Simple saline bag for eliminating neck CT scanning hardening artifacts

Abstract

The utility model provides a simple saline bag for eliminating neck CT scanning hardening artifacts. The simple saline bag comprises two saline bag bodies, an elastic band arranged between the two saline bag bodies and a clamping mechanism arranged between the two saline bag bodies. According to the saline bag, the water injection openings are formed in the two saline bag bodies, saline can be injected into the saline bag bodies or discharged out of the saline bag bodies through the water injection openings, and therefore the amount of saline can be properly increased or decreased according to the size of a patient, and the saline bag bodies can be hung by placing the elastic band on the rear portion of the neck of the patient. In addition, the saline bag body can be effectively prevented from falling off when a patient lies flat through the clamping mechanism, so that the neck CT scanning hardening artifacts can be eliminated or reduced during examination, the image quality is improved, and the image diagnosis process is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a simple saline bag for eliminating cervical CT scanning hardening artifacts. Background Art

[0002] During neck CT scans, uneven X-ray attenuation can cause hardening artifacts at the neck and thoracic inlet, compromising neck CT imaging and analysis, such as thyroid CT scans and head and neck CTA. Studies have shown that placing saline bags at the base of both necks and at the thoracic inlet can even out tissue X-ray attenuation, effectively eliminating and reducing neck hardening artifacts. However, the required saline bag size and the required volume vary among patients (height, weight, and other factors). Therefore, a simple saline bag was designed to eliminate hardening artifacts during neck CT scans. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a simple saline bag that is easy to fix and adjust the volume inside the bag and eliminates hardening artifacts in CT scans of the neck.

[0004] The utility model provides the following technical solution: a simple saline bag for eliminating hardening artifacts in CT scans of the neck, comprising two saline bag bodies, an elastic band arranged between the two saline bag bodies, and a locking mechanism arranged between the two saline bag bodies; the locking mechanism comprises a buckle seat arranged on one of the saline bag bodies, and a buckle assembly arranged on the other saline bag body; the buckle seat comprises a mounting block connected to the saline bag body, a locking unit arranged inside the mounting block, and a squeezing unit for pushing the locking unit to unlock; the buckle assembly comprises a buckle that can be engaged with the locking unit, a connecting belt connected to the buckle, and a winding unit for winding up the connecting belt.

[0005] Furthermore, the winding unit includes a tape frame connected to the saline bag body, a rotating shaft rotatably connected to the inner side of the tape frame, a portion of the connecting tape is wound around the rotating shaft, and the other portion passes through the tape frame and is connected to the buckle, a plurality of springs are arranged between the tape frame and the rotating shaft, a pressing member and an extruding member slidably connected to the tape frame, and a plurality of second springs are arranged between the pressing member and the tape frame, the pressing member can slide vertically along the tape frame, the extruding member can slide laterally along the tape frame, and the sliding of the extruding member squeezes the pressing member and pushes it to slide vertically to press a portion of the connecting tape.

[0006] Furthermore, a partition plate is provided inside the mounting block, and the partition plate divides the interior of the mounting block into a first inner cavity and a second inner cavity. A connecting hole is provided on the partition plate to connect the first inner cavity and the second inner cavity. The extrusion unit is located in the second inner cavity, and a part of the positioning unit is located in the second inner cavity and the other part extends into the first inner cavity through the connecting hole.

[0007] Furthermore, the positioning unit includes a plurality of guide rods arranged on the mounting block, a first wedge block slidably connected to the guide rods, and a plurality of first springs arranged between the first wedge block and the mounting block, and the first wedge block extends into the first inner cavity.

[0008] Furthermore, the extrusion unit includes a plurality of contact posts arranged on the first wedge block, an extrusion block slidably connected in the second inner cavity of the mounting block, and a second wedge block corresponding to the contact posts arranged on the extrusion block, wherein the second wedge block moves toward the contact posts to extrude the contact posts.

[0009] Furthermore, a locking hole is provided on the locking member, and when the first wedge-shaped block is located in the locking hole, the first wedge-shaped block is engaged with the locking member.

[0010] Furthermore, a plurality of saw teeth are provided on a side of the pressing member close to the connecting belt, and the saw teeth are evenly spaced.

[0011] Furthermore, both of the two saline bag bodies are provided with a water injection port, and a blocking cover is provided at the water injection port for blocking the water injection port.

[0012] Furthermore, a notch is provided on a side of the mounting block close to the extrusion block, and the notch is communicated with the second inner cavity.

[0013] The beneficial effects of the utility model are as follows: by providing water injection ports on both saline bag bodies, saline can be added to or discharged from the saline bag bodies through the water injection ports, thereby facilitating appropriate increase or decrease of the amount of saline according to the patient's obesity, and by placing an elastic band behind the neck to hang the saline bag body, the saline bag body is brought closer to the middle and fits the base of the neck more closely. In addition, the length of the connecting band in the snap mechanism can be adjusted according to the patient's body shape, and by using an appropriate length of the connecting band, the snap mechanism can effectively prevent the saline bag body from falling off when the patient lies flat, thereby eliminating or reducing hardening artifacts in CT scans of the neck during examinations, improving image quality, and optimizing the image diagnosis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the buckle seat of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the buckle seat and the buckle assembly separated from each other in the utility model.

[0017] Figure 4 This is a schematic diagram of the first three-dimensional structure of the buckle assembly of the utility model.

[0018] Figure 5 This is a schematic diagram of the second three-dimensional structure of the buckle assembly of the utility model.

[0019] The marks in the accompanying drawings are: 1-saline bag body, 2-elastic band, 3-water filling port, 4-blocking cover, 5-buckle seat, 51-mounting block, 52-first inner cavity, 53-second inner cavity, 54-partition plate, 55-communication hole, 56-guide rod, 57-first wedge block, 58-first spring, 59-contact column, 510-second wedge block, 511-extrusion block, 512-notch, 6-buckle assembly, 61-buckle, 62-buckle hole, 63-connecting belt, 64-winding unit, 641-belt frame, 642-rotating shaft, 643-spring, 644-extrusion member, 645-pressing member, 646-second spring, 647-sawtooth. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] A simple saline bag to eliminate hardening artifacts on CT scans of the neck, such as Figure 1 As shown, it includes two saline bag bodies 1, an elastic band 2 arranged between the two saline bag bodies 1, and a snap-fit ​​mechanism arranged between the two saline bag bodies 1;

[0024] Among them, the saline bag body 1 is long and strip-shaped, so that the coverage area is longer, and is used to be placed on the base of the patient's neck and chest on both sides, and both saline bag bodies 1 are provided with a water inlet 3 and a blocking cover 4 provided at the water inlet 3 for blocking the water inlet 3. Saline can be added to or discharged from the saline bag body 1 through the water inlet 3. The blocking cover 4 can be threadedly connected or plugged with the water inlet 3 to prevent the saline in the saline bag body 1 from flowing out of the water inlet 3. The elastic band 2 is placed behind the neck to hang the saline bag body 1, so that the saline bag body 1 is closer to the middle and fits the base of the neck more closely. The locking mechanism can prevent the saline bag body 1 from falling off when the patient lies flat, and the length of the connecting belt 63 in the locking mechanism can be adjusted according to the patient's body shape.

[0025] The snap-fit ​​mechanism includes a snap-fit ​​seat 5 provided on one of the saline bag bodies 1 and a snap-fit ​​assembly 6 provided on the other saline bag body 1;

[0026] Among them, such as Figure 2 and Figure 3 As shown, the buckle seat 5 includes a mounting block 51 connected to the saline bag body 1, a locking unit arranged inside the mounting block 51, and an extrusion unit for pushing the locking unit to unlock; specifically, a partition plate 54 is provided inside the mounting block 51, and the partition plate 54 divides the interior of the mounting block 51 into a first inner cavity 52 and a second inner cavity 53. A connecting hole 55 is provided on the partition plate 54 to connect the first inner cavity 52 and the second inner cavity 53. The extrusion unit is located at the second inner cavity 53, and a part of the locking unit is located at the second inner cavity 53 and the other part extends into the first inner cavity 52 through the connecting hole 55; specifically, the locking unit includes two guides fixedly connected in the second inner cavity 53 of the mounting block 51. Rod 56, a first wedge block 57 slidably connected between the two guide rods 56, and two first springs 58 disposed between the first wedge block 57 and the mounting block 51. The two first springs 58 are respectively sleeved on the outer walls of the two guide rods 56. The first wedge block 57 extends into the first inner cavity 52. ​​Specifically, the extrusion unit includes two contact posts 59 rotatably connected on either side of the first wedge block 57, an extrusion block 511 slidably connected within the second inner cavity 53 of the mounting block 51, and a second wedge block 510 disposed on the extrusion block 511 and corresponding to the contact post 59. The second wedge block 510 moves toward the contact post 59 to squeeze the contact post 59.

[0027] The buckle assembly 6 includes a buckle 61 that can be engaged with the locking unit, a connecting belt 63 connected to the buckle 61, and a winding unit 64 for winding the connecting belt 63;

[0028] Specifically, such as Figure 3-Figure 5 As shown, a clamping hole 62 is provided on the clamping member 61. When the first wedge block 57 is located in the clamping hole 62, the first wedge block 57 is engaged with the clamping member 61; the winding unit 64 includes a tape frame 641 fixedly connected to the saline bag body 1, a rotating shaft 642 rotatably connected to the inner side of the tape frame 641, a part of the connecting belt 63 is wound around the rotating shaft 642, and the other part passes through the tape frame 641 and is connected to the clamping member 61, two springs 643 are provided between the tape frame 641 and the rotating shaft 642, the two springs 643 are respectively distributed on both sides of the inner side of the tape frame 641, and the two springs 643 are both sleeved on the outer wall of the rotating shaft 642. The pressing member 645 and the extruding member 644 are slidingly connected on the tape frame 641. The upper side of the pressing member 645 has an inclined surface, and the lower side of the extruding member 644 also has an inclined surface. The inclined surfaces of the pressing member 645 and the extruding member 644 provide an extrusion fit. Two second springs 646 are arranged between the pressing member 645 and the tape frame 641. The two second springs 646 are respectively located on both sides of the pressing member 645. The pressing member 645 can slide vertically along the tape frame 641, and the extruding member 644 can slide horizontally along the tape frame 641. The extruding member 644 slides to squeeze the pressing member 645, pushing it to slide vertically to press a portion of the connecting belt 63.

[0029] Working principle: When the simple saline bag is needed, the patient lies flat on the scanning bed, and then the medical staff places the saline bag body 1 on the base of the patient's neck and chest on both sides, and places the elastic band 2 behind the neck, and then buckles the clamping mechanism according to the patient's weight to prevent the saline bag body 1 from sliding off the front chest. The water inlet 3 of the saline bag body 1 can increase or decrease the amount of saline according to the patient's height, weight and size. The specific operation of the clamping mechanism is as follows: the operator can adjust the available length of the connecting belt 63 according to the patient's body shape. In the initial state, the second spring 646 is in a stretched state, and the spring 643 is also in a deformed state. First, the operator pushes the extrusion member 644 to squeeze When the connecting strap 63 is adjusted to its original position, the operator can slide the squeezing member 644 to squeeze the pressing member 645, and the pressing member 645 will squeeze the connecting strap 63. The strap 63 is pressed, thereby the connecting strap 63 is in an inactive state, and the connecting strap 63 will not be retracted or pulled out. Then the operator places the buckle 61 into the first inner cavity 52, and squeezes the first wedge block 57 when the buckle 61 is placed, and the first spring 58 is compressed. When the clamping hole 62 of the buckle 61 is aligned with the first wedge block 57, the first spring 58 resets and drives the first wedge block 57 to be clamped into the clamping hole 62 of the buckle 61, thereby making the buckle seat 5 and the buckle assembly 6 engage and connect, preventing the two saline bag bodies 1 from falling off the patient's chest. When it is necessary to separate the buckle seat 5 from the buckle assembly 6, the operator only needs to press the squeeze button. The pressing block 511 and the extrusion block 511 drive the second wedge block 510 to squeeze the contact column 59, and the contact column 59 moves away from the connecting hole 55. The contact column 59 will drive the first wedge block 57 to move away from the locking hole 62. The first spring 58 is compressed. When the first wedge block 57 is disengaged from the locking hole 62, the operator can remove the fastener 61 from the first inner cavity 52, and then release the extrusion block 511. The reset of the first spring 58 will drive the first wedge block 57 to reset. The reset of the first wedge block 57 drives the contact column 59 to reset. The contact column 59 will push the second wedge block 510 to reset, thereby realizing the separation of the buckle seat 5 and the buckle assembly 6.

[0030] Furthermore, a plurality of serrations 647 are provided on one side of the pressing member 645 close to the connecting belt 63 , and the serrations 647 are evenly spaced.

[0031] When the pressing member 645 presses the connecting belt 63 , the connecting belt 63 will be less likely to move due to the serrations 647 .

[0032] A notch 512 is provided on one side of the mounting block 51 close to the extrusion block 511 , and the notch 512 is communicated with the second inner cavity 53 .

[0033] The notch 512 allows an operator to more conveniently press the extrusion block 511 to disengage the first wedge block 57 from the locking hole 62 .

[0034] In summary, by providing the water injection port 3 on both saline bag bodies 1, saline can be added to or discharged from the saline bag body 1 through the water injection port 3, thereby facilitating appropriate increase or decrease of the amount of saline according to the patient's fatness or thinness. Moreover, by placing the elastic band 2 behind the neck to hang the saline bag body 1, the saline bag body 1 is brought closer to the middle and fits the base of the neck more closely. In addition, the length of the connecting belt 63 in the snap-fit ​​mechanism can be adjusted according to the patient's body shape. By adopting the appropriate length of the connecting belt 63, the snap-fit ​​mechanism can effectively prevent the saline bag body 1 from falling off when the patient lies flat. Therefore, during the examination, the hardening artifacts of the CT scan of the neck can be eliminated or reduced, the image quality can be improved, and the image diagnosis process can be optimized.

[0035] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A simple saline bag for eliminating cervical CT scan hardening artifacts, characterized in that: The invention comprises two saline bag bodies, an elastic band arranged between the two saline bag bodies, and a snap-fit ​​mechanism arranged between the two saline bag bodies; the snap-fit ​​mechanism comprises a snap-fit ​​seat arranged on one of the saline bag bodies, and a snap-fit ​​assembly arranged on the other saline bag body; the snap-fit ​​seat comprises a mounting block connected to the saline bag body, a snap-fit ​​unit arranged inside the mounting block, and a squeezing unit for pushing the snap-fit ​​unit to unlock; the snap-fit ​​assembly comprises a snap member that can be snapped with the snap-fit ​​unit, a connecting belt connected to the snap member, and a winding unit for winding the connecting belt.

2. The simple saline bag according to claim 1, characterized in that: The winding unit includes a tape-laying frame connected to the saline bag body, a rotating shaft rotatably connected to the inner side of the tape-laying frame, a portion of the connecting tape is wound around the rotating shaft, and another portion passes through the tape-laying frame and is connected to the buckle, a plurality of springs are arranged between the tape-laying frame and the rotating shaft, a pressing member and an extruding member slidably connected to the tape-laying frame, and a plurality of second springs are arranged between the pressing member and the tape-laying frame, the pressing member can slide vertically along the tape-laying frame, and the extruding member can slide laterally along the tape-laying frame, and the sliding of the extruding member presses the pressing member, pushing the pressing member to slide vertically to press a portion of the connecting tape.

3. The simple saline bag according to claim 2, characterized in that: A partition plate is provided inside the mounting block, and the partition plate divides the interior of the mounting block into a first inner cavity and a second inner cavity. A connecting hole is provided on the partition plate to connect the first inner cavity and the second inner cavity. The extrusion unit is located in the second inner cavity, and a part of the positioning unit is located in the second inner cavity and the other part extends into the first inner cavity through the connecting hole.

4. The simple saline bag according to claim 3, characterized in that: The positioning unit includes a plurality of guide rods arranged on the mounting block, a first wedge block slidably connected to the guide rods, and a plurality of first springs arranged between the first wedge block and the mounting block, and the first wedge block extends into the first inner cavity.

5. The simple saline bag according to claim 4, characterized in that: The extrusion unit includes a plurality of contact posts arranged on the first wedge block, an extrusion block slidably connected in the second inner cavity of the mounting block, and a second wedge block arranged on the extrusion block corresponding to the contact posts, wherein the second wedge block moves toward the contact posts to extrude the contact posts.

6. The simple saline bag according to claim 5, characterized in that: The fastener is provided with a fastening hole. When the first wedge-shaped block is located in the fastening hole, the first wedge-shaped block is engaged with the fastener.

7. The simple saline bag according to claim 2, characterized in that: A plurality of saw teeth are provided on one side of the pressing member close to the connecting belt, and the saw teeth are evenly spaced.

8. The simple saline bag according to claim 1, characterized in that: The two saline bag bodies are both provided with a water injection port and a blocking cover provided at the water injection port for blocking the water injection port.

9. The simple saline bag according to claim 5, characterized in that: A notch is provided on one side of the mounting block close to the extrusion block, and the notch is communicated with the second inner cavity.

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