A blood sampling device for tumors that prevents contamination

Abstract

This invention provides a blood sampling device for tumors that prevents contamination, belonging to the field of medical device technology. It includes a limiting plate, which is rotatably connected to a storage component. The storage component includes multiple placement compartments, each containing a blood collection tube. A first connector is installed within the limiting plate, connecting to a connecting component. The connecting component includes a second connector, and sealing components are installed within the first and second connectors. The blood collection tubes, the first connector, and the second connector are interconnected. This device reduces the need for frequent needle insertion and tube replacement, lowering the risk of contamination. The blood collection tubes are connected to the connectors via a rotating placement compartment, improving operational efficiency, simplifying the process, and reducing human error.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a blood sampling device for tumors that prevents blood contamination. Background Technology

[0002] Hematologic malignancy sampling, as a non-invasive technique, holds significant potential for early cancer detection and treatment monitoring. Therefore, designing a contamination-resistant hematologic malignancy sampling device is crucial. Future research will advance this technology, promote its widespread application, and improve the level of early cancer diagnosis and personalized treatment.

[0003] A search revealed an existing patent (publication number: CN211658212U) that discloses a blood sampling device for tumors. This device has the advantage of using an inflatable, locking bladder to contact and compress the sampling needle, thereby limiting and fixing it in a suitable position, preventing the needle from slipping and changing its position, and ensuring sampling accuracy.

[0004] However, in actual blood collection, if multiple tubes of blood need to be collected, the sampling needle needs to be removed and the blood collection tube replaced before being reinserted into the patient's vein for collection. This may prolong the sampling time, increase the complexity of the operation, and adversely affect the sample quality. Each operation may introduce external contaminants, leading to the degradation of tumor markers in the blood and reducing the accuracy of the test. At the same time, repeated needle pricks may increase the patient's discomfort and affect their cooperation, thereby affecting the representativeness of the sample and the diagnostic results. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that when collecting multiple tubes of blood in the prior art, it is necessary to remove the sampling needle and replace the blood collection tube, which may prolong the sampling time, increase the complexity of operation, and have an adverse effect on the sample quality. Therefore, this invention proposes a blood sampling device for tumors that prevents contamination.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A blood sampling device for tumors that prevents contamination, further comprising: a limiting plate rotatably connected to a storage component, the storage component including multiple placement compartments, blood collection tubes inserted in the limiting compartments, a first connector installed in the limiting plate, the first connector being connected to a connecting component, the connecting component including a second connector, a sealing component installed in the first connector and the second connector, and the blood collection tubes, the first connector, and the second connector being interconnected.

[0007] Optionally, the storage assembly includes a placement compartment fixed to the side of the turntable away from the limiting plate, multiple connecting pins fixed to the outer wall of the turntable away from the limiting plate, and evenly distributed installation compartments opened inside the placement compartment. Two sets of second limiting rods are symmetrically fixedly connected to both sides of the inner wall of the installation compartment.

[0008] Optionally, the outer wall of the placement chamber is provided with an observation window corresponding to the installation chamber, and a second position mark corresponding to the observation window is fixedly connected to the outer wall of the placement chamber near the turntable. The outside of the placement chamber is provided with uniformly distributed anti-slip grooves.

[0009] Optionally, the blood storage assembly includes a blood collection tube slidably connected to the inside of the installation chamber. Two sets of sliding grooves are symmetrically formed on the outer wall of the blood collection tube near the limiting plate. The sliding grooves are slidably connected to the second limiting rod, and the blood collection tube is slidably connected to the connecting needle.

[0010] Optionally, a third position marker is fixedly connected to the middle section of the blood collection tube.

[0011] Optionally, the connecting assembly includes a second connector slidably connected to the outside of the first connector, a connecting hose fixedly connected to the side of the second connector away from the limiting plate, and a needle fixedly connected to the end of the connecting hose away from the limiting plate.

[0012] Optionally, the sealing assembly includes a slide rod slidably connected to the inner side of the limiting ring, a sealing plug fixedly connected to the end of the slide rod away from the limiting ring, a top rod fixedly connected to the outer wall of the sealing plug away from the slide rod, a sealing ring slidably connected to the outer side of the sealing plug, a support ring fixedly connected to the outer side of the sealing plug, a second spring fixedly connected to the outer wall of the support ring away from the top rod, and a stress ring fixedly connected to the end of the second spring away from the support ring.

[0013] Optionally, the stress ring and the sealing ring are fixed to the inner walls of the first joint and the second joint, respectively.

[0014] Optionally, the engaging assembly includes a rotating shaft rotatably connected to the outer wall of the first limiting rod, a limiting block fixed to the bottom of the inner side of the groove, an engaging rod fixedly connected to the top outer wall of the rotating shaft, the engaging rod engaging with the second connector, a handle fixedly connected to the side wall of the rotating shaft, a torsion spring engaging with the side of the engaging rod near the limiting plate, the torsion spring rotatably connected to the first limiting rod, and the bottom end of the torsion spring engaging with the limiting block.

[0015] Optionally, when the second marker is aligned with the first and third markers respectively, the blood collection tube, the connecting needle and the first connector are in a straight line to form a channel, and the negative pressure inside the blood collection tube is used to draw blood from the patient.

[0016] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects: In the above scheme, by inserting the blood collection tube into the installation chamber and limiting the sliding groove with the second limiting rod, the blood collection tube, after being connected to the connecting needle at the deepest point of the placement chamber, is rotated to align the third position mark with the second position mark. The second limiting rod then locks the blood collection tube in place, preventing it from falling out of the installation chamber. This allows for the placement of multiple blood collection tubes. Subsequently, simply rotating the placement chamber connects different blood collection tubes to the first connector, thus connecting the blood collection tubes to the outer wall connection assembly for blood collection. This reduces frequent needle insertions and tube changes, lowering the risk of contamination. The rotation of the placement chamber to the connector improves operational efficiency, simplifies the process, and reduces human error. Reducing the number of needle pricks improves patient comfort while ensuring sample stability and representativeness, thus guaranteeing the accuracy of diagnostic results. The sealing assembly allows for sealing of both the first and second connectors even when the first connector is not connected. This simultaneously seals both the blood collection end and the patient's needle insertion end, ensuring sterility of both ends before connection, minimizing the risk of infection, preventing blood sample contamination, and improving sample quality and accuracy. Simultaneously, it simplifies procedures, increases efficiency, reduces medical accidents, enhances patient trust, and improves the overall healthcare experience. After the first and second connectors are connected by a locking assembly, the second connector is locked in place, thus fixing the position between the first and second connectors. This prevents the second connector from detaching from the first connector during blood collection, effectively avoiding the risk of equipment malfunction and improving operational safety and sample quality. The fixed connector ensures that the blood sample is not contaminated, guaranteeing its integrity and accuracy, while simplifying the operation process, reducing human error, and ensuring the smooth operation and medical safety of the entire process. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0018] Figure 1 This is the three-dimensional representation of the present invention. Figure 1 And enlarged images; Figure 2 This is the three-dimensional representation of the present invention. Figure 2 ; Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle; Figure 4This is a cross-sectional view of the limiting plate of the present invention. Figure 1 ; Figure 5 yes Figure 4 Enlarged view of a section at point B in the middle; Figure 6 yes Figure 4 Enlarged view of a section at point C; Figure 7 This is a cross-sectional view of the limiting plate of the present invention. Figure 2 ; Figure 8 yes Figure 7 Enlarged view of a section at point D; Figure 9 This is a cross-sectional view of the limiting plate of the present invention. Figure 3 ; Figure 10 This is a cross-sectional view of the placement compartment of the present invention; Figure 11 This is a cross-sectional view of the sealing ring of the present invention.

[0019] [Figure Labels]

[0020] 1. Limiting plate; 11. Groove; 12. Limiting block; 13. Torsion spring; 14. First limiting rod; 15. Rotating shaft; 16. Engaging rod; 17. Handle; 18. First position indicator; 19. First connector; 20. Through hole; 2. Second connector; 21. Connecting hose; 22. Needle; 23. Locking slot; 3. Sealing ring; 31. Stress ring; 32. Limiting ring; 33. Slide rod; 34. Support ring; 35. Sealing plug; 36. Push rod; 37. Second spring; 4. Placement compartment; 41. Turntable; 42. Engaging ring; 43. Connecting pin; 44. Installation compartment; 45. Second limit rod; 46. Anti-slip groove; 47. Observation window; 48. Second position marker; 5. Blood collection tube; 51. Sliding groove; 52. Third position marker.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0023] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0024] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0025] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0026] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0027] like Figures 1 to 11As shown, this embodiment of the invention provides a blood sampling device for tumors to prevent contamination, including a limiting disk 1, and further including: a turntable 41, rotatably connected to the inner side of the limiting disk 1, which supports and limits the turntable 41 through the limiting disk 1; a locking ring 42, fixed to the outer side of the middle section of the locking ring 42, used to lock with the limiting disk 1 to fix the turntable 41, and limiting the rotation between the turntable 41 and the limiting disk 1 through the locking ring 42; a storage component, disposed on the outer wall of the turntable 41 away from the limiting disk 1, which supports and limits the storage component through the turntable 41; a blood storage component, disposed inside the storage component, used to extract and store blood through the blood storage component; and a first connector 19, fixed to the top of the limiting disk 1 on the outer wall away from the turntable 41, which is connected to the first connector 19 through the limiting disk 1. The head 19 is supported and fixed; the connecting component is set on the outside of the first connector 19 for connecting the patient's blood vessel to the first connector 19; the limiting rings 32 are respectively set on the inner side of the connection end of the first connector 19 and the connecting component, and the limiting rings 32 on both sides are the same; the sealing component is set on the inner side of the limiting rings 32, and the sealing components are symmetrically set on the inner side of the connection end of the first connector 19 and the connecting component for sealing the connection end of the first connector 19 and the connecting component; the groove 11 is opened on the bottom of the limiting disk 1 away from the turntable 41; the first limiting rod 14 is fixed to the top of the inner side wall of the groove 11; the engaging component is set on the outside of the first limiting rod 14, and its engaging end is connected to the connection end of the connecting component; the first mark 18 is fixed on the top outer wall of the limiting disk 1 and is in the same vertical direction as the first connector 19.

[0028] like Figure 1 , Figure 5 , Figure 7 As shown, the storage assembly includes a placement compartment 4 fixed to the side of the turntable 41 away from the limiting plate 1, with the turntable 41 supporting and fixing the placement compartment 4, and multiple connecting pins 43 fixed to the outer wall of the turntable 41 away from the limiting plate 1. Figure 9 As shown, a through hole 20 is provided inside the limiting plate 1, which connects the connecting pin 43 and the first connector 19. Figure 10 As shown, the placement chamber 4 has evenly distributed mounting chambers 44 on its inner side, through which the blood storage component can be stored. Two sets of second limiting rods 45 are symmetrically fixedly connected to both sides of the inner wall of the mounting chamber 44, supporting and fixing the second limiting rods 45 through the mounting chamber 44. The outer wall of the placement chamber 4 has an observation window 47 corresponding to the mounting chamber 44, through which the amount of blood drawn from the internal blood storage component can be observed. A second position mark 48 corresponding to the observation window 47 is fixedly connected to the outer wall of the placement chamber 4 near the turntable 41. The outer side of the placement chamber 4 has evenly distributed anti-slip grooves 46, which can increase the friction between the fingers and the placement chamber 4.

[0029] For example Figure 10As shown, the blood storage assembly includes a blood collection tube 5 slidably connected to the inner side of the mounting chamber 44. The mounting chamber 44 limits the position of the blood collection tube 5. Two sets of sliding grooves 51 are symmetrically formed on the outer wall of the blood collection tube 5 near the limiting plate 1. The sliding grooves 51 are slidably connected to the second limiting rod 45, which limits the position of the sliding grooves 51. Figure 9 As shown, the blood collection tube 5 is slidably connected to the connecting needle 43. The connecting needle 43 is inserted into the blood collection tube 5, thereby connecting it to the first connector 19 on the outside.

[0030] like Figure 4 As shown, a third position marker 52 is fixedly connected to the middle section of the blood collection tube 5. During the process of inserting the blood collection tube 5 into the installation chamber 44, the third position marker 52 is located inside the side wall of the installation chamber 44. After the blood collection tube 5 is fully inserted into the installation chamber 44, when the third position marker 52 is aligned with the second position marker 48, the sliding groove 51 cooperates with the second limiting rod 45 to lock the blood collection tube 5.

[0031] like Figure 2 and Figure 3 As shown, the connecting assembly includes a second connector 2 that is slidably connected to the outside of the first connector 19. The first connector 19 limits the second connector 2. A connecting hose 21 is fixedly connected to the side of the second connector 2 away from the limiting plate 1. A needle 22 is fixedly connected to the end of the connecting hose 21 away from the limiting plate 1. The second connector 2 and the needle 22 are connected through the connecting hose 21.

[0032] like Figure 8 and Figure 11 As shown, the sealing assembly is installed inside the second connector 2 and the first connector 19. The sealing assembly includes a stress ring 31 and a sealing ring 3. The stress ring 31 and the sealing ring 3 are fixed to the inner walls of the first connector 19 and the second connector 2, respectively. The second connector 2 and the first connector 19 simultaneously support and fix the sealing ring 3 and the stress ring 31, providing stress points for the sealing assembly. The sealing assembly also includes a slide rod 33 slidably connected to the inner side of the limiting ring 32. The limiting ring 32 limits the slide rod 33. A sealing plug 35 is fixedly connected to the end of the slide rod 33 away from the limiting ring 32. A top rod 36 is fixedly connected to the outer wall of the sealing plug 35 away from the slide rod 33. A sealing ring 3 is slidably connected to the outer side of the sealing plug 35. The sealing ring 3 and the sealing plug 35 cooperate with each other to seal the outer ends of the second connector 2 and the first connector 19. A support ring 34 is fixedly connected to the outer side of the sealing plug 35. One end of a second spring 37 is fixedly connected to the outer wall of the support ring 34 away from the top rod 36. The other end of the second spring 37 is fixedly connected to the stress ring 31.

[0033] like Figure 3 and Figure 6As shown, the engaging assembly includes a rotating shaft 15 rotatably connected to the outer wall of the first limiting rod 14, a limiting block 12 fixed to the bottom of the inner side of the groove 11 and supported and fixed by the first limiting rod 14, and an engaging rod 16 fixedly connected to the top outer wall of the rotating shaft 15. The engaging rod 16 engages with the second connector 2, thereby increasing the connection stability between the first connector 19 and the second connector 2. Specifically, the second connector 2 is provided with a slot 23, into which the engaging rod 16 can be inserted. A handle 17 is fixedly connected to the side wall of the rotating shaft 15. A torsion spring 13 is engaged with the side of the engaging rod 16 near the limiting plate 1. The torsion spring 13 is sleeved on the first limiting rod 14, with one end engaged with the limiting block 12 and the other end connected to the engaging rod 16.

[0034] like Figure 1 and Figure 4 As shown, when the second label 48 is aligned with the first label 18 and the third label 52 respectively, the blood collection tube 5, the connecting needle 43 and the first connector 19 are in the same straight line to form a channel, and the negative pressure inside the blood collection tube 5 is used to draw blood from the patient.

[0035] The working process of the technical solution provided by this invention is as follows: When using this invention, firstly, align the sliding groove 51 on the outside of the blood collection tube 5 with the second limiting rod 45 on the inside of the installation chamber 44, and insert the blood collection tube 5 into the installation chamber 44. During the process, the connecting needle 43 will be inserted into the blood collection tube 5 to connect the first connector 19 and the blood collection tube 5. Then press down on the handle 17, which drives the rotating shaft 15 to rotate around the first limiting rod 14, thereby lifting the locking rod 16 and compressing the torsion spring 13. Then, after the second connector 2 is sleeved on the outside of the first connector 19, release the handle 17. The torsion spring 13 drives the rotating shaft 15 to rotate around the first limiting rod 14 with the limiting block 12 as the stress point. At the same time, the rotating shaft 15 drives the locking rod 16 to rotate towards the second connector 2, thereby locking the second connector 2. During the process of the second connector 2 being sleeved onto the outside of the first connector 19, the top rod 36 in the inner sealing assembly of the first connector 19 and the second connector 2 first contacts and pushes against each other, separating the sealing ring 3 and the sealing plug 35, and compressing the second spring 37, thereby connecting the first connector 19 and the second connector 2 on both sides. Finally, the needle 22 is inserted into the patient's vein, and the placement chamber 4 is rotated to align the second marker 48 on the top of the placement chamber 4 with the first marker 18, thereby connecting the connecting needle 43 and the first connector 19. This connects the blood collection tube 5 with the external second connector 2, connecting tubing 21, and needle 22. The negative pressure inside the blood collection tube 5 is used to draw blood from the patient's vein. After one tube is full, simply rotate the placement chamber 4 to align the second marker 48 of the blood collection tube 5 that has not yet been used with the first marker 18, and continue blood collection.

[0036] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A blood sampling device for tumors that prevents contamination, characterized in that, The device includes a limiting plate, which is rotatably connected to a storage component. The storage component includes multiple placement compartments, each containing a blood collection tube. A first connector is installed inside the limiting plate, which is connected to a connecting component. The connecting component includes a second connector, and sealing components are installed inside the first and second connectors. The blood collection tube, the first connector, and the second connector are connected in series.

2. The anti-contamination blood tumor blood sampling device according to claim 1, characterized in that, The storage assembly includes a placement compartment fixed to the side of the turntable away from the limiting plate, multiple connecting pins fixed to the outer wall of the turntable away from the limiting plate, and evenly distributed installation compartments inside the placement compartment. Two sets of second limiting rods are symmetrically fixedly connected to both sides of the inner wall of the installation compartment.

3. The anti-contamination blood tumor blood sampling device according to claim 2, characterized in that, The outer wall of the placement chamber is provided with an observation window corresponding to the installation chamber. A second position marker corresponding to the observation window is fixedly connected to the outer wall of the placement chamber near the turntable. The outside of the placement chamber is provided with evenly distributed anti-slip grooves.

4. The anti-contamination blood tumor blood sampling device according to claim 3, characterized in that, The blood storage assembly includes a blood collection tube that is slidably connected to the inside of the installation chamber. Two sets of sliding grooves are symmetrically opened on the outer wall of the blood collection tube near the limiting plate. The sliding grooves are slidably connected to the second limiting rod, and the blood collection tube is slidably connected to the connecting needle.

5. The anti-contamination blood tumor blood sampling device according to claim 4, characterized in that, The middle section of the blood collection tube is fixedly connected to a third position marker.

6. The anti-contamination blood tumor blood sampling device according to claim 1, characterized in that, The connecting assembly includes a second connector that is slidably connected to the outside of the first connector. A connecting hose is fixedly connected to the side of the second connector away from the limiting plate, and a needle is fixedly connected to the end of the connecting hose away from the limiting plate.

7. The anti-contamination blood tumor blood sampling device according to claim 1, characterized in that, The sealing assembly includes a limiting ring installed in the first joint and the second joint, and a slide rod slidably connected to the inner side of the limiting ring. A sealing plug is fixedly connected to the end of the slide rod away from the limiting ring. A top rod is fixedly connected to the outer wall of the sealing plug away from the slide rod. A sealing ring is slidably connected to the outer side of the sealing plug. A support ring is fixedly connected to the outer side of the sealing plug. A second spring is fixedly connected to the outer wall of the support ring away from the top rod. A stress ring is fixedly connected to the end of the second spring away from the support ring.

8. The anti-contamination blood tumor blood sampling device according to claim 7, characterized in that, The stress ring and the sealing ring are respectively fixed to the inner walls of the first joint and the second joint.

9. The anti-contamination blood tumor blood sampling device according to claim 8, characterized in that, The engaging assembly includes a rotating shaft rotatably connected to the outer wall of the first limiting rod and a limiting block fixed to the bottom of the inner side of the groove. An engaging rod is fixedly connected to the top outer wall of the rotating shaft. The engaging rod is engaged with the second connector. A handle is fixedly connected to the side wall of the rotating shaft. A torsion spring is engaged with the side of the engaging rod near the limiting plate. The torsion spring is rotatably connected to the first limiting rod. The bottom end of the torsion spring is engaged with the limiting block.

10. The anti-contamination blood tumor blood sampling device according to claim 3, characterized in that, When the second marker is aligned with the first and third markers, the blood collection tube, connecting needle, and first connector are in a straight line, forming a channel, and the negative pressure inside the blood collection tube is used to draw blood from the patient.

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