A skull flap endotoxin removal device and method

Abstract

The application provides a skull flap endotoxin removal device and method, which comprises a vacuum heating device and a moisture-proof device connected with the vacuum heating device. The vacuum heating device comprises a tank body, a tank cover, a locking assembly and a heating assembly arranged in the tank body. The tank cover is connected with a vacuum device through a pipeline. The tank body and the cover are detachably connected through the locking assembly. The heating assembly is arranged in the tank body and located at a middle position. The heating assembly comprises a support column and a plurality of heating discs arranged on the support column in sequence from top to bottom. Heating wires are arranged in the support column and the heating discs. The moisture-proof device is communicated with the tank body and used for removing residual steam in the tank body after vacuum drying. The application is mainly used for physically removing endotoxin in the skull flap and has the advantages of convenient use and convenient endotoxin removal. Meanwhile, the application can avoid the situation of cooling and moisture return.

Description

Technical Field

[0001] This invention relates to the field of endotoxin removal equipment technology, specifically to a cranial flap endotoxin removal device and method. Background Technology

[0002] Cranioplasty not only restores the physiological integrity of the cranial cavity and prevents further brain tissue damage, but early cranioplasty can also promote the recovery of neurological function. Materials used for cranioplasty include artificial and autologous materials. Titanium mesh has good biocompatibility and is currently widely used. However, implanting artificial materials can cause varying degrees of immune rejection and psychological burden. Compared to artificial materials, autologous skull has advantages: it maintains the original skull structure and shape, has good compatibility with skull defects, and maintains a good appearance post-surgery; it has good tissue compatibility, minimal rejection by the body, rarely causes subcutaneous fluid accumulation, has a faster recovery time, fewer complications, and is more psychologically acceptable to patients.

[0003] Preserving skull flaps requires the removal of endotoxins from the flaps. Removing endotoxins reduces the risk of aseptic infection and bone resorption after skull reimplantation. However, current methods for removing endotoxins from skull flaps mostly rely on chemical agents, lacking physical methods for endotoxin removal. Existing technologies also use vacuum drying to remove endotoxins, but this process is prone to moisture re-entry. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for removing endotoxins from cranial flaps. It is mainly used to physically remove endotoxins from cranial flaps and has the advantages of being easy to use and convenient to remove endotoxins. At the same time, it can avoid the situation of cooling and moisture re-entry during the cooling stage.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A device for removing toxins from cranial flaps includes a vacuum heating device and a moisture-proof device connected to the vacuum heating device. The vacuum heating device includes a tank body, a tank cover, a locking assembly, and a heating assembly disposed inside the tank body. The tank cover is connected to the vacuum device via a pipe.

[0007] The tank body and the cover are detachably connected by the locking assembly. The heating assembly is located inside the tank body in the middle position. The heating assembly includes a support column and several heating plates arranged sequentially from top to bottom on the support column. Heating wires are provided in both the support column and the heating plates. The heating wires inside the heating plates have a disc-shaped spiral structure. A skull flap holding frame is provided inside the tank body. A positioning mechanism is provided between the skull flap holding frame and the heating plate located at the top of the support column. A moisture-proof device is connected to the tank body and is used to remove residual steam inside the tank body after vacuum drying is completed.

[0008] Further optimization: The moisture-proof device includes a first tank body, a first tank cover connected to the first tank body and used to seal the first tank body, and a moisture-absorbing mechanism installed inside the tank body. The moisture-absorbing mechanism includes a pressure plate, a connecting rod, and several filter cylinders with progressively smaller diameters. The pressure plate is connected to the first tank cover via the connecting rod. Several filter cylinders are coaxially arranged and their lower ends are connected to the bottom of the first tank body. An installation area is formed between adjacent filter cylinders. A moisture-absorbing cotton cylinder is installed in the installation area. Several through holes are provided on the filter cylinder. After the first tank body is connected to the second cover body, the pressure plate contacts the upper part of the filter cylinder.

[0009] The tank is equipped with a first pipe and a second pipe. The first pipe is connected to the side of the first tank and is equipped with a first valve and an air pump. The second pipe is connected to the bottom of the first tank and is equipped with all the second valves.

[0010] The second pipeline is equipped with a one-way diaphragm valve.

[0011] Further optimization: the length of the absorbent cotton tube is 2-3 cm longer than the length of the filter tube.

[0012] The length of the absorbent cotton tube is 2.5 cm longer than the length of the filter tube.

[0013] Further optimization involves adding a rubber buffer pad to the top of the filter cartridge.

[0014] The cranial flap holding frame includes a cylinder and a folded part located at the lower part of the cylinder. The upper end of the cylinder is closed, and a U-shaped placement area is formed between the folded part and the cylinder. Through holes are provided on the side of the cylinder and the folded part, and the cylinder covers the heating component.

[0015] The positioning mechanism includes a fixed block and a positioning post. The fixed block is fixedly installed on the top of the cylinder and has a positioning hole. The positioning post is fixedly installed on the uppermost heating plate and has a conical positioning part on the top of the positioning post, which cooperates with the positioning hole.

[0016] Further optimization includes a locking assembly comprising a first clamp and a second clamp, which are hinged together by a pin. The first clamp has a U-shaped groove at the end away from the pin, and the second clamp has a rotating bolt hinged at the end away from the pin, with a wing nut at the end of the rotating bolt. Both the tank body and the tank cover have mating parts with mating ramps. Both the first and second clamps have engaging grooves corresponding to the mating parts, and engaging ramps corresponding to the mating ramps are provided in the engaging grooves. A sealing ring is provided between the tank body and the tank cover.

[0017] The present invention also discloses a method for removing endotoxin from cranial flaps, which includes using the above-mentioned cranial flap endotoxin removal device to remove endotoxin.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention mainly consists of a tank, a lid, a locking assembly, and a heating assembly. It is primarily used to remove toxins from cranial flaps through physical means, reducing chemical contamination. By placing the heating assembly in the center of the tank, it can dissipate heat in all directions. Compared to conventional heating devices mounted on the inner wall of the tank, this invention has a larger heat radiation area, enabling rapid heating. The locking assembly creates a sealed space between the tank and the lid. Simultaneously, a vacuum device creates negative pressure inside the tank, allowing for rapid drying of the cranial flap through high-temperature physical removal of toxins. More importantly, the invention utilizes a disc-shaped spiral heating wire within the heating disc, significantly extending its length and effectively achieving rapid heating. Furthermore, a moisture-proof device removes residual steam from the tank after vacuum drying, preventing moisture re-entry and ensuring the dryness of the cranial flap. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

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

[0022] Figure 2 This is a schematic diagram of the overall structure of the vacuum heating device of the present invention.

[0023] Figure 3 This is a schematic diagram of the internal structure of the vacuum heating device of the present invention.

[0024] Figure 4 For the present invention Figure 3 A magnified view of a portion of point A in the middle.

[0025] Figure label:

[0026] 1-Vacuum heating device, 101-Tank body, 102-Tank cover, 103-Locking assembly, 104-Heating assembly, 105-Pipe, 106-Heating plate, 107-Support column, 108-Skull flap holding frame, 109-Positioning mechanism, 110-Folding part, 111-Cylinder, 112-Through hole, 113-Fixing block, 114-Positioning column, 115-Positioning hole, 116-Positioning part, 117-Guide inclined surface, 118-First clamp, 119-Second clamp, 120-Insulation layer, 121-Pin, 122-Wing nut, 123-Rotating bolt, 124-Mating part, 125-Mating inclined surface, 126-Matching groove, 127-Sealing gasket;

[0027] 2-Moisture-proof device, 201-First tank body, 202-First tank cover, 203-Moisture-absorbing mechanism, 204-Pressure plate, 205-Connecting rod, 206-Filter cartridge, 207-Moisture-absorbing cotton cartridge, 208-First pipe, 209-Second pipe, 210-First valve, 211-Air pump, 212-Second valve, 213-One-way membrane valve. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0034] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] Example 1

[0036] See Figures 1-4This embodiment discloses a device for removing toxins from a cranial flap, including a vacuum heating device 1 and a moisture-proof device 2 connected to the vacuum heating device 1. The vacuum heating device 1 includes a tank 101, a tank cover 102, a locking assembly 103, and a heating assembly 104 disposed inside the tank 101. A vacuum device is connected to the tank cover 102 through a pipe 105.

[0037] The tank body 101 and the cover are detachably connected by the locking assembly 103. The heating assembly 104 is located inside the tank body 101 and in the middle position. The heating assembly 104 includes a support column 107 and several heating plates 106 arranged sequentially from top to bottom on the support column 107. Heating wires are provided in both the support column 107 and the heating plates 106. The heating wires inside the heating plates 106 have a spiral structure in the shape of a disc. A skull flap holding frame 108 is provided inside the tank body 101. A positioning mechanism 109 is provided between the skull flap holding frame 108 and the heating plate 106 located at the top of the support column 107. The moisture-proof device 2 is connected to the tank body 101 and is used to remove residual steam inside the tank body 101 after vacuum drying is completed.

[0038] This invention mainly consists of a canister 101, a canister lid 102, a locking assembly 103, and a heating assembly 104. It is primarily used to remove toxins from cranial flaps through a physical method, reducing chemical contamination of the cranial flaps. In this invention, by placing the heating assembly 104 in the middle of the canister 101, it can dissipate heat to the surrounding area. Compared to conventional heating devices placed on the inner wall of the canister 101, this invention has a larger heat radiation area, enabling rapid heating. Under the action of the locking assembly 103, the canister 101 and the lid form a sealed space. Simultaneously, under the action of the vacuum equipment, a negative pressure is formed inside the tank 101, and under the action of the heating component 104, the skull flap can be dried rapidly, achieving the purpose of physically removing toxins from the skull flap through high temperature. More importantly, in this invention, by setting the heating wire with a disc-shaped spiral structure inside the heating plate 106, the length of the heating wire is greatly extended, which can effectively achieve the purpose of rapid heating. Furthermore, this invention uses a moisture-proof device 2 to remove residual steam inside the tank 101 after the vacuum drying is completed, avoiding the occurrence of moisture and ensuring the dryness of the skull flap.

[0039] Further optimization: The moisture-proof device 2 includes a first tank 201, a first tank cover 202 connected to the first tank 201 and used to seal the first tank 201, and a moisture-absorbing mechanism 203 disposed inside the tank 101. The moisture-absorbing mechanism 203 includes a pressure plate 204, a connecting rod 205, and a plurality of filter cylinders 206 with progressively smaller diameters. The pressure plate 204 is connected to the first tank cover 202 via the connecting rod 205. The plurality of filter cylinders 206 are coaxially arranged and their lower ends are connected to the bottom of the first tank 201. An installation area is formed between adjacent filter cylinders 206. A moisture-absorbing cotton cylinder 207 is disposed in the installation area. A plurality of through holes 112 are provided on the filter cylinder 206. After the first tank 201 is connected to the second cover, the pressure plate 204 contacts the upper part of the filter cylinder 206.

[0040] The tank body 101 is provided with a first pipe 208 and a second pipe 209. The first pipe 208 is connected to the side of the first tank body 201 and is provided with a first valve 210 and an air pump 211. The second pipe 209 is connected to the bottom of the first tank body 201 and is provided with all the second valves 212.

[0041] During the vacuum drying process, the first valve 210 and the second valve 212 are closed. After the vacuum drying is completed, the first valve 210 and the second valve 212 are opened, and the air pump 211 is turned on, so that the air inside the tank 101 flows from the second pipe 209 into the first tank 201, and flows through the moisture-absorbing cotton cylinder 207 in sequence. When the air flows through the moisture-absorbing cotton cylinder 207, the residual vapor in the air can be removed, and the residual water vapor can be prevented from condensing after cooling. The moisture-absorbing cotton cylinder 207 is fixed by the pressure plate 204, which can realize the quick disassembly and assembly of the moisture-absorbing cotton cylinder 207, and facilitate the replacement of the moisture-absorbing cotton cylinder 207.

[0042] It should be noted that in actual use, the absorbent cotton tube 207 and all components need to be sterilized at high temperature before use to avoid contaminating the skull flap.

[0043] A one-way diaphragm valve 213 is installed on the second pipeline 209.

[0044] Further optimization involves making the length of the moisture-absorbing cotton cylinder 207 2-3 cm longer than the length of the filter cylinder 206; in this embodiment, the length of the moisture-absorbing cotton cylinder 207 is 2.5 cm longer than the length of the filter cylinder 206; when the pressure plate 204 presses down, it presses the moisture-absorbing cotton cylinder 207 into the installation area, making the filter cotton cylinder more compact and improving the dehumidification and water filtration effect.

[0045] Further optimization involves installing a rubber buffer pad at the top of the filter cartridge 206. This rubber buffer pad not only serves as a buffer but also improves the sealing performance.

[0046] The cranial flap holding frame 108 includes a cylinder 111 and a folded portion 110 disposed on the lower part of the cylinder 111. The upper end of the cylinder 111 is closed, and a U-shaped placement area is formed between the folded portion 110 and the cylinder 111. Through holes 112 are provided on the side of the cylinder 111 and the folded portion 110. The cylinder 111 covers the heating component 104, which facilitates the placement of the cranial flap in the cranial flap holding frame 108.

[0047] The positioning mechanism 109 includes a fixing block 113 and a positioning post 114. The fixing block 113 is fixedly mounted on the top of the cylinder 111, and a positioning hole 115 is provided on the fixing block 113. The positioning post 114 is fixedly mounted on the uppermost heating plate 106, and a conical positioning part 116 is provided on the top of the positioning post 114, which cooperates with the positioning hole 115. This allows for the rapid placement of the skull flap holding frame 108 during dry heat treatment of endotoxins in the skull flap.

[0048] The fixing block 113 is provided with a guide slope 117 that connects with the positioning hole 115; the guide slope 117 can serve as a guide to facilitate the cooperation between the positioning post 114 and the fixing block 113.

[0049] The locking assembly 103 includes a first clamp 118 and a second clamp 119, which are hinged together by a pin 121. The first clamp 118 has a U-shaped groove at the end away from the pin 121, and the second clamp 119 has a rotating bolt 123 hinged at the end away from the pin 121. The end of the rotating bolt 123 is equipped with a wing nut 122. Both the tank body 101 and the tank cover 102 are provided with mating parts 124, and mating inclined surfaces 125 are provided on the mating parts 124. Both the first clamp 118 and the second clamp 119 are provided with engaging grooves 126 corresponding to the mating parts 124, and engaging inclined surfaces corresponding to the engaging inclined surfaces 125 are provided in the engaging grooves 126. A sealing ring is provided between the tank body 101 and the tank cover 102.

[0050] When connecting the tank body 101 and the tank cover 102, the first clamp 118 and the second clamp 119 can form a ring to connect the tank body 101 and the tank cover 102. When the first clamp 118 and the second clamp 119 are fixed, the set mating inclined surface 125 and the engaging inclined surface can bring the tank cover 102 and the tank body 101 closer to each other, so that the tank body 101 and the tank cover 102 can be tightly pressed onto the sealing ring, thus achieving a seal between the tank body 101 and the tank cover 102. At the same time, the set rotating bolt 123 and wing nut 122 make the connection more convenient.

[0051] Further optimization involves adding a handle to the top of the cylinder 111, making it easier to hold the cylinder 111 during actual use.

[0052] In actual use, both the outer sides of the tank body 101 and the tank cover 102 are equipped with heat insulation layers 120 to reduce heat loss.

[0053] Further optimization involves making both the cylinder 111 and the folding section 110 from stainless steel mesh to facilitate heat transfer.

[0054] Further optimization involves connecting the heating wires in each heating plate 106 to a controller. In actual use, the controller is used to start and stop the heating wires, thereby controlling the temperature.

[0055] Example 2

[0056] This embodiment discloses a method for removing endotoxins from cranial flaps, including using the cranial flap endotoxin removal device described in Embodiment 1 to remove endotoxins;

[0057] During the vacuum drying process, the first valve 210 and the second valve 212 are closed. After the vacuum drying is completed, the first valve 210 and the second valve 212 are opened, and the air pump 211 is turned on, so that the air inside the tank 101 flows from the second pipe 209 into the first tank 201 and flows through the moisture-absorbing cotton cylinder 207 in sequence. When the air flows through the moisture-absorbing cotton cylinder 207, the residual steam in the air can be removed, so as to prevent the residual water vapor from condensing after cooling.

[0058] When in use, the skull flap is placed in the skull flap holding frame 108. While the skull flap is heated by the heating component 104, a vacuum is drawn inside the tank 101 by the set vacuum device. The vacuum degree inside the tank 101 is maintained at 0.048-0.08MPa. The drying temperature is generally controlled at around 250℃ and the drying time is controlled at 1-1.5h.

[0059] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for removing toxins from cranial flaps, characterized in that: It includes a vacuum heating device and a moisture-proof device connected to the vacuum heating device. The vacuum heating device includes a tank body, a tank cover, a locking assembly, and a heating assembly disposed inside the tank body. A vacuum device is connected to the tank cover via a pipe. The tank body and the tank cover are detachably connected by the locking assembly. The heating assembly is located inside the tank body in the middle position. The heating assembly includes a support column and several heating plates arranged sequentially from top to bottom on the support column. Heating wires are installed in both the support column and the heating plates. The heating wires inside the heating plates have a disc-shaped spiral structure. A skull flap holding frame is installed inside the tank body. A positioning mechanism is installed between the skull flap holding frame and the heating plate located at the top of the support column. A moisture-proof device is connected to the tank body and is used to remove residual steam inside the tank body after vacuum drying is completed. The moisture-proof device includes a first tank body, a first tank cover connected to the first tank body and used to seal the first tank body, and a moisture-absorbing mechanism disposed in the first tank body. The moisture-absorbing mechanism includes a pressure plate, a connecting rod, and a plurality of filter cylinders with successively decreasing diameters. The pressure plate is connected to the first tank cover through the connecting rod. The plurality of filter cylinders are coaxially arranged and their lower ends are connected to the bottom of the first tank body. An installation area is formed between adjacent filter cylinders. A moisture-absorbing cotton cylinder is disposed in the installation area. A plurality of through holes are provided on the filter cylinder. After the first tank body is connected to the first tank cover, the pressure plate contacts the upper part of the filter cylinder. The tank is provided with a first pipe and a second pipe. The first pipe is connected to the side of the first tank and is equipped with a first valve and an air pump. The second pipe is connected to the bottom of the first tank and is equipped with a second valve. The cranial flap holding frame includes a cylinder and a folded section located at the bottom of the cylinder. The upper end of the cylinder is closed, and a U-shaped placement area is formed between the folded section and the cylinder. Through holes are provided on the side of the cylinder and the folded section, and the cylinder covers the heating component.

2. The cranial flap endotoxin removal device according to claim 1, characterized in that: A one-way diaphragm valve is installed on the second pipeline.

3. The cranial flap endotoxin removal device according to claim 1, characterized in that: The length of the absorbent cotton tube is 2-3 cm longer than the length of the filter tube.

4. The cranial flap endotoxin removal device according to claim 3, characterized in that: The length of the absorbent cotton tube is 2.5cm longer than the length of the filter tube.

5. The cranial flap endotoxin removal device according to claim 1, characterized in that: A rubber buffer pad is installed at the top of the filter cartridge.

6. The cranial flap endotoxin removal device according to claim 1, characterized in that: The positioning mechanism includes a fixed block and a positioning post. The fixed block is fixedly installed on the top of the cylinder and has a positioning hole. The positioning post is fixedly installed on the uppermost heating plate and has a conical positioning part on the top of the positioning post, which cooperates with the positioning hole.

7. The cranial flap endotoxin removal device according to claim 6, characterized in that: The locking assembly includes a first clamp and a second clamp, which are hinged together by a pin. The first clamp has a U-shaped groove at the end away from the pin, and the second clamp has a rotating bolt hinged to the end away from the pin. The end of the rotating bolt is equipped with a wing nut. Both the tank body and the tank cover are provided with mating parts, and the mating parts are provided with mating inclined surfaces. Both the first clamp and the second clamp are provided with engaging grooves corresponding to the mating parts, and engaging inclined surfaces corresponding to the mating inclined surfaces are provided in the engaging grooves. A sealing ring is provided between the tank body and the tank cover.

8. A method for removing endotoxins from cranial flaps, characterized in that: This includes using the cranial flap endotoxin removal device according to any one of claims 1-7 to achieve endotoxin removal.

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