CN217611119U - Suspension type movable oral CT device - Google Patents

Abstract

The utility model relates to the technical field of dental medical CT imaging, in particular to a suspended movable oral CT device. Its structure includes a fixed upper-layer double-lane sliding guide rail, and a lower-layer double-lane sliding guide rail is slidably embedded under the upper-layer double-lane sliding guide rail. In the upper double-lane sliding guide rail, a base driving mechanism is slidably embedded on the lower double-lane sliding guide rail, and the base driving mechanism is also connected to the upper end of the lower vertical shaft connecting arm through the retractable suspension arm, so The lower end of the vertical shaft connecting arm is screwed with a CT mechanism. The utility model relates to a suspended movable oral CT device, which adopts a suspended type without a cross-arm structure, so that the force is more reasonable, the occupied space is further reduced, and the ground position is not occupied.

Description

A suspended movable oral CT device

technical field

The utility model relates to the technical field of dental medical CT imaging, in particular to a suspended movable oral CT device.

Background technique

CT (Computed Tomography), that is, electronic computed tomography, uses X-rays to scan a layer of a certain thickness of the human body, and the detector receives the attenuated X-rays that pass through the layer and converts them into visible light, and converts optical signals into electrical signals. , and then converted into a digital signal by a digital-to-analog converter, and finally processed into an image by a computer.

In the field of medical radiography, oral X-ray films are the conventional means of examining oral diseases, which can better reflect general root inflammation, tooth fracture, and bone condition. However, it can only be projected from a fixed direction. Some lesions are not easy to be found due to the overlap of tissues. Due to the limitations of the field of view and operation, and the overlapping of images, it is often impossible to make a complete treatment plan and diagnosis basis. Oral CT (CBCT, Cone beam CT), because it can display diseased tissue and normal tissue structure from a three-dimensional perspective, avoids the defects of two-dimensional plane, such as image overlap of normal tissues and organs, image distortion caused by changes in projection angle , deformation, etc., and are widely used in clinical practice.

Oral CT examination images can be arbitrarily rotated in coronal, sagittal, axial, 3D and other multi-slice planes, and the high-definition boundary can highlight the details of anatomical structures of different densities, with rich tissue structure information, which can greatly improve the accuracy of stomatology. chemical medicine and clinical level. Therefore, it shoulders the needs of multiple clinical diseases, such as implantation, orthodontics, endodontics, periodontal, temporomandibular joint, maxillofacial surgery, etc. sex therapy.

Oral-specific CT equipment is used by more and more hospitals. It is smaller in size, and has lower equipment and use costs than whole-body CT, but it inherits the advantages of whole-body CT being clearer and more accurate. Due to the reduced imaging exposure range of oral CT, the radiation exposure of the human body is also significantly less than that of whole body CT.

At present, oral CT is mainly used to capture images of patients before and after treatment, which is used for disease diagnosis and treatment plan formulation. If a clear image of the lesion needs to be obtained during the treatment, the doctor needs to clean up the patient's lesion and the surgical environment around the patient before the patient can leave the dental operating chair and go to the radiology room to complete the scan. Due to repeated cleaning preparations and waiting for CT scans Time has resulted in a great waste of doctor-patient resources. Taking common root canal treatment as an example, each root canal treatment requires more than one CT scan to confirm the root canal treatment status. The entire treatment process is calculated as 1 to 1.5 hours, of which the CT scan time accounts for 25%~ 30%. Due to the fixation of the oral CT equipment, it cannot be moved flexibly, which cannot meet the shooting needs of patients who do not leave the operating position during the operation. In addition, the fixed oral CT cannot meet the mobile switching use between multiple dental treatment workstations in the operating room. The above limitations result in low utilization of equipment, and cannot meet the needs of patients for dental imaging during surgery, and the application scenarios are limited.

SUMMARY OF THE INVENTION

In order to solve the problems of the prior art, the present invention provides a suspended movable oral CT device, which adopts a suspended type without a cross-arm structure to make the force more reasonable, the occupied space is further reduced, and the ground location. At the same time, the equipment can be moved flexibly, can meet the needs of temporary use in a timely manner, provide doctors with timely and sufficient diagnostic basis to effectively grasp the timing of treatment, and reduce the waste of time and resources caused by repeated surgical preparations for patients.

The technical scheme adopted by the present utility model is as follows:

A suspended movable oral CT device comprises a fixed upper-layer double-channel sliding guide rail, a lower-layer double-channel sliding guide rail is slidably embedded under the upper-layer double-channel sliding guide rail, and the lower-layer double-channel sliding guide rail passes through the lower-layer double-channel sliding guide rail. The first roller driven by the drive motor is slidably embedded in the upper double-lane sliding guide rail, and a base driving mechanism is slidably embedded on the lower double-lane sliding guide rail. The upper end of the lower vertical shaft connecting arm is connected, and the lower end of the vertical shaft connecting arm is screwed with a CT mechanism.

Preferably, the base drive mechanism includes a CT mechanism sliding drive motor that drives the CT mechanism to move on the lower double-track sliding guide rails, and a CT mechanism lift drive motor and a rotating shaft that drive the CT mechanism to rise and fall. The CT mechanism slide drive motor Drive the second roller, so that the CT mechanism moves on the lower double-track sliding guide rail, the CT mechanism lift motor drives the rotating shaft, and the lower end of the connecting rope on the rotating shaft is connected to the retractable suspension arm.

Preferably, the CT mechanism includes a casing connected to the lower end of the vertical axis connecting arm, a ray source system is arranged inside one side of the casing, and a detector system is arranged inside the casing opposite to the ray source system, and the casing A head fixing device is arranged directly below the body.

Preferably, first pulling handles are provided on the housings on both sides of the radiation source system.

Preferably, the head fixing device is provided with a second pulling handle.

The beneficial effects brought by the technical scheme provided by the utility model are:

(1) There is no need to place the inverted L-shaped bracket on the floor, which can save the floor space in the operating room. In addition, it is more reasonable for the equipment to be stressed without a cross-arm structure, and the occupied space is further reduced, and the load is more reasonable under the boom, which ensures the stability of the device during use.

(2) On-site filming can be provided for patients on the operating chair without moving away from the chair, the patient experience is friendly, intraoperative time can be saved, and efficiency can be further improved. At the same time, it can provide doctors with image information inside the patient's mouth as a diagnostic basis in time, improve the accuracy and success rate of surgery, and reduce the risk of surgery.

(3) It can simultaneously provide filming requirements for multiple dental work stations within the coverage area, which greatly saves the purchase cost of the equipment, improves the utilization efficiency of the equipment, and reduces the waste of resources.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic structural diagram of a suspended movable oral CT device of the present invention;

2 is a schematic diagram of a CT detection mechanism of a suspended movable oral CT device of the present invention;

3 is a schematic diagram of a base driving mechanism of a suspended movable oral CT device according to the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

Example 1

As shown in FIG. 1 , it is a specific implementation of a suspended movable oral CT device according to the present invention. The system mainly consists of an upper-layer double-lane sliding guide rail 101 , a lower-layer double-lane sliding guide rail 102 , and a mechanical limiter. 103, lower double-track sliding guide rail driving motor 104, base driving mechanism 201, CT mechanism sliding driving motor 202, CT mechanism lifting driving motor 203, rotating shaft 204, retractable suspension arm 205, vertical shaft connecting arm 206, radiation source The system 301 , the detector system 401 , the operation interface of the head fixing device 501 and the pulling handle 601 are composed of several main parts.

The upper-layer double-lane sliding guide rail 101 is fixedly installed on the roof of the operating room, and the lower-layer double-lane sliding guide rail 102 is installed on the upper-layer double-lane sliding guide rail 101 . The upper-layer double-lane sliding guide rail 101 is fixed, and the lower-layer double-lane sliding guide rail 102 can slide on the upper-layer double-lane sliding guide rail 101 and can hover at a designated position. The rollers are driven by the driving motor 104 of the lower double-lane sliding guide rail to realize the movement and hovering of the lower double-lane sliding guide rail on the upper sliding guide rail, and the driving mode is not limited to belts, gears, etc. The ends of the upper-layer double-lane sliding guide rail 101 and the lower-layer double-lane sliding guide rail 102 are provided with mechanical limiting members 103 to prevent the device from rushing out of the slideway.

The base drive mechanism 201 slides on the lower double-lane sliding guide rail 102 to provide power for the movement and lifting of the entire CT mechanism. The base driving mechanism 201 is connected with the lower double-track sliding guide rail 102 through rollers, and slides within a certain length range of the lower double-track sliding guide rail 102 . The base driving mechanism 201 is equipped with a CT mechanism sliding driving motor 202 , a CT mechanism lifting driving motor 203 , and a rotating shaft 204 . By sliding the driving motor 202 of the CT mechanism, the rollers are driven to realize the movement and hovering of the CT mechanism on the lower sliding guide rail. At the same time, the rotating shaft 204 can be driven by the lifting and driving motor 203 of the CT mechanism, and the rotating shaft 204 is provided with a steel wire rope to suspend the CT mechanism, so as to realize the lifting and lowering of the CT mechanism. According to the needs of shooting, the base drive mechanism 201 can hover to a designated position under the lower double-track sliding guide 102 through an electric servo drive device, and can also be manually dragged to a designated position.

The retractable suspension arm 205 is used to suspend and connect the base driving mechanism 201 and the imaging system composed of the radiation source system 301 and the detector system 401 . The retractable suspension arm 205 has a length telescopic function within a certain range, and can adjust the imaging system to hover to a certain height according to the patient's posture at the operating position to meet the requirements of intraoperative photography.

The vertical axis connecting arm 206 is used to connect the retractable suspension arm 205 and the imaging system, and is used as the suspension force position of the imaging system to ensure reasonable force of the imaging system and maintain the stability of the equipment during the shooting process.

The upper and lower double sliding guide rails realize the lateral and vertical movement of the main equipment. The length of the sliding guide rails can be reasonably arranged according to the size of the operating room to ensure that the device covers all operating positions in the operating room. Through the cooperation between the lower double-lane sliding guide rail driving motor 104, the CT mechanism sliding driving motor 202, the CT mechanism lifting driving motor 203, and the rotating shaft 204, the positions between the rails, between the bases and the rails, and the telescopic boom relative to the base are realized. The settings between the two, and then the oral CT can be locked and hovered at any position in the whole house to ensure the stability of the CT scanning process.

The imaging system composed of the radiation source system 301 and the detector system 401 can rotate 360° around the vertical center line of the vertical axis connecting arm 203 to realize the functions of panoramic imaging and CT scanning. The detector system 401 is equipped with a linear array detector and a plane detector at the same time. The two detectors are arranged back-to-back, and can be matched according to the needs of imaging by rotating and switching.

The head fixing device 501 adopts the hanging type as a whole, and is arranged in the middle position of the radiation source system 301 and the detector system 401 , and there is no spatial interference with the radiation source system 301 and the detector system 401 . The head immobilization device 501 can be made of lightweight materials including but not limited to carbon fiber, to avoid artifacts caused by the introduction of external materials as much as possible. The head immobilizer 501 can rotate 360° and can be adjusted according to the patient's posture. The head fixing device 501 has no less than four fixing points, including but not limited to both sides of the head, forehead, chin, etc., for fixing the patient's head and preventing shaking. At the same time, the position of the positioning points on both sides of the head can be adjusted for different head sizes to ensure the stability of the patient's head. In addition, the head immobilization device 501 is also provided with a two-hand handrail, and the patient can hold the handrail with both hands to keep the body stable.

The operation interface and the pulling handle 601 can be used to control the position of the CT device and manually pull the CT device to a designated position. The operation interface can use, but not limited to, a display touch screen or a button type and a combination of the two to control the position status of the device such as movement and locking. Pulling the handle with an automatic unlocking button can be used to unlock and drag the CT machine.

Before shooting, according to the operating position, the equipment is electrically driven or manually dragged to the designated position along the upper and lower double sliding guide rails indoors. The equipment has the function of automatic obstacle avoidance and collision avoidance during the movement. After the device reaches the designated position, lock the base position, hover over the patient's operating chair, and the patient sits upright on the operating chair. Through the lifting and lowering adjustment of the retractable suspension arm 205 and the adjustment of the head fixing device 501, the posture of the patient in the operating chair is adapted to perform dental imaging shooting.

In order to realize that multiple working positions in the dental operating room share a set of suspended movable oral CT and shield the unnecessary radiation dose of doctors and patients in non-photographing working positions in the operating room, the operating room is equipped with an independent movable sealed lead screen. Since the radiation dose of oral CT is much lower than that of whole body CT, the use of lead screens or other movable shielding facilities can fully meet the protection level required by relevant regulations. During the shooting process, the sealed lead screen can surround the other surfaces of the shooting station except the ground, to prevent the radiation of the shooting position from leaking, and to ensure the radiation safety of other personnel in the same dental room. Keep the operation of each work station in the dental room without affecting each other and improve work efficiency.

When the device is not in use, the base drive mechanism 201 locks the device in the initial position on the roof of the operating room. The retractable suspension arm is raised to the highest position to retract the equipment to a safe space, preventing spatial interference with other objects in the room, and ensuring the safety of personnel and equipment in the operating room.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (5)

1. The utility model provides a mobilizable oral cavity CT device of suspension type, is including fixed upper strata double-track sliding guide, a serial communication port, upper strata double-track sliding guide below slip to have lower floor's double-track sliding guide, lower floor's double-track sliding guide first gyro wheel slip through lower floor's double-track sliding guide driving motor drive inlay in the upper strata double-track sliding guide, lower floor's double-track sliding guide on slip to have inlayed base actuating mechanism, base actuating mechanism still suspend in the midair the upper end of arm connection below vertical axis linking arm in midair through scalable arm, the lower extreme of vertical axis linking arm connect CT mechanism soon.

2. A suspended movable oral CT device as claimed in claim 1, wherein the base driving mechanism comprises a CT mechanism sliding driving motor for driving the CT mechanism to move on the lower dual-way sliding rail, a CT mechanism lifting driving motor for driving the CT mechanism to lift, and a rotating shaft, the CT mechanism sliding driving motor drives the second roller to move the CT mechanism on the lower dual-way sliding rail, the CT mechanism lifting driving motor drives the rotating shaft, and the lower end of the connecting rope on the rotating shaft is connected to the retractable suspension arm.

3. A suspended movable oral cavity CT apparatus as claimed in claim 1, wherein the CT mechanism comprises a housing connected to the lower end of the vertical shaft connecting arm, a radiation source system is disposed inside one side of the housing, a detector system is disposed inside the housing opposite to the radiation source system, and a head fixing device is disposed under the housing.

4. A suspended movable oral cavity CT apparatus as claimed in claim 3, wherein the radiation source system has a first pulling handle on the housing at both sides.

5. A suspended mobile oral CT device as claimed in claim 3, wherein the head-mounted device is provided with a second wheel handle.

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