DSA pedal mistaken stepping prevention device
By designing an anti-accidental-stepping mechanism, the problem of accidental stepping with traditional foot pedals is solved. This mechanism allows the foot pedal to be covered when not in use and exposed when needed, reducing the risk of accidental stepping and improving safety and operational efficiency.
Patent Information
- Application Number
- CN202423076747.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional foot pedal designs lack effective mechanisms to prevent accidental pedaling, resulting in a high risk of accidental pedaling in complex operating environments, which affects diagnostic accuracy and safety.
An anti-accidental-stepping mechanism is adopted, including components such as a push plate, push rod, guide rail, moving seat, locking block, spring, and elastic locking element. Through the elastic action of the spring and the positioning mechanism of the locking block, the foot pedal is ensured to be covered when it is not needed and exposed when it is needed.
It effectively reduces the risk of accidental stepping, avoids safety accidents caused by accidental stepping, and improves the safety and efficiency of operation.
Smart Images

Figure CN223930230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical assistive device technology, specifically a DSA foot pedal anti-accidental stepping device. Background Technology
[0002] In the use of medical imaging equipment, such as digital subtraction angiography (DSA) systems, the foot pedal is an important component for doctors to operate and control. Doctors trigger various functions of the equipment, such as X-ray exposure and image acquisition, by stepping on the foot pedal. However, in actual operation, due to the complex operating environment, frequent operation by doctors, and possible misoperation in emergency situations, the foot pedal may sometimes be accidentally stepped on, leading to unnecessary equipment response or operation interruption. This not only affects the accuracy and efficiency of diagnosis, but also poses safety risks to doctors and patients.
[0003] Traditional foot pedal designs often lack effective mechanisms to prevent accidental activation, relying mainly on the doctor's attention and operating habits to avoid misoperation. However, in long-term, high-intensity operating environments, it is difficult for doctors to maintain a high level of attention at all times, so the risk of accidental activation still exists. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model discloses a DSA foot pedal anti-accidental stepping device. The technical solution adopted is that it includes a base and a foot pedal. The base is a box-shaped structure with an opening at the front. The foot pedal is fixedly installed at the bottom inside the base. An anti-accidental stepping mechanism that cooperates with the foot pedal is installed on the base.
[0005] The anti-accidental stepping mechanism includes a push plate, a push rod, guide rails, movable seats, a locking block, an anti-stepping plate, springs, and elastic locking components. Two guide rails are provided, fixedly installed on both sides of the bottom of the base. Movable seats, T-shaped, are slidably mounted on each guide rail. The tops of the two movable seats are fixedly connected to the bottom ends of the anti-stepping plate, which is located above the foot pedal. Two springs are provided, one end of each spring fixedly connected to the side of one of the two movable seats, and the other end of each spring connected to the rear side wall of the base. The system is fixedly connected, with two U-shaped elastic clips fixedly installed in grooves on opposite side walls of the base. Two locking blocks are also provided, fixedly installed on the sides of two movable seats, each engaging with one of the elastic clips. Two push rods are slidably installed in through slots on the sides of both ends of the base. One end of each push rod is spherical and engages with an elastic clip. The end of the push rod located on the outer side of the base is fixedly connected to the side of the push plate. In a preferred embodiment, a sealing plate is fixedly installed on the top of the rear side of the base, with the height of the sealing plate exceeding the height of the anti-stepping plate.
[0006] As a preferred embodiment of this utility model, baffles are fixedly installed on opposite sides of the base, and rubber blocks are fixedly installed on the sides of both baffles, with the rubber blocks cooperating with the movable seat.
[0007] As a preferred embodiment of this utility model, a magnet plate is fixedly installed on the side of the movable seat, and an iron block that cooperates with the magnet plate is wrapped inside the rubber block.
[0008] As a preferred embodiment of this utility model, the bottom of the anti-stepping plate is fixedly equipped with a mesh-like reinforcing rib.
[0009] The beneficial effects of this utility model are:
[0010] 1. Under normal circumstances, the anti-stepping plate is held in front by the action of the spring, blocking the foot pedal and preventing accidental stepping. Only when the doctor needs to operate, the anti-stepping plate and the moving seat are pushed to move backward along the guide rail. As the moving seat moves, the locking block will push the elastic locking element to bend. When the locking block moves to the rear of the inward protrusion of the elastic locking block, the elastic locking element returns to its original shape and positions the locking block, thereby moving the anti-stepping plate to one side, exposing the foot pedal for the doctor to step on, thus reducing the risk of accidental stepping and avoiding safety accidents caused by accidental stepping.
[0011] 2. The sealing plate can seal the top rear side of the base, improving the flatness of the base. The baffle can limit the movement distance of the moving seat and the anti-stepping plate. The rubber block can provide cushioning for the moving seat and prevent noise when the moving seat contacts the baffle.
[0012] 3. The movable seat can be attracted by the magnetic plate and the iron block, which improves the stability of the movable seat and the anti-step plate on the foot pedal. The reinforcing ribs can enhance the load-bearing capacity and stability of the anti-step plate and prevent damage. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the anti-accidental stepping mechanism of this utility model;
[0015] Figure 3 This is a schematic diagram of the movable base structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the base of this utility model;
[0017] Figure 5 This is a schematic diagram of the anti-stepping plate structure of this utility model;
[0018] Figure 6 This is a schematic diagram of the cross-sectional structure of the rubber block of this utility model.
[0019] In the diagram: 1. Base, 2. Foot pedal, 3. Anti-accidental stepping mechanism, 31. Push plate, 32. Top rod, 33. Guide rail, 34. Moving seat, 35. Locking block, 36. Anti-stepping plate, 37. Spring, 38. Elastic locking element, 4. Sealing plate, 5. Baffle, 6. Rubber block, 7. Magnet plate, 8. Iron block, 9. Reinforcing rib. Detailed Implementation
[0020] Example 1
[0021] like Figures 1 to 6 As shown, this utility model discloses a DSA foot pedal anti-accidental stepping device. The technical solution adopted is that it includes a base 1 and a foot pedal 2. The base 1 is a box-shaped structure with an opening at the front. The foot pedal 2 is fixedly installed at the bottom inside the base 1. An anti-accidental stepping mechanism 3 that cooperates with the foot pedal 2 is installed on the base 1.
[0022] The anti-accidental stepping mechanism 3 includes a push plate 31, a push rod 32, a guide rail 33, a movable seat 34, a locking block 35, an anti-stepping plate 36, a spring 37, and an elastic locking element 38. Two guide rails 33 are provided, fixedly installed on both sides of the bottom of the base 1. Movable seats 34 are slidably mounted on each of the two guide rails 33. Baffles 5 are fixedly installed on opposite sides of the base 1. Rubber blocks 6 are fixedly installed on the sides of both baffles 5. The rubber blocks 6 cooperate with the movable seats 34. The baffles 5 limit the movement distance of the movable seats 34 and the anti-stepping plate 36, and the rubber blocks 5 provide cushioning for the movable seats 34, preventing noise when the movable seats 34 contact the baffles. Magnets are fixedly installed on the sides of the movable seats 34. The iron plate 7 and rubber block 6 are internally encased with an iron block 8 that cooperates with the magnetic plate 7. The magnetic plate 7 and iron block 8 work together to attract the movable seat 34, improving the stability of the movable seat 34 and anti-stepping plate 36 on the foot pedal 2. The movable seat 34 is T-shaped, with the tops of the two movable seats 34 fixedly connected to the bottom ends of the anti-stepping plate 36. The anti-stepping plate 36 is located on the upper side of the foot pedal 2. A sealing plate 4 is fixedly installed on the top rear side of the base 1. The height of the sealing plate 4 is greater than the height of the anti-stepping plate 36, sealing the rear top of the base 1 and improving its flatness. A mesh reinforcing rib 9 is fixedly installed on the bottom of the anti-stepping plate 36, enhancing its load-bearing capacity and stability. To prevent damage, two springs 37 are provided. One end of each spring 37 is fixedly connected to the side of one of the two movable seats 34, and the other end of each spring 37 is fixedly connected to the rear side wall inside the base 1. Two elastic clips 38 are U-shaped and are fixedly installed in grooves on opposite side walls inside the base 1. Two locking blocks 35 are provided and fixedly installed on the sides of the two movable seats 34, respectively cooperating with the two elastic clips 38. Two push rods 32 are provided and slidably installed in through slots on the sides of both ends of the base 1. One end of each push rod 32 is spherical and cooperates with the elastic clip 38. One end of the base 1 is fixedly connected to the side of the push plate 31. Under normal circumstances, the anti-stepping plate 36 is held in front by the action of the spring 37, blocking the foot pedal 36 and preventing accidental stepping. Only when the doctor needs to operate, the anti-stepping plate 36 and the moving seat 34 are pushed to move backward along the guide rail 33. As the moving seat 34 moves, the locking block 35 pushes the elastic locking member 38 to bend. When the locking block 35 moves to the rear of the inward protrusion of the elastic locking block 35, the elastic locking member 38 returns to its original shape and positions the locking block 35, thereby moving the anti-stepping plate 36 to one side, exposing the foot pedal 2 for the doctor to step on, thereby reducing the risk of accidental stepping and avoiding safety accidents caused by accidental stepping.
[0023] The working principle of this utility model is as follows: When not in operation, the anti-stepping plate 36, under the action of the spring 37, is held at the upper position of the base 1, blocking the foot pedal 2 and preventing accidental stepping. When the doctor needs to operate the foot pedal 2, the anti-stepping plate 36 can be pushed to move, causing the anti-stepping plate 36 to drive the moving seat 34 to move backward along the guide rail 33. During the movement, the moving seat 34 will compress the spring 37, and the locking block 35 on the side of the moving seat 34 will push the elastic locking member 38 to deform, causing the locking block 35 to move to the rear of the elastic locking member 38. At this time, the elastic locking member 38 will return to its original shape under its own elasticity, so that the protruding part of the elastic locking member 38 near the foot pedal 2 blocks the locking block 35, keeping the locking block 35, the moving seat 34, and the anti-stepping plate 36 in the rear position, exposing the foot pedal 2. At this time, the doctor can step on the foot pedal 2 to operate. After the operation is completed... Simultaneously, the push plates 31 can be pushed, causing both push plates 31 to move the two push rods 32 backward. The spherical parts on the two push rods 32 simultaneously push the two elastic clips 38 closer to the outer side of the base 1, causing the two elastic clips 38 to bend and deform, releasing the two locking blocks 35 simultaneously. At this time, the elasticity of the spring 37 will push the moving seat 34 forward. As the moving seat 34 moves, it will contact the rubber block 6 on the baffle 5, blocking the moving seat 34. Simultaneously, the magnetic plate 7 on the moving seat 34 will adhere to the iron block 8 on the rubber block 6, positioning the moving seat 34 and the anti-stepping plate 36, keeping the anti-stepping plate 36 above the foot pedal 2, thus preventing doctors from accidentally stepping on the foot pedal 2. Since both push plates 31 need to be operated simultaneously to release the locking of the elastic clips 38, this effectively avoids medical personnel lifting the push plates 31 and causing the foot pedal 36 to move. Components not described in detail in this article are prior art.
[0024] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A DSA foot pedal anti-accidental stepping device, comprising a base (1) and a foot pedal (2), characterized in that, The base (1) is a box-shaped structure with an opening at the front. A foot pedal (2) is fixedly installed at the bottom inside the base (1). An anti-accidental stepping mechanism (3) that cooperates with the foot pedal (2) is installed on the base (1). The anti-accidental stepping mechanism (3) includes a push plate (31), a push rod (32), a guide rail (33), a movable seat (34), a locking block (35), an anti-stepping plate (36), a spring (37), and an elastic locking element (38). Two guide rails (33) are provided, and the two guide rails (33) are fixedly installed on both sides of the bottom of the base (1). Movable seats (34) are slidably installed on each of the two guide rails (33). The movable seats (34) are T-shaped, and the tops of the two movable seats (34) are fixedly connected to the bottom ends of both ends of the anti-stepping plate (36). The anti-stepping plate (36) is located on the upper side of the foot pedal (2). Two springs (37) are provided, and one end of each spring (37) is fixedly connected to the side of the two movable seats (34). The other end of each spring (37) is fixedly connected to the side of the two movable seats (34). The end is fixedly connected to the rear side wall inside the base (1). The elastic clip (38) is U-shaped. There are two elastic clips (38). The two elastic clips (38) are fixedly installed in the grooves of opposite side walls inside the base (1). There are two clips (35). The two clips (35) are fixedly installed on the sides of the two movable seats (34). The two clips (35) cooperate with the two elastic clips (38). There are two push rods (32). The two push rods (32) are slidably installed in the through grooves on both sides of the base (1). One end of the push rod (32) is spherical. The push rod (32) cooperates with the elastic clip (38). The end of the push rod (32) located outside the base (1) is fixedly connected to the side of the push plate (31).
2. The DSA foot pedal anti-misoperation device according to claim 1, characterized in that: A sealing plate (4) is fixedly installed on the top of the rear side of the base (1), and the height of the sealing plate (4) is greater than the height of the anti-stepping plate (36).
3. The DSA foot pedal anti-misoperation device according to claim 1, characterized in that: Each of the opposite sides of the base (1) is fixedly installed with a baffle (5), and each of the two baffles (5) is fixedly installed with a rubber block (6), which cooperates with the movable seat (34).
4. The DSA foot pedal anti-misoperation device according to claim 3, characterized in that: A magnet plate (7) is fixedly installed on the side of the movable seat (34), and an iron block (8) that cooperates with the magnet plate (7) is wrapped inside the rubber block (6).
5. The DSA foot pedal anti-misoperation device according to claim 1, characterized in that: The bottom of the anti-stepping plate (36) is fixedly equipped with a mesh reinforcing rib (9).