A water-absorbable surgical warming blanket

Abstract

This utility model relates to the field of surgical thermal insulation technology, specifically to a water-absorbing surgical heating blanket, comprising a main body, a heating layer and a waterproof layer covering the upper surface of the heating layer, and an absorbent layer on the upper surface of the waterproof layer, which can be directly applied to the patient's skin. The waterproof layer is located between the heating layer and the absorbent layer, and the absorbent layer directly contacts the patient, preventing intraoperative fluids from entering the heating layer and affecting its heating function. The heat from the heating layer passes through the waterproof and absorbent layers and acts on the patient, ensuring stable body temperature. The absorbent layer absorbs intraoperative fluids, preventing the accumulation of intraoperative irrigation fluids or body fluids on the upper surface of the waterproof layer, thereby reducing local immersion, mitigating heat loss, avoiding the risk of iatrogenic hypothermia caused by localized low-temperature areas, and preventing the possibility of contact dermatitis caused by prolonged fluid immersion, thus reducing the likelihood of postoperative complications such as skin redness and maceration.

Description

Technical Field

[0001] This utility model relates to the field of surgical warming technology, and in particular to a water-absorbing surgical warming blanket. Background Technology

[0002] Perioperative hypothermia (IPH) is one of the key complications to prevent during surgery. Its pathogenesis involves multiple pathophysiological factors: increased radiative heat loss due to surgical field exposure, evaporative heat loss from body cavity irrigation fluids, the inhibitory effect of anesthetic drugs on the thermoregulatory center, and heat loss due to the evaporation of skin disinfectants. Elderly and neonatal patients are particularly at higher risk. Elderly patients have reduced thermoregulation and lower basal metabolic rate, while neonates have an underdeveloped thermoregulatory center and a significantly higher body surface area to weight ratio. These two groups have a 3-5 times higher risk of developing IPH than ordinary adults. IPH not only causes acute symptoms such as chills and metabolic acidosis but also affects the effectiveness of anesthesia and surgery. Previously, routine blanket covering and warming care were commonly used in clinical practice. While this provided some warmth, the overall intervention effect was not ideal, and timely temperature regulation during surgery was not possible.

[0003] Inflatable heating blankets can provide continuous warmth, maintaining or increasing body temperature and effectively preventing complications such as hypothermia. However, the surface coating of currently used inflatable heating blankets is waterproof. During surgery, irrigation fluids or bodily fluids can easily accumulate on the waterproof surface. Prolonged immersion in this accumulated liquid can exacerbate heat loss, and the resulting localized low-temperature areas can lead to iatrogenic hypothermia. Furthermore, prolonged liquid immersion can cause contact dermatitis, leading to postoperative complications such as skin redness and maceration. The difficulty in changing the heating blanket during surgery further exacerbates this phenomenon, posing a threat to postoperative skin care and wound healing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing warming blankets used in clinical practice, which have a waterproof coating: during surgery, irrigation fluid or body fluids easily accumulate on the waterproof surface, which can easily soak the patient and exacerbate the loss of body temperature. Furthermore, the local low temperature area caused by the accumulated liquid can lead to the risk of iatrogenic hypothermia. This invention provides a water-absorbing surgical warming blanket.

[0005] This utility model provides a water-absorbing surgical heating blanket, including a body, the body having a heating layer and a waterproof layer covering the upper surface of the heating layer, the upper surface of the waterproof layer having a water-absorbing layer, the water-absorbing layer being able to directly contact the patient's skin.

[0006] The absorbent surgical heating blanket of this invention has a waterproof layer located between the heating layer and the absorbent layer. The absorbent layer directly contacts the patient, preventing intraoperative fluids from entering the heating layer and affecting its heating function. The heat from the heating layer passes through the waterproof and absorbent layers and acts on the patient, ensuring stable body temperature. The absorbent layer absorbs intraoperative fluids, preventing the accumulation of irrigation fluids or body fluids on the surface of the waterproof layer, thereby reducing local immersion, minimizing heat loss, avoiding the risk of iatrogenic hypothermia caused by localized low-temperature areas, and preventing the possibility of contact dermatitis caused by prolonged fluid immersion. This also reduces the likelihood of postoperative complications such as skin redness and maceration.

[0007] Preferably, the absorbent layer comprises a polyacrylic acid superabsorbent polymer structure. It absorbs water extremely quickly, allowing the product to absorb moisture more rapidly. Its absorbency is almost unaffected by external factors such as temperature, pH, and salinity, maintaining stable absorbency even in complex environments. It is low in toxicity, non-polluting, and biodegradable, and will not negatively impact the ecological environment.

[0008] Preferably, the absorbent layer is detachably fixed to the upper surface of the waterproof layer, and the absorbent layer can be replaced in time during the operation to keep the surgical area dry and clean, thereby avoiding the accumulation of irrigation fluid or body fluid on the upper surface of the waterproof layer during the operation.

[0009] Preferably, the waterproof layer is fixedly connected to the top with Velcro, and the waterproof layer is detachably fixed to the bottom of the absorbent layer via the Velcro, making installation and removal convenient.

[0010] Preferably, the absorbent layer includes a first splicing pad and a second splicing pad continuously disposed on the upper surface of the waterproof layer, wherein the first splicing pad and the second splicing pad are respectively detachably fixed to the waterproof layer by the Velcro.

[0011] The first and second splicing pads can be removed while the patient is lying on their side, avoiding the need to lift the patient. It is also more convenient to replace the waterproof layer and has less impact on the patient.

[0012] Preferably, the heating layer is disposed on the inner wall of the waterproof layer, the heating layer has a cavity inside, and the heating layer has connection interfaces on both sides, which can be connected to an external hot air blower through a circulation pipe.

[0013] An external hot air blower circulates air into the cavity inside the heating layer through a circulation pipe and connection interface to ensure uniform heating.

[0014] Preferably, the connection interface is threaded to the circulation pipe for easy installation and disassembly;

[0015] And / or, the size of the circulation pipe is 10mm-20mm, to avoid the circulation pipe being too small, resulting in weak ventilation and heating capacity, and to avoid the circulation pipe being too large, resulting in inconvenience in use.

[0016] Preferably, the connection interface can be opened and closed;

[0017] The connection interfaces on both sides are opened and connected to external hot air blowers through circulation pipes respectively;

[0018] One of the connection interfaces is open and connected to an external hot air blower through a circulation pipe, while the other connection interface is closed, and the waterproof layer above the heating layer is breathable.

[0019] Preferably, the thickness of the absorbent layer is 2mm-10mm to ensure water absorption capacity and reduce the impact on the upward heating of the heating layer.

[0020] Preferably, the body has a length and a width, with the length being 1m-1.4m and the width being 50cm-70cm, which is compatible with international operating table standards, avoiding being too large to affect the surgery and too small to meet the purpose of whole-body heating for children.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This invention provides a water-absorbing surgical heating blanket. By placing a waterproof layer between the heating layer and the absorbent layer, the absorbent layer directly contacts the patient, preventing intraoperative fluids from entering the heating layer and affecting its heating function. The heat from the heating layer passes through the waterproof and absorbent layers and acts on the patient, ensuring stable body temperature. The absorbent layer absorbs intraoperative fluids, preventing the accumulation of irrigation fluids or body fluids on the surface of the waterproof layer, thereby reducing local immersion, minimizing heat loss, avoiding the risk of iatrogenic hypothermia caused by localized low-temperature areas, and preventing the possibility of contact dermatitis caused by prolonged fluid immersion. This also reduces the likelihood of postoperative complications such as skin redness and maceration. Attached Figure Description

[0023] Figure 1 A schematic diagram of a water-absorbing surgical warming blanket;

[0024] Figure 2 A schematic diagram of the layers of an absorbent surgical warming blanket;

[0025] Figure 3 This is an exploded diagram of an absorbent surgical warming blanket.

[0026] The diagram is marked as follows: 0, main body; 1, heating layer; 11, cavity; 12, connection interface; 2, waterproof layer; 3, absorbent layer; 31, first splicing pad; 32, second splicing pad; 4, Velcro; 5, circulation pipe; 6, external hot air blower. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0028] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are set as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," "parallel," or "coaxial" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0030] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0031] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0032] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0033] Example 1

[0034] like Figures 1-2 As shown, a water-absorbing surgical heating blanket includes a body 0, the body 0 having a heating layer 1 and a waterproof layer 2 covering the upper surface of the heating layer 1, the upper surface of the waterproof layer 2 having a water-absorbing layer 3, the water-absorbing layer 3 being able to directly contact the patient's skin.

[0035] The waterproof layer 2 can simply be formed on the upper surface of the heating layer 1, and can be made of polyethylene, polypropylene nonwoven fabric, or film. The heating layer 1 can be any layer capable of heating, allowing the heat from the heating layer 1 to pass through the waterproof layer 2 and the absorbent layer 3 and then act on the patient, thus ensuring the patient's body temperature remains stable.

[0036] like Figure 1 and Figure 2 As shown, the heating layer 1 is disposed on the inner wall of the waterproof layer 2. The heating layer 1 has a cavity 11 inside. The heating layer 1 has connection interfaces 12 on both sides. The connection interfaces 12 can be connected to an external hot air blower 6 through the circulation pipe 5. The external hot air blower 6 heats the cavity 11 inside the heating layer 1 by circulating air through the circulation pipe 5 and the connection interface 12, so as to ensure the uniformity of heating.

[0037] In an optional implementation, the connection interface 12 can be opened and closed. For example, the connection interface 12 can be sealed and closed by a cover, and the cover can be opened. Of course, other methods that can enable the connection interface 12 to be opened and closed can also be used.

[0038] In one embodiment, the connection interfaces 12 on both sides are opened and connected to an external hot air blower 6 through circulation pipes 5 respectively. That is, the external hot air blower 6 passes hot air into the cavity 11 through one side circulation pipe 5, the hot air exchanges heat with the upper part through the waterproof layer 2, and the cavity 11 discharges gas through the other side circulation pipe 5.

[0039] In another embodiment, one of the connection interfaces 12 is open and connected to an external hot air blower 6 through a circulation pipe 5, while the other connection interface 12 is closed. The waterproof layer 2 is breathable, meaning that the external hot air blower 6 passes hot air into the cavity 11 through the circulation pipe 5 on one side, and then the hot air passes through the waterproof layer 2 and the absorbent layer 3 to heat and keep the patient above warm.

[0040] In both of the above methods, the connection interfaces 12 on both sides can be set to correspond to the patient's head and feet, allowing medical staff to choose whether to place the external hot air blower 6 on the head side or the foot side according to the surgical situation, which facilitates heating control.

[0041] In an optional embodiment, the connection interface 12 is threadedly connected to the circulation pipe 5 for easy installation and disassembly.

[0042] In an optional embodiment, the size of the circulation pipe 5 is 10mm-20mm, to avoid the circulation pipe being too small and having weak ventilation and heating capacity, and to avoid the circulation pipe being too large and causing inconvenience in use.

[0043] The absorbent layer 3 is a layer capable of absorbing water. It needs to cover the upper surface of the waterproof layer 2 to reduce the possibility of water accumulation on the upper surface of the waterproof layer 2. The absorbent layer does not need to completely cover the upper surface of the waterproof layer 2, but it needs to ensure that the patient does not directly contact the upper surface of the waterproof layer 2, and the absorbent layer needs to be thermally conductive. In an optional embodiment, the absorbent layer 3 comprises a polyacrylic acid superabsorbent polymer structure. Its water absorption speed is extremely fast, allowing the product to absorb moisture more quickly. Its water absorption capacity is almost unaffected by external factors such as temperature, pH value, and salinity, maintaining stable water absorption in complex environments. It is low in toxicity, non-polluting, and biodegradable, and will not have a negative impact on the ecological environment.

[0044] In an optional embodiment, the absorbent layer is placed on or fixed to the upper surface of the waterproof layer 2. Preferably, the absorbent layer 3 is detachably fixed to the upper surface of the waterproof layer 2, allowing for timely replacement of the absorbent layer 3 during surgery. This helps maintain the dryness and cleanliness of the surgical area, thereby preventing the accumulation of intraoperative irrigation fluid or body fluids on the upper surface of the waterproof layer 2. Furthermore, a Velcro 4 is fixedly connected to the upper part of the waterproof layer 2, and the absorbent layer 3 is detachably fixed to the lower part of the waterproof layer 2 via the Velcro 4, facilitating installation and removal.

[0045] In optional implementations, such as Figure 1 and Figure 3 As shown, the absorbent layer 3 includes a first splicing pad 31 and a second splicing pad 32 continuously disposed on the upper surface of the waterproof layer 2. The first splicing pad 31 and the second splicing pad 32 are respectively detachably fixed to the waterproof layer 2 by the Velcro 4. This allows the patient to remove the corresponding first splicing pad 31 and second splicing pad 32 while lying on their side, avoiding the need to lift the patient. This makes replacing the waterproof layer 2 more convenient and has less impact on the patient.

[0046] In an optional embodiment, the thickness of the absorbent layer 3 is 2mm-10mm. A thickness greater than or equal to 2mm ensures water absorption capacity, while a thickness less than or equal to 10mm reduces the impact on the upward heating of the heating layer.

[0047] Since the heating method of this application uses an external hot air blower 6 to blow air into the cavity 11 of the heating layer 1, this heating support method is more suitable for lighter patients, and therefore more suitable for pediatric patients. In an optional embodiment, the body 0 has a length and a width, to Figure 1 As shown, the length of the main body 0 is 1m-1.4m and the width of the main body 0 is 50cm-70cm, which is compatible with the international standard of operating table, avoiding being too large to affect the operation and too small to meet the purpose of whole-body heating for children.

[0048] The absorbent surgical heating blanket described in this embodiment uses a blower-heated method. The patient can sink into the heating blanket, and the areas of the blanket not pressed by the patient will bulge upwards and wrap around the patient. The heating blanket can provide efficient and uniform heating. A waterproof layer is provided between the heating layer 1 and the absorbent layer 3 to ensure the heating blanket's waterproof performance, preventing liquids generated during surgery from entering the heating layer 1 and affecting its heating function. The main body material of the heating layer 1 and the waterproof layer is a common everyday consumer material with mature manufacturing technology, low cost, and easy production and use, without placing an excessive financial burden on the patient, making it economical and practical. The absorbent layer 2, which directly contacts the patient, facilitates the absorption of liquids during surgery, keeping the surgical area dry and clean. The absorbent layer 2 is removable and can be replaced promptly during surgery to maintain its absorbency, preventing the accumulation of intraoperative irrigation fluid or body fluids on the surface of the waterproof layer, thereby reducing local immersion for the patient. This helps to enhance patient temperature / skin management, reduce the risk of intraoperative hypothermia, promote postoperative recovery, improve the patient's surgical experience, and increase patient satisfaction.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water-absorbing surgical heating blanket, comprising a body (0), characterized in that, The body (0) is provided with a heating layer (1) and a waterproof layer (2) covering the upper surface of the heating layer (1). The upper surface of the waterproof layer (2) is provided with a water-absorbing layer (3), which can be directly used to contact the patient's skin.

2. The absorbent surgical heating blanket according to claim 1, characterized in that, The absorbent layer (3) comprises a polyacrylic acid superabsorbent polymer structure.

3. The absorbent surgical heating blanket according to claim 1, characterized in that, The absorbent layer (3) is detachably fixed to the upper surface of the waterproof layer (2).

4. The absorbent surgical heating blanket according to claim 3, characterized in that, The waterproof layer (2) is fixedly connected to the top with Velcro (4), and the waterproof layer (2) is detachably fixed to the bottom of the absorbent layer (3) via the Velcro (4).

5. The absorbent surgical heating blanket according to claim 4, characterized in that, The absorbent layer (3) includes a first splicing pad (31) and a second splicing pad (32) continuously disposed on the upper surface of the waterproof layer (2). The first splicing pad (31) and the second splicing pad (32) are respectively detachably fixed to the waterproof layer (2) by the Velcro (4).

6. A water-absorbing surgical warming blanket according to any one of claims 1-5, characterized in that, The heating layer (1) is disposed on the inner wall of the waterproof layer (2). A cavity (11) is provided inside the heating layer (1). Connection interfaces (12) are provided on both sides of the heating layer (1). The connection interfaces (12) can be connected to an external hot air blower (6) through a circulation pipe (5).

7. The absorbent surgical heating blanket according to claim 6, characterized in that, The connection interface (12) is threadedly connected to the circulation pipe (5); And / or, the size of the circulation tube (5) is 10mm-20mm.

8. The absorbent surgical heating blanket according to claim 6, characterized in that, The connection interface (12) can be opened and closed; The connection interfaces (12) on both sides are opened and connected to the external hot air blower (6) through the circulation pipe (5); One of the connection interfaces (12) is open and connected to an external hot air blower (6) through a circulation pipe (5), while the other connection interface (12) is closed, and the waterproof layer (2) above the heating layer (1) is breathable.

9. A water-absorbing surgical warming blanket according to any one of claims 1-5, characterized in that, The thickness of the absorbent layer (3) is 2mm-10mm.

10. A water-absorbing surgical warming blanket according to any one of claims 1-5, characterized in that, The body (0) has a length and a width. The length of the body (0) is 1m-1.4m and the width of the body (0) is 50cm-70cm.

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