A high-temperature resistant polyetherimide sterilization box and its preparation method

Abstract

The present invention discloses a high-temperature resistant polyetherimide sterilization box and a preparation method thereof, comprising: a sterilization box body, a basket, a positioning assembly and a blocking and shock-absorbing assembly. The surface of the sterilization box body is provided with a box cover and a fastener adapted to the box cover is provided on one side. The sterilization box body and the box cover are components made of polyetherimide material. The basket is located on the inner side of the sterilization box body, and the bottom surface of the inner cavity of the basket is provided with a plurality of evenly distributed protrusions. The blocking and shock-absorbing assembly includes a buckle seat and a floating end. The outer periphery and bottom surface of the floating end are provided with a plurality of energy absorbers. The floating end is movably sleeved on the inner side of the buckle seat, and the top surface of the buckle seat is provided with. In the present invention, by setting a new positioning assembly structure and utilizing the splicing combination of the blocking and shock-absorbing assembly and the protrusions inside the basket, the positioning assembly can be positioned at any position to adapt to instruments of different shapes and types. In the positioning of the instrument, the weight of the instrument itself and the elastic contact positioning of the rubber-pressed felt are used to clamp and fix the instrument, thereby improving the stability of the instrument inside the basket.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a high-temperature resistant polyetherimide sterilization box and a preparation method thereof. Background Art

[0002] A sterilization storage box for medical devices is a container used to store sterilized medical devices. Its primary function is to protect the devices from contamination and ensure they remain sterile during storage. The following is a general description of sterilization storage boxes for medical devices: These are typically made of high-quality plastic or stainless steel, or other heat- and corrosion-resistant materials, ensuring excellent durability and antimicrobial properties. Sterilization storage boxes are typically designed to accommodate the size and shape of medical devices, accommodating a variety of device types and specifications. They typically feature a transparent lid or cover to allow for visibility of the device's storage and ensure a tight seal.

[0003] Existing sterilization storage boxes for medical devices usually lack an effective positioning structure for the devices, causing the devices to shake inside the box, especially when they are easily vibrated during transportation, which may cause damage to the devices or reduce the service life of the devices. Some existing sterilization storage boxes lack effective protective structures and cannot effectively protect the devices from external impact or extrusion. Especially for precision medical devices, this may cause damage or deformation of the devices, affecting their normal use. Some storage boxes are equipped with a foam support structure that is compatible with the structure of the medical device to wrap and support the medical device. Although this effectively improves the stability of the device inside the storage box, this positioning method has a large contact area with the surface of the device, and there are many blind spots for cleaning that are prone to hiding water-stained bacteria, etc., and the adaptability is low, and it cannot be replaced to store different devices. In addition, existing sterilization storage boxes have limitations in material selection. Some materials cannot be directly placed in a disinfection cabinet for high-temperature steam sterilization or other ion sterilization. This limits the sterilization method of the sterilization storage box and increases the inconvenience of use. In view of this, research and improvement are carried out on the existing problems, and a high-temperature resistant polyetherimide sterilization box and a preparation method thereof are provided to solve the current problems. The purpose is to achieve the purpose of solving the problems and improving the practical value through this technology. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted by the present invention is as follows: a high-temperature resistant polyetherimide sterilization box, comprising: a sterilization box body, a lifting basket, a positioning assembly and a blocking and shock-absorbing assembly, the surface of the sterilization box body is provided with a box cover and a fastener adapted for the box cover on one side, the sterilization box body and the box cover are made of polyetherimide material, the lifting basket is located on the inner side of the sterilization box body, and the bottom surface of the inner cavity of the lifting basket is provided with a plurality of evenly distributed protrusions, the blocking and shock-absorbing assembly comprises a buckle seat and a floating end, the outer periphery and bottom surface of the floating end are provided with a plurality of energy absorbers, the floating end is movably sleeved on the inner side of the buckle seat, the top surface of the buckle seat is provided with a supporting ear, the positioning assembly comprises a floating seat and vertical rods, clamping ears and linkage bars symmetrically arranged on both sides of the floating seat, the bottom end of the vertical rod is provided with two pins rotatably connected to one end of the linkage bar and the surface of the supporting ear respectively, and the other end of the linkage bar is rotatably connected to the surface of the floating seat, and the surface of the clamping ear is provided with a movable ear rotatably connected to the top end of the vertical rod;

[0006] The top of the floating end is vertically connected to the bottom surface of the floating seat. The energy dissipator includes a permanent magnetic pin, a spring and several copper rings. The two ends of the spring are respectively fixedly connected to the inner side of the buckle seat and the surface of the floating end, and the spring is sleeved on the outer side of the permanent magnetic pin. One end of the permanent magnetic pin is fixedly installed on the surface of the floating end. Several copper rings are arranged in a stacked manner and connected in sequence, and insulating rings are provided between adjacent copper rings. One end of the copper ring is fixed to the inner side of the buckle seat and slidably sleeved on the outer side of the permanent magnetic pin.

[0007] In a preferred example, the present invention can be further configured as follows: handles are movably installed on both sides of the sterilization box body, the bottom surface of the box cover is provided with a sealing edge, and the top surface of the sterilization box body is provided with a buckle groove adapted to the sealing edge.

[0008] In a preferred example, the present invention can be further configured as follows: a rubber pressing felt is adhered to the bottom surface of the sealing edge, a plurality of needles densely distributed in a matrix are provided on the surface of the rubber pressing felt, and the rubber pressing felt and the needles are transparent silicone material components.

[0009] In a preferred example, the present invention can be further configured as follows: the basket is made of medical-grade stainless steel, the surface of the basket is provided with densely distributed air holes, and both ends of the top surface of the basket are provided with handles.

[0010] In a preferred example, the present invention can be further configured as follows: through grooves are provided on both sides of the sterilization box body and filter windows are fixed thereto, the filter windows are of a mesh structure and a microporous filter disc is provided inside, and the microporous filter disc is of a polytetrachloroethylene microporous membrane structure.

[0011] In a preferred example, the present invention can be further configured as follows: the bosses are arranged in a matrix, and the bottom surface of the buckle seat is provided with buckle grooves adapted to the bosses.

[0012] In a preferred example, the present invention can be further configured as follows: the clamping ears are in the shape of arc strips and are symmetrically arranged on both sides of the floating seat, the top surface of the floating seat is provided with a support platform for lifting objects, and the bottom ends of the two clamping ears are movably abutted against both sides of the support platform.

[0013] A method for preparing a high-temperature resistant polyetherimide sterilization box comprises the following steps:

[0014] S1 prepares raw materials, including high-temperature resistant polyetherimide materials, molds and auxiliary materials:

[0015] S2: Prepare the mold and make the mold of the high-temperature resistant polyetherimide sterilization box according to the design requirements to ensure that the mold can form the expected shape and size of the box body:

[0016] S3 material injection molding, add polyetherimide raw materials into the injection molding machine, melt them through heat and pressure, and fill them into the pre-prepared mold, ensuring that they are completely filled and bubbles are excluded:

[0017] S4 injection molding heats and pressurizes the material in the mold, allowing the polyetherimide material to fully flow and fill all parts of the mold to form a complete box structure:

[0018] S5 Processing and Adjustment: Perform necessary processing and adjustments on the injection molded box body, including cutting, polishing and other processes to ensure that its size and surface quality meet the requirements:

[0019] S6 Assembly accessories: If necessary, install internal dividers, fixing devices or other accessories in the box body to improve the functionality and convenience of the sterilization box.

[0020] The high-temperature resistant polyetherimide material in step S1 has high-temperature stability and corrosion resistance, and the injection molding process in step S3 ensures complete filling and eliminates bubbles.

[0021] The beneficial effects achieved by the present invention are:

[0022] 1. In the present invention, by setting up a new positioning component structure and utilizing the spliced ​​combination of the blocking and shock-absorbing components and the convex columns inside the basket, the positioning component can be positioned at any position to adapt to instruments of different shapes and types. In the positioning of the instrument, the weight of the instrument itself and the elastic contact positioning of the rubber-pressed felt are used to enable the clamping ears to clamp and fix the instrument, thereby improving the stability of the instrument inside the basket.

[0023] 2. In the present invention, by setting up a blocking and shock-absorbing component structure, during the movement of the box body, several energy absorbers are used to suspend and support the positioning component to isolate the vibration transmission between the box body and the instrument, and through the reciprocating motion of the permanent magnetic pin inside the copper ring, the electromagnetic effect is used to convert and consume kinetic energy, gradually eliminating the kinetic energy of the positioning component and the instrument, achieving shock absorption protection, further improving the storage stability of the instrument, and avoiding damage to the instrument due to collisions.

[0024] 3. In the present invention, high-temperature resistant polyetherimide is injection molded. The high-temperature resistant polyetherimide is an amber transparent thermoplastic engineering resin. Due to its material properties, it is suitable for high-temperature steam and low-temperature ethylene oxide and hydrogen peroxide plasma sterilization, thereby improving the practicality of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of a sterilization box body in a closed state according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of a sterilization box according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of a basket according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the filter window structure according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic structural diagram of a positioning assembly and a blocking and vibration-absorbing assembly according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the exploded structure of a positioning component according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the exploded structure of an energy dissipater according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 100, sterilization box body; 110, box cover; 120, sealing edge; 130, fastener; 140, handle; 150, rubber-pressed felt; 160, filter window; 151, needle; 161, microporous filter;

[0035] 200, basket; 210, handle; 220, boss;

[0036] 300, positioning assembly; 310, floating seat; 320, vertical pole; 330, clamping ear; 340, linkage bar; 331, movable ear;

[0037] 400, blocking and vibration-isolating assembly; 410, buckle seat; 420, floating end; 430, energy dissipator; 411, supporting ear; 431, permanent magnet pin; 432, copper ring; 433, spring; 434, insulating ring. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0039] A high-temperature resistant polyetherimide sterilization box and a preparation method thereof provided by some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0040] Combine Figure 1-8 As shown, the present invention provides a high-temperature resistant polyetherimide sterilization box, comprising: a sterilization box body 100, a basket 200, a positioning assembly 300 and a blocking and shock-absorbing assembly 400. The surface of the sterilization box body 100 is provided with a box cover 110 and a fastener 130 adapted to the box cover 110 is provided on one side. The sterilization box body 100 and the box cover 110 are polyetherimide material components. The basket 200 is located on the inner side of the sterilization box body 100, and the bottom surface of the inner cavity of the basket 200 is provided with a plurality of evenly distributed protrusions 220. The blocking and shock-absorbing assembly 400 includes a buckle seat 410 and a floating end 420. The floating end 420 has a Several energy dissipators 430 are provided on the outer periphery and bottom surface. The floating end 420 is movably sleeved on the inner side of the buckle seat 410. The top surface of the buckle seat 410 is provided with a support ear 411. The positioning assembly 300 includes a floating seat 310 and vertical rods 320, clamping ears 330 and linkage bars 340 symmetrically arranged on both sides of the floating seat 310. The bottom end of the vertical rod 320 is provided with two pins that are respectively rotatably connected to one end of the linkage bar 340 and the surface of the support ear 411, and the other end of the linkage bar 340 is rotatably connected to the surface of the floating seat 310. The surface of the clamping ear 330 is provided with a movable ear 331 that is rotatably connected to the top of the vertical rod 320.

[0041] The top of the floating end 420 is vertically connected to the bottom surface of the floating seat 310. The energy dissipator 430 includes a permanent magnetic pin 431, a spring 433 and several copper rings 432. The two ends of the spring 433 are respectively fixedly connected to the inner side of the buckle seat 410 and the surface of the floating end 420, and the spring 433 is sleeved on the outer side of the permanent magnetic pin 431. One end of the permanent magnetic pin 431 is fixedly installed on the surface of the floating end 420. Several copper rings 432 are arranged in a stacked manner and connected in sequence, and an insulating ring 434 is provided between adjacent copper rings 432. One end of the copper ring 432 is fixed to the inner side of the buckle seat 410 and is slidably sleeved on the outer side of the permanent magnetic pin 431.

[0042] In this embodiment, handles 140 are movably installed on both sides of the sterilization box body 100 , a sealing edge 120 is provided on the bottom surface of the box cover 110 , and a buckle groove adapted to the sealing edge 120 is provided on the top surface of the sterilization box body 100 .

[0043] In this embodiment, a rubber pressing felt 150 is adhered to the bottom surface of the sealing edge 120. A plurality of needles 151 densely distributed in a matrix are provided on the surface of the rubber pressing felt 150. The rubber pressing felt 150 and the needles 151 are transparent silicone material components.

[0044] Specifically, the elastic pressure felt 150 and the needle 151 are pressed against the surface of the instrument to further fix the instrument, thereby preventing the instrument from inertially jumping off the positioning assembly 300 during the transportation movement.

[0045] In this embodiment, the basket 200 is made of medical-grade stainless steel. The surface of the basket 200 is provided with densely distributed air holes, and both ends of the top surface of the basket 200 are provided with handles 210.

[0046] Specifically, the independent basket 200 structure facilitates the removal of instruments, and the air-permeable structure of the basket 200 facilitates the sterilization of instruments inside the sterilization box 100 .

[0047] In this embodiment, both sides of the sterilization box body 100 are provided with through slots and are fixed with filter windows 160 . The filter window 160 is a mesh structure with a microporous filter 161 provided inside. The microporous filter 161 is a polytetrachloroethylene microporous membrane structure.

[0048] Specifically, the filter window 160 is used to increase the air permeability inside the sterilization box 100 to keep the interior of the sterilization box 100 dry, and the microporous filter 161 can effectively prevent the entry of dust and bacteria.

[0049] In this embodiment, the bosses 220 are arranged in a matrix, and the bottom surface of the buckle seat 410 is provided with buckle grooves adapted to the bosses 220 .

[0050] In this embodiment, the clamping ears 330 are arc-shaped and symmetrically arranged on both sides of the floating seat 310. The top surface of the floating seat 310 is provided with a support platform for lifting objects, and the bottom ends of the two clamping ears 330 are movably abutted against both sides of the support platform.

[0051] Specifically, during the positioning of the instrument, the clamping ears 330 clamp and fix the instrument by the weight of the instrument itself, thereby improving the stability of the instrument inside the basket 200.

[0052] A method for preparing a high-temperature resistant polyetherimide sterilization box comprises the following steps:

[0053] S1 prepares raw materials, including high-temperature resistant polyetherimide materials, molds and auxiliary materials:

[0054] S2: Prepare the mold and make the mold of the high-temperature resistant polyetherimide sterilization box according to the design requirements to ensure that the mold can form the expected shape and size of the box body:

[0055] S3 material injection molding, add polyetherimide raw materials into the injection molding machine, melt them through heat and pressure, and fill them into the pre-prepared mold, ensuring that they are completely filled and bubbles are excluded:

[0056] S4 injection molding heats and pressurizes the material in the mold, allowing the polyetherimide material to fully flow and fill all parts of the mold to form a complete box structure:

[0057] S5 Processing and Adjustment: Perform necessary processing and adjustments on the injection molded box body, including cutting, polishing and other processes to ensure that its size and surface quality meet the requirements:

[0058] S6 Assembly accessories: If necessary, install internal dividers, fixing devices or other accessories in the box body to improve the functionality and convenience of the sterilization box.

[0059] Furthermore, the high-temperature resistant polyetherimide material in step S1 has high-temperature stability and corrosion resistance, and the injection molding process in step S3 ensures complete filling and eliminates bubbles.

[0060] Specifically, the polyetherimide material is an amber-colored, transparent thermoplastic engineering resin that can intuitively display the status of the stored devices inside the box. It exhibits excellent stability under long-term high-temperature conditions. It has the advantages of light weight and high strength, excellent wear resistance, toughness, strength and electrical insulation properties, with a specific gravity of 1.26g / : hardness of 109 (Rockwell hardness tester). Due to its material properties, it is suitable for high-temperature steam and low-temperature ethylene oxide and hydrogen peroxide plasma sterilization.

[0061] The working principle and use process of the present invention:

[0062] When using the polyetherimide sterilization box, an appropriate number of positioning assemblies 300 are selected based on the number, shape, and structure of the instruments to be stored. The positioning assemblies 300 are positioned and fixed at different positions within the basket 200 by engaging the buckle seats 410 with the internal protrusions 220 of the basket 200. This allows the positioning assemblies 300 to be positioned in specific positions to accommodate different instruments, and the position of the positioning assemblies 300 can be arbitrarily changed according to the shape of the instruments.

[0063] The instrument is placed inside the basket 200 and placed inside the clamping ear 330. Under the action of the instrument's gravity, the surface of the floating seat 310 is pressed down, and the vertical rod 320 automatically deflects inwardly, and the clamping ear 330 is linked to deflect toward the instrument surface to automatically clamp the instrument. The instrument is positioned and locked by its own weight. The structure is simple, the positioning contact surface is small, and there are fewer dead angles for sterilization. After sterilization, the box cover 110 is closed, and the adhesive felt 150 presses down the instrument surface. The elastic pressure of the adhesive felt 150 and the anvil 151 presses against the instrument surface, further fixing the instrument, and preventing the instrument from jumping out of the positioning assembly 300 due to inertia during transportation.

[0064] During the transportation of the sterilization box 100, the floating end 420, the positioning assembly 300 and the instrument are floatingly supported by the energy absorber 430 on the bottom of the floating end 420 and the energy absorbers 430 on the periphery of the floating end 420, the vibration of the box body is isolated, and the vibration effect is converted into the expansion and contraction movement of the spring 433 and the reciprocating expansion and contraction movement of the permanent magnetic pin 431 inside the copper ring 432. During the movement of the permanent magnetic pin 431, current is generated inside the copper ring 432. According to the Lenz effect, the copper ring 432 generates a magnetic force that resists the movement effect of the permanent magnetic pin 431, and part of the kinetic energy of the permanent magnetic pin 431 is converted into the internal energy of the copper ring 432 to gradually consume the kinetic energy, so that the positioning assembly 300 and the instrument quickly restore stability, reduce shock, improve the protection effect of the instrument, and avoid vibration strain of precision instruments due to movements such as transportation.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A high temperature resistant polyetherimide sterilization box, characterized in that: include: A sterilization box body (100), a basket (200), a positioning assembly (300) and a blocking and shock absorbing assembly (400), wherein the surface of the sterilization box body (100) is provided with a box cover (110) and a fastener (130) adapted to the box cover (110) is provided on one side, the sterilization box body (100) and the box cover (110) are components made of polyetherimide material, the basket (200) is located on the inner side of the sterilization box body (100), and the bottom surface of the inner cavity of the basket (200) is provided with a plurality of evenly distributed protrusions (220), the blocking and shock absorbing assembly (400) includes a buckle seat (410) and a floating end (420), and the outer periphery and bottom surface of the floating end (420) are provided with a plurality of energy dissipators (4 30), the floating end (420) is movably sleeved on the inner side of the buckle seat (410), the top surface of the buckle seat (410) is provided with a supporting ear (411), the positioning assembly (300) includes a floating seat (310) and a vertical rod (320), a clamping ear (330) and a linkage bar (340) symmetrically arranged on both sides of the floating seat (310), the bottom end of the vertical rod (320) is provided with two pins rotatably connected to one end of the linkage bar (340) and the surface of the supporting ear (411), and the other end of the linkage bar (340) is rotatably connected to the surface of the floating seat (310), and the surface of the clamping ear (330) is provided with a movable ear (331) rotatably connected to the top end of the vertical rod (320); The top of the floating end (420) is vertically connected to the bottom surface of the floating seat (310), and the energy dissipator (430) includes a permanent magnetic pin (431), a spring (433) and a plurality of copper rings (432). The two ends of the spring (433) are fixedly connected to the inner side of the buckle seat (410) and the surface of the floating end (420), respectively, and the spring (433) is sleeved on the outer side of the permanent magnetic pin (431). One end of the permanent magnetic pin (431) is fixedly installed on the surface of the floating end (420). The plurality of copper rings (432) are stacked and connected in sequence, and an insulating ring (434) is provided between adjacent copper rings (432). One end of the copper ring (432) is fixed to the inner side of the buckle seat (410) and is slidably sleeved on the outer side of the permanent magnetic pin (431); the sterilization box Handles (140) are movably mounted on both sides of the body (100); a sealing edge (120) is provided on the bottom surface of the box cover (110); a rubber felt (150) is adhered to the bottom surface of the sealing edge (120); a plurality of needles (151) densely distributed in a matrix are provided on the surface of the rubber felt (150); the rubber felt (150) and the needles (151) are transparent silicone components; the convex columns (220) are arranged in a matrix; the bottom surface of the buckle seat (410) is provided with buckle grooves adapted to the convex columns (220); the clamping ears (330) are in the shape of arc strips and are symmetrically arranged on both sides of the floating seat (310); the top surface of the floating seat (310) is provided with a support platform for lifting objects, and the bottom ends of the two clamping ears (330) are movably abutted against both sides of the support platform.

2. A high temperature resistant polyetherimide sterilization box according to claim 1, characterized in that: The top surface of the sterilization box body (100) is provided with a buckle groove adapted to the sealing edge (120).

3. The high temperature resistant polyetherimide sterilization box according to claim 1, characterized in that: The basket (200) is a component made of medical-grade stainless steel. The surface of the basket (200) is provided with densely distributed air holes, and both ends of the top surface of the basket (200) are provided with handles (210).

4. The high temperature resistant polyetherimide sterilization box according to claim 1, characterized in that: Both sides of the sterilization box body (100) are provided with through slots and are fixed with filter windows (160) thereon. The filter windows (160) are of a mesh structure and are provided with a microporous filter disc (161) on the inner side. The microporous filter disc (161) is of a polytetrachloroethylene microporous membrane structure.

5. A method for preparing a high-temperature resistant polyetherimide sterilization box according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1 prepares raw materials, including high-temperature resistant polyetherimide materials, molds and auxiliary materials: S2: Prepare the mold and make the mold of the high-temperature resistant polyetherimide sterilization box according to the design requirements to ensure that the mold can form the expected shape and size of the box body: S3 material injection molding: Add the polyetherimide raw material into the injection molding machine, melt it through heat and pressure, and fill it into the pre-prepared mold, ensuring that it is completely filled and bubbles are eliminated: S4 injection molding heats and pressurizes the material in the mold, allowing the polyetherimide material to fully flow and fill all parts of the mold to form a complete box structure: S5 Processing and Adjustment: Perform necessary processing and adjustments on the injection molded box body, including cutting and polishing processes, to ensure that its size and surface quality meet the requirements: S6 assembly accessories are used to install internal dividers and fixing devices in the box body to improve the functionality and convenience of the sterilization box.

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