Auxiliary head fixing device for CT (Computed Tomography) image examination

Abstract

The invention discloses an auxiliary head fixing device for CT (Computed Tomography) image examination. The auxiliary head fixing device comprises a mattress, a head support, a head fixing mechanism and a tongue back falling prevention mechanism, a head support is integrally arranged at the head end of the mattress, and limiting grooves are symmetrically formed in the head end of the mattress; the head fixing mechanism comprises a cross rod, a fixing plate, a sponge layer and a lead screw; the lead screw is rotationally connected with the head support, and cross rods are symmetrically arranged on the two sides of the lead screw. One end of the cross rod is slidably connected with the limiting groove, and the other end is provided with an L-shaped rod connected with the fixing plate; a sponge layer is detachably mounted on the fixing plate; the rear end of the head support is detachably provided with a tongue backward falling prevention mechanism; the tongue rear falling prevention mechanism comprises a fixed rod, a sliding rod, an adjusting screw rod, a tooth socket and a sliding block; the lower end of the fixing rod is fixedly connected with the head support. The upper end of the fixing rod is provided with a sliding hole for installing the sliding rod. A sleeve is integrally arranged at the front end of the sliding rod; the upper end of the sleeve is in threaded connection with an adjusting screw, and a sliding block is slidably connected into the sleeve; the upper end of the sliding block is rotationally connected with an adjusting screw rod, and the lower end extends out of a straight rod to be connected with a tooth socket.

Description

Technical Field

[0001] The present invention relates to the technical field of CT examination auxiliary equipment, and in particular to a head auxiliary fixing device for CT imaging examination. Background Art

[0002] CT scans use X-ray beams to scan the human body in a circular motion, acquiring a large amount of X-ray attenuation data from multiple angles. They generate three-dimensional images of the human body's interior, clearly showing the morphology, structure, and positional relationships of various tissues and organs. These images can be used for disease diagnosis, condition monitoring, and to guide interventional procedures.

[0003] In order to ensure the accuracy of CT examination results, patients must keep their heads stable and motionless for a period of time when undergoing a head CT examination. Therefore, when the patient is comatose, irritable, or is a child who likes to move around, a head CT fixation device is required.

[0004] Existing head CT fixation devices have numerous shortcomings. For one thing, these devices are often complex in structure and cumbersome to operate, making them unsuitable for rapid and efficient adjustment and fixation in clinical settings. Furthermore, patients in unconscious states, such as comas, are typically in a supine position during CT scans. In this position, patients are prone to glossoplegia, where the tongue slides backward into the throat, potentially blocking the airway and posing a serious threat to their safety.

[0005] The purpose of the present invention is to provide a head auxiliary fixation device for CT imaging examination to solve the above technical problems. Summary of the Invention

[0006] In order to solve the above technical problems of the prior art, the present invention is achieved through the following technical solutions:

[0007] A CT imaging examination head auxiliary fixation device, comprising: a mattress, a head support, a head fixation mechanism, and a tongue-falling prevention mechanism;

[0008] The head end of the mattress is integrally provided with a head support, and the head end of the mattress is symmetrically provided with limiting grooves;

[0009] The head fixing mechanism includes a cross bar, a fixing plate, a sponge layer, and a screw; the screw is rotatably connected to the head support, and cross bars are symmetrically arranged on both sides of the screw; one end of the cross bar is slidably connected to the limit groove, and the other end is provided with an L-shaped rod connected to the fixing plate; the sponge layer can be detachably installed on the fixing plate;

[0010] The rear end of the headrest can be detachably mounted with a tongue-preventing mechanism;

[0011] The tongue-fall prevention mechanism comprises a fixed rod, a sliding rod, an adjusting screw, a toothed brace, and a slider; the lower end of the fixed rod is fixedly connected to the head support, and the upper end of the fixed rod is provided with a sliding hole for mounting the sliding rod; a sleeve is integrally provided at the front end of the sliding rod; the upper end of the sleeve is threadedly connected to the adjusting screw, and the inside of the sleeve is slidably connected to the slider; the upper end of the slider is rotatably connected to the adjusting screw, and a straight rod extends from the lower end to connect to the toothed brace;

[0012] Furthermore, the upper end of the head support is provided with an arc-shaped support surface for supporting the head, and the outer wall of the head support is provided with a silicone layer to improve the comfort of supporting the head;

[0013] Furthermore, the screw is connected to the crossbar screws on both sides of the mattress, and the screw controls the crossbars on both sides to move closer or farther away synchronously, driving the sponge layer to cooperate with the fixing plate to clamp and fix the patient's head;

[0014] Furthermore, the thickness of the sponge layer ranges from 4 to 6 cm, ensuring that the sponge layer can fit the human head comfortably;

[0015] Furthermore, a rack is provided at the upper end of the slide rod; a screw hole is provided on the wall of the fixed rod at the upper end of the slide hole to install a fixed screw; the lower end of the fixed screw is rotatably connected to the pressure plate; the lower end of the pressure plate is provided with a latching tooth movably connected to the slide rod;

[0016] Furthermore, the braces are annular braces made of silicone; a pressure film is provided on the inner side of the braces to press the patient's tongue to prevent the tongue from falling back.

[0017] The beneficial effects of the present invention are:

[0018] The present invention discloses an auxiliary head fixation device for CT imaging examinations, comprising: a mattress, a head support, a head fixation mechanism, and a tongue-fall prevention mechanism. The head support and the head fixation mechanism are provided, and the head support having an arc-shaped support surface cooperates with a fixation plate that can simultaneously move toward and away from both sides of the head to clamp the patient's head, thereby achieving stable support for the head of a comatose patient. A 4-6 cm sponge layer is provided on the fixation plate. When the sponge layer is clamped by the fixation plate against the patient's head, it is squeezed by the head and automatically deformed to fit the shape of the human head, thereby ensuring the stability of the head fixation and avoiding damage to the patient's head.

[0019] The present invention provides a tongue-fall-prevention mechanism, which controls the sliding and fixing of the slide rod by a fixed screw to ensure that the braces are located above the oral cavity, and then controls the braces to descend and be placed in the human oral cavity by an adjusting screw, and the pressure film presses the patient's tongue to prevent the tongue from falling back. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of a head auxiliary fixation device for CT imaging examination;

[0022] Figure 2 A is a partially enlarged structural diagram of a head auxiliary fixation device for CT imaging examination;

[0023] Figure 3 It is a schematic diagram of the partial cross-section structure of a head auxiliary fixation device for CT imaging examination;

[0024] Figure 4 It is a partially enlarged structural schematic diagram B of a head auxiliary fixation device for CT imaging examination.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1- mattress, 101- slide, 2- head support, 3- cross bar, 301- L-shaped rod, 302- fixed plate, 303- sponge layer, 304- lead screw, 4- fixed rod, 401- slide bar, 402- fixed screw, 4021- pressure plate, 4011- sleeve, 403- adjusting screw, 4031- slider, 404- braces, 4041- press film. DETAILED DESCRIPTION

[0027] In order to solve the problems existing in the prior art of the auxiliary head fixation device for CT imaging examination, the present invention discloses an auxiliary head fixation device for CT imaging examination, comprising: a mattress 1, a head support 2, a head fixing mechanism, and a tongue-falling prevention mechanism;

[0028] The head end of the mattress 1 is integrally provided with a head support 2, and the head end of the mattress 1 is symmetrically provided with a limiting groove;

[0029] The head fixing mechanism includes a cross bar 3, a fixing plate 302, a sponge layer 303, and a sponge layer 304; the sponge layer 304 is rotatably connected to the head support 2, and cross bars 3 are symmetrically arranged on both sides of the sponge layer 304; one end of the cross bar 3 is slidably connected to the limit groove, and the other end is provided with an L-shaped rod 301 connected to the fixing plate 302; the sponge layer 303 is detachably mounted on the fixing plate 302;

[0030] The rear end of the headrest 2 can be detachably mounted with a tongue-preventing mechanism;

[0031] The tongue-fall prevention mechanism includes a fixed rod 4, a slide rod 401, an adjusting screw 403, a tooth brace 404, and a slider 4031; the lower end of the fixed rod 4 is fixedly connected to the head support 2, and the upper end of the fixed rod 4 is provided with a sliding hole for mounting the slide rod 401; a sleeve 4011 is integrally provided at the front end of the slide rod 401; the upper end of the sleeve 4011 is threadedly connected to the adjusting screw 403, and the interior of the sleeve 4011 is slidably connected to the slider 4031; the upper end of the slider 4031 is rotatably connected to the adjusting screw 403, and a straight rod extends from the lower end to connect to the tooth brace 404;

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Example 1

[0034] like Figure 1-4 The figure shows a schematic structural diagram of a head auxiliary fixation device for CT imaging examination according to the present invention. In the present invention, a mattress 1, a head support 2, a head fixation mechanism, and a tongue-falling prevention mechanism are provided.

[0035] The head end of the mattress 1 is integrally provided with a head support 2, and the head end of the mattress 1 is symmetrically provided with a limiting groove;

[0036] The head fixing mechanism includes a cross bar 3, a fixing plate 302, a sponge layer 303, and a sponge layer 304; the sponge layer 304 is rotatably connected to the head support 2, and cross bars 3 are symmetrically arranged on both sides of the sponge layer 304; one end of the cross bar 3 is slidably connected to the limit groove, and the other end is provided with an L-shaped rod 301 connected to the fixing plate 302; the sponge layer 303 is detachably mounted on the fixing plate 302;

[0037] The rear end of the headrest 2 can be detachably mounted with a tongue-preventing mechanism;

[0038] The tongue-fall prevention mechanism includes a fixed rod 4, a slide rod 401, an adjusting screw 403, a tooth brace 404, and a slider 4031; the lower end of the fixed rod 4 is fixedly connected to the head support 2, and the upper end of the fixed rod 4 is provided with a sliding hole for mounting the slide rod 401; a sleeve 4011 is integrally provided at the front end of the slide rod 401; the upper end of the sleeve 4011 is threadedly connected to the adjusting screw 403, and the interior of the sleeve 4011 is slidably connected to the slider 4031; the upper end of the slider 4031 is rotatably connected to the adjusting screw 403, and a straight rod extends from the lower end to connect to the tooth brace 404;

[0039] In this embodiment, the upper end of the head support 2 is provided with an arc-shaped support surface for supporting the head, and the outer wall of the head support 2 is provided with a silicone layer to improve the comfort of supporting the head;

[0040] In this embodiment, the sponge layer 304 is connected to the cross bars 3 on both sides of the mattress 1. The cross bars 3 on both sides are controlled by the sponge layer 304 to move closer or farther away synchronously, thereby driving the sponge layer 303 to cooperate with the fixing plate 302 to clamp and fix the patient's head.

[0041] In this embodiment, the thickness of the sponge layer 303 ranges from 4 to 6 cm, ensuring that the sponge layer 303 can fit the human head comfortably;

[0042] In this embodiment, a rack is provided at the upper end of the slide rod 401; a screw hole is provided on the wall of the fixed rod 4 at the upper end of the slide hole to install a fixed screw 402; the lower end of the fixed screw 402 is rotatably connected to the pressure plate 4021; the lower end of the pressure plate 4021 is provided with a latching tooth movably connected to the slide rod 401;

[0043] In this embodiment, the braces 404 are annular braces 404 made of silicone. A pressure film 4041 is provided on the inner side of the braces 404 to press the patient's tongue and prevent the tongue from falling back.

[0044] In this embodiment, to prevent the influence of metal substances on the CT scan image, the fixed screw 402, the adjusting screw 403, the sponge layer 304 and other components are all made of hard plastic, specifically ABS resin, polyethylene (PE), polypropylene (PP) and the like.

[0045] In this embodiment, a head support 2 and a head fixing mechanism are provided. The head support 2 with an arc-shaped support surface cooperates with a fixing plate 302 that can simultaneously move closer and farther from both sides of the head to clamp the patient's head, thereby achieving stable support for the head of a comatose patient. In addition, a 4-6 cm sponge layer 303 is provided on the fixing plate 302. When the sponge layer 303 is squeezed by the head and clamped by the fixing plate 302, it automatically deforms to fit the shape of the human head, thereby ensuring the stability of the head fixation and preventing damage to the patient's head.

[0046] The present invention is provided with a tongue-fall-prevention mechanism, which controls the sliding and fixing of the slide bar 401 by the fixing screw 402 to ensure that the braces 404 are located above the oral cavity, and then the adjusting screw 403 controls the braces 404 to descend and be inserted into the human oral cavity, and the pressure film 4041 presses the patient's tongue to prevent the tongue from falling back.

[0047] In summary, a device for assisting head fixation for CT imaging examinations is disclosed, comprising: a mattress 1, a head support 2, a head fixation mechanism, and a tongue-preventing mechanism. The head fixation mechanism, through a sponge layer 304, drives the synchronous movement of the two side crossbars 3 and the fixing plate 302 to achieve stable clamping of the patient's head. The fixing plate 302 is covered with a 4-6 cm thick sponge layer 303, which ensures stable fixation while reducing pressure on the head and improving patient comfort.

[0048] The fixing screw 402 controls the sliding and fixing of the slide bar 401 to ensure that the brace 404 is properly positioned in the patient's mouth. Subsequently, the adjusting screw 403 drives the brace 404 down and tightly fits the mouth. The pressure film 4041 inside the brace 404 presses the patient's tongue, effectively preventing the tongue from falling back.

[0049] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A head auxiliary fixation device for CT imaging examination, characterized in that: include: Mattress, head support, head fixing mechanism, tongue-fall prevention mechanism; The head end of the mattress is integrally provided with a head support, and the head end of the mattress is symmetrically provided with limiting grooves; The head fixing mechanism includes a cross bar, a fixing plate, a sponge layer, and a screw; the screw is rotatably connected to the head support, and cross bars are symmetrically arranged on both sides of the screw; one end of the cross bar is slidably connected to the limit groove, and the other end is provided with an L-shaped rod connected to the fixing plate; the sponge layer can be detachably installed on the fixing plate; The rear end of the headrest can be detachably mounted with a tongue-preventing mechanism; The tongue-preventing mechanism includes a fixed rod, a sliding rod, an adjusting screw, a brace, and a slider; the lower end of the fixed rod is fixedly connected to the head support, and the upper end of the fixed rod is provided with a sliding hole for mounting the sliding rod; a sleeve is integrally provided at the front end of the sliding rod; the upper end of the sleeve is threadedly connected to the adjusting screw, and the inside of the sleeve is slidingly connected to the slider; the upper end of the slider is rotatably connected to the adjusting screw, and a straight rod extends from the lower end to connect to the brace.

2. The head auxiliary fixation device for CT imaging examination according to claim 1, characterized in that: An arc-shaped supporting surface is provided on the upper end of the head support for supporting the head, and a silicone layer is attached to the outer wall of the head support to improve the comfort of supporting the head.

3. The head auxiliary fixation device for CT imaging examination according to claim 1, characterized in that: The screw is connected to the crossbar screws on both sides of the mattress, and the crossbars on both sides are controlled by the screw to move closer or farther away synchronously, driving the sponge layer to cooperate with the fixing plate to clamp and fix the patient's head.

4. The head auxiliary fixation device for CT imaging examination according to claim 1, characterized in that: The thickness of the sponge layer ranges from 4 to 6 cm, ensuring that the sponge layer can fit the human head comfortably.

5. The head auxiliary fixation device for CT imaging examination according to claim 1, characterized in that: A rack is provided at the upper end of the slide rod; a screw hole is provided on the fixed rod wall at the upper end of the slide hole to install a fixed screw; the lower end of the fixed screw is rotatably connected to the pressure plate; and a latching tooth is provided at the lower end of the pressure plate to movably connect the slide rod.

6. The head auxiliary fixation device for CT imaging examination according to claim 1, characterized in that: The braces are annular braces made of silicone; a pressure film is provided on the inner side of the braces to press the patient's tongue to prevent the tongue from falling back.

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