Auxiliary air occlusion device for heart dual-source CT examination

Abstract

The utility model relates to medical auxiliary closed gas device technical field, concretely, auxiliary closed gas device for heart dual source CT examination is provided, it includes breathing mask, and breathing mask is equipped with the installation base, and the installation base is equipped with the mounting seat in, the lower end part of mounting seat is equipped with the set of opposite setting's clamping jaw, and the one end part of clamping jaw is hinged with mounting seat, and the other end of clamping jaw is equipped with the clamping block for the nose wing of examinee and carries out the clamping, and the mounting seat is equipped with the drive mechanism for driving the clamping block rotation to each other close in clamping jaw place to carry out the clamping to examinee's nose wing. The utility model carries out the clamping to examinee's nose wing through the clamping block, thereby avoided the phenomenon that the image appears fuzzy due to examinee's independent breathing in the process of carrying out the examination of heart dual source CT, thereby preferably promoted examinee's heart dual source CT accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of medical auxiliary air-holding devices, specifically, to an auxiliary air-holding device for dual-source cardiac CT examination. Background Technology

[0002] Dual-source cardiac CT is a relatively advanced cardiac imaging technique. During a dual-source cardiac CT scan, to improve the accuracy of the scan, the patient needs to hold their breath. During respiration, the chest cavity undergoes rhythmic movements, causing changes in the position and shape of the heart. Although dual-source cardiac CT scans are very fast, respiratory movements can still cause different parts of the heart to be in different positions at different times during image acquisition. When the image is reconstructed after the scan, these positional changes caused by respiratory movements can lead to image blurring.

[0003] When middle-aged and elderly individuals undergo dual-source cardiac CT scans, their respiratory muscle strength gradually weakens, and the elastic recoil of the lungs decreases, leading to a decline in respiratory function. This makes it difficult for them to maintain steady and even breathing or hold their breath effectively during the examination. For example, when breath-holding is required, they may not be able to hold their breath for a sufficient duration (usually around 15-20 seconds). Although medical staff instruct middle-aged and elderly individuals on breath-holding techniques before the dual-source cardiac CT scan, in the actual examination, due to factors such as nervousness, some may still involuntarily breathe through their nose. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0005] An auxiliary air-holding device for dual-source cardiac CT examination includes a breathing mask, a mounting base at the breathing mask, and a mounting seat in the mounting base; a set of opposing grippers at the lower end of the mounting seat, one end of the grippers being hinged to the mounting seat, and the other end of the grippers having a clamping block for clamping the subject's nasal ala; and a drive mechanism at the mounting seat for driving the clamping blocks at the grippers to rotate and move closer together to clamp the subject's nasal ala.

[0006] As a preferred embodiment of this utility model, the driving mechanism includes a mounting base through hole disposed in the mounting base, a mounting column slidably disposed in the mounting base through hole, the lower end of the mounting column extending out of the mounting base through hole, a connecting block disposed at the lower end of the mounting column extending out of the mounting base through hole, a connecting rod disposed between the connecting block and the gripper, one end of the connecting rod being hinged to the connecting block, and the other end of the connecting rod being hinged to the middle section of the gripper; the mounting base is provided with a lifting mechanism for lifting the mounting column so that the gripper rotates to move closer to each other.

[0007] As a preferred embodiment of this utility model, the upper end of the mounting column extends out of the mounting seat through hole, and the upper end of the mounting column extending out of the mounting seat through hole is provided with an annular baffle. The lifting mechanism includes a spring sleeved on the mounting column.

[0008] As a preferred embodiment of this utility model, the mounting base is provided with an adjustment mechanism for adjusting the spring compression. The adjustment mechanism includes an internal threaded hole provided at the mounting base, an adjustment seat provided in the internal threaded hole, and an external threaded sleeve that mates with the internal threaded hole. The upper end of the external threaded sleeve is provided with a hexagonal screwing block, and the screwing block is provided with a screwing block through hole that mates with the mounting post.

[0009] As a preferred embodiment of this utility model, a rubber gasket is provided at the clamping block.

[0010] As a preferred embodiment of this utility model, the breathing mask is provided with an air inlet.

[0011] As a preferred embodiment of this utility model, the breathing mask is provided with straps for fixing the breathing mask to the subject's face.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model uses a clamping block to hold the patient at the nasal wing, thereby avoiding the blurring of images caused by the patient's spontaneous breathing during the cardiac dual-source CT examination, thus significantly improving the accuracy of the cardiac dual-source CT.

[0013] This invention, through the setting of the adjustment mechanism, avoids both insufficient spring compression leading to an inability to achieve optimal clamping of the examinee's nasal wings and excessive spring compression leading to discomfort for the examinee. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the auxiliary air-holding device for dual-source cardiac CT examination in Example 1; Figure 2 A cross-section of the auxiliary air-holding device used in dual-source cardiac CT examination in Example 1; Figure 3 This is an exploded view of the mounting base structure in Example 1. Detailed Implementation

[0015] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0016] Example 1 like Figure 1-2As shown, this embodiment provides an auxiliary air-holding device for dual-source cardiac CT examination, which includes a breathing mask 110. The breathing mask 110 is provided with a strap 160 for fixing the breathing mask 110 to the face of the examinee and an air inlet 150. A mounting base 120 is provided at the breathing mask 110, and in this embodiment, the mounting base 120 is threadedly connected to the breathing mask 110. A mounting seat 130 is provided in the mounting base 120; a set of opposing grippers 210 is provided at the lower end of the mounting seat 130. One end of the gripper 210 is hinged to the mounting seat 130, and the other end of the gripper 210 is provided with a clamping block 220 for clamping the nose of the examinee. A rubber pad 290 is provided at the clamping block 220. A drive mechanism is provided at the mounting seat 130 for driving the clamping block 220 at the gripper 210 to rotate and move closer to each other to clamp the nose of the examinee.

[0017] In use, the breathing mask 110 is first secured to the subject's face with straps. Then, a drive mechanism rotates the grippers 210 closer together, causing the clamping block 220 to hold the subject's nose. This prevents blurry images caused by the subject breathing spontaneously during the dual-source cardiac CT scan, thus significantly improving the accuracy of the scan. After the scan, the drive mechanism rotates the grippers 210 further apart, releasing the clamping block 220 from the subject's nose, allowing the subject to breathe through the air inlet 150 of the breathing mask 110. The rubber pad 290 further enhances comfort when holding the mask to the subject's nose, preventing discomfort.

[0018] Furthermore, the driving mechanism includes a mounting base through hole 230 disposed in the mounting base 130, a mounting post 240 slidably disposed in the mounting base through hole 230, the lower end of the mounting post 240 extending out of the mounting base through hole 230, a connecting block 250 disposed at the lower end of the mounting post 240 extending out of the mounting base through hole 230, a connecting rod 260 disposed between the connecting block 250 and the gripper 210, one end of the connecting rod 260 being hinged to the connecting block 250, and the other end of the connecting rod 260 being hinged to the middle section of the gripper 210; the mounting base 130 is provided with a lifting mechanism for lifting the mounting post 240 so that the gripper 220 rotates to move closer to each other. The upper end of the mounting post 240 extending out of the mounting base through hole 230, an annular baffle 270 disposed at the upper end of the mounting post 240 extending out of the mounting base through hole 230, and the lifting mechanism includes a spring 280 sleeved on the mounting post 240.

[0019] By setting up the drive mechanism, during the detection process of dual-source cardiac CT, the spring force of the spring 280 and the cooperation between the ring baffle 270 can cause the mounting column 240 to move upward and drive the connecting rod 260 to move upward. The connecting rod 260 drives the gripper 210 to rotate, thereby causing the clamping blocks 220 at the gripper 210 to rotate closer to each other, thus achieving clamping of the patient's nasal ala.

[0020] Combination Figure 3 As shown, the mounting base 130 is provided with an adjustment mechanism for adjusting the compression of the spring 280. The adjustment mechanism includes an internal threaded hole 310 provided at the mounting base 130, an adjustment seat 140 provided in the internal threaded hole 310, and an external threaded sleeve 320 that mates with the internal threaded hole 310. The upper end of the external threaded sleeve 320 is provided with a hexagonal rotating block 330, and the rotating block 330 is provided with a rotating block through hole 340 that is clearance-fitted with the mounting post 240.

[0021] By adjusting the mechanism, the compression of spring 280 can be adjusted by turning the screw block 330 before the formal dual-source cardiac CT examination. This ensures that the compression of spring 280 is kept at a moderate level, thus avoiding both insufficient compression that would prevent proper clamping of the patient's nasal ala and excessive compression that would cause discomfort to the patient.

[0022] The working principle of the auxiliary air-holding device for dual-source cardiac CT examination in this embodiment is as follows: Before the formal dual-source cardiac CT scan, the breathing mask 110 is placed on the patient's face. The compression of the spring 280 is then adjusted. Once the compression is appropriate, the mounting post 240 is loosened. The spring force and the interaction between the spring 280 and the annular baffle 270 cause the mounting post 240 to move upwards, which in turn moves the connecting rod 260 upwards. The connecting rod 260 then rotates the gripper 210, causing the clamping blocks 220 at the gripper 210 to rotate closer together, thus clamping the patient's nasal ala. The CT scan can then be performed. After the scan, the mounting post 240 is pressed down, causing the gripper 210 to rotate further apart, releasing the clamping blocks 220 from the patient's nasal ala. This allows the patient to breathe through the air inlet 150 of the breathing mask 110. The breathing mask 110 is then removed from the patient's face.

[0023] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. An auxiliary air-holding device for dual-source cardiac CT examination, characterized in that: The device includes a breathing mask (110), a mounting base (120) is provided at the breathing mask (110), and a mounting seat (130) is provided in the mounting base (120); the lower end of the mounting seat (130) is provided with a set of opposing grippers (210), one end of the grippers (210) is hinged to the mounting seat (130), and the other end of the grippers (210) is provided with a clamping block (220) for clamping the nose of the examinee; the mounting seat (130) is provided with a drive mechanism for driving the clamping block (220) at the grippers (210) to rotate to move closer to each other to clamp the nose of the examinee.

2. The auxiliary air-holding device for dual-source cardiac CT examination according to claim 1, characterized in that: The driving mechanism includes a mounting seat through hole (230) in the mounting seat (130), a mounting post (240) is slidably provided in the mounting seat through hole (230), the lower end of the mounting post (240) extends out of the mounting seat through hole (230), a connecting block (250) is provided at the lower end of the mounting post (240) extending out of the mounting seat through hole (230), a connecting rod (260) is provided between the connecting block (250) and the gripper (210), one end of the connecting rod (260) is hinged to the connecting block (250), and the other end of the connecting rod (260) is hinged to the middle section of the gripper (210); the mounting seat (130) is provided with a lifting mechanism for lifting the mounting post (240) so that the gripper (220) rotates to move closer to each other.

3. The auxiliary air-holding device for dual-source cardiac CT examination according to claim 2, characterized in that: The upper end of the mounting post (240) extends out of the mounting seat through hole (230), and the upper end of the mounting post (240) extending out of the mounting seat through hole (230) is provided with an annular baffle (270). The lifting mechanism includes a spring (280) sleeved on the mounting post (240).

4. The auxiliary air-holding device for dual-source cardiac CT examination according to claim 3, characterized in that: The mounting base (130) is provided with an adjustment mechanism for adjusting the compression of the spring (280). The adjustment mechanism includes an internal threaded hole (310) provided at the mounting base (130). An adjustment seat (140) is provided in the internal threaded hole (310). The adjustment seat (140) includes an external threaded sleeve (320) that mates with the internal threaded hole (310). The upper end of the external threaded sleeve (320) is provided with a hexagonal screwing block (330). The screwing block (330) is provided with a screwing block through hole (340) that is clearance-fitted with the mounting post (240).

5. The auxiliary air-holding device for dual-source cardiac CT examination according to claim 1, characterized in that: A rubber gasket (290) is provided at the clamping block (220).

6. The auxiliary air-holding device for dual-source cardiac CT examination according to claim 1, characterized in that: An air inlet (150) is provided at the breathing mask (110).

7. The auxiliary air-holding device for dual-source cardiac CT examination according to claim 1, characterized in that: The breathing mask (110) is provided with a strap (160) for securing the breathing mask (110) to the subject's face.

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