Warm quilt

Abstract

The present invention discloses a thermal blanket, which relates to the field of medical device technology. The present invention includes a heating blanket, a heater, and a thermal blanket arranged on the heating blanket. The heating blanket is provided with a heating chamber that cooperates with the heater, and the heating chamber divides the heating blanket into an upper heating blanket and a lower heating blanket. Three sets of sutures are sewn between the upper heating blanket and the lower heating blanket, and each set of sutures includes a first suture located on both sides of the central axis of the heating blanket and a second suture on the central axis. The present invention uses the three sets of sutures sewn inside the heating blanket to enable the heating blanket to swell quickly and evenly, thereby reducing the gap between the heating blanket and the patient when it swells, which causes temperature fluctuations.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a warming quilt. Background Art

[0002] In clinical practice, many patients experience chills and a drop in body temperature after anesthesia surgery, which can lead to serious complications such as acute pulmonary embolism, myocardial infarction, and sudden death. To address these issues, after the patient enters the anesthesia recovery room for observation, the anesthesia nurse will provide the patient with a thermal blanket for warmth. Existing thermal blankets are commonly used in two ways: 1. Cover the patient with a sheet and then a pure cotton blanket. The air outlet of a heater is placed between the sheet and the blanket at the patient's feet. The heater's temperature and wind speed are adjusted, and the heater blows air at a corresponding temperature at high or low speed to provide warmth to the patient. 2. Use a disposable body surface warming blanket on the patient. The blanket is hollow and has an air inlet at the rear end. The heater's air outlet can be connected to the air inlet. The heater's temperature and wind speed are adjusted, and the heater blows air at a corresponding temperature at high or low speed, causing the blanket to inflate according to the pattern, forming an inflatable blanket to provide warmth to the patient.

[0003] The sheets and blankets in the first method are reusable, which is more economical, and the material is highly acceptable to patients. However, the air blown out by the heater in this method cannot inflate the quilt, and the heat can only gather at one end of the patient's feet, resulting in uneven heating of the patient's body and a poor experience. The second method is a surface heating blanket, which is a disposable consumable. It is made of polypropylene non-woven fabric, which is lighter and has a poor physical sensation for patients. At the same time, after being inflated by a heater, although the heat will fill the entire quilt, the sewing pattern is several vertical lines, which will form several inflatable straight circular tubes. At this time, large gaps will be generated between the circular tubes, which cannot be close to the patient's body. Moreover, these gaps are in direct contact with the outside space, which is easy to lose temperature. In addition, it is expensive, which increases the cost for patients. Summary of the Invention

[0004] The purpose of the present invention is to provide a thermal quilt to solve the technical problem in the prior art that the thermal quilt is prone to heat loss.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions:

[0006] A thermal quilt comprises a heating blanket and a heater. A heating chamber is provided in the heating blanket, which divides the heating blanket into an upper heating blanket and a lower heating blanket. An air inlet is provided at the rear end of the heating blanket, and the air inlet is communicated with the heating chamber. A warm air pipe is connected to the output end of the heater, and the other end of the warm air pipe is communicated with the air inlet. The quilt is characterized in that three groups of sutures are sewn from top to bottom between the upper heating blanket and the lower heating blanket, and each group of sutures includes first sutures symmetrically arranged on both sides of the vertical central axis of the heating blanket, and the gaps between the heating chambers formed by each group of sutures are not in direct contact with the outside air.

[0007] Furthermore, the first suture line is in a straight line shape.

[0008] Furthermore, each set of sutures is in a figure eight shape.

[0009] Furthermore, the length of the first suture line of each of the three groups of suture lines gradually shortens and the distance from the edge of the heating blanket remains unchanged.

[0010] Furthermore, a second suture line is provided between each group of suture lines located on the vertical center axis of the heating blanket.

[0011] Furthermore, a snap-on assembly is provided in the air inlet, and the snap-on assembly includes an air inlet pipe installed in the air inlet, guide grooves are provided on opposite sides of the inner wall of the air inlet pipe, a snap-on groove is provided on the inner wall of the air inlet pipe, and two guide protrusions that cooperate with the guide groove and the snap-on groove are provided on the circumferential end of the warm air pipe.

[0012] Furthermore, an extrusion assembly is installed in the air inlet pipe, and the extrusion assembly includes a pressure plate elastically fitted in the air inlet pipe. A sealing gasket is installed on the circumference of the end of the air inlet pipe, and the sealing gasket is arranged above the guide protrusion.

[0013] Furthermore, a thermal insulation blanket is provided above the heating blanket and is detachably connected to the heating blanket through a plurality of connectors that cooperate with each other.

[0014] Furthermore, the heating blanket is a cotton blanket and the thermal insulation quilt is a polyester fiber quilt.

[0015] The embodiments of the present invention have the following beneficial effects:

[0016] 1. The present invention uses three sets of sutures sewn inside the heating blanket. Its suture structure can make the heating blanket swell evenly and quickly, and the gaps between the heating cavities formed by each set of sutures are not in direct contact with the outside air. This can reduce the temperature leakage caused by the gaps between the disposable heating blanket and the patient when it is swollen and directly contacting the outside air in the prior art, and has a good heat preservation effect.

[0017] 2. The thermal insulation quilt of the present invention is also provided with a snap-fit assembly and an extrusion assembly at the air inlet, which can not only firmly connect the warm air pipe, but also play a good sealing role, thereby increasing the heat transmission efficiency.

[0018] 3. By setting the thermal blanket with polyester fiber cloth as the material, the non-breathable property of the thermal blanket can be used to lock in the heat dissipated by the heating blanket, thereby further improving the warmth-keeping effect of the thermal blanket.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the thermal quilt of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the thermal quilt of the present invention when viewed from above;

[0023] Figure 3 This is a schematic structural diagram of a first embodiment of the thermal quilt of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a second embodiment of the thermal quilt of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a third embodiment of the thermal quilt of the present invention;

[0026] Figure 6 This is a schematic structural diagram of a fourth embodiment of the thermal quilt of the present invention;

[0027] Figure 7 This is a schematic structural diagram of a fifth embodiment of the thermal quilt of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the snap-fit assembly of the thermal quilt of the present invention;

[0029] Figure 9 This is a schematic diagram of the warm air duct structure of the warm quilt of the present invention;

[0030] The above drawings include the following reference numerals:

[0031] Heating blanket 1, upper heating blanket 101, lower heating blanket 102, thermal insulation quilt 2, connector 3, warm air pipe 4, heater 5, first suture line 7, second suture line 6, air inlet 8, air inlet pipe 9, guide groove 10, card slot 11, pressure plate 12, spring 13, groove 14, guide protrusion 15, sealing gasket 16, heating chamber 17, card assembly 18. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is not intended to limit the present invention, its application, or use in any way.

[0033] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0034] Figure 1-3 Shown is a first embodiment of a warm quilt of the present invention, as Figure 1-3 As shown, the thermal quilt of the present invention includes a heating blanket 1 and a heater 5. A heating chamber 17 is provided in the heating blanket 1, and the heating chamber 17 divides the heating blanket 1 into an upper heating blanket 101 and a lower heating blanket 102. An air inlet 8 is provided at the tail end of the heating blanket 1, and the air inlet 8 is communicated with the heating chamber 17. The output end of the heater 5 is connected to a warm air pipe 4, and the other end of the warm air pipe 4 is communicated with the air inlet 8; five vertical sutures are sewn from left to right between the upper heating blanket 101 and the lower heating blanket 102. Due to the use of a pure cotton structure, the bulging degree of the heating chamber of this embodiment is smaller than that of the prior art, so the gap is also smaller, and the temperature run-off degree is lighter than that of the disposable body surface heating blanket of the prior art, but its gap can still be exposed to the outside air.

[0035] One aspect of the application of this embodiment is: when a patient is sent to an anesthesia recovery room, if the medical staff determines that the patient needs to use a warm blanket, they first cover the patient's body with the heating blanket 1, and then turn on the heater 5 to generate warm air and deliver it into the heating blanket 1 to keep the patient warm. It should be noted that all electrical devices involved in this application can be powered by batteries or external power supplies.

[0036] Figure 4A second embodiment of the thermal blanket is shown. The structural difference between this embodiment and the first embodiment is that the stitching line structure is changed to three groups of stitching lines sewn from top to bottom between the upper heating blanket 101 and the lower heating blanket 102, and each group of stitching lines includes first stitching lines 7 that are symmetrical and in a straight line on both sides of the vertical central axis of the heating blanket 1; the advantage of changing the stitching line structure to a straight line is that the gaps between the heating cavities formed by each group of stitching lines cannot directly contact the outside air, and the thermal insulation effect is very good.

[0037] Figure 5 The third embodiment of the thermal blanket is shown. Its suture structure is that each group of sutures is in an eight-shaped shape. With this structure, the inflation speed can be faster than the second embodiment, which is more conducive to the patient's warmth preservation. At the same time, the gaps between the heat chambers cannot be directly exposed to the outside air, and the thermal insulation effect is also very good.

[0038] Figure 6 The fourth embodiment of the thermal blanket is shown. The structural difference between this embodiment and the third embodiment is that the suture line structure is changed to three groups of suture lines from top to bottom. The length of the first suture line 7 gradually shortens with each group from top to bottom and the distance from the edge of the heating blanket 1 remains unchanged; the inflation speed of this embodiment is faster than that of the third embodiment.

[0039] Figure 7 The fifth embodiment of the thermal blanket is shown. The structural difference between this embodiment and the fourth embodiment lies in the addition of a second suture line 6 between each group of suture lines located on the vertical central axis of the heating blanket 1. Although the inflation speed of this embodiment is slightly slower than that of the fourth embodiment, due to the addition of the second suture line 6, the heating cavity in the middle of the heating blanket is flatter, the gap is smaller, and the heat preservation degree is higher. The flatness of the entire heating blanket is the best among all the embodiments, and the patient acceptance is high.

[0040] Figure 8-9 The figure shows an embodiment of the thermal insulation quilt of the present invention using a snap-on assembly and an extrusion assembly. In this embodiment, a snap-on assembly 18 is provided in the air inlet 8. The snap-on assembly 18 includes an air inlet pipe 9 installed in the air inlet 8. Guide grooves 10 are provided on opposite sides of the inner wall of the air inlet pipe 9. A snap-on groove 11 is provided on the inner wall of the air inlet pipe 9. Two guide protrusions 15 that cooperate with the guide grooves 10 and the snap-on grooves 11 are provided on the circumferential end of the warm air pipe 4. The spacing between the guide grooves 10 gradually decreases from the inlet end to the outlet end of the air inlet pipe 9.

[0041] When the warm air duct 4 needs to be installed, the warm air duct 4 is inserted into the air inlet duct 9, and the warm air duct 4 is pushed so that the warm air duct 4 moves along the guide groove 10 on the air inlet duct 9 through the guide protrusion 15. After moving to the outside of the guide groove 10, the warm air duct 4 is rotated so that the guide protrusion 15 is snapped into the slot 11, and the installation of the warm air duct is completed.

[0042] In order to improve the sealing between the warm air pipe 4 and the air inlet pipe 9 after installation, the following two embodiments are proposed:

[0043] Example 1: Figure 4 As shown, the air inlet pipe 9 of this embodiment is also equipped with an extrusion assembly, which includes a pressure plate 12 that is elastically fitted in the air inlet pipe 9, a sealing gasket 16 is installed on the circumferential side of the end of the air inlet pipe 9, and the sealing gasket 16 is arranged above the guide protrusion 15. A groove 14 is opened in the air inlet pipe 9, and the pressure plate 12 is slidably fitted in the groove 14, and a spring 13 is installed between the pressure plate 12 and the groove 14.

[0044] By setting the sealing gasket 16, after the guide protrusion 15 is engaged with the card slot 11, the sealing gasket 16 can cover the air inlet pipe 9, and the elasticity of the spring 13 drives the pressure plate 12 to squeeze the sealing gasket 16, thereby improving the sealing between the air inlet pipe 9 and the warm air pipe 4. The sealing gasket 16 can be any one of the silicone pads and rubber pads in the existing technology.

[0045] Example 2: In this embodiment, a plurality of rope bodies are provided on the peripheral side of the outer wall of the air inlet pipe 9. The provided rope bodies can facilitate users to use the rope bodies to wrap around the air inlet pipe 9, thereby improving the sealing between the air inlet pipe 9 and the warm air pipe 4. The rope body can be any one of the Velcro ropes and flat elastic bands in the existing technology.

[0046] like Figure 1 As shown, the heating blanket 1 and the thermal blanket 2 of this embodiment are provided with a plurality of interfitting connectors 3. The heating blanket 1 and the thermal blanket 2 are detachably connected by the connectors 3. The connectors 3 can be any of the conventional snap fasteners, soft rubber needles, safety pins, or fasteners. The connectors 3 can secure and connect the heating blanket 1 and the thermal blanket 2, making it easier for medical staff to clean the heating blanket 1 and the thermal blanket 2 separately.

[0047] In the above embodiment, the heating blanket 1 is a cotton blanket, and the thermal blanket 2 is a polyester blanket. By making the heating blanket 1 a cotton blanket, it is heavier and softer than disposable non-woven fabrics, and can better fit the body. Cotton is also breathable, facilitating the passage of warm air and warming the patient. By making the thermal blanket 2 a polyester blanket, the polyester blanket is airtight and has a strong heat-locking effect. Combining it with the heating blanket 1 can enhance the warmth of the thermal blanket.

[0048] The length of the thermal quilt is 150 cm and the width is 144 cm. The heating chamber 17 is located in the middle of the heating blanket 1, and the width of the heating chamber 17 is 106 cm and the length is 150 cm. The air inlet 8 is opened in the middle of one side of the heating chamber 17, and the opening length of the air inlet 8 is 16 cm and the depth is 10 cm. The three groups of stitches are divided into front stitches, middle stitches and rear stitches from one end to the other end of the air inlet 8. The three groups of stitches are 35 cm apart, and the length of the front stitches is 34 cm, the length of the middle stitches is 28 cm, and the length of the rear stitches is 25 cm. The end of the stitches on the same side close to the inner wall of the heating chamber 17 and the inner wall of the heating chamber 17 are 8 cm apart.

[0049] The above-mentioned embodiments can be combined with each other.

[0050] The inflation time of the disposable body surface warming blanket of the prior art was compared with that of each embodiment of the present invention, and the time from the initial state to the completion of inflation of each embodiment was counted, and the data shown in Table 1 were obtained:

[0051] Table 1: Comparison of inflation time, unit: seconds

[0052] plan Inflatable usage time Performance after inflation Disposable body surface warming blanket of prior art 12 seconds It forms multiple straight cylinders with large gaps between them. The gaps are in direct contact with the outside air, making it easy for temperature to escape. First embodiment of the present invention 130 seconds Because it is made of pure cotton, although it also has a straight cylinder, the bulging degree is not high and the gap is smaller. The temperature loss is less than that of the disposable surface heating blanket in the existing technology, but its gaps can still be exposed to the outside air. Second embodiment of the present invention 70 seconds The gaps between the heat chambers cannot directly contact the outside air, and the thermal insulation effect is very good The third embodiment of the present invention 40 seconds Same as above Fourth embodiment of the present invention 20 seconds Same as above Fifth embodiment of the present invention 25 seconds The thermal insulation effect is the best among all embodiments

[0053] As can be seen from the table above:

[0054] 1. The inflation time of the "disposable body surface warming blanket of the prior art" and the "first embodiment of the present invention" using the same suture structure is very different, more than ten times. Since the two have the same structure, this huge difference can only be caused by the different materials of the two. The disposable body surface warming blanket is made of polypropylene non-woven fabric, while the first embodiment of the present invention is made of pure cotton. Since this structure takes too long to inflate, it is not conducive to the patient's warmth and may cause severe chills. Therefore, if pure cotton material is used, the suture structure in the prior art cannot be used, that is, the first embodiment of the present invention cannot be used.

[0055] 2. The second and third embodiments of the present invention adopt a stitching structure that is completely different from the prior art. The gaps therein cannot directly contact the outside air, and the heat preservation effect is very good. Moreover, the inflation time is faster than that of the first embodiment.

[0056] 3. The fourth and fifth embodiments of the present invention are based on the third embodiment, and optimize the suture structure, gradually shortening the suture length, greatly speeding up the inflation time, thereby providing services to patients faster. At the same time, a second suture line 6 is added to the fifth embodiment, and the heating cavity in the middle of the heating blanket is flatter, with smaller gaps and higher thermal insulation. At the same time, the flatness of the entire heating blanket is the best among all embodiments, and patients have a high degree of acceptance.

[0057] The following table lists experimental data from the fifth embodiment of the present invention and the prior art disposable body surface warming blanket, respectively. The Wrench scale is used, with Grade 0 indicating no shivering; Grade 1 indicating piloerection and / or peripheral vasoconstriction and / or peripheral cyanosis, but no tremor; Grade 2 indicating tremor in only one muscle group; Grade 3 indicating tremor in more than one muscle group, but not whole-body tremor; and Grade 4 indicating whole-body tremor. Shivering is measured at 15-minute intervals for each patient from admission to the anesthesia recovery room until 60 minutes have passed, for a total of five measurements. The data measured upon admission refers to the initial data immediately after the patient is wheeled into the anesthesia recovery room, without the use of a warming device. The data measured at other times refers to the use of the corresponding warming device.

[0058] Experimental data using the fifth embodiment of the present invention:

[0059]

[0060]

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[0065]

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[0068]

[0069] Experimental data of disposable body surface warming blanket using existing technology:

[0070]

[0071]

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[0075]

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[0079]

[0080] Experimental data statistics using the fifth embodiment of the present invention:

[0081] time Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 Case 7 Case 8 Case 9 Case 10 total When entering the room 4 2 4 3 3 3 3 1 4 4 31 15 minutes 3 1 3 2 0 0 1 0 1 1 12 30 minutes 2 0 2 0 0 0 0 0 0 2 6 45 minutes 1 0 1 0 0 0 0 0 0 0 2 60 minutes 0 0 1 0 0 0 0 0 0 0 1

[0082] Experimental data statistics using existing disposable body surface warming blankets:

[0083] time Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 Case 7 Case 8 Case 9 Case 10 total When entering the room 3 3 4 4 4 3 3 4 4 3 35 15 minutes 4 3 3 4 3 1 2 4 4 3 31 30 minutes 4 3 1 3 3 0 2 2 2 1 21 45 minutes 2 1 0 1 1 0 1 0 0 0 6 60 minutes 1 0 0 0 0 0 0 0 0 0 1

[0084] It can be seen that the total level of the ten patients using the fifth embodiment of the present invention when they were admitted to the room was 31. However, after 15 minutes, the total level had dropped to 12, with an average decrease of 1.9 levels per person. After 30 minutes, it had dropped to 6, with an average decrease of 2.5 levels per person, which is a significant decrease.

[0085] The total level of the ten patients using the disposable body surface warming blanket of the prior art was 35 when they were admitted to the room. After 15 minutes, the total level was still 31, with an average decrease of only 0.4 levels per person. After 30 minutes, the total level was still 21, with an average decrease of 1.4 levels per person, which was not a significant decrease.

[0086] It can be seen that although the inflation speed of the disposable body surface heating blanket using the prior art is several seconds faster than that of the fifth embodiment of the present invention, the thermal blanket using the fifth embodiment of the present invention has better thermal insulation effect than the disposable body surface heating blanket using the prior art within the most critical first 30 minutes of use.

[0087] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0088] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

Claims

1. A warming quilt, comprising a heating blanket (1) and a heater (5), wherein a heating chamber (17) is provided in the heating blanket (1), and the heating chamber (17) divides the heating blanket (1) into an upper heating blanket (101) and a lower heating blanket (102), an air inlet (8) is provided at the rear end of the heating blanket (1), and the air inlet (8) is connected to the heating chamber (17), an output end of the heater (5) is connected to a warm air pipe (4), and the other end of the warm air pipe (4) is connected to the air inlet (8), and is characterized in that: Three groups of sutures are sewn from top to bottom between the upper heating blanket (101) and the lower heating blanket (102), each group of sutures comprising first sutures (7) symmetrically arranged on both sides of the vertical center axis of the heating blanket (1), and the gaps between the heating cavities formed by each group of sutures are not in direct contact with the outside air; each group of sutures is in an eight-shaped pattern.

2. A warm quilt according to claim 1, characterized in that: As the three groups of sutures move from top to bottom, the length of the first suture (7) gradually shortens and the distance from the edge of the heating blanket (1) remains unchanged.

3. A warm quilt according to claim 2, characterized in that: A second suture line (6) is also provided between each group of suture lines located on the vertical central axis of the heating blanket (1).

4. A warm quilt according to claim 1, characterized in that: A snap-fit assembly (18) is provided in the air inlet (8), and the snap-fit assembly (18) includes an air inlet pipe (9) installed in the air inlet (8), guide grooves (10) are provided on opposite sides of the inner wall of the air inlet pipe (9), a snap-fitting groove (11) is provided on the inner wall of the air inlet pipe (9), and two guide protrusions (15) that match the guide grooves (10) and the snap-fitting grooves (11) are provided on the peripheral end of the warm air pipe (4).

5. A warm quilt according to claim 4, characterized in that: An extrusion assembly is also installed in the air inlet pipe (9), and the extrusion assembly includes a pressure plate (12) elastically fitted in the air inlet pipe (9). A sealing gasket (16) is installed on the circumference of the end of the air inlet pipe (9), and the sealing gasket (16) is arranged above the guide protrusion (15).

6. A warm quilt according to any one of claims 1 to 3, characterized in that: A thermal insulation blanket (2) is also provided above the heating blanket (1) and is detachably connected to the heating blanket (1) via a plurality of mutually cooperating connectors (3).

7. The warm quilt according to claim 6, characterized in that: The heating blanket (1) is a cotton blanket, and the thermal insulation quilt (2) is a polyester fiber quilt.

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