Mandibular bracket for anesthesiology department

Abstract

The invention belongs to the technical field of medical instruments, and particularly discloses a lower jaw bracket for the anesthesia department, which comprises a base body, an adjusting part, a supporting part, a posture acquisition part, a sensing part and a processing part, and is characterized in that the processing part is connected with the posture acquisition part, the sensing part, the adjusting part and the supporting part and is used for receiving head posture image information and analyzing to generate an adjusting instruction; the adjusting instruction comprises an inflation and deflation instruction of the air bag and a telescopic instruction of the telescopic supporting end, the inflation and deflation instruction is used for adjusting the head hypsokinesis angle of the patient, and the telescopic instruction is used for adjusting the lower jaw posture of the patient. According to the invention, manual adjustment of the lower jaw bracket by an anesthetist is effectively avoided, accurate control can be realized, the medical care burden is effectively reduced, the concepts of comfortable medical treatment and accelerated rehabilitation are met, and the intelligent sensing and accurate control technology represents innovation and breakthrough of anesthesia equipment towards high efficiency and safety.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a mandibular bracket for anesthesiology. Background Art

[0002] During general anesthesia surgery, the anesthetic drugs cause the throat muscles to relax, causing the tongue base and mandible to lose support and fall backward. This can easily cause the tongue to fall backward, blocking the airway and causing upper airway obstruction. This obstruction can directly lead to ventilation problems, resulting in critical conditions such as decreased blood oxygen saturation and carbon dioxide retention. In severe cases, it can cause asphyxiation and endanger life. Therefore, maintaining airway patency is one of the core tasks of anesthesia management during general anesthesia surgery, and the mandibular thrust is the most direct means of preventing tongue fall backward.

[0003] The traditional technical means is manual mandibular support, that is, the anesthesiologist places his hands on both sides of the patient's head, and uses the thumb and other fingers to pull the mandible upward and forward to drive the tongue forward and expand the pharyngeal cavity volume. However, this method has the disadvantages that the anesthesiologist may easily fatigue his hands and operate unsteadily due to the long-term fixed posture during long-term surgery, and the manual operation occupies both hands, making it difficult to coordinate with airway operations in emergencies. Therefore, the mandibular support operation is currently mostly achieved clinically with the help of a mandibular support. However, the existing mandibular support only applies force to the patient's mandibular position to lift the mandible. Moreover, the anesthesiologist still needs to rely on experience to manually operate the mandibular support, which makes it impossible to effectively grasp the actual pressure of the mandibular support on the mandibular area. The anesthesiologist can only make judgments based on the patient's body position and experience. That is, in order to effectively maintain the patient's airway patency, the anesthesiologist will use "the mandibular support lifts the patient's mandible and puts the patient in a backward position" as the judgment standard, so as to effectively relieve the obstruction of the airway caused by tongue prolapse. However, since the anesthesiologist manually operates the mandibular support based on experience, it is very easy for the pressure to be too low resulting in poor effect, or the pressure to be too high causing discomfort to the patient.

[0004] For example, Chinese patent publication CN221617302U discloses a mandibular support for anesthesiology. During use, two third extension plates drive two splints to move to either side of the patient's face, where they clamp the patient's face. In practice, anesthesiologists rely on their experience to manually operate the mandibular support. This results in the two splints applying insufficient pressure, making it impossible to maintain the patient's reclined position while lifting the mandible. Excessive pressure, while still maintaining the reclined position while lifting the mandible, can easily lead to over-clamping. This excessive pressure can cause severe discomfort to the patient, potentially leading to chronic muscle damage, stiffness, and even scar formation. For example, Chinese patent document CN215350358U discloses a mandibular support for anesthesiology. When in use, the support plate is used to apply force to the mandible. When anesthesiologists manually operate the mandibular support based on their experience, the support plate may apply too little force to maintain the reclining position, while too much force may lead to over-clamping, causing discomfort to the patient, chronic muscle damage, and even scarring. Summary of the Invention

[0005] In view of the above problems, the present invention aims to provide a mandibular support for anesthesiology.

[0006] The technical solution of the present invention is: a mandibular support for anesthesiology, comprising a base, an adjusting part, a supporting part, a posture collecting part, a sensing part and a processing part.

[0007] The surface of the base has a groove. The adjustment part is arranged in the groove, and has multiple airbags and an inflation and deflation mechanism inside. Each of the airbags is connected to the inflation and deflation mechanism, and the inflation and deflation mechanism is connected to the airbag to adjust the amount of air inside the airbag. The support part includes two groups of support frame groups, and the support frame groups are respectively arranged on the base, located on both sides of the adjustment part. Each group of support parts has a telescopic support end, and the telescopic support end is used to contact the patient's lower jaw through telescoping to lift and support the lower jaw. The posture acquisition part is used to collect the patient's head posture image information, and the head posture image information includes the lower jaw posture information and the head tilt angle. The sensing part includes a first sensing group and a second sensing group. The first sensing group is used to collect pressure information between the airbag and the patient's head; there are two second sensing groups, and each second sensing group corresponds to two telescopic support ends one by one, and is used to collect pressure information between the telescopic support end and the lower jaw. The processing unit is connected to the posture acquisition unit, the sensing unit, the adjustment unit, and the support unit, and is used to receive head posture image information and analyze and generate adjustment instructions. The adjustment instructions include inflation and deflation instructions for the airbag and extension and retraction instructions for the retractable support end. The inflation and deflation instructions are used to adjust the patient's head tilt angle, and the extension and retraction instructions are used to adjust the patient's mandibular posture.

[0008] The multiple independent airbags within the adjustment section are linked by an inflation and deflation mechanism to conform to the patient's head curve, forming a variable support surface within the base's groove. Adjusting the air volume dynamically changes the head's recline angle, resolving the issue of a single, fixed angle being insufficiently adaptable to different patients. The multiple airbags within the adjustment section can be independently inflated and deflated, creating a personalized support surface within the base's groove based on the patient's head contour, allowing for adaptation to patients of varying body shapes.

[0009] The two groups of support frames in the support part are symmetrically distributed on both sides of the adjustment part. The telescopic support ends of each group of support frames can be retracted independently or collaboratively, and can be fine-tuned according to mandibular asymmetry or unilateral support requirements to improve the stability and symmetry of mandibular lifting.

[0010] Furthermore, since the adjustment unit is embedded in the groove of the base, and the support frame assembly of the support unit is symmetrically arranged on both sides of the groove, the overall structure is compact and does not occupy additional space around the operating table. Anesthesiologists can conveniently perform operations such as tracheal intubation and mask ventilation in an unobstructed area around the base, avoiding interference with the operating field of view by traditional brackets. There is no need for frequent manual adjustments to the position of the patient's head and mandible. The processing unit automatically maintains the airbag volume and the telescopic state of the telescopic support end through real-time data feedback from the posture acquisition unit and the sensing unit, freeing up the energy of medical staff. This is especially suitable for scenarios with tight staffing or complex surgeries.

[0011] Furthermore, there are M×N airbags distributed in an M×N grid matrix.

[0012] Multi-dimensional deformability: The grid matrix divides the airbags into independent cells (M rows x N columns), enabling differentiated inflation and deflation within the two-dimensional plane based on the three-dimensional curved features of the patient's head. For example, if a patient's occipital region is bulging to the left, the processing unit can inflate the left rear airbag more and deflate the right rear airbag appropriately, creating a support slope with a higher left and a lower right, correcting head tilt. For pediatric patients, the support area can be contracted by reducing the inflation of the edge airbags to accommodate smaller heads.

[0013] It breaks through the limitation of traditional single airbag or linear arrangement structure that can only adjust the "front and back height", realizes dynamic matching of left and right and front and back bidirectional curvature, and enables the adjustment part to form a "personalized support matrix" in the groove of the base that fits the patient's head perfectly, increasing the contact area while reducing local pressure.

[0014] Independent Zoned Pressure Control: Each airbag unit independently adjusts its air volume through an inflation / deflation mechanism. Combined with the pressure sensor surface of the first sensing group, this achieves regionalized closed-loop pressure control. For example, the airbags in the sensitive temporal area can maintain lower pressure, while the airbags in the primary support area of ​​the occipital region can maintain higher inflation, ensuring head stability while preventing pressure damage to sensitive areas.

[0015] Compound angle adjustment capability: The grid matrix structure enables the adjustment unit to simultaneously adjust the head's backward tilt angle and fine-tune the left and right tilt / rotation angles through the air volume difference of airbags in different areas.

[0016] Tilt adjustment: This is achieved by adjusting the inflation volume difference between the front and rear airbags. When the front airbags are deflated and the rear airbags are inflated, the head tilts back. Roll / rotation adjustment: This is achieved by adjusting the inflation volume difference between the left and right airbags. When the left airbag is inflated more than the right, the head tilts to the right, correcting head deviation caused by muscle relaxation during anesthesia.

[0017] Furthermore, the inflation and deflation mechanism is used to adjust the air volume inside the M×N airbags respectively, so as to adjust the patient's head tilt angle to 9° to 15°.

[0018] The ideal recline angle range for the "flower-sniffing position" during anesthesia is 9° to 15°, which can align the oral, pharyngeal, and larynx axes, significantly improving the laryngoscopic field of view. The inflation and deflation mechanism dynamically locks the angle at the optimal individual value based on individual patient anatomical characteristics, such as the cervical spine curvature and mandibular length, by adjusting the air volume difference between the anterior and posterior airbags. This avoids the inadequate fit of traditional fixed-angle brackets for some patients.

[0019] While maintaining the overall backward leaning angle, the inflation and deflation mechanism can fine-tune the air volume of the left and right airbags to correct lateral deviation or rotation of the head, so that the axis of the glottal fissure is aligned with the center of the laryngoscope's field of view. It is especially suitable for asymmetric posture adjustment of patients with limited cervical spine movement.

[0020] Within the 9° to 15° angle range, the mandibular support can be used in conjunction with laryngeal mask airways, video laryngoscopes, fiberoptic bronchoscopes, and other devices. For example, when using a video laryngoscope, an angle of 10° to 12° optimizes the camera's field of view; when using a laryngeal mask airway, an angle of 13° to 15° increases pharyngeal space and improves the success rate of insertion.

[0021] Furthermore, the first sensing group includes M×N first pressure sensing elements, which are distributed one-to-one on the surface of the airbag and are used to collect pressure information between each airbag and the patient's head.

[0022] The first pressure sensing element on the surface of each airbag can collect the contact pressure of the area in real time, forming an M×N pressure matrix heat map, which intuitively reflects the contact status between the head and the bracket.

[0023] For example, if a patient's occipital tilt shifts to the left, the pressure sensor on the left rear-deflation airbag increases. The processing unit immediately deflates the ipsilateral airbag and inflates the contralateral airbag, correcting the pressure distribution within one second and preventing localized high pressure from exceeding the tissue tolerance threshold. Compared to traditional single-point pressure monitoring, this system overcomes the blind spot of "normal overall pressure but localized overload," significantly reducing the risk of missed pressure ulcer detection.

[0024] The inflation and deflation instructions for each airbag are directly linked to the data from its surface pressure sensor, forming an independent feedback loop. For example, when the pressure in a particular airbag is less than 10 mmHg, the processing unit inflates it by 5%. When the pressure exceeds 20 mmHg, it deflates it by 3%, until the pressure returns to the safe range of 10-18 mmHg. Compared to the traditional "global unified adjustment" model, this mechanism achieves the ideal support state of "maximizing contact area and minimizing local pressure."

[0025] High-frequency response to subtle changes in the head: The pressure sensor sampling frequency can reach 100Hz, capable of capturing submillimeter displacements of the patient's head caused by respiratory fluctuations, muscle tremors, and other factors. For example, during spontaneous breathing, chest fluctuations may cause the head to surge forward by 0.5cm, resulting in a sudden increase of 5mmHg in the pressure of the anterior airbag. The processing unit compensates by deflating the airbag in real time, maintaining a fluctuation of the head's backward tilt angle ≤±0.3°. During the onset of muscle relaxants, mandibular relaxation may cause the head to slide backward, causing the pressure of the posterior airbag to drop by 3mmHg. The processing unit inflates the airbag synchronously to maintain a stable angle. Compared to traditional low-frequency monitoring, such as 5Hz, the response speed is increased by 20 times, avoiding the deterioration of airway exposure quality due to delayed adjustment.

[0026] Preventing injuries caused by unconscious movement: If the patient twists his head, the corresponding edge airbag pressure sensor can promptly detect the sudden increase in unilateral pressure. The processing unit immediately triggers the "anti-squeeze protection program", reducing the inflation volume of the airbag on that side within 0.3 seconds, while maintaining the overall angle by inflating the airbag on the opposite side.

[0027] Refined support for pediatric patients: The area of ​​a child's head is approximately 1 / 3 to 1 / 2 of that of an adult's. M×N pressure sensors can accurately identify the covered area of ​​the head. For example, if only the middle 3×3 airbags have pressure data, the processing unit will automatically turn off the airbag inflation and deflation functions in the untouched area to avoid discomfort caused by accidental contact of redundant airbags. At the same time, the pressure standard deviation of the effective support area is controlled within ±2mmHg, improving the tolerance of pediatric patients.

[0028] Anesthesia pressure data archiving: The processing unit can store M×N pressure matrix data for each patient to generate personalized support reports. For example, this can be used to analyze the frequency and location of pressure peaks during prolonged surgeries, such as those lasting more than four hours, to guide postoperative pressure ulcer risk assessments. Pressure distribution patterns can also be compared across patients to optimize the inflation strategy for the airbag matrix and develop standardized operating guidelines.

[0029] Furthermore, each of the second sensing groups includes a plurality of second pressure sensing elements uniformly distributed in a straight line on the telescopic support end.

[0030] Furthermore, the base includes a base and a rotary joint, the groove is located on the base, there are two rotary joints, the two rotary joints are respectively arranged on both sides of the base, and the support parts are arranged on the two rotary joints in a one-to-one correspondence.

[0031] Furthermore, the support portion adopts a first support portion, and the first support portion includes a support rod, a first electric telescopic rod and a first support plate.

[0032] The support rod is an L-shaped structure, one end of which is fixed to the rotary joint, the fixed end of the first electric telescopic rod is arranged at the other end of the support rod, and the first support plate is hinged to the telescopic end of the first electric telescopic rod.

[0033] Furthermore, the support portion adopts a second support portion, which includes a fixed rod, an adjustment rod, an extension rod, a first connecting rod, a second connecting rod, a second electric telescopic rod, and a second support plate. One end of the fixed rod is fixed to the rotary joint, the adjustment rod is fixed to the other end of the fixed rod and is perpendicular to the fixed rod, a slide rail is provided on the adjustment rod along its length, one end of the extension rod is slidably set on the slide rail and is fastened by a first adjustment bolt, one end of the first connecting rod is fixed to the other end of the extension rod, one end of the second connecting rod is hinged to the other end of the extension rod, the fixed end of the second electric telescopic rod is hinged to the other end of the second connecting rod, and the two ends of the second support plate are hinged to the other end of the first connecting rod and the telescopic end of the second electric telescopic rod in a one-to-one correspondence.

[0034] Furthermore, the first connecting rod is a telescopic structure.

[0035] Furthermore, the second supporting portion further includes a stabilizing rod, one end of which is hinged on the second connecting rod, and the other end of which is slidably disposed on the extension rod and fastened by a second adjusting bolt.

[0036] The working method of the present invention is as follows: during actual use, the posture acquisition unit obtains the patient's head tilt angle and mandibular posture image in real time, and the processing unit can dynamically generate adjustment instructions based on the pressure information between the airbag and the head and the pressure information between the telescopic support end and the mandible monitored by the sensing unit, and automatically controls the inflation and deflation mechanism of the adjustment unit to inflate and deflate the airbag, and drives the telescopic support end of the support frame group of the support unit to move, so that the patient's head tilt angle is adjusted to 9°~15° on the basis of lifting the patient's mandible.

[0037] Compared with the existing technology, the beneficial effect of the present invention is that: based on the real-time data of the posture acquisition part and the sensing part, the processing part generates airbag inflation and deflation and support end extension and retraction instructions, realizing two-dimensional automatic control of the head reclining angle and mandibular posture.

[0038] The adjustment unit adjusts the patient's head tilt angle, while the support unit adjusts the mandibular posture, eliminating the problem of excessive local pressure caused by adjusting the support unit alone. The airbag adjusts the head tilt to optimize the airway axis, while the telescopic support unit precisely lifts the mandible to prevent the tongue from falling back. This creates a closed "collection-analysis-adjustment" loop that rapidly responds to changes in body position and improves intubation and ventilation efficiency.

[0039] It effectively avoids the anesthesiologist from having to manually adjust the mandibular support. It not only allows for precise control but also effectively reduces the burden on medical care. It is particularly suitable for use during long periods of sedation monitoring or during general anesthesia or general anesthesia recovery periods without intubation. It complies with the concepts of comfortable medical care and accelerated recovery. Its intelligent sensing and precise control technology represents an innovative breakthrough in the direction of efficiency and safety for anesthesia equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a cross-sectional view of the structure of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 It is a partial structural diagram of the regulating part of the present invention; Figure 5 is a structural diagram of a support frame assembly according to embodiment 1 of the present invention; Figure 6 is a structural diagram of a support frame assembly according to embodiment 2 of the present invention; Figure 7 It is a structural diagram of the support frame group of Example 3 of the present invention.

[0041] Among them, 1-base, 10-groove, 11-rotating joint, 2-adjusting part, 20-airbag, 3-support part, 30-support frame group, 31-first support part, 311-support rod, 312-first electric telescopic rod, 313-first support plate, 32-second support part, 321-fixing rod, 322-adjusting rod, 3220-slide rail, 323-extension rod, 324-first connecting rod, 325-second connecting rod, 326-second electric telescopic rod, 327-second support plate, 328-stabilizing rod. DETAILED DESCRIPTION

[0042] The following combination Figures 1 to 7, the specific embodiments of the present invention are described in detail. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed or operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0044] It should be noted that the circuit connections involved in the present invention all adopt conventional circuit connection methods and do not involve any innovation.

[0045] Example 1 like Figure 1 、 Figure 2 、 Figure 3 A mandibular support for anesthesiology shown includes a base 1, an adjustment portion 2, a support portion 3, a posture acquisition portion, a sensing portion, and a processing portion. The surface of the base 1 has a groove 10. The adjustment portion 2 is arranged in the groove 10, and has a plurality of airbags 20 and an inflation and deflation mechanism inside. Each airbag 20 is connected to the inflation and deflation mechanism, and the inflation and deflation mechanism is connected to the airbag 20 for adjusting the amount of gas inside the airbag 20. The support portion 3 includes two groups of support frame groups 30, which are respectively arranged on the base 1 and located on both sides of the adjustment portion 2. Each group of support portions 3 has a telescopic support end, which is used to contact the patient's mandible through expansion and contraction to lift and support the mandible. The posture acquisition portion is used to collect the patient's head posture image information, and the head posture image information includes mandibular posture information and the head tilt angle. The sensing unit includes a first sensing group and a second sensing group. The first sensing group is used to collect pressure information between the airbag 20 and the patient's head. There are two second sensing groups, each corresponding to two telescopic support ends, and is used to collect pressure information between the telescopic support end and the mandible. The processing unit is connected to the posture acquisition unit, the sensing unit, the adjustment unit 2, and the support unit 3. It is used to receive head posture image information and analyze it to generate adjustment instructions. The adjustment instructions include inflation and deflation instructions for the airbag 20 and extension and contraction instructions for the telescopic support ends. The inflation and deflation instructions are used to adjust the patient's head tilt angle, and the extension instructions are used to adjust the patient's mandibular posture.

[0046] In actual use, the posture acquisition unit captures real-time images of the patient's head tilt angle and mandibular posture. Combined with the pressure information between the airbag 20 and the head, and between the telescopic support end and the mandible, monitored by the sensing unit, the processing unit dynamically generates adjustment instructions, automatically controlling the inflation and deflation mechanism of the adjustment unit 2 to inflate and deflate the airbag 20, and driving the telescopic support end of the support frame assembly 30 of the support unit 3. This mechanism accurately maintains the patient's head tilt angle and mandibular posture. Compared to traditional manual adjustment, this mechanism relies on real-time feedback from the adjustment unit 2 within the groove 10 of the base 1, reducing lag and human error.

[0047] The multiple independent airbags 20 within the adjustment section 2 are linked by an inflation and deflation mechanism to conform to the patient's head curve, forming a variable support surface within the groove 10 of the base 1. Adjusting the air volume dynamically changes the head's recline angle, resolving the issue of a single fixed angle being insufficiently adaptable to different patients. The multiple airbags 20 within the adjustment section 2 can be independently inflated and deflated, creating a personalized support surface within the groove 10 of the base 1 based on the patient's head contour, allowing for practical adaptation to patients of varying body shapes.

[0048] The two groups of support frame groups 30 of the support part 3 are symmetrically distributed on both sides of the adjustment part 2. The telescopic support ends of each group of support frame groups 30 can be retracted independently or collaboratively, and fine-tuned according to the asymmetric or unilateral support requirements of the mandibular lifting to improve the stability and symmetry of the mandibular lifting.

[0049] Furthermore, since the adjustment portion 2 is embedded in the groove 10 of the base 1 and the support frame assembly 30 of the support portion 3 is symmetrically arranged on both sides of the groove 10, the overall structure is compact and does not occupy additional space around the operating table. Anesthesiologists can conveniently perform operations such as tracheal intubation and mask ventilation in an unobstructed area around the base 1, avoiding interference with the operating field of view by traditional brackets. There is no need for manual frequent adjustment of the patient's head and mandibular position. The processing unit automatically maintains the air volume of the airbag 20 and the telescopic state of the telescopic support end through real-time data feedback from the posture acquisition unit and the sensing unit, freeing up the energy of medical staff. This is particularly suitable for scenarios with tight staffing or complex surgeries.

[0050] Preferably, Figure 1 、 Figure 4 As shown, there are M×N airbags 20 distributed in an M×N grid matrix.

[0051] Multi-dimensional deformability: The grid matrix divides the airbags 20 into independent units (M rows x N columns), enabling differentiated inflation and deflation within the two-dimensional plane based on the three-dimensional curved features of the patient's head. For example, if a patient's occipital region is bulging to the left, the processing unit can inflate the left rear airbag 20 more and deflate the right rear airbag 20 appropriately, creating a support slope with a higher left and a lower right, correcting head tilt. For children, the support area can be contracted by reducing the inflation of the edge airbags 20 to accommodate smaller heads.

[0052] It breaks through the limitation of traditional single airbag or linear arrangement structure that can only adjust the "front and back height", realizes dynamic matching of left and right and front and back bidirectional curvature, and enables the adjustment part 2 to form a "personalized support matrix" in the groove 10 of the base 1 that fits the patient's head perfectly, increasing the contact area while reducing local pressure.

[0053] Independent Zoned Pressure Control: Each airbag 20 unit can independently adjust its air volume through an inflation and deflation mechanism. Combined with the pressure sensors in the first sensing group, this achieves regionalized closed-loop pressure control. For example, the airbag 20 in the sensitive temporal area can maintain a lower pressure, while the airbag 20 in the primary support area of ​​the occipital area can maintain a higher inflation volume, ensuring head stability while preventing pressure damage to sensitive areas.

[0054] Compound angle adjustment capability: The grid matrix structure enables the adjustment unit 2 to simultaneously adjust the head's backward tilt angle and fine-tune the left and right tilt / rotation angles through the air volume difference of the airbags 20 in different areas.

[0055] Tilt / Rotation Adjustment: This is achieved by adjusting the inflation volume difference between the front and rear airbags 20. When the front airbags 20 are deflated and the rear airbags 20 are inflated, the head tilts backward. Tilt / Rotation Adjustment: This is achieved by adjusting the inflation volume difference between the left and right airbags 20. When the left airbag 20 is inflated more than the right, the head tilts to the right, correcting head deviation caused by muscle relaxation during anesthesia.

[0056] During operations such as tracheal intubation and mechanical ventilation, the head can be quickly adjusted to complex postures such as "flower sniffing position + slight right rotation" without the need for multiple manual adjustments, thereby improving operational efficiency.

[0057] The grid matrix, through the synergistic action of 20 air cells, distributes the weight of the head across M×N contact points, reducing the standard deviation of contact pressure distribution by over 60%. Clinical data shows that the peak local pressure under grid matrix support can be controlled below 15 mmHg, which is lower than the critical value of 30 mmHg that triggers tissue ischemia.

[0058] It should be noted that: Figure 4 As shown, in this embodiment, the value is 10 and N is 8, that is, the airbags 20 are distributed in a 10×8 grid matrix and are divided into three area blocks. The first area block is composed of 2×8 airbags 20, the second area block is composed of 5×8 airbags 20, and the third area block is composed of 3×8 airbags 20.

[0059] Preferably, the inflation and deflation mechanism is used to adjust the air volume inside the M×N airbags 20 respectively, so as to adjust the patient's head tilt angle to 9° to 15°.

[0060] The ideal recline angle range for the "flower-sniffing position" during anesthesia is 9° to 15°, which can bring the oral cavity, pharynx, and larynx axes closer together, significantly improving the laryngoscopic field of view. The inflation and deflation mechanism adjusts the air volume differential between the anterior and posterior airbags 20, such as deflating the anterior airbag and inflating the posterior airbag. This dynamically locks the angle at an individualized optimal value based on different anatomical characteristics of the patient's cervical spine, mandibular length, and other characteristics. For example, 9° is used for short-necked patients and 15° for long-necked patients, preventing traditional fixed-angle brackets from being inadequate for some patients.

[0061] While maintaining the overall backward leaning angle, the inflation and deflation mechanism can fine-tune the air volume of the left and right airbags 20. For example, the left airbag can be inflated 5% more to correct the lateral deviation or rotation of the head and align the axis of the glottal fissure with the center of the laryngoscope field of view. This is especially suitable for asymmetric posture adjustment of patients with limited cervical spine movement.

[0062] Within the 9° to 15° angle range, the mandibular support can be used in conjunction with laryngeal mask airways, video laryngoscopes, fiberoptic bronchoscopes, and other devices. For example, when using a video laryngoscope, an angle of 10° to 12° optimizes the camera's field of view; when using a laryngeal mask airway, an angle of 13° to 15° increases pharyngeal space and improves the success rate of insertion.

[0063] In actual use, the inflation and deflation mechanism can store three sets of commonly used angle presets, such as 9°, 12°, and 15°. The anesthesiologist can call them up with one click on the touch screen of the processing unit, and synchronize the movement of the telescopic support end of the support unit 3. It only takes 8 to 10 seconds from the patient lying flat to completing the position adjustment, which is more than 50% faster than traditional manual adjustment. It is particularly suitable for emergency airway management, such as rescue intubation. For pediatric patients, the safe angle for head tilt is 8° to 12°. The inflation and deflation mechanism can automatically switch to "child mode", limiting the maximum angle to 12°. It also reduces the support area by reducing the inflation volume of the edge airbag 20, avoiding head tilt caused by excessive support in adult mode.

[0064] Preferably, the first sensing group includes M×N first pressure sensors, distributed one-to-one on the surface of the airbag 20, for collecting pressure information between each airbag 20 and the patient's head. This improves pressure monitoring accuracy from "overall average" to "single airbag unit level," with advantages reflected in core dimensions such as spatial resolution, dynamic response capability, and pressure anomaly warning.

[0065] The first pressure sensing element on the surface of each airbag 20 can collect the contact pressure of the area in real time to form an M×N pressure matrix heat map, which intuitively reflects the contact status between the head and the bracket.

[0066] For example, if a patient's occipital tilt shifts to the left, the pressure sensor reading on the left rear airbag 20 increases. The processing unit immediately instructs the ipsilateral airbag to deflate and the contralateral airbag to inflate, correcting the pressure distribution within one second and preventing localized high pressure from exceeding the tissue tolerance threshold. Compared to traditional single-point pressure monitoring, this solution overcomes the blind spot of "normal overall pressure but localized overload," significantly reducing the risk of missed pressure ulcer detection.

[0067] The inflation and deflation instructions for each airbag 20 are directly linked to the data from its surface pressure sensor, forming an independent feedback loop. For example, when the pressure in a particular airbag 20 is less than 10 mmHg, the processing unit instructs it to inflate by 5%. When the pressure exceeds 20 mmHg, it instructs it to deflate by 3%, until the pressure returns to the safe range of 10-18 mmHg. Compared to the traditional "global unified adjustment" model, this mechanism achieves the ideal support state of "maximizing contact area and minimizing local pressure."

[0068] High-frequency response to subtle head changes: The pressure sensor can sample at up to 100Hz, capable of capturing submillimeter head displacements caused by respiratory fluctuations, muscle tremors, and other factors. For example, during spontaneous breathing, chest movement can cause the head to thrust forward by 0.5cm, resulting in a sudden increase of 5mmHg in the pressure of the anterior airbag 20. The processing unit compensates by deflating the airbag in real time, maintaining a head tilt angle fluctuation of ≤±0.3°. During the onset of muscle relaxants, mandibular relaxation can cause the head to slide backward, resulting in a 3mmHg drop in the pressure of the posterior airbag 20. The processing unit then inflates the airbag simultaneously to maintain a stable angle. Compared to traditional low-frequency monitoring, such as 5Hz, the response speed is increased by 20 times, avoiding the degradation of airway exposure quality caused by delayed adjustment.

[0069] Preventing unconscious movement injuries: If the patient twists his head, such as the amplitude is ≤10°, the corresponding edge airbag 20 pressure sensor can promptly detect a sudden increase in unilateral pressure, such as >25mmHg. The processing unit immediately triggers the "anti-squeeze protection program" to reduce the inflation volume of the airbag on that side within 0.3 seconds, while maintaining the overall angle by inflating the airbag on the opposite side.

[0070] Refined support for pediatric patients: The area of ​​a child's head is approximately 1 / 3 to 1 / 2 of that of an adult's. M×N pressure sensors can accurately identify the covered area of ​​the head. For example, if only the middle 3×3 airbags have pressure data, the processing unit will automatically turn off the inflation and deflation functions of the airbags 20 in the untouched area to avoid discomfort caused by accidental contact of redundant airbags. At the same time, the pressure standard deviation of the effective support area is controlled within ±2mmHg, improving the tolerance of pediatric patients.

[0071] Anesthesia pressure data archiving: The processing unit can store M×N pressure matrix data for each patient to generate personalized support reports. For example, analysis can be performed to determine the frequency and location of pressure peaks during prolonged surgeries, such as those lasting more than four hours, to guide postoperative pressure ulcer risk assessment. Pressure distribution patterns can also be compared across patients to optimize inflation strategies for the 20-balloon matrix and generate standardized operating guidelines.

[0072] Preferably, Figure 2 、 Figure 3 As shown, the base 1 includes a base and a rotary joint 11, the groove 10 is located on the base, there are two rotary joints 11, and the two rotary joints 11 are respectively arranged on both sides of the base, and the support parts 3 are arranged on the two rotary joints 11 in a one-to-one correspondence.

[0073] Preferably, Figure 5 As shown, the support portion 3 is a first support portion 31, which includes a support rod 311, a first electric telescopic rod 312, and a first support plate 313. The support rod 311 is an L-shaped structure, with one end fixed to the rotary joint 11, the fixed end of the first electric telescopic rod 312 is set at the other end of the support rod 311, and the first support plate 313 is hinged to the telescopic end of the first electric telescopic rod 312.

[0074] Preferably, the second sensing group includes a plurality of second pressure sensing elements uniformly distributed in a straight line on the telescopic support end. In this embodiment, the plurality of second pressure sensing elements are uniformly distributed in a straight line on the side of the first support plate 313 away from the telescopic end of the first electric telescopic rod 312.

[0075] It should be noted that: In this embodiment, the first pressure sensing element and the second pressure sensing element both use flexible film pressure sensors of model Tekscan FlexiForceA201, with a resolution of 0.1N and a thickness of 0.3mm.

[0076] The material of the airbag 20 is medical-grade TPU, and the inflation and deflation mechanism uses a micro air pump of model TESCOM TP-40.

[0077] The processing unit is an STM32L432 MCU, which supports floating-point operations and meets the requirements of real-time calculation of the PID algorithm.

[0078] In addition, this embodiment also carries a 2000mAh lithium battery as a power source to power various components.

[0079] In actual use, the single point pressure value of the airbag 20 is calculated according to the formula Get, among them, represents the normal pressure borne by the first pressure sensing element, represents the effective sensing area of ​​the first pressure sensing element. The area of ​​a single unit of the thin film sensor in this embodiment is m 2 ; Indicates the row index, along the length direction of the adjustment part 2, with a value of 1 to M; Indicates the column index, along the width direction of the adjustment part 2, with a value of 1 to N.

[0080] After the patient's head contacts the adjustment part 2, the pressure center coordinates are calculated according to the following formula.

[0081] , ;in, represents the row coordinate of the center of pressure, Column coordinate representing the center of pressure.

[0082] The operating principle of this embodiment is: Before use, each air bag 20 is inflated to a reference pressure, which is a safety pressure value. .

[0083] Place the patient's head on the adjustment part 2, and the first sensing group continuously collects pressure information for 3s to 5s to calculate the total pressure. .

[0084] Since the patient's head tilt angle is adjusted to 9° to 15°, that is, the preset ideal tilt angle is 9° to 15°, the corresponding pressure center target range is: This conclusion is calibrated through ergonomic experiments, that is, the 6th column, 7th column, 8th column or 9th column is the pressure center.

[0085] According to the formula Calculate the real-time deviation, where Indicates real-time deviation, Indicates the real-time pressure center column coordinates, Indicates the center value of the target range. When , it means the head is leaning forward and needs to be adjusted backward; when , it means the head is tilted back too much and needs to be adjusted back. The value is 6 or 7 or 8 or 9, which is determined by the total pressure The head mass of people of different body types is different, and the head mass corresponds to the total pressure ,Right now , m represents the head mass, =9.8, patients are divided into four levels according to head mass, corresponding to Different values ​​of .

[0086] After adjusting the patient's head, the support portion 3 is adjusted to the appropriate angle by adjusting the rotary joint 11. The first support plate 313 is adjusted to contact the patient's mandible by controlling the first electric telescopic rod 312 (at this point, the pressure signal collected by the second pressure sensor is less than 5N). If any angle deviation occurs during this process, the rotary joint 11 is continuously adjusted. The first electric telescopic rod 312 is then continuously controlled to adjust the first support plate 313 to support the patient's mandible to the ideal mandibular position. During this process, the second pressure sensor continuously monitors pressure information. When the pressure detected by the second pressure sensor reaches a safety threshold, indicating that the ideal mandibular position has not yet been achieved, the first electric telescopic rod 312 stops and adjusts the airbag 20 to perform a defensive adjustment to the head position. This defensive adjustment involves retracting the patient's head backward. This retraction adjustment allows the first support plate 313 to support the patient's mandible to the ideal mandibular position. This process is primarily intended to prevent the first support plate 313 from exerting excessive force on the patient's mandible, which could cause the patient's head to tilt further backward. Therefore, the retraction adjustment is performed to prevent excessive head tilt. Through the complete "pressure detection-mass calibration-PID control-airbag execution" closed-loop system, the adaptability of users of different body shapes is ensured.

[0087] Example 2 The difference from Example 1 is that: Figure 6 The support portion 3 shown in the figure adopts a second support portion 32, which includes a fixed rod 321, an adjustment rod 322, an extension rod 323, a first connecting rod 324, a second connecting rod 325, a second electric telescopic rod 326, and a second support plate 327. One end of the fixed rod 321 is fixed to the rotary joint 11, and the adjustment rod 322 is fixed to the other end of the fixed rod 321 and is perpendicular to the fixed rod 321. A slide rail 3220 is provided on the adjustment rod 322 along its length. One end of the extension rod 323 is slidably provided on the slide rail 3220 and is fastened by a first adjustment bolt. One end of the first connecting rod 324 is fixed to the other end of the extension rod 323, and one end of the second connecting rod 325 is hinged to the other end of the extension rod 323. The fixed end of the second electric telescopic rod 326 is hinged to the other end of the second connecting rod 325. The two ends of the second support plate 327 are hinged to the other end of the first connecting rod 324 and the telescopic end of the second electric telescopic rod 326, respectively.

[0088] Preferably, the first connecting rod 324 is a telescopic structure.

[0089] Example 3 The difference from Example 1 is that: Figure 7 As shown, the second support portion 32 further includes a stabilizing rod 328 , one end of which is hinged on the second connecting rod 325 , and the other end of which is slidably disposed on the extension rod 323 and fastened by a second adjusting bolt.

[0090] The specific models of the above electronic components are not particularly specified, and common products available on the market can be selected as long as they can meet the use requirements of the present invention.

[0091] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A mandibular support for anesthesiology, characterized in that: include: a base body having grooves on its surface; an adjusting portion, disposed in the groove, having a plurality of airbags and an inflation and deflation mechanism therein, each of the airbags being connected to the inflation and deflation mechanism, the inflation and deflation mechanism being connected to the airbag, for adjusting the amount of air inside the airbag; The support portion includes two sets of support frame groups, which are respectively arranged on the base and located on both sides of the adjustment portion. Each set of support frames has a telescopic support end, which is used to contact the patient's mandible by telescoping to lift and support the mandible; A posture acquisition unit, configured to acquire head posture image information of the patient, wherein the head posture image information includes mandibular posture information and head tilt angle; The sensing part includes: a first sensing group for collecting pressure information between the airbag and the patient's head; There are two second sensing groups, each corresponding to two telescopic support ends, used to collect pressure information between the telescopic support end and the mandible; The processing unit is connected to the posture acquisition unit, the sensing unit, the adjustment unit, and the support unit, and is used to receive head posture image information and analyze and generate adjustment instructions. The adjustment instructions include inflation and deflation instructions for the airbag and extension and retraction instructions for the retractable support end. The inflation and deflation instructions are used to adjust the patient's head tilt angle, and the extension and retraction instructions are used to adjust the patient's mandibular posture.

2. The mandibular support for anesthesia according to claim 1, characterized in that: There are M×N airbags distributed in an M×N grid matrix.

3. The mandibular support for anesthesia according to claim 2, characterized in that: The inflation and deflation mechanism is used to adjust the air volume inside the M×N air bags respectively, so as to adjust the patient's head tilt angle to 9° to 15°.

4. The mandibular support for anesthesia according to claim 1, characterized in that: The first sensing group includes M×N first pressure sensing elements, which are distributed on the surface of the airbag in a one-to-one correspondence and are used to collect pressure information between each airbag and the patient's head.

5. The mandibular support for anesthesia according to claim 1, characterized in that: The second sensing group includes a plurality of second pressure sensing elements uniformly distributed in a straight line on the telescopic support end.

6. The mandibular support for anesthesia according to claim 1, characterized in that: The substrate comprises: a base, wherein the groove is located on the base; There are two rotating joints, which are respectively arranged on both sides of the base, and the supporting parts are arranged on the two rotating joints in a one-to-one correspondence.

7. The mandibular support for anesthesia according to claim 6, characterized in that: The supporting portion adopts a first supporting portion, and the first supporting portion includes: The support rod is an L-shaped structure with one end fixed to the rotary joint; a first electric telescopic rod, the fixed end of which is arranged at the other end of the support rod; The first support plate is hinged to the telescopic end of the first electric telescopic rod.

8. The mandibular support for anesthesia according to claim 6, characterized in that: The supporting portion adopts a second supporting portion, and the second supporting portion includes: A fixed rod, one end of which is fixed to the rotary joint; The adjusting rod is fixed to the other end of the fixed rod and is perpendicular to the fixed rod. The adjusting rod is provided with a slide rail along the length direction. An extension rod, one end of which is slidably disposed on the slide rail and fastened by a first adjusting bolt; A first connecting rod, one end of which is fixed to the other end of the extension rod; A second connecting rod, one end of which is hinged to the other end of the extension rod; a second electric telescopic rod, the fixed end of which is hinged to the other end of the second connecting rod; The second supporting plate has two ends hinged to the other end of the first connecting rod and the telescopic end of the second electric telescopic rod in a one-to-one correspondence.

9. The mandibular support for anesthesiology according to claim 8, characterized in that: The first connecting rod is a telescopic structure.

10. The mandibular support for anesthesiology according to claim 9, characterized in that: The second supporting portion further includes a stabilizing rod, one end of which is hinged on the second connecting rod, and the other end of which is slidably disposed on the extension rod and fastened by a second adjusting bolt.

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