Auxiliary fixing device for PET-CT (positron emission tomography-computed tomography) examination

Abstract

The utility model discloses an auxiliary fixing device for PET-CT examination, which comprises a mounting base, a fixing block, a soft bag and an adjusting mechanism, the lower surface of the mounting base is fixedly connected with a fixing plate, the surface of the fixing plate is provided with a locking rod in threaded connection, the inner end of the locking rod is provided with a clamping plate in movable connection, and the clamping plate is fixedly connected with the fixing block. A fixing block in sliding connection is arranged on the upper surface of the mounting base, a soft bag is connected to the surface of the fixing block in a sleeving mode, an adjusting mechanism is arranged at the joint of the fixing block and the mounting base and comprises a positioning strip, a sliding seat, a shifting rod and a linkage rod, and the sliding seat is located in the mounting base and fixedly connected with the fixing block; and a buckling connection positioning strip is arranged on the side wall of the sliding seat. The auxiliary fixing device is composed of the mounting base, the fixing block, the soft bag and the adjusting mechanism, the neck of a patient can be conveniently clamped and fixed after the patient lies on a PET-CT table top, and therefore the head of the patient can be conveniently fixed, and the situation that the detection accuracy is affected due to twisting of the patient in the detection process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an auxiliary fixing device for PET-CT examination. Background Art

[0002] PET-CT examination provides detailed molecular information such as the function and metabolism of the lesion, while CT provides precise anatomical positioning of the lesion. A single imaging can obtain tomographic images of the whole body from all directions. It is sensitive, accurate, specific and has precise positioning. It is an imaging device that reflects the genetic, molecular, metabolic and functional status of the lesion. It can clearly understand the overall condition of the body and achieve the purpose of early detection of lesions and diagnosis of diseases.

[0003] At present, the PET-CT examination process takes a long time, which causes the patient to twist during the examination, which easily affects the accuracy of the patient's examination. Therefore, an auxiliary fixation device for PET-CT examination is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an auxiliary fixation device for PET-CT examination, which solves the problem that patients are prone to twisting during long-term PET-CT examinations, thereby affecting the accuracy of the examination. The auxiliary fixation device is composed of a mounting base, a fixing block, a soft bag, and an adjustment mechanism, which facilitates clamping and fixing the patient's neck after the patient lies flat on the PET-CT table, thereby facilitating fixing the patient's head and preventing the patient from twisting during the examination and affecting the detection accuracy.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an auxiliary fixing device for PET-CT examination, comprising a mounting base, a fixing block, a soft bag and an adjusting mechanism, wherein a fixing plate is fixedly connected to the lower surface of the mounting base, a locking rod is threadedly connected to the surface of the fixing plate, an inner end of the locking rod is provided with a movably connected clamping plate, a slidably connected fixing block is provided on the upper surface of the mounting base, a soft bag is sleeved on the surface of the fixing block, an adjusting mechanism is provided at the connection between the fixing block and the mounting base, the adjusting mechanism comprises a positioning strip, a sliding seat, a toggle rod and a connecting rod, the sliding seat is located in the mounting base and fixedly connected to the fixing block, a side wall of the sliding seat is provided with a snap-fitting positioning strip, the toggle rod and the connecting rod are rotatably connected to the mounting base, and a toggle rod and a connecting rod are respectively provided at both ends of the positioning strip.

[0008] As a further preferred embodiment of the present invention, the inner end and the outer end of the toggle rod form an angle of 120°, the inner end of the toggle rod is parallel to the connecting rod, and the positioning bar is rotatably connected to the toggle rod and the connecting rod respectively.

[0009] As a further preferred embodiment of the present invention, a rotating shaft is fixedly connected to the middle portion of the toggle lever, the rotating shaft is rotatably connected to the mounting base and a torsion spring is provided at the connection.

[0010] As a further preferred embodiment of the present invention, a guide groove is provided on the surface of the mounting base, and the fixing block is slidably connected to the mounting base along the guide groove.

[0011] As a further preferred embodiment of the present invention, the side wall of the positioning strip is provided with evenly distributed positioning teeth, the side wall of the sliding seat is provided with positioning grooves, and the positioning grooves and the positioning teeth are engaged with each other.

[0012] As a further preferred embodiment of the present invention, a handle is fixedly connected to the outer end of the locking rod, and a ball head is provided at the connection between the locking rod and the clamping plate.

[0013] (III) Beneficial effects

[0014] The utility model provides an auxiliary fixation device for PET-CT examination, which has the following beneficial effects:

[0015] The utility model utilizes a mounting base, a fixing block, a soft bag and an adjusting mechanism to form an auxiliary fixing device, which is convenient for clamping and fixing the patient's neck after the patient lies flat on the PET-CT tabletop, thereby facilitating fixing the patient's head and preventing the patient from twisting during the examination and affecting the detection accuracy. By arranging an adjustable fixing block on the surface of the mounting base and cooperating with the internal adjusting mechanism, the position of the fixing block can be conveniently adjusted and solidified, thereby improving the versatility of the auxiliary fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the auxiliary fixation device for PET-CT examination of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model from a top view;

[0018] Figure 3 It is a schematic structural diagram of a side cross-section of the splint of the utility model.

[0019] In the figure: mounting base 1, fixing block 2, soft bag 3, adjustment mechanism 4, fixing plate 5, locking rod 6, clamping plate 7, positioning strip 8, sliding seat 9, toggle rod 10, connecting rod 11, rotating shaft 12, torsion spring 13, guide groove 14, positioning tooth 15, positioning groove 16, handle 17, ball head 18. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 The embodiment of the utility model provides a technical solution: an auxiliary fixing device for PET-CT examination, comprising a mounting base 1, a fixing block 2, a soft bag 3 and an adjusting mechanism 4, wherein a fixing plate 5 is fixedly connected to the lower surface of the mounting base 1, a locking rod 6 with a threaded connection is provided on the surface of the fixing plate 5, and a movably connected clamping plate 7 is provided at the inner end of the locking rod 6, a slidingly connected fixing block 2 is provided on the upper surface of the mounting base 1, a soft bag 3 is sleeved on the surface of the fixing block 2, an adjusting mechanism 4 is provided at the connection between the fixing block 2 and the mounting base 1, the adjusting mechanism 4 comprises a positioning strip 8, a sliding seat 9, a toggle rod 10 and a connecting rod 11, the sliding seat 9 is located in the mounting base 1 and is fixedly connected to the fixing block 2, a side wall of the sliding seat 9 is provided with a snap-fitting positioning strip 8, the toggle rod 10 and the connecting rod 11 are rotatably connected to the mounting base 1, and a toggle rod 10 and a connecting rod 11 are provided at both ends of the positioning strip 8, respectively.

[0022] As a further improvement, the inner end of the toggle rod 10 forms an angle of 120° with the outer end, the inner end of the toggle rod 10 is distributed parallel to the connecting rod 11, and the positioning bar 8 is rotatably connected to the toggle rod 10 and the connecting rod 11 respectively. By setting a 120° angle on the toggle rod 10, it is convenient for the inner end to swing when the outer end of the toggle rod 10 is pressed, and cooperates with the parallelly distributed connecting rod 11 to improve the stability of the movement of the positioning bar 8.

[0023] As a further improvement, a rotating shaft 12 is fixedly connected to the middle part of the toggle rod 10, and the rotating shaft 12 is rotatably connected to the mounting base 1 and a torsion spring 13 is provided at the connection. By fixing the rotating shaft 12 at the middle part of the toggle rod 10, it is convenient to drive the inner end to move when the outer end of the toggle rod 10 is pressed, so as to push the positioning bar 8 to translate and to fix and adjust the sliding seat 9.

[0024] As a further improvement, a guide groove 14 is provided on the surface of the mounting base 1, and the fixed block 2 is slidably connected to the mounting base 1 along the guide groove 14. By providing the guide groove 14 on the surface of the mounting base 1, it is convenient to limit and guide the fixed block 2, thereby improving the stability of the fixed block 2 and the mounting base 1.

[0025] As a further improvement, the side wall of the positioning strip 8 is provided with evenly distributed positioning teeth 15, and the side wall of the sliding seat 9 is provided with a positioning groove 16, and the positioning groove 16 and the positioning teeth 15 are engaged with each other. By providing the positioning teeth 15 on the side wall of the positioning strip 8 and cooperating with the positioning groove 16 on the side wall of the sliding seat 9, the sliding seat 9 can be conveniently fixed.

[0026] Specifically, the outer end of the locking rod 6 is fixedly connected to a handle 17, and a ball head 18 is provided at the connection between the locking rod 6 and the splint 7. By fixing the handle 17 at the outer end of the locking rod 6, it is convenient for medical staff to manually rotate the locking rod 6. By providing a ball head 18 at the connection between the locking rod 6 and the splint 7, it is convenient to rotate the locking rod 6, and it is convenient to push the splint 7 to be clamped and fixed to the PET-CT table.

[0027] When the utility model is in use, the mounting base 1 is buckled and connected to the surface of the PET-CT table, the locking rod 6 is manually rotated, and the pushing clamp 7 of the locking rod 6 is clamped and fixed to the side wall of the PET-CT table, and then the position of the fixing block 2 is manually adjusted according to the patient's body shape, and the positioning bar 8 is driven to separate from the sliding seat 9 by pressing the toggle rod 10, and the fixing block 2 is manually slid along the guide groove 14 on the surface of the mounting seat, and the toggle rod 10 is released after the adjustment is completed, and the toggle rod 10 is driven to reset under the action of the torsion spring 13, so that the positioning bar 8 and the side wall of the sliding seat 9 are engaged with each other, which is used to fix the sliding seat 9, thereby locking the position of the fixing seat, facilitating the limiting and fixing of the patient's neck, avoiding the patient from twisting during the examination, and improving the accuracy of the examination.

[0028] The problem that the utility model solves is that during the PET-CT examination, since a long time is required, the patient is prone to twisting during the examination, which is likely to affect the accuracy of the patient's examination. The utility model utilizes a mounting base 1, a fixing block 2, a soft bag 3 and an adjustment mechanism 4 to form an auxiliary fixing device, which is convenient for clamping and fixing the patient's neck after the patient lies flat on the PET-CT table, thereby facilitating the fixation of the patient's head and avoiding the patient's twisting during the examination to affect the detection accuracy. By providing an adjustable fixing block 2 on the surface of the mounting base 1, in conjunction with the internal adjustment mechanism 4, the position of the fixing block 2 is conveniently adjusted and solid, thereby improving the versatility of the auxiliary fixing device.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships 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.

[0030] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An auxiliary fixing device for PET-CT examination, comprising a mounting base (1), a fixing block (2), a soft bag (3) and an adjusting mechanism (4), characterized in that: The lower surface of the mounting base (1) is fixedly connected with a fixing plate (5), the surface of the fixing plate (5) is provided with a threaded locking rod (6), the inner end of the locking rod (6) is provided with a movably connected clamping plate (7), the upper surface of the mounting base (1) is provided with a slidably connected fixing block (2), the surface of the fixing block (2) is sleeve-connected with a soft bag (3), an adjustment mechanism (4) is provided at the connection between the fixing block (2) and the mounting base (1), the adjustment mechanism (4) comprises a positioning strip (8), a sliding seat (9), a toggle rod (10) and a connecting rod (11), the sliding seat (9) is located in the mounting base (1) and is fixedly connected with the fixing block (2), the side wall of the sliding seat (9) is provided with a snap-fittingly connected positioning strip (8), the toggle rod (10) and the connecting rod (11) are rotatably connected with the mounting base (1), and the two ends of the positioning strip (8) are respectively provided with a toggle rod (10) and a connecting rod (11).

2. The auxiliary fixation device for PET-CT examination according to claim 1, characterized in that: The inner end and the outer end of the toggle rod (10) form an angle of 120°, the inner end of the toggle rod (10) is parallel to the connecting rod (11), and the positioning bar (8) is rotatably connected to the toggle rod (10) and the connecting rod (11) respectively.

3. The auxiliary fixation device for PET-CT examination according to claim 2, characterized in that: A rotating shaft (12) is fixedly connected to the middle of the toggle rod (10); the rotating shaft (12) is rotatably connected to the mounting base (1) and a torsion spring (13) is provided at the connection.

4. The auxiliary fixation device for PET-CT examination according to claim 1, characterized in that: A guide groove (14) is provided on the surface of the mounting base (1), and the fixing block (2) is slidably connected to the mounting base (1) along the guide groove (14).

5. The auxiliary fixation device for PET-CT examination according to claim 1, characterized in that: The side wall of the positioning strip (8) is provided with evenly distributed positioning teeth (15), and the side wall of the sliding seat (9) is provided with a positioning groove (16), and the positioning groove (16) and the positioning teeth (15) are engaged with each other.

6. The auxiliary fixation device for PET-CT examination according to claim 1, characterized in that: The outer end of the locking rod (6) is fixedly connected to a handle (17), and a ball head (18) is provided at the connection between the locking rod (6) and the clamping plate (7).

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