Head supporting structure for CT scanning

Abstract

The utility model relates to the technical field of supporting structures, and discloses a head supporting structure for CT (computed tomography) scanning, which comprises a base, a rotating plate is rotatably mounted at one end of the base, an adjusting mechanism is arranged between the rotating plate and the base, and the adjusting mechanism comprises a mounting frame fixedly mounted on the lower surface of the base. A dovetail sliding groove is formed in the upper surface of the mounting frame, and a dovetail sliding seat is slidably mounted on the inner wall of the dovetail sliding groove. The second knob is manually rotated, so that the second knob drives the screw rod to rotate, the screw rod drives the dovetail sliding seat to move back and forth along the dovetail sliding groove, the dovetail sliding seat drives the supporting rod to move, the supporting rod drives the rotating plate to rotate up and down, and the rotating plate is adjusted to a certain angle. The irradiation angle of the head is flexibly adjusted, and the use practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting structures, in particular to a head supporting structure for CT scanning. Background Art

[0002] PET / CT (positron emission computed tomography) is a nuclear medicine imaging device that uses positron technology and human molecular information to simultaneously obtain the functional metabolic status of the lesion site and the precise positioning information of the anatomical structure. It plays an important role in guiding the diagnosis and treatment of tumors, heart, and brain diseases.

[0003] An existing head positioning device for cranial CT scanning (Announcement No.: CN219048561U) has at least the following disadvantages:

[0004] When the above patent is in use, the patient places the head between the airbags, which are then inflated so that the airbags expand and clamp the patient's head. Since some patients need to have their heads tested at different angles during CT scans, the above patent cannot adjust the fixed angle of the patient's head, resulting in some angles being unable to be detected during head testing, greatly reducing the practicality of the device. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a head support structure for CT scanning.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A head support structure for CT scanning comprises a base, a rotating plate is rotatably mounted on one end of the base, an adjustment mechanism is arranged between the rotating plate and the base, the adjustment mechanism comprises a mounting frame fixedly mounted on the lower surface of the base, a dovetail slot is provided on the upper surface of the mounting frame, a dovetail slide is slidably mounted on the inner wall of the dovetail slot, a support rod is rotatably mounted on the upper surface of the dovetail slide, the top end of the support rod is rotatably mounted on the lower surface of the rotating plate, a lead screw is rotatably mounted between the inner walls at opposite ends of the mounting frame, the lead screw passes through the outer surface of the dovetail slide and is threadedly connected thereto, one end of the lead screw close to the rotating plate passes through the outer surface of the mounting frame and a second knob is fixedly mounted thereon, and a clamping assembly is arranged on the rotating plate.

[0008] As a further solution of the utility model, the clamping assembly includes an opening penetrating through the upper surface of the rotating plate, and two fan-shaped worm gears are symmetrically mounted on the inner wall of the opening for rotation, and the rotation directions of the two fan-shaped worm gears are opposite.

[0009] As a further solution of the utility model, a rotating arm is fixed to the circumferential outer surface of the two sector-shaped worm gears close to the upper surface of the rotating plate, and a clamping plate is rotatably installed between the inner walls at the top ends of the rotating arms.

[0010] As a further solution of the utility model, two support plates are symmetrically fixedly installed on the lower surface of the rotating plate, a rotating shaft is rotatably installed between the two support plates, two worm gears are symmetrically fixedly installed on the outer surface of the rotating shaft, the two worm gears are arranged with opposite rotation directions, and the worm gears are meshed with the fan-shaped worm wheel.

[0011] As a further solution of the utility model, one end of the rotating shaft passes through the outer surface of one of the support plates and is fixedly mounted with a first knob.

[0012] As a further solution of the utility model, a headrest is fixedly mounted on the upper surface of the rotating plate, the headrest is arranged between two clamping plates, and the outer surface of the headrest and the clamping plates are both covered with rubber sleeves.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By manually turning the second knob, the second knob drives the screw rod to rotate, and the screw rod drives the dovetail slide to move forward and backward along the dovetail slide groove, so that the dovetail slide drives the support rod to move, and the support rod drives the rotating plate to rotate up and down, so that the rotating plate is adjusted to a certain angle. Through this device, the irradiation angle of the head can be flexibly adjusted according to the patient's condition, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a head support structure for CT scanning proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the upward structure of a head support structure for CT scanning proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of a head support structure for CT scanning proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of a fan-shaped worm gear of a head support structure for CT scanning proposed by the utility model.

[0019] In the figure: 1. base; 2. rotating plate; 3. mounting frame; 4. headrest; 5. opening; 6. rotating arm; 7. clamping plate; 8. fan-shaped worm gear; 9. worm; 10. first knob; 11. support rod; 12. second knob; 13. dovetail slide; 14. screw; 15. dovetail slide. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Reference Figure 1-Figure 4 A head support structure for CT scanning includes a base 1, a rotating plate 2 is rotatably installed at one end of the base 1, an adjustment mechanism is provided between the rotating plate 2 and the base 1, the adjustment mechanism includes a mounting frame 3 fixedly installed on the lower surface of the base 1, a dovetail slot 13 is provided on the upper surface of the mounting frame 3, a dovetail slide 15 is slidably installed on the inner wall of the dovetail slot 13, a support rod 11 is rotatably installed on the upper surface of the dovetail slide 15, the top of the support rod 11 is rotatably installed on the lower surface of the rotating plate 2, a screw rod 14 is rotatably installed between the inner walls of the opposite ends of the mounting frame 3, the screw rod 14 passes through the outer surface of the dovetail slide 15 and is threadedly connected thereto, and an end of the screw rod 14 close to the rotating plate 2 passes through the outer surface of the mounting frame 3 and is fixedly installed with a second knob 12.

[0024] During use, the patient first lies on the base 1 with the head placed on the upper surface of the headrest 4. Then the medical staff manually turns the second knob 12 according to the position of the head that needs to be irradiated, so that the second knob 12 drives the screw rod 14 to rotate, and the screw rod 14 drives the dovetail slide 15 to move forward and backward along the dovetail slide groove 13, so that the dovetail slide 15 drives the support rod 11 to move, and the support rod 11 drives the rotating plate 2 to rotate up and down, so that the rotating plate 2 is adjusted to a certain angle. Through this device, the irradiation angle of the head can be flexibly adjusted according to the patient's condition, thereby improving the practicability of the device.

[0025] In this embodiment, a clamping assembly is provided on the rotating plate 2, and the clamping assembly includes an opening 5 that passes through the upper surface of the rotating plate 2. Two fan-shaped worm gears 8 are symmetrically and rotatably installed on the inner wall of the opening 5. The rotation directions of the two fan-shaped worm gears 8 are oppositely set. A rotating arm 6 is fixed on the circumferential outer surface of the two fan-shaped worm gears 8 close to the upper surface of the rotating plate 2. A splint 7 is rotatably installed between the inner walls of the top of the rotating arm 6. The rotatable installation of the splint 7 can adapt to the patient's head shape and facilitate stable clamping. Two support plates are symmetrically and fixedly installed on the lower surface of the rotating plate 2, and a rotating shaft is rotatably installed between the two support plates. Two worm screws 9 are symmetrically and fixedly installed on the outer surface of the rotating shaft. The rotation directions of the two worm screws 9 are oppositely set. The worm screws 9 are meshed with the fan-shaped worm gears 8, and one end of the rotating shaft passes through the outer surface of one of the support plates and is fixedly installed with a first knob 10.

[0026] The first knob 10 drives the rotating shaft to rotate, so that the rotating shaft drives the two worms 9 to rotate, and the worms 9 drive the two fan-shaped worm wheels 8 to rotate, so that the two fan-shaped worm wheels 8 drive the rotating arms 6 to move closer to each other, and the rotating arms 6 drive the splints 7 to move closer to each other, so as to fix the patient's head for subsequent CT detection.

[0027] In this embodiment, a headrest 4 is fixedly installed on the upper surface of the rotating plate 2, and the headrest 4 is arranged between two clamping plates 7. The outer surface of the headrest 4 and the clamping plates 7 are both covered with rubber sleeves. The flexibility of the rubber sleeves makes the patient's head more comfortable when fixed.

[0028] It should be noted that when the present invention is in use, the patient first lies on the base 1 with the head placed on the upper surface of the headrest 4, and then the medical staff manually turns the second knob 12 according to the position of the head that needs to be irradiated, so that the second knob 12 drives the screw rod 14 to rotate, and the screw rod 14 drives the dovetail slide 15 to move forward and backward along the dovetail slide groove 13, so that the dovetail slide 15 drives the support rod 11 to move, and the support rod 11 drives the rotating plate 2 to rotate up and down, so that the rotating plate 2 is adjusted to a certain angle. Through this device, the irradiation angle of the head can be flexibly adjusted according to the patient's condition, thereby improving the practicality of the device; the first knob 10 drives the rotating shaft to rotate, so that the rotating shaft drives the two worm gears 9 to rotate, and the worm gear 9 drives the two fan-shaped worm gears 8 to rotate in the direction, so that the two fan-shaped worm gears 8 drive the rotating arms 6 to move closer to each other, and the rotating arms 6 drive the splints 7 to move closer to each other, so that the patient's head is fixed, which is convenient for subsequent CT detection.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A head support structure for CT scanning, comprising a base (1), characterized in that: A rotating plate (2) is rotatably mounted on one end of the base (1), and an adjusting mechanism is provided between the rotating plate (2) and the base (1), wherein the adjusting mechanism comprises a mounting frame (3) fixedly mounted on the lower surface of the base (1), a dovetail slide groove (13) is provided on the upper surface of the mounting frame (3), a dovetail slide seat (15) is slidably mounted on the inner wall of the dovetail slide groove (13), a support rod (11) is rotatably mounted on the upper surface of the dovetail slide seat (15), the top end of the support rod (11) is rotatably mounted on the lower surface of the rotating plate (2), a screw rod (14) is rotatably mounted between the inner walls at opposite ends of the mounting frame (3), the screw rod (14) passes through the outer surface of the dovetail slide seat (15) and is threadedly connected thereto, an end of the screw rod (14) close to the rotating plate (2) passes through the outer surface of the mounting frame (3) and is fixedly mounted with a second knob (12), and a clamping assembly is provided on the rotating plate (2).

2. A head support structure for CT scanning according to claim 1, characterized in that: The clamping assembly comprises an opening (5) extending through the upper surface of the rotating plate (2), and two sector-shaped worm gears (8) are symmetrically mounted on the inner wall of the opening (5), wherein the rotation directions of the two sector-shaped worm gears (8) are opposite.

3. The head support structure for CT scanning according to claim 2, characterized in that: A rotating arm (6) is fixed to the circumferential outer surface of the two fan-shaped worm wheels (8) close to the upper surface of the rotating plate (2), and a clamping plate (7) is rotatably mounted between the inner walls of the top ends of the rotating arms (6).

4. The head support structure for CT scanning according to claim 3, characterized in that: Two support plates are symmetrically fixedly mounted on the lower surface of the rotating plate (2), a rotating shaft is rotatably mounted between the two support plates, two worm gears (9) are symmetrically fixedly mounted on the outer surface of the rotating shaft, the two worm gears (9) are arranged with opposite rotation directions, and the worm gears (9) are meshed with the fan-shaped worm wheel (8).

5. The head support structure for CT scanning according to claim 4, characterized in that: One end of the rotating shaft passes through the outer surface of one of the support plates and is fixedly mounted with a first knob (10).

6. The head support structure for CT scanning according to claim 5, characterized in that: A headrest (4) is fixedly mounted on the upper surface of the rotating plate (2); the headrest (4) is arranged between two clamping plates (7); and the outer surface of the headrest (4) and the clamping plates (7) are both covered with rubber sleeves.

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