A head fixation device for cerebral angiography

Abstract

This utility model relates to the technical field of head fixation devices, and discloses a head fixation device for cerebral angiography, including a base and a head pad. A connecting seat is fixedly connected to the top of the base, and the top of the connecting seat is annular. Two sliding grooves are horizontally opened on the top of the base, and the two sliding grooves are respectively located at both ends of the connecting seat. A first connecting groove is provided at both ends of the base, and the two sliding grooves communicate with the two first connecting grooves respectively. The head pad is slidably connected to the annular part of the top of the connecting seat, and a first rubber pad is fixedly connected to the top of the head pad. A sliding mechanism for sliding the head pad is provided inside the connecting seat, and a fixing mechanism is provided on the top of the base. This utility model, through the design of the head pad, allows for easy rotation and adjustment of the head position during use, thereby improving ease of use. Simultaneously, by bringing the two vertical rods close together, the two clamps can restrict the head position, thus achieving a fixing effect and improving the effectiveness of the device.

Description

Technical Field

[0001] This utility model relates to the field of head fixation device technology, and in particular to a head fixation device for cerebral angiography. Background Technology

[0002] Cerebral angiography is a medical imaging technique primarily used to assess the structure and function of cerebral blood vessels. Using contrast agents, doctors can observe the condition of cerebral blood vessels under X-ray, CT (computed tomography), or MRI (magnetic resonance imaging). This examination is commonly used to diagnose various cerebrovascular diseases, such as aneurysms, vascular stenosis, thrombosis, and other vascular abnormalities. While cerebral angiography is an effective diagnostic tool, it also carries certain risks. Typically, the patient's head needs to be immobilized before the procedure to prevent movement during the examination.

[0003] In existing cerebral angiography imaging procedures, the patient's head usually needs to be adjusted first. However, when adjusting the head angle, the head usually needs to be raised, which is quite difficult when the patient is lying down, making the examination process cumbersome. Moreover, the patient is prone to slight movement during the examination, which can affect the structures being examined. Therefore, it is necessary to design a head fixation device for cerebral angiography to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a head fixation device for cerebral angiography.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A head fixation device for cerebral angiography includes a base and a head pad. A connecting seat is fixedly connected to the top of the base. The top of the connecting seat is annular. Two horizontal sliding grooves are opened on the top of the base, and the two sliding grooves are respectively located at both ends of the connecting seat. A first connecting groove is provided at both ends of the base. The two sliding grooves are respectively connected to the two first connecting grooves. The head pad is slidably connected to the annular part of the top of the connecting seat. A first rubber pad is fixedly connected to the top of the head pad. A sliding mechanism for sliding the head pad is provided inside the connecting seat. A fixing mechanism is provided on the top of the base. The head pad allows for easy rotation and adjustment of the head position during use, thereby improving ease of use. At the same time, by bringing the two vertical rods close to each other, the two clamps can restrict the head position, thereby achieving a fixing effect and improving the effectiveness of the device.

[0007] Preferably, an arc-shaped support plate is fixedly connected to the top of the base surface. The arc-shaped support plate is disposed on one side of the connecting seat surface. The top of the arc-shaped support plate is arc-shaped and has a groove for supporting the neck position, thereby providing comfort.

[0008] Furthermore, the sliding mechanism includes an arc-shaped strip, and an arc-shaped groove is formed on the top arc surface of the connecting seat. Roller grooves are formed on opposite sides inside the arc-shaped groove, and the roller grooves are arranged in a ring. The ends of the arc-shaped groove and the roller grooves respectively penetrate through both ends of the connecting seat. The arc-shaped strip is fixedly connected to the bottom of the headrest and slidably connected inside the arc-shaped groove. Multiple rollers are rotatably connected to opposite sides inside the roller groove, and the multiple rollers are rotatably connected to symmetrical sides of the arc-shaped strip surface. Multiple fixed shafts are horizontally fixedly connected to symmetrical sides of the arc-shaped strip surface, and the multiple fixed shafts are evenly distributed in a ring. The multiple rollers are rotatably sleeved on the outer surface of the multiple fixed shafts, which restricts the headrest from sliding more easily on the connecting seat, making it easier to adjust the position after placing the head on the headrest.

[0009] Preferably, the fixing mechanism includes two vertical rods, both of which are slidably connected to the top ends of the base. Both vertical rods are vertically aligned and slidably connected to the ends of the connecting seat. Each vertical rod is positioned at the top of one of the two sliding grooves. A clamping block is fixedly connected to the top of each vertical rod, and a second rubber pad is fixedly connected to the surface of each clamping block. A reinforcing rib is fixedly connected to the side of each vertical rod that is furthest from each other. A slider is fixedly connected to the bottom of each vertical rod, allowing the head position to be fixed via the two clamping blocks, thus achieving a positioning function.

[0010] Furthermore, two sliding rods are horizontally fixedly connected inside the base, and both sliding rods are disposed inside two first connecting grooves. Connecting blocks are fixedly connected to both symmetrical sides of the slider surface. Four connecting blocks are slidably sleeved on the outer surfaces of the two sliding rods. Two lead screws are rotatably connected inside the base, and the two lead screws are respectively disposed inside the two first connecting grooves. The two lead screws are rotatably sleeved at opposite ends inside the base. A second connecting groove is provided inside the base, located between the two first connecting grooves. The two lead screws are positioned close to each other at opposite ends. A coupling is rotatably connected inside the second connecting groove. The coupling is sleeved on one end of two lead screws that are close to each other. Both ends of the base are rotatably connected to knobs. The two knobs are respectively fixedly connected to the two lead screws that are far apart from each other. The two lead screws are rotatably sleeved inside two sliders. Each slider has a lead screw nut installed inside it. The two lead screws are rotatably sleeved inside the two lead screw nuts. The two lead screw nuts cooperate with the two lead screws to restrict the two sliders from sliding closer or further apart, so that the two vertical rods can slide simultaneously.

[0011] Preferably, both the first and second rubber pads are made of transparent rubber and are used to protect the head, thereby improving the comfort of the device.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. When in use, the first rubber pad on the surface of the head pad can protect the head. After the head is placed on the head pad, the multiple rollers at the bottom of the head pad can reduce the sliding resistance of the head pad on the top of the connecting seat, making it easy to adjust the angle after the head is placed on the head pad.

[0014] 2. By manually turning either of the two knobs, the two lead screws will rotate. At this time, the two lead screw nuts will cause the two sliders to slide closer to each other. Then, the two vertical rods will slide closer to each other simultaneously, and the head will be clamped by the filter clamp and the two second rubber pads to position the head. Attached Figure Description

[0015] Figure 1 This is a front view of a head fixation device for cerebral angiography proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the top structure of the base of a head fixation device for cerebral angiography proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the sliding mechanism of a head fixation device for cerebral angiography proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the bottom structure of a head fixation device for cerebral angiography proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the fixation mechanism of a head fixation device for cerebral angiography proposed in this utility model.

[0020] In the diagram: 1. Base; 11. Slide groove; 12. Connecting seat; 13. Arc groove; 14. Roller groove; 15. First connecting groove; 16. Second connecting groove; 17. Slide rod; 2. Arc support plate; 21. Groove; 3. Head pad; 31. First rubber pad; 32. Arc strip; 33. Fixed shaft; 34. Roller; 4. Vertical rod; 41. Clamping block; 42. Second rubber pad; 43. Reinforcing rib; 44. Slider; 45. Connecting block; 46. Lead screw nut; 5. Lead screw; 51. Coupling; 52. Knob. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 A head fixation device for cerebral angiography includes a base 1 and a head pad 3. A connecting seat 12 is fixedly connected to the top of the base 1. The top of the connecting seat 12 is annular. Two sliding grooves 11 are horizontally opened on the top of the base 1, and the two sliding grooves 11 are respectively located at both ends of the connecting seat 12. The two ends of the base 1 are provided with first connecting grooves 15, and the two sliding grooves 11 are respectively connected to the two first connecting grooves 15. The head pad 3 is slidably connected to the annular part of the top of the connecting seat 12. A first rubber pad 31 is fixedly connected to the top of the head pad 3. The connecting seat 12 is provided with a sliding mechanism for sliding the head pad 3. The top of the base 1 is provided with a fixing mechanism. The head pad 3 allows for easy rotation and adjustment of the head position during use, thereby improving ease of use. At the same time, by bringing the two vertical rods 4 close to each other, the two clamps 41 can restrict the head position, thereby playing a fixing role and improving the effectiveness of the device.

[0023] In this utility model, an arc-shaped support plate 2 is fixedly connected to the top of the surface of the base 1. The arc-shaped support plate 2 is disposed on one side of the surface of the connecting seat 12. The top of the arc-shaped support plate 2 is arc-shaped and has a groove 21 for supporting the neck position, thereby providing comfort.

[0024] In this utility model, the sliding mechanism includes an arc-shaped strip 32. An arc-shaped groove 13 is provided on the top arc surface of the connecting seat 12. Roller grooves 14 are provided on opposite sides inside the arc-shaped groove 13. The roller grooves 14 are arranged in a ring. The two ends of the arc-shaped groove 13 and the roller grooves 14 pass through the two ends of the connecting seat 12, respectively. The arc-shaped strip 32 is fixedly connected to the bottom of the head pad 3. The arc-shaped strip 32 is slidably connected to the inside of the arc-shaped groove 13. Multiple rollers 34 are rotatably connected to opposite sides inside the roller grooves 14. The multiple rollers 34 are rotatably connected to the symmetrical sides of the surface of the arc-shaped strip 32. Multiple fixed shafts 33 are horizontally fixedly connected to the symmetrical sides of the surface of the arc-shaped strip 32. The multiple fixed shafts 33 are evenly distributed in a ring. The multiple rollers 34 are rotatably sleeved on the outer surface of the multiple fixed shafts 33 to restrict the head pad 3 from sliding more easily on the connecting seat 12, so that the position can be adjusted more easily after the head is placed on the head pad 3.

[0025] In this utility model, the fixing mechanism includes two vertical rods 4. Both vertical rods 4 are slidably connected to the top two ends of the base 1. Both vertical rods 4 are vertically arranged and slidably connected to the two ends of the connecting seat 12. The two vertical rods 4 are respectively set on the top of the two sliding grooves 11. The top of each of the two vertical rods 4 is fixedly connected to a clamping block 41. The surface of each of the two clamping blocks 41 is fixedly connected to a second rubber pad 42. The two vertical rods 4 are fixedly connected to a reinforcing rib 43 on the side away from each other. The bottom of each of the two vertical rods 4 is fixedly connected to a slider 44, which is used to fix the head position through the two clamping blocks 41, thereby playing a positioning role.

[0026] In this invention, two sliding rods 17 are horizontally fixedly connected inside the base 1. Both sliding rods 17 are located inside two first connecting grooves 15. Connecting blocks 45 are fixedly connected symmetrically on both sides of the surface of the slider 44. The four connecting blocks 45 are slidably sleeved on the outer surfaces of the two sliding rods 17. Two lead screws 5 are rotatably connected inside the base 1. The two lead screws 5 are respectively located inside the two first connecting grooves 15, with one end of each lead screw 5 rotatably sleeved at one end inside the base 1. A second connecting groove 16 is provided inside the base 1, located between the two first connecting grooves 15. The two lead screws 5 rotate with one end close to each other. A coupling 51 is rotatably connected inside the second connecting groove 16. The coupling 51 is sleeved on the two lead screws 5 at one end close to each other. A knob 52 is rotatably connected to both ends of the base 1. The two knobs 52 are respectively fixedly connected to the two lead screws 5 at one end far from each other. The two lead screws 5 are rotatably sleeved inside the two sliders 44. A lead screw nut 46 is installed inside the two sliders 44. The two lead screws 5 are rotatably sleeved inside the two lead screw nuts 46. The two lead screw nuts 46 cooperate with the two lead screws 5 to limit the sliding of the two sliders 44 to move closer or further apart, so that the two vertical rods 4 can slide simultaneously.

[0027] In this invention, the first rubber pad 31 and the second rubber pad 42 are both made of transparent rubber and are used to protect the head and improve the comfort of the device.

[0028] Working principle: When in use, the device can be installed at the head detection position, and the head can be placed on the head pad 3. The first rubber pad 31 on the surface of the head pad 3 can protect the head. After the head is placed on the head pad 3, the multiple rollers 34 at the bottom of the head pad 3 can reduce the sliding resistance of the head pad 3 on the top of the connecting seat 12, making it easy to adjust the angle after the head is placed on the head pad 3. After the head angle is adjusted, either of the two knobs 52 can be turned manually, which will drive the two lead screws 5 to rotate. At this time, the two sliders 44 will slide closer to each other through the connection of the two lead screw nuts 46. Then, the two vertical rods 4 will slide closer to each other simultaneously, and the head can be clamped by the filter clamp 41 and the two second rubber pads 42 to position the head.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A head fixation device for cerebral angiography, comprising a base (1) and a head cushion (3), characterized in that: The base (1) is fixedly connected to the top of the connecting seat (12), the top of the connecting seat (12) is arranged in a ring shape, and the top of the base (1) has two horizontally opened sliding grooves (11). The two sliding grooves (11) are respectively arranged at both ends of the connecting seat (12). The base (1) has a first connecting groove (15) at both ends inside, and the two sliding grooves (11) are respectively connected to the two first connecting grooves (15). The head pad (3) is slidably connected to the top ring of the connecting seat (12). A first rubber pad (31) is fixedly connected to the top of the head pad (3). The connecting seat (12) is provided with a sliding mechanism for the sliding head pad (3). The base (1) is provided with a fixing mechanism on the top.

2. The head fixation device for cerebral angiography according to claim 1, characterized in that, An arc-shaped support plate (2) is fixedly connected to the top of the surface of the base (1). The arc-shaped support plate (2) is disposed on one side of the surface of the connecting seat (12). The top of the arc-shaped support plate (2) is arc-shaped and has a groove (21).

3. The head fixation device for cerebral angiography according to claim 1, wherein The sliding mechanism includes an arc-shaped strip (32), and an arc-shaped groove (13) is provided on the top arc surface of the connecting seat (12). Roller grooves (14) are provided on opposite sides inside the arc-shaped groove (13). The roller grooves (14) are arranged in a ring. The two ends of the arc-shaped groove (13) and the roller grooves (14) respectively pass through the two ends of the connecting seat (12). The arc-shaped strip (32) is fixedly connected to the bottom of the head pad (3), and the arc-shaped strip (32) is slidably connected inside the arc-shaped groove (13).

4. A head fixation device for cerebral angiography according to claim 3, characterized in that, Multiple rollers (34) are rotatably connected to opposite sides inside the roller groove (14). The multiple rollers (34) are rotatably connected to the symmetrical sides of the surface of the arc strip (32). Multiple fixed shafts (33) are horizontally fixedly connected to the symmetrical sides of the surface of the arc strip (32). The multiple fixed shafts (33) are evenly distributed in a ring. The multiple rollers (34) are rotatably sleeved on the outer surface of the multiple fixed shafts (33).

5. A head fixation device for cerebral angiography according to claim 1, characterized in that, The fixing mechanism includes two vertical rods (4), both of which are slidably connected to the top two ends of the base (1). Both vertical rods (4) are vertically arranged and slidably connected to the two ends of the connecting seat (12). The two vertical rods (4) are respectively located on the top of the two sliding grooves (11).

6. A head fixation device for cerebral angiography according to claim 5, characterized in that, Each of the two vertical rods (4) has a clamping block (41) fixedly connected to its top end. Each of the two clamping blocks (41) has a second rubber pad (42) fixedly connected to its surface. Each of the two vertical rods (4) has a reinforcing rib (43) fixedly connected to its side away from each other. Each of the two vertical rods (4) has a slider (44) fixedly connected to its bottom end. The base (1) has two sliding rods (17) fixedly connected horizontally inside. Each of the two sliding rods (17) is located inside the two first connecting grooves (15). Each of the two sliders (44) has a connecting block (45) fixedly connected to both sides of its surface. The four connecting blocks (45) are slidably sleeved on the outer surface of the two sliding rods (17).

7. A head fixation device for cerebral angiography according to claim 6, characterized in that, The base (1) is rotatably connected to two lead screws (5), which are respectively located inside two first connecting grooves (15). The two lead screws (5) are rotatably sleeved at both ends of the base (1) with one end away from the other. The base (1) is provided with a second connecting groove (16), which is located between the two first connecting grooves (15).

8. A head fixation device for cerebral angiography according to claim 7, characterized in that, The two lead screws (5) are rotatably connected to the second connecting groove (16) at one end close to each other. The second connecting groove (16) is rotatably connected to a coupling (51). The coupling (51) is sleeved on the two lead screws (5) at one end close to each other. The two ends of the base (1) are rotatably connected to knobs (52). The two knobs (52) are respectively fixedly connected to the two lead screws (5) at one end far from each other. The two lead screws (5) are rotatably sleeved inside the two sliders (44). The two sliders (44) are each equipped with a lead screw nut (46). The two lead screws (5) are rotatably sleeved inside the two lead screw nuts (46). The two lead screw nuts (46) cooperate with the two lead screws (5).

9. A head fixation device for cerebral angiography according to claim 6, characterized in that, Both the first rubber pad (31) and the second rubber pad (42) are made of transparent rubber.

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