CN113974562A - Implantable medical detection equipment and processing method - Google Patents

Abstract

The invention discloses an implanted medical detection device and a processing method, relates to the technical field of medical devices, and aims to provide an implanted medical detection device and a processing method, wherein the implanted medical detection device is characterized in that an external power supply is a wearable power supply and comprises a close-fitting vest, the surface of the close-fitting vest is provided with a power supply part, the power supply part is fixedly adhered to the skin of a human body, the surface of the power supply part is provided with a sticking area and a radio frequency area, the sticking area is arranged around the radio frequency area, a sticking sheet is laid on the sticking area and is connected with the skin of the human body in a sticking way, the technical effect is that the power supply part is arranged on the close-fitting vest to wear the vest, the external power supply is adhered to the human body for twenty-four hours, the charging at the moment is guaranteed, and meanwhile, the vest enables the power supply part to be tightly adhered to the human body, and the power supply part is adhered to the skin of the human body by the adhesive sheet of the adhering area, so that the position of the power supply part is ensured to be fixed.

Description

Implantable medical detection equipment and processing method

Technical Field

The invention relates to the technical field of medical equipment, in particular to implantable medical detection equipment and a processing method.

Background

In recent years, a new generation of implantable medical electronic equipment gradually replaces the traditional portable medical apparatus to become a global medical research and development hotspot, compared with the traditional portable medical electronic equipment, implantable medical treatment is more flexible and convenient in appearance or use, and can monitor health conditions in real time and even predict diseases;

the traditional portable medical electronic equipment is mainly divided into household portable medical electronic equipment and medical portable medical electronic equipment, wherein the household portable medical electronic equipment comprises an electronic sphygmomanometer, an electronic blood glucose meter, an electronic hearing aid and the like; the latter includes portable electrocardiographs, portable multi-parameter monitors, portable ultrasonic detectors, and the like.

The implantable chip is more convenient and faster in medical treatment and higher in accuracy and can save cost only by implanting the chip into a human body to monitor various health data or repair functions of the human body.

Implantable medical equipment includes internal implantation part and external detection part, in order to guarantee that internal implantation part uses for a long time, need charge to it, and among the prior art, the charging mode has internal rechargeable battery and external power source to charge, external power source charging mode is simple, but in the time of practical application, the battery must laminate skin and use, because the position of internal implantation part is uncertain, some positions use inconveniently, and, external charging can't charge constantly, probably lead to charging untimely, cause equipment to stop using, bring the influence for patient's testing result.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides implantable medical detection equipment and a processing method thereof, wherein the implantable medical detection equipment is used by wearing a power supply part, is stuck and fixed, prevents displacement, ensures charging at any time and avoids equipment power failure.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an implantable medical detection device comprises an implantable part and an external detection part, wherein the implantable part and the external detection part are in percutaneous wireless communication in an electromagnetic coupling or optical coupling mode, the implantable part is powered by an external power supply, the external power supply is a wearable power supply and comprises a close-fitting vest, a power supply part is arranged on the surface of the close-fitting vest, the power supply part is fixedly adhered to the skin of a human body, an adhesion area and a radio frequency area are arranged on the surface of the power supply part, the adhesion area is arranged around the radio frequency area, an adhesive sheet is laid on the adhesion area, and the adhesive sheet is adhered and connected with the skin of the human body; the power supply part is internally provided with a radio frequency oscillator, a radio frequency power amplifier and an external primary induction coil, the internal implantation part is provided with a small secondary induction coil, the small secondary induction coil of the internal implantation part is arranged below the external primary coil in parallel, and the small secondary induction coil is used for inducing radio frequency voltage; the inner parts of the power supply part are sealed by the case.

Preferably, the power supply portion is detachably connected with the close-fitting vest through the installation portion, the installation portion is connected with the close-fitting vest into a whole, the installation groove matched with the power supply portion is formed in the surface of the installation portion, and the power supply portion enters the inner cavity of the installation groove and is fixedly connected with the installation portion in a clamping mode.

Preferably, the casing includes first casing and second casing, be waterproof material with one side housing face of human surface contact, the joint hole is seted up to the inside of first shell, the inboard position that corresponds the joint hole of second casing sets up connects the arris, it gets into joint hole and its joint to connect the arris, the joint groove is all seted up with the opposite face of second casing to first casing, the joint groove sets up along the connection face of two casings, and the inside fixed mounting silicon rubber strip of one of them casing, the inside that the other end side of silicon rubber strip got into another casing is fixed rather than the joint.

Preferably, the adhesive patch comprises a skin contacting surface; conversion means for recording the acoustic signal and converting it into a first electrical output signal; an adhesive element for attaching the converting means to a skin surface; transmission means for transmitting the electrical output signal to a peripheral device; and means for managing the pressure between the converting means and the skin contacting surface.

Preferably, the adhesive patch comprises a sound absorbing layer and a signal transfer transmission layer, the sound absorbing layer comprising a high density material, the high density material being a hydrocolloid material.

Preferably, the implanted part comprises an external packaging shell and an internal detector, the external packaging shell comprises a first packaging layer and a second packaging layer, a heat insulation cavity is formed between the second packaging layer and the first packaging layer, and a heat insulation piece is arranged inside the heat insulation cavity and used for blocking heat exchange inside and outside the shell.

Preferably, the thermal insulation piece comprises a thermal insulation film formed by stacking single-layer graphene, MoS2 and WSe2, and the thermal insulation film is connected with the inner wall surface and the outer wall surface of the thermal insulation layer into a whole.

Preferably, the heat insulation piece comprises two layers of heat insulation films, the two layers of heat insulation films are connected through a connecting piece and are respectively adhered to the inner wall of the second packaging layer and the outer wall of the first packaging layer into a whole, and a vacuum layer is formed between the two layers of heat insulation films.

A processing method of an implantable medical detection device is applied to the implantable medical detection device and comprises the following steps:

the method comprises the following steps: packaging the internal detector of the implanted part in the body by using packaging equipment to form a first packaging layer;

step two: adhering a heat insulation film on the outer side of the first packaging layer, and completely wrapping the first packaging layer by using the heat insulation film;

step three: and continuously utilizing the packaging equipment to package the device to form a second packaging layer.

Preferably, in the second step, after the first packaging layer is wrapped by the heat insulation film, a plurality of connecting members are installed on the outer surface of the first packaging layer, the plurality of connecting members are equally distributed around the heat insulation film, and then the second packaging layer is wrapped by the heat insulation film.

(III) advantageous effects

Compared with the prior art, the invention provides implantable medical detection equipment and a processing method, and the equipment has the following beneficial effects:

1. install power supply portion on tight vest, dress close-fitting undershirt for external power source and human twenty-four hours laminating are in the same place, guarantee to charge constantly, and simultaneously, close-fitting undershirt makes power supply portion and human body tightly laminate, and utilizes the sticker of adhesion area, makes power supply portion and human skin paste, ensures that the position of power supply portion is certain, can not shift easily after the dress, avoids the unstable condition of signal to take place.

2. The sticking sheet is used for sticking the skin of a human body, and meanwhile, the replacing device is arranged in the sticking sheet, so that the sound emitted by the human body is converted into a signal and finally sent to the outer ring equipment, the condition of the human body is monitored, and the functionality of the equipment is improved.

3. The external packaging shell of the implanted part in the packaging body is arranged into two parts, a heat insulation cavity is arranged between the two parts, and the heat emitted by the internal detector during charging is blocked by utilizing a heat insulation piece in the heat insulation cavity, so that the heat effect of local tissues is reduced.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the present invention;

FIG. 2 is a schematic view showing a power supply portion mounting structure of the present invention;

FIG. 3 is a schematic view of the installation of the power supply portion body of the present invention;

figure 4 is a schematic view of an adhesive patch according to the invention;

fig. 5 is a schematic view of an outer package of the present invention.

In the figure: 1. a vest; 2. a power supply unit; 3. a pasting area; 4. a radio frequency region; 5. a sticker; 6. an installation part; 7. mounting grooves; 8. a first housing; 9. a second housing; 10. a clamping groove; 11. a silicone rubber strip; 12. a sound absorbing layer; 13. a signal conversion transport layer; 14. an outer package housing; 15. an internal detector; 16. a first encapsulation layer; 17. a second encapsulation layer; 18. a thermally insulating cavity; 19. a heat insulating film; 20. a connecting member; 21. and (4) a vacuum layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an implantable medical examination device includes an implanted part and an external examination part, which are wirelessly communicated with each other by electromagnetic coupling or optical coupling, the implanted part is powered by an external power supply, the external power supply is a wearable power supply, and includes a close-fitting vest 1, apower supply part 2 is disposed on the surface of the close-fitting vest 1, thepower supply part 2 is fixedly adhered to the skin of a human body, anadhering area 3 and a radio frequency area 4 are disposed on the surface of thepower supply part 2, theadhering area 3 is disposed around the radio frequency area 4, anadhesive sheet 5 is laid on the adheringarea 3, and theadhesive sheet 5 is adhered to and connected with the skin of the human body; thepower supply part 2 is internally provided with a radio frequency oscillator, a radio frequency power amplifier and an external primary induction coil, the internal implantation part is provided with a small secondary induction coil, the small secondary induction coil of the internal implantation part is arranged below the external primary coil in parallel, and the small secondary induction coil is used for inducing radio frequency voltage; the internal components of thepower supply part 2 are sealed by a case;

as an embodiment of the invention, thepower supply part 2 is arranged on the close-fittingvest 1, which is convenient for a human body to directly wear, after the close-fitting vest is worn, thepower supply part 2 is directly attached to the skin of the human body, so that the convenience is improved, the surface of thepower supply part 2 is provided with theadhesive area 3 and the radio frequency area 4, theadhesive area 3 is arranged around the radio frequency area 4, theadhesive sheet 5 is laid on theadhesive area 3, and theadhesive sheet 5 is adhered and connected with the skin of the human body, so that the stability of thepower supply part 2 is further improved, thepower supply part 2 is ensured to be positioned at a certain position, and cannot easily shift after being worn, and the unstable signal is avoided;

when thepower supply part 2 is used, a primary coil of an internal radio frequency oscillator sends out a signal, the signal is amplified by a radio frequency power amplifier, an external primary induction coil receives the signal, a small secondary induction coil is used for inducing the radio frequency voltage of the external primary induction coil, and the radio frequency voltage generates stable direct current voltage after being rectified, filtered and stabilized, or charges an internal rechargeable battery or directly supplies the internal electronic circuit to work.

Referring to fig. 2, thepower supply part 2 is detachably connected with thevest 1 through the mountingpart 6, the mountingpart 6 is connected with thevest 1 into a whole, the surface of the mountingpart 6 is provided with a mounting groove 7 matched with thepower supply part 2, thepower supply part 2 enters the inner cavity of the mounting groove 7 and is clamped and fixed with the mounting groove 7, and the stickingarea 3 is arranged around the mounting groove 7;

theinstallation part 6 and thepower supply part 2 are connected and installed in an embodiment, the installation part and thepower supply part 2 are clamped and fixed, the disassembly and the installation are convenient, a patient can conveniently install thepower supply part 2, the installation part and the power supply part are disassembled after the close-fittingvest 1 is used, the close-fittingvest 1 can be conveniently washed by water, and the practicability is enhanced;

referring to fig. 3, the housing includes afirst housing 8 and asecond housing 9, a surface of the housing on a side contacting with a human body surface is made of a waterproof material, a fastening hole is formed in the first housing, a connecting edge is arranged on an inner side of thesecond housing 9 corresponding to the fastening hole, the connecting edge enters the fastening hole and is fastened with the fastening hole,fastening grooves 10 are formed in opposite surfaces of thefirst housing 8 and thesecond housing 9, thefastening grooves 10 are arranged along a connecting surface of the two housings, asilicone rubber strip 11 is fixedly mounted in one housing, and the other end of thesilicone rubber strip 11 enters the other housing and is fastened with the other housing;

as an embodiment of the present invention, the housing of thepower supply portion 2 is detachably disposed, and the internal components thereof have problems, so that it is convenient to overhaul the housing, therefore, in this embodiment, the housing is set into two parts, the connecting edge enters the clamping hole, the connecting surface of thefirst housing 8 and thesecond housing 9 is attached and abutted, so as to realize the installation and fixation of thefirst housing 8 and thesecond housing 9, and the two are conveniently separated, meanwhile, when thefirst housing 8 and thesecond housing 9 approach each other, thesilicone rubber strip 11 of the clampinggroove 10 of thefirst housing 8 enters the inner cavity of the clampinggroove 10 of thesecond housing 9, the connecting surface of the two housings is further sealed by thesilicone rubber strip 11, so as to block sweat from entering, realize the protection of thepower supply portion 2, and prolong the service life of the internal components of thepower supply portion 2;

in order to ensure that thesilicone rubber strip 11 conveniently enters the inner cavity of the clampinggroove 10 of thesecond shell 9, the silicone rubber strip can be designed into a trapezoidal shape, the maximum area of the cross section of the silicone rubber strip is matched with that of the clampinggroove 10, and when the silicone rubber strip is used, the smaller side of thesilicone rubber strip 11 firstly enters the clampinggroove 10 of thesecond shell 9 until the silicone rubber strip completely enters the clampinggroove 10 and is abutted against the clamping groove;

because the device is in direct contact with a human body and is inevitably corroded by sweat, in order to further protect electronic equipment, the surface of thesilicon rubber strip 11 can be coated with anti-corrosion paint, so that the service life of thesilicon rubber strip 11 is prolonged.

Afterpower supply portion 2 got into mounting groove 7, the control surface flushed with the surface ofinstallation department 6, consequently, the connecting portion offirst casing 8 andsecond casing 9 got into the inside of mounting groove 7, in order to prevent that the sweat from getting intopower supply portion 2's inside betweenfirst casing 8 and thesecond casing 9, set up the seal groove at the inner wall of mounting groove 7, the seal groove encircles the annular setting of the inner wall of mounting groove 7, its inside sealing strip that sets up, the sealing strip contradicts with the casing outer wall in the outside, block that the sweat flows.

Example two

Theadhesive patch 5 comprises a skin contact surface; conversion means for recording the acoustic signal and converting it into a first electrical output signal; an adhesive element for attaching the converting means to a skin surface; transmission means for transmitting the electrical output signal to a peripheral device; and means for managing pressure between the converting means and the skin contacting surface;

as an embodiment of the invention, theadhesive sheet 5 is not only used for adhering the skin of a human body, but also provided with a replacing device inside, converts the sound emitted by the human body into a signal and finally sends the signal to an outer ring device, thereby realizing the monitoring of the condition of the human body.

Referring to fig. 2 and 4, theadhesive patch 5 comprises asound absorbing layer 12 and a signaltransfer transmission layer 13, thesound absorbing layer 12 comprising a high density material, the high density material being a hydrocolloid material;

this is the concrete structural layer ofadhesion patch 5, and high density material through hydrocolloid material makessound absorption layer 12, improves the absorption effect to human sound, ensures that the signal is clear, simultaneously, reduces the sweat and damages its erosion, prolongs the life ofadhesion patch 5.

EXAMPLE III

Referring to fig. 5, the intracorporeal implanted part comprises an external packaging case 14 and aninternal detector 15, the external packaging case 14 comprises afirst packaging layer 16 and asecond packaging layer 17, aheat insulation cavity 18 is formed between thesecond packaging layer 17 and thefirst packaging layer 16, and a heat insulation piece is arranged inside theheat insulation cavity 18 and used for blocking heat exchange inside and outside the case;

charging the implanted part of the implantable medical device with an external power supply results in a local tissue heating effect, and therefore, in this embodiment, the external enclosure 14 enclosing the implanted part is provided in two parts and athermal insulation chamber 18 is provided between the two parts, and the heat dissipated by theinternal detector 15 during charging is blocked by the thermal insulation inside thethermal insulation chamber 18, reducing the local tissue heating effect.

The heat insulation piece comprises aheat insulation film 19 formed by stacking single-layer graphene, MoS2 and WSe2, and theheat insulation film 19 is connected with the inner wall surface and the outer wall surface of the heat insulation layer into a whole;

as a specific structure of the thermal insulation member, in this embodiment, thethermal insulation film 19 formed by stacking single-layer graphene, MoS2 and WSe2 is used, which can well control the thickness of the thermal insulation member, reduce the overall size of the device, and well suppress thermal vibration of atoms, and most of energy is lost when the atoms pass through each layer.

The heat insulation piece comprises two layers ofheat insulation films 19, the two layers ofheat insulation films 19 are connected through a connectingpiece 20 and are respectively adhered to the inner wall of thesecond packaging layer 17 and the outer wall of thefirst packaging layer 16 into a whole, and avacuum layer 21 is formed between the two layers ofheat insulation films 19;

as another embodiment of the heat insulating member of the present invention, twoheat insulating films 19 are provided, and the twoheat insulating films 19 are connected by a connectingmember 20, and the connectingmember 20 is equally disposed around theheat insulating film 19 outside thefirst sealing layer 16, so that avacuum layer 21 is formed between the twoheat insulating films 19, further enhancing the heat insulating effect.

Example four

A processing method of an implantable medical detection device is applied to the implantable medical detection device and comprises the following steps:

the method comprises the following steps: encapsulating theinternal detector 15 of the implanted part in the body with an encapsulation device to form afirst encapsulation layer 16;

step two: adhering aheat insulation film 19 on the outer side of thefirst packaging layer 16, and completely wrapping thefirst packaging layer 16 by using theheat insulation film 19;

step three: the device continues to be encapsulated by the encapsulation equipment to form asecond encapsulation layer 17.

In the second step, after theheat insulation film 19 is wrapped around thefirst encapsulation layer 16, a plurality ofconnection members 20 are mounted on the outer surface of the heat insulation film, and the plurality ofconnection members 20 are equally distributed around theheat insulation film 19 and then wrapped with the secondheat insulation film 19.

The heat insulation piece is formed by theheat insulation film 19, so that the device can be conveniently machined and formed, when the device is manufactured, only theinternal detector 15 of the implanted part needs to be normally packaged, the thickness of the device is controlled during packaging, then, a layer ofheat insulation film 19 is wrapped and adhered on the outer part of the packaged device, and then the device is continuously packaged, so that the process is simple and convenient, the rapid forming of theheat insulation cavity 18 is realized, and the manufacturing efficiency of the device is improved;

in order to further improve the heat insulation effect of theheat insulation cavity 18 and reduce the local heat effect, two layers of heat insulation films are arranged, therefore, after thefirst packaging layer 16 is wrapped by one layer ofheat insulation film 19, a plurality of connectingpieces 20 are arranged on the surface of the first packaging layer, and are arranged in equal parts around the outer ring of theheat insulation film 19, then the heat insulation film is continuously wrapped outside the connectingpieces 20, finally, the packaging equipment is used for continuously packaging the device, namely, the two layers ofheat insulation films 19 are arranged between thefirst packaging layer 16 and thesecond packaging layer 17, and avacuum layer 21 is formed between the two layers ofheat insulation films 19, so that the device is convenient to process and manufacture, and the heat insulation effect of the product is good;

in order to ensure the using effect of the connectingpiece 20, theheat insulation film 19 is conveniently wrapped outside the connecting piece, thevacuum layer 21 is conveniently formed, the connectingpiece 20 comprises two connecting pieces arranged along the heat insulation film, a top piece is arranged between the two connecting pieces, the connecting pieces and the top piece provide an installation base layer for theheat insulation film 19, a space is reserved between the connecting pieces and the top piece, thevacuum area 21 is formed, and the manufacturing efficiency is improved.

The working principle is as follows: installpower supply portion 2 on close-fittingundershirt 1, during the use, directly dress close-fittingundershirt 1 for external power source is in the same place with human twenty-four hours laminating, guarantees to charge constantly, and simultaneously, close-fittingundershirt 1 makespower supply portion 2 and human body tightly laminate, and utilizes theadhesion patch 5 ofadhesion zone 3, makespower supply portion 2 and human skin paste, can.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.

Claims (10)

1. An implantable medical sensing device comprising an intracorporeal implanted portion and an extracorporeal sensing portion which transcutaneously and wirelessly communicate by electromagnetic coupling or optical coupling, characterized in that: the internal implanted part is powered by an external power supply, the external power supply is a wearable power supply and comprises a close-fitting vest (1), a power supply part (2) is arranged on the surface of the close-fitting vest (1), the power supply part (2) is fixedly adhered to the skin of a human body, an adhering area (3) and a radio frequency area (4) are arranged on the surface of the power supply part (2), the adhering area (3) is arranged around the radio frequency area (4), an adhesive sheet (5) is laid on the adhering area (3), and the adhesive sheet (5) is adhered and connected with the skin of the human body; the power supply part (2) is internally provided with a radio frequency oscillator, a radio frequency power amplifier and an external primary induction coil, the internal implantation part is provided with a small secondary induction coil, the small secondary induction coil of the internal implantation part is arranged below the external primary coil in parallel, and the small secondary induction coil is used for inducing radio frequency voltage; the internal components of the power supply unit (2) are sealed by a case.

2. The implantable medical sensing device of claim 1, wherein: the power supply part (2) is detachably connected with the close-fitting vest (1) through the installation part (6), the installation part (6) is connected with the close-fitting vest (1) into a whole, the surface of the installation part (6) is provided with (7) matched with the power supply part (2), and the power supply part (2) enters the inner cavity of the installation groove (7) and is fixedly connected with the power supply part in a clamping manner.

3. The implantable medical sensing device of claim 1, wherein: the casing includes first casing (8) and second casing (9), be waterproof material with one side housing face of human surface contact, the joint hole is seted up to the inside of first shell, the inboard position that corresponds the joint hole of second casing (9) sets up connects the arris, it gets into joint hole and its joint to connect the arris, joint groove (10) are all seted up with the opposite face of second casing (9) in first casing (8), joint groove (10) set up along the connection face of two casings, and inside fixed mounting silicon rubber strip (11) of one of them casing, the inside that the other end side of silicon rubber strip (11) got into another casing is fixed rather than the joint.

4. The implantable medical sensing device of claim 1, wherein: the adhesive patch (5) comprises a skin contact surface; conversion means for recording the acoustic signal and converting it into a first electrical output signal; an adhesive element for attaching the converting means to a skin surface; transmission means for transmitting the electrical output signal to a peripheral device; and means for managing the pressure between the converting means and the skin contacting surface.

5. The implantable medical sensing device of claim 4, wherein: the adhesive patch (5) comprises a sound absorption layer (12) and a signal conversion transmission layer (13), wherein the sound absorption layer (12) comprises a high-density material, and the high-density material is a hydrocolloid material.

6. The implantable medical sensing device of claim 1, wherein: the in vivo implanted part comprises an external packaging shell (14) and an internal detector (15), the external packaging shell (14) comprises a first packaging layer (16) and a second packaging layer (17), a heat insulation cavity (18) is formed between the second packaging layer (17) and the first packaging layer (16), and a heat insulation piece is arranged inside the heat insulation cavity (18) and used for blocking heat exchange inside and outside the shell.

7. The implantable medical sensing device of claim 6, wherein: the heat insulation piece comprises a heat insulation film (19) formed by stacking single-layer graphene, MoS2 and WSe2, and the heat insulation film (19) is integrally connected with the inner wall surface and the outer wall surface of the heat insulation layer.

8. The implantable medical sensing device of claim 7, wherein: the heat insulation piece comprises two layers of heat insulation films (19), the two layers of heat insulation films (19) are connected through a connecting piece (20) and are respectively adhered to the inner wall of the second packaging layer (17) and the outer wall of the first packaging layer (16) into a whole, and a vacuum layer (21) is formed between the two layers of heat insulation films (19).

9. A method for processing an implantable medical test device, applied to an implantable medical test device of claims 1-8, comprising the steps of:

the method comprises the following steps: encapsulating an internal detector (15) of the implanted part in the body with an encapsulation device, forming a first encapsulation layer (16);

step two: adhering a heat insulation film (19) on the outer side of the first packaging layer (16), and completely wrapping the first packaging layer (16) by using the heat insulation film (19);

step three: and continuing to package the device by using the packaging equipment to form a second packaging layer (17).

10. The method of claim 9, wherein in the second step, after the first packaging layer (16) is wrapped by the thermal insulation film (19), a plurality of connecting members (20) are mounted on the outer surface of the first packaging layer, the plurality of connecting members (20) are equally spaced around the thermal insulation film (19), and then the second packaging layer (19) is used to wrap the plurality of connecting members.

Images