CT (Computed Tomography) positioning bracket

Abstract

The utility model discloses a CT (Computed Tomography) positioning bracket, which belongs to the technical field of medical CT, and solves the problems that a cranium frame of the existing device is positioned behind a back brain frame, and the cranium of a patient is positioned at different positions in the cranium frame, so that a positioning metal wire in the cranium frame cannot position focuses of patients with different head sizes, and limitation exists. A bottom plate is fixedly mounted on the bottom face of the semicircular support, a positioning metal wire distributed along the Z axis is embedded in the bottom plate, mounting holes are symmetrically formed in the side face of the semicircular support, and an adjusting assembly is arranged on the side face of the semicircular support. The CT scanning result image can display the head of a patient, the Y-axis X and positioning metal line in the sliding plate and the Z-axis metal positioning line in the bottom plate together, then the position of a head focus can be accurately judged, position adjustment can be conducted according to the head sizes of different patients, and the focus positioning accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical CT, in particular to a CT positioning bracket. Background Art

[0002] CT examination uses X-rays to scan the patient's body structure. The computer converts the scan information into image information output. CT examination can be applied to any part of the body.

[0003] After searching, the specification of patent application number CN201821627037.7 discloses a head CT auxiliary positioning bracket, including: a skull frame, a back head frame, a bracket, an XY grid, a Z grid, and a positioning metal wire; the head CT auxiliary positioning bracket, the main body includes a skull frame, a back head frame, and a bracket made of plastic, the skull frame is a hemispherical hollow bracket, the front view surface of the skull frame is completely penetrated by square holes with a spacing of one centimeter and a planar array, and an XY grid is formed between each square hole, and when the XY grid is projected to the same plane, it is a grid structure with a spacing of one centimeter and perpendicular to each other, the semicircular section on the skull frame is connected to the back head frame with an arc of 180 degrees, and the back head frame is provided with square holes perpendicular to the horizontal plane and with a spacing of one centimeter and distributed in a planar array, and a Z grid is formed between each square hole; a bracket is fixedly connected to the bottom of the back head frame, and the bottom of the bracket is a horizontal base;

[0004] Although the head CT-assisted positioning bracket can accurately locate the lesion in three dimensions by displaying the relative positions of the X-axis positioning line, Y-axis positioning line, and Z-axis positioning line on the XY grid and the Z grid, the skull frame of the head CT-assisted positioning bracket is located behind the occipital frame, and different patients have different head sizes and their skulls are located in different positions within the skull frame. As a result, the positioning metal wires within the skull frame cannot locate lesions in patients with different head sizes, which has limitations.

[0005] Therefore, we proposed a CT positioning bracket. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a CT positioning bracket, which solves the problem that the skull frame of the prior art device is located behind the back of the head frame, different patients have different head sizes, and the positions of the patient's skull in the skull frame are different, which results in the positioning metal wire in the skull frame being unable to locate the lesions of patients with different head sizes, thus having limitations.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a CT positioning bracket, comprising a semicircular bracket, the bottom surface of which is fixedly mounted with a bottom plate;

[0008] The interior of the bottom plate is inlaid with positioning metal wires distributed along the Z axis, and the side surfaces of the semicircular bracket are symmetrically provided with mounting holes and adjustment components;

[0009] The adjustment assembly includes a telescopic rod fixedly mounted on the side wall of the mounting hole, a T-shaped plate fixedly mounted on one end of the telescopic rod located outside the mounting hole, a connecting rod fixedly mounted on the back of the T-shaped plate, a push plate fixedly mounted on the end of the connecting rod away from the T-shaped plate, a connecting plate fixedly mounted on the side of the T-shaped plate, a slide plate fixedly mounted on the side of the connecting plate, the slide plate is vertically arranged and has positioning metal wires distributed along the Y-axis and the X-axis inlaid therein.

[0010] Preferably, a support rod is fixedly installed at the bottom end of the T-shaped plate, and the support rod is slidably mounted inside the limiting hole, wherein the bottom of the T-shaped plate can be supported by the support rod sliding inside the limiting hole, thereby preventing the top of the T-shaped plate from being bent due to a large force.

[0011] Preferably, a slide groove is provided on one side of the top surface of the base plate, and the bottom side of the skateboard is slidably mounted inside the slide groove, wherein the slide groove facilitates the sliding of the skateboard and can support the skateboard at the same time, thereby reducing the influence of the skateboard's gravity on the T-shaped plate.

[0012] Preferably, a scale groove is provided on the top surface of the semicircular bracket, wherein the scale groove is convenient for observing the moving distance of the push plate so as to accurately adjust the position of the push plate.

[0013] Preferably, a baffle is fixedly installed on the side of the top surface of the base plate away from the adjustment component, and the side surface of the baffle is in contact with the outer surface of the semicircular bracket, wherein the baffle can support the side surface of the semicircular bracket, thereby preventing the semicircular bracket from bending and deforming due to the greater pressure from the patient's head during use.

[0014] Preferably, the semicircular bracket, base plate and baffle are all made of plastic material, wherein the use of plastic material can avoid the influence of the bracket on the CT scanning result.

[0015] The utility model provides a CT positioning bracket, which has the following beneficial effects:

[0016] 1. The CT positioning bracket pushes the T-shaped plate, which in turn drives the telescopic rod to extend and retract until the push plate contacts the top of the patient's head, and the slide plate also slides along the slide groove to one side of the patient's head. The CT scan result image will display the patient's head together with the Y-axis X and positioning metal wires inside the slide plate and the Z-axis metal positioning wires inside the bottom plate, and then the position of the head lesion can be accurately determined. Since the slide plate can be moved, the position can be adjusted according to the head size of different patients, so that the middle part of the slide plate corresponds to the position of the patient's head, which improves the accuracy of lesion positioning and solves the problem that the skull frame of the existing device is located behind the back of the head frame, different patients have different head sizes, and the position of the patient's skull in the skull frame is different, which leads to the positioning metal wire in the skull frame being unable to locate the lesions of patients with different head sizes, which has limitations.

[0017] 2. The CT positioning bracket has a graduated groove for observing the moving distance of the push plate, so as to accurately adjust the position of the push plate. The side of the semicircular bracket can be supported by the baffle plate, thereby preventing the semicircular bracket from being bent and deformed due to the greater pressure from the patient's head during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the semicircular bracket structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the side structure of the semicircular bracket of the utility model.

[0022] In the figure: 1. semicircular bracket; 11. mounting hole; 12. limit hole; 13. scale groove; 2. bottom plate; 21. slide groove; 3. baffle; 4. adjustment component; 41. telescopic rod; 42. T-shaped plate; 43. support rod; 44. connecting plate; 45. slide plate; 46. connecting rod; 47. push plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1-4 As shown: it includes a semicircular bracket 1, a bottom plate 2 is fixedly installed on the bottom surface of the semicircular bracket 1, and the interior of the bottom plate 2 is inlaid with positioning metal wires distributed along the Z axis, the side of the semicircular bracket 1 is symmetrically provided with mounting holes 11 and an adjustment component 4 is provided, the adjustment component 4 includes a telescopic rod 41 fixedly installed on the side wall of the mounting hole 11, the end of the telescopic rod 41 located outside the mounting hole 11 is fixedly installed with a T-shaped plate 42, the back of the T-shaped plate 42 is fixedly installed with a connecting rod 46, the end of the connecting rod 46 away from the T-shaped plate 42 is fixedly installed with a push plate 47, the side of the T-shaped plate 42 is fixedly installed with a connecting plate 44, the side of the connecting plate 44 is fixedly installed with a slide plate 45, the slide plate 45 is vertically arranged and the interior thereof is inlaid with positioning metal wires distributed along the Y axis and the X axis, the T-shaped plate A support rod 43 is fixedly installed at the bottom end of 42, and the support rod 43 is slidably mounted inside the limiting hole 12. A slide groove 21 is provided on one side of the top surface of the bottom plate 2, and the bottom side of the slide plate 45 is slidably mounted inside the slide groove 21. By pushing the T-shaped plate 42, the telescopic rod 41 is driven to be telescoped until the push plate 47 contacts the top of the patient's head. Then, the slide plate 45 also slides along the slide groove 21 to one side of the patient's head. The CT scan result image will display the patient's head together with the Y-axis X and positioning metal wire inside the slide plate 45 and the Z-axis metal positioning wire inside the bottom plate 2, so that the position of the head lesion can be accurately determined. Since the slide plate 45 can be moved, the position can be adjusted according to the head size of different patients, so that the middle part of the slide plate 45 corresponds to the position of the patient's head, thereby improving the accuracy of lesion positioning.

[0026] Embodiment 2:

[0027] like Figure 1-4 As shown: a scale groove 13 is provided on the top surface of the semicircular bracket 1, a baffle 3 is fixedly installed on the side of the top surface of the base plate 2 away from the adjustment component 4, and the side surface of the baffle 3 is in contact with the outer surface of the semicircular bracket 1. The semicircular bracket 1, the base plate 2 and the baffle 3 are all made of plastic. The scale groove 13 is convenient for observing the moving distance of the push plate 47 so as to accurately adjust the position of the push plate 47. The baffle 3 can support the side of the semicircular bracket 1, thereby preventing the semicircular bracket 1 from being bent and deformed due to a large pressure from the patient's head during use.

[0028] Working principle and use process of the utility model: When using the CT positioning bracket, the patient rests his head on the inner side of the semicircular bracket 1 and makes his shoulders lean against the side of the baffle 3, then pushes the T-shaped plate 42 to control the telescopic rod 41 to extend and retract until the push plate 47 contacts the top of the patient's head, then the slide plate 45 also slides to one side of the patient's head along the slide groove 21, so that the patient's head is opposite to the middle part of the slide plate 45, and then a CT scan is performed. The scan result image will display the patient's head together with the Y-axis X and positioning metal wire inside the slide plate 45 and the Z-axis metal positioning wire inside the bottom plate 2, and then the position of the head lesion can be accurately determined, and the slide plate 45 can be moved and can be adjusted according to the head size of different patients, so that the middle part of the slide plate 45 corresponds to the position of the patient's head, thereby improving the accuracy of lesion positioning.

[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A CT positioning bracket, comprising a semicircular bracket (1), wherein a bottom plate (2) is fixedly mounted on the bottom surface of the semicircular bracket (1); Features: The interior of the base plate (2) is inlaid with positioning metal wires distributed along the Z axis, and the side surfaces of the semicircular bracket (1) are symmetrically provided with mounting holes (11) and are provided with an adjustment component (4); The adjustment assembly (4) comprises a telescopic rod (41) fixedly mounted on the side wall of the mounting hole (11); a T-shaped plate (42) is fixedly mounted on one end of the telescopic rod (41) located outside the mounting hole (11); a connecting rod (46) is fixedly mounted on the back of the T-shaped plate (42); a push plate (47) is fixedly mounted on one end of the connecting rod (46) away from the T-shaped plate (42); a connecting plate (44) is fixedly mounted on the side of the T-shaped plate (42); a sliding plate (45) is fixedly mounted on the side of the connecting plate (44); the sliding plate (45) is vertically arranged and has positioning metal wires distributed along the Y axis and the X axis embedded therein.

2. A CT positioning bracket according to claim 1, characterized in that: A support rod (43) is fixedly mounted on the bottom end of the T-shaped plate (42), and the support rod (43) is slidably mounted inside the limiting hole (12).

3. The CT positioning bracket according to claim 1, characterized in that: A slide groove (21) is provided on one side of the top surface of the bottom plate (2), and the bottom side of the slide plate (45) is slidably mounted inside the slide groove (21).

4. The CT positioning bracket according to claim 1, characterized in that: The top surface of the semicircular bracket (1) is provided with a scale groove (13).

5. The CT positioning bracket according to claim 1, characterized in that: A baffle (3) is fixedly mounted on the side of the top surface of the bottom plate (2) away from the adjustment assembly (4), and the side surface of the baffle (3) is in contact with the outer surface of the semicircular bracket (1).

6. The CT positioning bracket according to claim 1, characterized in that: The semicircular bracket (1), the bottom plate (2) and the baffle plate (3) are all made of plastic.

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