Partitioned inflation head neck shoulder fixing pad for DSA and head angle adjusting method

Abstract

The present application relates to the technical field of medical intervention surgery auxiliary instrument, in particular to a partitioned inflation and deflation head-neck-shoulder fixing pad for DSA and a head angle adjusting method. The fixing pad comprises a pillow-back air bag, a shoulder-back air bag and a back neck supporting pillow for supporting the back neck of a patient. The pillow-back air bag comprises a backward leaning sub air bag and a flat sub air bag which are independent of each other, and a forward leaning sub air bag can be further arranged. The shoulder-back air bag can be composed of multiple shoulder-back sub air bags which can independently adjust pressure. By partitioned inflation and deflation of the shoulder-back air bag and each sub air bag of the pillow-back air bag, a backward leaning, substantially flat and forward leaning head-neck-shoulder supporting working surface can be formed. The two side cheek air bags can be independently adjusted to realize flexible limiting or auxiliary side head. The components located in the main imaging area of DSA are preferably made of non-metal see-through materials with low X-ray attenuation. The present application can adjust the head angle of the patient while maintaining continuous support and stability of the head-neck-shoulder, and adapt to different body position requirements in DSA intervention diagnosis and treatment.

Description

Technical Field

[0001] This invention relates to the field of medical interventional surgical aids, specifically to a DSA (Digital Subtraction Angiography) particulate inflation / deflation head, neck, and shoulder fixation pad and a head angle adjustment method. Background Technology

[0002] Digital subtraction angiography (DSA) is a commonly used image-guided technique in interventional procedures such as cerebral angiography, emergency thrombectomy, aneurysm embolization, and stent placement. Patients are typically placed in a supine position on the DSA bed, and the stability of the head and neck position directly affects intraoperative fluoroscopic positioning, pathway visualization, catheter manipulation continuity, and the efficiency of medical staff cooperation. Especially during cerebrovascular interventional surgery, patients may exhibit head swaying, occipital displacement, or shoulder and back slippage due to tension, altered consciousness, agitation, gag reflex, pain stimulation, or decreased cooperation.

[0003] Current technologies commonly use head and neck pillows or inflatable cushions to restrict head movement. Head and neck pillows are typically fixed-shape sponge, gel, or foam pads placed behind the patient's head or neck to improve head and neck position by elevating or limiting it. Their structure is usually a single solid pad without partitioned inflation chambers, making it impossible to adjust them separately for different areas such as the back of the head, left and right cheeks, and shoulders / back during surgery. Inflatable cushions typically consist of a single air bladder or a few interconnected air chambers, inflated and deflated through a single vent. While these products can adjust the overall height, they often cannot achieve independent control of airflow between the back of the head, left cheek, right cheek, and shoulders / back, nor can they quickly deflate one side when the patient vomits, needs oral cleaning, or requires head tilting.

[0004] Patent application 202021706097.5 discloses an inflatable pillow that uses four independent air bladders to create a low, flat center section, effectively securing the patient's head. By inflating different air bladders, the pillow's shape can be adjusted to achieve various effects, such as a higher left side, a higher right side, a higher head side, or an overall higher position. This caters to the needs of different positioning during surgery and postoperative recovery, preventing a feeling of head displacement and muscle stiffness caused by head traction. Furthermore, the inflatable pillow's elasticity provides comfort and prevents pressure injuries caused by prolonged compression.

[0005] However, the aforementioned inflatable pillows mainly achieve localized elevation or lateral support through changes in the height of different air bladders, lacking a coordinated support relationship between the back of the head, the back of the neck, and the shoulder and back areas, making it difficult to fully meet the needs of body position adjustment during DSA interventional diagnosis and treatment. Summary of the Invention

[0006] 1. The problem to be solved To address the problem that existing technologies are insufficient to meet the needs of body positioning during DSA interventional diagnosis and treatment, this invention provides a DSA-based zoned inflation / deflation head, neck, and shoulder fixation pad and a head angle adjustment method. Through coordinated support of the occipital, posterior neck, and shoulder / back areas and zoned inflation / deflation, it can fully meet the needs of body positioning during DSA interventional diagnosis and treatment.

[0007] 2. Technical Solution To solve the above problems, the technical solution adopted by the present invention is as follows: The first aspect of the present invention provides a DSA-compatible partitioned inflation and deflation head, neck and shoulder fixation pad, including a occipital airbag and a shoulder and back airbag, each airbag being provided with an inflation and deflation port; It also includes a cervical support pillow for supporting the back of the patient’s neck, the cervical support pillow being disposed between the shoulder and back airbag and the occipital airbag; The occipital airbag includes a backward tilting sub-airbag and a flattening sub-airbag. The flattening sub-airbag is connected below the backward tilting sub-airbag. The backward tilting sub-airbag and the flattening sub-airbag are independent of each other and are each equipped with an inflation / deflation port. The aforementioned zoned inflation / deflation head, neck, and shoulder support pad includes two working modes: Reclining working mode: The shoulder and back airbags and the reclining sub-airbag are in a pressurized state, and the flattening sub-airbag is in a depressurized state; the working surface of the shoulder and back airbag is a slope that is lower in the front and higher in the back, and the working surface of the reclining sub-airbag is a slope that is higher in the front and lower in the back; the working surfaces of the shoulder and back airbags, the working surface of the neck support pillow, and the working surface of the reclining sub-airbag together constitute the total working surface, which is high in the middle and gradually lowers towards the front and back sides; Flat working mode: The shoulder and back airbags, the rear tilt sub-airbags and the flat sub-airbags are all in a pressurized state; the working surface of the rear tilt sub-airbag is horizontal, and the total working surface is flat at the rear and gradually lowers towards the front.

[0008] This invention, through the coordinated use of the shoulder and back airbag, the backward tilting sub-airbag, and the flattening sub-airbag, creates a continuous support relationship in the occipital, posterior neck, and shoulder and back areas, enabling the patient's head to be adjusted to a basically horizontal or backward tilting position. This improves head and neck stability while meeting the positional requirements for DSA interventional diagnosis and treatment.

[0009] As a preferred embodiment of the present invention, the occipital airbag further includes a forward-tilting sub-airbag, which is connected below the flat sub-airbag. The forward-tilting sub-airbag and the flat sub-airbag are independent of each other, and the forward-tilting sub-airbag is provided with an inflation / deflation port. The zoned inflation and deflation head, neck, and shoulder fixing pad also includes a forward tilt working mode: the shoulder and back airbag, the backward tilt sub-airbag, the flat sub-airbag, and the forward tilt sub-airbag are all in an inflated state; the working surface of the backward tilt sub-airbag presents an inclined plane with a lower front and a higher rear, and the total working surface presents an inclined plane with a lower front and a higher rear.

[0010] In a preferred embodiment of the present invention, the upper front end of the rear-lying sub-airbag is connected to the rear neck support pillow.

[0011] As a preferred embodiment of the present invention, the shoulder and back airbag includes a plurality of shoulder and back sub-airbags connected sequentially from front to back. Each shoulder and back airbag is independent of each other and is respectively equipped with an inflation / deflation port to adjust its internal air pressure. When inflated, the working surface of each shoulder and back airbag along the head-to-foot direction is a slope that is lower in the front and higher in the back. When the internal air pressure of each shoulder and back airbag is the same, multiple working surfaces form a gradually downward slope. By adjusting the internal air pressure of each shoulder and back airbag, the tilt angle of the working surface of the shoulder and back airbag under pressure can be adjusted to adapt to patients with different body shapes.

[0012] As a preferred embodiment of the present invention, it further includes independent left cheek airbags and right cheek airbags, each of which is equipped with an independent inflation / deflation port; The left cheek airbag and the right cheek airbag are respectively connected to the left and right sides of the rear tilt airbag.

[0013] As a preferred embodiment of the present invention, it further includes a forehead fixation strap and a chin fixation strap; The two ends of the forehead fixing strap are fixedly connected to the working surface of the backward tilting sub-airbag or the two cheek airbags; The two ends of the chin fixation strap are fixedly connected to the working surface of the rear-tilting sub-airbag or to the two cheek airbags.

[0014] As a preferred embodiment of the present invention, it further includes a occipital fixation strap and a shoulder and back fixation strap; At least two headrest fixing straps are provided, respectively located on the left and right sides of the reclining sub-airbag, for fixing the two sides of the reclining sub-airbag to the two sides of the bed frame; At least two shoulder and back fixation straps are provided, respectively located on the left and right sides of the shoulder and back airbag, for fixing the sides of the shoulder and back airbag to the sides of the bed.

[0015] As a preferred embodiment of the present invention, the airbag, fixation device and connector located in the main imaging area of ​​DSA are made of non-metallic transparent material with low X-ray attenuation; the airbag located in the patient's head area is made of flexible transparent material.

[0016] As a preferred embodiment of the present invention, each airbag has a flexible skin-friendly contact layer on the working surface that comes into contact with the patient's skin; the flexible skin-friendly contact layer may be a granular fleece layer, a micro-fleece layer, a removable cleaning sleeve, or a disposable protective sleeve, so as to take into account both patient comfort and clinical cleaning and disinfection needs.

[0017] The second aspect of the present invention provides a method for adjusting the angle of a patient's head. Using the above-mentioned DSA partitioned inflation and deflation head, neck and shoulder fixing pad, when the patient's head needs to be tilted back, the shoulder and back airbag and the tilting sub-airbag are inflated, so that the flat sub-airbag is kept in a depressurized state, and the total working surface is in the shape of being high in the middle and gradually lower towards the front and back sides. When the patient needs to lie flat, inflate the shoulder and back airbag, the backward tilting sub-airbag, and the flattening sub-airbag so that the working surface of the backward tilting sub-airbag is basically horizontal and the total working surface is basically flat on the back and gradually lowered forward on the front. When the patient's head needs to be tilted forward, the shoulder and back airbags, the backward tilting sub-airbags, the leveling sub-airbags and the forward tilting sub-airbags are inflated to make the total working surface present a gradually sloping surface that is lower in the front and higher in the back. When it is necessary for the patient to turn their head to one side, depressurize the cheek airbag on the side corresponding to the intended direction of head turn, so that the patient's head turns to that side. Attached Figure Description

[0018] Figure 1 A schematic diagram of the DSA (Digital Subtraction Angiography) zoned inflation / deflation head, neck, and shoulder support pad. Figure 2 A schematic diagram of the shape of the occipital airbag when in the reclining working mode; Figure 3 A schematic diagram of the shape of the occipital airbag in the flat working mode; Figure 4 A schematic diagram of the shape of the posterior occipital airbag when in the forward-leaning working mode; Figure 5 This is a schematic diagram of an independent inflation / deflation assembly.

[0019] Explanation of the labels in the diagram: 100. Backrest airbag; 110. Backward tilt airbag; 120. Flattening airbag; 130. Forward tilt airbag; 200. Shoulder and back airbag; 210. Shoulder and back airbag; 300. Neck support pillow; 410. Left cheek airbag; 420. Right cheek airbag; 510. Forehead restraint strap; 520. Jaw restraint strap; 610. Occipital support strap; 620. Shoulder and back support strap; 700. Independent inflation / deflation assembly; 710. Airbag fixing nozzle; 720. Short connecting hose; 730. Self-sealing quick-connect female connector; 740. Quick-connect male connector; 750. Hand-crushing ball connector; 760. One-way valve; 770. Deflator valve; 800, DSA bed. Detailed Implementation

[0020] To further understand the content of this invention, a detailed description of the invention is provided in conjunction with the accompanying drawings and embodiments. In this invention, "front side" refers to the side where the shoulder and back airbag 200 is located (the side where the patient's head is located), and "back side" refers to the side where the occipital airbag 100 is located (the side where the patient's feet are located).

[0021] Existing inflatable pillows mainly achieve local elevation or lateral support by changing the height of different air bladders. They lack a coordinated support relationship between the back of the head, the back of the neck, and the shoulder and back areas. It is difficult to form a continuous head, neck, and shoulder support working surface by inflating and deflating in sections. Therefore, it is difficult to achieve continuous adjustment of the patient's body position such as tilting the head back, lying flat, and tilting forward while maintaining neck support and head stability. It is also difficult to fully meet the needs of body position adjustment during DSA interventional diagnosis and treatment.

[0022] Example 1 like Figures 1-3 As shown, this embodiment provides a zoned inflation / deflation head, neck, and shoulder support pad for DSA, which is placed on a DSA bed 800 during use. The support pad includes a occipital airbag 100 and a shoulder and back airbag 200, each airbag being equipped with an inflation / deflation port, allowing the occipital airbag 100 and the shoulder and back airbag 200 to be inflated and deflated independently.

[0023] The support pad also includes a cervical support pillow 300 for supporting the back of the patient's neck, which is positioned between the shoulder and back airbag 200 and the occipital airbag 100. Preferably, the cervical support pillow 300 is a non-inflatable flat support structure that does not wrap around the front of the neck.

[0024] The occipital airbag 100 includes a reclining sub-airbag 110 and a leveling sub-airbag 120. The leveling sub-airbag 120 is connected below the reclining sub-airbag 110, meaning the leveling sub-airbag 120 and the reclining sub-airbag 110 are integrated. Preferably, the upper surface of the leveling sub-airbag 120 and the lower surface of the reclining sub-airbag 110 are bonded together. The reclining sub-airbag 110 and the leveling sub-airbag 120 are independent of each other and each is equipped with an inflation / deflation port, allowing the reclining sub-airbag 110 and the leveling sub-airbag 120 to be inflated and deflated independently.

[0025] The zoned inflation / deflation head, neck, and shoulder support pad includes two working modes.

[0026] Backward tilt working mode: like Figure 2As shown, the shoulder and back airbag 200 and the rearward airbag 110 are inflated, so that the two airbags are in a pressurized state; the flat airbag 120 is not inflated and is in a depressurized state.

[0027] After inflation, the shoulder and back airbag 200 has a sloping surface that is lower in the front and higher in the back. Preferably, the inflated shoulder and back airbag 200 has a wedge-shaped structure, with its longitudinal section along the patient's head-to-foot direction approximately forming a right-angled triangle, with the side closer to the cervical support 300 being higher. The sloping surface constitutes the working surface. After inflation, the reclining sub-airbag 110 has a sloping surface that is higher in the front and lower in the back. Preferably, the inflated reclining sub-airbag 110 has a wedge-shaped structure, with its longitudinal section along the patient's head-to-foot direction approximately forming a right-angled triangle, with the side closer to the cervical support 300 being higher. The sloping surface constitutes the working surface. Since the flat sub-airbag 120 is depressurized and located below the reclining sub-airbag 110, it will not significantly affect the reclining working mode. Furthermore, the deflated airbag does not directly form a pressure-bearing working surface for the patient and does not come into contact with the patient's skin, which helps improve comfort.

[0028] The working surfaces of the shoulder and back airbag 200, the cervical support pillow 300, and the tilting sub-airbag 110 together constitute the overall working surface. In the tilting working mode, the overall working surface is high in the middle and gradually decreases towards the front and back sides; the patient's neck is supported by the cervical support pillow 300, the back of the patient's head is supported by the tilting sub-airbag 110 which is high in the front and low in the back, and the patient's shoulders and back are supported by the shoulder and back airbag 200, which conforms to ergonomics and puts the patient in a more comfortable position.

[0029] Leveling working mode: like Figure 3 As shown, the shoulder and back airbag 200, the rearward airbag 110, and the flat airbag 120 are inflated so that all three airbags are in a pressurized state.

[0030] The difference from the aforementioned tilting working mode is that after the flattening sub-airbag 120 is inflated, it lifts the tilting sub-airbag 110 connected above it upwards and causes the tilting sub-airbag 110 to rotate forward at a certain angle (which can be considered as rotating clockwise around the upper front side of the tilting sub-airbag 110), so that the working surface of the tilting sub-airbag 110 is basically horizontal; the basically horizontal state allows for a slight height difference suitable for the flexible airbag to withstand pressure deformation. At this time, the total working surface has a shape with a basically flat rear side and a gradually lower front side. Preferably, after both the tilting sub-airbag 110 and the flattening sub-airbag 120 are inflated, their longitudinal cross-sections along the front-rear direction are approximately rectangular.

[0031] In summary, the present invention, through the coordinated use of the shoulder and back airbag 200, the backward tilting sub-airbag 110, and the flattening sub-airbag 120, forms a continuous support relationship in the occipital, posterior neck, and shoulder and back areas, enabling the patient's head to be adjusted to a basically horizontal or backward tilted position, fully adapting to the needs of body position adjustment during DSA interventional diagnosis and treatment, and improving the stability of the head and neck during DSA interventional diagnosis and treatment.

[0032] In one embodiment, the upper front end of the tilting sub-airbag 110 is connected to the cervical support pillow 300. This ensures a tight connection between the tilting sub-airbag 110 and the cervical support pillow 300, maintaining a continuous working surface. Furthermore, based on this connection, when the leveling sub-airbag 120 and the forward tilting sub-airbag 130 are inflated, the tilting sub-airbag 110 can naturally rotate clockwise forward around the connection point. Preferably, since the airbag is a flexible structure, rigid hinge structures such as pivots are unnecessary. Flexible non-metallic connection structures such as zippers and Velcro can be used to reduce the impact on DSA imaging and improve safety.

[0033] The rear side of the shoulder and back airbag 200 is connected to the front side of the neck support pillow 300 by a structure such as Velcro or zipper.

[0034] In one embodiment, the shoulder and back airbag 200 includes a plurality of shoulder and back sub-airbags 210 connected sequentially from front to back. Each shoulder and back airbag 210 is independent of each other and is equipped with an inflation / deflation port to adjust its internal air pressure. When inflated, the working surface of each shoulder and back airbag 210 along the head-to-foot direction is a slope that is lower in the front and higher in the back. Preferably, when the internal air pressure of each shoulder and back airbag 210 is the same, the multiple working surfaces form a slope that gradually decreases in the front; more preferably, when the internal air pressure of each shoulder and back airbag 210 is the same, the multiple working surfaces are basically located within the same slope.

[0035] By adjusting the air pressure of multiple shoulder and back airbags 210, the tilt angle of the working surface of the shoulder and back airbag 200 can be adjusted to accommodate patients of various body shapes. It should be noted that when the shoulder and back airbag 200 is not pressurized, the same shoulder and back airbag 210 may be fully inflated at both high and low air pressures. However, when a patient's shoulder and back press against the shoulder and back airbag 210, the low-pressure airbag 210 will sink more than the high-pressure airbag 210. Therefore, adjusting the air pressure of multiple shoulder and back airbags 210 can achieve the purpose of adjusting the tilt angle of the working surface of the shoulder and back airbag 200. This adjusted tilt angle is the tilt angle of the shoulder and back airbag 200 after it is pressurized.

[0036] Example 2 Based on the above embodiments, the occipital airbag 100 further includes a forward-tilting sub-airbag 130, which is connected below the flattening sub-airbag 120, i.e., the forward-tilting sub-airbag 130 and the flattening sub-airbag 120 are integrated; preferably, the upper surface of the forward-tilting sub-airbag 130 and the lower surface of the flattening sub-airbag 120 are bonded to each other. The forward-tilting sub-airbag 130 and the flattening sub-airbag 120 are independent of each other, and the forward-tilting sub-airbag 130 is provided with an inflation / deflation port, so that the forward-tilting sub-airbag 130 can be inflated and deflated independently.

[0037] When the zonal inflation / deflation head, neck, and shoulder fixation pad is in the backward tilting or flat working mode, the forward tilting sub-airbags 130 are in a depressurized state. The deflated forward tilting sub-airbags 130 are extremely thin and located at the bottom, not in contact with the patient's skin, thus ensuring patient comfort.

[0038] Based on the design of the forward-leaning sub-airbag 130, the zoned inflation / deflation head, neck, and shoulder support pad also includes a forward-leaning working mode: like Figure 4 As shown, in the forward tilt working mode, the shoulder and back airbag 200, the backward tilt sub-airbag 110, the leveling sub-airbag 120 and the forward tilt sub-airbag 130 are all in a pressurized state.

[0039] The difference from the above-mentioned flat working mode is that after the forward tilting sub-airbag 130 is inflated, it will push the backward tilting sub-airbag 110 and the flattening sub-airbag 120 located above it upward, and make the backward tilting sub-airbag 110 and the flattening sub-airbag 120 further rotate forward at a certain angle (which can be regarded as rotating clockwise around the front upper end of the backward tilting sub-airbag 110), so that the working surface of the backward tilting sub-airbag 110 presents a slope that is lower in the front and higher in the back; at this time, the total working surface (the working surfaces of the backward tilting sub-airbag 110, the cervical support pillow 300 and the shoulder and back airbag 200) presents a slope that is lower in the front and higher in the back (the working surface of the cervical support pillow 300 has a local bulge).

[0040] In the forward-leaning working mode, it can provide forward-leaning support for the patient's head, neck, shoulders and back, so that the head, neck, shoulders and back are basically on the same inclined plane, improving the patient's comfort.

[0041] It should be noted that in the forward-tilting working mode, although the working surface of the cervical support pillow 300 is not adjustable, so the total working surface is not a flat slope, in practice, because the thickness of the cervical support pillow 300 is relatively small, and because the human neck has a natural curvature, when the head is lifted forward by the backward-tilting sub-airbag 110, the neck will naturally and gradually disengage from the cervical support pillow 300. Referring to common ergonomic chairs, there is no support for the neck position, so it will not reduce the patient's comfort.

[0042] Example 3 Based on the above embodiments, such as Figure 1As shown, this embodiment also includes independent left cheek airbags 410 and right cheek airbags 420. Both the left cheek airbag 410 and right cheek airbag 420 are equipped with independent inflation / deflation ports, allowing each cheek airbag to inflate and deflate independently. The left cheek airbag 410 and right cheek airbag 420 are respectively connected to the left and right sides of the tilting sub-airbag 110, enabling both cheek airbags to move synchronously with the tilting sub-airbag 110. Regardless of whether in tilting, leveling, or forward-leaning modes, the two cheek airbags always maintain the corresponding position on the outer side of the patient's cheek. Preferably, the two cheek airbags are connected to the tilting sub-airbag 110 via Velcro, zippers, or heat-sealed threads. By adjusting the inflation level of the cheek airbags, the patient's head can be flexibly limited on both sides. When it is necessary for the patient to turn their head to one side, clear their mouth, or handle vomiting, the air in the corresponding cheek airbag can be quickly released, allowing the head to naturally turn to that side.

[0043] Example 4 Based on the above embodiments, such as Figure 1 As shown, this embodiment also includes a forehead fixation strap 510 and a chin fixation strap 520. The tightness of the two fixation straps is adjustable, and the width is preferably 35-50mm. The forehead fixation strap 510 passes horizontally across the patient's forehead, and both ends of the forehead fixation strap 510 are fixedly connected to the working surface of the tilting sub-airbag 110 or the two cheek airbags, and the tightness is adjustable. The chin fixation strap 520 supports the patient's chin, and the tightness is adjustable. It does not wrap around the neck or compress the larynx. Both ends of the chin fixation strap 520 are fixedly connected to the working surface of the tilting sub-airbag 110 or the two cheek airbags. Preferably, the tilting sub-airbag 110 or the cheek airbags are provided with an outer reinforcement part to reinforce the connection between the two fixation straps.

[0044] In one embodiment, the device further includes a headrest securing strap 610 and a shoulder and back securing strap 620. At least two headrest securing straps 610 are provided, one securing the left side of the reclining sub-airbag 110 to the left side of the DSA bed 800 board, and the other securing the right side of the reclining sub-airbag 110 to the right side of the DSA bed 800 board. At least two shoulder and back securing straps 620 are provided, one securing the left side of the shoulder and back airbag 200 to the left side of the DSA bed 800 board, and the other securing the right side of the shoulder and back airbag 200 to the right side of the DSA bed 800 board.

[0045] The occipital fixation strap 610 and the shoulder and back fixation strap 620 bypass the DSA bed 800 board and fix the airbag itself, without directly binding the patient's body. This reduces the risk of the pad slipping and reduces additional restraint on the patient's chest, abdomen, or limbs. The fixation strap outlets are located on the side of the bed to avoid pressing under the patient's skin and to minimize interference with C-arm rotation, bed board movement, and placement of catheters and monitoring lines.

[0046] Example 5 Based on the above embodiments, in this embodiment, the airbags located in the patient's head area are all made of flexible transparent material, that is, the backward tilting sub-airbag 110, the flattening sub-airbag 120, the forward tilting sub-airbag 130, and the two cheek sub-airbags are all made of flexible transparent material to reduce the impact on DSA fluoroscopy; preferably, medical grade transparent or semi-transparent TPU film, PU film, or equivalent flexible transparent material is used.

[0047] Each airbag can be fitted with a flexible, skin-friendly contact layer on the working surface that comes into contact with the patient's skin to prevent the airbag membrane from directly rubbing against the patient's skin and to improve comfort. The flexible, skin-friendly contact layer can be made of a granular fleece layer, a microfiber fabric layer, or a removable washable cover or a disposable protective cover, to facilitate quick replacement after clinical cleaning, disinfection, and contamination.

[0048] The main body material, airbag membrane layer, contact surface material, fixing parts and connectors located in the main imaging area of ​​DSA are preferably non-metallic materials with low X-ray attenuation; the fixing strap buckle can adopt a plastic quick-opening structure such as POM, nylon or large area Velcro, and try to avoid metal buckles, metal air nozzles or thick hard high-density materials from entering the main imaging area, so as to improve the compatibility of the fixing pad with DSA fluoroscopy and C-arm operation environment from the structure.

[0049] Example 6 Based on the above embodiments, such as Figure 5 As shown, this embodiment provides an independent inflation / deflation assembly 700 applicable to each of the above-mentioned airbags. Each independent inflation / deflation assembly 700 includes an airbag fixing nozzle 710 communicating with the corresponding airbag, a short connecting hose 720, a self-sealing quick-connect female connector 730, and a detachably connected quick-connect male connector 740, as well as a hand-operated inflation assembly. The hand-operated inflation assembly includes a hand-operated ball 750, a one-way valve 760 disposed in the inflation passage to restrict the reverse flow of gas to the airbag, and a deflation valve 770 communicating with the air passage to selectively release gas from the corresponding airbag. The airbag fixing nozzle 710 is welded to the outer edge of the corresponding airbag; the short connecting hose 720 can be 15-25cm in length; the self-sealing quick-connect female connector 730 is fixed to the edge of the pad; and the quick-connect male connector 740 is disposed at the end of the hand-operated inflation assembly.

[0050] When the quick-connect male connector 740 is inserted into the self-sealing quick-connect female connector 730, the operator can inflate the corresponding airbag by squeezing the hand-operated inflator 750. A one-way valve 760 directs gas into the airbag in the inflation direction and prevents backflow. Once the desired support level is reached, the hand-operated inflator assembly can be removed from the self-sealing quick-connect female connector 730, which automatically closes, keeping the airbag fully inflated. When it is necessary to lower the support height or release the limit, the deflation valve 770 is opened to deflate the corresponding airbag quickly or slowly. Preferably, the independent inflation / deflation assembly 700 may also be equipped with at least one of a pressure limiting valve, a pressure indicator, or a pressure scale to limit over-inflation of the airbag and facilitate operator observation or control of the inflation level.

[0051] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A DSA-compatible partitioned inflation / deflation head, neck, and shoulder support pad, comprising a occipital airbag (100) and a shoulder and back airbag (200), each airbag being equipped with an inflation / deflation port; Its features are: It also includes a cervical support pillow (300) for supporting the back of the patient's neck, the cervical support pillow (300) being disposed between the shoulder and back airbag (200) and the occipital airbag (100); The occipital airbag (100) includes a backward tilting sub-airbag (110) and a flattening sub-airbag (120). The flattening sub-airbag (120) is connected below the backward tilting sub-airbag (110). The backward tilting sub-airbag (110) and the flattening sub-airbag (120) are independent of each other and are both equipped with inflation / deflation ports. The zoned inflation / deflation head, neck, and shoulder support pad includes two working modes; Backward tilt working mode: The shoulder and back airbag (200) and the backward tilt sub-airbag (110) are in a pressurized state, and the flat sub-airbag (120) is in a depressurized state; the working surface of the shoulder and back airbag (200) is a slope that is lower in the front and higher in the back, and the working surface of the backward tilt sub-airbag (110) is a slope that is higher in the front and lower in the back; the working surface of the shoulder and back airbag (200), the working surface of the neck support pillow (300) and the working surface of the backward tilt sub-airbag (110) together constitute the total working surface, which is high in the middle and gradually lower towards the front and back sides; Flat working mode: The shoulder and back airbag (200), the backward tilting sub-airbag (110) and the flattening sub-airbag (120) are all in a pressurized state; the working surface of the backward tilting sub-airbag (110) is in a horizontal state, and the total working surface is flat on the rear side and gradually lower on the front side.

2. The DSA-compatible partitioned inflation / deflation head, neck, and shoulder support pad according to claim 1, characterized in that: The upper front end of the rear-lying sub-airbag (110) is connected to the rear neck support pillow (300).

3. The DSA-compatible partitioned inflation / deflation head, neck, and shoulder support pad according to claim 1, characterized in that: The shoulder and back airbag (200) includes a plurality of shoulder and back sub-airbags (210) connected sequentially from front to back. Each shoulder and back sub-airbag (210) is independent of each other and is equipped with an inflation / deflation port to adjust its internal air pressure. When inflated, the working surface of each shoulder and back airbag (210) is a sloping surface with a lower front and a higher back. When the internal air pressure of each shoulder and back airbag (210) is the same, multiple working surfaces form a gradually downward slope; by adjusting the internal air pressure of each shoulder and back airbag (210) respectively, the tilt angle of the working surface of the shoulder and back airbag (200) under pressure can be adjusted.

4. The DSA-compatible partitioned inflation / deflation head, neck, and shoulder support pad according to claim 1, characterized in that: The occipital airbag (100) also includes a forward-tilting sub-airbag (130), which is connected below the flat sub-airbag (120). The forward-tilting sub-airbag (130) and the flat sub-airbag (120) are independent of each other, and the forward-tilting sub-airbag (130) is provided with an inflation / deflation port. The zoned inflation and deflation head, neck, and shoulder fixing pad also includes a forward tilt working mode: the shoulder and back airbag (200), the backward tilt sub-airbag (110), the flat sub-airbag (120), and the forward tilt sub-airbag (130) are all in a pressurized state; the working surface of the backward tilt sub-airbag (110) is a slope that is lower in the front and higher in the back, and the total working surface is a slope that is lower in the front and higher in the back.

5. The DSA partitioned inflation / deflation head, neck, and shoulder fixation pad according to claim 4, characterized in that: It also includes independent left cheek airbag (410) and right cheek airbag (420), each of which is equipped with an independent inflation / deflation port; The left cheek airbag (410) and the right cheek airbag (420) are respectively connected to the left and right sides of the rear tilt airbag (110).

6. The DSA partitioned inflation / deflation head, neck, and shoulder support pad according to claim 5, characterized in that: It also includes a forehead fixation band (510) and a mandibular fixation band (520); The two ends of the forehead fixing strap (510) are fixedly connected to the working surface of the rear tilt sub-airbag (110) or to the two cheek airbags; The two ends of the chin fixation strap (520) are fixedly connected to the working surface of the rear-tilting sub-airbag (110) or to the two cheek airbags.

7. The DSA-compatible partitioned inflation / deflation head, neck, and shoulder support pad according to claim 1, characterized in that: It also includes a occipital fixation strap (610) and a shoulder and back fixation strap (620); At least two pillow fixing straps (610) are provided, respectively located on the left and right sides of the reclining sub-airbag (110), for fixing the two sides of the reclining sub-airbag (110) to the two sides of the bed frame. At least two shoulder and back fixation straps (620) are provided, respectively located on the left and right sides of the shoulder and back airbag (200), for fixing the two sides of the shoulder and back airbag (200) to the two sides of the bed.

8. The DSA partitioned inflation / deflation head, neck, and shoulder support pad according to claim 1, characterized in that: The airbags, fixtures, and connectors located in the main imaging area of ​​DSA are made of non-metallic, transparent materials with low X-ray attenuation. The airbag located in the patient's head area is made of flexible, transparent material.

9. The DSA-compatible partitioned inflation / deflation head, neck, and shoulder support pad according to claim 1, characterized in that: Each airbag has a flexible, skin-friendly contact layer on the working surface that comes into contact with the patient's skin; The flexible, skin-friendly contact layer is one or more of the following: a granular fleece layer, a micro-fleece layer, a removable washable cover, or a disposable protective cover.

10. A method for adjusting the angle of a patient's head, using the DSA-applied zoned inflation / deflation head, neck, and shoulder fixation pad as described in claim 5, characterized in that: When the patient's head needs to be tilted back, the shoulder and back airbag (200) and the tilting sub-airbag (110) are inflated, and the flat sub-airbag (120) is kept in a depressurized state, so that the total working surface is high in the middle and gradually lower to the front and back sides. When the patient needs to lie flat, inflate the shoulder and back airbag (200), the backward tilting sub-airbag (110), and the flattening sub-airbag (120) so that the working surface of the backward tilting sub-airbag (110) is basically horizontal and the total working surface is basically flat on the rear side and gradually lowered on the front side. When the patient's head needs to be tilted forward, the shoulder and back airbag (200), the backward tilt sub-airbag (110), the flattening sub-airbag (120) and the forward tilt sub-airbag (130) are inflated so that the total working surface presents a gradually changing slope with the front lower and the back higher. When it is necessary for the patient to turn their head to one side, depressurize the cheek airbag on the side corresponding to the intended direction of head turn, so that the patient's head turns to that side.

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