Sampling ball type bacteria sampling device
By combining a vacuum generator and a sampling assembly, bacterial colonies are collected directly from the surface of a petri dish using a suction cup to adsorb a sampling ball. This solves the problem of dilution with sterile cotton swabs, maintains the concentration and purity of bacterial colonies, and ensures the accuracy of test results.
Patent Information
- Application Number
- CN202422868980.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing sterile swab sampling methods tend to dilute bacterial colony samples, leading to reduced concentration and purity, which affects test results.
A vacuum generator and sampling components are used to sample bacterial colonies by adsorbing sampling balls with a suction cup, avoiding contact with physiological saline, and directly adsorbing and collecting colonies from the surface of the petri dish.
Maintaining the concentration and purity of bacterial colonies is crucial to ensuring the accuracy of subsequent test results.
Smart Images
Figure CN223496467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microbiological device technology, and in particular to a sampling ball-type bacterial sampling device. Background Technology
[0002] Microbiological testing requires colony sampling. The main purpose of colony sampling is to select bacterial colonies with specific characteristics or functions from a complex mixture of microorganisms for testing.
[0003] Currently, most bacterial colony sampling methods involve laboratory personnel manually sampling colonies from petri dishes using sterile cotton swabs. When using sterile cotton swabs, they are first immersed in sterile saline solution, and then the surface of the colonies is gently wiped to collect bacterial colony samples. However, since sterile cotton swabs are usually made of fibrous materials and have a certain degree of water absorption, the swabs may absorb too much saline solution during the sampling process, thereby diluting the bacterial colony sample, reducing the concentration and purity of the sample, and thus affecting the subsequent test results. Utility Model Content
[0004] The purpose of this invention is to provide a sampling ball-type bacterial sampling device that can sample bacterial colonies, avoid reducing the concentration and purity of bacterial colony samples, and prevent affecting subsequent test results.
[0005] To achieve the above objectives, this utility model provides a sampling ball-type bacterial sampling device, including a vacuum generator and a sampling assembly. The sampling assembly includes a connecting tube, a hollow pen, a suction cup, a sampling ball, two receiving parts, two docking parts, and a mounting plate.
[0006] The connecting tube is fixedly connected to and communicates with the vacuum generator, and is located on the side of the vacuum generator; the hollow pen is fixedly connected to the connecting tube, and is located at the end of the connecting tube away from the vacuum generator; the hollow pen has an air hole, and the air hole communicates with the connecting tube; the suction cup is fixedly connected to the hollow pen, communicates with the air hole, and is located on the side of the hollow pen; the sampling ball is located on the side of the suction cup; the two receiving components are mirror images of each other on both sides of the hollow pen, and the two receiving components are respectively located on the sides of the two docking components; the mounting plate is located on the sides of the two docking components.
[0007] The receiving component includes a card holder and a plug rod; the card holder is fixedly connected to the hollow pen and is located on the side of the hollow pen; the plug rod is slidably connected to the card holder and is located on the side of the card holder.
[0008] The receiving component further includes a first spring and a connecting block; the first spring is fixedly connected to the card seat and is located on the side of the card seat; the connecting block is fixedly connected to the first spring and to the insertion rod, and is located at the end of the first spring away from the card seat.
[0009] The docking component includes a slider and a docking rod; the slider is slidably connected to the mounting plate and is located inside the mounting plate; the docking rod is fixedly connected to the slider and is located on the side of the slider, and the docking rod has a socket.
[0010] The docking component further includes a second spring; the second spring is fixedly connected to the mounting plate and to the slider, and is located between the mounting plate and the slider.
[0011] This invention discloses a sampling ball-type bacterial sampling device. When sampling bacterial colonies, multiple sterile sampling balls are pre-placed in a storage container. The sampling balls can be made of any material such as steel, glass, ceramic, or plastic. An operator holds a hollow pen and places the suction cup above the sampling ball. A vacuum generator is then activated to create a negative pressure between the vent and the inside of the suction cup, adsorbing the sampling ball onto the suction cup. The operator then moves the sampling ball to contact the surface of bacterial colonies in a petri dish, allowing the colonies to adhere to the surface. The sampling ball with the colony sample attached is then transferred to a sampling container. Finally, the vacuum generator is deactivated, and the sampling ball falls into the sampling container, thus completing the bacterial colony sampling. The colonies sampled from the sampling ball can then be further studied, analyzed, and applied. This bacterial colony sampling method, unlike sterile cotton swab sampling, does not require immersion in sterile saline solution, thus avoiding a decrease in the concentration and purity of the bacterial colony sample and preventing any impact on subsequent test results. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a structural schematic diagram of the entire utility model from another perspective.
[0015] Figure 3 This is a front sectional view of the entire utility model.
[0016] Figure 4 This is a side sectional view of the entire utility model.
[0017] 101-Vacuum generator, 102-Connecting tube, 103-Hollow pen, 104-Suction cup, 105-Sampling ball, 106-Receiving component, 107-Dating component, 108-Mounting plate, 109-Air hole, 110-Card holder, 111-First spring, 112-Connecting block, 113-Insertion rod, 114-Slider, 115-Dating rod, 116-Insertion hole, 117-Second spring. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a structural schematic diagram of the entire utility model from another perspective. Figure 3 This is a front sectional view of the entire utility model. Figure 4 This is a side sectional view of the entire utility model.
[0020] This utility model provides a sampling ball-type bacterial sampling device, including a vacuum generator 101 and a sampling assembly. The sampling assembly includes a connecting tube 102, a hollow pen 103, a suction cup 104, a sampling ball 105, two receiving components 106, two docking components 107, and a mounting plate 108. The receiving component 106 includes a retainer 110, a first spring 111, a connecting block 112, and an insertion rod 113. The docking component 107 includes a slider 114, a docking rod 115, and a second spring 117. The aforementioned solution enables the sampling of bacterial colonies, avoiding a decrease in the concentration and purity of the bacterial colony sample and preventing any impact on subsequent test results.
[0021] In this specific embodiment, the connecting pipe 102 is fixedly connected to and communicates with the vacuum generator 101, and is located on the side of the vacuum generator 101; the hollow pen 103 is fixedly connected to the connecting pipe 102, and is located at the end of the connecting pipe 102 away from the vacuum generator 101; the hollow pen 103 has an air hole 109, which communicates with the connecting pipe 102; the suction cup 104 is fixedly connected to the hollow pen 103, communicates with the air hole 109, and is located on the side of the hollow pen 103; the sampling ball 105 is located on the side of the suction cup 104; the two receiving components 106 are mirror images of each other on both sides of the hollow pen 103, and the two receiving components 106 are respectively located on the sides of the two docking components 107; the mounting plate 108 is located on the sides of the two docking components 107. When sampling bacterial colonies, multiple sterile sampling balls 105 are placed in a storage container beforehand. The material of the sampling balls 105 can be any of steel, glass, ceramic, plastic, etc. The operator holds the hollow pen 103, places the suction cup 104 above the sampling balls 105, and then controls the vacuum generator 101 to create a vacuum, forming a negative pressure inside the vent 109 and the suction cup 104, adsorbing the sampling balls 105 onto the suction cup 104. The operator then moves the sampling balls 105 to contact the surface of the bacterial colonies in the petri dish, allowing the colonies to adhere to the surface of the sampling balls 105. The sampling balls 105 with the attached colony sample are then transferred to the sampling container. Finally, the vacuum generator 101 is deactivated, and the sampling... The sample ball 105 falls into the sampling container, thus completing the sampling of bacterial colonies. The colonies sampled on the sampling ball 105 can then be further studied, analyzed, and applied. In addition to the manual sampling method described above, the mounting plate 108 can be installed on an existing robotic arm using bolts or welding. The robotic arm can be a multi-degree-of-freedom type depending on actual needs. The receiving component 106 and the docking component 107 are then connected, allowing the hollow pen 103 to be mounted on the robotic arm. The robotic arm is then controlled to move the hollow pen 103 for bacterial colony sampling. The bacterial colony sampling method of this application, because it does not require immersion in sterile saline solution as with sterile cotton swab sampling, avoids reducing the concentration and purity of the bacterial colony sample, preventing any impact on subsequent test results.
[0022] The card holder 110 is fixedly connected to the hollow pen 103 and is located on the side of the hollow pen 103; the insertion rod 113 is slidably connected to the card holder 110 and is located on the side of the card holder 110. Pulling the insertion rod 113 away from the card holder 110, then placing the docking component 107 into the card holder 110, and inserting the insertion rod 113 into the docking component 107, thereby connecting the card holder 110 and the docking component 107.
[0023] Secondly, the first spring 111 is fixedly connected to the card holder 110 and is located on the side of the card holder 110; the connecting block 112 is fixedly connected to the first spring 111 and to the insertion rod 113, and is located at the end of the first spring 111 away from the card holder 110. Pulling the connecting block 112 causes the insertion rod 113 to move away from the card holder 110, at which point the first spring 111 is stretched, and then the docking component 107 is placed into the card holder 110. Subsequently, the connecting block 112 is released, and the insertion rod 113 is inserted into the docking component 107 under the action of the first spring 111, thereby connecting the card holder 110 and the docking component 107.
[0024] Meanwhile, the slider 114 is slidably connected to the mounting plate 108 and is located inside the mounting plate 108; the docking rod 115 is fixedly connected to the slider 114 and is located on the side of the slider 114, and the docking rod 115 has a socket 116. The socket 116 is adapted to the plug rod 113. By sliding the slider 114 to insert the docking rod 115 into the card holder 110, and then inserting the plug rod 113 into the socket 116, the docking rod 115 can be fixed in the card holder 110.
[0025] Additionally, the second spring 117 is fixedly connected to the mounting plate 108 and the slider 114, and is located between the mounting plate 108 and the slider 114. The mounting plate 108 is pre-installed on the robotic arm using bolts or welding. The robotic arm can be a multi-degree-of-freedom robotic arm from existing products, selected according to actual needs. Then, the two docking rods 115 are pulled away from each other. The docking rods 115 drive the slider 114 to move, compressing the second spring 117. Subsequently, the insertion rod 113 is pulled away from the holder 110. At this time, the first spring 111 is stretched. After placing the docking rod 115 on the side of the holder 110, the docking rod 115 is released. The docking rod 115 is inserted into the holder 110 under the push of the second spring 117. Then, the insertion rod 113 is released again. The insertion rod 113 is inserted into the insertion hole 116 under the action of the first spring 111, thereby fixing the docking rod 115 in the card holder 110. This allows the hollow pen 103 to be mounted on the robotic arm. The robotic arm can be controlled by a designed control program to make the hollow pen 103 move to sample bacterial colonies. When it is necessary to manually pick up the hollow pen 103 for sampling, the insertion rod 113 can be removed from the insertion hole 116, and the docking rod 115 can be removed from the card holder 110 to remove the hollow pen 103 from the robotic arm. Then, the operator can pick up the hollow pen 103 to manually sample bacterial colonies.
[0026] When using this invention to sample bacterial colonies, multiple sterile sampling balls 105 are placed in a storage container beforehand. The material of the sampling balls 105 can be any of steel, glass, ceramic, plastic, etc. The operator holds the hollow pen 103, places the suction cup 104 above the sampling balls 105, and then controls the vacuum generator 101 to create a vacuum, forming a negative pressure inside the air vent 109 and the suction cup 104, adsorbing the sampling balls 105 onto the suction cup 104. The operator then collects the samples... The sample ball 105 is moved to contact the surface of bacterial colonies in the petri dish, allowing the colonies to adhere to the surface of the sample ball 105. Then, the sample ball 105 with the colony sample attached is moved to the sampling container. Finally, the vacuum generator 101 is controlled to release the vacuum, and the sample ball 105 falls into the sampling container, thus completing the bacterial colony sampling. The bacterial colony sampling method of this application does not require immersion in sterile physiological saline as in sterile cotton swab sampling, thus avoiding a decrease in the concentration and purity of the bacterial colony sample and preventing it from affecting the subsequent test results.
[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A sampling ball-type bacterial sampling device, comprising a vacuum generator, characterized in that, It also includes a sampling component; The sampling assembly includes a connecting tube, a hollow pen, a suction cup, a sampling ball, two receiving parts, two docking parts, and a mounting plate; The connecting tube is fixedly connected to and communicates with the vacuum generator, and is located on the side of the vacuum generator; the hollow pen is fixedly connected to the connecting tube, and is located at the end of the connecting tube away from the vacuum generator; the hollow pen has an air hole, and the air hole communicates with the connecting tube; the suction cup is fixedly connected to the hollow pen, communicates with the air hole, and is located on the side of the hollow pen; the sampling ball is located on the side of the suction cup. The two receiving components are mirror images of each other on both sides of the hollow pen, and the two receiving components are respectively disposed on the sides of the two docking components, and the mounting plate is disposed on the sides of the two docking components.
2. The sampling ball-type bacterial sampling device as described in claim 1, characterized in that, The receiving component includes a card holder and a plug rod; the card holder is fixedly connected to the hollow pen and is located on the side of the hollow pen; the plug rod is slidably connected to the card holder and is located on the side of the card holder.
3. The sampling ball-type bacterial sampling device as described in claim 2, characterized in that, The receiving component further includes a first spring and a connecting block; the first spring is fixedly connected to the card holder and is located on the side of the card holder; the connecting block is fixedly connected to the first spring and to the insertion rod, and is located at the end of the first spring away from the card holder.
4. The sampling ball-type bacterial sampling device as described in claim 3, characterized in that, The docking component includes a slider and a docking rod; the slider is slidably connected to the mounting plate and is located inside the mounting plate; the docking rod is fixedly connected to the slider and is located on the side of the slider, and the docking rod has a socket.
5. The sampling ball-type bacterial sampling device as described in claim 4, characterized in that, The docking component also includes a second spring; the second spring is fixedly connected to the mounting plate and to the slider, and is located between the mounting plate and the slider.