A new automatic sputum sample inoculator

The automated sputum sample inoculation device, which integrates components such as a lifting ultrasonic crushing head and a centrifugal rotating placement tray, solves the problems of cumbersome sputum sample inoculation process and cross-contamination, and achieves automated processing and uniform coating, thereby improving the positive rate.

CN224325335UActive Publication Date: 2026-06-05KEMAJIA MICROBE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KEMAJIA MICROBE TECH CO LTD
Filing Date
2025-05-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing sputum sample inoculation process is cumbersome, requiring multiple devices to complete the process in steps, which increases processing time and poses a risk of cross-contamination. Uneven smear thickness also leads to fluctuations in the positive rate.

Method used

An automated sputum sample inoculation device was designed, integrating a lifting ultrasonic crusher head, a centrifugal rotating placement tray, a vibrator, a multi-stage digestion liquid tank, a six-axis robotic arm, and a culture dish, realizing the integrated automatic processing, centrifugation, and inoculation of sputum samples, reducing manual intervention.

Benefits of technology

It has enabled automated processing of sputum samples, reduced processing time, lowered the risk of cross-contamination, ensured uniformity of smear thickness, and improved the positive rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medical examination equipment technical field's a novel sputum sample automatic inoculation appearance, including the box, the inner side fixed mounting of box has the baffle, the bottom fixed mounting of baffle has the motor, the top limiting of baffle rotates and is equipped with the support shaft, the top fixed mounting of support shaft has the placing disc, the surface of placing disc is around the disc center circle and is equipped with multiple sets of limit slot, the inner side of limit slot is provided with sample test tube, the bottom of support shaft is fixedly connected with the top output end of motor, the inner side bottom of box is installed respectively first digestive juice storage jar, second digestive juice storage jar and third digestive juice storage jar, through the lifting type ultrasonic wave breaking head, centrifugal rotation placing disc, vibrator, multistage digestive liquid jar, six axle mechanical arm and petri dish of setting, realize to sputum sample automatic processing - centrifugal - inoculation integrated design, reduce the manual intervention link, improve the use effect of device.
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Description

Technical Field

[0001] This utility model belongs to the field of medical testing equipment technology, specifically relating to a novel automatic sputum sample inoculation device. Background Technology

[0002] Sputum samples are crucial for detecting respiratory infections or diseases, aiding in diagnosis by analyzing their composition and pathogens. Proper collection, preservation, and delivery are key to accurate results. Care must be taken to avoid oral contamination, select deep sputum samples, and deliver them within 1-2 hours. Sputum inoculation systems are specialized laboratory devices for processing respiratory secretion samples, primarily serving the field of microbiology testing. Their core function is to uniformly and systematically inoculate collected sputum samples onto a culture medium surface for subsequent pathogen culture and identification.

[0003] Existing sputum sample inoculation processes are cumbersome, requiring digestion, centrifugation, and inoculation, which need to be completed step by step by multiple devices, thus increasing the processing time for a single sample. Moreover, most sputum sample inoculation operations are open operations, which can easily lead to aerosol diffusion and increase the risk of cross-contamination in the laboratory. In addition, the uneven thickness of manual coating leads to fluctuations in the culture positivity rate. To address these issues, we propose a novel automated sputum sample inoculation instrument. Utility Model Content

[0004] The purpose of this invention is to provide a novel automatic sputum sample inoculation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel automatic sputum sample inoculation device includes a housing. A partition is fixedly installed on the inner side of the housing. A motor is fixedly installed at the bottom of the partition. A support shaft is rotatably mounted above the partition. A placement tray is fixedly installed at the top of the support shaft. Multiple sets of limiting grooves are formed around the center circumference of the placement tray. Sample tubes are placed inside the limiting grooves. The bottom end of the support shaft is fixedly connected to the top output end of the motor. A first digestive fluid storage tank, a second digestive fluid storage tank, and a third digestive fluid storage tank are respectively installed on the bottom inner side of the housing. The upper inner side of the housing... An optical thickness sensor is installed on the partition. A liquid pump is fixedly installed on one side of the bottom of the partition. The liquid pump is connected to the first digestive fluid storage tank through a first connecting pipe, the liquid pump is connected to the second digestive fluid storage tank through a second connecting pipe, and the liquid pump is connected to the third digestive fluid storage tank through a third connecting pipe. A vertical pipe is fixedly connected above the liquid pump and is fixedly inserted through the surface of the partition. An injection head is fixedly installed at the end of the vertical pipe. A six-axis robotic arm is installed above the partition, and a coating head is connected to the output end of the six-axis robotic arm. A culture dish is placed above the partition.

[0006] Preferably, an electric push rod is fixedly installed on the top inner side of the housing, and a connecting frame is fixedly connected to the bottom output end of the electric push rod. Multiple ultrasonic crushing heads are evenly distributed around the center circumference of the bottom of the connecting frame.

[0007] Preferably, a first solenoid valve is installed on one side of the first connecting pipe, a second solenoid valve is installed on one side of the second connecting pipe, and a third solenoid valve is installed on one side of the third connecting pipe.

[0008] Preferably, the bottom of the placement tray is provided with a vibrator, and the top of the vibrator is fixedly connected to the bottom surface of the placement tray.

[0009] Preferably, an ultraviolet germicidal lamp is installed on the upper side surface of the box, and a PLC controller is installed on the inner bottom of the box.

[0010] Preferably, a door is provided on one side of the box, and an observation window is embedded in the surface of the door.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By incorporating a lifting ultrasonic crushing head, a centrifugal rotating placement tray, a vibrator, a multi-stage digestion liquid tank, a six-axis robotic arm, and a culture dish, the system achieves an integrated design for automated sputum sample processing, centrifugation, and inoculation, reducing manual intervention and improving the device's effectiveness. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model;

[0015] Figure 3 This is a schematic diagram of the inner side structure of the box of this utility model;

[0016] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Box body; 2. Box door; 3. Observation window; 4. Partition; 5. Placement tray; 6. Limiting groove; 7. Sample tube; 8. Support shaft; 9. Motor; 10. Vibrator; 11. Electric push rod; 12. Connecting frame; 13. Ultrasonic crushing head; 14. First digestive fluid storage tank; 15. Second digestive fluid storage tank; 16. Third digestive fluid storage tank; 17. Liquid pump; 18. First connecting pipe; 19. Second connecting pipe; 20. Third connecting pipe; 21. First solenoid valve; 22. Second solenoid valve; 23. Third solenoid valve; 24. Riser; 25. Liquid injection head; 26. Petri dish; 27. Six-axis robotic arm; 28. Coating head; 29. ​​Ultraviolet germicidal lamp; 30. PLC controller; 31. Optical thickness sensor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a novel automatic sputum sample inoculation instrument, comprising a housing 1, a partition 4 fixedly installed on the inner side of the housing 1, a motor 9 fixedly installed at the bottom of the partition 4, a support shaft 8 rotatably passing through the upper part of the partition 4, a placement tray 5 fixedly installed at the top of the support shaft 8, multiple sets of limiting grooves 6 formed around the center circumference of the placement tray 5, sample tubes 7 arranged inside the limiting grooves 6, the bottom end of the support shaft 8 fixedly connected to the top output end of the motor 9, a first digestive fluid storage tank 14, a second digestive fluid storage tank 15, and a third digestive fluid storage tank 16 respectively installed on the bottom inner side of the housing 1, and an optical thickness sensor 31 installed on the upper inner side of the housing 1. A liquid pump 17 is fixedly installed on one side of the bottom of the partition 4. The liquid pump 17 is connected to the first digestive fluid storage tank 14 through the first connecting pipe 18. The liquid pump 17 is connected to the second digestive fluid storage tank 15 through the second connecting pipe 19. The liquid pump 17 is connected to the third digestive fluid storage tank 16 through the third connecting pipe 20. A riser 24 is fixedly connected above the liquid pump 17. The riser 24 is fixedly inserted through the surface of the partition 4. An injection head 25 is fixedly installed at the end of the riser 24. A six-axis robotic arm 27 is installed above the partition 4. A coating head 28 is connected to the output end of the six-axis robotic arm 27. A petri dish 26 is placed above the partition 4.

[0020] Specifically, an electric push rod 11 is fixedly installed on the top inner side of the housing 1, and a connecting frame 12 is fixedly connected to the bottom output end of the electric push rod 11. Multiple ultrasonic crushing heads 13 are evenly distributed around the center circumference of the bottom of the connecting frame 12.

[0021] Specifically, a first solenoid valve 21 is installed on one side of the first connecting pipe 18, a second solenoid valve 22 is installed on one side of the second connecting pipe 19, and a third solenoid valve 23 is installed on one side of the third connecting pipe 20.

[0022] Specifically, a vibrator 10 is provided at the bottom of the placement tray 5, and the top of the vibrator 10 is fixedly connected to the bottom surface of the placement tray 5.

[0023] Specifically, an ultraviolet germicidal lamp 29 is installed on the upper side surface of the cabinet 1, and a PLC controller 30 is installed on the inner bottom of the cabinet 1.

[0024] Specifically, a door 2 is provided on one side of the box body 1, and an observation window 3 is embedded in the surface of the door 2.

[0025] In this embodiment, sputum samples are collected through sample tubes 7 and placed into the limiting grooves 6 on the surface of the placement tray 5. An electric push rod 11 moves the connecting frame 12 downwards, causing the ultrasonic fragmentation heads 13 at the bottom of the connecting frame 12 to be inserted into the sample tubes 7. The sputum is processed at a frequency of 20kHz to depolymerize mucin. The first connecting tube 18, second connecting tube 19, and third connecting tube 20 respectively store NALC-NaOH digestion solution, DTT solution, and phosphate buffer. The release and control of the liquid are achieved through a pump 17 and first solenoid valves 21, 22, and 23, allowing the liquid to flow through... The sample is delivered through the riser 24 and the injection head 25, and injected into the sample tube 7. The vibrator 10 drives the placement tray 5 to vibrate, inactivating non-mycobacterial pathogens. The motor 9 drives the placement tray 5 to centrifuge and rotate, causing the sputum inside the sample tube 7 to form a precipitate, which is convenient for mixing with the neutralization buffer to form a homogenized inoculation suspension. The six-axis robotic arm 27 grasps the coating head 28 and completes the zigzag trajectory coating on the surface of the culture dish 26. The coating is monitored in real time by the optical thickness sensor 31 above, and the coating pressure and walking speed are dynamically adjusted. The ultraviolet germicidal lamp 29 can sterilize the inside of the chamber 1, improving the sterile environment effect of the working.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel automated sputum sample inoculation device, comprising a housing (1), characterized in that: A partition (4) is fixedly installed on the inner side of the box (1). A motor (9) is fixedly installed at the bottom of the partition (4). A support shaft (8) is provided above the partition (4) for limiting rotation. A placement tray (5) is fixedly installed at the top of the support shaft (8). Multiple sets of limiting grooves (6) are opened around the center circumference of the placement tray (5). Sample tubes (7) are provided inside the limiting grooves (6). The bottom end of the support shaft (8) is fixedly connected to the top output end of the motor (9). A first digestive fluid storage tank (14), a second digestive fluid storage tank (15), and a third digestive fluid storage tank (16) are respectively installed on the bottom inner side of the box (1). An optical thickness sensor (31) is installed on the upper inner side of the box (1). A liquid pump is fixedly installed on one side of the bottom of the partition (4). (17) The pump (17) is connected to the first digestive fluid storage tank (14) through the first connecting pipe (18). The pump (17) is connected to the second digestive fluid storage tank (15) through the second connecting pipe (19). The pump (17) is connected to the third digestive fluid storage tank (16) through the third connecting pipe (20). A riser (24) is fixedly connected above the pump (17). The riser (24) is fixedly installed on the surface of the partition (4). An injection head (25) is fixedly installed at the end of the riser (24). A six-axis robotic arm (27) is installed above the partition (4). A coating head (28) is connected to the output end of the six-axis robotic arm (27). A petri dish (26) is set above the partition (4).

2. The novel automatic sputum sample inoculation device according to claim 1, characterized in that: An electric push rod (11) is fixedly installed on the top inner side of the housing (1). A connecting frame (12) is fixedly connected to the bottom output end of the electric push rod (11). Multiple ultrasonic breaking heads (13) are evenly distributed around the center circumference of the bottom of the connecting frame (12).

3. The novel automatic sputum sample inoculation device according to claim 1, characterized in that: A first solenoid valve (21) is installed on one side of the first connecting pipe (18), a second solenoid valve (22) is installed on one side of the second connecting pipe (19), and a third solenoid valve (23) is installed on one side of the third connecting pipe (20).

4. The novel automatic sputum sample inoculation device according to claim 1, characterized in that: The bottom of the placement tray (5) is provided with a vibrator (10), and the top of the vibrator (10) is fixedly connected to the bottom surface of the placement tray (5).

5. A novel automatic sputum sample inoculation device according to claim 1, characterized in that: An ultraviolet germicidal lamp (29) is installed on the upper side surface of the box (1), and a PLC controller (30) is installed on the inner bottom of the box (1).

6. The novel automatic sputum sample inoculation device according to claim 1, characterized in that: The box (1) has a door (2) on one side, and an observation window (3) is embedded in the surface of the door (2).