A hand restraint system for patients with delirium

By combining the outer sleeve shell with the pressure control and monitoring system, the problem of poor hand fixation in delirium patients is solved, achieving comfortable and convenient restraint and real-time monitoring, reducing the risk of pressure ulcers and safety hazards.

CN122123822APending Publication Date: 2026-06-02SHANGHAI PULMONARY HOSPITAL (SHANGHAI OCCUPATIONAL DISEASE PREVENTION & CONTROL INSTITUTE)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI PULMONARY HOSPITAL (SHANGHAI OCCUPATIONAL DISEASE PREVENTION & CONTROL INSTITUTE)
Filing Date
2026-03-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing restraint gloves are insufficient for immobilizing the hands of delirious patients, are prone to loosening, are uncomfortable, inconvenient to operate, and lack real-time monitoring, increasing the workload and safety risks for medical staff.

Method used

The device combines an outer sleeve shell, a protective layer, and a pressure control monitoring system. The outer sleeve shell is fitted onto the patient's wrist, the protective layer reduces the risk of pressure ulcers, and the pressure control monitoring system monitors the restraint force in real time through the airbag layer and a miniature silent air pump, and alarms in case of abnormalities.

Benefits of technology

It effectively immobilizes the wrists of delirious patients, improving comfort and ease of operation, while also enabling real-time monitoring of restraint force, reducing the risk of pressure sores and safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122123822A_ABST
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Abstract

This invention discloses a hand restraint system suitable for patients with delirium, comprising an outer sleeve shell, a protective layer, and a pressure control and monitoring system. The pressure control and monitoring system is disposed within the outer sleeve shell and is communicatively connected to a central monitoring system located at the nurses' station. This invention effectively combines the outer sleeve shell, the protective layer, and the pressure control and monitoring system to not only effectively fix the wrist of a delirium patient but also significantly improve the comfort of the fixation, making operation more convenient. Furthermore, it allows for real-time monitoring of the restraint force on the delirium patient's wrist. When abnormalities in the restraint force occur, medical staff can promptly detect and take appropriate action, greatly facilitating hand restraint procedures for delirium patients.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a hand restraint system suitable for patients with delirium. Background Technology

[0002] Delirium is an acute brain dysfunction, primarily caused by factors such as central nervous system diseases, drug overdose or withdrawal reactions, poisoning, metabolic disorders, and infections. Most patients recover within hours to days. During the illness, cognitive abilities, attention, and memory may be impaired, and symptoms such as altered consciousness, disorientation, sensory confusion, and agitation may occur. The condition often fluctuates.

[0003] When delirious patients experience emotional agitation and cognitive decline, they often pose safety risks such as unplanned extubation or falls from bed. To reduce the risk of delirious patients extubating or falling from bed, medical staff will use restraint gloves to effectively restrain the delirious patient's hands, and then use restraint straps to fix them to the bed rails, thereby effectively restraining the patient's hands.

[0004] Existing restraint gloves, such as those with application number 2022213305385 and patent title "A Hand Restraint Device," include a hand fixing plate (1). The hand fixing plate (1) has a finger fixing part (2) for fixing the fingers and an arm fixing part (3) for fixing the arm on the same end face. A palm restraint part (5) is also provided on the end face of the hand fixing plate (1) facing the finger fixing part (2). The palm restraint part (5) is a soft sheet-like body, and its periphery is detachably connected to the hand fixing plate (1). The finger fixing part (2) is located within the palm receiving space formed by the palm restraint part (5) and the hand fixing plate (1). While this type of restraint glove can provide simple restraint for the hands of delirium patients, it has the following shortcomings:

[0005] First, the fixation effect is insufficient: traditional cloth restraint gloves are easy to loosen and cannot completely restrict the hand movements of delirious patients, which may still cause delirious patients to touch dangerous objects or pull out tubes.

[0006] Second, poor comfort: hard materials or overly tight designs can easily cause skin pressure and blood circulation disorders in delirium patients, and may even induce pressure sores or soft tissue damage.

[0007] Third, the operation is extremely inconvenient: in order to reduce the incidence of pressure ulcers, medical staff need to frequently adjust the restraint force of the restraint gloves, which greatly increases the labor intensity of medical staff.

[0008] Fourth, without a real-time monitoring system, it is difficult to monitor the restraint force on the hands of delirious patients in real time while under restraint. When abnormalities occur in the restraint force, medical staff cannot detect them in time and take corresponding actions.

[0009] The aforementioned deficiencies cause considerable inconvenience to the hand restraint of delirium patients. Summary of the Invention

[0010] To address the problems existing in the prior art, the present invention provides a hand restraint system suitable for delirium patients. This hand restraint system has a reasonable overall design, simple structure, and convenient operation. By effectively combining the outer shell, protective layer, and pressure control monitoring system, it can not only effectively fix the wrist of delirium patients but also effectively improve the comfort of fixation. It is also easy to operate and can monitor the restraint force on the wrist of delirium patients in real time. When the restraint force is abnormal, medical staff can promptly detect and take corresponding actions, which brings great convenience to the hand restraint of delirium patients.

[0011] To solve the above technical problems, the present invention adopts the following technical solution:

[0012] A hand restraint system for patients with delirium, characterized in that it includes:

[0013] An outer sleeve shell formed as a whole in the shape of a cylinder, the outer sleeve shell being fitted onto the wrist of a delirium patient;

[0014] A protective layer for reducing the incidence of pressure sores on the wrists of delirium patients, the protective layer being detachably mounted on the inner wall of the outer sleeve shell;

[0015] A pressure control monitoring system that restrains the wrists of delirious patients by inflating and deflating air and can monitor the restraint force in real time. The pressure control monitoring system is installed inside the outer sleeve shell and is connected to the central monitoring system installed at the nurse station.

[0016] In a preferred embodiment of the present invention, the pressure control monitoring system includes

[0017] An integral cylindrical airbag layer is disposed between the outer sleeve shell and the protective layer, and is fixedly installed on the inner wall of the outer sleeve shell;

[0018] A miniature silent air pump for inflating and deflating the airbag layer, wherein the miniature silent air pump is located inside the outer sleeve shell and the air pump inflator / deflator port is connected to the airbag inflator / deflator port of the airbag layer.

[0019] A controller for controlling the inflation and deflation of the airbag layer by a miniature silent air pump, wherein the controller is communicatively connected to the miniature silent air pump and the central monitoring system.

[0020] A power module for providing power to a miniature silent air pump and a controller, the power module being disposed inside an outer sleeve housing and electrically connected to the miniature silent air pump and the controller respectively.

[0021] In a preferred embodiment of the present invention, the airbag layer includes at least three independent airbag units, which are spaced apart along the inner circumferential direction of the outer sleeve shell, and adjacent airbag units are flexibly connected.

[0022] In a preferred embodiment of the present invention, the air pump inflation / deflation port of the miniature silent air pump is connected to the unit inflation / deflation port of the airbag unit through inflation / deflation software, and an inflation / deflation valve body is provided at each unit inflation / deflation port, the inflation / deflation valve body being communicatively connected to the controller.

[0023] In a preferred embodiment of the present invention, a pressure sensor is provided on the surface of the airbag unit that contacts the protective layer for real-time monitoring of the constraint force exerted by the corresponding airbag unit on the protective layer, and the pressure sensor is communicatively connected to the controller.

[0024] In a preferred embodiment of the present invention, the pressure control and monitoring system further includes a pressure abnormality alarm module that will issue an alarm signal when the restraint force on the wrist of a delirium patient is greater than the upper limit pressure value or less than the lower limit pressure value. The pressure abnormality alarm module is disposed on the outer sleeve housing and is communicatively connected to the controller.

[0025] In a preferred embodiment of the present invention, at least three sub-connecting strips are provided at intervals along the circumference of one end of the protective layer, and at least three female connecting strips that cooperate with the sub-connecting strips are provided at intervals along the circumference of the other end of the protective layer. The sub-connecting strips and the female connecting strips are folded outward and wrapped around the outer sleeve shell and connected by buckles.

[0026] In a preferred embodiment of the present invention, the protective layer is made of medical-grade silicone or hydrocolloid material.

[0027] In a preferred embodiment of the present invention, a restraint strap is provided on the outer side of the outer sleeve shell for effectively fixing the wrist of a delirious patient restrained by a pressure control monitoring system to the bed rail.

[0028] Compared with existing technologies, the present invention adopts a reasonable overall design, simple structure, and convenient operation. It effectively combines the outer shell, protective layer, and pressure control monitoring system to not only effectively fix the wrist of delirium patients but also effectively improve the comfort of fixation. It is also easy to operate and can monitor the restraint force on the wrist of delirium patients in real time. When the restraint force is abnormal, medical staff can detect it in time and take corresponding actions, which brings great convenience to the hand restraint of delirium patients. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the present invention that is strapped to the patient's wrist.

[0032] Figure 3 This is a control principle diagram of the pressure control and monitoring system of the present invention. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0034] Reference Figures 1-3 As shown in the figure, a hand restraint system suitable for patients with delirium includes an outer sleeve shell 100, a protective layer 200, and a pressure control monitoring system 300.

[0035] The outer sleeve shell 100 is formed in a cylindrical shape and is fitted onto the wrist 400 of the delirium patient. The protective layer 200 is used to reduce the incidence of pressure sores on the wrist 400 of the delirium patient. The protective layer 200 is detachably installed on the inner wall of the outer sleeve shell 100.

[0036] The pressure control monitoring system 300 restrains the wrists of delirious patients by inflating and deflating the air and can monitor the restraint force in real time. The pressure control monitoring system 300 is installed inside the outer sleeve housing and is connected to the central monitoring system installed at the nurse station.

[0037] The pressure control and monitoring system 300 includes an airbag layer 340, a miniature silent air pump 310, a controller 320, and a power module 330. The airbag layer 340 has an overall cylindrical structure and is located between the outer sleeve shell 100 and the protective layer 200, and is fixedly installed on the inner wall of the outer sleeve shell 100.

[0038] The miniature silent air pump 310 is used to inflate and deflate the airbag layer. The miniature silent air pump 310 is located inside the outer sleeve housing 100, and the air pump inflation / deflation port is connected to the airbag inflation / deflation port of the airbag layer 340.

[0039] The controller 320 is used to control the miniature silent air pump 310 to inflate and deflate the airbag layer 340. The controller 320 is connected to the miniature silent air pump 310 and the central monitoring system. The controller 320 is equipped with a touch screen on the outside for setting relevant parameters. Medical staff can adjust the range of restraint applied to the wrist of the delirious patient through the touch screen to achieve the corresponding human-computer interaction.

[0040] The power module 330 is used to provide power to the miniature silent air pump 310 and the controller. The power module 330 is located inside the outer sleeve housing 100 and is electrically connected to the miniature silent air pump 310 and the controller 320 respectively.

[0041] The airbag layer 340 includes at least three independent airbag units 341. The airbag units 341 are distributed at intervals along the inner circumference of the outer sleeve shell 100. Adjacent airbag units 341 are flexibly connected. The relevant working principle is similar to the control principle of existing automatic pressure monitors.

[0042] The air pump inflation / deflation port of the miniature silent air pump 310 is connected to the unit inflation / deflation port of the airbag unit 341 through inflation / deflation software. Each unit inflation / deflation port is provided with an inflation / deflation valve body 350, which is connected to the controller 320. The miniature silent air pump 310 inflates and deflates the corresponding airbag unit 341 through the inflation / deflation valve body.

[0043] A pressure sensor 360 is provided on the surface of the airbag unit 341 that contacts the protective layer 200 for real-time monitoring of the restraining force exerted by the corresponding airbag unit on the protective layer. The pressure sensor 360 is communicatively connected to the controller 320. The controller 320 can control the miniature silent air pump 310 to inflate and deflate the corresponding airbag unit 341 through the pressure signal fed back by the pressure sensor 360, so that the restraining force is always kept within the set range, preventing the patient's wrist from slipping out of the airbag or injuring the patient's wrist.

[0044] The pressure control and monitoring system 300 also includes a pressure abnormality alarm module that will issue an alarm signal when the restraint force on the wrist of a delirious patient is greater than the upper limit pressure value or less than the lower limit pressure value. The pressure abnormality alarm module is installed on the outer sleeve housing 100 and is communicatively connected to the controller 320.

[0045] After receiving an abnormal pressure signal, the controller 320 will send the corresponding signal to the central monitoring system, so that medical staff can promptly detect the abnormal pressure situation and take corresponding actions.

[0046] At least three sub-connecting straps 210 are spaced apart along the circumference at one end of the protective layer 200, and at least three female connecting straps 220 that cooperate with the sub-connecting straps 210 are spaced apart along the circumference at the other end of the protective layer 200. The sub-connecting straps 210 and the female connecting straps 220 are folded outward and wrapped around the outer sleeve housing 100 and connected by buckles, or they can be connected by sub-hook and hook and loop fasteners 211 and female hook and loop fasteners 221.

[0047] The protective layer 200 is made of medical-grade silicone or hydrocolloid material. The inner surface of the protective layer 200 that comes into contact with the wrist of the delirium patient is coated with an antibacterial silver ion coating, which effectively prevents the wound on the wrist of the delirium patient from being infected and further improves the safety performance of the hand restraint system.

[0048] A restraint strap 110 is provided on the outer side of the outer sleeve housing 100 to effectively fix the wrist of a delirious patient restrained by the pressure control monitoring system to the bed rail 500. The restraint strap 110 further improves the practicality of the hand restraint system.

[0049] In addition, the controller 320 can also control the miniature silent air pump 310 to inflate and deflate the corresponding airbag units through the inflation / deflation valve body within a set time. For example, if the set time is 10 minutes and the airbag units are numbered 1, 2, and 3, after the set time is reached, the controller first controls the miniature silent air pump to inflate and deflate the airbag unit numbered 1 through the inflation / deflation valve body, then controls the airbag unit numbered 2 to inflate and deflate, and finally controls the airbag unit numbered 3 to inflate and deflate. This structure can relieve pressure on the patient's wrist and prevent pressure sores from forming on the patient's wrist.

[0050] In summary, this invention features a reasonable overall design, simple structure, and convenient operation. The effective combination of the outer sleeve shell, protective layer, and pressure control monitoring system not only effectively fixes the wrists of delirium patients but also significantly improves the comfort of fixation. Furthermore, it allows for real-time monitoring of the restraint force on the delirium patient's wrist. When abnormalities occur in the restraint force, medical staff can promptly detect and address them, greatly facilitating hand restraint for delirium patients.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A hand restraint system suitable for patients with delirium, characterized in that, include An outer sleeve shell formed as a whole in the shape of a cylinder, the outer sleeve shell being fitted onto the wrist of a delirium patient; A protective layer for reducing the incidence of pressure sores on the wrists of delirium patients, the protective layer being detachably mounted on the inner wall of the outer sleeve shell; A pressure control monitoring system that restrains the wrists of delirious patients by inflating and deflating air and can monitor the restraint force in real time. The pressure control monitoring system is installed inside the outer sleeve shell and is connected to the central monitoring system installed at the nurse station.

2. The hand restraint system for patients with delirium as described in claim 1, characterized in that: The pressure control and monitoring system includes An integral cylindrical airbag layer is disposed between the outer sleeve shell and the protective layer, and is fixedly installed on the inner wall of the outer sleeve shell; A miniature silent air pump for inflating and deflating the airbag layer, wherein the miniature silent air pump is located inside the outer sleeve shell and the air pump inflator / deflator port is connected to the airbag inflator / deflator port of the airbag layer. A controller for controlling the inflation and deflation of the airbag layer by a miniature silent air pump, wherein the controller is communicatively connected to the miniature silent air pump and the central monitoring system. A power module for providing power to a miniature silent air pump and a controller, the power module being disposed inside an outer sleeve housing and electrically connected to the miniature silent air pump and the controller respectively.

3. A hand restraint system for patients with delirium as described in claim 2, characterized in that: The airbag layer includes at least three independent airbag units, which are spaced apart along the inner circumference of the outer sleeve shell, and adjacent airbag units are flexibly connected.

4. A hand restraint system for patients with delirium as described in claim 2, characterized in that: The air pump's inflation / deflation port is connected to the unit inflation / deflation port of the airbag unit via inflation / deflation software. Each unit inflation / deflation port is equipped with an inflation / deflation valve body, which is communicatively connected to the controller.

5. A hand restraint system for patients with delirium as described in claim 2, characterized in that: A pressure sensor is provided on the surface of the airbag unit that contacts the protective layer for real-time monitoring of the constraint force exerted by the corresponding airbag unit on the protective layer. The pressure sensor is communicatively connected to the controller.

6. A hand restraint system for patients with delirium as described in claim 2, characterized in that: The pressure control and monitoring system also includes a pressure abnormality alarm module that will issue an alarm signal when the restraint force on the wrist of a delirious patient is greater than the upper limit pressure value or less than the lower limit pressure value. The pressure abnormality alarm module is installed on the outer sleeve shell and is communicatively connected to the controller.

7. A hand restraint system for patients with delirium as described in claim 2, characterized in that: At least three sub-connecting strips are spaced apart along the circumference at one end of the protective layer, and at least three female connecting strips that cooperate with the sub-connecting strips are spaced apart along the circumference at the other end of the protective layer. The sub-connecting strips and female connecting strips are folded outward and wrapped around the outer sleeve shell and connected by buckles.

8. A hand restraint system for patients with delirium as described in claim 2, characterized in that: The protective layer is made of medical-grade silicone or hydrocolloid material.

9. A hand restraint system for patients with delirium as described in claim 2, characterized in that: A restraint strap is provided on the outside of the outer sleeve shell to effectively fix the wrist of a delirious patient restrained by a pressure control monitoring system to the bed rail.