Puncture mechanism and sample processing apparatus
By designing the puncture module and puncture head of the puncture mechanism, the problems of high sealing cost and easy damage of traditional deep well plate sealing film and pipette are solved, realizing automated operation, reducing cost and sample contamination.
Patent Information
- Application Number
- CN202422726114.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing technologies, traditional deep-well plate sealing is costly and easily damages pipettes, leading to sample contamination and equipment damage.
A puncture mechanism was designed, comprising a liftable puncture module and a puncture head. The cutting edge can puncture the punctured part to form an opening of a predetermined shape and size, thereby achieving automated operation and avoiding direct contact between the pipette and the punctured part.
It achieves automated operation, reduces manual labor requirements, lowers costs, avoids sample contamination and pipette damage, and improves operational stability and efficiency.
Smart Images
Figure CN223501026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sample processing equipment technology, specifically to a puncture mechanism and a sample processing device. Background Technology
[0002] A sample processing device is an automated system for processing biological samples, widely used in the field of biological sample detection. A sample processing device typically includes pipetting devices, deep-well plates, and other sample processing components. Multiple sample processing components work together according to a pre-set experimental procedure to extract and purify biological samples, facilitating subsequent detection and analysis.
[0003] When processing biological samples using a sample processing device, liquid is drawn from the deep well plate using a pipette of the pipette device for cupping or filtration operations.
[0004] To prevent sample contamination, a membrane is typically sealed at the opening of a deep well plate. Traditionally, this is done by manually tearing off the membrane, but sample residue remains on the membrane afterward, causing contamination. Nowadays, membranes that can be penetrated by pipettes are usually used at the opening of deep well plates, but these membranes are more expensive and can damage pipettes. Utility Model Content
[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a puncture mechanism is provided, the technical solution of which is as follows.
[0006] The puncture mechanism includes a puncture module that can be raised and lowered relative to the punctured part in an initial position and a puncture position. The puncture module has a mounting plate and a puncture head. The puncture head is mounted on the mounting plate and has a cutting edge. When the puncture module is in the puncture position, the cutting edge punctures the punctured part and can form an opening of a predetermined shape and size on the punctured part.
[0007] The puncture mechanism of this invention achieves automation, saves labor, and reduces sample contamination by puncturing the punctured part. On the other hand, the cutting edge of the puncture head can puncture punctured parts of various materials, saving costs. Furthermore, by forming an opening of a predetermined shape and size on the punctured part, it facilitates the pipette on the sample processing device to pass through and collect liquid, thus preventing the pipette from contacting the punctured part and avoiding the phenomenon of pipette damage caused by having to penetrate the punctured part to collect liquid.
[0008] For example, the piercing head has a connecting part and a pointed head. One end of the connecting part is disposed on the mounting plate, and the pointed head is disposed at the end of the connecting part away from the mounting plate. The pointed head has a cutting surface that is inclined relative to the connecting part, and the cutting surface forms a cutting edge.
[0009] For example, the pointed head is provided with four cutting edges, and the pointed head forms a four-sided pyramid with a pointed tip, the pointed tip facing away from the end of the connecting part.
[0010] For example, the pointed end is provided with multiple facets, and an acute angle is formed between two adjacent facets; and / or, protrusions are protruding from the facets.
[0011] For example, the middle of the cut surface is concave into an arc shape relative to the edge of the cut surface.
[0012] For example, the puncture module also has an elastic element, and the mounting plate is floated by the elastic element. When the puncture module is in the puncture position, the elastic element is in a compressed state to have a restoring force. In the case that the blade punctures the punctured part, the mounting plate moves relative to the punctured part by the restoring force until the blade detaches from the punctured part.
[0013] For example, the mounting plate is connected to a support structure, and the two ends of the elastic element are respectively connected between a portion of the support structure and the mounting plate, with a piercing head provided on the end face of the mounting plate away from the elastic element.
[0014] For example, the support structure includes a support column, a guide column, a movable plate, and a support plate. The support column is located between the movable plate and the support plate. The mounting plate is slidably connected to the support column and connected to the movable plate through the guide column. An elastic element is sleeved on the support column and connected between the movable plate and the mounting plate.
[0015] For example, the puncture module is configured to be movable between the puncture station and the cleaning station, and the punctured part is set at the puncture station; the puncture mechanism also includes a cleaning module set at the cleaning station, and when the puncture module moves to the cleaning station, the puncture module is supported on the cleaning module.
[0016] For example, the cleaning module includes a cleaning tank and an elastic support. The cleaning tank is floatingly set by the elastic support. When the piercing module moves to the cleaning station and is moved by the downward pressure until the cutting edge is placed in the cleaning tank, both the elastic element and the elastic support are in a compressed state to have elastic force. When the downward pressure is removed, the mounting plate moves relative to the cleaning tank by the elastic force until the cutting edge is removed from the cleaning tank.
[0017] According to one aspect of the present invention, a sample processing device is provided, the sample processing device including an operating table and a puncture mechanism as described above, the puncture mechanism being disposed on the operating table.
[0018] This utility model description introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0019] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description
[0020] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,
[0021] Figure 1 A perspective view of the puncture mechanism in its initial position, which is an exemplary embodiment of the present invention.
[0022] Figure 2 for Figure 1 A three-dimensional view of the puncture mechanism at the puncture position;
[0023] Figure 3 for Figure 1 A 3D view of the puncture mechanism in the cleaning station;
[0024] Figure 4 A perspective view of a puncture head as an exemplary embodiment of the present invention;
[0025] Figure 5 for Figure 4 The front view of the puncture head is shown;
[0026] Figure 6 for Figure 5 AA section view in the middle;
[0027] Figure 7 A perspective view of a puncture head, which is another exemplary embodiment of the present invention;
[0028] Figure 8 for Figure 7 The front view of the puncture head is shown;
[0029] Figure 9 for Figure 8 BB section view in the middle.
[0030] The above figures include the following reference numerals:
[0031] 100. Puncture module; 110. Mounting plate; 120. Puncture head; 121. Blade edge; 122. Connecting part; 123. Pointed head; 1231. Cutting surface; 1232. Vertical surface; 1233. Protrusion; 130. Elastic element; 140. Support structure; 141. Support column; 142. Guide column; 143. Movable plate; 144. Support plate; 150. First linear bearing; 200. Cleaning module; 210. Cleaning tank; 211. Tank side wall; 212. Tank bottom wall; 2121. Flow guide channel; 213. Water inlet; 214. Overflow outlet; 220. Elastic support element; 221. Connecting plate; 2211. Mounting groove; 222. Elastic component; 223. Second linear bearing; 230. Fixing part; 240. Cleaning table; 300. Punctured part. Detailed Implementation
[0032] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.
[0033] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.
[0034] An embodiment of this utility model provides a puncture mechanism. The puncture mechanism provided by this utility model can be applied in a sample processing device. A detailed description of an embodiment according to this utility model will be provided below with reference to the accompanying drawings.
[0035] See Figure 1 and Figure 2 The puncture mechanism includes a position relative to the punctured part 300 in the initial position (e.g., Figure 1 ) and puncture site (e.g. Figure 2A liftable puncture module 100 is provided. Its initial position can be above the punctured part 300 when the puncture mechanism is not subjected to any external force. The puncture position can be the position where the puncture mechanism punctures or breaks through the punctured part 300. The puncture module 100 may have a mounting plate 110 and a puncture head 120. The puncture head 120 may be mounted on the mounting plate 110. Multiple puncture heads 120 may be present, arranged in a matrix or linear pattern on the mounting plate 110. The puncture head 120 may have a cutting edge 121. The cutting edge 121 can puncture the punctured part 300 when the puncture module 100 is in the puncture position, and can form an opening of a predetermined shape and size on the punctured part 300. It should be noted that since puncture heads 120 of different shapes and sizes can be manufactured, a puncture head 120 of one shape and size can form an opening of a corresponding shape and size on the punctured part 300. Therefore, the shape and size of the opening can be predetermined by the shape and size of the puncture head 120. For example, see reference Figures 4 to 6 This utility model discloses a puncture head 120. The puncture head 120 can be generally shaped like a regular square pyramid. The width L1 of the puncture head 120 can be 8.8mm to 8.9mm, for example, the width L1 can be 8.8mm, 8.85mm, or 8.9mm. The height H1 of the puncture head 120 can be 17.8mm to 17.9mm, for example, the height H1 can be 17.8mm, 17.85mm, or 17.9mm. The length D1 of the cutting edge 121 can be 10.5mm to 10.6mm, for example, the length D1 can be 10.5mm, 10.55mm, or 10.6mm. Thus, when puncturing with this puncture head 120, a square opening with a length of 8.8mm to 8.9mm can be formed on the punctured part 300, for example, the length of the square opening can be 8.8mm, 8.85mm, or 8.9mm. (See also...) Figures 7 to 9Another type of piercing head 120 according to this utility model. The shape of the piercing head 120 can be generally a regular square pyramid with circumferentially spaced arc-shaped structures on the plane where the cutting edge 121 is located. The width L2 of the piercing head 120 can be 13.8mm to 13.9mm, for example, the width L2 can be 13.8mm, 13.85mm, 13.9mm, etc. The height H2 of the piercing head 120 can be 20.8mm to 20.9mm, for example, the height H2 can be 20.8mm, 20.85mm, 20.9mm, etc. The length D2 of the cutting edge 121 can be 12.5mm to 12.6mm, for example, the length D2 can be 12.5mm, 12.55mm, 12.6mm, etc. Thus, when puncture is performed through the puncture head 120, a circular opening with a diameter of 13.8 mm to 13.9 mm can be formed on the punctured part 300. For example, the length of the circular opening can be 13.8 mm, 13.85 mm, 13.9 mm, etc. This opening facilitates the passage of a pipette from the sample processing device through the punctured part 300 for liquid collection. The shape and size of the opening can be preset according to the shape and size of different pipettes. Specifically, the punctured part 300 can be a thin film, such as an aluminum film, sealing the opening of a deep-well plate used to hold reagents.
[0036] The puncture mechanism of this utility model, on the one hand, punctures the punctured part 300, realizing automation, saving labor, and reducing sample contamination; on the other hand, the cutting edge 121 of the puncture head 120 can puncture the punctured part 300 of various materials, saving costs, and by forming an opening of a predetermined shape and size on the punctured part 300, it is convenient for the pipette on the sample processing device to pass through for liquid collection, so that the pipette does not come into contact with the punctured part 300, avoiding the phenomenon that the pipette must penetrate the punctured part 300 to collect liquid, which would cause damage to the pipette.
[0037] See also Figure 1 , Figure 4 and Figure 7The piercing head 120 may have a connecting portion 122 and a pointed head 123. One end of the connecting portion 122 may be disposed on the mounting plate 110. The piercing head 120 and the mounting plate 110 may be an integral structure. Alternatively, the piercing head 120 and the mounting plate 110 may be separate structures, which can be connected by welding, riveting, or gluing. The pointed head 123 may be disposed at the end of the connecting portion 122 away from the mounting plate 110 to facilitate the pointed head 123 piercing the pierced part 300. The pointed head 123 may have a cut surface 1231 inclined relative to the connecting portion 122. The cut surface 1231 may form a cutting edge 121. Thus, the piercing head 120 with the cutting edge 121 formed by the inclined cut surface 1231 has higher stability than the needle-type piercing head 120, can pierce more materials of the pierced part 300, and saves costs.
[0038] Furthermore, a vertical surface 1232 may be provided between the inclined cut surface 1231 and the connecting part 122, so as to facilitate the creation of an opening of a predetermined shape and size on the punctured part 300 through the vertical surface 1232.
[0039] See again Figure 1 , Figure 4 and Figure 7 The pointed tip 123 may have four cutting edges 121 to provide higher stability. The pointed tip 123 can form a pointed quadrangular pyramid through the four cutting edges 121. The pointed end can face away from the connecting part 122 to facilitate piercing the pierced part 300. The four cutting edges 121 form a square opening in the pierced part 300, facilitating the pipette's passage for liquid collection. Of course, it is not excluded that the pointed tip 123 may have three, five, or six cutting edges 121, etc.
[0040] See again Figure 1 , Figure 4 and Figure 7 The pointed tip 123 may have multiple facets 1231, and an acute angle may be formed between two adjacent facets 1231. This makes the pointed tip 123 sharper, requiring only a small amount of pressure to pierce the object 300 in a single strike.
[0041] See again Figure 1 , Figure 4 and Figure 7 The middle part of the cut surface 1231 can be concave into an arc shape relative to the edge of the cut surface 1231. In this way, an acute angle is formed between two adjacent cut surfaces 1231, making the tip 123 sharper and easier to pierce the pierced part 300.
[0042] In one embodiment of this utility model, see again in conjunction with the reference. Figure 1, Figure 4 , Figure 5 and Figure 6 The pointed tip 123 can be formed into a pointed square pyramid through four facets 1231, and the middle of the facet 1231 can be concave into an arc shape relative to the edge of the facet 1231, so that an acute angle can be formed between two adjacent facets 1231. In this way, the pointed tip pierces the punctured part 300, the cutting edge 121 cuts the punctured part 300, and then the vertical surface 1232 presses against it to form a square opening on the punctured part 300. Since the structure of the puncture head 120 is both stable and sharp enough, it can pierce the punctured part 300 of various materials, saving costs. Moreover, the square opening formed on the punctured part 300 makes it convenient for the pipette to pass through the square opening to collect liquid without touching the punctured part 300, reducing the possibility of sample contamination.
[0043] Furthermore, the height H3 of the vertical surface 1232 of the piercing head 120 can be 6.2mm to 6.25mm, for example, 6.2mm, 6.22mm, 6.25mm, etc. Within this range, the vertical surface 1232 can ensure that it presses against the pierced part 300 to form a square opening. The width L3 of the connecting part 122 can be 5.8mm to 5.9mm, for example, 5.8mm, 5.85mm, 5.9mm, etc. The height H4 of the connecting part 122 can be 1.9mm to 1.95mm, for example, 1.9mm, 1.92mm, 1.95mm, etc. This arrangement of the connecting part 122 can ensure the stability of the connection with the mounting plate 110. Because the cut surface 1231 is a concave arc shape, that is, the cut surface 1231 is an arc segment, the radius R of the arc segment can be 12.2mm to 12.3mm, for example, the radius R can be 12.2mm, 12.25mm, 12.3mm, etc. By having the radius R of the arc segment of the cut surface 1231 within this range, the cutting edge 121 is made sharper. There is a length S1 from the end of the cut surface 1231 away from the tip to the end of the tip 123 near the connecting part 122. The length S1 can be 4.3mm to 4.35mm, for example, the length S1 can be 4.3mm, 4.32mm, 4.35mm, etc. By having this length S1 within this range, the stability of the piercing head 120 is ensured.
[0044] See also Figure 1 , Figure 7 , Figure 8 and Figure 9 The cut surface 1231 may have protrusions 1233. In this way, the protrusions 1233 enlarge the opening formed on the punctured part 300, making it easier for a larger pipette to pass through for liquid collection.
[0045] In another embodiment of this utility model, see again the references Figure 1, Figure 7 , Figure 8 and Figure 9 The pointed tip 123 can be formed into a four-sided pyramid with a pointed tip through four facets 1231, and the middle part of the facet 1231 can be concave into an arc shape relative to the edge of the facet 1231, so that an acute angle can be formed between two adjacent facets 1231. An arc-shaped protrusion 1233 protrudes from the facet 1231 near the connecting part 122. In this way, the pointed tip pierces the pierced part 300, the cutting edge 121 cuts the pierced part 300, and the protrusion 1233 presses against it to form a circular opening on the pierced part 300. Since the structure of the piercing head 120 is both stable and sharp enough, it can pierce the pierced part 300 of various materials, saving costs, and forming a larger circular opening on the pierced part 300, which makes it convenient for larger pipettes to collect liquid through the larger circular opening without contacting the pierced part 300, reducing the possibility of sample contamination.
[0046] Furthermore, the width L4 of the connecting portion 122 of the piercing head 120 can be 9.9mm to 9.95mm, for example, the width L3 can be 9.9mm, 9.92mm, 9.95mm, etc. The height H4 of the connecting portion 122 can be 1.9mm to 1.95mm, for example, the height H5 can be 1.9mm, 1.92mm, 1.95mm, etc. This arrangement of the connecting portion 122 can ensure the stability of the connection with the mounting plate 110. An angle α can be formed between the two cutting edges 121, and the angle α can be 80° to 90°, for example, the angle α can be 80°, 85°, 90°, etc. In this way, the cutting edges 121 are both sharp and stable.
[0047] See also Figures 1 to 3 The puncture module 100 may also include an elastic element 130. The mounting plate 110 can be floated via the elastic element 130. When the puncture module 100 is in the puncture position, the elastic element 130 can be in a compressed state to have a restoring force. When the cutting edge 121 punctures the punctured part 300, the mounting plate 110 can move relative to the punctured part 300 by the restoring force until the cutting edge 121 disengages from the punctured part 300. In this way, under the action of the elastic element 130, the puncture head 120 can be automatically separated from the punctured part 300, thereby avoiding the phenomenon of the puncture head 120 getting stuck on the punctured part 300. Specifically, the elastic element 130 can be a spring or the like.
[0048] See again Figures 1 to 3The mounting plate 110 can be connected to the support structure 140. The two ends of the elastic element 130 can be connected between a portion of the support structure 140 and the mounting plate 110, respectively. The two ends of the elastic element 130 can be connected to the portion of the support structure 140 and the mounting plate 110 by welding, gluing, or other connection methods. A piercing head 120 can be provided on the end face of the mounting plate 110 away from the elastic element 130. This facilitates the raising and lowering of the piercing module 100 relative to the pierced part 300 between the initial position and the piercing position. The mounting plate 110 and the support structure 140 can keep the elastic element 130 in a compressed state until it pierces the pierced part 300, providing a restoring force. This facilitates the automatic separation of the piercing head 120 from the pierced part 300, thereby preventing the piercing head 120 from getting stuck on the pierced part 300.
[0049] See again Figures 1 to 3 The support structure 140 may include a support column 141, a guide column 142, a movable plate 143, and a support plate 144. The support plate 144 and the movable plate 143 may be arranged opposite to each other. The support column 141 may be located between the movable plate 143 and the support plate 144. The mounting plate 110 may be slidably connected to the support column 141 and connected to the movable plate 143 through the guide column 142. The elastic element 130 may be sleeved on the support column 141 and connected between the movable plate 143 and the mounting plate 110. The support plate 144 provides support. The movable plate 143 and the mounting plate 110 may move relative to the support plate 144 along the support column 141, so that the elastic element 130 can be in a compressed state. The guide column 142 may be used to fix the movable plate 143 and prevent the movable plate 143 from detaching from the support column 141 due to the restoring force of the elastic element 130. A first linear bearing 150 may be provided between the elastic element 130 and the mounting plate 110. The first linear bearing 150 is used to guide and support the elastic element 130 to move along a straight path (i.e., along the support column 141). In this way, by moving the mounting plate 110 and the movable plate 143 relatively close to the support plate 144, the elastic element 130 can be compressed to pierce the pierced part 300, so as to have a restoring force. Then, the restoring force of the elastic element 130 drives the mounting plate 110 to move relatively away from the support plate 144, so as to facilitate the automatic separation of the piercing head 120 from the pierced part 300, thereby avoiding the phenomenon that the piercing head 120 gets stuck on the pierced part 300. Moreover, the structure is simple and the cost is reduced.
[0050] Furthermore, the puncture mechanism may also include a robotic arm or gripper assembly (not shown). The robotic arm or gripper assembly applies downward pressure or upward pull to the puncture module 100. Thus, the puncture module 100 can be applied to various scenarios, including but not limited to sample processing, thereby reducing costs.
[0051] See again Figures 1 to 3The puncture module 100 is configured to move between the puncture station and the cleaning station. The punctured part 300 can be positioned at the puncture station. Specifically, a deep hole plate can be positioned at the puncture station, and the punctured part 300 is sealed in the opening of the deep hole plate. The puncture mechanism may also include a cleaning module 200 positioned at the cleaning station. When the puncture module 100 moves to the cleaning station, it can be supported on the cleaning module 200. Specifically, the puncture module 100 can be moved between the puncture station and the cleaning station by a robotic arm or gripper assembly. In this way, after the puncture module 100 performs the puncture process (i.e., the process of the puncture module 100 puncturing the punctured part 300), it is moved to the cleaning station for cleaning, thereby avoiding the risk of cross-contamination during the next puncture process.
[0052] See also Figure 3 , Figure 4 and Figure 7 The cleaning module 200 may include a cleaning tank 210 and an elastic support 220. The cleaning tank 210 may contain cleaning fluid (such as clean water). The cleaning tank 210 can be floated by the elastic support 220. When the puncture module 100 moves to the cleaning station and is moved under downward pressure until the cutting edge 121 is placed in the cleaning tank 210, both the elastic member 130 and the elastic support 220 can be in a compressed state to have elastic force. It should be noted that the elastic force includes the restoring force of the elastic member 130 and the restoring force of the elastic support 220. When the downward pressure is removed, the mounting plate 110 can be moved relative to the cleaning tank 210 by the elastic force until the cutting edge 121 is removed from the cleaning tank 210. In this way, after cleaning, the cutting edge 121 is removed from the cleaning tank 210, and the cleaning fluid on the cutting edge 121 can be dried, avoiding the risk of cross-contamination during the next puncture process.
[0053] Furthermore, a fixing part 230 for fixing the elastic support member 220 can be provided below the cleaning tank 210. The elastic support member 220 may include a connecting plate 221, an elastic component 222, a second linear bearing 223, and a movable column (not shown). The second linear bearing 223 can be connected to the fixing part 230. The movable column can be connected to the connecting plate 221, and the movable column is movably inserted through the second linear bearing 223 to drive the connecting plate 221 to move relative to the fixing part 230. The elastic component 222 can be sleeved on the movable column, and the two ends of the elastic component 222 are respectively located between the connecting plate 221 and the second linear bearing 223. The elastic component 222 can be a spring, etc. The second linear bearing 223 can be used to guide and support the elastic component 222 to move along a straight path (i.e., along the movable column). The connecting plate 221 can be used to connect to the puncture module 100. In this way, the puncture module 100 can rise and fall between contact and separation with the cleaning fluid in the cleaning tank 210. The downward pressure causes the elastic element 130 and the elastic component 222 to be in a compressed state until they come into contact with the cleaning fluid, so as to have elastic force, thereby facilitating the automatic separation of the cutting edge 121 from the cleaning fluid, and thus facilitating the drying of the cutting edge 121.
[0054] See Figure 3 The surface of the connecting plate 221 away from the movable column may be recessed with a mounting groove 2211 facing the movable column to prevent the puncture module 100 from detaching from the connecting plate 221. Specifically, the support plate 144 can be inserted into the mounting groove 2211 to prevent the puncture module 100 from detaching during the cleaning process.
[0055] See again Figure 3 The cleaning tank 210 may have side walls 211 and bottom walls 212. An inlet 213 and an overflow preventer 214 may be provided on the side walls 211. The inlet 213 can be connected to an external pipeline to add cleaning fluid into the cleaning tank 210. The overflow preventer 214 can be connected to an external pipeline to prevent cleaning fluid from overflowing from the cleaning tank 210 to the outside. The overflow preventer 214 may be higher than the inlet 213 along the axial direction, thereby effectively preventing cleaning fluid from overflowing to the outside. An outlet (not shown in the figure) may be provided on the bottom wall 212. The outlet can be connected to an external pipeline to discharge wastewater after cleaning the cutting edge 121. A guide channel 2121 recessed away from the cutting edge 121 may also be provided on the bottom wall 212. The guide channel 2121 can be connected to the outlet to prevent some water from failing to drain from the outlet due to surface tension. It should be noted that the above-mentioned external pipelines are not the same pipeline. External pipelines can be pipelines for conveying cleaning fluid, pipelines for conveying cleaning fluid flowing out of the overflow outlet 214, or pipelines for conveying sewage, etc.
[0056] See again Figure 3The cleaning module 200 may also include a cleaning table 240. The aforementioned fixing part 230 may also be provided on the cleaning table 240. The cleaning tank 210 is detachable from the cleaning table 240, which facilitates cleaning, maintenance or replacement of the cleaning tank 210. By providing the cleaning table 240, it is convenient to clean the puncture module 100.
[0057] See also Figures 1 to 3 The following describes the workflow of the puncture mechanism in detail. The puncture module 100 is transported to the puncture station by a robotic arm or gripper assembly. The support plate 144 is supported on the top wall of the deep hole plate. With the puncture module 100 in its initial position, the robotic arm or gripper assembly applies downward pressure to the puncture module 100, causing the movable plate 143, guide post 142, elastic element 130, mounting plate 110, and puncture head 120 to move downwards along the support post 141. Simultaneously, the elastic element 130 is compressed until the puncture module 100 is in the puncture position. At this point, the cutting edge 121 of the puncture head 120 forms an opening of a predetermined shape and size on the punctured part 300. The elastic element 130 remains compressed to provide restoring force. When the robotic arm or gripper assembly releases the downward pressure, the mounting plate 110 moves relative to the punctured part 300 through the restoring force until the cutting edge 121 disengages from the punctured part 300. This completes one puncture process. The puncture module 100, having completed one puncture process, is transported to the cleaning station by a robotic arm or gripper assembly. The support plate 144 is inserted into the mounting groove 2211 of the connecting plate 221. The robotic arm or gripper assembly applies downward pressure to the puncture module 100, causing the movable plate 143, guide post 142, elastic element 130, mounting plate 110, and puncture head 120 to move downwards along the support post 141. Simultaneously, the elastic element 130 is compressed, further driving the connecting plate 221, movable post, and elastic element 222 downwards, while the elastic element 222 is compressed. This continues until the cutting edge 121 of the puncture head 120 is cleaned with cleaning fluid in the cleaning tank 210. At this point, the elastic elements 130 and 222 are compressed and possess elastic force. The mounting plate 110 moves relative to the cleaning tank 210 by the elastic force until the cutting edge 121 is removed from the cleaning fluid and allowed to dry. This completes one cleaning process. In summary, the above puncture and cleaning processes can be repeated.
[0058] According to one aspect of the present invention, a sample processing apparatus is provided. The sample processing apparatus may include an operating table and a puncture mechanism as described above. The puncture mechanism may be disposed on the operating table. Since the puncture mechanism described above has the aforementioned beneficial effects, the sample processing apparatus including the puncture mechanism described above also has the aforementioned beneficial effects, which will not be elaborated further here.
[0059] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0060] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.
[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.
[0062] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0063] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A puncture mechanism, comprising a puncture module that is movable relative to the punctured part in an initial position and a puncture position, characterized in that, The puncture module has a mounting plate and a puncture head. The puncture head is disposed on the mounting plate and has a cutting edge. When the puncture module is in the puncture position, the cutting edge punctures the punctured part and can form an opening of a predetermined shape and size on the punctured part.
2. The puncture mechanism according to claim 1, characterized in that, The puncture head has a connecting part and a pointed head. One end of the connecting part is disposed on the mounting plate, and the pointed head is disposed at the end of the connecting part away from the mounting plate. The pointed head has a cut surface that is inclined relative to the connecting part, and the cut surface forms the cutting edge.
3. The puncture mechanism according to claim 2, characterized in that, The pointed head is provided with four cutting edges, and the pointed head forms a four-sided pyramid with a pointed tip through the four cutting edges, with the pointed tip facing away from the end of the connecting part.
4. The puncture mechanism according to claim 2, characterized in that, The pointed head is provided with a plurality of cut surfaces, and an acute angle is formed between two adjacent cut surfaces; and / or protrusions are protruding on the cut surfaces.
5. The puncture mechanism according to claim 4, characterized in that, The middle part of the cut surface is concave into an arc shape relative to the edge of the cut surface.
6. The puncture mechanism according to claim 1, characterized in that, The puncture module also has an elastic element, and the mounting plate is floatingly set by the elastic element. When the puncture module is in the puncture position, the elastic element is in a compressed state to have a restoring force. When the blade punctures the punctured part, the mounting plate moves relative to the punctured part by the restoring force until the blade disengages from the punctured part.
7. The puncture mechanism according to claim 6, characterized in that, The mounting plate is connected to a support structure, and the two ends of the elastic element are respectively connected between a portion of the support structure and the mounting plate. The puncture head is provided on the end face of the mounting plate away from the elastic element.
8. The puncture mechanism according to claim 7, characterized in that, The support structure includes a support column, a guide column, a movable plate, and a support plate. The support column is located between the movable plate and the support plate. The mounting plate is slidably connected to the support column and connected to the movable plate through the guide column. The elastic element is sleeved on the support column and connected between the movable plate and the mounting plate.
9. The puncture mechanism according to claim 6, characterized in that, The puncture module is configured to move between the puncture station and the cleaning station, and the punctured part is disposed at the puncture station; the puncture mechanism also includes a cleaning module disposed at the cleaning station, and when the puncture module moves to the cleaning station, the puncture module is supported on the cleaning module.
10. The puncture mechanism according to claim 9, characterized in that, The cleaning module includes a cleaning tank and an elastic support. The cleaning tank is floatingly set by the elastic support. When the puncture module moves to the cleaning station and is moved by the downward pressure until the cutting edge is placed in the cleaning tank, both the elastic element and the elastic support are in the compressed state and have elastic force. When the downward pressure is removed, the mounting plate moves relative to the cleaning tank by the elastic force until the cutting edge is disengaged from the cleaning tank.
11. A sample processing apparatus, characterized in that, It includes an operating table and a puncture mechanism as described in any one of claims 1-10, wherein the puncture mechanism is disposed on the operating table.