Body positioning device for endoscopic procedures

Abstract

The application relates to a body positioning device for endoscopy operation and belongs to the technical field of medical detection equipment, which solves the technical problem of airway compression existing in the fixing device in the prior art. The body positioning device for endoscopy operation comprises a head-neck support pad, a jaw part frame, a shoulder support pad, a waist support pad, a leg support pad and an operation bed. Through the arrangement of the jaw part frame, the head of a patient can be adjusted to a suitable hyperextension position, the neck soft tissue is pulled apart, the front-to-back diameter of the airway is increased, the mandibular pressure is uniformly dispersed, the extrusion of the soft tissue on the airway is reduced, the incidence of airway compression in the gastroenteroscopy process is reduced, and the safety of the endoscopy is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a body positioning device for endoscopic examination procedures. Background Technology

[0002] Endoscopic examinations routinely use a combination of a cotton pillow, sheet, and shoulder strap for left lateral decubitus positioning. After anesthesia, the patient's muscle tone disappears, and the neck is passively stressed: the cotton pillow only provides a fixed depression and cannot continue to lift the chin; the shoulder strap often pulls forward to maintain position, causing passive flexion of the neck, posterior displacement of the tongue base, and a momentary reduction of more than 50% in the pharyngeal cavity cross-section. Obese patients, those with short necks, and those with obstructive sleep apnea (OSA) are more prone to complete airway obstruction, increasing the incidence of intraoperative hypoxemia. This necessitates repeated manual chin support or placement of oropharyngeal airways, increasing the risk of operative interruption. Existing positioning devices cannot adjust the posterior tilt angle, nor can they maintain the optimal open airway position of "chin lifted, neck slightly extended" in real time under thrust. Airway compression becomes a prominent challenge in endoscopic examinations. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a body positioning device for endoscopic examination procedures, in order to solve the technical problem of airway compression caused by existing fixation devices.

[0004] The objective of this invention is mainly achieved through the following technical solutions:

[0005] A body positioning device for endoscopic examination includes a head and neck support pad, a jaw frame, a shoulder support pad, a lumbar support pad, a leg support pad, and an operating bed. The head and neck support pad, the jaw frame, the shoulder support pad, the lumbar support pad, and the leg support pad are all disposed on the operating bed.

[0006] The head and neck support pad is placed under the patient's head and neck, the jaw support pad is placed under the patient's jaw, the shoulder support pad is placed under the patient's shoulders and connected to the operating bed, the lumbar support pad is placed under the patient's lumbosacral region, and the leg support pad is placed under the patient's knees to provide support.

[0007] Furthermore, it also includes a jaw frame connector, which includes a slot and a rod. The slot is formed in the head and neck support pad, and the rod is disposed on the jaw frame. The rod can be inserted into the slot and can be pulled out of the slot.

[0008] Furthermore, the shoulder support pad includes a first shoulder pad unit and a second shoulder pad unit connected to each other, with the first shoulder pad unit placed in front of the shoulder and the second shoulder pad unit placed behind the shoulder.

[0009] Furthermore, the supporting shoulder pad also includes a second connecting strap, which connects the first shoulder pad unit and the second shoulder pad unit to the operating bed.

[0010] Furthermore, the supporting shoulder pad also includes a unit distance adjustment member connected between the first shoulder pad unit and the second shoulder pad unit to adjust the distance between the first shoulder pad unit and the second shoulder pad unit.

[0011] Furthermore, the lumbar support pad includes a vertical plate and an adjusting insert, the vertical plate being disposed on the operating bed, and the adjusting insert abutting against the vertical plate to contact the patient's lumbosacral region.

[0012] Furthermore, the upright plate is movably positioned on the operating bed.

[0013] Furthermore, the adjustment insert is provided with multiple inserts.

[0014] Furthermore, the leg support pad can be adjusted in position on the operating bed.

[0015] Furthermore, the operating bed includes an operating bed body and a flexible pad layer disposed on the operating bed body.

[0016] The technical solution of this invention can achieve at least the following effects:

[0017] (1) The body positioning device for endoscopic examination described in this invention can adjust the patient's head to a suitable extended position by setting the jaw frame, stretching the soft tissue of the neck, increasing the anteroposterior diameter of the airway, and at the same time evenly distributing the pressure of the mandible, reducing the compression of the airway by the soft tissue, reducing the incidence of airway compression during gastrointestinal endoscopy, and improving the safety of endoscopic examination.

[0018] (2) The body positioning device for endoscopic examination described in this invention can adjust the distance between the first shoulder pad unit and the second shoulder pad unit according to the specific shoulder size of the patient by setting the unit distance adjustment component. By changing the distance, the shoulder pad can adapt to the shoulder characteristics of different patients. The first shoulder pad unit and the second shoulder pad unit support the shoulder from the front and back directions, so that the body pad can fit closely to the patient's shoulder and effectively prevent the shoulder from shifting or shaking during the examination. This helps the examining physician's examination operation and improves the quality and safety of the examination.

[0019] (3) The body positioning device for endoscopic examination described in this invention uses a fixed shaft and a support plate for rigid support. The first or second abutment plate is driven to adjust the angle under the flexible inflation of the support sac tube, thereby realizing the adjustment of lower limb posture control. Furthermore, the patient's comfort is improved by uniformly dispersing the body surface pressure through the shrinkage of the sac.

[0020] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0022] Figure 1 This is a schematic diagram of the body positioning device used for endoscopic examination in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the jaw frame structure in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the shoulder pad in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the unit distance adjustment component in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the controller in an embodiment of the present invention;

[0027] Figure 6 This is one of the structural schematic diagrams of the inter-leg angle adjustment component in an embodiment of the present invention;

[0028] Figure 7 This is a second schematic diagram of the structure of the leg angle adjustment component in an embodiment of the present invention;

[0029] Figure 8 This is one of the structural schematic diagrams of the flexible compensation component in an embodiment of the present invention;

[0030] Figure 9 This is the second schematic diagram of the flexible compensation component in an embodiment of the present invention.

[0031] Figure label:

[0032] 1-Head and neck support pad, 2-Jaw frame, 21-Jaw frame body, 22-Contraction bladder, 23-First connecting strap, 24-Inflatable deflating balloon, 3-Shoulder support pad, 31-First shoulder pad unit, 32-Second shoulder pad unit, 33-Shoulder pad unit connecting part, 34-Unit distance adjustment component, 341-First adjustment strap, 342-Second adjustment strap, 343-Snap fastener, 35-Second connecting strap, 4-Lumbar support pad, 41-Upright plate, 42-Adjusting insert, 5-Leg support pad 51-Leg angle adjustment assembly, 510-Fixed shaft, 511-First abutting piece, 512-Second abutting piece, 513-Support piece, 514-Support bladder tube, 515-Leg connecting belt, 516-Pre-tightening spring, 517-Flexible support rib, 6-Operating bed, 7-Jaw frame connector, 71-Insertion rod, 8-Flexible compensation assembly, 81-Support plate, 82-Bearing plate, 83-First support spring, 84-Second support spring, 85-Sliding plate, 86-Elastic belt. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0034] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0035] Example 1

[0036] like Figure 1 As shown, this embodiment of the invention provides a body positioning device for endoscopic examination, including a head and neck support pad 1, a jaw frame 2, a shoulder support pad 3, a lumbar support pad 4, a leg support pad 5, and an operating table 6. The head and neck support pad 1, jaw frame 2, shoulder support pad 3, lumbar support pad 4, and leg support pad 5 are all mounted on the operating table 6. Figure 2 As shown, the jaw frame 2 includes a jaw frame body 21, a contraction bladder 22, a first connecting strap 23, and an air-inflation deflation balloon 24. The contraction bladder 22 is disposed on the jaw frame body 21 to support the mandible. The first connecting strap 23 is tied to both ends of the jaw frame body 21 to connect the jaw frame body 21 to the patient's head. The air-inflation deflation balloon 24 is connected to the contraction bladder 22 to inflate or deflate the contraction bladder 22.

[0037] The head and neck support pad 1 forms a support surface for the head and limits cervical hyperextension. The head and neck support pad 1 can be pillow-shaped; for example, it can be made of memory foam. As an improvement, the outer side of the head and neck support pad 1 can be covered with a waterproof sleeve, which can be removed from the head and neck support pad 1. The waterproof sleeve can be made of medical-grade thermoplastic polyurethane (TPU) film. The jaw support frame 2 is used to support the mandible. The shoulder support pad 3 is used to fix the shoulder girdle and prevent the trunk from moving forward or backward under the thrust of the endoscope. The lumbar support pad 4 forms a blocking structure for the sacrum, cutting off the tendency of the pelvis to move towards the foot of the bed. The inter-leg support pad 5 is used to maintain the knee flexion angle; for example, it can be made of memory foam. When the patient lies on their side, the knee joint presses against the inter-leg support pad 5, forming a depression, thereby maintaining the knee flexion angle. The operating bed 6 serves as a common base, enabling... The head and neck support pad 1, jaw frame 2, shoulder support pad 3, waist support pad 4, and leg support pad 5 are mounted on it. Specifically, the jaw frame 2 includes a jaw frame body 21, a contraction bladder 22, a first connecting strap 23, and an air-injection and deflation bladder 24. The jaw frame body 21 can be made of rigid material to provide a stable support structure and a mounting base for the contraction bladder 22, allowing the contraction bladder 22 to be placed under the chin to support the chin. It also provides a fixed anchor point for the first connecting strap 23. The contraction bladder 22 expands by inflating, and the expansion force acts on the patient's chin, lifting the chin upward and forward, so that the head is in a proper extended position. This postural adjustment can stretch the soft tissues of the neck, increase the anteroposterior diameter of the airway, thereby effectively relieving airway compression, maintaining airway patency, and effectively reducing the incidence of decreased blood oxygen saturation during gastroscopy and colonoscopy. The first connecting strap 23 connects the jaw frame body to the patient's head, preventing the jaw frame from shifting due to patient movement or examination procedures during the examination. This ensures the jaw frame 2 accurately supports the mandible and maintains the correct position of the patient's head and neck. The inflation or deflation of the sphygmomanometer balloon 24 can be performed by manually squeezing the balloon. For example, the sphygmomanometer balloon 24 can be used as an inflation balloon. Thus, through the cooperation of the jaw frame body 21, the sphygmomanometer balloon 22, the first connecting strap 23, and the inflation balloon 24, the patient's head can be adjusted to a suitable extended position, stretching the neck soft tissue, increasing the anteroposterior diameter of the airway, and evenly distributing the pressure on the mandible, reducing soft tissue compression of the airway. This reduces the incidence of airway compression during endoscopic examinations, improves the safety of endoscopic examinations, and solves the technical problems existing in the prior art.

[0038] One specific embodiment of the present invention is as follows: Figure 2 As shown, it also includes a jaw frame connector 7, which includes a slot and a rod 71. The slot is opened in the head and neck support pad 1, and the rod 71 is disposed on the jaw frame 2. The rod 71 can be inserted into the slot and can be pulled out of the slot.

[0039] Insert the insert rod 71 into the slot to connect the jaw frame 2 to the head and neck support pad 1; pull it out in the opposite direction to disassemble the whole unit.

[0040] In one specific embodiment of the present invention, the leg support pad 5 can be adjusted in position on the operating bed 6.

[0041] The position of the leg support pad 5 is adjusted appropriately according to the different body types and postures of patients, which improves the applicability of the entire device.

[0042] In one specific embodiment of the present invention, the operating bed 6 includes an operating bed body and a flexible pad layer disposed on the operating bed body.

[0043] The operating bed body serves as the basic structure of the entire device, supporting the weight of the patient's body and accessories such as the leg support pad 5. The flexible pad layer is in direct contact with the patient's body, which can distribute the pressure of the patient's body on the operating bed body, reduce local pressure, and avoid discomfort and pain caused by prolonged contact with hard surfaces. For example, the flexible pad layer can be made of sponge material.

[0044] One specific embodiment of the present invention is as follows: Figure 1 As shown, the lumbar support pad 4 includes a vertical plate 41 and an adjusting insert 42. The vertical plate 41 is set on the operating bed 6, and the adjusting insert 42 is close to the vertical plate 41 to abut against the patient's lumbosacral region.

[0045] The upright plate 41 is installed on the operating table 6 to provide a support structure for the entire lumbar support pad 4. For example, the operating table 6 is provided with a slot that mates with the upright plate 41. The upright plate 41 is fixed to the operating table 6 by inserting it into the slot. The upright plate 41 can be made of a rigid material, such as stainless steel. The adjusting insert 42 is located between the patient's lumbosacral region and the upright plate 41 to distribute the body weight borne by the lumbosacral region, reduce local pressure, and alleviate the patient's fatigue and discomfort during long examinations. As a result, the patient's fatigue and discomfort can be reduced, as can the patient's anxiety and resistance caused by physical discomfort, and the patient's tolerance and cooperation during the examination can be improved.

[0046] Based on this, the vertical plate 41 is movable and positioned on the operating bed 6.

[0047] The upright plate 41 can be moved on the operating table 6, so that the lumbar support pad 4 can be flexibly adjusted according to the patient's specific situation. For example, by moving the upright plate 41, the position of the adjustment insert 42 can be changed so that it fits the patient's lumbosacral region better, providing personalized support and improving the patient's comfort and the accuracy of the examination.

[0048] Furthermore, the insert 42 is adjusted to have multiple inserts.

[0049] The multiple adjustable inserts 42 can be independently adjusted or combined according to different parts and curvatures of the lumbosacral region. In this way, they can conform to the natural curve of the human lumbosacral region, provide uniform and comfortable support, reduce local pressure concentration, and improve patient comfort.

[0050] Example 2

[0051] Embodiment 2 of the present invention is a further improvement based on Embodiment 1, such as... Figure 3 As shown, the shoulder support pad 3 includes a first shoulder pad unit 31, a second shoulder pad unit 32, a shoulder pad unit connecting part 33, and a unit distance adjusting member 34. The first shoulder pad unit 31 is placed in front of the shoulder, and the second shoulder pad unit 32 is placed behind the shoulder. The shoulder pad unit connecting part 33 and the unit distance adjusting member 34 are both connected between the first shoulder pad unit 31 and the second shoulder pad unit 32. The shoulder pad unit connecting part 33 is used to connect the first shoulder pad unit 31 and the second shoulder pad unit 32 into one unit, and the unit distance adjusting member 34 is used to adjust the distance between the first shoulder pad unit 31 and the second shoulder pad unit 32.

[0052] The first shoulder pad unit 31 is placed in front of the shoulder to provide support for the front of the shoulder. During gastroscopy and colonoscopy, patients usually need to adopt a specific position, such as the left lateral decubitus position. The first shoulder pad unit 31 can prevent the front of the shoulder from sliding down due to gravity or body movement, and maintain the shoulder in a proper position during the examination. It can adopt an inward concave structure that matches the front of the shoulder. The second shoulder pad unit 32 is placed behind the shoulder and works in conjunction with the first shoulder pad unit 31 to support the shoulder from both front and rear directions. It is used to prevent the rear of the shoulder from shifting due to body twisting or movement during the examination, and to ensure that the shoulder is in a stable state. It can adopt an inward concave structure that matches the rear of the shoulder. The unit distance adjustment component 34 can adjust the distance between the first shoulder pad unit 31 and the second shoulder pad unit 32 according to the patient's specific shoulder size. By changing the distance, the supporting shoulder pad 3 can adapt to the shoulder characteristics of different patients. The first shoulder pad unit 31 and the second shoulder pad unit 32 support the shoulder from both front and back directions. Combined with the shoulder pad unit connecting part 33 connecting them into a whole, and the unit distance adjustment component 34 adjusting according to the patient's shoulder condition, the supporting shoulder pad 3 can fit snugly against the patient's shoulder, effectively preventing shoulder displacement or shaking during the examination. This facilitates the examining physician's operation and improves the quality and safety of the examination. For example, both the first shoulder pad unit 31 and the second shoulder pad unit 32 can be made of memory foam, and the shoulder pad unit connecting part 33 can be made of silicone.

[0053] Based on this, the shoulder support pad 3 also includes a second connecting strap 35, which connects the first shoulder pad unit 31 and the second shoulder pad unit 32 to the operating bed 6.

[0054] The second connecting strap 35 connects the first shoulder pad unit 31 and the second shoulder pad unit 32 to the operating table 6, forming a stable support. For example, the connection between the second connecting strap 35 and the first shoulder pad unit 31, the second shoulder pad unit 32 or the operating table 6 can be a Velcro connection, thereby preventing the shoulder pad from sliding or shifting in the horizontal or vertical direction, and ensuring that the shoulder remains in a stable fixed state throughout the entire inspection process.

[0055] One specific embodiment of the present invention is as follows: Figure 4 As shown, the unit distance adjustment component 34 includes a first adjustment belt 341, a second adjustment belt 342, and a buckle 343. One end of the first adjustment belt 341 is fixedly mounted on the first shoulder pad unit 31, and the other end extends into the buckle 343. One end of the second adjustment belt 342 is fixedly mounted on the second shoulder pad unit 32, and the other end extends into the buckle 343. The buckle 343 can press or release the inserted first adjustment belt 341 and second adjustment belt 342.

[0056] The latch 343 is the core control component of the unit distance adjustment component 34. It can tighten or loosen the first adjustment band 341 and the second adjustment band 342. When it is necessary to adjust the shoulder pad spacing, the latch 343 is loosened, allowing the first adjustment band 341 and the second adjustment band 342 to move freely. After adjusting to the appropriate position, the latch 343 is tightened to fix the adjustment band, thereby locking the spacing between the first shoulder pad unit 31 and the second shoulder pad unit 32. For example, the latch 343 is provided with a screw. The screw rotates on the latch 343 to tighten or loosen the first adjustment band 341 and the second adjustment band 342.

[0057] Example 3

[0058] Embodiment 3 of the present invention is a further improvement based on Embodiment 1 or Embodiment 2, such as... Figure 5 As shown, the body positioning device for endoscopic examination also includes a controller. The controller includes a control chip and a bioelectric sensor, an airflow sensor, and an inflation / deflation control module connected to the control chip. The bioelectric sensor is attached to the surface skin of the patient's neck and airway to detect the bioelectric activity of the neck muscles and convert the bioelectric signal into an electrical signal, which is then transmitted to the control chip. The airflow sensor is installed at the patient's nostrils to monitor the flow rate and velocity of the airflow during the patient's breathing in real time and transmits the airflow data to the control chip. The control chip drives the inflation / deflation control module to inflate or deflate the contraction bag 22 based on the bioelectric signal data and the flow rate and velocity of the patient's breathing airflow.

[0059] The control chip receives and processes data from various sensors, makes decisions based on preset algorithms and logic, and drives the inflation / deflation control module to perform corresponding operations. Based on bioelectrical signals from the bioelectric sensors, the control chip identifies characteristic signal patterns under different muscle activity states; based on airflow data from the airflow sensors, it calculates the flow rate and velocity trends, and makes reasonable decisions based on changes in bioelectrical signals and airflow data to ensure that the state of the contraction bag 22 adapts to the patient's current physiological condition and examination needs. The bioelectric sensors are attached to the surface skin around the patient's neck and airway, detecting these signals... The bioelectrical activity of these parts can be used to obtain the patient's physiological state; the airflow sensor monitors the flow rate and velocity of the airflow during the patient's breathing in real time to obtain the patient's respiratory state, including respiratory rate, respiratory depth and other information; the inflation / deflation control module is used to inflate or deflate the contraction bag according to the drive signal issued by the control chip. By adjusting the gas pressure in the contraction bag, the volume and rigidity of the contraction bag are changed, thereby realizing the adjustment and fixation of the patient's position. The inflation / deflation control module includes an air pump and a solenoid valve. When inflating, the control chip starts the air pump to inflate the contraction bag 22. When deflation, the control chip opens the solenoid valve to deflate the contraction bag 22.

[0060] Specifically, during gastroscopy and colonoscopy, bioelectric sensors continuously monitor the bioelectric activity of the muscles around the patient's neck and airway, transmitting the bioelectric signals to the control chip. Simultaneously, airflow sensors monitor the flow rate and velocity of airflow through the patient's nostrils in real time, sending the airflow data to the control chip. The control chip continuously receives and analyzes this data. When it detects increased tension in the patient's neck muscles (changes in bioelectric signals) and an increased respiratory rate and airflow (potentially indicating patient discomfort or movement), the control chip determines that the contraction sac needs adjustment to better stabilize the patient's position. Therefore, the control chip drives the inflation / deflation control module to appropriately inflate the contraction sac, increasing its support and stabilization effect on the patient's body. Conversely, if the patient's breathing is stable and muscles are relaxed, the control chip may, as needed, drive the inflation / deflation control module to deflate the contraction sac slightly to improve patient comfort. Through this dynamic adjustment mechanism, the patient maintains a stable and comfortable position throughout the entire gastroscopy and colonoscopy process.

[0061] Specifically, the bioelectric sensor collects the bioelectric signal E(t) from the patient's neck muscles, and the airflow sensor collects the flow rate and velocity signals F(t) of the respiratory airflow at the patient's nostrils, where t represents time. The control chip filters the collected bioelectric signal E(t) and respiratory airflow signal F(t) using a Butterworth low-pass filter, whose transfer function is:

[0062] ,

[0063] in, H It is the frequency response function of the filter. s It is the Laplace operator. ω c It is the cutoff frequency, with a value of 2. π ×2rad / s (corresponding to a cutoff frequency of 2Hz). n This is the filter order, with a value of 2. After filtering, the denoised bioelectric signal is obtained. E filtered ( t ) and respiratory airflow signals F filtered ( t ).

[0064] The control chip calculates the instantaneous rate of change after denoising and the bioelectrical signal after denoising. E filtered ( t The instantaneous rate of change Δ E ( t ):

[0065] ,

[0066] Where, Δ t This is the sampling time interval, with a value of 0.02s (corresponding to a sampling frequency of 50Hz).

[0067] Calculate the denoised respiratory airflow signal F filtered ( t The instantaneous rate of change Δ F ( t ):

[0068] .

[0069] The control chip makes decisions and sets a time window. T The value is 1 second. Within this time window, the instantaneous rate of change Δ of the bioelectric signal is calculated. E ( t mean :

[0070] ,

[0071] i Indicates the index of the discrete sampling time within the time window, where,

[0072] ,

[0073] N It is a time window T The number of sampling points within;

[0074] In the same time window T Internal calculation of the instantaneous rate of change Δ of respiratory airflow signal F ( t mean :

[0075] ,

[0076] according to and Make a decision based on the value:

[0077] like >0.6 (empirical threshold) and If the value is greater than 0.8 (empirical threshold), an inflation command is issued to control the inflation / deflation control module to inflate the contraction bladder. The above empirical threshold is an example and can be adjusted in actual applications.

[0078] like <-0.6 (empirical threshold) and If the value is less than -0.8 (empirical threshold), a deflation command is issued to control the inflation / deflation control module to deflate the contraction bladder. The above empirical threshold is an example and can be adjusted in actual applications.

[0079] Otherwise, issue a hold command to maintain the current state of the contraction sac.

[0080] In summary, the combined verification of bioelectrical signals and respiratory airflow signals reduces the risk of false triggering. Inflation / deflation is triggered only when both signals exceed the threshold simultaneously, avoiding misoperation caused by single signal noise (such as muscle tremors or respiratory fluctuations). Judgment is based on instantaneous rate of change rather than absolute value to avoid sudden changes in systolic pressure (such as sudden inflation causing a feeling of pressure in the neck).

[0081] Example 4

[0082] Embodiment 4 of the present invention is a further improvement based on Embodiment 1, Embodiment 2, or Embodiment 3, such as... Figure 6As shown, the inter-leg support pad 5 includes an inter-leg angle adjustment assembly 51. The inter-leg angle adjustment assembly 51 includes a fixed shaft 510, a first abutment piece 511, a second abutment piece 512, a support piece 513, a support tube 514, and a skin cover. The fixed shaft 510 is fixedly mounted on the operating table 6. The first abutment piece 511 and the second abutment piece 512 are both rotatably mounted on the fixed shaft 510. The support piece 513 is fixedly mounted on the fixed shaft 510. The support tube 514 connects the first abutment piece 511 and the support piece 513 with the second abutment piece 512 and the support piece 513. The first abutment piece 511 and the second abutment piece 512 abut against the patient's thigh and calf, respectively. The skin cover covers the outside of the first abutment piece 511, the second abutment piece 512, the support piece 513, and the support tube 514.

[0083] The fixed shaft 510 is fixed to the operating table 6, providing a stable mounting reference for other components. The fixed shaft 510 serves as the rotation axis for the first abutment piece 511 and the second abutment piece 512, allowing them to rotate independently and achieve differentiated angle adjustments between the thigh and lower leg. The first abutment piece 511 adjusts the angle between the thigh and torso (e.g., hip flexion angle) by rotation, while the second abutment piece 512 adjusts the angle between the lower leg and thigh (e.g., knee flexion angle) by rotation. Independent rotation of both pieces enables coordinated adjustment of the hip and knee joints, thus adapting to different examination positions. Direct contact between the first abutment piece 511 or the second abutment piece 512 and the limb evenly transmits the adjustment force to the muscle tissue, preventing excessive pressure on bony prominences (e.g., the tibial tuberosity). The support piece 513 is fixed to the fixed shaft 510, serving as the mounting base for the support tube 514, converting the expansion force of the support tube 514 into pressure on the first abutment piece. The thrust of the first abutment piece 511 or the second abutment piece 512; the support bladder tube 514 expands through inflation, pushing the abutment piece to rotate. In addition, by controlling the difference in inflation volume between the two support bladder tubes 514, asymmetrical adjustment can be achieved (such as adjusting only the knee joint angle without affecting the hip joint); the skin cover wraps around the entire component, isolating the patient's skin from the mechanical parts to prevent cross-infection. The skin cover can be made of flexible material (such as medical silicone or PU coated fabric) to adapt to the dynamic deformation of the first abutment piece 511, the second abutment piece 512 and the support bladder tube 514, avoiding friction damage; the leg angle adjustment component 51 uses the rigid support of the fixed shaft 510 and the support piece 513, and works with the first abutment piece 511 or the second abutment piece 512 to drive the angle adjustment under the flexible inflation of the support bladder tube 514, realizing the adjustment of lower limb posture control. Furthermore, by shrinking the bladder, the pressure on the body surface is evenly distributed, optimizing patient comfort and medical staff operation experience.

[0084] One specific embodiment of the present invention is as follows: Figure 6As shown, the inter-leg angle adjustment assembly 51 also includes a leg connecting strap 515, which is tied to the first abutment piece 511 and the second abutment piece 512 to bind the thigh and calf to the first abutment piece 511 and the second abutment piece 512. The leg connecting strap 515 can be made of an elastic material, such as silicone. The elastic fixation keeps the patient's thigh and calf in contact with the surface of the abutment piece, preventing the angle displacement caused by limb slippage during the adjustment process.

[0085] One specific embodiment of the present invention is as follows: Figure 7 As shown, the interleg angle adjustment assembly 51 also includes a pre-tension spring 516, which is connected between the first abutment piece 511 and the second abutment piece 512 and the support piece 513 to provide an initial pre-tension force. The pre-tension spring 516 generates an initial pre-tension force when the assembly is unloaded. This force can offset part of the impact load when the limb is placed, avoiding patient discomfort or equipment damage caused by rigid contact. At the same time, the initial pre-tension force also provides a stable initial reference pressure for the subsequent inflation adjustment of the flexible contraction balloon. During the adjustment process, the pre-tension spring 516 can suppress the slight displacement of the first abutment piece 511 and the second abutment piece 512 caused by external force through continuous elastic tension, so that the interleg angle remains dynamically stable, which is especially suitable for examination or surgical scenarios that require maintaining a fixed position for a long time.

[0086] Based on this, the support tube 514 is arranged on one or both sides of the pretension spring 516; by arranging the support tube 514 on one or both sides of the pretension spring 516, the first abutment piece 511 and the second abutment piece 512 are flexibly driven under the action of the pretension force, which not only retains the flexibility of stepless adjustment of the contraction bladder, but also eliminates the soft support defects that are prone to occur in traditional contraction bladder systems through the initial pretension force of the spring, thereby improving the stability and adaptability of the inter-leg angle adjustment component 51.

[0087] One specific embodiment of the present invention is as follows: Figure 7 As shown, the leg angle adjustment assembly 51 also includes a flexible support rib 517. The flexible support rib 517 is used to connect the edges of the first abutment piece 511, the second abutment piece 512 and the support piece 513. For example, the flexible support rib 517 can be a TPU tube. The flexible support rib 517 is connected in an arc shape or mesh shape to the edge area of ​​the first abutment piece 511, the second abutment piece 512 and the support piece 513 to form a flexible edge, which not only enhances the overall torsional stiffness of the assembly, but also avoids stress concentration caused by traditional rigid connection.

[0088] Example 5

[0089] Embodiment 5 of the present invention is a further improvement based on Embodiments 1, 2, 3, or 4. The body positioning device for endoscopic procedures further includes a flexible compensation component 8, such as... Figure 8As shown, the bottom end of the flexible compensation component 8 is set on the operating table 6, and the bottom end of the flexible compensation component 8 is placed under the patient's buttocks. The flexible compensation component 8 includes a support plate 81, a bearing plate 82, a first support spring 83, a second support spring 84, and a sliding plate 85. The first support spring 83 is connected between the support plate 81 and the sliding plate 85, and the second support spring 84 is connected between the sliding plate 85 and the bearing plate 82.

[0090] The support plate 81 is fixed to the operating table 6, serving as the mechanical reference plane for the entire assembly. The first support spring 83 provides initial preload, eliminating the assembly gap between the support plate 81 and the sliding plate 85. The sliding plate 85, connected to the first support spring 83, can move vertically and horizontally relative to the support plate 81. The bearing plate 82 directly contacts the patient's buttocks, and with the help of the second support spring 84, the bearing plate 82 can absorb pressure fluctuations in the patient's buttocks. Through the arrangement of the support plate 81, bearing plate 82, first support spring 83, second support spring 84, and sliding plate 85, adaptive compensation for the patient's body position is achieved. When the patient experiences slight movement of the buttocks due to breathing or examination procedures, the first support spring 83 and the second support spring 84 offset the vertical impact force in real time through elastic deformation, causing a lag in the displacement of the bearing plate 82, preventing body position deviation from affecting the examination field of view. In addition, it also enables the patient's buttocks to have dynamic adjustment capabilities in vertical, horizontal, and tilt directions. The first support spring 83 and the second support spring 84 are used to achieve this. Compression allows the flexible compensation component 8 to provide flexible support according to the patient's weight and to have a certain displacement in the vertical direction relative to the operating table 6. With the help of the first support spring 83, the second support spring 84 and the sliding plate 85 between them, the support plate 82 can be displaced in the horizontal direction relative to the support plate 81. Thus, when the examination operation (such as endoscopic insertion) moves the patient's body, the support plate 82 can follow the hip displacement in real time, avoiding the body distortion caused by fixed constraints. Similarly, with the help of the first support spring 83 and the second support spring 84 between them, the support plate 82 can rotate a certain angle relative to the support plate 81. Thus, it can adapt to the pelvic shape of patients with different body types (such as narrower male pelvis and wider female pelvis). The flexible compensation component 8 allows the patient to make slight movements due to breathing or adjusting posture (such as posterior displacement caused by changes in lumbar lordosis), avoiding the discomfort caused by the forced restraint of the body in traditional fixation methods, and improving the comfort of the examination.

[0091] One specific embodiment of the present invention is as follows: Figure 9As shown, the flexible compensation component 8 also includes an elastic band 86. The middle end of the elastic band 86 is fixed to the edge of the sliding plate 85, the top end of the elastic band 86 is fixed to the bearing plate 82, and the bottom end of the elastic band 86 is fixed to the support plate 81. The elastic band 86 is made of silicone-coated Kevlar fiber. By connecting the support plate 81, the sliding plate 85, and the bearing plate 82 with the elastic band 86, excessive sliding of the bearing plate 82 relative to the support plate 81 can be prevented, thereby reducing spring fatigue damage and improving the service life of the flexible compensation component 8.

[0092] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A body positioning device for endoscopic examination procedures, characterized in that, The system includes a head and neck support pad, a jaw frame, shoulder support pads, a lumbar support pad, and an operating table. The head and neck support pad, jaw frame, shoulder support pad, and lumbar support pad are all mounted on the operating table. The head and neck support pad is positioned below the patient's head and neck; the jaw frame is positioned on the patient's jaw; the shoulder support pad is positioned on the patient's shoulders and connected to the operating table; and the lumbar support pad supports the patient's lumbosacral region. The jaw frame includes a frame body, a contraction sac, and a first connecting strap. The contraction sac is mounted on the jaw frame body, and the first connecting strap is attached to both ends of the jaw frame body. The system also includes a controller, which includes a control chip and bioelectric sensors and airflow sensors connected to the control chip. The system includes sensors and an inflation / deflation control module. A bioelectric sensor is attached to the skin around the patient's neck and airway to detect the bioelectrical activity of the neck muscles and converts the bioelectrical signal into an electrical signal, which is then transmitted to the control chip. An airflow sensor is installed at the patient's nostrils to monitor the flow rate and velocity of airflow during respiration in real time and transmits the airflow data to the control chip. Based on the bioelectrical signal data and the flow rate and velocity of the patient's respiratory airflow, the control chip drives the inflation / deflation control module to inflate or deflate the cuff. The control chip uses a Butterworth low-pass filter to filter the bioelectrical signal E(t) and the respiratory airflow signal F(t). ； H is the frequency response function of the filter, s is the Laplace operator, and ω c The cutoff frequency is 2π × 2 rad / s, and n is the filter order, which is 2. After filtering, the denoised bioelectric signal is obtained. E filtered ( t ) and respiratory airflow signals F filtered ( t ); Calculate the instantaneous rates of change ΔE(t) and ΔF(t) after denoising, where Δt is the sampling time interval: ； ； The control chip makes decisions, with T being a time window, within which the mean of the instantaneous rate of change of the bioelectric signal ΔE(t) is calculated. : ； i represents the index of the discrete sampling time within the time window. N It is a time window T The number of sampling points within; Calculate the mean of the instantaneous rate of change of respiratory airflow signal ΔF(t). : ； according to and The value is used to make a decision on whether to inflate or deflate the contraction bladder; like and At the same time, if the pressure exceeds the corresponding empirical threshold, the contraction sac is inflated; like and At the same time, if the pressure is below the corresponding empirical threshold, the systolic bladder is deflated.

2. The body positioning device for endoscopic examination according to claim 1, characterized in that, It also includes a jaw frame connector, which includes a slot and a rod. The slot is located on the head and neck support pad, and the rod is disposed on the jaw frame. The rod can be inserted into the slot and can be pulled out of the slot.

3. The body positioning device for endoscopic examination according to claim 1, characterized in that, The shoulder support pad includes a first shoulder pad unit and a second shoulder pad unit that are connected to each other. The first shoulder pad unit is placed in front of the shoulder, and the second shoulder pad unit is placed behind the shoulder.

4. The body positioning device for endoscopic examination according to claim 3, characterized in that, The shoulder support pad also includes a second connecting strap, which connects the first and second shoulder pad units to the operating bed.

5. The body positioning device for endoscopic examination according to claim 3, characterized in that, The shoulder pad also includes a unit distance adjustment element connected between the first shoulder pad unit and the second shoulder pad unit to adjust the distance between the first shoulder pad unit and the second shoulder pad unit.

6. The body positioning device for endoscopic examination according to claim 1, characterized in that, The lumbar support pad includes a vertical board and an adjusting insert. The vertical board is set on the operating table, and the adjusting insert is close to the vertical board to abut against the patient's lumbosacral region.

7. The body positioning device for endoscopic examination according to claim 6, characterized in that, The upright plate is mounted on the operating bed and can be moved around on the operating bed.

8. The body positioning device for endoscopic examination according to claim 6, characterized in that, There are multiple inserts available.

9. The body positioning device for endoscopic examination according to claim 1, characterized in that, The head and neck support pad can be adjusted in position on the operating table.

10. The body positioning device for endoscopic examination according to claim 1, characterized in that, The operating bed includes an operating bed body and a flexible pad layer disposed on the operating bed body.

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