Portable cold compress device for pediatric surgery wound nursing

Abstract

The invention discloses a portable cold compress device for pediatric surgery wound nursing, which comprises an isolation air bag, a left base and a right base, the left base and the right base are fixedly arranged at two ends of the isolation air bag, a plurality of groups of bandages are arranged on the left base and the right base, and the isolation air bag comprises an upper air cavity and a lower air cavity which are integrally formed and independently closed; the isolation air bag is provided with a variable isolation mechanism for adjusting the air quantity in the upper air cavity and the lower air cavity according to the temperature change, the variable isolation mechanism comprises an inner moving seat arranged in the leftward base, and the leftward base is provided with a temperature moving assembly for driving the inner moving seat to freely slide in the containing groove according to the temperature change of the temperature guide plate; according to the cold compress device, by arranging the variable isolation mechanism, the thickness of the isolation layer can be dynamically adjusted in the cold compress process, the uniformity and stability of the cold compress effect are ensured through the design, the situation that the cold compress effect is reduced due to temperature rise of a cold compress object is avoided, meanwhile, skin irritation caused by low temperature is prevented, and the safety and effectiveness of cold compress are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical cold compress devices, and particularly to a portable cold compress device for pediatric surgical wound care. Background Art

[0002] In pediatric surgical wound care, the importance of cold compress is self-evident. Cold compress can effectively promote capillary contraction, reduce local blood flow, lower vascular permeability, thereby reducing edema and congestion. At the same time, cold compress can also slow down the nerve conduction speed and play an analgesic role, which is particularly important for postoperative pain management.

[0003] Chinese Patent (Publication No.: CN118750266A), this solution specifically includes: a cold compress belt pocket body; an airbag, the airbag is fixedly installed at the bottom of the inner wall of the cold compress belt pocket body. The present invention supports the ice pack through the cooperation of the built-in airbag and the inflation component, effectively avoiding the ice pack directly pressing on the patient's wound, reducing the pain caused by the weight of the liquid during injection, and avoiding the problem that when disassembling the cold compress belt, the contact surface movement may rub the swollen part of the patient, which may cause additional pain and affect the treatment effect, improving the comfort of the patient. Moreover, this cold compress belt is convenient for replacing the cold compress liquid. The user can quickly inject the refrigerated cold compress liquid to achieve a rapid and uniform cold compress effect, while ensuring the continuity and effectiveness of the cold compress effect, reducing the discomfort that the patient may feel during the replacement process, improving the use efficiency, and accelerating the patient's recovery process.

[0004] In the existing surgical cold compress process, it is usually necessary to place an isolation object between the medical ice pack and the skin. The purpose is to buffer the stimulation of low temperature to the skin. However, as the medical ice pack gradually "melts" during use, when the thickness of the isolation object remains unchanged, the cold compress effect on the wound skin position will gradually decrease. When the cold compress device in the above patent is used, it is difficult to adaptively adjust the heat insulation effect of the isolation object according to the "melting" situation of cold compress objects such as medical ice packs, and thus it is difficult to ensure the uniformity and stability of the cold compress effect. Therefore, a portable cold compress device for pediatric surgical wound care is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a portable cold compress device for pediatric surgical wound care, which has the advantages of ensuring the uniformity and stability of the cold compress effect, and solves the problem that it is difficult to adaptively adjust the heat insulation effect of the isolation object according to the "melting" situation of cold compress objects such as medical ice packs.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a portable cold compress device for pediatric surgical wound care, comprising an isolation air bag and a left-facing base and a right-facing base fixedly arranged at both ends thereof, a plurality of straps are arranged on the left-facing base and the right-facing base, a cloth bag for placing a medical ice bag is arranged on the upper layer of the isolation air bag and a skin-friendly layer in direct contact with the skin is arranged on the lower layer thereof, the isolation air bag comprises an upper air cavity and a lower air cavity which are integrally formed and independently sealed, and a variable isolation mechanism is arranged on the isolation air bag for adjusting the amount of gas in the upper air cavity and the lower air cavity according to temperature changes;

[0007] The variable isolation mechanism includes an inner displacement seat arranged in the left base, and a receiving groove for the inner displacement seat to slide horizontally is provided on the left base, a side wall of the receiving groove is fixedly connected with a thermal conductive plate, and an elastic thermal conductive sheet is fixedly connected to the thermal conductive plate, and the elastic thermal conductive sheet is embedded and fixed in the skin-friendly layer, and a temperature shifting component is provided on the left base to drive the inner displacement seat to slide freely in the receiving groove according to the temperature change at the thermal conductive plate;

[0008] The left base is provided with an upper airway and a lower airway, and the upper airway and the lower airway correspond to the upper air cavity and the lower air cavity respectively and are gas-connected;

[0009] The inner shift seat is provided with a clearance groove corresponding to the upper airway and the lower airway, and the inner shift seat is also provided with a rectangular through groove communicating with the clearance groove, and the left base includes an integrally formed air guide groove at the position corresponding to the rectangular through groove;

[0010] The cloth bag is provided with a sealing belt for sealing the medical ice bag, the head end of the sealing belt is fixedly connected to the cloth bag, and the right base is provided with a compression binding component for rolling up the tail end of the sealing belt to fix the medical ice bag, and the right base is also provided with an air blocking component for synchronously filling gas into the upper air cavity and the lower air cavity.

[0011] Preferably, the temperature shifting assembly comprises a middle block slidably arranged in the accommodating groove, the middle block is in sliding contact with the heat conducting plate, and low-conductivity temperature memory alloy and high-conductivity temperature memory alloy are respectively arranged on both sides of the middle block;

[0012] The two ends of the low-conductivity temperature memory alloy are respectively fixedly connected to the inner displacement seat and the middle block, and the two ends of the high-conductivity temperature memory alloy are respectively fixedly connected to the middle block and the left base.

[0013] Preferably, when the low-conductivity temperature memory alloy recovers its deformation, the upper airway is communicated with the give-way groove, and when both the low-conductivity temperature memory alloy and the high-conductivity temperature memory alloy recover their deformation, both the upper airway and the lower airway are communicated with the give-way groove.

[0014] Preferably, the low-conductivity temperature memory alloy and the high-conductivity temperature memory alloy are both in an elongated state in an initial state.

[0015] Preferably, an identification arrow is fixedly connected to the upper surface of the inner moving seat. The identification arrow slidably penetrates through the air guide groove, and a scale line is fixedly connected to the leftward base corresponding to the position of the identification arrow.

[0016] Preferably, the pressing and binding assembly includes a roller body driven by a motor and freely rotatable in the vertical direction. The roller body is fixedly rotated on the rightward base, and the tail end of the sealing tape is fixedly connected to the roller body.

[0017] Preferably, the air resistance assembly includes an air sealing cylinder fixedly connected to the rightward base. A horizontal rod reciprocating in the horizontal direction is provided on the air sealing cylinder. A piston plate is fixedly connected to the horizontal rod, and the outer peripheral surface of the piston plate is in sliding contact with the inner wall of the air sealing cylinder;

[0018] The air sealing cylinder includes an integrally formed air outlet and an air inlet. A return air cavity gas-communicating with both the upper air cavity and the lower air cavity is fixedly connected to the rightward base. The return air cavity is fixedly and communicatively connected to the air outlet on the air sealing cylinder.

[0019] Preferably, a central disk is coaxially fixed on the roller body. A plurality of groups of pawls arranged in an annular array are provided on the central disk. An internal ratchet wheel is sleeved outside the central disk. All the plurality of groups of pawls are meshed and connected with the internal ratchet wheel;

[0020] A conical disk is coaxially fixed on the internal ratchet wheel. A side plate is fixedly connected to the rightward base. The conical disk is fixedly rotated on the side plate;

[0021] A conical gear ring is fixedly sleeved on the internal ratchet wheel. The conical gear ring is meshed and connected with a driven bevel gear. A mounting plate is fixedly connected to the rightward base. The driven bevel gear is fixedly rotated on the mounting plate, and a coaxial same-position swing rod is fixedly provided on the driven bevel gear. A freely deflectable connecting rod is provided between the same-position swing rod and the horizontal rod. The two ends of the connecting rod are respectively fixedly rotated on the same-position swing rod and the horizontal rod.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. By providing a variable partition mechanism, the present invention can dynamically adjust the thickness of the isolation airbag according to the temperature change of the medical ice pack. During the cold compress process, as the temperature of the medical ice pack rises, the low-conductivity temperature memory alloy and the high-conductivity memory alloy respectively respond to the temperature change and drive the inner moving seat to move, thereby realizing the exhaust of the upper air cavity and the lower air cavity and dynamically adjusting the thickness of the isolation layer. This design ensures the uniformity and stability of the cold compress effect, avoids the reduction of the cold compress effect caused by the increase in the temperature of the cold compress object, and at the same time prevents the skin from being stimulated by low temperature, improving the safety and effectiveness of the cold compress.

[0024] 2. The present invention provides an air blocking component, which can simultaneously inflate the upper and lower air cavities while fixing the medical ice pack to form a stable isolation layer. In addition, the winding design of the sealing tape can slow down the escape of cold air and extend the cold compress time. At the same time, the function of dynamically adjusting the thickness of the isolation layer ensures the continuity of the cold compress effect, avoids the interruption of cold compress caused by the "melting" of the cold compress material, and improves the efficiency of cold compress. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the components where the right-facing base of the present invention is located;

[0027] Figure 3 This is a schematic diagram of the components of the gas sealing cylinder of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the components where the roller body of the present invention is located;

[0030] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0031] Figure 7 This is a schematic diagram of the components where the isolation airbag of the present invention is located;

[0032] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle;

[0033] Figure 9 It is a schematic diagram of the components where the inner shift seat of the present invention is located.

[0034] In the figure: 1. isolation airbag; 101. upper air cavity; 102. lower air cavity; 2. cloth bag; 3. sealing belt; 4. binding belt; 5. skin-friendly layer; 6. elastic thermal conductive sheet; 7. left base; 8. right base; 9. roller body; 10. edge plate; 11. center disk; 12. ratchet; 13. inner ratchet; 14. bevel gear ring; 15. driven bevel gear; 16. mounting plate; 17. co-positioned rocker rod; 18. connecting rod; 19. transverse rod; 20. piston plate; 21. air sealing cylinder; 22. return air cavity; 23. conical disk; 24. inner shift seat; 25. make way groove; 26. low-conductivity temperature memory alloy; 27. high-conductivity memory alloy; 28. center block; 29. ​​identification arrow; 30. upper air duct; 31. lower air duct; 32. thermal conductive plate; 33. rectangular through groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 9 The present invention provides a technical solution: a portable cold compress device for pediatric surgical wound care, comprising an isolation airbag 1 and a left base 7 and a right base 8 fixedly arranged at both ends thereof, a plurality of straps 4 are arranged on the left base 7 and the right base 8, a cloth bag 2 for placing a medical ice pack is arranged on the upper layer of the isolation airbag 1, and a skin-friendly layer 5 in direct contact with the skin is arranged on the lower layer thereof, the isolation airbag 1 comprises an upper air cavity 101 and a lower air cavity 102 which are integrally formed and independently sealed, and a variable isolation mechanism is arranged on the isolation airbag 1 to adjust the gas volume in the upper air cavity 101 and the lower air cavity 102 according to temperature changes;

[0037] The variable isolation mechanism includes an inner displacement seat 24 arranged in the left base 7, and a receiving groove for the inner displacement seat 24 to slide horizontally is provided on the left base 7, a side wall of the receiving groove is fixedly connected with a temperature conducting plate 32, and an elastic temperature conducting sheet 6 is fixedly connected to the temperature conducting plate 32, and the elastic temperature conducting sheet 6 is embedded and fixed in the skin-friendly layer 5, and a temperature shifting component is provided on the left base 7 to drive the inner displacement seat 24 to slide freely in the receiving groove according to the temperature change at the temperature conducting plate 32;

[0038] The left base 7 is provided with an upper airway 30 and a lower airway 31, and the upper airway 30 and the lower airway 31 correspond to the upper air cavity 101 and the lower air cavity 102 respectively and are gas-connected.

[0039] The inner displacement seat 24 is provided with a clearance groove 25 corresponding to the upper airway 30 and the lower airway 31, and the inner displacement seat 24 is also provided with a rectangular through groove 33 communicating with the clearance groove 25, and the left base 7 includes an integrally formed air guide groove at a position corresponding to the rectangular through groove 33;

[0040] The cloth bag 2 is provided with a sealing belt 3 for sealing the medical ice bag, the head end of the sealing belt 3 is fixedly connected to the cloth bag 2, and the right base 8 is provided with a compression binding component for rolling up the tail end of the sealing belt 3 to fix the medical ice bag, and the right base 8 is also provided with an air blocking component for synchronously filling gas into the upper air cavity 101 and the lower air cavity 102.

[0041] like Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9As shown, when applying cold compress to a child patient, a medical ice bag is placed in a cloth bag 2, and the cloth bag 2 is fixedly connected to the isolation airbag 1 on one side thereof. The tail end of the sealing tape 3 on the cloth bag 2 is rolled up by a compression binding assembly, so that the sealing tape 3 can be pressed tightly against the medical ice bag after rolling up, thereby achieving the purpose of fixing the medical ice bag.

[0042] At the same time, the upper air cavity 101 and the lower air cavity 102 in the isolation air bag 1 are inflated synchronously through the air resistance component until the upper air cavity 101 and the lower air cavity 102 are basically full, and then the isolation air bag 1 and the sealing tape 3 are fixed to the wound position of the patient through the straps 4, and the skin-friendly layer 5 is in direct contact with the patient's skin surface. At the same time, multiple groups of straps 4 are provided with Velcro or buckles for use in conjunction, so as to achieve the purpose of freely adjusting the tightness according to the wound position, and to ensure that the cold compress device can be stably fixed to the patient's wound.

[0043] Among them, the low temperature of the medical ice bag is transmitted to the patient's skin surface through the isolation airbag 1 and the skin-friendly layer 5, and the low temperature of the medical ice bag prompts the inner displacement seat 24 to block the upper airway 30 and the lower airway 31, and then drives the air blocking component to inflate the upper air cavity 101 and the lower air cavity 102 after the upper airway 30 and the lower airway 31 are blocked.

[0044] At the same time, an elastic thermal conductive sheet 6 is embedded in the skin-friendly layer 5, and the elastic thermal conductive sheet 6 is fixed to the thermal conductive plate 32 by a fixed metal wire, so that the low temperature at the elastic thermal conductive sheet 6 can be conducted to the receiving groove, thereby driving the inner displacement seat 24 to move in the receiving groove through the temperature change at the thermal conductive plate 32. It should be noted that in actual use, as the use time of cold compresses such as medical ice bags increases, their own temperature will gradually increase. At the same time, in the initial stage of cold compress, the upper air cavity 101 and the lower air cavity 102 are basically in a full state. Therefore, a thicker isolation layer is formed between the medical ice bag and the skin surface. The purpose is to avoid low temperature from irritating the skin wound. However, as cold compresses such as medical ice bags gradually "melt", if the thickness of the isolation material remains unchanged, the cold compress effect on the wound position will gradually decrease.

[0045] Therefore, the skin-friendly layer 5 is in direct contact with the skin surface, and the temperature of the skin-friendly layer 5 is roughly the cold compress temperature sensed by the skin, and then the temperature there is conducted to the receiving groove, and the relative position of the inner displacement seat 24 in the receiving groove is dynamically adjusted according to the temperature there. When the cold compress temperature at the skin-friendly layer 5 increases, the relative positions of the give-way groove 25 on the inner displacement seat 24 and the upper air duct 30 and the lower air duct 31 can be adjusted so that one or both groups correspond to the give-way groove 25, thereby achieving the exhaust purpose of the upper air cavity 101, or realizing the common exhaust process of the upper air cavity 101 and the lower air cavity 102, so as to achieve the purpose of reducing the thickness of the insulation, thereby ensuring the cold compress effect on the skin wound.

[0046] In one of the more preferred embodiments, the temperature shift assembly includes a center block 28 slidably disposed in the receiving groove, the center block 28 is in sliding contact with the heat conducting plate 32, and low-conductivity temperature memory alloy 26 and high-conductivity temperature memory alloy 27 are respectively disposed on both sides of the center block 28;

[0047] The two ends of the low-conductivity temperature memory alloy 26 are fixedly connected to the inner displacement seat 24 and the middle block 28 respectively, and the two ends of the high-conductivity temperature memory alloy 27 are fixedly connected to the middle block 28 and the left base 7 respectively.

[0048] When the low-conductivity temperature memory alloy 26 recovers its deformation, the upper airway 30 communicates with the clearance groove 25 , and when both the low-conductivity temperature memory alloy 26 and the high-conductivity memory alloy 27 recover their deformation, both the upper airway 30 and the lower airway 31 communicate with the clearance groove 25 .

[0049] The low-conductivity temperature memory alloy 26 and the high-conductivity temperature memory alloy 27 are both in an elongated state in the initial state.

[0050] like Figure 9 As shown, in the natural state, that is, at room temperature, the roller body 9 and the edge plate 10 are stretched and deformed. At the same time, when the medical ice bag is placed on the cloth bag 2, the low temperature it emits will gradually be transmitted to the skin-friendly layer 5, and the low temperature will be transmitted to the thermal conductive plate 32 and the middle block 28 through the elastic thermal conductive sheet 6. When the temperature is gradually reduced to the temperature threshold of the low-conductivity temperature memory alloy 26 and the high-conductivity temperature memory alloy 27, the low-conductivity temperature memory alloy 26 and the high-conductivity temperature memory alloy 27 can restore the deformation, thereby driving the inner displacement seat 24 to move in the accommodating groove, and the temperature thresholds of the low-conductivity temperature memory alloy 26 and the high-conductivity temperature memory alloy 27 are different, so that the two can be driven to deform by gradual changes in temperature.

[0051] At the same time, when the low-conductivity temperature memory alloy 26 and the high-conductivity memory alloy 27 are in the initial state, their elongation deformation will not drive the inner displacement seat 24 to block the upper airway 30 and the lower airway 31. At this time, the upper airway 30 and the lower airway 31 both correspond to the make way groove 25. However, when the medical ice bag is placed on the cloth bag 2, its low temperature is conducted to the heat conduction plate 32 and is conducted to the containing groove through the middle block 28, thereby driving the low-conductivity temperature memory alloy 26 and the high-conductivity memory alloy 27 to restore their deformation. At this time, the inner displacement seat 24 blocks the upper airway 30 and the lower airway 31. Subsequently, the upper air cavity 101 and the lower air cavity 102 are inflated through the air resistance component. It should be noted that the low-conductivity temperature memory alloy 26 and the high-conductivity temperature memory alloy 27 will not be deformed due to the slight change in the temperature difference in the receiving groove caused by the filling of the gas in the upper air cavity 101 and the lower air cavity 102. Therefore, as the medical ice pack "melts", the temperature at the skin-friendly layer 5 gradually rises from a low temperature. At this time, the low-conductivity temperature memory alloy 26 is first elongated and deformed due to the temperature rise, and then the inner shift seat 24 first makes the clearance groove 25 and the rectangular through groove 33 opened thereon correspond to the upper airway 30, and then the high-conductivity memory alloy 27 is elongated and deformed to cause both the lower airway 31 and the upper airway 30 to correspond to the clearance groove 25.

[0052] Among them, when the upper airway 30 corresponds to the give way groove 25, the gas in the upper air cavity 101 escapes through the give way groove 25 and the rectangular through groove 33, thereby reducing the thickness of the insulator, so that the low temperature of the medical ice pack can be better transmitted to the skin-friendly layer 5. At the same time, as the medical ice pack continues to "melt", the temperature of the skin-friendly layer 5 reaches the temperature threshold of the high-conductivity memory alloy 27, and the high-conductivity memory alloy 27 stretches and deforms to enable the give way groove 25 to correspond to the lower airway 31, thereby driving the air in the lower air cavity 102 to be naturally discharged, so as to further reduce the thickness of the insulator. Therefore, in actual use, the thickness of the insulator can be dynamically adjusted by temperature changes during the cold compress process to ensure the cold compress effect on skin wounds, thereby improving the uniformity and stability of the cold compress effect.

[0053] Based on the temperature shift assembly embodiment, a center block 28 is fixedly connected to the upper surface of the inner shift seat 24, an arrow 29 slides through the air guide groove, and a scale line is fixedly connected to the left base 7 corresponding to the position of the arrow 29.

[0054] like Figure 9As shown, when inflating the upper air chamber 101 and the lower air chamber 102, it is necessary to ensure that the inner moving seat 24 has blocked the upper airway 30 and the lower airway 31. Among them, it is necessary for the low-conductivity temperature memory alloy 26 and the high-conductivity memory alloy 27 to drive the two to recover their deformation at the low temperature of the medical ice pack, so as to change the relative position of the inner moving seat 24 in the receiving groove. Therefore, by fixedly arranging a marking arrow 29 on the inner moving seat 24, through the relative position between the marking arrow 29 and the scale line, it is ensured that when the inner moving seat 24 has blocked the upper airway 30 and the lower airway 31, the inflation operation is carried out in the opposite side plate 10 and the lower air chamber 102.

[0055] Furthermore, the pressing and binding assembly includes a roller body 9 driven by a motor and freely rotating in the vertical direction. The roller body 9 rotates around a fixed axis on the rightward base 8, and the tail end of the sealing tape 3 is fixedly connected to the roller body 9.

[0056] As Figure 2 and Figure 5 shown, in the actual use process, the medical ice pack is placed on the cloth bag 2. When fixing the medical ice pack, the roller body 9 is driven by a micro-motor fixedly arranged on the rightward base 8 to rotate in the vertical direction, and then the tail of the sealing tape 3 is wound up. And as the sealing tape 3 is wound up, the sealing tape 3 gradually tightens, and finally can be attached to the medical ice pack and fix it. By covering the medical ice pack with the sealing tape 3, it can slow down the escape of cold air at the sealing tape 3, and thus delay the cold compress time.

[0057] On the basis of the embodiment of the pressing and binding assembly, the air resistance assembly includes an air sealing cylinder 21 fixedly connected to the rightward base 8. A horizontal rod 19 that reciprocates in the horizontal direction is arranged on the air sealing cylinder 21. A piston plate 20 is fixedly connected to the horizontal rod 19, and the outer peripheral surface of the piston plate 20 is in sliding contact with the inner wall of the air sealing cylinder 21;

[0058] The air sealing cylinder 21 includes an integrally formed air outlet and an air inlet. A return air chamber 22 that is in gas communication with both the upper air chamber 101 and the lower air chamber 102 is fixedly connected to the rightward base 8, and the return air chamber 22 is fixedly connected and communicated with the air outlet on the air sealing cylinder 21.

[0059] A central disk 11 is coaxially fixed on the roller body 9. A plurality of groups of ratchet teeth 12 arranged in an annular array are provided on the central disk 11. An inner ratchet wheel 13 is sleeved outside the central disk 11, and a plurality of groups of ratchet teeth 12 are meshed with the inner ratchet wheel 13;

[0060] A conical disk 23 is coaxially fixed on the inner ratchet wheel 13. A side plate 10 is fixedly connected to the rightward base 8, and the conical disk 23 rotates around a fixed axis on the side plate 10;

[0061] A bevel gear ring 14 is fixedly sleeved on the inner ratchet wheel 13. The bevel gear ring 14 is meshed and connected with a driven bevel gear 15. An installation plate 16 is fixedly connected to the rightward base 8. The driven bevel gear 15 rotates on the installation plate 16 about a fixed axis, and a coaxial swing rod 17 is fixedly arranged on the driven bevel gear 15. A connecting rod 18 that can freely deflect is arranged between the coaxial swing rod 17 and the horizontal rod 19. The two ends of the connecting rod 18 rotate about a fixed axis on the coaxial swing rod 17 and the horizontal rod 19 respectively.

[0062] As Figures 1 - 6 shown, when the roller body 9 rotates in the vertical direction, it can synchronously drive the central disk 11 to rotate synchronously. When the roller body 9 winds the sealing tape 3, it can drive the inner ratchet wheel 13 to rotate synchronously through the central disk 11 and multiple sets of pawls 12 arranged thereon, and drive the driven bevel gear 15 to rotate in the horizontal direction through the bevel gear ring 14 fixedly sleeved on the inner ratchet wheel 13.

[0063] Meanwhile, a coaxial swing rod 17 is fixedly arranged on the driven bevel gear 15. When the coaxial swing rod 17 rotates, it can drive the connecting rod 18 to deflect, and drive the horizontal rod 19 and the piston plate 20 to reciprocate in the air sealing cylinder 21 through the deflection of the connecting rod 18, so as to send gas into the air return cavity 22, and send the gas into the upper air cavity 101 and the lower air cavity 102 through the air return cavity 22.

[0064] It should be noted that one-way valves are arranged on both the air inlet and the air outlet integrally formed on the air sealing cylinder 21, and the valve ports of the two one-way valves are opposite. Therefore, when the piston plate 20 reciprocates in the air sealing cylinder 21, it can drive the external natural gas to enter the air sealing cylinder 21 through the air inlet, and send it into the upper air cavity 101 and the lower air cavity 102 from the air outlet and the air return cavity 22. Moreover, when it is necessary to release the sealing tape 3 to take out the medical ice bag after the cold compress is completed, at this time, the roller body 9 rotates reversely and does not drive the inner ratchet wheel 13 to rotate through the central disk 11. Therefore, when the pressing and binding assembly releases the sealing tape 3, it will not inflate the upper air cavity 101 and the lower air cavity 102.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable cold compress device for pediatric surgical wound care, comprising an isolation airbag (1) and a left base (7) and a right base (8) fixedly arranged at both ends thereof, wherein the left base (7) and the right base (8) are both provided with a plurality of straps (4), the upper layer of the isolation airbag (1) is provided with a cloth bag (2) for placing a medical ice pack and the lower layer thereof is provided with a skin-friendly layer (5) in direct contact with the skin, characterized in that: The isolation airbag (1) comprises an upper air chamber (101) and a lower air chamber (102) which are integrally formed and independently sealed, and a variable isolation mechanism is provided on the isolation airbag (1) for adjusting the amount of gas in the upper air chamber (101) and the lower air chamber (102) according to temperature changes; The variable isolation mechanism comprises an inner displacement seat (24) arranged in a left base (7), and a receiving groove for the inner displacement seat (24) to slide horizontally is provided on the left base (7), a side wall of the receiving groove is fixedly connected with a temperature conducting plate (32), and an elastic temperature conducting sheet (6) is fixedly connected to the temperature conducting plate (32), and the elastic temperature conducting sheet (6) is embedded and fixed in the skin-friendly layer (5), and a temperature shifting component is provided on the left base (7) for driving the inner displacement seat (24) to slide freely in the receiving groove according to the temperature change at the temperature conducting plate (32); The left-facing base (7) is provided with an upper airway (30) and a lower airway (31), and the upper airway (30) and the lower airway (31) correspond to the upper air cavity (101) and the lower air cavity (102) respectively and are gas-connected. The inner displacement seat (24) is provided with a clearance groove (25) at the position corresponding to the upper airway (30) and the lower airway (31), and the inner displacement seat (24) is also provided with a rectangular through groove (33) communicating with the clearance groove (25), and the left base (7) includes an integrally formed air guide groove at the position corresponding to the rectangular through groove (33); The cloth bag (2) is provided with a sealing belt (3) for sealing the medical ice bag, the head end of the sealing belt (3) is fixedly connected to the cloth bag (2), and the right base (8) is provided with a compression binding component for rolling up the tail end of the sealing belt (3) to fix the medical ice bag, and the right base (8) is also provided with an air blocking component for synchronously filling gas into the upper air cavity (101) and the lower air cavity (102).

2. A portable cold compress device for pediatric surgical wound care according to claim 1, characterized in that: The temperature shifting assembly comprises a middle block (28) slidably arranged in the receiving groove, the middle block (28) is in sliding contact with the heat conducting plate (32), and low-conductivity temperature memory alloy (26) and high-conductivity temperature memory alloy (27) are respectively arranged on both sides of the middle block (28); The two ends of the low-conductivity temperature memory alloy (26) are respectively fixedly connected to the inner displacement seat (24) and the middle block (28), and the two ends of the high-conductivity temperature memory alloy (27) are respectively fixedly connected to the middle block (28) and the left base (7).

3. A portable cold compress device for pediatric surgical wound care according to claim 2, characterized in that: When the low-conductivity temperature memory alloy (26) recovers its deformation, the upper airway (30) communicates with the clearance groove (25), and when both the low-conductivity temperature memory alloy (26) and the high-conductivity memory alloy (27) recover their deformation, both the upper airway (30) and the lower airway (31) communicate with the clearance groove (25).

4. A portable cold compress device for pediatric surgical wound care according to claim 3, characterized in that: The low-conductivity temperature memory alloy (26) and the high-conductivity temperature memory alloy (27) are both in an elongated state in an initial state.

5. A portable cold compress device for pediatric surgical wound care according to claim 2, characterized in that: The upper surface of the inner displacement seat (24) is fixedly connected with a marking arrow (29), the marking arrow (29) slides through the air guide groove, and a scale line is fixedly connected to the left base (7) at a position corresponding to the marking arrow (29).

6. A portable cold compress device for pediatric surgical wound care according to claim 1, characterized in that: The compression binding assembly comprises a roller body (9) driven by a motor and freely rotating in a vertical direction. The roller body (9) rotates on a right-hand base (8) with a fixed axis, and the tail end of the sealing belt (3) is fixedly connected to the roller body (9).

7. A portable cold compress device for pediatric surgical wound care according to claim 6, characterized in that: The air resistance assembly comprises an air sealing cylinder (21) fixedly connected to the right base (8), the air sealing cylinder (21) is provided with a horizontal rod (19) which reciprocates in the horizontal direction, the horizontal rod (19) is fixedly connected to a piston plate (20), and the outer peripheral surface of the piston plate (20) is in sliding contact with the inner wall of the air sealing cylinder (21); The air sealing cylinder (21) comprises an air outlet and an air inlet which are integrally formed, and a return air cavity (22) which is in gas communication with both the upper air cavity (101) and the lower air cavity (102) is fixedly connected to the right base (8), and the return air cavity (22) is fixedly connected to the air outlet on the air sealing cylinder (21).

8. A portable cold compress device for pediatric surgical wound care according to claim 7, characterized in that: A center disk (11) is coaxially fixed on the roller body (9), and a plurality of groups of ratchet pawls (12) arranged in a ring array are provided on the center disk (11). An inner ratchet (13) is provided on the outer ring of the center disk (11), and the plurality of groups of ratchet pawls (12) are meshedly connected with the inner ratchet (13); A conical disc (23) is coaxially fixed on the inner ratchet (13), a side plate (10) is fixedly connected to the right base (8), and the conical disc (23) rotates on the side plate (10) in a fixed axis; A bevel gear ring (14) is fixedly sleeved on the inner ratchet (13), and the bevel gear ring (14) is meshedly connected with a driven bevel gear (15). A mounting plate (16) is fixedly connected to the right base (8), and the driven bevel gear (15) rotates on the mounting plate (16) in a fixed axis. A coaxially aligned swing rod (17) is coaxially fixed on the driven bevel gear (15), and a freely deflectable connecting rod (18) is provided between the coaxially aligned swing rod (17) and the transverse rod (19), and two ends of the connecting rod (18) rotate on the coaxially aligned swing rod (17) and the transverse rod (19) respectively.

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