Portable DNA sample collector for clinical laboratory

Abstract

The utility model discloses a kind of portable clinical laboratory DNA specimen collectors, belong to DNA specimen collection technical field, this one kind portable clinical laboratory DNA specimen collector, including collection mechanism, collection mechanism includes collection subassembly, collection subassembly includes outer tube and inner tube, piston is slidably sleeved between outer tube and inner tube, the inner wall of outer tube and the outer wall of inner tube are respectively sealed sliding with the two sides of piston;External auxiliary mechanism, external auxiliary mechanism includes limit transmission assembly and sealed input component, limit transmission assembly is arranged at the top of outer tube and is connected with piston transmission, sealed input component is arranged at the bottom of outer tube and is arranged in sealed communication with inner tube, by the sealed sliding of piston between outer tube and inner tube in collection subassembly, the change of inner space in inner tube can be accurately controlled, to accurately control specimen collection amount, meet the strict requirement of different detection project to specimen amount.

Description

Technical Field

[0001] This utility model relates to the field of DNA specimen collection, and more specifically, to a convenient DNA specimen collector for laboratory use. Background Technology

[0002] The DNA specimen collection in the laboratory can be used for disease diagnosis, disease prognosis assessment, medication guidance, kinship identification, and disease prevention and health management.

[0003] Traditional DNA specimen collection methods in laboratory medicine present numerous inconveniences. Existing collection instruments are often simple in structure, making it difficult to accurately control the collection volume during operation. Furthermore, their poor sealing hinders proper specimen collection and retrieval, easily leading to specimen contamination and affecting the accuracy of test results. Simultaneously, the lack of effective auxiliary devices in specimen transfer and preservation increases the risk of specimen leakage and spoilage. Therefore, inventing a convenient DNA specimen collection device for laboratory medicine to address these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a convenient DNA specimen collector for laboratory use, aiming to improve the existing collectors which have simple structures, are difficult to accurately control the collection volume during operation, lack effective auxiliary devices in specimen transfer and preservation, and are also relatively cumbersome to remove specimens.

[0005] This invention is achieved as follows: a convenient DNA specimen collection device for laboratory use, comprising...

[0006] A data collection mechanism, comprising a data collection component, the data collection component comprising an outer cylinder and an inner cylinder, a piston being slidably connected between the outer cylinder and the inner cylinder, the two sides of the piston being respectively sealed and sliding against the inner wall of the outer cylinder and the outer wall of the inner cylinder;

[0007] An external auxiliary mechanism is provided, comprising a limiting transmission assembly and a sealing input assembly. The limiting transmission assembly is disposed at the top of the outer cylinder and is connected to the piston via a transmission. The sealing input assembly is disposed at the bottom of the outer cylinder and is connected to the inner cylinder in a sealed manner.

[0008] In a preferred embodiment of this utility model, the bottom seal of the inner cylinder extends through the inner bottom of the outer cylinder, and sealing rings are respectively embedded in the outer wall and inner wall of the piston, and the sealing rings slide in a sealing manner with the inner wall of the outer cylinder and the outer wall of the inner cylinder.

[0009] In a preferred embodiment of this utility model, the top of the inner cylinder is 0.5-2 cm away from the inner top of the outer cylinder, and a microporous membrane is fixedly provided on the top of the inner cylinder.

[0010] In a preferred embodiment of this utility model, a connecting rod is fixedly connected to the top of the piston, and multiple connecting rods are equally distributed on the top of the piston. The multiple connecting rods slide through the top of the outer cylinder in a sealed manner, and a transmission plate is provided on the top of the multiple connecting rods. The transmission plate is fixedly connected to the multiple connecting rods.

[0011] In a preferred embodiment of this utility model, the limiting transmission assembly includes a limiting ring plate, which is rotatably sleeved on the top of the transmission plate. Limiting blocks are evenly installed on the inner wall of the limiting ring plate, and a slot is provided on the top outer wall of the outer cylinder. The limiting blocks are correspondingly engaged with the slot.

[0012] In a preferred embodiment of this utility model, the limiting transmission assembly further includes a support base, a locking block is fixedly connected to the bottom of the support base, the locking block is limited and engaged with the top of the limiting ring plate, and a handle is fixedly connected to the top of the support base.

[0013] In a preferred embodiment of this utility model, a spring is provided inside the outer cylinder, the spring is sleeved on the outer wall of the inner cylinder, and the spring is located between the inner bottom of the outer cylinder and the piston.

[0014] In a preferred embodiment of this utility model, a sealing input assembly is provided, comprising a sealing plate, a sealing plug fixedly connected to the top of the sealing plate, a first sealing ring being embedded in the outer wall of the sealing plug, and the sealing plug and the first sealing ring being sealed and inserted into the inner bottom of the inner cylinder.

[0015] In a preferred embodiment of this utility model, the sealing input assembly further includes a mounting plate, an input cylinder is connected to the top of the mounting plate, a second sealing ring is embedded in the outer wall of the input cylinder, the input cylinder and the second sealing ring are sealed and inserted into the inner bottom of the inner cylinder, and a suction nozzle is connected to the bottom of the mounting plate.

[0016] In a preferred embodiment of this utility model, a first limiting card is fixedly connected to both ends of the sealing plate, a second limiting card is fixedly connected to both ends of the mounting plate, a limiting plate is fixedly sleeved on the bottom outer wall of the inner cylinder, and the first limiting card and the second limiting card are correspondingly engaged with the limiting plate.

[0017] The beneficial effects of this utility model are as follows: The convenient DNA specimen collector for laboratory departments obtained by the above design can precisely control the change of space in the inner cylinder by sliding the piston in the collection component between the outer and inner cylinders, thereby accurately controlling the specimen collection volume and meeting the strict requirements of different testing items for specimen volume.

[0018] The piston slides in a sealed manner against the inner wall of the outer cylinder and the outer wall of the inner cylinder on both sides, and the sealing ring, first sealing ring, second sealing ring and other components further enhance the sealing performance, effectively preventing the specimen from being contaminated by the outside world during collection, transfer and preservation, and ensuring the reliability of the test results.

[0019] The limiting ring plate, limiting block, and slot structure design in the limiting transmission assembly make the piston movement more stable and easier to control during operation; the handle makes it easier for operators to apply force; the sealing plate, sealing plug, input cylinder, and suction nozzle of the sealing input assembly facilitate the input and transfer of specimens, improving the efficiency and convenience of the collection work.

[0020] The microporous membrane at the top of the inner cylinder allows gas to pass through, balancing the internal and external pressures and preventing pressure changes from affecting the specimen. Simultaneously, it blocks external impurities from entering, which is beneficial for specimen preservation. The spring assists in piston reset, ensuring the collector quickly returns to its initial state for easy reuse. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of one side of the structure provided by an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of another side of the structure provided for an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the internal structure provided for an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the disassembled structure provided for an embodiment of this utility model.

[0026] In the diagram: 100-Collection mechanism; 110-Collection component; 111-Outer cylinder; 112-Inner cylinder; 113-Limiting plate; 114-Piston; 115-Sealing ring; 116-Connecting rod; 117-Transmission plate; 118-Microporous membrane; 200-External auxiliary mechanism; 210-Limiting transmission component; 211-Limiting ring plate; 212-Limiting block; 213-Support base; 214-Card block; 215-Handle; 216-Card slot; 217-Spring; 220-Sealing input component; 221-Sealing plate; 222-First limit card; 223-Sealing plug; 224-First sealing ring; 225-Input cylinder; 226-Second sealing ring; 227-Nose; 228-Mounting plate; 229-Second limit card. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a convenient DNA specimen collection device for laboratory use, including...

[0029] The collection mechanism 100 includes a collection component 110, which includes an outer cylinder 111 and an inner cylinder 112. A piston 114 is slidably connected between the outer cylinder 111 and the inner cylinder 112. The two sides of the piston 114 are respectively sealed and slidably connected to the inner wall of the outer cylinder 111 and the outer wall of the inner cylinder 112. An external auxiliary mechanism 200 includes a limiting transmission component 210 and a sealing input component 220. The limiting transmission component 210 is located at the top of the outer cylinder 111 and is connected to the piston 114 in a transmission manner. The sealing input component 220 is located at the bottom of the outer cylinder 111 and is sealed and connected to the inner cylinder 112. By the sealed sliding of the piston 114 in the collection component 110 between the outer cylinder 111 and the inner cylinder 112, the change of space in the inner cylinder 112 can be precisely controlled, thereby accurately controlling the sample collection volume and meeting the strict requirements of different testing items for sample volume.

[0030] Please see Figure 3 and Figure 4The bottom seal of the inner cylinder 112 extends through the inner bottom of the outer cylinder 111. Sealing rings 115 are embedded in the outer and inner walls of the piston 114, respectively. The sealing rings 115 slide in a sealing manner against the inner wall of the outer cylinder 111 and the outer wall of the inner cylinder 112. The top of the inner cylinder 112 is 0.5-2 cm from the inner top of the outer cylinder 111, and a microporous membrane 118 is fixedly installed on the top of the inner cylinder 112.

[0031] The microporous membrane 118 can be made of PTFE microporous membrane. PTFE microporous membrane has good flexibility and air permeability. Under normal use, it will not affect the air intake and exhaust while preventing leakage of liquids. At the same time, the microporous membrane 118 can be replaced with other better materials as needed.

[0032] A connecting rod 116 is fixedly connected to the top of the piston 114. Multiple connecting rods 116 are evenly distributed on the top of the piston 114. Multiple connecting rods 116 slide through the top of the outer cylinder 111 in a sealed manner. A transmission plate 117 is provided on the top of the multiple connecting rods 116. The transmission plate 117 is fixedly connected to the multiple connecting rods 116.

[0033] The limiting transmission assembly 210 includes a limiting ring plate 211, which is rotatably sleeved on the top of the transmission plate 117. Limiting blocks 212 are evenly installed on the inner wall of the limiting ring plate 211. A slot 216 is formed on the top outer wall of the outer cylinder 111, and the limiting blocks 212 are correspondingly engaged with the slot 216. The engagement of the limiting ring plate 211 with the limiting blocks 212 and the slot 216 is used to fix the position of the piston 114 and prevent arbitrary displacement. The limiting transmission assembly 210 also includes a support base 213. A locking block 214 is fixedly connected to the bottom of the support base 213, and the locking block 214 is engaged with the top of the limiting ring plate 211. A handle 215 is fixedly connected to the top of the support base 213. The locking block 214 can be a strong magnet or other limiting structure for convenient and quick disassembly and installation. A spring 217 is installed inside the outer cylinder 111. The spring 217 is sleeved on the outer wall of the inner cylinder 112. The spring 217 is located between the inner bottom of the outer cylinder 111 and the piston 114. The spring 217 can be set as needed. The spring 217 can assist the piston 114 in rising.

[0034] The sealing input assembly 220 includes a sealing plate 221. A sealing plug 223 is fixedly connected to the top of the sealing plate 221. A first sealing ring 224 is embedded in the outer wall of the sealing plug 223. The sealing plug 223 and the first sealing ring 224 are inserted into the inner bottom of the inner cylinder 112. The length of the sealing plug 223 can be set as needed to cooperate with the first sealing ring 224 to seal the bottom of the inner cylinder 112.

[0035] The sealing input assembly 220 also includes a mounting plate 228. An input cylinder 225 is connected to the top of the mounting plate 228. A second sealing ring 226 is embedded in the outer wall of the input cylinder 225. The input cylinder 225 and the second sealing ring 226 are sealed and inserted into the inner bottom of the inner cylinder 112. A suction nozzle 227 is connected to the bottom of the mounting plate 228. The suction nozzle 227 facilitates the suction of the specimen sample.

[0036] The two ends of the sealing plate 221 are respectively fixedly connected to the first limiting card 222, and the two ends of the mounting plate 228 are respectively fixedly connected to the second limiting card 229. The bottom outer wall of the inner cylinder 112 is fixedly sleeved with the limiting plate 113. The first limiting card 222 and the second limiting card 229 are correspondingly engaged with the limiting plate 113. The first limiting card 222 and the second limiting card 229 are first placed perpendicularly to the limiting plate 113, and then the first limiting card 222 and the second limiting card 229 are rotated to engage with the limiting plate 113.

[0037] Working principle: When not in use, the spring 217 is in a compressed state, while the limiting block 212 in the limiting ring plate 211 is locked with the slot 216, and the bottom of the inner cylinder 112 is sealed with the sealing plug 223. The first limiting card 222 is locked with the limiting plate 113 to protect the inside of the inner cylinder 112 from contamination.

[0038] In use, connect the locking block 214 to the limiting ring plate 211 (at this time, remove the sealing plug 223). Simultaneously rotate the handle 215 to release the locking block 212 from the locking groove 216. At this time, the spring 217 will push the piston 114 upward (at the same time, the handle 215 and the connecting rod 116 will pull the piston 114 upward). Install the input cylinder 225 and lock it to the limiting plate 113 through the second limiting card 229. Then, align the suction nozzle 227 with the object to be collected. Press the handle 215 to lower the connecting rod 116 and piston 114. When the piston 114 lowers, the air inside the inner cylinder 112 will move into the outer cylinder 111. At this time, the suction nozzle 227 will suck the specimen into the inner cylinder 112. After sucking in an appropriate amount, it will leave the specimen. At the same time, press the piston 114 to the bottom so that the limiting block 212 engages with the slot 216. Remove the handle 215 and suction nozzle 227, etc., and install the sealing plug 223 at the bottom of the inner cylinder 112 to complete the collection.

[0039] When the specimen needs to be removed, the limiting ring plate 211 is released (the sealing plug 223 is removed in advance), and the spring 217 will push the piston 114 to rise, allowing the air to be expelled and the specimen to be pushed out.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable DNA specimen collection device for laboratory use, characterized in that, include A data collection mechanism, comprising a data collection component, the data collection component comprising an outer cylinder and an inner cylinder, a piston being slidably sleeved between the outer cylinder and the inner cylinder, the two sides of the piston being respectively sealed and sliding against the inner wall of the outer cylinder and the outer wall of the inner cylinder; An external auxiliary mechanism is provided, comprising a limiting transmission assembly and a sealing input assembly. The limiting transmission assembly is disposed at the top of the outer cylinder and is connected to the piston via a transmission. The sealing input assembly is disposed at the bottom of the outer cylinder and is connected to the inner cylinder in a sealed manner.

2. The portable DNA specimen collection device for clinical laboratories as described in claim 1, characterized in that: The bottom seal of the inner cylinder extends through the bottom of the outer cylinder. Sealing rings are embedded in the outer and inner walls of the piston, and the sealing rings slide in a sealing manner with the inner wall of the outer cylinder and the outer wall of the inner cylinder.

3. A portable DNA specimen collection device for clinical laboratories as described in claim 2, characterized in that: The top of the inner cylinder is 0.5-2 cm away from the inner top of the outer cylinder, and a microporous membrane is fixedly provided on the top of the inner cylinder.

4. A portable DNA specimen collection device for clinical laboratories as described in claim 3, characterized in that: A connecting rod is fixedly connected to the top of the piston. Multiple connecting rods are evenly distributed on the top of the piston. The multiple connecting rods slide through the top of the outer cylinder in a sealed manner. A transmission plate is provided on the top of the multiple connecting rods. The transmission plate is fixedly connected to the multiple connecting rods.

5. A portable DNA specimen collection device for clinical laboratories as described in claim 4, characterized in that: The limiting transmission assembly includes a limiting ring plate, which is rotatably sleeved on the top of the transmission plate. Limiting blocks are evenly installed on the inner wall of the limiting ring plate. A slot is provided on the top outer wall of the outer cylinder, and the limiting blocks are engaged with the slots.

6. A portable DNA specimen collection device for clinical laboratories as described in claim 5, characterized in that: The limiting transmission assembly also includes a support base, a locking block is fixedly connected to the bottom of the support base, the locking block is locked to the top of the limiting ring plate, and a handle is fixedly connected to the top of the support base.

7. A portable DNA specimen collection device for clinical laboratories as described in claim 5, characterized in that: A spring is installed inside the outer cylinder, and the spring is sleeved on the outer wall of the inner cylinder. The spring is located between the inner bottom of the outer cylinder and the piston.

8. A portable DNA specimen collection device for clinical laboratories as described in claim 5, characterized in that: A sealing input assembly includes a sealing plate, a sealing plug fixedly connected to the top of the sealing plate, a first sealing ring embedded in the outer wall of the sealing plug, and the sealing plug and the first sealing ring being sealed and inserted into the inner bottom of the inner cylinder.

9. A portable DNA specimen collection device for clinical laboratories as described in claim 8, characterized in that: The sealing input assembly also includes a mounting plate, the top of which is connected to an input cylinder, the outer wall of which is embedded with a second sealing ring, the input cylinder and the second sealing ring being sealed and inserted into the inner bottom of the inner cylinder, and the bottom of which is connected to a suction nozzle.

10. A portable DNA specimen collection device for clinical laboratories as described in claim 9, characterized in that: The sealing plate is fixedly connected to two ends with a first limiting card, the mounting plate is fixedly connected to two ends with a second limiting card, and the bottom outer wall of the inner cylinder is fixedly sleeved with a limiting plate. The first limiting card and the second limiting card are correspondingly engaged with the limiting plate.

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