Novel limb lesion CT (Computed Tomography) marking device

Abstract

The utility model relates to a marking device for limb lesion CT (Computed Tomography). The CT marking device is simple in structure, high in diagnosis efficiency, easy and convenient to operate, safe and reliable. The novel limb lesion CT marking device comprises a first supporting ring, a second supporting ring, a marking assembly, a locking device and a protection device, the first supporting ring and the second supporting ring are rotationally connected through the locking device, and a first double-groove track is arranged on the first supporting ring; a second double-groove rail is arranged on the second supporting ring; the marking assembly comprises a first marking sliding block and a second marking sliding block. The first marking sliding block is arranged on the first double-groove rail in a sliding mode, and the second marking sliding block is arranged on the second double-groove rail in a sliding mode. The protection device comprises a first protection pad and a second protection pad, the first protection pad is arranged on the inner wall of the first supporting ring, and the second protection pad is arranged on the inner wall of the second supporting ring.

Description

Technical Field

[0001] This utility model relates to a marking device for CT scans, and more particularly to a marking device for CT scans of limb lesions. Background Technology

[0002] CT (Computed Tomography) uses a novel CT marker beam to scan a slice of the body at a specific thickness. A detector receives the CT marker beams passing through this slice, converts them into visible light, then a photoelectric converter converts them into electrical signals, and finally an analog-to-digital converter converts them into digital signals. These signals are then processed by a computer to obtain the CT values ​​(absorption values ​​per unit volume) of the CT marker beams at that slice, and these values ​​are arranged into a digital matrix. This data is then converted back into analog signals, processed by the computer, and output to a display device to show an image, also known as a cross-sectional image. Therefore, CT has the advantages of high soft tissue resolution and clear visualization of anatomical locations. CT is currently a commonly used imaging method for examining limb lesions.

[0003] In clinical practice, radiologists need to sift through a large number of CT images to detect and diagnose diseases. At this stage, medical history and physical examination results are crucial for diagnosis. However, clinicians often provide limited medical history and physical examination findings when ordering imaging examinations. Radiology technicians, by directly communicating with patients during image acquisition, can supplement the medical history and physical examination information, and mark areas of pain or suspicious lesions, significantly improving the efficiency of disease detection and aiding in diagnosis.

[0004] Therefore, there is an urgent need to provide a technical solution to address the above-mentioned shortcomings, in order to solve clinical problems and improve the accuracy of disease imaging diagnosis. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a CT marking device that is simple in structure, highly efficient in diagnosis, easy to operate, and safe and reliable.

[0006] This utility model discloses a novel CT marking device for limb lesions, comprising a first support ring, a second support ring, a marking assembly, a locking device, and a protective device. The first and second support rings are rotatably connected by the locking device. The first support ring is provided with a first double-groove track; the second support ring is provided with a second double-groove track. The marking assembly includes a first marking slider and a second marking slider. The first marking slider is slidably disposed on the first double-groove track, and the second marking slider is slidably disposed on the second double-groove track. The protective device includes a first protective pad and a second protective pad. The first protective pad is disposed on the inner wall of the first support ring, and the second protective pad is disposed on the inner wall of the second support ring.

[0007] This utility model discloses a novel CT marking device for limb lesions, wherein the first support ring is provided with a hollow first fixing part, and the second support ring is provided with a second fixing part with internal threads. The locking device is a locking screw, which passes through the first fixing part and is connected to the second fixing part by threads.

[0008] This utility model discloses a novel CT marking device for limb lesions, wherein a rubber disc spring is provided between the first fixing part and the second fixing part, and the rubber disc spring is sleeved on the locking screw.

[0009] This utility model discloses a novel CT marking device for limb lesions, wherein the first double-groove track is arranged circumferentially along the first support ring, one end of the first double-groove track is arranged close to the locking device, and the other end of the first double-groove track passes through the end of the first support ring away from the locking device; the second double-groove track is arranged circumferentially along the second support ring, one end of the second double-groove track is arranged close to the locking device, and the other end of the second double-groove track passes through the end of the second support ring away from the locking device.

[0010] This utility model discloses a novel CT marking device for limb lesions, wherein both the first marking slider and the second marking slider are provided with fastening screws, and the first marking slider and the second marking slider are respectively fixed to the first support ring and the second support ring by the fastening screws.

[0011] This invention relates to a novel CT marking device for limb lesions, wherein the first protective pad and the second protective pad are both silicone pads.

[0012] This invention relates to a novel CT marking device for limb lesions, wherein the first support ring, the second support ring, the locking screw, the first marking slider, the second marking slider, and the fastening screw are all made of polyimide.

[0013] The difference between this invention and the prior art is that this invention uses a novel CT marking device for limb lesions to mark the lesion of the patient's limb. First, the lesion of the patient's limb is placed in the marking device, and after the position is adjusted, it is locked with a locking nut. Then, the marking slider on the two support rings is slid to the lesion position. Finally, the fastening screw is turned to fix the marking slider in the lesion position. The diagnostic physician can then focus on examining the marked area using CT.

[0014] This utility model discloses a novel CT marking device for limb lesions, which includes at least the following beneficial effects:

[0015] (1) This marking device has a simple structure and low cost. When marking, the doctor only needs to slide two marking sliders, which is simple to operate and takes less time.

[0016] (2) After marking the location of the patient's lesion with the marking device, the physician can focus on the marked area for examination, which greatly improves the physician's efficiency in detecting the disease and helps in the diagnosis of the disease.

[0017] (3) All solid parts of the marking device are made of polyimide material with strong flexibility and safety, which ensures that it will not harm the patient and will not affect the CT detection, thus ensuring the accuracy of the detection.

[0018] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a novel CT marking device for limb lesions according to the present invention;

[0020] Figure 2 This is a front view of a novel CT marking device for limb lesions according to this utility model;

[0021] Figure 3 For along Figure 2 Sectional view of line AA in the middle;

[0022] Figure 4 This is a right view of a novel CT marking device for limb lesions according to this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the marking component in a novel CT marking device for limb lesions according to this utility model.

[0024] Figure label:

[0025] 01-First support ring; 11-First double-groove track; 12-First fixing part; 13-Rubber disc spring; 02-Second support ring; 21-Second double-groove track; 22-Second fixing part; 03-Marking assembly; 31-First marking slider; 32-Second marking slider; 33-Fasting screw; 04-Locking device; 41-Locking screw; 05-Protective device; 51-First protective pad; 52-Second protective pad. Detailed Implementation

[0026] like Figures 1-4 As shown, this utility model discloses a novel CT marking device for limb lesions, comprising a first support ring 01, a second support ring 02, a marking assembly 03, a locking device 04, and a protective device 05. The first support ring 01 and the second support ring 02 are rotatably connected by the locking device 04. The first support ring 01 is provided with a first double-groove track 11; the second support ring 02 is provided with a second double-groove track 21. The marking assembly 03 includes a first marking slider 31 and a second marking slider 32. The first marking slider 31 is slidably disposed on the first double-groove track 11, and the second marking slider 32 is slidably disposed on the second double-groove track 21. The protective device 05 includes a first protective pad 51 and a second protective pad 52. The first protective pad 51 is disposed on the inner wall of the first support ring 01, and the second protective pad 52 is disposed on the inner wall of the second support ring 02.

[0027] The first support ring 01 and the second support ring 02 are both semi-circular in shape. They are connected together by the locking device 04 to form a ring-shaped CT marking device. The locking device 04 is used as an axis for rotational connection, which means that the opening angle of the CT marking device can be adjusted by the first support ring 01 and the second support ring 02 to ensure that it can be clamped on the diseased limbs of patients of different body sizes. After clamping, the first support ring 01 and the second support ring 02 are locked by the locking device 04 to ensure that the two support rings do not rotate relative to each other and the CT marking device will not slip off the patient's limb. The first protective pad 51 and the second protective pad 52, which are firmly attached to the inner walls of the first support ring 01 and the second support ring 02, are soft and compressible protective pads. On the one hand, this can enhance the patient's comfort. On the other hand, since the limbs of patients of different body sizes are of different thicknesses, the degree of compression of the protective pads after the CT marking device is clamped on the patient's limb and formed into a circle is also different, which enhances the adaptability of the CT marking device. The first double-groove track 11 is arranged circumferentially along the first support ring. One end of the first double-groove track 11 is located near the locking device 04, and the other end of the first double-groove track 11 passes through the end of the first support ring 01 away from the locking device 04. The second double-groove track 21 is arranged circumferentially along the second support ring 02. One end of the second double-groove track 21 is located near the locking device 04, and the other end of the second double-groove track 21 passes through the end of the second support ring 02 away from the locking device 04. Both the first marking slider 31 and the second marking slider 32 are provided with grooves matching the double-groove tracks. The marking sliders slide into the double-groove tracks from the open end of the support ring (i.e., the end of the support ring away from the locking device 04). This facilitates the installation, removal, or maintenance of the marking sliders and ensures that the first marking sliders 31 and 32 on the first support ring 01 and the second support ring 02 can slide from the first double-groove track 11 and the second double-groove track 21 to any part of the patient's limb periphery. If there are multiple lesions on the limb, additional marking sliders can be added to mark the locations of the lesions.

[0028] When examining a patient, the physician opens the first support ring 01 and the second support ring 02, clamps the CT marking device onto the patient's limb, and then closes the support ring. During the closing process, the first protective pad 51 and the second protective pad 52 gradually press against the patient's limb and produce corresponding deformation. After closing, the device is locked by the locking device 04. Then, the first marking slider 31 and the second marking slider 32 are slid to the lesion location on the limb for marking. After marking the lesion location, the physician focuses on examining the marked area. This method is not only simple to operate, but also greatly improves the physician's efficiency in detecting diseases and helps in the diagnosis of diseases.

[0029] like Figure 1 , 3As shown in Figure 4, the first support ring 01 is also provided with a hollow first fixing part 12, and the second support ring 02 is also provided with a second fixing part 22 with internal threads. The locking device 04 is a locking screw 41, which passes through the first fixing part 12 and is connected to the second fixing part 22 by threads.

[0030] During installation, the first fixing part 12 is located above the second fixing part 22. The upper end of the locking screw 41 is smooth, and the lower end is provided with a thread that matches the internal thread of the second fixing part 22. The locking screw 41 is inserted into the first fixing part 12 and the second fixing part 22 and is connected to the second fixing part 22 by threads, so that the first support ring 01 and the second support ring 02 are connected to form a ring. That is, the locking screw 41 passes through the first fixing part 12 and is connected to the second fixing part 22 by threads. When in use, the two support rings are opened. When opened, the first support ring 01 rotates around the upper end of the locking screw 41 to clamp the CT marking device on the patient's limb. Then the two support rings are closed. After closing, the locking screw 41 is tightened to ensure that the two support rings do not rotate relative to each other, so that the CT marking device is firmly fixed on the patient's limb. Then the marking slider is slid to mark and examine.

[0031] like Figure 1 , 3 As shown in Figure 4, a rubber disc spring 13 is provided between the first fixing part 12 and the second fixing part 22, and the rubber disc spring 13 is sleeved on the locking screw 41.

[0032] When the locking screw 41 is tightened to fix the first support ring 01 and the second support ring 02, the rubber disc spring 13 between the first fixing part 12 and the second fixing part 22 is compressed, thereby generating a preload force, which further strengthens the firmness of the two support rings and ensures that the CT marking device will not slip off the patient's limb.

[0033] like Figure 1 , 3 As shown in Figures 4 and 5, both the first marking slider 31 and the second marking slider 32 are provided with fastening screws 33, and the first marking slider 31 and the second marking slider 32 are fixed to the first support ring 01 and the second support ring 02 respectively by fastening screws 33.

[0034] To ensure accurate marking of the location of lesions on the patient's limbs, both the first marking slider 31 and the second marking slider 32 are provided with a threaded hole that matches the fastening screw 33. The fastening screw 33 is threaded onto the marking slider. In use, after clamping the CT marking device onto the patient's limb, the first marking slider 31 and the second marking slider 32 are slid to the lesion location for marking. Then, the fastening screw 33 on the marking slider is tightened appropriately to ensure that the marking slider does not loosen on the double-groove track or move due to loosening, so that the marking slider is always fixed in the marking position to assist the physician in performing CT examinations.

[0035] Both the first protective pad 51 and the second protective pad 52 are silicone pads.

[0036] Both the first protective pad 51 and the second protective pad 52 are made of soft, antibacterial, and highly slip-resistant silicone material. On the one hand, its softness conforms to the curves of the patient's limbs, reducing the pressure caused by the device contacting the limbs and thus enhancing the patient's comfort. On the other hand, its strong antibacterial properties can effectively inhibit bacterial growth. In addition, its superior slip-resistant properties can prevent the CT marking device from slipping off the patient's limbs, and it will not wear out excessively even after long-term use, thus extending its service life.

[0037] To prevent relative friction between the first protective pad 51 and the second protective pad 52 and the first marking slider 31 and the second marking slider 32, grooves can be provided on the contact surfaces of the two protective pads and the support ring. This ensures that the protective pads and the support ring are firmly connected, and prevents the two marking sliders from being obstructed by friction with the protective pads, making their sliding more flexible.

[0038] The first support ring 01, the second support ring 02, the locking screw 41, the first marking slider 31, the second marking slider 32, and the fastening screw 33 are all made of polyimide.

[0039] Besides the protective pad being made of silicone, the first support ring 01, the second support ring 02, the locking screw 41, the first marking slider 31, the second marking slider 32, and the fastening screw 33 are all made of high-strength, high-toughness polyimide material with good wear resistance and insulation. This ensures that the CT marking device does not harm the patient and does not affect the CT examination, thus guaranteeing the accuracy of the detection. In addition, the material properties of polyimide ensure that the CT marking device is sturdy and wear-resistant, further extending its service life. Furthermore, there is no magnetic interference during the CT examination, effectively avoiding any impact on the display of limb structures.

[0040] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A new type of four-limb lesion CT marker device, characterized in that: The application relates to a support ring, a second support ring, a marking assembly, a locking device and a protection device, wherein the first support ring and the second support ring are rotationally connected through the locking device, the first support ring is provided with a first double-groove track, the second support ring is provided with a second double-groove track, the marking assembly comprises a first marking slider and a second marking slider, the first marking slider is slidingly arranged on the first double-groove track, the second marking slider is slidingly arranged on the second double-groove track, the protection device comprises a first protection pad and a second protection pad, the first protection pad is arranged on the inner wall of the first support ring, and the second protection pad is arranged on the inner wall of the second support ring.

2. The new type of limb lesion CT marker device according to claim 1, characterized in that: The first support ring is further provided with a hollow first fixing part, the second support ring is further provided with a second fixing part internally provided with threads, the locking device is a locking screw, and the locking screw is threadedly connected with the first fixing part and the second fixing part.

3. The new type of limb lesion CT marker device according to claim 2, characterized in that: A rubber disc spring is arranged between the first fixing part and the second fixing part, and the rubber disc spring is sleeved on the locking screw.

4. The new type of limb lesion CT marker device according to claim 3, characterized in that: The first double-groove track is arranged along the circumference of the first support ring, one end of the first double-groove track is arranged close to the locking device, the other end of the first double-groove track penetrates through the end of the first support ring far away from the locking device, the second double-groove track is arranged along the circumference of the second support ring, one end of the second double-groove track is arranged close to the locking device, and the other end of the second double-groove track penetrates through the end of the second support ring far away from the locking device.

5. The new type of limb lesion CT marker device according to claim 4, characterized in that: The first marking slider and the second marking slider are both provided with fastening screws, and the first marking slider and the second marking slider are fixed on the first support ring and the second support ring through the fastening screws.

6. The new type of limb lesion CT marker device according to claim 5, characterized in that: The first protection pad and the second protection pad are both silica gel pads.

7. The new type of limb lesion CT marker device according to claim 6, characterized in that: The materials of the first support ring, the second support ring, the locking screw, the first marking slider, the second marking slider and the fastening screws are all polyimide.

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