite to the length direction L has, for example, a spherical structure to form a spherical pair with the console 300, but is not limited thereto. During use, the user can, for example, control the medical imaging device 200 by swinging the operating handle 100 relative to the console 300.
[0072] It should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments understandable by those skilled in the art.
[0073] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or change made without departing from the technical spirit of the present invention, such as the combination, division, or repetition of features, should be included in the protection scope of the present invention.
Claims
1. A joystick, characterized in that: include: a core rod (10); a handle body (20) wrapped around the outer side of the core rod (10), the handle body (20) being able to move relative to the core rod (10) along the length direction (L) of the core rod (10) and in the opposite direction of the length direction (L); a press detection unit (30) disposed on the core rod (10), wherein the handle body (20) is capable of moving relative to the core rod (10) along the length direction (L) to trigger the press detection unit (30) to generate a press detection signal by pressing; as well as A touch detection unit (40) is arranged on the handle body (20), and the touch detection unit (40) is used to generate a touch detection signal when it detects that the outer surface of the handle body (20) is touched.
2. The operating handle according to claim 1, characterized in that: The top end (11) of the core rod (10) in the opposite direction of the length direction (L) is located inside the handle body (20), and the handle body (20) has a pressing portion (P) opposite to the top end (11) along the length direction (L). The pressure detection unit (30) is arranged at the top end (11), and the handle body (20) can trigger the pressure detection unit (30) to generate a pressure detection signal by pressing the pressing portion (P).
3. The operating handle according to claim 1, characterized in that: The pressing detection unit (30) is a micro switch.
4. The joystick according to claim 1, characterized in that: The touch detection unit (40) is a capacitive sensor.
5. The joystick according to claim 1, characterized in that: The handle body (20) comprises: a bracket (21) slidably connected to the core rod (10) along the length direction (L) and the opposite direction of the length direction (L); and A handle cover (22) is wrapped around the outside of the bracket (21); the touch detection unit (40) is fixed to the bracket (21) and is used to generate a touch detection signal when it detects that the outer surface of the handle cover (22) is touched.
6. The operating handle according to claim 5, characterized in that: The circumferential outer surface of the handle cover (22) comprises a plurality of operating surfaces (221) arranged continuously along a circumferential direction (C), wherein the circumferential direction (C) is perpendicular to the length direction (L); the handle cover (22) is provided with ridges (223) between adjacent operating surfaces (221); the touch detection unit (40) comprises a plurality of sensing parts (41), each of the sensing parts (41) corresponds to only one operating surface (221) and is used to generate a touch detection signal when it detects that the corresponding operating surface (221) is touched.
7. The joystick according to claim 1, characterized in that: The operating handle further comprises a reset elastic member (50), wherein the reset elastic member (50) is capable of exerting an elastic force to drive the handle body (20) to move relative to the core rod (10) in the opposite direction of the length direction (L).
8. The operating handle according to claim 7, characterized in that: The reset elastic member (50) is a compression spring and is sleeved on the portion of the core rod (10) located inside the handle body (20); one end of the reset elastic member (50) abuts against the handle body (20), and the other end abuts against a abutting member (70) fixed to the core rod (10).
9. The joystick according to claim 1, characterized in that: The operating handle further comprises a key unit (60), wherein the key unit (60) comprises a key switch (61) arranged in the handle body (20) and an operating member (62) embedded in the circumferential outer surface of the handle body (20), and the key switch (61) can be triggered to generate a switch signal by pressing the operating member (62).
10. A medical imaging system, characterized in that The invention comprises a medical imaging device (200) and a joystick as claimed in any one of claims 1 to 9.
11. The medical imaging system of claim 10, wherein: The medical imaging system further comprises a control table (300), and the tail end (12) of the core rod (10) in the opposite direction of the length direction (L) is swingably connected to the control table (300).
12. The medical imaging system of claim 10, wherein: The medical imaging device (200) is a C-arm X-ray imaging device.