Early warning device for preventing patient from unplanned automatic extubation

Abstract

The invention relates to an early warning device for preventing a patient from unplanned self-extubation, which belongs to the technical field of medical auxiliary instruments and comprises a base frame, a protection assembly, an early warning unit and a main control unit, the base frame is placed on the neck of a bedridden patient, the two ends of the base frame are connected with the protection assemblies respectively and abut against the lower jawbone of the patient, and the early warning unit is arranged at the cannula position and used for monitoring whether the patient extubates or not; the early warning unit and the protection assembly are both electrically connected with the main control unit, the early warning unit is used for uploading the monitored information about whether the patient has the tube drawing action or not to the main control unit, and the main control unit drives the protection assembly to protect the intubation position according to the information uploaded by the early warning unit; through the arrangement of the sliding rail and the sliding piece, the protection piece can accurately cover the intubation area, once the early warning unit detects the intubation risk, the protection assembly can rapidly respond and automatically start the protection action, manual delay of medical staff is effectively reduced, and the response speed and efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary equipment, and in particular relates to an early warning device for preventing a patient from unplanned self-extubation. Background Art

[0002] In medical environments such as intensive care units (ICUs), patients often experience unplanned self-extubation due to critical conditions, unconsciousness, or anxiety, such as accidental removal of endotracheal tubes, central venous catheters, and indwelling drainage tubes. Such unplanned extubation events may not only lead to interruptions in patient treatment, worsening of the patient's condition, or even endanger their lives, but also increase medical costs and the workload of medical staff. According to multiple studies, the incidence of unplanned extubation in ICUs is high and is often accompanied by adverse consequences, such as failed reintubation and increased risk of infection.

[0003] At present, in order to prevent patients from unplanned self-extubation, medical institutions generally adopt measures including physical restraint (such as the use of restraint belts), strengthening nursing staff patrols, and the use of sedatives. However, these measures have limitations to varying degrees. Physical restraint may cause discomfort, skin damage, and increased psychological pressure on patients; although strengthening patrols can detect and intervene in time, it is difficult to achieve all-weather without omissions; sedatives may cause side effects such as impaired consciousness and respiratory depression in patients.

[0004] In view of the severity of unplanned extubation and the inadequacy of existing preventive measures, it is particularly important to develop an early warning device that can monitor in real time and provide accurate early warning to prevent patients from unplanned self-extubation. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides an early warning device for preventing patients from unplanned self-extubation, thereby solving the problems of untimely and inaccurate protection of the existing early warning devices.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An early warning device for preventing a patient from unplanned self-extubation comprises a base frame, a protective component, an early warning unit and a main control unit; the base frame is placed on the neck of a bedridden patient, the two ends of the base frame are respectively connected to the protective component and abut against the patient's mandible, the early warning unit is arranged at the intubation site, and is used to monitor whether the patient has extubation action; the early warning unit and the protective component are both electrically connected to the main control unit, the early warning unit is used to upload the monitored information of whether the patient has extubation action to the main control unit, and the main control unit drives the protective component to protect the intubation site according to the information uploaded by the early warning unit;

[0008] The protection assembly includes a track, a protection member, a sliding member and a driving assembly; one end of the track is hinged to the base frame; the protection member is fixedly connected to the sliding member, a slide rail is provided on the track, the sliding member is installed on the slide rail, and the driving assembly is used to drive the sliding member to move on the slide rail.

[0009] Preferably, the protective member comprises a plurality of groups of adjusting rods, any group of the adjusting rods is hinged to the adjacent adjusting rods, and any adjusting rod comprises two connecting rods, which are cross-hinged.

[0010] Preferably, the track and the connecting rod are both arc structures.

[0011] Preferably, the driving assembly includes a traction rope, a clockwork spring and a clip; the clockwork spring is installed at the end of the protective member away from the track, one end of the traction rope is fixed to the clockwork spring, and the other end is fixedly connected to the sliding member, the clip is slidably arranged on the end of the track away from the clockwork spring, the clip is electrically connected to the main control unit, and the clip is used to change the protective state of the protective assembly.

[0012] Preferably, the early warning unit includes a receiving sticker and a signal ring; the receiving sticker is adhered to the intubation tube, the signal ring is worn on the patient's finger, the receiving sticker is provided with a chip, the receiving sticker is used to receive the signal of the signal ring and judge the distance between the signal ring and the receiving sticker; the receiving sticker is electrically connected to the main control unit, and the receiving sticker uploads the data of the signal ring to the main control unit.

[0013] Preferably, the base frame includes a base pad and a chin rest; the base pad is placed on the bed and the patient's head and neck are placed on the base pad; the chin rest is an arc structure, symmetrically arranged on the base pad, and is used to fix the chin rest to the patient's lower jaw.

[0014] Preferably, it also includes an eccentric vibration motor, which is arranged on the chin rest on one side and is used to guide the patient's extubation direction; the eccentric vibration motor is electrically connected to the main control unit, and when the main control unit determines that the patient has extubation action, it first sends a start signal to the eccentric vibration motor and then sends a protection instruction to the protection component.

[0015] Preferably, it also includes an alarm unit, which is arranged on the base pad and electrically connected to the main control unit. After the main control unit sends a start signal to the drive component, the drive component triggers the alarm unit to alarm; the alarm unit includes a buzzer and an LED signal light, the buzzer is electrically connected to the main control unit, and the LED signal light is connected to the buzzer.

[0016] The beneficial effects of the present invention are:

[0017] Through the setting of slide rails and sliding parts, the protective parts can accurately cover the intubation area. The hinged setting of the track and the base frame enables the protective component to adapt to the position and angle changes of the heads of different patients, increasing the flexibility and scope of application. Once the early warning unit detects the risk of extubation, the protective component can respond quickly and automatically start the protective action, effectively reducing the human delay of medical staff and improving the response speed and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of the protection state structure of an early warning device provided in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the early warning device in a non-protective state provided in one embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of a top view of the structure of an early warning device provided in one embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the installation structure of a drive assembly provided in one embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a clamping structure of a clamping member provided in one embodiment of the present invention;

[0024] Legend: 1. Base frame; 11. Base pad; 12. Chin rest; 2. Protection assembly; 21. Track; 212. Slide rail; 22. Protection part; 221. Adjustment rod; 23. Sliding part; 3. Drive assembly; 31. Traction rope; 32. Spring; 33. Connector; 4. Early warning unit; 41. Receiving adhesive tape; 42. Signal ring; 6. Eccentric vibration motor; 7. Alarm unit; 71. Buzzer; 72. LED signal light; 8. Locking assembly. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0026] like Figure 1-Figure 5As shown, an early warning device for preventing a patient from unplanned self-extubation comprises a base frame 1, a protective component 2, an early warning unit 4 and a main control unit; the base frame 1 is placed on the neck of a bedridden patient, both ends of the base frame 1 are respectively connected to the protective component 2 and abut against the mandible of the patient, and the early warning unit 4 is arranged at the intubation site for monitoring whether the patient has extubation action; the early warning unit 4 and the protective component 2 are both electrically connected to the main control unit, and the early warning unit 4 is used to upload the monitored information of whether the patient has extubation action to the main control unit, and the main control unit drives the protective component 2 to protect the intubation site according to the information uploaded by the early warning unit 4;

[0027] The protection assembly 2 includes a track 21, a protection member 22, a sliding member 23 and a driving assembly 3; one end of the track 21 is hinged to the base frame 1; the protection member 22 is fixedly connected to the sliding member 23, a slide rail 212 is provided on the track 21, the sliding member 23 is installed on the slide rail 212, and the driving assembly 3 is used to drive the sliding member 23 to move on the slide rail 212;

[0028] Initial state: one end of the track 21 is hinged to the base frame 1, allowing a certain angle to be adjusted to adapt to different positions of the patient's head; a slide rail 212 is provided on the track 21, and the sliding member 23 is installed on the slide rail 212 to ensure smooth movement along the slide rail 212; the protective member 22 is fixedly connected to the sliding member 23 to form a protective unit that can slide on the track 21; early warning triggering: when the early warning unit 4 detects that the patient may have extubation action, it immediately sends a signal to the main control unit; after receiving the signal, the main control unit quickly analyzes and confirms the extubation risk, and then sends a command to the drive component 3; protection action: after receiving the command, the drive component 3 starts and drives the sliding member 23 to move rapidly on the slide rail 212; the movement of the sliding member 23 drives the protective member 22 to move synchronously, so that it quickly covers and fixes the intubation area, forming a protective unit that can slide on the track 21; It forms a physical barrier to effectively prevent the patient from extubating; Feedback and reset: After the protective action is completed, the main control unit will issue an alarm or prompt to the medical staff, and can record relevant information as needed; at the same time, the drive component 3 can be set to automatically or manually reset the sliding member 23 and the protective member 22 to the initial position after the medical staff confirms the safety of the patient, preparing for the next protective action; through the setting of the slide rail 212 and the sliding member 23, the protective member 22 can accurately cover the intubation area, and the hinged setting of the track 21 and the base 1 enables the protective component 2 to adapt to the position and angle changes of the head of different patients, increasing the flexibility and scope of application. Once the early warning unit 4 detects the risk of extubation, the protective component 2 can respond quickly and automatically start the protective action, effectively reducing the artificial delay of medical staff and improving the response speed and efficiency.

[0029] In one embodiment, the protective member 22 includes several groups of adjustment rods 221, any group of adjustment rods 221 is hinged to the adjacent adjustment rods 221, and any adjustment rod 221 includes two connecting rods, which are cross-hinged; before the protective action is triggered, the protective member 22 is in a retracted state, and when the early warning unit 4 detects that the patient may have a tube removal action, it sends a signal to the main control unit. After the main control unit confirms the risk, it sends an instruction to the drive component 3; after receiving the instruction, the drive component 3 drives the adjustment rods 221 in the protective member 22 mechanically or electrically. Since the adjustment rods 221 are hingedly connected to each other and the two connecting rods are cross-hinged, the protective member 22 can be gradually unfolded like an accordion and fine-tuned according to the shape of the intubation area. This dynamic adjustment ensures that the protective piece 22 can fit tightly against the intubation tube to form an effective physical barrier; due to the hinged design between the adjustment rods 221 and the cross-hinge of the connecting rods, the protective piece 22 can flexibly adapt to the intubation position and shape of different patients, ensuring the stability and reliability of the protective effect; through dynamic adjustment and tight fit to the intubation area, the protective piece 22 effectively reduces the risk of the patient's self-extubation and improves the safety of the treatment process.

[0030] In one embodiment, the track 21 and the connecting rod are both arc structures, and the design principle of the arc structure is based on ergonomic considerations. The human face has complex curves and surfaces, especially around the intubation area, the skin and tissue structure are more sensitive and fragile, the arc structure can adapt to the changes of these curves and surfaces, and reduce the stimulation and damage to the patient's face through smooth transition and uniform force distribution. The arc structure can better fit the contour of the patient's face, especially the curved part around the intubation area, so as to achieve a tighter fit and more uniform force distribution. The track 21 and connecting rod of the arc structure reduce the hard contact with the patient's face, avoid the pressure and discomfort that may be caused by the angular or straight structure, and improve the comfort of the patient during the protection process. The track 21 and connecting rod of the arc structure ensure that the protective member 22 can cover the intubation area in all directions and without dead angles, thereby more effectively preventing the patient from pulling out the tube by himself and improving the protection effect.

[0031] In one embodiment, the driving assembly 3 includes a traction rope 31, a spring 32 and a clamping member 33; the spring 32 is installed at the end of the protective member 22 away from the track 21, one end of the traction rope 31 is fixed to the spring 32, and the other end is fixedly connected to the sliding member 23, the clamping member 33 is slidably arranged at the end of the track 21 away from the spring 32, the clamping member 33 is electrically connected to the main control unit, and the clamping member 33 is used to change the protective state of the protective assembly 2; initial state: the protective assembly 2 is in an undeployed state, the spring 32 is stretched to store energy, the traction rope 31 is in a taut state, The traction rope 31 is fixed to one end of the protection component 2 by the clamping piece 33. At this time, the clamping piece 33 extends out from the track 21 and is clamped with the clamping groove provided on the sliding piece 23. At this time, the protection component 2 is in an unprotected state; when the early warning unit 4 detects that the patient has an unplanned extubation action, it will trigger the protection component 2 to protect. First, the main control unit sends a movement signal to the clamping piece 33. After receiving the signal, the clamping piece 33 moves from the clamping groove and retracts into the track 21. When the clamping piece 33 is completely retracted into the track 21, at this time, the spring spring 32 retracts the traction rope 31 under the action of its own winding. 1 Reeling, during the reeling process, the traction rope 31 drives the sliding member 23 (and then drives the protective member 22) to move along the track 21 in the direction close to the spring spring 32, until the protective assembly 2 is fully deployed and reaches the predetermined protective position, so as to achieve early warning protection of the patient's unplanned extubation; when the spring spring 32 is stretched, it is in a state of being ready to go; once the clamping member 33 is unlocked, the spring spring 32 will quickly release energy and drive the sliding member 23 to move through the traction rope 31. This coordination mode makes the deployment process of the protective assembly 2 fast and powerful, and can quickly achieve protection; Specifically, the traction rope 31 is an elastic rope, so that under the action of the clockwork spring 32 and the elastic rope, a rapid protection effect is achieved; and the clockwork spring 32 should also be provided with a locking assembly 8. When the protection assembly 2 is pulled by the traction rope 31 to achieve protection of the intubation area, it is also necessary to lock with the locking assembly 8. The locking assembly 8 maintains the protection state of the protection assembly 2 to prevent an unconscious patient from pushing away the protection assembly 2. Here, the locking assembly 8 adopts the existing technology, as long as the protection assembly 2 can be locked when the protection assembly 2 moves to the end point, such as a common door lock locking structure.

[0032] In one embodiment, the early warning unit 4 includes a receiving sticker 41 and a signal ring 42; the receiving sticker 41 is bonded to the intubation site, the signal ring 42 is worn on the patient's finger, the receiving sticker 41 is provided with a chip, the receiving sticker 41 is used to receive the signal of the signal ring 42, and judge the distance between the signal ring 42 and the receiving sticker 41; the receiving sticker 41 is electrically connected to the main control unit, and the receiving sticker 41 uploads the data of the signal ring 42 to the main control unit; in the field of medical care, especially for high-risk scenarios such as the need to continuously monitor the patient's activity status or prevent accidental extubation, traditional monitoring methods often have problems such as delayed response and insufficient accuracy; the patient wears the signal ring 42 on his finger, the signal ring 42 has a built-in wireless signal transmitter that can continuously emit signals of a specific frequency, and the receiving sticker 41 is fixed by bonding It is fixed on the skin near the intubation site, and has a chip and a signal receiver integrated inside. The chip is responsible for receiving the signal emitted by the signal ring 42 and calculating the relative distance between the signal ring 42 and the receiving adhesive patch 41. The chip in the receiving adhesive patch 41 calculates the actual distance between the signal ring 42 and the receiving adhesive patch 41 based on the received signal strength or time difference parameter. If the distance is less than the preset safety threshold (that is, it is judged that the patient's finger is approaching the intubation site), the chip will trigger an alarm signal and upload the relevant data to the main control unit through an electrical connection. After receiving the signal, the main control unit communicates with the card connector 33 and triggers the protection component 2 for protection. Through real-time monitoring and immediate alarm, it can effectively and quickly prevent accidental extubation caused by unconscious movements or misoperation of the patient, thereby ensuring the patient's life safety.

[0033] In one embodiment, the base frame 1 includes a base pad 11 and a chin rest 12; the base pad 11 is placed on the bed and the patient's head and neck are placed on the base pad 11; the chin rest 12 is an arc structure, symmetrically arranged on the base pad 11, and is used to fix the chin rest 12 to the patient's lower jaw; the chin rest 12 is designed to be an arc structure, and this shape is consistent with the natural curve of the human lower jaw, which helps to better fit and support the patient's lower jaw, and the chin rest 12 is symmetrically arranged on the base pad 11, fixes the patient's head and neck together, and firmly fixes the patient's lower jaw in the chin rest 12, which not only prevents the patient from moving his head unconsciously, but also the synergistic effect of the base pad 11 and the chin rest 12 forms a stable and comfortable head support system, the base pad 11 provides basic support and comfort, and the chin rest 12 further enhances the stability of the head, and plays a necessary protective effect for the protection of the protective component 2, and the positioning of the base pad 11 and the head plays a key positioning role in the protective part of the protective component 2.

[0034] In one embodiment, an eccentric vibration motor 6 is further included. The eccentric vibration motor 6 is arranged on the chin support 12 on one side to guide the patient's extubation direction. The eccentric vibration motor 6 is electrically connected to the main control unit. When the main control unit determines that the patient has extubation action, it first sends a start signal to the eccentric vibration motor 6 and then sends a protection instruction to the protection component 2. When it is determined that the patient has extubation action, the eccentric vibration motor 6 will be immediately started. The vibration generated by the eccentric vibration motor 6 will act on the chin support 12 at the patient's mandible, and interfere with the patient's extubation direction by physical vibration. This interference can guide the direction of the patient's extubation action and prevent the patient from directly acting on the intubation site. When the eccentric vibration motor 6 is started, the main control unit will send a protection instruction to the protection component 2. The eccentric vibration motor 6 vibrates first, and disperses the discomfort of the intubation site to the patient by vibration, and attracts the patient's extubation direction, which is very important for preventing the occurrence of extubation events. The eccentric vibration motor 6 is started first and then the protection component 2 is started. This sequence of sequence wins valuable protection time for the protection component 2, so that the protection component 2 has enough time to start and play a role.

[0035] In one embodiment, an alarm unit 7 is also included. The alarm unit 7 is arranged on the base pad 11. The alarm unit 7 is electrically connected to the main control unit. After the main control unit sends a start signal to the drive component 3, the drive component 3 triggers the alarm unit 7 to alarm. The alarm unit 7 includes a buzzer 71 and an LED signal light 72. The buzzer 71 is electrically connected to the main control unit, and the LED signal light 72 is connected to the buzzer 71. If the main control unit determines that the patient is at risk of extubation, it will first send a start signal to the drive component 3 to drive the eccentric vibration motor 6 to work, and interfere with the patient's extubation behavior through physical vibration. At the same time, the main control unit will also prepare to start the alarm unit 7. After the eccentric vibration motor 6 is started, the main control unit immediately sends an alarm signal to the alarm unit 7. After receiving the signal, the alarm unit 7 immediately activates the buzzer 71 and the LED signal light 72. The buzzer 71 emits a high-decibel alarm to attract the attention of people around; the LED signal light 72 flashes or changes color to provide a visual warning, ensuring that it can be quickly identified even in a noisy environment; the eccentric vibration motor 6 and the alarm unit 7 work together to form a multi-level and multi-dimensional protection system. On the one hand, physical vibration is used to directly intervene in the patient's extubation behavior; on the other hand, sound and light alarms are used to remind medical staff to respond quickly and take further intervention measures.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An early warning device for preventing unplanned self-extubation of a patient, characterized in that: It comprises a base frame, a protection component, an early warning unit and a main control unit; the base frame is placed on the neck of a bedridden patient, the two ends of the base frame are respectively connected to the protection component and abut against the mandible of the patient, the early warning unit is arranged at the intubation site, and is used to monitor whether the patient has extubation action; the early warning unit and the protection component are both electrically connected to the main control unit, the early warning unit is used to upload the monitored information of whether the patient has extubation action to the main control unit, and the main control unit drives the protection component to protect the intubation site according to the information uploaded by the early warning unit; The protection assembly includes a track, a protection member, a sliding member and a driving assembly; one end of the track is hinged to the base frame; the protection member is fixedly connected to the sliding member, a slide rail is provided on the track, the sliding member is installed on the slide rail, and the driving assembly is used to drive the sliding member to move on the slide rail.

2. The early warning device for preventing unplanned self-extubation of a patient according to claim 1, characterized in that: The protective member comprises a plurality of groups of adjusting rods, any group of the adjusting rods is hinged to the adjacent adjusting rods, and any adjusting rod comprises two connecting rods, which are cross-hinged.

3. The early warning device for preventing unplanned self-extubation of a patient according to claim 2, characterized in that: The track and the connecting rod are both arc structures.

4. The early warning device for preventing unplanned self-extubation of a patient according to claim 1, characterized in that: The driving assembly includes a traction rope, a clockwork spring and a clip; the clockwork spring is installed on the end of the protective member away from the track, one end of the traction rope is fixed to the clockwork spring, and the other end is fixedly connected to the sliding member, the clip is slidably arranged on the end of the track away from the clockwork spring, the clip is electrically connected to the main control unit, and the clip is used to change the protective state of the protective assembly.

5. The early warning device for preventing unplanned self-extubation of a patient according to claim 1, characterized in that: The early warning unit includes a receiving sticker and a signal ring; the receiving sticker is adhered to the intubation tube, the signal ring is worn on the patient's finger, the receiving sticker is provided with a chip, the receiving sticker is used to receive the signal of the signal ring and judge the distance between the signal ring and the receiving sticker; the receiving sticker is electrically connected to the main control unit, and the receiving sticker uploads the data of the signal ring to the main control unit.

6. The early warning device for preventing unplanned self-extubation of a patient according to claim 5, characterized in that: The base frame comprises a base cushion and a chin rest; the base cushion is placed on a bed and the patient's head and neck are placed on the base cushion; the chin rest is an arc structure, symmetrically arranged on the base cushion, and is used to fix the chin rest on the patient's lower jaw.

7. The early warning device for preventing unplanned self-extubation of a patient according to claim 6, characterized in that: It also includes an eccentric vibration motor, which is arranged on one side of the chin rest and is used to guide the patient's extubation direction; the eccentric vibration motor is electrically connected to the main control unit, and when the main control unit determines that the patient has extubation action, it first sends a start signal to the eccentric vibration motor and then sends a protection instruction to the protection component.

8. The early warning device for preventing unplanned self-extubation of a patient according to claim 7, characterized in that: It also includes an alarm unit, which is arranged on the base pad and electrically connected to the main control unit. After the main control unit sends a start signal to the drive component, the drive component triggers the alarm unit to alarm; the alarm unit includes a buzzer and an LED signal light, the buzzer is electrically connected to the main control unit, and the LED signal light is connected to the buzzer.

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