Heat reflection composite sterile heat preservation device for operation

Abstract

The utility model discloses a heat reflection composite sterile thermal insulation device for surgery, which belongs to the technical field of medical instruments and comprises an outer protective layer and a built-in reflecting layer, the outer protective layer is composed of an upper medical non-woven fabric layer and a lower medical non-woven fabric layer, and sterility is ensured; the built-in reflecting layer is made of a metallized polyester film and has the heat reflectivity of 95% or above; all the layers are fixedly connected through an ultrasonic spot welding process, and sealing structures are arranged on the edges; while the sterile requirement of an operation is met, heat loss of a patient in the operation can be effectively prevented, clinical application results show that the body temperature decrease amplitude of the patient in the operation can be reduced by more than 50%, and the low-body-temperature occurrence rate in the operation is remarkably reduced; the device is reasonable in structural design, mature in manufacturing process, low in cost, suitable for various surgical operations, and particularly suitable for large-area exposed surgical operations such as body shaping and the like.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a surgical heat-reflective composite sterile insulation device. Background Technology

[0002] Intraoperative hypothermia (intraoperative temperature <36℃) is a common complication, with an incidence rate as high as 60% in surgeries with large exposed areas and long operation times, such as body contouring surgery. Studies have shown that intraoperative hypothermia can increase the risk of surgical site infection by 2-3 times, increase bleeding by 16%, and prolong postoperative recovery time by more than 40%.

[0003] Currently, clinical methods for preventing intraoperative hypothermia mainly include two categories: active heating and passive warming. While active heating devices such as forced-air blankets are effective, they have drawbacks such as high equipment cost (>10,000 RMB / unit), potential interference with sterile areas, and the need for continuous power supply. Traditional passive warming methods, such as ordinary surgical drapes, have limited warming effects, with a heat loss rate as high as 85%.

[0004] Reflective blankets are widely used in aerospace medicine and field rescue due to their excellent thermal reflectivity (reflectivity > 95%). However, because they lack sterility, they cannot be used directly in surgical areas. How to combine the superior thermal insulation properties of reflective blankets with the sterility requirements of surgery has become a pressing technical problem to be solved in this field. Utility Model Content

[0005] The present invention aims to provide a surgical heat-reflective composite sterile insulation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A surgical heat-reflective composite sterile warming device, comprising:

[0008] The outer protective layer consists of two layers of medical-grade non-woven fabric.

[0009] Built-in reflective layer, made of metallized polyester film;

[0010] The outer protective layer covers the built-in reflective layer and is fixedly connected by ultrasonic spot welding. The outer edge of the outer protective layer is provided with a heat-sealed edge with a width of 8-12mm.

[0011] Preferably, the thickness of the built-in reflective layer is 12-15 micrometers.

[0012] Preferably, the medical-grade nonwoven fabric of the outer protective layer has a unit area mass of 35-45 g / m². 2 It has waterproof properties.

[0013] Preferably, the ultrasonic spot welding joints are arranged in a uniform square array, and the distance between adjacent joints is 50-80mm.

[0014] Preferably, the outer protective layer is sterilized with ethylene oxide.

[0015] Preferably, the specifications of the heat preservation device are any one of three types: 120cm×150cm, 150cm×180cm, and 180cm×200cm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) Significant heat preservation effect: Clinical trials show that using this device can reduce the drop in body temperature during surgery by more than 50%, and reduce the incidence of hypothermia from 60% to 13.3%;

[0018] 2) Aseptic guarantee: The outer layer is made of medical-grade non-woven fabric, which can be used directly in the surgical area;

[0019] 3) Easy to use: No external power supply required, easy to spread, and does not affect surgical procedures;

[0020] 4) Cost advantage: Unit cost < 50 yuan, saving more than 95% compared to active heating equipment;

[0021] 5) Wide applicability: It can be used for various surgical procedures, and is especially suitable for large-area exposure surgeries such as body shaping. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a surgical heat-reflective composite sterile insulation device.

[0023] Figure 2 This is a schematic diagram showing the structure of a surgical heat-reflective composite sterile insulation device.

[0024] The reference numerals in the accompanying drawings include:

[0025] 1. Outer protective layer; 2. Internal reflective layer; 3. Heat-sealed edges; 4. Ultrasonic spot welding connection points. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0027] like Figure 1-2The present invention provides a surgical heat-reflective composite sterile insulation device, comprising: an outer protective layer 1 and an inner reflective layer 2. The outer protective layer 1 is composed of two layers of medical-grade non-woven fabric, treated with standard medical device sterilization processes; the inner reflective layer 2 is made of metallized polyester film with a heat reflectivity ≥95%; the layers are fixedly connected by ultrasonic spot welding, and the outer edge of the outer protective layer is provided with a heat-sealing edge 3 with a width of 8-12mm. The sealing edge formed by the heat-sealing process can effectively prevent interlayer separation and extend service life.

[0028] The thickness of the built-in reflective layer 2 is 12-15 micrometers. This thickness range ensures both reflective performance and flexibility and processability.

[0029] The outer protective layer 1 has a unit area mass of 35-45 g / m². 2 Nonwoven fabrics in this quality range have sufficient strength and appropriate breathability, while also being waterproof.

[0030] The ultrasonic spot welding connection points 4 are arranged in a uniform square array, with a spacing of 50-80mm between adjacent connection points. This spacing ensures stable interlayer connection without affecting the overall flexibility and thermal insulation effect.

[0031] The device is available in three sizes: 120cm×150cm (suitable for local surgery), 150cm×180cm (suitable for routine surgery), and 180cm×200cm (suitable for large-area surgery).

[0032] The specific implementation process is as follows:

[0033] Clinical application of the device in this embodiment:

[0034] A controlled trial was conducted on 30 patients undergoing liposuction. The experimental group (n=15) used the device, while the control group (n=15) used standard surgical procedures. Results showed:

[0035] 1) Intraoperative body temperature: The body temperature of the experimental group decreased by 0.6±0.2℃, while that of the control group decreased by 1.3±0.3℃;

[0036] 2) Incidence of hypothermia: 13.3% in the experimental group and 60% in the control group;

[0037] 3) Postoperative shivering incidence: 20% in the experimental group and 85% in the control group;

[0038] 4) Patient comfort score (0-10 points): 9.1 points in the experimental group and 6.8 points in the control group.

[0039] Example 2

[0040] The difference between this embodiment and Embodiment 1 is that a 120cm×150cm specification is used, which is suitable for local surgeries such as breast implantation. In clinical application with 20 cases, the incidence of hypothermia was 15%, and the patient comfort score was 8.9.

[0041] Example 3

[0042] The difference between this embodiment and Embodiment 1 is that a 180cm×200cm specification is used, which is suitable for large-area exposure surgeries such as abdominoplasty. In clinical application to 25 cases, the incidence of hypothermia was 12%, and the patient comfort score was 9.3.

[0043] This invention employs a novel composite process to perfectly combine the excellent heat preservation performance of reflective blankets with the requirements of surgical aseptic techniques, resulting in a high-performance, easy-to-use, and low-cost surgical heat preservation device with significant clinical application value.

[0044] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A surgical heat-reflective composite sterile insulation device, characterized in that, include: The outer protective layer (1) is composed of two layers of medical-grade non-woven fabric; The built-in reflective layer (2) is made of metallized polyester film; The outer protective layer (1) covers the built-in reflective layer (2) and is fixedly connected by ultrasonic spot welding. The outer edge of the outer protective layer (1) is provided with a heat-sealed edge (3) with a width of 8-12mm.

2. The surgical heat-reflective composite sterile insulation device according to claim 1, characterized in that: The thickness of the built-in reflective layer (2) is 12-15 micrometers.

3. The surgical heat-reflective composite sterile insulation device according to claim 1, characterized in that: The medical-grade nonwoven fabric of the outer protective layer (1) has a unit area mass of 35-45 g / m². 2 It has waterproof properties.

4. The surgical heat-reflective composite sterile insulation device according to claim 1, characterized in that: The ultrasonic spot welding connection points (4) are arranged in a uniform square array, and the distance between adjacent connection points is 50-80mm.

5. The surgical heat-reflective composite sterile insulation device according to claim 1, characterized in that: The outer protective layer (1) is sterilized with ethylene oxide.

6. The surgical heat-reflective composite sterile insulation device according to claim 1, characterized in that: The specifications of the heat preservation device are any one of three types: 120cm×150cm, 150cm×180cm, and 180cm×200cm.

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