Modularized limb temperature control device used in operation

Abstract

The invention discloses a modularized limb temperature control device used in an operation, and relates to the technical field of medical instruments, the modularized limb temperature control device comprises a touch screen controller, a cooling head sleeve and a plurality of heating modules, the cooling head sleeve and the heating modules are electrically connected with the touch screen controller, the cooling head sleeve is used for sleeving the head of a patient, and the heating modules are electrically connected with the touch screen controller. The plurality of heating modules are respectively used for wrapping different parts of the body of a patient, and the adjacent heating modules are conducted through a cable and a connector. According to the invention, comprehensive, controllable and continuous heat preservation can be carried out on the body of a patient, and the head of the patient can be cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a modular limb temperature control device for use during surgery. Background Art

[0002] Intraoperative temperature control refers to the process of adjusting the patient's body temperature as needed during surgery. Since body temperature changes can affect multiple aspects such as drug metabolism rate, blood coagulation function, and oxygen-carrying level, it is generally necessary to maintain the patient's body temperature within the normal physiological range (36°C - 37°C) to reduce complications and accelerate recovery.

[0003] In some cases, it is necessary to artificially increase or decrease the patient's body temperature. Currently, the following several temperature regulation schemes are mainly used clinically:

[0004] (1) Water bed temperature control: The patient lies on a water bed, and heat is conducted by adjusting the circulating water temperature, enabling both heating and cooling. However, the contact area between the water bed and the patient is limited, especially for patients in the lateral position, with unsatisfactory effects. At the same time, the assembly of the water bed is relatively complex, difficult to add temporarily during surgery, and the supporting facilities such as water tanks are large and heavy, occupying a large amount of space and being inconvenient to move and operate;

[0005] (2) Warm air blower temperature control: The warm air blower and the customized-shaped covering bag can only heat the central area of the body and are difficult to play a good heat preservation role for the limb extremities. Especially in special positions such as the lateral position, semi-lateral position, and prone position, the warm air blower cannot effectively cover the patient's limbs, resulting in difficult control of limb temperature and easy interference with the sterile area of the operation;

[0006] (3) Air conditioner temperature control: The environmental temperature is changed by adjusting the temperature of the operating room air conditioner, but the temperature change is slow and it is easy to affect the comfort of medical staff;

[0007] (4) Ice cap cooling: Local cooling is achieved by using an ice cap on the patient's head, but it is limited to the head area, and the cooling effect is affected by the tightness of contact with the patient's head, resulting in difficult precise temperature control. At the same time, traditional ice caps require pre-making ice and breaking the ice cubes, resulting in more preparatory work and longer time consumption in case of emergency;

[0008] (5) Heated infusion: The temperature is increased by heating the input liquid. Methods such as infusion heating can only play a role in temperature control during a large amount of infusion. When the infusion speed is slow or there is no infusion, the heat preservation effect cannot be exerted, resulting in limited and unsustainable heating effect;

[0009] (6) Extracorporeal circulation temperature control: Directly heating or cooling the blood, but it has a large trauma and is only applicable to specific surgeries.

[0010] Based on this, the above-mentioned body temperature regulation schemes all have their respective limitations, especially in terms of the insufficient heat preservation effect on peripheral parts such as limbs, shoulders and necks. Summary of the Invention

[0011] The purpose of the present invention is to provide a modular limb temperature control device for use during surgery to solve the problems existing in the above-mentioned prior art, comprehensively, controllably and continuously keep the patient's body warm, and cool the patient's head.

[0012] To achieve the above purpose, the present invention provides the following solutions:

[0013] The present invention provides a modular limb temperature control device for use during surgery, including a touch screen controller, a cooling headgear and a plurality of heating modules. The cooling headgear and the heating modules are both electrically connected to the touch screen controller. The cooling headgear is used to be sleeved on the patient's head, and the plurality of heating modules are respectively used to wrap different parts of the patient's body, and adjacent heating modules are conducted through a cable and a connector.

[0014] Preferably, the heating modules are divided into one shoulder and neck heating module and a plurality of limb heating modules, and the shoulder and neck heating module is used to cover the patient's shoulder and neck, and the plurality of limb heating modules are used to wind around the patient's limbs.

[0015] Preferably, the heating module includes a cuff and a heating element. The cuff can be wound around the patient's limb or shoulder and neck, and the two ends of the cuff can be detachably connected. The heating element is installed inside the cuff. The connector is connected to the heating element through the cable, and the connector extends out of the cuff.

[0016] Preferably, the cuff is provided with Velcro, and the two ends of the cuff can be wound towards each other and fixed by the Velcro.

[0017] Preferably, the cuff on the shoulder and neck heating module includes a neck fixing band and a shoulder fixing band. The neck fixing band is fixed to the upper end of the shoulder fixing band. The neck fixing band is used to wind around the patient's neck, and the two ends of the neck fixing band can be adhered by the Velcro. The shoulder fixing band is used to enclose the patient's shoulder, and the two ends of the shoulder fixing band can be adhered by the Velcro. The heating element is provided inside both the shoulder fixing band and the neck fixing band.

[0018] Preferably, the heating element is a heating wire, and the connector includes a male connector and a female connector. One end of the male connector and one end of the female connector are respectively connected to both ends of the heating wire.

[0019] Preferably, the cooling headgear includes an outer cover, an inner cover, and a refrigeration cycle component. The inner cover is used to contact the patient's head, and the inner cover is made of an elastic material. A refrigeration cavity is formed between the outer cover and the inner cover. The refrigeration cycle component is installed in the refrigeration cavity and is used to refrigerate and reduce the surface temperature of the inner cover.

[0020] Preferably, the refrigeration cycle component includes a compressor, a condenser, a capillary throttler, and an evaporator. The outlet of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the capillary throttler, the outlet of the capillary throttler is connected to the inlet of the compressor, and the capillary throttler can exchange heat with the evaporator. The evaporator is used to cool the inner cover. The evaporator is a serpentine pipe, and the serpentine pipe is flat.

[0021] Preferably, a fan is provided on the outer cover. When the fan rotates, it is used to take away the heat on the outer surface of the cooling headgear. The refrigeration cycle component further includes a pressure sensor, which is used to monitor the pressure of the refrigeration cycle component.

[0022] Preferably, temperature sensors are provided at both the cooling headgear and the heating module, and the temperature sensors are electrically connected to the touch screen controller. A power plug and a temperature control connector are provided at the touch screen controller. The temperature control connector is connected to one of the heating modules through the connector, and the touch screen controller and the cooling headgear are connected through a wire.

[0023] The present invention has achieved the following technical effects compared with the prior art:

[0024] The modular limb temperature control device for use during surgery provided by the present invention includes a touch screen controller, a cooling headgear, and multiple heating modules. The cooling headgear and the heating modules are both electrically connected to the touch screen controller, and thus the cooling headgear and the heating modules can be controlled by operating the touch screen controller, which is convenient to operate. At the same time, the working states of the cooling headgear and the heating modules can also be displayed through the touch screen controller so that medical staff can timely know the actual situation. The cooling headgear is used to cover the patient's head to cool the patient's head as needed. The multiple heating modules are respectively used to wrap different parts of the patient's body to achieve heating of multiple parts of the patient's body. Moreover, adjacent heating modules are conducted through a cable and a connector to achieve circuit conduction, ensuring normal heating of each part of the patient's body. At the same time, with a modular design, it can be flexibly combined according to different limb parts, realizing comprehensive and effective warming of the patient's limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of the modular limb temperature control device for surgery in the present invention;

[0027] Figure 2 It is a schematic structural diagram of the limb heating module in the present invention;

[0028] Figure 3 It is a schematic structural diagram of the shoulder and neck heating module in the present invention;

[0029] Figure 4 It is a schematic structural diagram of the cooling headgear in the present invention;

[0030] Figure 5 It is a schematic structural diagram of the touch screen controller in the present invention;

[0031] In the figure: 1 - touch screen controller, 2 - limb heating module, 3 - shoulder and neck heating module, 4 - cuff, 5 - heating element, 6 - temperature sensor, 7 - male connector, 8 - female connector, 9 - shoulder fixing strap, 10 - neck fixing strap, 11 - magic tape, 12 - cooling headgear, 13 - evaporator, 14 - power plug, 15 - temperature control connector. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] The purpose of the present invention is to provide a modular limb temperature control device for surgery to solve the problems existing in the prior art, comprehensively, controllably, and continuously keep the patient's body warm, and cool the patient's head.

[0034] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0035] Such as Figures 1-5As shown in the figure, this embodiment provides a modular limb temperature control device for surgery, which includes a touch screen controller 1, a cooling headgear 12, and multiple heating modules. The cooling headgear 12 and the heating modules are both electrically connected to the touch screen controller 1. Thus, the cooling headgear 12 and the heating modules can be controlled by operating the touch screen controller 1, which is convenient for operation. At the same time, the working states of the cooling headgear 12 and the heating modules can also be displayed through the touch screen controller 1, so that medical staff can timely learn the actual situation, realize the precise control of the temperature of each module, ensure safety. The cooling headgear 12 is used to cover the patient's head to cool the patient's head as needed. The multiple heating modules are respectively used to wrap different parts of the patient's body to realize the heating of multiple parts of the patient's body. And the adjacent heating modules are conducted through cables and connectors to realize the conduction of the circuit, ensure the normal heating of each part of the patient's body. At the same time, the modular design is adopted, which can be flexibly combined according to different limb parts, realizing the comprehensive and effective warming of the patient's limbs.

[0036] Specifically, the heating modules are divided into a shoulder and neck heating module 3 and multiple limb heating modules 2. The shoulder and neck heating module 3 is used to cover the patient's shoulder and neck, and the multiple limb heating modules 2 are used to wrap around the patient's limbs. Thus, the separate heating of the patient's shoulder and neck and each limb can be realized, improving the heating coverage range, which helps to adjust the patient's body temperature. And the control temperature of the heating module is between 35°C and 38°C.

[0037] The heating module includes a cuff 4 and a heating element 5. The cuff 4 can be wrapped around the patient's limb or shoulder and neck, and the two ends of the cuff 4 can be detachably connected to achieve stable fixation, avoiding falling off during the operation and affecting normal heating. The heating element 5 is installed inside the cuff 4. Thus, through the heating of the heating element 5, the temperature adjustment of the patient's limb and shoulder and neck is realized. The connector is connected to the heating element 5 through a cable, and the cable is a data transmission and power transmission cable. The connector extends out of the cuff 4, which is convenient for the connectors on adjacent heating modules to be connected to each other. The temperature adjustment of different positions of the patient is realized through multiple heating modules. Then, through the modular detachable structure, it is ensured that the components of each part can be separated, which is convenient for maintenance and replacement. At the same time, a waterproof and quick connection design is adopted for the interface, which is convenient for disassembly, cleaning and disinfection.

[0038] The cuff 4 is provided with Velcro 11, and the two ends of the cuff 4 can be wound towards each other and fixed through the Velcro 11, which is convenient for installation and disassembly. And each cuff 4 can be flexibly combined according to different limb parts, thus adapting to different surgical positions and individual needs.

[0039] The cuff 4 on the shoulder and neck heating module 3 includes a neck fixing band 10 and a shoulder fixing band 9. The neck fixing band 10 is fixed to the upper end of the shoulder fixing band 9. The neck fixing band 10 is used to wind around the patient's neck, and both ends of the neck fixing band 10 can be adhered through a magic tape 11, thereby fixing the neck fixing band 10 to the patient's neck to achieve temperature adjustment of the patient's neck. The shoulder fixing band 9 is used to enclose the patient's shoulders, and both ends of the shoulder fixing band 9 can be adhered through a magic tape 11, thereby fixing the shoulder fixing band 9 to the patient's shoulders to achieve temperature adjustment of the patient's shoulders. Heating elements 5 are provided inside both the shoulder fixing band 9 and the neck fixing band 10 to achieve the heating function. As a preferred solution, in the shoulder and neck heating module 3, the same heating element 5 can be distributed inside both the shoulder fixing band 9 and the neck fixing band 10, thereby achieving simultaneous regulation of the temperatures of the patient's shoulders and neck and making the structure simpler.

[0040] The heating element 5 is a heating wire. After the heating wire is powered on, it can generate heat. The connection head includes a male connector 7 and a female connector 8. One end of the male connector 7 and one end of the female connector 8 are respectively connected to both ends of the heating wire. In adjacent heating modules, the male connector 7 on one heating module is connected to the female connector 8 on another heating module.

[0041] The cooling headgear 12 includes an outer cover, an inner cover, and a refrigeration cycle component. The outer cover is made of a heat-insulating material to prevent cold loss. The inner cover is used to contact the patient's head, and the inner cover is made of an elastic material to ensure that the evaporator 13 in the refrigeration cycle component can be closely attached to the patient's scalp to improve the cooling effect. The cooling headgear 12 can also be connected to the patient's head by an adjustable elastic band, which also helps to firmly attach the evaporator 13 in the refrigeration cycle component to the patient's head to avoid generating an air layer and improve the heat conduction efficiency. A refrigeration cavity is formed between the outer cover and the inner cover, and the refrigeration cycle component is installed in the refrigeration cavity. The refrigeration cycle component is used for refrigeration and reducing the surface temperature of the inner cover, thereby achieving cooling of the patient's head.

[0042] For the structural design of the heating module and the cooling headgear 12, the outer layer is preferably made of a medical-grade silicone material, which has the characteristics of high temperature resistance and corrosion resistance. The inner layer is preferably made of a medical-grade thermoplastic polyurethane elastomer material (TPU), which can withstand high-pressure steam sterilization at 121°C. For all connectors, a waterproof and sealed design is adopted to ensure that when disinfecting, the disinfectant liquid will not seep into the internal circuit. Through the above design, the heating module and the cooling headgear 12 in this embodiment can support high-pressure steam sterilization at 121°C (for 30 minutes), and can also be wiped and disinfected with 75% medical alcohol. At the same time, it can also be compatible with common disinfectants such as hydrogen peroxide in hospitals. The disinfection design meets the requirements of hospital infection control, and thus can be reused, reducing costs and improving economic benefits.

[0043] The refrigeration cycle assembly includes a compressor, a condenser, a capillary throttle, and an evaporator 13. The compressor is preferably a micro-vortex compressor, which is used to compress the low-temperature and low-pressure R134a refrigerant gas into a high-temperature and high-pressure gas. The direct refrigeration technology of the compressor is adopted to cool the patient's head, solving the technical problem of low cooling efficiency in the existing temperature control solutions. The outlet of the compressor is connected to the inlet of the condenser, and then the high-temperature and high-pressure gas generated by the compressor is cooled into a high-pressure liquid through the condenser. The outlet of the condenser is connected to the inlet of the capillary throttle, and then the high-pressure liquid is throttled and depressurized through the capillary throttle to be converted into a low-temperature and low-pressure liquid. The capillary throttle can exchange heat with the evaporator 13, and the evaporator 13 can be attached to the surface of the patient's scalp (with a spacing of 0.3 mm and a medical-grade thermal conductive silicone layer for heat transfer). The low-temperature refrigerant evaporates and absorbs heat at the evaporator 13 to achieve cooling. The outlet of the capillary throttle is connected to the inlet of the compressor to realize the circulation of the refrigerant. The evaporator 13 is used to cool the inner layer cover to achieve cooling of the patient's head. The evaporator 13 is a serpentine pipe, and the pipe spacing of the serpentine pipe is optimized to ensure uniform cooling, and at the same time, it can rapidly reduce the temperature of the inner surface of the cooling headgear 12. The serpentine pipe is flat, so as to increase the contact area with the patient's head and improve the cooling effect. Through the design of the refrigeration cycle assembly, the compressor is used for real-time refrigeration, without the need to prepare ice in advance, and the temperature of the patient's head can be quickly and conveniently reduced during the rescue process, greatly improving the cooling efficiency and first aid effect.

[0044] The refrigeration cycle assembly is also equipped with safety protection circuits such as overload protection and temperature control, which can improve the safety during use, and the operating temperature range is 0°C - 6°C, and the temperature control accuracy is ±0.5°C.

[0045] A fan is provided on the outer layer cover. When the fan rotates, it is used to take away the heat outside the compressor to achieve heat dissipation. The refrigeration cycle assembly also includes a pressure sensor, which is used to monitor the pressure of the refrigeration cycle assembly, and the pressure sensor is electrically connected to the touch screen controller 1 to display the pressure size in real time, avoiding affecting the normal use and safety due to excessive internal pressure of the refrigeration cycle assembly.

[0046] Temperature sensors 6 are provided at 12 locations on the cooling headgear and at the heating module to detect in real time the temperature of the patient at the locations where heating and cooling are required. The temperature sensors 6 are electrically connected to the touch screen controller 1 to facilitate real-time temperature display. The touch screen controller 1 can preset a minimum temperature. For example, 8°C is set as the minimum temperature limit. When the temperature detected by the temperature sensor 6 reaches 8°C, an alarm can be issued to alert medical staff, ensuring that the temperature is always kept within a safe range through the intelligent temperature control system to prevent complications such as scalding. A power plug 14 and a temperature control connector 15 are provided at the touch screen controller 1. The temperature control connector 15 is connected to one of the heating modules through a connector, and the touch screen controller 1 and the cooling headgear 12 are connected through a wire.

[0047] In the present invention, specific examples are used to illustrate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A modular limb temperature control device for use in surgery, characterized in that: It includes a touch screen controller, a cooling headgear and multiple heating modules, the cooling headgear and the heating modules are both electrically connected to the touch screen controller, the cooling headgear is used to be put on the patient's head, the multiple heating modules are used to wrap different parts of the patient's body, and adjacent heating modules are connected through cables and connectors.

2. The modular limb temperature control device for use in surgery according to claim 1, characterized in that: The heating module is divided into a shoulder and neck heating module and a plurality of limb heating modules, and the shoulder and neck heating module is used to cover the patient's shoulder and neck, and the plurality of limb heating modules are used to wrap around the patient's limbs.

3. The modular limb temperature control device for use in surgery according to claim 2, characterized in that: The warming module includes a cuff and a heating element. The cuff can be wrapped around the patient's limbs or shoulders and neck, and the two ends of the cuff can be detachably connected. The heating element is installed inside the cuff. The connector is connected to the heating element through the cable, and the connector extends out of the cuff.

4. The modular limb temperature control device for use in surgery according to claim 3, characterized in that: The cuff is provided with Velcro, and the two ends of the cuff can be wound in a direction close to each other and fixed by the Velcro.

5. The modular limb temperature control device for use in surgery according to claim 3, characterized in that: The cuff on the shoulder and neck heating module includes a neck fixing strap and a shoulder fixing strap, the neck fixing strap is fixed to the upper end of the shoulder fixing strap, the neck fixing strap is used to be wrapped around the patient's neck, and the two ends of the neck fixing strap can be bonded by Velcro, the shoulder fixing strap is used to encircle the patient's shoulder, and the two ends of the shoulder fixing strap can be bonded by Velcro, and the heating element is provided in both the shoulder fixing strap and the neck fixing strap.

6. The modular limb temperature control device for use in surgery according to claim 3, characterized in that: The heating element is a heating wire, and the connector includes a male connector and a female connector, one end of the male connector and one end of the female connector are respectively connected to two ends of the heating wire.

7. The modular limb temperature control device for use in surgery according to claim 1, characterized in that: The cooling headgear comprises an outer cover, an inner cover and a refrigeration cycle component, wherein the inner cover is used to contact the patient's head and is made of an elastic material, a refrigeration cavity is enclosed between the outer cover and the inner cover, the refrigeration cycle component is installed in the refrigeration cavity, and the refrigeration cycle component is used to cool and reduce the surface temperature of the inner cover.

8. The modular limb temperature control device for use in surgery according to claim 7, characterized in that: The refrigeration cycle component includes a compressor, a condenser, a capillary throttle and an evaporator. The outlet of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the capillary throttle, the outlet of the capillary throttle is connected to the inlet of the compressor, and the capillary throttle can exchange heat with the evaporator. The evaporator is used to cool the inner cover. The evaporator is a serpentine pipe, and the serpentine pipe is flat.

9. The modular limb temperature control device for use in surgery according to claim 7, characterized in that: The outer cover is provided with a fan, and the fan is used to take away the heat from the outer surface of the cooling headgear when rotating; the refrigeration cycle component also includes a pressure sensor, and the pressure sensor is used to monitor the pressure of the refrigeration cycle component.

10. The modular limb temperature control device for use in surgery according to claim 1, characterized in that: Temperature sensors are provided at both the cooling head cover and the heating module, and the temperature sensors are electrically connected to the touch screen controller; a power plug and a temperature control connector are provided at the touch screen controller, the temperature control connector is connected to one of the heating modules via the connector, and the touch screen controller and the cooling head cover are connected via a wire.

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