Auxiliary positioning device for whole-body CT (Computed Tomography) scanning

Abstract

The invention discloses an auxiliary positioning device for whole body CT scanning in the technical field of medical instruments, which comprises a bed body, a telescopic assembly is arranged on the bed body and is used for adjusting the area of the top wall of the bed body, a test plate is in sliding fit with the top wall of the bed body, a measuring scale is arranged on the telescopic assembly, and a headrest is further arranged on the top wall of the bed body. The headrest comprises a shell and a hand air pump, a plurality of supporting rods are in sliding fit with the side wall of the shell, a first air bag is fixedly connected to the inner side wall of the shell, a cavity is formed in the side wall of the first air bag, a plurality of particles are arranged in the cavity and are all made of non-metal materials, and the hand air pump is used for adjusting the size of the first air bag. The body height information acquisition device is used for quickly acquiring body height information of a patient before whole-body CT scanning, so that medical staff are assisted in quick positioning.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular is a device for auxiliary positioning of whole-body CT scanning. Background Art

[0002] Whole body CT scan refers to the use of CT (Computed Tomography) technology to scan and examine the patient's entire body tissues, organs and parts. This examination method is widely used in clinical medicine to make a preliminary judgment on most of the body's tissues and diseases.

[0003] At present, during the whole-body CT scan, different patients have different heights, and positioning scanning is a difficult point. There are cases where the scanning range is too large or insufficient and repeated scanning is required. The above situations will increase the patient's radiation dose, increase the scanning time, and reduce work efficiency. Therefore, how to quickly and accurately position during whole-body CT scanning has become an urgent problem to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide a device for assisting positioning in whole-body CT scanning, which is used to quickly obtain patient height information before whole-body CT scanning, thereby assisting medical staff in performing rapid positioning.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a device for auxiliary positioning of whole-body CT scanning comprises a bed, a telescopic assembly is provided on the bed, the telescopic assembly is used to adjust the area of ​​the top wall of the bed, a test plate is slidably fitted on the top wall of the bed, a measuring ruler is provided on the telescopic assembly, a headrest is also provided on the top wall of the bed board, the headrest comprises an outer shell and a hand-operated air pump, a plurality of support rods are slidably fitted on the side wall of the outer shell, a first airbag is fixedly connected to the inner wall of the outer shell, a chamber is opened on the side wall of the first airbag, and a plurality of particles are provided in the chamber, all of the particles are made of non-metallic material, the hand-operated air pump is used to adjust the volume of the first airbag, and the hand-operated air pump is also used to adjust the air pressure inside the chamber.

[0006] Furthermore, the telescopic assembly includes a placement groove opened on the side wall of the bed, an extension plate is slidably fitted in the placement groove, and the extension plate is slidably fitted with the test plate.

[0007] Furthermore, the top walls of the bed body and the extension board are both arc-shaped.

[0008] Furthermore, an adjustment frame is provided on the bed body, and the adjustment frame is used to adjust the angle between the outer bottom wall of the shell and the top wall of the bed body.

[0009] Furthermore, a second airbag is provided on the first airbag, the outer side wall of the second airbag is fixedly connected to the adjacent side wall, the second airbag is connected to the first airbag, and a check tube is provided at the connecting point, the check tube is made of elastic material, and the hand-operated air pump is also used to adjust the air pressure in the second airbag, and the second airbag is used to adjust the inclination angle of the top wall of the first airbag.

[0010] Furthermore, the side wall of the bed body with the placement groove is arranged inclined.

[0011] Furthermore, a plurality of support bars made of elastic material are provided in the chamber, and both ends of the support bars are fixedly connected to adjacent side walls of the chamber.

[0012] Furthermore, a plurality of balls are rollingly fitted on the outer shell, and the outer shell is slidingly fitted with the support rod through the balls.

[0013] Furthermore, one end of the support rod away from the bed body is fixedly connected with a protective cover, and the protective cover is made of elastic material.

[0014] Furthermore, the bed body is provided with symmetrically arranged through grooves, and the extension plate is provided with sliding grooves corresponding to the through grooves. The test plate is slidably matched with the bed body through the through grooves, and the test plate is slidably matched with the extension plate through the sliding grooves.

[0015] The technical principles and beneficial effects of the above scheme are as follows:

[0016] (1) This solution uses the design of a test board and a measuring ruler, and adjusts the position of the test ruler to make the distance between the test board and the headrest correspond, thereby obtaining the patient's height data. Compared with the existing technology, this solution enables medical staff to quickly and conveniently obtain the patient's height data. At the same time, it is also convenient for medical staff to determine whether the patient's body is tilted based on the correspondence between the test board and the patient's foot, which helps to improve the accuracy of the subsequent scanning position.

[0017] (2) Compared with the prior art, the present solution can reduce the footprint of the device when the device is not in use through the design of the telescopic component, thereby facilitating the storage and transportation of the device.

[0018] (3) The design of the headrest in this solution is such that the support rod can be close to the patient's skin under the action of the elasticity of the first airbag, and the design of the particles uses pressure to make the particles squeeze close to each other, thereby increasing the friction between the particles and making it difficult for external forces to occur under the action of external forces, that is, the hardness of the side wall of the first airbag is increased, thereby limiting the movement of the support rod. At the same time, due to the effect of the air pressure in the first airbag, when the support rod contacts the first airbag, the surrounding part of the support rod expands outward to wrap the end of the support rod. After the hardness of the side wall of the first airbag is increased, a small pit corresponding to the support rod can be formed to prevent the support rod from shaking and improve the stability of the device. The design of the support rod allows a certain distance between the patient and the outer wall of the shell. When facing a patient who is examined in a prone position, the feeling of stuffiness in the patient's head can be reduced. When facing some patients who need to be examined in a prone position, the patient can also breathe through the distance between the shell and the face.

[0019] Compared with traditional headrests, this device can adapt to patients with different head sizes, so that the device has better fixation ability and can meet the examination needs of both supine and prone positions. Compared with headrests made of fast-curing materials, this solution can be used by different patients, thereby effectively reducing the cost of single use. Moreover, since this device can be recycled, it can also effectively reduce the environmental pollution caused by fast-curing materials.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric diagram of an embodiment of the device for auxiliary positioning of whole-body CT scanning according to the present invention;

[0022] Figure 2 A top view of an embodiment of a device for assisting positioning in whole-body CT scanning according to the present invention;

[0023] Figure 3 AA cross-sectional view of an embodiment of the device for auxiliary positioning of whole-body CT scanning of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0025] The figure marks in the drawings of the specification include: bed body 1, through groove 11, placement groove 12, adjustment frame 2, one-way rack 21, fixing frame 22, top plate 23, headrest 3, shell 31, shell 32, protective cover 321, second airbag 33, check tube 331, first airbag 34, particles 35, ball 36, test plate 4, measuring ruler 5, extension plate 6, slide groove 61. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] The following is further described in detail through specific implementation methods:

[0030] Example

[0031] As attached Figure 1 -Attached Figure 4 As shown: a device for auxiliary positioning of whole-body CT scanning, comprising a bed 1, a telescopic component is provided on the bed 1, the telescopic component is used to adjust the area of ​​the top wall of the bed 1, the telescopic component comprises a placement groove 12 opened on the side wall of the bed, an extension plate 6 is slidably matched in the placement groove 12, a test plate 4 is slidably matched with the bed 1, the test plate 4 is slidably matched with the extension plate 6, a measuring ruler 5 is bonded and fixed to the top wall of the extension plate 6, a headrest 3 is also provided on the top wall of the bed board, the headrest 3 comprises a shell 31 and a hand pressure air pump, a plurality of support rods are slidably matched on the side wall of the shell 31, a first air bag 34 is bonded and fixed to the inner side wall of the shell 31, a chamber is opened on the side wall of the first air bag 34, and a plurality of particles 35 are arranged in the chamber, the particles 35 are all made of non-metallic material, the first air bag 34 and the chamber are both detachably connected and communicated with the hand pressure air pump through threads, and a plastic check valve is provided at the connection point, the hand pressure air pump is used to adjust the volume of the first air bag 34, and the hand pressure air pump is also used to adjust the air pressure inside the chamber.

[0032] The specific implementation process is as follows: when using the device, according to the needs of the examination, the extension plate 6 is pulled to drive the extension plate 6 to place the groove 12 in principle, thereby increasing the length of the device. Then the medical staff guides the patient to lie on the top wall of the bed body 1 in a posture suitable for examination. Then the medical staff connects the hand-operated air pump with the first air bag 34, and uses the hand-operated air pump to pump gas into the first air bag 34, so that the first air bag 34 drives the support rod to move out of the shell 31. At this time, the medical staff allows the patient's head to enter the headrest 3 and contact the support rod. Due to the first air bag 34, the patient's head is moved out of the shell 31. The side wall of the airbag 34 is elastic. The reaction force exerted by the patient's head on the support rod causes part of the support rod to continue to move toward the direction of the first airbag 34, which can deform the side wall of the first airbag 34, so that the support rod can fit the shape of the patient's head. In addition, since the force exerted by the support rod on the first airbag 34 is relatively concentrated, the area around the contact point between the two expands outward under the action of air pressure, wrapping the end of the support rod close to the first airbag 34. After the medical staff assists the patient to adjust the body and head to a suitable position, the medical staff presses the air pump by hand. Transfer to communicate with the chamber, the medical staff uses a hand-operated air pump to extract the gas in the chamber, so that the air pressure inside the chamber decreases. Under the action of the air pressure, the particles 35 squeeze each other. As the air pressure in the chamber decreases, the friction between the particles 35 gradually increases, and it is difficult for external force to drive the chamber to deform. At this time, the support rod pushes the first airbag 34 to deform, and the position of the support rod is fixed, thereby completing the fixation of the patient's head by the headrest 3. The first airbag 34 wraps the position of the end of the support rod to form a small pit, which can reduce the shaking of the support rod during use and improve the stability of the device. At the same time, the design of the support rod makes the patient's head not completely contact with the headrest 3. When facing a patient who needs to lie prone for examination, the patient can still breathe through the gap between the support rod and the outer wall of the shell 31. After completing the fixation of the patient's head, the medical staff removes the hand-operated air pump, and then the medical staff slides the test plate 4, moves the test plate 4 to a position close to the patient's footsteps, and reads the value of the corresponding position of the test plate 4 on the measuring ruler 5 to obtain the patient's height data, thereby determining the scanning position for subsequent scanning.

[0033] Based on the above scheme, in order to improve the comfort of the device, the top walls of the bed 1 and the extension board 6 are both curved. Therefore, when using the present device, the curved bed 1 and the extension board 6 have a larger contact area with the patient than the flat bed 1 and the extension board 6, thereby reducing the pressure exerted on the patient's body by the top wall of the bed 1 or the extension board 6, reducing the patient's discomfort when using the present device, and at the same time helping the patient to adjust the body to the center line of the bed 1 under the action of gravity, thereby improving the accuracy of the determined scanning position.

[0034] Based on the above scheme, in order to improve the use range of the device, an adjustment frame is also provided on the bed body 1, and the adjustment frame is used to adjust the angle between the outer bottom wall of the shell 31 and the top wall of the bed body 1. The adjustment frame includes a top plate 23, the top plate 23 is hinged to the bed body 1, the shell 31 is fixedly connected to the side wall of the top plate 23 away from the bed body 1, and the bottom wall of the top plate 23 is hinged with a fixing frame 22, and a one-way rack 21 is provided under the top plate 23, the one-way rack 21 is fixedly connected to the bed body 1 by bolts, and the one-way rack 21 is used to limit the position of the fixing frame 22, so as to adjust The angle between the top plate 23 and the bed body 1. Therefore, when using the present device, when the patient needs to maintain a supine position at a certain angle for examination, the medical staff can first rotate the top plate 23, and rotate the fixing frame 22 according to the angle that the patient needs to maintain, and engage the fixing frame 22 with the corresponding position of the one-way rack 21, so that the fixing frame 22, the top wall of the bed body 1 and the top wall form a triangle, completing the fixation of the angle of the top plate 23, thereby adjusting the angle between the headrest 3 and the top wall of the bed body 1 to meet the different examination needs of the patient.

[0035] Based on the above scheme, in order to further improve the scope of use of the device, a second airbag 33 is provided between the first airbag 34 and the inner wall of the shell 31, the outer wall of the second airbag 33 is bonded and fixed to the adjacent side wall, the height of the side wall of the second airbag 33 close to the extension plate 6 is less than the side wall away from the extension plate 6, the second airbag 33 is connected to the first airbag 34, and a check tube 331 is provided at the connection point, the check tube 331 is made of elastic material, the hand pressure air pump is also used to adjust the air pressure in the second airbag 33, and the second airbag 33 is used to adjust the inclination of the top wall of the first airbag 34. Bevel angle, therefore, during use, since the pitch of the one-way rack 21 is fixed, the angle at which the top plate 23 can be adjusted is also fixed, but the patient's body shape and condition are different, and the required angle does not necessarily fall within the angle that the adjustment frame can adjust. At this time, the medical staff uses the adjustment plate to adjust the angle between the headrest 3 and the bed 1 to a maximum angle lower than the required angle. For example, the patient's required angle is 20 degrees, and the adjustment plate is adjusted to 5 degrees, 15 degrees, 25 degrees and 35 degrees. At this time, the angle between the headrest 3 and the bed 1 is adjusted to 15 degrees. Then the medical staff selects a suitable second airbag 33 and uses a hand-operated air pump to pump air into the corresponding second air pump, so that the gas in the second air pump expands, and the second airbag 33 drives the first airbag 34 to deform, thereby tilting the contact surface between the first airbag 34 and the support rod, and then driving the patient's head to tilt, so as to fine-tune the angle between the patient's head and the bed 1, so that the device can adapt to the different tilt angle requirements of different patients. After adjusting to the appropriate angle, when there is no need to use the second airbag 33 to adjust the surface angle of the first airbag 34, due to the electrostatic adsorption force and the pressure of the gas in the chamber, the inner wall of the check tube 331 is close, the check tube 331 is closed, and the gas in the first airbag 34 is difficult to enter the second airbag 33, the second airbag 33 will not expand, and thus will not drive the first airbag 34 to deform.

[0036] Based on the above scheme, in order to reduce the discomfort of the patient during use, the side wall of the bed 1 with the placement groove 12 is arranged at an angle. Therefore, during use, the inclined side wall of the bed 1 can reduce the contact area between the edge of the bed 1 and the patient's body, thereby reducing the pressure applied by the edge of the bed 1 on the patient's body and reducing the patient's discomfort.

[0037] Based on the above scheme, in order to enhance the effect of the device, a number of support strips made of elastic material are provided in the chamber, and both ends of the support strips are bonded and fixed to the adjacent chamber side walls, and the support strips are used for the maximum distance between the two side walls of the chamber. Therefore, when using the device, when the medical staff reduces the chamber pressure and drives the chamber side walls to deform and tighten, the chamber side walls drive the support strips to bend. When the medical staff does not change the air pressure in the chamber, under the action of gravity, the particles 35 are easily moved downward and concentrated on the bottom wall of the chamber, so that the distance between the two side walls of the chamber at this part is increased, resulting in no particles 35 distributed above the chamber. After the medical staff reduces the chamber air pressure, no particles 35 are close to each other at this part, so that the hardness of this part is not enough to resist the movement of the support rod, thereby affecting the fixing effect of the headrest 3 on the patient's head. At this time, the design of the support strip can prevent the distance between the two side walls of the chamber from continuing to increase, thereby preventing some particles 35 from gathering under the chamber, thereby enhancing the effect of the device.

[0038] Based on the above scheme, in order to further reduce the patient's discomfort, a plurality of balls 36 are rolled on the shell 31, and the shell 31 slides with the support rod through the balls 36. Therefore, when using the present device, the design of the balls 36 can convert the sliding friction between the support rod and the shell 31 into rolling friction, thereby reducing the friction between the support rod and the shell 31, reducing the wear between the support rod and the shell 31, and improving the service life of the device. At the same time, the balls 36 also create a gap between the support rod and the shell 31, thereby balancing the pressure between the outside world and the inside of the shell 31, reducing the influence of pressure on the shape of the first airbag 34 and the movement of the support rod, improving the fit between the support rod and the patient's head, and allowing the patient to push the support rod to move more effortlessly, thereby improving the patient's usage experience.

[0039] Based on the above scheme, in order to further improve the patient's usage experience, a protective cover 321 is bonded and fixed to the end of the support rod away from the bed body 1, and the protective cover 321 is made of elastic material. Therefore, during use, the protective cover 321 can increase the contact area between the support rod and the patient, thereby reducing the pressure between the support rod and the patient, improving the patient's usage experience, thereby increasing the friction between the support rod and the patient, reducing the probability of displacement between the patient and the headrest 3 due to the patient's own movements, and improving the accuracy of subsequent examinations.

[0040] Based on the above scheme, in order to increase the stability of the movement of the test plate 4, symmetrically arranged through grooves 11 are provided on the bed body 1, and a slide groove 61 corresponding to the through groove 11 is provided on the extension plate 6. The test plate 4 slides with the bed body 1 through the through groove 11, and the test plate 4 slides with the extension plate 6 through the slide groove 61. Therefore, during the use of the device, the through groove 11 and the slide groove 61 can effectively improve the stability of the movement of the test plate 4, reduce the deviation or tilt of the test plate 4, and make the test plate 4 unable to be perpendicular to the midline of the patient's body, thereby causing measurement errors.

[0041] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for assisting positioning in whole-body CT scanning, characterized in that: The invention comprises a bed body, on which a telescopic assembly is provided, the telescopic assembly is used to adjust the area of ​​the top wall of the bed body, a test plate is slidably fitted on the top wall of the bed body, a measuring ruler is provided on the telescopic assembly, a headrest is also provided on the top wall of the bed board, the headrest comprises an outer shell and a hand-operated air pump, a plurality of support rods are slidably fitted on the side wall of the outer shell, a first airbag is fixedly connected to the inner wall of the outer shell, a chamber is opened on the side wall of the first airbag, a plurality of particles are provided in the chamber, all of the particles are made of non-metallic material, the hand-operated air pump is used to adjust the volume of the first airbag, and the hand-operated air pump is also used to adjust the air pressure inside the chamber.

2. The device for assisting positioning in whole-body CT scanning according to claim 1, characterized in that: The telescopic component comprises a placement groove arranged on the side wall of the bed, an extension plate is slidably matched in the placement groove, and the extension plate is slidably matched with the test plate.

3. The device for assisting positioning in whole-body CT scanning according to claim 2, characterized in that: The top walls of the bed body and the extension board are both arc-shaped.

4. The device for assisting positioning in whole-body CT scanning according to claim 3, characterized in that: An adjustment frame is also provided on the bed body, and the adjustment frame is used to adjust the angle between the outer bottom wall of the shell and the top wall of the bed body.

5. The device for assisting positioning in whole-body CT scanning according to claim 4, characterized in that: A second airbag is also provided on the first airbag, and the outer side wall of the second airbag is fixedly connected to the adjacent side wall. The second airbag is connected to the first airbag, and a check tube is provided at the connecting point. The check tube is made of elastic material. The hand-operated air pump is also used to adjust the air pressure in the second airbag. The second airbag is used to adjust the inclination angle of the top wall of the first airbag.

6. The device for assisting positioning in whole-body CT scanning according to claim 5, characterized in that: The side wall of the bed body with the placement groove is arranged inclined.

7. The device for assisting positioning in whole-body CT scanning according to claim 6, characterized in that: A plurality of support strips made of elastic material are arranged in the chamber, and both ends of the support strips are fixedly connected to adjacent chamber side walls.

8. The device for assisting positioning in whole-body CT scanning according to claim 7, characterized in that: A plurality of balls are rollingly matched on the outer shell, and the outer shell is slidingly matched with the support rod through the balls.

9. The device for assisting positioning in whole-body CT scanning according to claim 8, characterized in that: One end of the support rod away from the bed body is fixedly connected with a protective cover, and the protective cover is made of elastic material.

10. The device for assisting positioning in whole-body CT scanning according to claim 9, characterized in that: The bed body is provided with symmetrically arranged through grooves, and the extension plate is provided with slide grooves corresponding to the through grooves. The test plate is slidably matched with the bed body through the through grooves, and the test plate is slidably matched with the extension plate through the slide grooves.

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