Head fixing device

Abstract

The utility model relates to the technical field of tumor radiation, in particular to a head fixing device which comprises a mounting seat, a fixing frame is fixedly mounted at the upper end of the mounting seat, a screw rod is in threaded connection with the interior of the fixing frame, a limiting rod is fixedly mounted in the mounting seat, and a connecting plate is slidably arranged outside the limiting rod in a sleeved mode. An arc plate is fixedly mounted at the end of the connecting plate, the bottom of the screw is rotatably connected with the upper end of the arc plate, first check curtains are fixedly mounted at the two ends of the arc plate, second check curtains are fixedly mounted on the two sides of the arc plate, and a clamping mechanism is further arranged on the inner side of the mounting base. The head fixing device can limit, shield and protect the head and the body of an examined patient, and is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of tumor radiotherapy, in particular to a head fixing device. Background Art

[0002] The radiology department is an important auxiliary examination department in the hospital. Many diseases in various clinical departments need to be examined by radiology department equipment to achieve definite diagnosis and auxiliary diagnosis. When a patient's chest is examined by equipment, the patient will deliberately restrain and keep the chest position still, but the patient's head may move uncontrollably. The movement of the patient's head will affect the examination efficiency of the chest. In order to avoid such a state, it is necessary to fix the patient's head. Similarly, when the patient's head needs to be examined, it is also necessary to fix the patient's chest position. However, in the case of the existing technology, it is not convenient to adjust the position of the fixing device according to specific needs to clamp and fix different parts of the patient. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the defect that it is inconvenient to adjust the position of the fixing device in the existing technology, and to propose a head fixing device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] Design a head fixing device, including a mounting base. A fixing frame is fixedly installed at the upper end of the mounting base. A screw rod is threadedly connected inside the fixing frame. A limiting rod is fixedly installed inside the mounting base. A connecting plate is slidably sleeved outside the limiting rod. An arc plate is fixedly installed at the end of the connecting plate. The bottom of the screw rod is rotationally connected to the upper end of the arc plate. First curtain screens are fixedly installed at both ends of the arc plate, and second curtain screens are fixedly installed on both sides. A clamping mechanism is further arranged inside the mounting base.

[0006] Preferably, the length direction of the screw rod is vertically arranged and parallel to the limiting rod, and the extension line of the length of the screw rod passes through the center point of the arc of the arc plate.

[0007] Preferably, a slider is fixedly installed at the bottom of the mounting base. A lead screw is threadedly penetrated through the slider. The lead screw is rotatably arranged inside the CT bed.

[0008] Preferably, both the first curtain screen and the second curtain screen are made of a lead cloth structure inside.

[0009] Preferably, the clamping mechanism includes a support rod. The end of the support rod extending inside the mounting seat is fixedly installed with a kit. The end of the kit is fixedly installed with a clamping plate. The end of the support rod extending through the outside of the mounting seat is fixedly installed with a protrusion. A spring is fixedly connected to the end of the protrusion close to the support rod. The spring is sleeved outside the support rod, and its end is fixedly connected to the outer surface of the mounting seat. A pressing plate is fixedly installed at the outer end of the connecting plate, and the lower surface of the pressing plate contacts the protrusion.

[0010] Preferably, the end of the pressing plate away from the connecting plate is inclined downward.

[0011] Preferably, the kit consists of a sphere and a ball sleeve rotatably sleeved outside the sphere. The sphere is fixedly connected to the support rod, and the ball sleeve is fixedly connected to the clamping plate.

[0012] A head fixing device proposed by the present utility model has the beneficial effects that: during the working process of the head fixing device, the screw rod can drive the slider to move, the movement of the slider can drive the mounting seat to move, and the movement of the mounting seat can drive the arc plate to move, which is convenient to move the arc plate to the position where the patient needs to be blocked. The clamping mechanism can clamp and limit the body part of the patient, and the position of the clamping mechanism can be adjusted according to different needs, which is convenient to clamp and fix different parts of different patients. By rotating the screw, the height of the arc plate can be adjusted, and the body parts of patients with different body types can be blocked by the first curtain and the second curtain, with high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic cross-sectional structure view of a head fixing device proposed by the present utility model in the horizontal direction;

[0014] Figure 2 is a schematic longitudinal cross-sectional structure view of a head fixing device proposed by the present utility model;

[0015] Figure 3 is a schematic bottom view structure view of a head fixing device proposed by the present utility model;

[0016] Figure 4 is a schematic side view structure view of a head fixing device proposed by the present utility model.

[0017] In the figure: 1, mounting seat; 2, screw rod; 3, slider; 4, limiting rod; 5, connecting plate; 6, arc plate; 7, first curtain; 8, second curtain; 9, clamping plate; 10, kit; 11, support rod; 12, spring; 13, protrusion; 14, pressing plate; 15, fixing bracket; 16, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] Embodiment 1: Refer to Figures 1 - 4 , a head fixing device, including a mounting base 1, a fixing frame 15 is fixedly installed at the upper end of the mounting base 1, a screw rod 16 is threadedly connected inside the fixing frame 15, a limiting rod 4 is fixedly installed inside the mounting base 1, a connecting plate 5 is slidably sleeved outside the limiting rod 4, an arc plate 6 is fixedly installed at the end of the connecting plate 5, the bottom of the screw rod 16 is rotatably connected to the upper end of the arc plate 6. When the screw rod 16 is rotated, the screw rod 16 can move up and down inside the fixing frame 15, so that the arc plate 6 can be driven to move up and down by the screw rod 16. The length direction of the screw rod 16 is vertically arranged and parallel to the limiting rod 4, and the connecting plate 5 will move up and down along the limiting rod 4. The extension line of the length of the screw rod 16 passes through the center point of the arc of the arc plate 6. The cross section of the arc plate 6 is semi-elliptical, and the arc plate 6 is used to block above the patient's body. First curtain 7 is fixedly installed at both ends of the arc plate 6, and second curtain 8 is fixedly installed on both sides. Both the first curtain 7 and the second curtain 8 are made of a lead cloth structure. The two bent ends of the arc plate 6 are connected to the first curtain 7. The first curtain 7 blocks both sides of the patient's body. The second curtain 8 is used to block the gap between the arc plate 6 and the patient's body. The body of patients with different body types can be blocked by the first curtain 7 and the second curtain 8.

[0020] A clamping mechanism is further provided inside the mounting base 1. The clamping mechanism can clamp and limit the patient's body. If the patient needs to be examined on the head, then by clamping the patient's chest and abdomen position through the clamping mechanism, it can be avoided that the movement of the patient's chest and abdomen position drives the head to shift, thereby avoiding affecting the examination of the head; if the patient needs to be examined on the chest position, then by clamping the patient's head position through the clamping mechanism, it can be avoided that the movement of the patient's head position drives the chest to shift, thereby avoiding affecting the examination of the chest position.

[0021] A slider 3 is fixedly installed at the bottom of the mounting base 1. A lead screw 2 is threadedly penetrated inside the slider 3. The lead screw 2 is rotatably arranged inside the CT bed. The length direction of the lead screw 2 is consistent with the length direction of the CT bed. The end of the lead screw 2 is connected to an external power device. By driving the lead screw 2 to rotate through the external power device, the rotation of the lead screw 2 can drive the slider 3 to slide, the sliding of the slider 3 can drive the mounting base 1 to move, and the movement of the mounting base 1 can drive the whole device to move.

[0022] When the patient lies on the CT bed, if the patient needs to be examined at the chest position, the external power device is activated to drive the lead screw 2 to rotate. The lead screw 2 drives the mounting seat 1 to move to the head position of the patient. The arc plate 6 is driven to move downward by rotating the screw 16. The first curtain 7 is used to block both sides of the patient's head, and the second curtain 8 can block the top of the patient's head and the chin. At this time, the lower body position of the patient is exposed and needs to be covered and protected by a lead apron. The clamping mechanism can clamp and limit the patient's head, which can prevent the movement of the patient's head from affecting the examination of the patient's chest position. If the patient needs to be examined at the head position, the mounting seat 1 is driven by the lead screw 2 to move to the upper body position of the patient. The height of the arc plate 6 is adjusted by rotating the screw 16 to adapt to patients of different body types. The first curtain 7 is used to block both sides of the patient's body, and the second curtain 8 can block the patient's chin and the lower body position. The clamping mechanism can clamp and limit the patient's waist, which can prevent the movement of the patient's waist from affecting the examination of the patient's head position.

[0023] Working principle: During the operation of this head fixing device, when the patient lies on the CT bed, driving the lead screw 2 to rotate can drive the slider 3 to move. The movement of the slider 3 can drive the mounting seat 1 to move. The movement of the mounting seat 1 can drive the arc plate 6 to move, so that the arc plate 6 moves to the position where the patient needs to be blocked. First, the clamping mechanism clamps and limits the patient's body part. The height of the arc plate 6 is adjusted by rotating the screw 16. The first curtain 7 and the second curtain 8 are used to block the patient's body part. This device can not only clamp and fix the patient's head position, but also clamp and fix the patient's chest position, and at the same time can also block and protect the corresponding positions, with high safety.

[0024] Example 2: Refer to Figures 1 - 4 , as another preferred embodiment of the present invention, on the basis of Embodiment 1, the clamping mechanism includes a support rod 11. The end of the support rod 11 extending to the inside of the mounting seat 1 is fixedly installed with a kit 10. The end of the kit 10 is fixedly installed with a clamping plate 9. The kit 10 is composed of a sphere and a ball sleeve rotatably sleeved outside the sphere. The sphere is fixedly connected to the support rod 11, and the ball sleeve is fixedly connected to the clamping plate 9. The clamping plate 9 can rotate around the end of the support rod 11 through the kit. When the clamping plate 9 contacts the patient's body, it can rotate. The clamping plate 9 can rotate adaptively according to the bending condition of the patient's body part, which can improve the comfort of clamping by the clamping plate 9.

[0025] A protrusion 13 is fixedly installed at the end of the support rod 11 that penetrates and extends to the outside of the mounting seat 1. A spring 12 is fixedly connected to the end of the protrusion 13 close to the support rod 11. The spring 12 is sleeved outside the support rod 11, and its end is fixedly connected to the outer surface of the mounting seat 1. A pressing plate 14 is fixedly installed at the outer end of the connecting plate 5. The lower surface of the pressing plate 14 contacts the protrusion 13. The end of the pressing plate 14 away from the connecting plate 5 is inclined downward. When the arc plate 6 is driven downward by the screw rod 16, the arc plate 6 drives the pressing plate 14 downward through the connecting plate 5. The downward movement of the pressing plate 14 will squeeze the protrusion 13. The protrusion 13 will move inward toward the mounting seat 1 under the extrusion, and the spring 12 will be compressed. The movement of the protrusion 13 will drive the clamping plate 9 to move inward toward the mounting seat 1 through the support rod 11. The clamping plates 9 can clamp the body part of the patient by approaching each other. When the clamping plates 9 clamp, they will push the first curtain 7 to deform, enabling the first curtain 7 to fit more closely to the patient's body. When the arc plate 6 is driven upward by the screw rod 16, the arc plate 6 drives the pressing plate 14 upward through the connecting plate 5. The extrusion effect of the pressing plate 14 on the protrusion 13 becomes smaller. The protrusion 13 will move outward under the elastic action of the spring 12, so that the clamping plates 9 can move away from each other. The distance between the clamping plates 9 can be adjusted according to specific situations, and patients of different body types can be clamped and fixed.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A head fixing device, comprising a mounting seat (1), characterized in that: A fixing frame (15) is fixedly mounted on the upper end of the mounting seat (1), a screw (16) is internally threadedly connected to the fixing frame (15), a limit rod (4) is fixedly mounted inside the mounting seat (1), a connecting plate (5) is provided on the external sliding sleeve of the limit rod (4), an arc plate (6) is fixedly mounted on the end of the connecting plate (5), the bottom of the screw (16) is rotatably connected to the upper end of the arc plate (6), a first stop curtain (7) is fixedly mounted on both ends of the arc plate (6), and a second stop curtain (8) is fixedly mounted on both sides, and a clamping mechanism is also provided on the inner side of the mounting seat (1).

2. The head fixing device according to claim 1, characterized in that: The screw rod (16) is arranged vertically in the length direction and is parallel to the limiting rod (4), and the length extension line of the screw rod (16) passes through the arc center point of the arc plate (6).

3. The head fixing device according to claim 1, characterized in that: A slider (3) is fixedly mounted on the bottom of the mounting seat (1); a screw rod (2) is provided through an internal thread of the slider (3); and the screw rod (2) is rotatably arranged inside the CT bed.

4. The head fixing device according to claim 1, characterized in that: The first barrier curtain (7) and the second barrier curtain (8) are both made of a lead cloth structure.

5. The head fixing device according to claim 1, characterized in that: The clamping mechanism comprises a support rod (11), the end of the support rod (11) extending to the inner side of the mounting seat (1) is fixedly mounted with a sleeve (10), the end of the sleeve (10) is fixedly mounted with a clamping plate (9), the end of the support rod (11) extending through the outer side of the mounting seat (1) is fixedly mounted with a protrusion (13), the end of the protrusion (13) close to the support rod (11) is fixedly connected with a spring (12), the spring (12) is sleeved on the outer side of the support rod (11), and the end of the spring (12) is fixedly connected to the outer side of the mounting seat (1), and the outer end of the connecting plate (5) is fixedly mounted with a pressure plate (14), and the lower surface of the pressure plate (14) is in contact with the protrusion (13).

6. The head fixing device according to claim 5, characterized in that: The pressing plate (14) is arranged to be inclined downwardly away from the end of the connecting plate (5).

7. The head fixing device according to claim 6, characterized in that: The kit (10) is composed of a sphere and a ball sleeve rotatably sleeved on the outside of the sphere; the sphere is fixedly connected to the support rod (11), and the ball sleeve is fixedly connected to the clamping plate (9).

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