Newborn suffocation resuscitation head position fixing device

Abstract

The invention provides a neonatal suffocation resuscitation head position fixing device, and belongs to the technical field of medical instruments.The neonatal suffocation resuscitation head position fixing device comprises a bearing platform used for bearing a neonatal, the bearing platform comprises a first bearing part matched with the head of the neonatal, a through strip-shaped opening is formed in the surface of the first bearing part, and a limiting device is arranged in the strip-shaped opening; the limiting device comprises a limiting sliding block in sliding connection with the strip-shaped opening, a limiting strip is arranged at the upper end of the limiting sliding block, and the first end of the limiting strip is detachably connected with the upper end of the limiting sliding block. According to the device, the effective limiting area can be increased, the device can be better attached to the head, gaps are avoided, the stability of the head in the suffocation resuscitation process is guaranteed, the limiting strips can be adaptively adjusted along with the heads of different newborns in the tensioning process, adaptive adjustment can be automatically carried out, related limiting structures do not need to be replaced, and the use is convenient. And the adaptability and the convenience of the whole device are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a head-position fixation device for neonatal asphyxia resuscitation. Background Technology

[0002] During the birth process, newborns may be unable to breathe due to intrauterine hypoxia, obstructed breathing at birth, or congenital respiratory insufficiency. In such cases, medical staff need to immediately take emergency measures to resuscitate the newborn from asphyxia.

[0003] The purpose of neonatal resuscitation is to restore the newborn's cardiopulmonary function to normal. Before the procedure, the newborn needs to be placed on the operating platform for cardiopulmonary resuscitation and removal of foreign objects from the mouth. During the above procedures, it is necessary to keep the newborn's head relatively stable to avoid excessive head shaking that could cause secondary injury to the newborn's head and neck, and to prevent accidents from occurring due to instability during the resuscitation procedure.

[0004] Patent document CN103654962B discloses a neonatal asphyxia resuscitation head positioning fixation device, including a head pad, neck pad, shoulder pad, body pad, and protective wings. It fixes and limits the newborn's head by designing a U-shaped limiting area to ensure the relative stability of the newborn's head. However, the space occupied on both sides of the above structure is relatively large, which partially obstructs the newborn's head and is not conducive to operation by medical staff. At the same time, different newborns have different head sizes, and a single-sized limiting area is difficult to fix heads of different sizes well, resulting in poor limiting adaptability. In addition, there are also problems such as small effective limiting area and poor limiting stability. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a neonatal asphyxia resuscitation head positioning fixation device. This invention can increase the effective limiting area, better fit the head, avoid gaps, and ensure the stability of the head during asphyxia resuscitation. Furthermore, during tightening, the limiting strip can adaptively adjust to different neonatal heads, automatically adapting without requiring replacement of the relevant limiting structure, thus improving the overall adaptability and convenience of the device.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: A neonatal asphyxia resuscitation head-position fixation device includes a support platform for supporting a newborn. The support platform includes a first support portion adapted to the newborn's head. A through-type strip opening is formed on the surface of the first support portion. A limiting device is provided within the strip opening. The limiting device includes a limiting slider slidably connected to the strip opening. A limiting strip is provided at the upper end of the limiting slider. A first end of the limiting strip is detachably connected to the upper end of the limiting slider, and an adjustment component is provided between the second end and the limiting slider. The tension state of the limiting strip is controlled by the adjustment component. The limiting strip includes a flexible strip on the inner side and a variable strip on the outer side. A strip-shaped receiving chamber is formed inside the variable strip. The receiving chamber contains an electrorheological fluid and is electrically connected to a conductive component. When the limiting strip is controlled to be in a taut state by the adjustment component, the electrorheological fluid is controlled to be in a conductive state by the conductive component. The electrorheological fluid changes from a liquid state to a solid state, thereby controlling the limiting strip to change from an arc-shaped flexible state to an arc-shaped rigid state.

[0007] Preferably, the limiting strip is provided in two sets, both sets of the limiting strip passing through the strip opening and intersecting below the two limiting strips.

[0008] Preferably, an extrusion assembly is installed on the outside of the limiting slider, the limiting strip passes through the extrusion assembly, the variable strip is elastic, and the extrusion assembly extrudes the electrorheological fluid to the outside for concentration.

[0009] Preferably, the extrusion assembly includes a first extrusion roller and a second extrusion roller, with an extrusion gap formed between the first extrusion roller and the second extrusion roller, and the limiting strip passes through the extrusion gap.

[0010] Preferably, the adjusting component is a winding component, which is located at the bottom of the limiting slider and winds the limiting strip a predetermined number of turns.

[0011] Preferably, the winding assembly includes a winding motor and a winding sleeve fixed to the end of the output shaft of the winding motor, and the second end of the limiting strip is fixedly connected to the winding sleeve.

[0012] Preferably, the adjusting component is a telescopic component, which is located at the bottom of the limiting slider and is inclined to push the limiting strip downwards by a predetermined length.

[0013] Preferably, the telescopic assembly includes a telescopic rod and a positioning plate fixedly connected to the telescopic end of the telescopic rod, and the limiting strip is fixedly connected to the positioning plate.

[0014] Preferably, a tension sensor is provided between the adjustment component and the limiting strip. The tension sensor is electrically connected to the conductive component. When the tension sensor detects that the tension exceeds a set threshold, it sends a signal to the conductive component to control the electro-hydraulic conductivity to change from a liquid state to a solid state, thereby controlling the limiting strip to change from an arc-shaped flexible state to an arc-shaped rigid state.

[0015] Preferably, an optical detection element is provided at the upper end of the limiting slider, and a position control component is provided between the limiting slider and the strip opening, and the position control component is electrically connected to the optical detection element.

[0016] The beneficial effects of this invention are as follows: Compared with existing technologies, the above structural design allows the limiting strip to form an arc-shaped limiting area on the outer side of the head, resulting in a larger effective limiting area. When pulled, the limiting strip remains flexible, allowing for better conformity to the head and preventing gaps. During the limiting process, the limiting strip becomes rigid, providing better support and limiting of the head without requiring excessive tension, ensuring head stability during asphyxiation resuscitation. Furthermore, limiting the head with the limiting strip eliminates the need for a U-shaped groove structure in the first support section and airbag support, resulting in a smaller footprint, a larger operating area, and easier operation for medical personnel. During tightening, the limiting strip can adaptively adjust to different newborns' heads, automatically adapting without requiring replacement of the limiting structure, thus improving the overall adaptability and convenience of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of embodiment 1 of the adjustment component of the present invention.

[0019] Figure 3 For the present invention Figure 2 A schematic diagram of the main structure.

[0020] Figure 4 For the present invention Figure 2 A side view structural diagram.

[0021] Figure 5 For the present invention Figure 4 A schematic diagram of the AA-direction cross-section structure.

[0022] Figure 6 This is a three-dimensional structural diagram of embodiment 2 of the adjustment component of the present invention.

[0023] Figure 7 For the present invention Figure 6 A schematic diagram of the main structure.

[0024] Figure 8 For the present invention Figure 6 A side view structural diagram.

[0025] Figure 9 For the present invention Figure 7 A magnified structural diagram at point B.

[0026] Figure 10 This is a schematic diagram of the internal structure of the limiting strip of the present invention.

[0027] In the diagram: 110, body part; 120, head; 200, support platform; 210, first support part; 211, pad; 212, strip opening; 213, connecting shaft; 220, second support part; 300, limiting device; 310, limiting strip; 311, flexible strip; 312, variable strip; 313, receiving chamber; 3101, strip one; 3102, strip two; 320, winding assembly; 321, winding motor; 322, winding sleeve; 330, limiting slider; 340, telescopic assembly; 341, telescopic rod; 342, positioning plate; 350, extrusion assembly; 351, first extrusion roller; 352, second extrusion roller. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] To address the problems mentioned in the background art, see Appendix Figure 1 -Appendix Figure 10 A neonatal asphyxia resuscitation head positioning device includes a support platform 200 for supporting the newborn. The support platform 200 includes a first support part 210 adapted to the newborn's head 120. The surface of the first support part 210 has a through strip opening 212. A limiting device 300 is provided in the strip opening 212. The limiting device 300 limits the newborn's head 120, which facilitates operation on the newborn during asphyxia resuscitation, ensures the stability of the head 120 during asphyxia resuscitation, and ensures the normal and stable progress of asphyxia resuscitation.

[0030] A pad 211 is also provided at the upper end of the first support part 210. The pad 211 can be adapted to the neck of the newborn. During the asphyxia resuscitation process, the head 120 can be controlled to be in a downward tilted state to ensure that the airway is open. At the same time, the strip opening 212 here can be opened to a predetermined width to accommodate part of the head 120 for the head 120 to tilt. The pad 211 and the strip opening 212 are connected by an arc-shaped soft pouch, which fits the bottom of the head 120.

[0031] The support platform 200 also includes a second support part 220, which is rotatably connected to the first support part 210 via a connecting shaft 213. During asphyxia resuscitation, the newborn is first placed face up on the surface of the support platform 200, with the head 120 facing the first support part 210 and the body 110 facing the second support part 220. After the position is accurate and stable, the head 120 of the newborn is fixed by the limiting device 300. The body of the newborn can be fixed as needed, either by medical staff holding it in place or by using an airbag clamp or a baffle to limit it.

[0032] After the newborn's head 120 and body 110 are secured, the newborn is given resuscitation. First, check for foreign objects in the newborn's mouth. If a foreign object is present, remove it and then perform cardiopulmonary resuscitation. After successful resuscitation, some newborns may expel some liquid from their mouths. At this time, medical staff need to deflect the first support part 210 at a predetermined angle to control the newborn's head to tilt outward. The liquid expelled from the newborn's mouth is then suctioned out using a suction tube or negative pressure suction device to prevent foreign objects remaining in the mouth from causing the newborn to choke or even suffocate again.

[0033] The first support portion 210 and the second support portion 220 are placed on a movable platform and can be moved to a predetermined position. The bottom of the first support portion 210 is suspended, which facilitates the first support portion 210 to deflect at a predetermined angle. A limit component is provided between the first support portion 210 and the second support portion 220 to prevent the first support portion 210 from deflecting too much and affecting the normal placement of the newborn's head. At the same time, the first support portion 210 and the second support portion 220 can be limited by a damping pivot or a locking device to ensure the stability of the first support portion 210 in the normal state.

[0034] Specifically, the limiting device 300 includes a limiting slider 330 that is slidably connected to the strip opening 212. A limiting strip 310 is provided at the upper end of the limiting slider 330. The first end of the limiting strip 310 is detachably connected to the upper end of the limiting slider 330, and an adjustment component is provided between the second end and the limiting slider 330. The tension of the limiting strip 310 is controlled by the adjustment component. The limiting strip 310 can form a strip-shaped arc-shaped limiting area on the outside of the head 120. The tension of the limiting strip 310 can be adjusted according to the size of the head 120.

[0035] Specifically, after the head 120 is placed in the predetermined position, the first end of the limiting strip 310 is wrapped around the head 120 from above and fixed to the upper end of the limiting slider 330. At this time, the limiting strip 310 forms a large strip-shaped limiting area on the outside of the head 120. After the limiting strip 310 is fixed and located in the predetermined position on the outside of the head 120, the limiting strip 310 is pulled tight by the adjusting component. During this process, the length of the limiting strip 310 above the head 120 gradually decreases, and the strip-shaped limiting area formed by the limiting strip 310 gradually shrinks, finally achieving the locking and limiting of the head 120. At this time, the bottom of the head 120 is in the limiting state of the first bearing part 210, and the top of the head 120 is in the limiting state of the limiting strip 310, finally achieving the stable limiting of the head 120.

[0036] It should be noted that during the process of the adjustment component controlling the tightening of the limiting strip 310, medical staff manually limit the limiting strip 310 to ensure the accuracy and stability of the final limiting position of the limiting strip 310, avoid the limiting area of ​​the limiting strip 310 from overlapping with the newborn's eyes and mouth, avoid causing secondary injury to the newborn, and ensure the accuracy and stability of the final limiting position, which facilitates subsequent asphyxia resuscitation.

[0037] Furthermore, to ensure the strength and stability of the limiting strip 310 after the limiting reduction, and to prevent excessive shaking of the limiting strip 310, while also preventing the limiting strip 310 from being pulled too tightly and causing secondary injury to the newborn's head area 120, the limiting strip 310 here includes a flexible strip 311 located on the inner side and a variable strip 312 located on the outer side. The softness and hardness of the variable strip 312 can be adjusted. During the pulling process, the variable strip 312 is in a flexible state and can move flexibly in sync with the flexible strip 311, while also better conforming to the head area 120, ensuring the accurate limiting of the limiting strip 310. And fit; after adjustment, control the variable strip 312 to become rigid. The variable strip 312 in the rigid state can better support and limit the head 120 on the outside without excessively tightening the limiting strip 310, avoiding excessive pressure on the newborn's head 120. At the same time, the rigid variable strip 312 can work with the flexible strip 311 to better limit and support the head 120, preventing the head 120 from shaking during asphyxiation resuscitation. The flexible strip 311 is located on the side close to the head 120, which can play a buffering and supporting role, further avoiding damage to the head 120.

[0038] In order to achieve variable adjustment of the soft and hard states of the variable strip 312, a strip-shaped receiving chamber 313 is formed inside the variable strip 312. The receiving chamber 313 contains an electrorheological fluid and is electrically connected to a conductive component. The electrorheological fluid is a suspension that can become solid in a conductive state and become liquid in a de-energized state.

[0039] Specifically, after the limiting strip 310 is taut by adjusting the component, the electrorheological fluid is made conductive by the conductive component. The electrorheological fluid changes from a liquid state to a solid state, thereby controlling the limiting strip 310 to change from an arc-shaped flexible state to an arc-shaped rigid state. The limiting strip 310 in the flexible state can adaptively adjust with the surface of the head 120 and can completely fit the surface of the head 120, avoiding the phenomenon of not being able to bend effectively or fit effectively due to a purely rigid material. The limiting strip 310 in the rigid state can form a rigid limiting structure above the head 120, which plays an excellent supporting role and prevents the head 120 from shaking.

[0040] In summary, through the above structural design, the limiting strip 310 can form an arc-shaped limiting area on the outside of the head 120, resulting in a larger effective limiting area. When pulled, the limiting strip 310 is flexible, allowing it to better fit the head 120 and avoid gaps. During the limiting process, the limiting strip 310 becomes rigid, providing better support and limiting of the head 120 without excessive tension, ensuring the stability of the head 120 during asphyxiation resuscitation. At the same time, limiting the head 120 with the limiting strip 310 eliminates the need for the first bearing part 210 to be a U-shaped groove structure and for airbag support, resulting in a smaller footprint, a larger operating area, and easier operation for medical personnel. Furthermore, during tensioning, the limiting strip 310 can adaptively adjust to different newborns' heads 120, automatically adapting without requiring replacement of the limiting structure, thus improving the overall adaptability and convenience of the device.

[0041] Furthermore, two sets of limiting strips 310 are provided. Both sets of limiting strips 310 pass through the strip-shaped opening 212 and intersect below. The two sets of limiting strips 310 can be strip one 3101 and strip two 3102, respectively. The two sets of limiting strips 310 are made of the same material and serve the same function, limiting the head 120. The difference between the two sets of limiting strips 310 is that the areas they limit are different. (See attached diagram.) Figure 2 The first set of limiting strips 310 can be attached to the tip of the nose of the head 120 for limiting, and the second set of limiting strips 310 can be attached to the forehead of the head 120 for limiting. By increasing the limiting area, the head 120 of the newborn can be more effectively limited, further ensuring the accuracy and stability of the head 120 limiting.

[0042] The two sets of limiting strips 310 are spaced further apart in the upper part of the head 120 and spaced further apart below the head 120, which can form an attachment. Figure 4The triangular limiting area shown has two sets of limiting bars 310 that can apply forces in different directions to the head 120, further restricting the degrees of freedom of the head 120 and preventing the head 120 from moving along the direction of the arc-shaped opening of the limiting bar 310 (see attached diagram). Figure 4 (Left and right directions) further ensured the stability of the head during the asphyxiation resuscitation process.

[0043] Furthermore, an extrusion assembly 350 is installed on the outside of the limiting slider 330. The limiting strip 310 passes through the extrusion assembly 350. The variable strip 312 is elastic. The extrusion assembly 350 extrudes the electrorheological fluid to the outside and concentrates it. By setting the extrusion assembly 350, the electrorheological fluid in the limiting strip 310 can be concentrated, avoiding the phenomenon of segmentation and breakage of the electrorheological fluid inside the limiting strip 310 due to pressure during the pulling process of the limiting strip 310, and preventing the conductive component from failing to produce a conductive curing effect on all the electrorheological fluid.

[0044] As the limiting strip 310 passes through the extrusion assembly 350, the limiting strip 310 located above the extrusion assembly 350 gradually expands. The limiting strip 310 here is made of wear-resistant and insulating material to prevent the limiting strip 310 from being damaged by extrusion, which could lead to electrochemical overflow and cause medical accidents. At the same time, the limiting strip 310 needs to be inspected and replaced regularly to prevent material aging from causing damage and affecting the final fixed limiting effect.

[0045] Specifically, the extrusion assembly 350 includes a first extrusion roller 351 and a second extrusion roller 352, with an extrusion gap formed between them. A limiting strip 310 passes through the extrusion gap. The first extrusion roller 351 and the second extrusion roller 352 can be either automatic or non-powered rollers. During the movement of the limiting strip 310, the first extrusion roller 351 and the second extrusion roller 352 can be positioned on both sides to extrude the two sides of the limiting strip 310. The limiting strip 310 has a flat cross-section, which can cooperate with the first extrusion roller 351 and the second extrusion roller 352 on both sides to ensure accurate and effective extrusion, so that most of the electrorheological fluid can be concentrated on the outside.

[0046] Meanwhile, after the electrorheological fluid conducts electricity, the first extrusion roller 351 and the second extrusion roller 352 can support and limit the limiting strip 310, which can further ensure the accuracy and stability of the limiting strip 310.

[0047] It should be noted that both ends of the limiting strip 310 are located directly below the head 120, so as to form a more fitting arc-shaped limiting area on the outside of the head 120, which can better fit the head 120 and ensure the accuracy and stability of the head 120's limiting.

[0048] As an embodiment of the adjustment component, the adjustment component is a winding component 320. The winding component 320 is located at the bottom of the limiting slider 330 and winds the limiting strip 310 a predetermined number of turns. By winding, the second end of the limiting strip 310 can be wound and limited to achieve the pulling and tightening of the limiting strip 310, and finally achieve the adjustment of the tension state of the limiting strip 310.

[0049] Specifically, the winding assembly 320 includes a winding motor 321 and a winding sleeve 322 fixed to the end of the output shaft of the winding motor 321. The second end of the limiting strip 310 is fixedly connected to the winding sleeve 322. A torque detection element is also provided at the winding motor 321. The torque detection element can detect the torque of the winding sleeve 322, thereby adjusting the tension state of the limiting strip 310. When the torque detected by the torque detection element exceeds the set threshold, an electrical signal is sent to the winding motor 321 to control the winding motor 321 to stop rotating and lock it, so as to ensure the stability of the winding sleeve 322 and the limiting strip 310.

[0050] Simultaneously, after the winding motor 321 stops rotating, it sends an electrical signal to the conductive component, adjusting the internal electrochemical conductivity of the limiting strip 310 from a liquid state to a solid state, thereby controlling the limiting strip 310 to change from an arc-shaped flexible state to an arc-shaped rigid state. Of course, the conductive component here can also be equipped with a separate electronic control switch. When medical staff find that the limiting strip 310 is deviating from its limit, they can readjust the limiting strip 310 to a flexible state, fine-tune its position, and then readjust the limiting strip 310 to a rigid state.

[0051] As an embodiment of the adjustment component, the adjustment component is a telescopic component 340. The telescopic component 340 is located at the bottom of the limiting slider 330 and is arranged at an angle. The limiting bar 310 is pushed down by a predetermined length through the telescopic component 340. The tension state of the limiting bar 310 can also be adjusted by the telescopic component 340, so as to realize the adaptive adjustment of the arc-shaped limiting area of ​​the limiting bar 310.

[0052] By tilting the telescopic component 340, it is also possible to better control the limiting strip 310 to be in a state of fitting and conforming with the head 120, increase the contact area of ​​the limiting strip 310, and enhance the stability of the limiting strip 310 in limiting the head 120.

[0053] Specifically, the telescopic assembly 340 includes a telescopic rod 341 and a positioning plate 342 fixedly connected to the telescopic end of the telescopic rod 341. The limiting strip 310 is fixedly connected to the positioning plate 342. The telescopic rod 341 can be an electrically controlled telescopic rod. The telescopic rod 341 pushes the positioning plate 342 to move outward, thereby limiting the pulling of the limiting strip 310 fixed to the positioning plate 342 and achieving automatic adjustment.

[0054] Furthermore, a tension sensor is provided between the adjusting component and the limiting strip 310. The tension sensor is electrically connected to the conductive component. When the tension sensor detects that the tension exceeds the set threshold, it sends a signal to the conductive component to control the electro-hydraulic conductivity to change from a liquid state to a solid state, thereby controlling the limiting strip 310 to change from an arc-shaped flexible state to an arc-shaped rigid state.

[0055] The aforementioned tension sensor has the same function as the aforementioned torque detection element. However, the tension sensor here has a wider range of applications. It is not only suitable for the automatic detection and conductive control of the winding assembly 320, but also for the automatic detection and conductive control of the tension of the telescopic assembly 340. It realizes the automatic adjustment of the state of the limit bar 310 without the need for manual adjustment by medical staff, which simplifies the operation steps of medical staff, shortens the operation time of asphyxiation resuscitation, and improves the operation efficiency of medical staff.

[0056] Furthermore, an optical detection element is provided at the upper end of the limiting slider 330, and a position control component is provided between the limiting slider 330 and the strip opening 212. The position control component is electrically connected to the optical detection element. The position control component can be selected as an electric track or an electric telescopic rod. The position control component can automatically push the limiting slider 330 to a predetermined position and can be adjusted according to the placement position of the head 120. Here, the optical detection element can pass through the strip opening 212 to scan the area above, detect the range of the head 120, determine which area the head 120 is in, and finally push the limiting slider 330 in the strip opening 212 to automatically move to the predetermined position, thereby realizing automatic adjustment and control.

[0057] The above structural design further reduces the operational burden on medical staff. Medical staff only need to place the newborn within the predetermined range above the strip opening 212. Subsequently, the limiting slider 330 will automatically move to the predetermined position. Medical staff can then pull out the first end of the limiting strip 310, pass it over the head 120, and re-fix it to complete the subsequent tightening and limiting.

[0058] The first end of the limiting strip 310 can be equipped with an existing locking structure to enable quick disassembly and adjustment of the limiting strip 310; the above structure is prior art and can be selected by those skilled in the art as needed.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A neonatal asphyxia resuscitation head-position fixation device, comprising a support platform (200) for supporting a newborn, said support platform (200) including a first support portion (210) adapted to the newborn's head (120), characterized in that: The first bearing part (210) has a through strip opening (212) on its surface. A limiting device (300) is provided in the strip opening (212). The limiting device (300) includes a limiting slider (330) that is slidably connected to the strip opening (212). A limiting strip (310) is provided at the upper end of the limiting slider (330). The first end of the limiting strip (310) is detachably connected to the upper end of the limiting slider (330). An adjustment component is provided between the second end of the limiting strip (310) and the limiting slider (330). The tension of the limiting strip (310) is controlled by the adjustment component. The limiting strip (310) includes a flexible strip (311) located on the inner side and a variable strip (312) located on the outer side. The variable strip (312) forms a strip-shaped receiving chamber (313) inside. The receiving chamber (313) contains an electrorheological fluid and is electrically connected to a conductive component.

2. The neonatal asphyxia resuscitation head position fixation device according to claim 1, characterized in that, The limiting strip (310) is provided in two sets, both sets of the limiting strip (310) pass through the strip opening (212) and the two limiting strips (310) intersect below.

3. The neonatal asphyxia resuscitation head position fixation device according to claim 1, characterized in that, An extrusion assembly (350) is installed on the outside of the limiting slider (330), the limiting strip (310) passes through the extrusion assembly (350), and the variable strip (312) is elastic, which extrudes the electrorheological fluid to the outside through the extrusion assembly (350).

4. The neonatal asphyxia resuscitation head position fixation device according to claim 3, characterized in that, The extrusion assembly (350) includes a first extrusion roller (351) and a second extrusion roller (352), with an extrusion gap formed between the first extrusion roller (351) and the second extrusion roller (352), and the limiting strip (310) passes through the extrusion gap.

5. The neonatal asphyxia resuscitation head position fixation device according to claim 1, characterized in that, The adjustment component is a winding component (320), which is located at the bottom of the limiting slider (330) and winds the limiting strip (310) a predetermined number of turns.

6. The neonatal asphyxia resuscitation head position fixation device according to claim 5, characterized in that, The winding assembly (320) includes a winding motor (321) and a winding sleeve (322) fixed to the end of the output shaft of the winding motor (321). The second end of the limiting strip (310) is fixedly connected to the winding sleeve (322).

7. The neonatal asphyxia resuscitation head position fixation device according to claim 1, characterized in that, The adjustment component is a telescopic component (340), which is located at the bottom of the limiting slider (330) and is inclined. The limiting bar (310) is pushed down by the telescopic component (340) to a predetermined length.

8. The neonatal asphyxia resuscitation head position fixation device according to claim 7, characterized in that, The telescopic assembly (340) includes a telescopic rod (341) and a positioning plate (342) fixedly connected to the telescopic end of the telescopic rod (341), and the limiting strip (310) is fixedly connected to the positioning plate (342).

9. The neonatal asphyxia resuscitation head position fixation device according to any one of claims 1-8, characterized in that, A tension sensor is provided between the adjustment component and the limiting strip (310), and the tension sensor is electrically connected to the conductive component.

10. The neonatal asphyxia resuscitation head position fixation device according to any one of claims 1-8, characterized in that, An optical detection element is provided at the upper end of the limiting slider (330), and a position control component is provided between the limiting slider (330) and the strip opening (212). The position control component is electrically connected to the optical detection element.

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