Intelligent restraint glove

By using a temperature sensing and pneumatic transmission system in intelligent restraint gloves, combined with a two-way ratchet buckle and transparent finger sleeve design, the shortcomings of traditional restraint gloves in terms of dynamic response and monitoring are solved. This enables automatic adjustment of restraint force and real-time monitoring, improving patient safety and comfort.

CN121101860BActive Publication Date: 2026-03-24RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional restraint gloves are inadequate in terms of dynamic response, intelligent monitoring, and fixation reliability. They cannot automatically adjust the restraint force according to the patient's physiological state and lack integrated vital sign monitoring functions, resulting in poor patient comfort and nursing outcomes.

Method used

A smart restraint glove was designed, which uses changes in palm temperature to drive a heat-boosting unit and a pneumatic transmission device to automatically adjust the restraint force. It also integrates a heat-boosting unit and a pulse sensor for real-time monitoring. A two-way ratchet buckle structure is used to achieve a firm fixation, and a transparent press-type finger sleeve facilitates finger pulse oxygen detection.

Benefits of technology

It enables automatic adjustment of restraint strength based on the patient's physiological state, improving fixation reliability and nursing safety, reducing the risk of skin damage caused by improper restraint during nursing, and enhancing clinical work efficiency and patient comfort.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121101860B_ABST
    Figure CN121101860B_ABST
Patent Text Reader

Abstract

The present application relates to the field of medical auxiliary equipment, in particular to a kind of intelligent restraint gloves.The present application overcomes the problems of insufficient reliability of existing conventional restraint gloves, inability to automatically adjust the restraint force according to the physiological state of the patient such as emotional agitation, or inability to relax after tightening when the patient's mood calms down, and easy to cause excessive compression.The glove body includes detachable finger sleeves, finger joint connecting seats, heat-sensitive temperature collectors, air pressure transmission devices, ring-shaped wrist bands, pulse sensors and double fixation mechanisms.The detachable finger sleeves facilitate detection, the heat-enhanced pressure unit is linked with the air pressure transmission device, so that the wrist band automatically tightens or loosens according to the patient's state, the quick release device connects the patient's wrist with the bed body, which can be quickly assembled or disassembled, and the double fixation ensures safety and emergency response.The advantage is to balance restraint and monitoring, automatically adjust the force, and improve safety and comfort.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of medical assistive devices, specifically to an intelligent restraint glove. Background Technology

[0002] In clinical medicine, restraint gloves are essential assistive devices for managing patients with delirium, agitation, and other behavioral abnormalities, primarily used to prevent accidental extubation and self-harm. Traditional restraint gloves typically use Velcro fastening, which, while convenient, suffers from issues such as adhesive attenuation and insufficient fixation reliability. They are particularly prone to slipping off when patients are emotionally agitated, posing a safety hazard. Furthermore, traditional gloves are limited in function, providing only physical restraint and failing to monitor patients' vital signs in real time. Healthcare professionals must use additional equipment for finger pulse oximetry, pulse monitoring, and other measurements, increasing the complexity of the procedure.

[0003] In the prior art, such as the prior art document (CN118217076A), an improved restraint glove is disclosed, including a restraint sleeve, a thenar eminence limiting mechanism, a palm limiting member, and several finger limiting members. The restraint sleeve is glove-shaped, including finger sections, a palm section, a back of the hand, and a wrist. A treatment opening is provided on the back of the hand, and a strap is provided on the wrist. The thenar eminence limiting mechanism is located between the finger sections and the palm section, and includes several frustoconical blocks. The bottoms of two adjacent frustoconical blocks are rotatably connected, and a safe distance exists between the thumb and index finger when the sides of two adjacent frustoconical blocks are in contact with each other. The palm limiting member includes an arc-shaped plate located on the palm section, which limits the movement of the palm joint. Several finger limiting members are respectively located at each finger joint, limiting the movement of the finger joint. This solves the problem that existing restraint gloves are inconvenient for performing treatment operations during use. However, this design remains a static restraint mechanism, unable to dynamically adjust the restraint intensity based on the patient's physiological state, such as increased agitation, and lacks integrated vital sign monitoring. Particularly noteworthy is that when patients are emotionally agitated or struggling, their palm temperature typically rises significantly, but current technology fails to fully utilize this physiological characteristic for intelligent response; the restraint behavior still relies on passive fixation and cannot proactively adapt to changes in the patient's state. Some existing devices use a cable tie-like device to tighten the wrist—tightening when struggling—but once the patient calms down and their physical condition improves, the cable tie cannot adjust and remains excessively tight when pressure needs to be reduced. This can not only cause prolonged local tissue compression, affecting blood circulation, but also cause discomfort to the patient. Especially for postoperative patients requiring precise pressure control, this lack of adjustability can significantly impact nursing outcomes and even pose adverse risks.

[0004] Therefore, in view of the shortcomings of traditional restraint gloves and existing improvement solutions in terms of dynamic response, intelligent monitoring and fixation reliability, there is an urgent need for a new type of intelligent restraint device that can sense the patient's physiological changes in real time, automatically adjust the restraint force and integrate monitoring functions, so as to improve the safety and effectiveness of clinical care. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems of insufficient reliability of existing traditional restraint gloves, lack of integrated vital sign monitoring for physical restraint, inability to automatically adjust restraint intensity according to the patient's physiological state such as emotional excitement, or inability to relax after tightening as the patient's emotions calm down, which can easily cause excessive pressure.

[0006] To achieve the above objectives, the technical approach adopted by the present invention to solve its technical problems is as follows:

[0007] When patients are emotionally agitated or struggling, the temperature of their palms usually rises significantly. From a medical perspective, when a person is emotionally agitated, hormone levels change, the sympathetic nervous system is excited, which causes blood vessels on the skin's surface to dilate. The hands are rich in blood vessels; after vasodilation, blood circulation accelerates, heat transfer increases, and the palm, as a part of the body with relatively rich blood circulation, often experiences a significant increase in temperature. Based on this principle, this invention features an innovative design.

[0008] The heat-pressurizing unit in the palm area of ​​the glove uses a heat-sensitive material. When the patient's behavior causes the palm temperature to rise, the heat-sensitive material collects the heat in the body, causing the low-boiling-point liquid to vaporize. The air pressure then pushes a lever to tighten the restraint adjustment mechanism on the wrist. Once the patient's emotions stabilize, the device returns to its original position.

[0009] This invention also innovatively improves upon the problems of reduced adhesiveness, easy patient escape, and limited functionality caused by the use of Velcro in traditional restraint gloves.

[0010] In terms of structural design, plastic straps with buckles are used to replace Velcro for connection to the hospital bed. A two-way ratchet buckle structure is used to achieve a firm fixation and allows for two-way adjustment, which solves the problem that traditional split adjustment devices can only lock one end.

[0011] The design incorporates transparent, press-type, detachable finger sleeves at the knuckles for easy real-time detection and operation of the finger pulse oximeter. A visual pulse detector is integrated into the wrist area to monitor pulse data in real time and identify abnormal patient conditions early.

[0012] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is as follows:

[0013] Design an intelligent restraint glove, the specific solution of which is as follows:

[0014] A smart restraint glove includes a glove body and a thermal pressurization unit disposed on the inner side of the palm of the glove body, the glove body containing a vaporizable medium.

[0015] A pneumatic transmission device is installed on the glove body and connected to the thermal pressurization unit;

[0016] The restraint adjustment mechanism is fitted onto the wrist of the glove body and connected to the pneumatic transmission device.

[0017] Specifically, when changes in hand temperature cause a phase change in the vaporizable medium, the pneumatic transmission device undergoes a pressure change to drive the constraint adjustment mechanism to deform, thereby achieving automatic adjustment of the patient's hand constraint state.

[0018] The hot booster unit includes:

[0019] The heat-conducting box has a heat-transfer layer on the surface that contacts the palm, and contains a vaporizable medium inside.

[0020] The conduit connects the heat-conducting box and the pneumatic transmission device;

[0021] The pneumatic transmission device includes:

[0022] Piston assembly, connected to conduit;

[0023] A conversion assembly, hinged to the piston assembly, is used to convert the linear motion of the piston into rotational motion;

[0024] The transmission component is hinged at one end to the conversion component and at the other end to the constraint adjustment mechanism;

[0025] The conversion components include:

[0026] The transmission lever is hinged at one end to the piston assembly;

[0027] The multi-link unit has its drive end hinged to the other end of the transmission lever, and its transmission end is equipped with a rack to convert rotary motion into linear motion. The rack meshes with the constraint adjustment mechanism.

[0028] The constraint adjustment mechanism includes:

[0029] A circular wristband is fitted around the wrist near the glove body.

[0030] A two-way adjusting screw connects to both ends of the annular wristband via positive and negative threads;

[0031] The transmission gear is fixed in the middle of the bidirectional adjusting screw and meshes with the rack.

[0032] Furthermore, the multi-link unit is a scissor linkage structure, and a guide tube is also provided on its outer side.

[0033] Furthermore, it also includes a detachable finger restraint unit, which includes:

[0034] Finger sleeves are connected to finger joint connectors via threaded interfaces.

[0035] Knuckle connectors are attached to the glove body to restrict finger movement;

[0036] The axial length of the finger sleeve can cover the distal phalanx.

[0037] Furthermore, it also includes a quick release device, which includes:

[0038] Restraint straps are fitted around the distal wrist of the glove body;

[0039] Bed frame fixing rings are fitted onto the bed frame;

[0040] The two-way ratchet buckle selectively engages with the restraint straps and bed fixing rings.

[0041] The beneficial effects of this invention are:

[0042] 1. Through a thermal pressurization unit and a pulse sensor, real-time monitoring of hand temperature and heart rate changes is achieved. When the patient becomes agitated, the increased palm temperature triggers the vaporization of low-boiling-point liquid, driving the piston assembly to move and further tighten the annular wristband to prevent the patient's hand from slipping out of the glove; simultaneously, the pulse sensor detects and displays abnormal heart rate. This device can provide restraint in critical moments and automatically release pressure after the patient calms down, significantly reducing the risk of skin damage caused by improper restraint during nursing care.

[0043] 2. The quick-release buckle design with a two-way ratchet structure ensures the firmness of the restraint strap when it is fixed, and also enables rapid release in emergency situations. This solves the problems of adhesive attenuation and difficulty in emergency release that exist in traditional Velcro fastening methods, and significantly improves the reliability of clinical nursing and emergency response capabilities.

[0044] 3. The detachable finger restraint unit adopts a threaded connection and detachable design, allowing medical staff to unscrew the finger sleeves individually to perform operations such as finger pulse oxygenation monitoring without removing the entire glove. This enables the medical equipment to remain compatible with routine diagnostic and treatment operations even when restrained, solving the pain point that traditional restraint gloves must be completely removed before examinations can be performed, and significantly improving clinical work efficiency. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the palm-up position of the present invention;

[0046] Figure 2 This is a schematic diagram of the back of the hand facing upwards in this invention.

[0047] Figure 3 for Figure 2 Schematic diagram of part A in the middle;

[0048] Figure 4 This is a side view of the structure of the present invention;

[0049] Figure 5 This is a top view of the structure of the present invention;

[0050] Figure 6 This is a schematic diagram of the back-of-hand structure of the present invention;

[0051] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure along the AA direction;

[0052] Figure 8 for Figure 7 Schematic diagram of Part B in the middle section;

[0053] Figure 9 for Figure 7 Schematic diagram of the structure of part C;

[0054] Figure 10 This is a schematic diagram of the rapid release device.

[0055] Figure 11 This is a schematic diagram of the disassembled structure of the finger sleeve.

[0056] The above figures include the following reference numerals:

[0057] 1. Glove body; 11. Finger sleeve; 12. Finger joint connector; 21. Heat conduction box; 22. Heat transfer layer; 23. Conduit; 30. Transmission lever; 31. Multi-link unit; 32. Rack; 33. Guide tube; 40. Circular wristband; 41. Bidirectional adjusting screw; 42. Transmission gear; 51. Restraint strap; 52. Bed fixing ring; 53. Bidirectional ratchet buckle; 61. Fluid box; 62. Piston; 63. Sealing cover; 70. Pulse sensor. Detailed Implementation

[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, and not all embodiments.

[0059] In the description of this invention, it should be understood that the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] refer to Figure 1-11 This invention provides an intelligent restraint glove, and the invention is further illustrated by preferred embodiments thereof:

[0061] A smart restraint glove includes a glove body 1, a restraint section, and a connecting section. The glove body 1 completely covers the patient's hand, effectively preventing the patient from unconsciously pulling on medical devices such as IV tubing while maintaining the hand's natural range of motion. The restraint section, located at the wrist area of ​​the glove body 1, automatically adjusts the restraint strength based on the patient's physiological state. It increases the restraint when agitation is detected and automatically relaxes it when the patient is calm, providing dynamic protection and preventing the patient's hand from slipping out of the glove body 1. The connecting section, located at the distal wrist of the glove body 1, uses a quick-release device to connect to the bed rail, ensuring both reliable fixation and allowing medical staff to quickly release the restraint in emergencies. This design maximizes patient comfort and ease of care while ensuring medical safety.

[0062] In practice, the glove body 1 conforms to the physiological curve of the human hand, featuring a common fingerless glove structure that fits snugly against the patient's hand. This ensures effective restraint while minimizing patient discomfort. To accommodate different needs, it is available in various sizes such as S / M / L (e.g., matched to the patient's height or hand size). The outer layer of the palm portion of the glove body 1 is made of medical-grade silicone, while the inner part in contact with the skin uses a breathable and skin-friendly cotton lining. Good breathability prevents skin discomfort caused by sweat buildup. The outer silicone layer and the cotton lining are bonded together using adhesive.

[0063] In specific implementation, a detachable finger restraint unit is provided at the finger part, including a finger sleeve 11, which is connected to a finger joint connector 12 through a threaded interface; the finger joint connector 12 is connected to the glove body 1 to restrict the movement of the finger sleeve 11.

[0064] The axial length of the finger sleeve 11 can cover the distal phalanx.

[0065] The finger sleeve 11 has a tubular structure and is made of transparent material for easy observation. It is adapted to the flexion and extension curvature of the finger, allowing the patient to perform appropriate finger movements while also effectively restraining them.

[0066] The outer end of the finger sleeve 11 has external threads that mate with the internal thread interface at the front end of the finger joint connector 12, forming a detachable structure. When medical personnel perform finger pulse oximetry testing, they only need to unscrew the finger sleeve 11 to allow the detection probe to directly contact the patient's fingertip. After the test is completed, the finger sleeve is tightened again to restore the restraint. In this way, the convenience of the monitoring operation is ensured without affecting the overall restraint stability of the glove, and dangerous behaviors such as pulling out the needle after the patient bends their fingers are effectively prevented.

[0067] In practice, the knuckle connector 12 is made of medical-grade silicone, which has a certain degree of elasticity and softness. Its front end has five threaded interfaces that match the finger sleeves 11, allowing for the connection of the finger sleeves for each of the five fingers. The rear end of the knuckle connector 12 is integrally formed with the palm portion of the glove body 1, but it has a certain thickness compared to the glove body 1. Because medical-grade silicone itself is elastic, it allows for natural flexion and extension movements of the fingers, avoiding the stiffness and discomfort caused by rigid fixation in traditional finger restraint gloves. At the same time, the self-recovery force of the silicone can limit excessive finger movement, thus ensuring the effectiveness of the restraint.

[0068] In specific implementation, the restraint part includes a heat pressurization unit, a pneumatic transmission device, and a restraint adjustment mechanism. The heat pressurization unit is located on the inner side of the palm of the glove body 1 and contains a vaporizable medium. The pneumatic transmission device is located on the glove body 1 and is connected to the heat pressurization unit. The restraint adjustment mechanism is fitted on the proximal end of the wrist of the glove body 1 and is connected to the pneumatic transmission device.

[0069] Specifically, when changes in hand temperature cause a phase change in the vaporizable medium, the pneumatic transmission device converts the pressure change into mechanical motion to drive the deformation of the constraint adjustment mechanism, thereby achieving automatic adjustment of the patient's hand constraint state.

[0070] In specific implementation, the thermal pressurization unit includes a heat-conducting box 21, which has a heat transfer layer 22 on its contact surface with the palm, and contains a vaporizable medium inside.

[0071] The conduit 23 connects the heat-conducting box 21 and the pneumatic transmission device.

[0072] The heat-conducting box 21 extends through the glove body 1 at its bottom, slightly protruding from the glove body 1's lining. It is securely connected to the glove body 1 using medical adhesive, ensuring it won't loosen or shift during patient movement and guaranteeing accurate temperature monitoring. The heat-conducting box 21 is made of insulating material, providing excellent heat insulation to prevent heat loss. The heat-conducting box 21 contains a vaporizable medium, such as a low-boiling-point liquid, a mixture of ether and ethanol with a boiling point of approximately 34°C. When the patient's hand temperature rises due to agitation, this liquid rapidly vaporizes, increasing the internal pressure of the heat-conducting box 21. As the temperature decreases, the gas gradually liquefies, reducing the internal pressure and thus enabling a sensitive response to temperature changes.

[0073] Alternatively, an azeotropic mixture of methanol and dichloromethane (boiling point 37.8℃) can be used. This combination has a relatively gentle vaporization response, suitable for applications requiring milder temperature feedback. The bottom of the heat-conducting box 21 has a 0.2 mm thick aluminum foil heat transfer layer 22. Due to the elasticity of the silicone material, the heat transfer layer 22 adheres tightly to the patient's palm skin, quickly and effectively collecting heat emitted from the patient's palm and transferring it to the low-boiling-point liquid inside the heat-conducting box 21. Two liquid-gas conduits 23 are connected to both sides of the heat-conducting box 21. The conduits 23 are made of polytetrafluoroethylene (PTFE), and their walls are connected to the glove body 1 with medical adhesive or fasteners, allowing them to adapt to the bending and movement of the glove without being damaged by the patient's hand movements.

[0074] One end of the conduit 23 is set close to the side wall of the heat conduction box 21, and the other end is connected to the pneumatic transmission device to transmit the pressure change caused by temperature change in the heat conduction box 21 to the pneumatic transmission device.

[0075] In specific implementation, the pneumatic transmission device includes: a piston assembly connected to the conduit 23; a conversion assembly hinged to the piston assembly for converting the linear motion of the piston into rotational motion; and a transmission assembly with one end hinged to the conversion assembly and the other end movably connected to the constraint adjustment mechanism.

[0076] The piston assembly includes a fluid chamber 61 located on the back of the glove body 1, which is a hollow cavity. Its interior is divided into a power chamber and a buffer chamber by a longitudinal partition. The partition height is two-thirds of the total height of the chamber, ensuring that the tops of the two chambers remain connected, facilitating gas flow and pressure balance. The power chamber is connected to the heat-conducting box 21 via a conduit 23 and contains a piston 62 that can slide up and down.

[0077] A sealing cover plate 63 is also provided inside the power chamber, dividing the power chamber into upper and lower chambers, with the lower chamber communicating with the conduit 23. A sealing hole is provided in the center of the sealing cover plate 63, within which the piston 62 can move up and down. A sealing ring that mates with the piston 62 is also provided on the sealing hole to achieve dynamic sealing and ensure that the gas inside the power chamber does not leak.

[0078] A spring is installed between the piston 62 and the sealing cover plate 63. The top of the spring is connected to the top of the piston 62, and the bottom of the spring is connected to the top of the sealing cover plate 63. When the piston 62 is pushed upward by gas pressure, the spring is stretched and stores elastic potential energy. When the gas pressure in the power chamber decreases, the spring returns to its original shape, releases the elastic potential energy, and pulls the piston 62 back to its original position. One end of the transmission lever 30 is also hinged to the top of the piston 62.

[0079] In specific implementation, the conversion component includes: a transmission lever 30, one end of which is hinged to the piston assembly; a multi-link unit 31, the driving end of which is hinged to the other end of the transmission lever 30, and the transmission end of which is provided with a rack 32 for converting rotational motion into linear motion; the rack 32 meshes with the constraint adjustment mechanism.

[0080] The transmission lever 30 is mounted on the partition of the fluid box 61 via a fixed shaft. One end of the lever is hinged to the top of the piston 62, and the other end is located in the buffer chamber and hinged to the drive end of the multi-link unit 31 via a vertical push rod. The multi-link unit 31 is a scissor linkage structure, which consists of multiple sets of cross-arranged links connected in series by pins. The cross-sections are equipped with self-lubricating copper sleeves and torsion springs, and the entire unit is installed in the guide tube 33 on one side of the buffer chamber. When the piston 62 rises and the push rod presses down, each pair of links gradually extends like unfolded scissors, driving the end rack 32 forward. When the push rod rises, the link sets recoil back together due to the elasticity of the torsion springs, causing the rack 32 to return to its original position.

[0081] The rack 41 is a stainless steel strip with a toothed surface, which has high strength and wear resistance. Its end engages with the constraint adjustment mechanism.

[0082] In specific implementation, the constraint adjustment mechanism includes: an annular wristband 40 fitted onto the near end of the wrist of the glove body 1; a bidirectional adjusting screw 41 connecting the two ends of the annular wristband 40 via positive and negative threads; and a transmission gear 42 fixed in the middle of the bidirectional adjusting screw 41 and meshing with the rack 32.

[0083] The annular wrist cuff 40 has threaded holes at both ends of its opening, which are rotatably connected to a bidirectional adjusting screw 41. The bidirectional adjusting screw 41 has threads with opposite directions at both ends, which mate with nut seats at both ends of the opening of the annular wrist cuff 40. A transmission gear 42 is fixedly installed in the middle of the bidirectional adjusting screw 41. When the rack 41 pushes the transmission gear 42 to rotate clockwise, the bidirectional adjusting screw 41 rotates accordingly. Because the threads at both ends rotate in opposite directions, they cause the nut seats at both ends to move closer together, tightening the wrist cuff. When the transmission gear 42 rotates counterclockwise, the nut seats move away from each other, and the annular wrist cuff 40 loosens. This achieves stepless adjustment of the restraint force, automatically tightening when the patient is agitated to prevent accidental tube removal, and automatically loosening when the patient is calm to avoid excessive pressure. This effectively solves the drawbacks of traditional restraint devices that require constant tightening and loosening.

[0084] In specific implementation, a pulse sensor 70 is provided on the inner side of the wrist of the glove body 1. The pulse sensor 70 is connected to a detector outside the glove via a wire, enabling real-time monitoring of the patient's pulse frequency and waveform changes. The pulse sensor 70 is an existing instrument that can be purchased by those skilled in the art, and its integration with this device does not require any inventive effort.

[0085] In specific implementation, the quick release device includes: a restraint strap 51 fitted onto the distal end of the wrist of the glove body 1;

[0086] A fixing ring 52 fitted onto the bed frame; a bidirectional ratchet buckle 53 that selectively engages with the restraint strap 51 and the bed frame fixing ring 52.

[0087] The restraint strap 51 is made of high-strength polymer cable tie, with one side precisely machined with oblique serrations, and the other side is firmly connected to the wrist of the glove body 1 through hot-melt welding or sewing. The bed frame fixing ring 52 has the same serrated structure and can be fitted onto the bed rail. The bidirectional ratchet buckle 53 has two symmetrically arranged pawls inside its housing, which are mounted on the rotating shaft through a pre-tensioned torsion spring to form a figure-eight structure. The direction of the pawl's oblique surface is precisely matched with the insertion direction of the restraint strap 51 and the bed frame fixing ring 52.

[0088] One end of the restraint strap 51 and the bed fixing ring 52 are fixedly connected to one side of the housing, while the other end is a free end. The tightness can be controlled by the length of the free end extending into the housing. When the restraint strap 51 or the bed fixing ring 52 is inserted, the helical teeth press the pawl to rotate and compress the torsion spring, achieving smooth one-way passage. When insertion stops, the torsion spring drives the pawl to reset and engage with the helical teeth, forming a reliable mechanical lock. When it is necessary to release the restraint, simply rotate the pawl manually to disengage it from the helical teeth for quick release.

[0089] In use, medical staff first place the patient's hand into the glove body 1 and adjust the finger sleeve position to ensure a close fit to the patient's fingers. Then, the restraint strap 51 is secured to the bed rail via the bidirectional ratchet buckle 53. Initially, the annular wristband 40 remains loose, with the tightness allowing two fingers to be inserted, ensuring patient comfort and not affecting blood circulation. When the patient becomes agitated, causing their palms to heat up or their heart rate to increase, the thermal pressurization unit reacts quickly, increasing the liquid vaporization pressure and triggering the pneumatic transmission device. This, via the rack 32, automatically tightens the annular wristband 40 to prevent the patient from engaging in dangerous behaviors such as self-harm or tube removal. When the patient calms down and their physiological indicators return to normal, the gas liquefaction pressure decreases, and the return spring drives all components back to their initial state, automatically relaxing the annular wristband 40 to avoid complications caused by prolonged excessive restraint. The entire process requires no manual intervention, providing a solution for the safe care of high-risk patients. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention shall be included within the scope of protection of this invention.

Claims

1. A smart restraint glove comprising a glove body (1), characterized in that : A heat supercharging unit is arranged inside the palm of the glove body (1) and contains a vaporizable medium; A pneumatic transmission device is arranged on the glove body (1) and communicates with the heat supercharging unit; A constraint adjustment mechanism is arranged at the proximal end of the wrist of the glove body (1) and is connected with the pneumatic transmission device; When the vaporizable medium changes phase due to changes in hand temperature, the pneumatic transmission device changes in pressure to drive the constraint adjustment mechanism to deform, thereby automatically adjusting the constraint state of the patient's hand; The heat supercharging unit includes: A heat conduction box (21) with a heat transfer layer (22) on the contact surface of the palm and containing a vaporizable medium; A conduit (23) connecting the heat conduction box (21) and the pneumatic transmission device; The pneumatic transmission device includes: A piston assembly communicating with the conduit (23); A conversion assembly hinged to the piston assembly for converting linear motion of the piston into rotary motion; A transmission assembly hinged at one end to the conversion assembly and connected at the other end to the constraint adjustment mechanism; The conversion assembly includes: A transmission lever (30) hinged at one end to the piston assembly; A multi-link unit (31) having a driving end hinged to the other end of the transmission lever (30) and a transmission end provided with a rack (32) for converting rotary motion into linear motion, the rack (32) being engaged with the constraint adjustment mechanism; The constraint adjustment mechanism includes: A ring-shaped wrist cuff (40) arranged at the proximal end of the wrist of the glove body (1); A bidirectional adjustment screw (41) connecting the two ends of the ring-shaped wrist cuff (40) through positive and negative threads; A transmission gear (42) fixed to the middle part of the bidirectional adjustment screw (41) and engaged with the rack (32).

2. The intelligent constraint glove according to claim 1, wherein: The multi-link unit (31) is a scissors linkage structure, and a guide tube (33) is further arranged on the outside of the multi-link unit (31).

3. The smart restraint glove of claim 1, wherein Further comprising a detachable finger constraint unit, the detachable finger constraint unit comprising: A finger sleeve (11) connected to a finger joint connecting seat (12) through a threaded interface; The finger joint connecting seat (12) is connected to the glove body (1) to limit the movement of the finger sleeve (11); The axial length of the finger sleeve (11) can cover the distal phalanx.

4. A smart restraint glove according to any one of claims 1, wherein Further comprising a quick release device, the quick release device comprising: A constraint belt (51) arranged at the distal end of the wrist of the glove body (1); A bed body fixing ring (52) arranged on the bed body; A bidirectional ratchet buckle (53) selectively connected with the constraint belt (51) and the bed body fixing ring (52).

Citation Information

Patent Citations

  • Restraint glove

    CN118217076A

  • Glove restraint strap

    CN217162419U

  • Intelligent restraint strap binding pad

    CN220655761U