Sterile sample collecting and processing device

Abstract

The utility model discloses a sterile sample collecting and processing device, and belongs to the field of bacterial sampling, the processing device comprises a test tube and a mixing tube fixedly mounted at one end of the test tube, and a built-in liquid mixing mechanism for stretching a sampling cotton swab is arranged in the test tube; the built-in liquid mixing mechanism comprises a lifting block which is slidably mounted at the other end in the test tube and fixedly connected with one end of the sampling cotton swab, a liquid bag which extends out of the end of the test tube and is used for storing mixed liquid is in threaded connection with the lifting block, and a liquid collecting groove with a V-shaped cross section is formed in the end, facing the liquid bag, of the lifting block; a liquid discharging hole penetrating through the bottom of the lifting block and communicating with the mixing pipe is formed in the inner side wall of the liquid collecting groove, and a pricking needle facing the liquid bag is fixedly installed at the bottom in the liquid collecting groove. Compared with an existing independent placement mode, the treatment device has the advantages that the risk of sample exposure in the operation treatment process is small, so that the effect of avoiding cross infection can be effectively achieved, and the treatment device is safer and more reliable.

Description

Technical Field

[0001] This application relates to the field of bacterial sampling technology, specifically a sterile sample collection and processing device. Background Technology

[0002] Swab collection is a commonly used sample collection method, widely applied in environmental monitoring, medical diagnosis, forensic evidence collection, and paternity testing, among other fields. The correct collection method and pressure should be used depending on the collection site and sample type. For example, when collecting oral swab samples, the swab should be inserted into the inner wall of the patient's mouth and rotated along the cheek to collect sufficient sample.

[0003] After sample collection, the swab tip is typically placed into a tube containing a mixing solution for mixing, and then dropped onto a test strip for detection. However, existing processing tools usually involve storing the swab, mixing solution, and mixing tube separately. During use, the operator often needs to break off the swab tip, perform a series of procedures on the sample, and then mix the swab with the mixing solution in the mixing tube. This process involves multiple exposures, increasing the risk of cross-contamination with the external environment, and thus presents certain shortcomings.

[0004] Therefore, this application provides a sterile sample collection and processing device to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a sterile sample collection and processing device, which aims to solve the problems mentioned in the background art. The existing processing tools usually involve separate placement of cotton swabs, mixing solutions, and mixing tubes. During use, the operator usually needs to break off the cotton swab head and perform a series of operations on the sample before mixing the cotton swab with the mixing solution in the mixing tube. The operation steps involve multiple exposures, which increases the risk of exposure and is prone to cross-infection with the external environment, thus having certain shortcomings.

[0006] To achieve the above objectives, this application provides the following technical solution: a sterile sample collection and processing device, comprising a test tube and a mixing tube fixedly installed at one end of the test tube, wherein the test tube and the mixing tube are connected, a sampling swab is movably installed inside the test tube and the mixing tube, and a built-in mixing mechanism for extending and retracting the sampling swab is provided inside the test tube.

[0007] The built-in mixing mechanism includes a lifting block that is slidably installed at the other end of the test tube and fixedly connected to one end of the sampling swab. A liquid bladder for storing the mixture is screwed onto the lifting block and extends outside the end of the test tube. A liquid collection groove with a V-shaped cross-section is opened on the lifting block facing the liquid bladder. A liquid discharge hole that passes through the bottom of the lifting block and communicates with the mixing tube is opened on the inner side wall of the liquid collection groove. A needle facing the liquid bladder is fixedly installed at the bottom of the liquid collection groove. In this way, during sampling, the liquid bladder is screwed onto the lifting block, connecting it but not fully tightening it to ensure that the bladder does not contact the needle. Then, the drip head is opened, exposing the end of the mixing tube. The bladder is pushed, which in turn pushes the lifting block, which in turn pushes the sampling swab extended from the mixing tube for sampling. After sampling, the bladder is retracted, causing the lifting block to pull the sampling swab back into the mixing tube. The drip head is then covered, and the bladder is rotated a second time to tighten it. At this point, the bladder continues to move downwards and comes into contact with the needle, puncturing it and causing the mixed liquid inside to leak out and collect in the collection tank. This liquid then drips into the mixing tube through the drain hole, contacting the tip of the sampling swab inside. The mixture in the mixing tube is then mixed by shaking the test tube. The entire device is a built-in integrated design, which, compared to existing separate placement methods, reduces the risk of sample exposure during operation and processing, effectively preventing cross-infection and making it safer and more reliable.

[0008] Preferably, in order to adjust the position of the liquid bladder, a connecting part that is connected to it is fixedly installed on the liquid bladder, and the connecting part is screwed to the lifting block. This facilitates production.

[0009] Preferably, to facilitate rapid release of the mixture, a thin film is fixedly installed on the side of the connector facing the needle. This makes operation simpler and more convenient.

[0010] Preferably, to prevent the sampling swab from moving around randomly, a retaining cavity adapted to the lifting block is provided on the inner wall of the test tube. The lifting block is slidably installed in the retaining cavity, and a spring is fixedly installed at the bottom of the lifting block within the retaining cavity. This ensures that the sample is not contaminated and facilitates operation.

[0011] Preferably, for ease of sampling, the diameter of the mixing tube is smaller than the diameter of the test tube, and the length of the sampling swab is smaller than the total length of the test tube and the mixing tube. This ensures the mixture completely submerges the sampling head of the sampling swab, guaranteeing thorough mixing.

[0012] Preferably, for sealing purposes, the processing device further includes a sealing mechanism comprising a dropper screwed onto the mixing tube at the end furthest from the test tube, and a protective cover fitted onto the dropper. This ensures that the mixed liquid is extruded from the dropper hole onto the test paper, making the process safer and more stable.

[0013] This processing device involves screwing a liquid bladder onto a lifting block, ensuring the bladder is connected but not fully tightened to prevent contact with the needle. The drip head is then opened, exposing the end of the mixing tube. Pushing the bladder pushes the connected lifting block, which in turn pushes a connected sampling swab out of the mixing tube for sampling. After sampling, the bladder is retracted, causing the lifting block to pull the swab back into the mixing tube. The drip head is then covered, and the bladder is rotated a second time to tighten the connection. As the bladder continues to descend, it comes into contact with the needle, puncturing it and causing the mixed liquid inside to leak into a collection tank. This liquid then drips into the mixing tube through a drain hole, contacting the tip of the sampling swab inside. The mixture is then mixed by shaking the test tube. This integrated, built-in design significantly reduces the risk of sample exposure during processing compared to existing separate placement methods, effectively preventing cross-contamination and making the device safer and more reliable.

[0014] During sampling, the device rotates the dropper head to remove it along with the protective cover without separating them. The sampling swab is then extended into the mixing tube for sampling. After sampling, the swab is retracted into the mixing tube. The dropper head is then fixed back onto the mixing tube, and the test tube is shaken to mix the liquid. The protective cover is then removed, exposing the dropper orifice, allowing the mixed liquid to be squeezed onto the test strip from the orifice, making the process safer and more stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of a sterile sample collection and processing device.

[0016] Figure 2 This is a schematic diagram of the unfolded structure of a sterile sample collection and processing device.

[0017] Figure 3 This is a schematic diagram of the internal structure of a sterile sample collection and processing device.

[0018] Figure 4 This is a cross-sectional structural diagram of a sterile sample collection and processing device.

[0019] In the picture:

[0020] 1. Test tube; 2. Mixing tube; 3. Sampling swab; 4. Mixing mechanism; 41. Lifting block; 42. Liquid bladder; 43. Connecting part; 44. Liquid collection tank; 45. Liquid outlet; 46. Clamping cavity; 47. Spring; 48. Needle; 49. Membrane; 5. Sealing mechanism; 51. Dropper head; 52. Protective cover. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example 1

[0023] This embodiment provides a sterile sample collection and processing device, such as... Figure 1-4 As shown, the processing device includes a test tube 1 and a mixing tube 2 fixedly installed at one end of the test tube 1. The test tube 1 and the mixing tube 2 are connected. A sampling swab 3 is movably installed inside the test tube 1 and the mixing tube 2. The test tube 1 is provided with a built-in mixing mechanism 4 for extending and retracting the sampling swab 3.

[0024] The built-in mixing mechanism 4 includes a lifting block 41 that is slidably installed at the other end of the test tube 1 and fixedly connected to one end of the sampling swab 3. A liquid bladder 42 for storing the mixture is screwed onto the lifting block 41 and extends outside the end of the test tube 1. A liquid collection groove 44 with a V-shaped cross-section is opened on the lifting block 41 facing the liquid bladder 42. A liquid discharge hole 45 is opened on the inner side wall of the liquid collection groove 44, which is connected to the bottom of the lifting block 41 and the mixing tube 2. A needle 48 is fixedly installed at the bottom of the liquid collection groove 44 and facing the liquid bladder 42.

[0025] In use, screw the liquid bladder 42 onto the lifting block 41, ensuring that the liquid bladder 42 is connected to the lifting block 41 but not completely tightened, so that the liquid bladder 42 does not contact the needle 48 at this time. Then, open the drip head 51 to expose the end of the mixing tube 2, push the liquid bladder 42, which pushes the lifting block 41 connected to it. The lifting block 41 pushes the sampling swab 3 connected to it out of the mixing tube 2 for sampling. After sampling is completed, retract the liquid bladder 42, so that the lifting block 41 drives the sampling swab 3 back into the mixing tube 2. Then cover the drip head 51, and then rotate the liquid bladder 42 a second time, so that the liquid bladder 42 and the lifting block 41 are connected. When block 41 is tightened, the liquid sac 42 continues to move downward and comes into contact with the needle 48, thus puncturing the liquid sac 42. This causes the mixed liquid inside the liquid sac 42 to leak out and concentrate on the collection tank 44, and then drip into the mixing tube 2 through the liquid outlet 45. The mixed liquid then comes into contact with the swab head of the sampling swab 3 inside the mixing tube 2. The mixed liquid in the mixing tube 2 is then mixed by shaking the test tube 1. The entire device adopts a built-in integrated design, which reduces the risk of sample exposure during operation and processing compared to the existing separate placement method. This effectively avoids cross-infection and is safer and more reliable.

[0026] Specifically, a connecting part 43 is fixedly installed on the liquid bladder 42, and the connecting part 43 is screwed to the lifting block 41. In use, the liquid bladder 42 is separately set from the lifting block 41 through the connecting part 43, which facilitates the filling of the mixed liquid and the adjustment of the position of the liquid bladder 42, thus facilitating production.

[0027] More specifically, a membrane 49 is fixedly installed on the side of the connecting part 43 facing the needle 48. In use, continue to rotate the liquid bladder 42 to rotate the membrane 49 at the bottom of the liquid bladder 42 to the position of the needle 48, so that the mixture in the liquid bladder 42 can flow into the mixing tube 2 more quickly, making the operation simpler and more convenient.

[0028] It should be noted that when not in use, the initial position of the liquid sac 42 is not in contact with the needle 48. It is necessary to continue rotating in two stages to make the membrane 49 contact the needle 48.

[0029] Furthermore, a retaining cavity 46 adapted to the lifting block 41 is provided on the inner wall of the test tube 1. The lifting block 41 is slidably installed in the retaining cavity 46, and a spring 47 is fixedly installed at the bottom of the lifting block 41 in the retaining cavity 46. In use, when the lifting block 41 is pressed down, the spring 47 is compressed and contracted, and the sampling swab 3 extends out of the end of the mixing tube 2 for sampling. After sampling is completed, the liquid bladder 42 is released, the lifting block 41 loses its pushing force, and the spring 47 automatically rebounds, resetting the lifting block 41 so that the sampling swab 3 automatically retracts into the mixing tube 2. Under no external force, the sampling swab 3 will not slide arbitrarily, ensuring that the sample is not contaminated and making the operation convenient.

[0030] It should be noted that the contact surface between the lifting block 41 and the card cavity 46 is sealed to ensure that external debris will not enter the mixing tube 2 from the top of the test tube 1, thereby improving safety.

[0031] Furthermore, the diameter of the mixing tube 2 is smaller than that of the test tube 1, and the length of the sampling swab 3 is smaller than the total length of the test tube 1 and the mixing tube 2. In use, the thinner mixing tube 2 facilitates the insertion of the sampling swab 3 into narrower areas such as the mouth for sampling. Moreover, after the mixed solution enters the mixing tube 2, the liquid level inside the mixing tube 2 rises due to the reduced diameter, ensuring that the mixed solution completely submerges the sampling head of the sampling swab 3, thus ensuring thorough mixing.

[0032] Example 2

[0033] Unlike Example 1, when mixing liquids, the head of the mixing tube 2 needs to be sealed. For this purpose, the processing device also includes a sealing mechanism 5, which includes a drip head 51 screwed onto the mixing tube 2 at the end away from the test tube 1. A protective cover 52 is fitted on the drip head 51.

[0034] During use, when sampling, rotate the dropper head 51 to remove the dropper head 51 and the protective cover 52 together without separating them. Then, extend the sampling swab 3 out of the mixing tube 2 to collect the sample. After sampling, retract the sampling swab 3 into the mixing tube 2, then fix the dropper head 51 back onto the mixing tube 2. Shake the test tube 1 to mix the liquid, then remove the protective cover 52 to expose the dropper orifice of the dropper head 51, thereby squeezing the mixed liquid from the dropper orifice onto the test paper, which is safer and more stable.

[0035] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A sterile sample collection processing device, comprising a test tube (1) and a mixing tube (2) fixedly installed at one end of the test tube (1), the test tube (1) and the mixing tube (2) being in communication, a sampling cotton swab (3) being movably installed in the test tube (1) and the mixing tube (2), and an internal mixing mechanism (4) being arranged in the test tube (1) for retracting the sampling cotton swab (3), characterized in that: the internal mixing mechanism (4) comprises a lifting block (41) slidably installed at the other end of the test tube (1) and fixedly connected with one end of the sampling cotton swab (3), a liquid bag (42) for storing a mixing liquid being screwed on the lifting block (41) and extending outside the end of the test tube (1), a liquid collecting groove (44) being formed in the lifting block (41) and facing one end of the liquid bag (42), the liquid collecting groove (44) being in the shape of V in cross section, a lower liquid hole (45) being formed in the inner side wall of the liquid collecting groove (44) and penetrating through the bottom of the lifting block (41) and being in communication with the mixing tube (2), and a lancet (48) being fixedly installed at the bottom of the liquid collecting groove (44) and facing the liquid bag (42). A connecting portion (43) is fixedly installed on the liquid bag (42) and in communication, the connecting portion (43) being screwed on the lifting block (41).

2. A sterile sample collection and processing device according to claim 1, wherein: A film (49) is fixedly installed on one side of the connecting portion (43) and facing the lancet (48).

3. A sterile sample collection and processing device according to claim 2, wherein: A clamping cavity (46) is formed in the inner side wall of the test tube (1) and matched with the lifting block (41), the lifting block (41) being slidably installed in the clamping cavity (46), and a spring (47) being fixedly installed at the bottom of the lifting block (41) in the clamping cavity (46).

4. A sterile sample collection and processing device according to claim 1, wherein: The diameter of the mixing tube (2) is smaller than that of the test tube (1), and the length of the sampling cotton swab (3) is smaller than the total length of the test tube (1) and the mixing tube (2).

5. A sterile sample collection and processing device according to claim 1, wherein: The processing device further comprises a sealing mechanism (5), the sealing mechanism (5) comprising a droplet head (51) screwed on the mixing tube (2) and away from the end of the test tube (1), and a protective cover (52) being sleeved on the droplet head (51).

6. A sterile sample collection and processing device according to claim 1, wherein: ​

Images