Medical boiling sterilizer for sterilizing medical instruments

By using a multi-layered storage basket and a piston mechanism driven by high-pressure steam, the scissors are opened and liquid is sprayed, solving the problem that traditional medical boiling sterilizers have difficulty cleaning the joints of precision instruments, and achieving efficient sterilization and energy recycling.

CN121648327APending Publication Date: 2026-03-13GOLDSMITHS TECH (DONGGUAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-23
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional medical boiling sterilizers are ineffective at removing contaminants from the sterilization blind spots of precision instruments with joints or locking mechanisms (such as surgical scissors and hemostats), which poses a risk of cross-infection.

Method used

It adopts a multi-layer storage basket structure, uses high-pressure steam to drive the piston and conical block to periodically push the scissors to open and close, combined with liquid jetting, to achieve dynamic exposure and cleaning of the instrument joints. It integrates steam power and liquid jetting into the same piston mechanism, and uses a condensation component to recover steam and achieve energy recycling.

Benefits of technology

It enables dynamic exposure and cleaning of the joints of precision instruments, improving cleaning efficiency and targeting, ensuring disinfection effectiveness, and achieving energy recovery and environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a medical boiling sterilizer for sterilizing the medical apparatus and instruments, which comprises a box body and further comprises a plurality of layers of storage baskets arranged in the box body in a sliding manner and used for placing the apparatus and a limiting assembly arranged on the lowermost layer and used for placing scissors; the limiting assembly comprises a plurality of containing grooves formed in the containing basket, two conical blocks for driving the scissors to be opened and closed are arranged in the containing grooves, one conical block is fixedly arranged in the containing groove, the other conical block is arranged in the containing groove in a sliding mode, when the instruments are boiled and disinfected, the sliding conical blocks push the scissors to be opened and closed, and the box body is arranged in a multi-layer mode. When the scissors are opened and closed, it can be effectively guaranteed that the hinged position of the scissors makes full contact with boiling water, the cleaning quality and efficiency of the scissors are guaranteed, and the situation that when instruments such as scissors and pliers are cleaned, cleaning dead corners appear at the hinged position is avoided.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a medical boiling sterilizer for sterilizing medical devices. Background Technology

[0002] Used medical devices are covered with a large number of bacteria and viruses. The basic components of bacteria and viruses are proteins. Proteins denature when exposed to high temperatures and lose their original physiological activity. Therefore, medical personnel usually use boiling to disinfect medical devices. Boiling is one of the existing effective methods for disinfecting and sterilizing medical devices.

[0003] Traditional medical sterilizers rely primarily on static immersion and boiling convection. Their core drawback lies in their inability to effectively address the sterilization blind spots of precision instruments with joints or locking mechanisms (such as surgical scissors and hemostatic forceps). The gaps at the hinges of these instruments are extremely narrow. During static sterilization, surface tension and airlock effects severely impede the penetration of boiling water and steam, making it difficult to remove internal contaminants and compromising sterilization effectiveness, thus posing a significant risk of cross-infection. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a medical boiling sterilizer for sterilizing medical devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a housing; further comprising: A sliding storage basket for placing instruments is installed inside the box. The storage basket has multiple layers, and the bottom layer is equipped with a limiting component for placing scissors. The limiting component includes multiple placement slots on the storage basket, and two conical blocks that drive the scissors to open and close are provided in the placement slots. One of the conical blocks is fixedly installed in the placement slot, and the other conical block is slidably installed in the placement slot. When the instrument is boiled for sterilization, the sliding conical block pushes the scissors to open and close.

[0006] Preferably, the storage basket is provided with a moving component for driving the conical block to move.

[0007] Preferably, the moving component includes a slide groove formed in the placement slot, a connecting frame is slidably disposed in the slide groove, a plurality of connecting frames are fixedly connected to each other, and a conical block is fixedly disposed on the connecting frame.

[0008] Preferably, the placement groove is provided with a nozzle for rinsing the hinge joint of the scissors when they open and close, and the nozzle sprays liquid when the scissors open and close.

[0009] Preferably, the storage basket is provided with a thrust assembly for driving the connecting frame to move and for spraying liquid from the nozzle.

[0010] Preferably, the thrust assembly includes a piston portion disposed on the storage basket. The piston portion includes a piston tube fixedly disposed on the storage basket, a piston rod slidably disposed inside the piston tube, a piston plate fixedly disposed at the end of the piston rod, and the other end of the piston rod fixedly disposed to the connecting frame. The piston tube communicates with the nozzle and with the top of the housing. An exhaust pipe is also disposed through the piston tube, and a spring for the reciprocating motion of the piston rod is sleeved on the piston rod.

[0011] Preferably, a booster is provided at the junction of the piston tube and the housing, and the booster and the housing are interconnected.

[0012] Preferably, a condensing assembly is provided on the housing, and the condensing assembly is interconnected with the exhaust pipe; the condensing assembly includes a condensing box fixedly installed on the housing, a serpentine condensing tube is provided inside the condensing box, and the condensing tube is interconnected with the exhaust pipe, and a solenoid valve is provided at the point where the exhaust pipe and the piston tube are connected to the housing.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes high-pressure steam generated during boiling sterilization as a power source to drive a piston and a conical block to periodically push scissors in an opening and closing motion. This achieves the purpose of forcibly changing the joint posture of the instruments during sterilization, realizing dynamic exposure and contact of the dead corners inside the joints of articulated instruments such as scissors and pliers. This ensures that high-temperature steam and cleaning fluid can fully act on all surfaces. At the same time, the steam power drive and liquid spray cleaning are integrated into the same piston mechanism. Utilizing the reciprocating stroke of the piston, "pushing the scissors to open" and "extruding liquid spray" are completed simultaneously in one push. In the reset stroke, "scissors reset / close" and "drawing in reserve liquid" are completed. This achieves the purpose of precise synchronization between mechanical action and liquid cleaning, enabling directional rinsing of the articulated points at the moment the instrument is opened to its maximum angle, greatly improving cleaning efficiency and targeting. The equipment is equipped with a condensation box and a serpentine condenser to recover the discharged steam, and a spring is used to realize the automatic reset of the piston mechanism. This achieves the purpose of condensing and recovering waste steam, avoiding the increase of ambient humidity, and recycling the kinetic and thermal energy of the steam to drive the cleaning process, realizing the purpose of energy recovery and environmental protection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front structure proposed in this invention; Figure 2 This is a schematic diagram of the rear structure proposed in this invention; Figure 3 This is a schematic diagram of the local front structure proposed in this invention. Figure 1; Figure 4 This is a schematic diagram of the local front structure proposed in this invention. Figure 2 ; Figure 5 This is a schematic diagram of a partial lower structure proposed in this invention; Figure 6 This is a schematic cross-sectional view of a partial upper structure proposed in this invention; Figure 7 This is a schematic diagram of the internal structure from a local lower viewpoint proposed in this invention.

[0015] In the diagram: 1. Box body; 2. Storage basket; 3. Limiting component; 31. Placement slot; 32. Conical block; 4. Moving component; 41. Slide groove; 42. Connecting frame; 5. Nozzle; 6. Thrust component; 61. Piston; 62. Spring; 63. Intensifier; 7. Condensation component; 71. Condensation box; 72. Condensation pipe; 73. Solenoid valve. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0018] Reference Figures 1-7 A medical boiling sterilizer for sterilizing medical devices includes a housing 1 and further includes: A sliding storage basket 2 is installed inside the housing 1 for placing instruments. The storage basket 2 has multiple layers, and the bottom layer is equipped with a limiting component 3 for placing scissors. The limiting component 3 includes multiple placement slots 31 on the storage basket 2, and two conical blocks 32 for driving the opening and closing of scissors are provided in the placement slots 31. One conical block 32 is fixedly installed in the placement slot 31, and the other conical block 32 is slidably installed in the placement slot 31. When the instruments are boiled for sterilization, the sliding conical block 32 pushes the scissors to open and close. The box 1 is multi-layered, so instruments can be placed according to the instruments to be sterilized. Ordinary instruments can be placed on the upper layer, while pliers or scissors can be placed on the bottom layer. At the same time, when placing them, the conical blocks 32 are placed in the handle of the scissors. At this time, the two conical blocks 32 limit the handle of the scissors. When the equipment is sterilized, the sliding conical block 32 pushes one handle of the scissors to move. Since the other handle is limited, the scissors will open and close. When the scissors open and close, it can effectively ensure that the hinge of the scissors is fully in contact with boiling water, ensuring the cleaning quality and efficiency of the scissors and avoiding the situation of cleaning dead corners at the hinge when cleaning scissors and pliers.

[0019] Preferably, the storage basket 2 is provided with a moving component 4 for driving the conical block 32 to move. The moving component 4 can effectively push the conical block 32 to move. As the conical block 32 moves, the scissors can be fully driven to open and close, ensuring the cleaning quality and efficiency of the scissors.

[0020] Preferred, Reference Figure 6 The moving component 4 includes a slide 41 opened in the placement slot 31. A connecting frame 42 is slidably arranged in the slide 41. Multiple connecting frames 42 are fixedly connected to each other, and a conical block 32 is fixedly arranged on the connecting frame 42. When the connecting frame 42 moves, the connecting frame 42 can move along the slide. The slide 41 can effectively limit the connecting frame 42, ensuring the movement stability of the connecting frame 42, so as to fully guarantee the opening and closing of the scissors.

[0021] Preferred, Reference Figure 6 The placement tank 31 is equipped with a nozzle 5 for rinsing the hinge joint of the scissors when they are opened and closed. When the scissors are opened and closed, the nozzle 5 sprays liquid. At this time, the nozzle 5 can fully spray the liquid onto the hinge joint of the scissors. The liquid sprayed from the nozzle 5 can fully clean the hinge joint of the scissors, improving its cleaning efficiency and quality.

[0022] Preferably, the storage basket 2 is provided with a thrust assembly 6 for driving the connecting frame 42 to move and for spraying liquid out of the nozzle 5, which facilitates driving the connecting frame 42 to move and facilitates the delivery of liquid to the nozzle 5.

[0023] Preferred, Reference Figure 7The thrust assembly 6 includes a piston part 61 mounted on the storage basket 2. The piston part 61 includes a piston tube fixedly mounted on the storage basket 2, a piston rod slidably mounted inside the piston tube, a piston plate fixedly mounted at the end of the piston rod, and the other end of the piston rod fixedly mounted to the connecting frame 42. The piston tube communicates with the nozzle 5 and with the top of the housing 1. An exhaust pipe also communicates through the piston tube. A spring 62 for the reciprocating motion of the piston rod is fitted on the piston rod. When the equipment boils, the boiling water produces a large amount of steam. When the steam rises, it enters the piston tube through the hose. At this time, the solenoid valve 73 on the exhaust pipe closes. As the gas enters the piston tube, it acts on the piston plate. The thrust of the steam pushes the piston plate to move, and the piston rod moves simultaneously. When the piston rod moves, the spring 62 is stretched, and the connecting frame 42... The piston moves under the push of the piston rod, that is, the piston rod can push the connecting frame 42 to drive the conical block 32 to move, realizing the opening and closing of the scissors. When the piston rod moves to the appropriate position, the solenoid valve 73 at the exhaust pipe opens, while the solenoid valve 73 at the connection with the housing 1 closes. That is to say, steam will not enter the piston tube at this time. At this time, the gas in the piston tube is discharged through the exhaust pipe. As the gas in the piston tube is discharged, the spring 62 pushes the piston rod to reset. During the reset process, the piston rod will draw liquid into the piston tube through the nozzle 5, so that the liquid fills the piston tube. When the steam pushes the piston plate to move again, the piston plate will squeeze the liquid in the piston tube at the same time, so that it is sprayed out through the nozzle 5 and sprayed onto the opening and closing of the scissors, thus forming a periodic movement to realize the opening and closing of the scissors, and at the same time realize the collection of steam, and at the same time realize the spray cleaning of the scissor hinge.

[0024] Preferably, a booster 63 is provided at the point where the piston tube and the housing 1 pass through, and the booster 63 is in communication with the housing 1. The booster 63 can effectively increase the air pressure entering the piston tube and ensure the movement of the piston rod.

[0025] Preferred, Reference Figure 4 A condenser assembly 7 is installed on the housing 1, and the condenser assembly 7 is interconnected with the exhaust pipe. The condenser assembly 7 includes a condenser box 71 fixedly installed on the housing 1. A serpentine condenser tube 72 is installed inside the condenser box 71, and the condenser tube 72 is interconnected with the exhaust pipe. Solenoid valves 73 are installed at the connection points between the exhaust pipe and the piston tube and the housing 1. The gas discharged from the exhaust pipe enters the condenser tube 72 and is condensed inside the condenser tube 72. After the steam is condensed, it can be prevented from being discharged, which would cause dampness in the room. At the same time, the liquid in the steam can be collected for subsequent treatment and use. Working principle refer to Figure 1The chamber 1 is multi-layered, allowing for placement according to the type of instruments to be sterilized. Ordinary instruments can be placed on the upper layer, while pliers or scissors can be placed on the bottom layer. When placing instruments, refer to... Figure 6 The conical blocks 32 are placed inside the handle of the scissors. At this time, the two conical blocks 32 limit the handle of the scissors. The equipment is started, and the water in the chamber 1 is heated to boiling, generating a large amount of high-temperature steam. During the rising process, part of the steam enters the booster 63 through the pipeline. After the pressure is increased, it enters the piston tube from the top of the chamber 1 under the guidance of the control solenoid valve 73.

[0026] refer to Figure 7 When solenoid valve 73 connects the piston tube to the steam passage of housing 1 while closing the passage to the exhaust pipe, the pressurized high-temperature and high-pressure steam enters the piston tube and acts on the piston plate. The steam pressure pushes the piston plate to overcome the elastic force of spring 62, causing the piston rod to move to one side.

[0027] The linear motion of the piston rod directly pushes the connecting frame 42, which is fixedly connected to it, to slide along the slide groove 41. The connecting frame 42 drives all the movable conical blocks 32 fixed to it to move synchronously. For the scissors placed between the fixed conical block 32 and the movable conical block 32, the movement of the movable conical block 32 will push one handle of the scissors, while the other handle is restricted by the fixed conical block 32, forcing the blade of the scissors to rotate around the hinge axis to close.

[0028] When the piston rod moves to the end of its preset stroke, the control system switches the state of solenoid valve 73: closing the steam passage between the piston tube and housing 1, and opening the passage between the piston tube and the exhaust pipe. The high-pressure steam in the piston tube is rapidly discharged through the exhaust pipe and enters the serpentine condenser tube 72 inside the condenser box 71. The steam condenses into liquid in the condenser tube 72 and is recovered. The pressure inside the piston tube drops sharply.

[0029] At this point, the stretched spring 62 releases its elastic force, pulling the piston rod, piston plate, and connecting bracket 42 to their reverse reset state. During the piston plate's reset movement, a negative pressure is generated inside the piston tube, drawing the liquid from the housing 1 into the piston tube cavity through the pipes and nozzle 5, thus reserving liquid for the next spray. During the reset process, the movable conical block 32 moves in the reverse direction, at which point the scissors gradually open.

[0030] Once the piston rod has fully reset, the solenoid valve 73 switches again, connecting the piston tube to the steam source. A new batch of steam enters the piston tube, pushing the piston plate to move again. This time, the piston plate not only pushes the connecting frame 42 to close the scissors again, but also compresses its front chamber, spraying the liquid sucked in in the previous cycle at high speed through the nozzle 5, precisely targeting the hinge shaft of the scissors, which is currently in the open state, for powerful flushing.

[0031] This process is repeated continuously throughout the boiling and sterilization process. The scissors are periodically driven to open and close, and when they open, their hinged parts are cleaned by directional liquid jets from nozzle 5, achieving dynamic, thorough, and comprehensive cleaning and sterilization. This invention utilizes high-pressure steam generated during boiling sterilization as a power source to drive a piston and conical block 32 to periodically push the scissors in an opening and closing motion. This achieves the purpose of forcibly changing the joint posture of the instruments during sterilization, realizing dynamic exposure and contact of the dead corners inside the joints of articulated instruments such as scissors and pliers. This ensures that high-temperature steam and cleaning liquid can fully act on all surfaces. At the same time, the steam power drive and liquid spray cleaning are integrated into the same piston mechanism. Utilizing the reciprocating stroke of the piston, "pushing the scissors to open" and "squeezing out liquid spray" are completed simultaneously in one push. In the reset stroke, "scissors reset / close" and "drawing in reserve liquid" are completed, achieving the purpose of precise synchronization between mechanical action and liquid cleaning. This enables directional rinsing of the articulation points at the moment when the instrument is opened to its maximum angle, greatly improving cleaning efficiency and targeting. The equipment is equipped with a condenser box 71 and a serpentine condenser tube 72 to recover the discharged steam, and the piston mechanism is automatically reset using a spring 62. This achieves the purpose of condensing and recovering waste steam, avoiding increasing the ambient humidity, and recycling the kinetic and thermal energy of the steam to drive the cleaning process, realizing the purpose of energy recovery and environmental protection.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A medical boiling sterilizer for sterilizing medical devices, comprising a housing (1): characterized in that, Also includes: A storage basket (2) for placing instruments is slidably set inside the box (1). The storage basket (2) is multi-layered, and the bottom layer is provided with a limiting component (3) for placing scissors. The limiting component (3) includes multiple placement slots (31) opened on the storage basket (2), and two conical blocks (32) for driving the scissors to open and close are provided in the placement slots (31). One of the conical blocks (32) is fixedly set in the placement slot (31), and the other conical block (32) is slidably set in the placement slot (31). When the instrument is boiled for sterilization, the sliding conical block (32) pushes the scissors to open and close.

2. A medical boiling sterilizer for sterilizing medical devices according to claim 1, characterized in that, The storage basket (2) is provided with a moving component (4) for driving the conical block (32) to move.

3. A medical boiling sterilizer for sterilizing medical devices according to claim 2, characterized in that, The moving component (4) includes a slide (41) opened in the placement slot (31), a connecting frame (42) is slidably arranged in the slide (41), a plurality of the connecting frames (42) are fixedly connected to each other, and a conical block (32) is fixedly arranged on the connecting frame (42).

4. A medical boiling sterilizer for sterilizing medical devices according to claim 3, characterized in that, The placement groove (31) is provided with a nozzle (5) for rinsing the hinge of the scissors when they are opened and closed, and the nozzle (5) sprays out liquid when the scissors are opened and closed.

5. A medical boiling sterilizer for sterilizing medical devices according to claim 4, characterized in that, The storage basket (2) is provided with a thrust assembly (6) for driving the connecting frame (42) to move and for spraying liquid from the nozzle (5).

6. A medical boiling sterilizer for sterilizing medical devices according to claim 5, characterized in that, The thrust assembly (6) includes a piston part (61) disposed on the storage basket (2). The piston part (61) includes a piston tube fixedly disposed on the storage basket (2). A piston rod is slidably disposed inside the piston tube. A piston plate is fixedly disposed at the end of the piston rod. The other end of the piston rod is fixedly disposed with the connecting frame (42). The piston tube and the nozzle (5) are interconnected. The piston tube is also interconnected with the top of the box (1). An exhaust pipe is also disposed through the piston tube. A spring (62) for the reciprocating motion of the piston rod is sleeved on the piston rod.

7. A medical boiling sterilizer for sterilizing medical devices according to claim 6, characterized in that, A booster (63) is provided at the point where the piston tube and the housing (1) pass through, and the booster (63) and the housing (1) are interconnected.

8. A medical boiling sterilizer for sterilizing medical devices according to claim 7, characterized in that, A condenser assembly (7) is provided on the housing (1), and the condenser assembly (7) is connected to the exhaust pipe; the condenser assembly (7) includes a condenser box (71) fixedly installed on the housing (1), a serpentine condenser tube (72) is provided in the condenser box (71), and the condenser tube (72) is connected to the exhaust pipe. Solenoid valves (73) are provided at the points where the exhaust pipe and the piston tube are connected to the housing (1).