Pathological specimen fixing device for whole-course closed quantitative liquid injection
The pathological specimen fixation device with fully enclosed quantitative injection solves the problems of inaccurate fixative addition and contamination in existing technologies, and achieves an efficient and safe specimen fixation process.
Patent Information
- Application Number
- CN202520384305.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing methods for adding fixatives to pathological specimens are difficult to control in terms of quantity, and are prone to overflow or volatilization, which affects the fixation effect and causes pollution to the environment and human body. In addition, the operation is cumbersome.
A pathological specimen fixation device with fully closed quantitative injection is designed. The device achieves accurate calculation and automatic addition of fixative through a quantitative injection device, a measuring unit, a control device, and a pumping device, ensuring a closed injection process.
It improves the accuracy and efficiency of calculating the amount of fixative, reduces the risk of leakage and contamination, and enhances the specimen fixation effect and ease of operation.
Smart Images
Figure CN223870398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of specimen fixation devices, and in particular to a pathological specimen fixation device with fully sealed quantitative injection. Background Technology
[0002] After being obtained during surgery or biopsy, pathological specimens should be immediately or as soon as possible placed in an appropriate amount of fixative to ensure proper fixation. Fixative effectively fixes tissues and cells, maintaining their original morphology and composition. Fixation of pathological specimens requires the addition of a suitable amount of fixative. Currently, the addition of fixative is generally done manually, requiring repeated small additions, which is cumbersome and difficult to control, easily resulting in insufficient or excessive fixative. Excessive fixative can easily overflow from the specimen storage container. Alternatively, an open, electrically operated injection method can be used, where the fixative is in direct contact with the environment, posing risks of evaporation, splashing, or contamination, potentially leading to fixative deterioration and affecting the specimen's fixation effectiveness. Furthermore, as a volatile liquid, fixative exposed to the external environment can cause pollution and harm to humans and the environment. Therefore, to ensure the occupational safety of medical personnel, it is necessary to develop a fully enclosed, quantitative injection device for specimen fixation, achieving completely sealed injection.
[0003] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content
[0004] This invention addresses the problems mentioned above, where existing pathological specimen fixatives are typically added manually or via an open, electrically operated injection system. This makes it difficult to control the amount of fixative added, and the process is not completely sealed, posing risks of liquid evaporation, splashing, or contamination. The fixative is also prone to deterioration, affecting the fixation effect and causing pollution and harm to humans and the environment. This invention proposes a pathological specimen fixation device with fully sealed, quantitative injection.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A pathological specimen fixation device with fully closed quantitative injection includes a quantitative injection device, a fixative container located at the inlet end of the quantitative injection device, and a specimen container located at the outlet end of the quantitative injection device. The specimen container is provided with a measuring part to obtain the specimen's dimensional parameters. The quantitative injection device includes a syringe, a control device located on the syringe, and a pumping device. The syringe has an injection chamber, and an injection channel communicating with the injection chamber is provided between the syringe and the fixative container. The specimen container is located at the outlet end of the syringe. The control device drives the pumping device to move relative to the syringe, pumping the liquid in the fixative container into the specimen container through the injection channel and the injection chamber.
[0007] The pathological specimen fixation device for fully sealed quantitative injection as described above includes a specimen container comprising a bottom wall and a front side wall disposed on one side of the bottom wall. The measuring part includes a first scale, a second scale, and a third scale. The first and second scales are disposed perpendicularly to each other on the front side wall, and the second and third scales are disposed perpendicularly to each other on the bottom wall. The second scale is disposed at the intersection of the front side wall and the bottom wall. The specimen container is a transparent container.
[0008] The pathological specimen fixation device for fully closed quantitative injection as described above includes a specimen container with an opening at the top, a sealing structure at the opening, and an inlet on one side of the opening. The sealing structure is used to close the opening, and the inlet is detachably and sealed to the outlet end of the syringe via a connector.
[0009] The pathological specimen fixation device for fully closed quantitative injection as described above includes a control device comprising an electrically connected electronic control module and an operation module. The electronic control module includes a circuit board and a communication unit electrically connected to the circuit board. The communication unit has a communication connection with the pumping device. The communication unit triggers the pumping device to pump the liquid in the fixation container through the injection channel and injection chamber into the specimen container.
[0010] As described above, the pathological specimen fixation device for fully closed quantitative injection includes an electronic control module that further comprises a microcontroller and a data acquisition unit electrically connected to the circuit board. The microcontroller includes a volume calculation unit and an injection calculation unit. The data acquisition unit is used to acquire the specimen's size parameters. The volume calculation unit is used to determine the specimen volume based on the specimen's size parameters. The injection calculation unit is used to determine the injection volume according to injection rules, which include a preset ratio between the specimen volume and the injection volume.
[0011] The pathological specimen fixation device for fully closed quantitative injection as described above includes an operation module comprising an operation panel located outside the syringe, a display screen and a button unit located on the operation panel, the display screen comprising an input display area and an output display area, the input display area comprising a length input area, a width input area and a height input area, and the output display area comprising a specimen volume output area and an injection volume output area.
[0012] The pathological specimen fixation device for fully closed quantitative injection as described above, wherein the button unit includes a function button group and a number button group, wherein the function button group includes at least a power switch button and an input position adjustment button.
[0013] The pathological specimen fixation device for fully closed quantitative injection as described above includes a syringe shell and a piston. The syringe shell has an injection chamber, and the piston is movably placed in the injection chamber. The piston is connected to the pumping device, which drives the piston to move within the injection chamber. The syringe shell also has a needle at the end and an inlet connector communicating with the injection chamber. The inlet connector is sealed to the injection channel.
[0014] The pathological specimen fixation device for fully closed quantitative injection as described above includes a pumping device comprising a drive motor and a transmission assembly connected to the drive motor. The piston is located at the end of the transmission assembly away from the drive motor. The drive motor is electrically connected to the control device. The drive motor drives the transmission assembly to generate transmission, and the transmission assembly drives the piston to move within the injection chamber.
[0015] The pathological specimen fixation device for fully closed quantitative injection as described above, the pumping device further includes an angle sensor, the angle sensor is connected to the drive motor or the transmission assembly, and the angle sensor is electrically connected to the control device.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. In the specimen fixation device of this utility model, the operator can directly observe the size parameters of the specimen through the measuring part of the specimen container and input the size parameters into the quantitative injection device. The control device of the quantitative injection device directly calculates the specimen volume and then directly calculates the appropriate injection volume based on the specimen volume. No manual calculation is required, which improves the accuracy and efficiency of the fixative dosage calculation, facilitates the quantitative use of fixative for specimen fixation, improves the efficiency of fixative injection, and thus improves the specimen fixation efficiency.
[0018] 2. The quantitative injection device automatically calculates the injection volume through the control device, and then controls the pumping device to directly draw an appropriate amount of fixative from the fixative container and inject it into the specimen container through the injection channel and syringe. This eliminates the need for operators to manually add fixative, achieving quantitative injection control during the specimen fixation process and reducing the risks of fixative leakage, overflow, volatilization, and environmental pollution.
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the pathological specimen fixation device of this utility model;
[0021] Figure 2 This is a perspective view of the specimen container of this utility model;
[0022] Figure 3 This is a perspective view of the specimen container of this utility model under light.
[0023] Figure 4 for Figure 1 Sectional view A-A in the middle;
[0024] Figure 5 This is a connection diagram of the electronic control module of this utility model;
[0025] Figure 6 for Figure 1 Enlarged view of part B in the image. Detailed Implementation
[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0029] like Figure 1 As shown in Figure 6, this utility model provides a pathological specimen fixation device with fully closed quantitative injection, including a quantitative injection device 1, a fixative container 2, and a specimen container 3. The fixative container 2 is located at the inlet end of the quantitative injection device 1, and the specimen container 3 is located at the outlet end of the quantitative injection device 1. The specimen container 3 can hold the specimen, and the fixative in the fixative container 2 is delivered to the specimen container 3 by the quantitative injection device 1 to fix the specimen. The specimen container 3 is provided with a measuring part 31, through which the specimen is measured. The dimensional parameters are specified; the quantitative injection device 1 includes a syringe 11, a control device 12 disposed on the syringe 11, and a pumping device 13. The specimen container 3 is disposed at the liquid outlet of the syringe 11, and the pumping device 13 is disposed at the end of the syringe 11 away from the specimen container 3. The syringe 11 has an injection chamber 111, and an injection channel 14 communicating with the injection chamber 111 is provided between the syringe 11 and the fixative container 2. The control device 12 drives the pumping device 13 to move relative to the syringe 11. The liquid in the fixative container 2 is pumped into the specimen container 3 through the injection channel 14 and injection chamber 111. During the actual specimen fixation process, the control device 12 is electrically connected to the pumping device 13. The fixative container 2 contains fixative solution. The operator places the specimen in the specimen container 3, vents and seals the specimen container 3, and seals it to the outlet of the syringe 11, thus connecting the specimen container 3, injection chamber 111, injection channel 14, and fixative container 2. The operator can then... The measuring part 31 of the specimen container 3 directly observes and obtains the size parameters of the specimen to be fixed, including the length, width and height of the specimen. Subsequently, the control device 12 determines the injection volume according to the size parameters of the specimen, and controls the pumping device 13 to move relative to the syringe 11 according to the injection volume, so that the pumping device 13 draws liquid equal to the injection volume from the fixation liquid container 2 and delivers it to the specimen container 3 through the syringe 11, thereby completing the quantitative injection of the quantitative injection device 1.
[0030] In the specimen fixation device of this utility model, the operator can directly observe the size parameters of the specimen through the measuring part 31 of the specimen container 3 and input the size parameters into the quantitative injection device 1. The control device 12 of the quantitative injection device 1 directly calculates the specimen volume and then calculates the appropriate injection volume based on the specimen volume. This eliminates the need for manual calculation, improves the accuracy and efficiency of the fixative dosage calculation, facilitates the quantitative use of fixative for specimen fixation, and increases the efficiency of fixative injection, thereby improving the specimen fixation efficiency. In addition, after the quantitative injection device 1 automatically calculates the injection volume through the control device 12, it controls the pumping device 13 to directly extract an appropriate amount of fixative from the fixative container 2 and inject it into the specimen container 3 through the injection channel 14 and the syringe 11. This eliminates the need for the operator to manually add fixative, achieving quantitative injection control during the specimen fixation process and reducing the risk of fixative leakage, overflow evaporation, and environmental pollution.
[0031] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the specimen container 3 includes a bottom wall 32 and a front side wall 33 disposed on one side of the bottom wall 32. The measuring part 31 includes a first scale 311, a second scale 312, and a third scale 313. The first scale 311 and the second scale 312 are perpendicularly disposed on the front side wall 33, and the second scale 312 and the third scale 313 are perpendicularly disposed on the bottom wall 32. The second scale 312 is disposed at the intersection of the front side wall 33 and the bottom wall 32. The specimen container 3 is a transparent container. In this embodiment, the specimen container 3 includes at least one of a specimen bag and a cylindrical container bottle. Optionally, the specimen container 3 includes a bottom wall 32, and a front side wall 33, a rear side wall 36, a left side wall 37, and a right side wall 38 disposed on the upper part of the bottom wall 32. The front sidewall 33 and rear sidewall 36 are arranged opposite to each other, and the left sidewall 37 and right sidewall 38 are arranged opposite to each other and located between the front sidewall 33 and rear sidewall 36. The front sidewall 33, rear sidewall 36, left sidewall 37 and right sidewall 38 enclose the cavity of the specimen container 3. At least one of the first scale 311, second scale 312 and third scale 313 is provided, and the first scale 311, second scale 312 and third scale 313 are arranged perpendicular to each other in the specimen container 3. When processing the specimen, the specimen can be placed at the angle between the first scale 311, second scale 312 and third scale 313. The length, width and height of the specimen can be directly observed through the transparent wall of the specimen container 3 to obtain the size parameters of the specimen.
[0032] In some alternative embodiments, when the specimen container 3 is a specimen bag, the specimen bag, when opened, forms the front side wall 33, rear side wall 36, left side wall 37, right side wall 38 and bottom wall 32.
[0033] In some alternative embodiments, the first scale 311, the second scale 312 and the third scale 313 may be directly printed or adhered to the outer wall of the specimen container 3.
[0034] Further optional, such as Figure 2 , 3 As shown in Figure 6, the specimen container 3 has an opening at the top, a sealing structure 35 at the opening, and a liquid inlet 34 on one side of the opening. The sealing structure 35 is used to close the opening. In some optional embodiments, the opening is formed by the front sidewall 33, rear sidewall 36, left sidewall 37, and right sidewall 38. The opening is located at the top of the container cavity and allows the specimen to pass through. The sealing structure 35 is provided at the opening. The sealing structure 35 includes at least one sealing strip. The sealing strip can be a sliding snap-on sealing strip or a press-to-close sealing strip. Opening or closing the opening through the sealing strip helps to improve the sealing performance of the specimen container 3, prevent liquid leakage and internal contamination, and thus improve the fixation quality of the specimen tissue. Further optionally, the liquid inlet 34... The inlet 34 is detachably and sealed to the outlet end of the syringe 11 via a connector 4, which can be fixedly installed at the inlet 34. When the operator places the specimen into the specimen container 3, the specimen container 3 is vented through the opening and sealed by the sealing structure 35. Then, the connector 4 is used to seal the specimen container 3 to the outlet end of the syringe 11, so that the specimen container 3 is connected to the injection chamber 111 and isolated from the outside. Optionally, the connector 4 can be a Luer connector, quick-connect connector, etc. The Luer connector and quick-connect connector have a built-in sealing structure, which can ensure that the specimen container 3 and the syringe 11 are sealed together, preventing leakage of fixative solution at the inlet 34 during injection and thus preventing environmental pollution, ensuring the safety of the operator and the external environment.
[0035] In some alternative embodiments, a one-way valve is provided in the liquid passage formed between the specimen container 3, the injection chamber 111, the injection channel 14, and the fixative container 2, located between the inlet 34 of the specimen container 3 and the injection chamber 111. The one-way valve is used to unidirectionally transport the liquid in the injection chamber 111 to the specimen container 3 to prevent backflow of liquid and contamination of the fixative in the fixative container 2. Optionally, the one-way valve is located at the inlet 34; or the one-way valve is located inside the syringe 11; or a connector 4 with a built-in anti-backflow structure is directly selected.
[0036] In some alternative embodiments, after the specimen container 3 containing fixative is separated from the syringe 11, further sealing the inlet 34 or providing a removable cap at the inlet 34 to close the inlet 34 can improve the sealing performance of the specimen container 3, further prevent fixative leakage, and ensure the safety of operators and the external environment.
[0037] On the other hand, such as Figure 1 As shown, the control device 12 is located outside the syringe 11. The control device 12 includes an electrically connected electronic control module 121 and an operation module 122. The electronic control module 121 includes a circuit board 1211 and a communication unit 12111 electrically connected to the circuit board 1211. The communication unit 12111 has a communication connection with the pumping device 13. The communication unit 12111 triggers the pumping device 13 to pump the liquid in the fixative container 2 through the injection channel 14 and the injection chamber 111 into the specimen container 3. In order to simplify the circuit connection of the specimen fixation device, the communication unit 12111 is preferably a wireless communication unit, including one of a WIFI module, a Bluetooth module, and a ZigBee module, which can control the pumping device 13 to perform the above-mentioned injection action. By cooperating with the communication unit 12111 and the circuit board 1211 to control the pumping device 13 to perform quantitative injection action, the operator can control the injection process from a safe distance, avoid contact with the fixative, and improve the safety of fixative injection.
[0038] Furthermore, the electronic control module 121 also includes a microcontroller 12112 and a data acquisition unit 12113 electrically connected to the circuit board 1211. The data acquisition unit 12113 and the communication unit 12111 are electrically connected to the microcontroller 12112 via the circuit board 1211. The microcontroller 12112 includes a volume calculation unit 121121 and an injection calculation unit 121122. The data acquisition unit 12113 is used to acquire the specimen's size parameters. The volume calculation unit 121121 is used to determine the specimen volume based on the specimen's size parameters. The injection calculation unit 121122 is used to determine the injection volume according to injection rules, which include... The specimen volume and the injection volume have a preset ratio, for example, the preset ratio is 1:10, meaning the volume ratio of the specimen volume to the injection volume is 1:10. This preset ratio can be adjusted according to different specimen types and fixative types. In practical applications, after the operator measures the size parameters of the specimen through the measuring unit 31, the size parameters are input to the data acquisition unit 12113. The data acquisition unit 12113 transmits the size parameter signal to the microcontroller 12112. After receiving the size parameter signal, the microcontroller 12112 triggers the volume calculation unit 121121 to calculate the specimen volume based on the size parameters. Subsequently, the microcontroller 12112... 112 triggers the injection calculation unit 121122 to calculate the injection volume based on the specimen volume. Then, the microcontroller 12112 converts the injection volume into a control signal and sends this control signal to the pumping device 13, triggering the pumping device 13 to extract an amount of fixative equal to the injection volume from the fixative container 2 and deliver it to the specimen container 3. Through the coordinated operation of the data acquisition unit 12113 and the volume calculation unit 121121 and injection calculation unit 121122 in the microcontroller 12112, the quantitative injection device 1 can automatically calculate the appropriate amount of fixative based on the specimen's size parameters and control the pumping device 13 to deliver the fixative to the specimen container 3. This container 3 provides quantitative liquid injection, which helps to improve the accuracy of liquid injection calculation and injection efficiency. In this embodiment, the microcontroller 12112 integrates the volume calculation unit 121121 and the liquid injection calculation unit 121122. The volume calculation unit 121121 can calculate the specimen volume according to the received size parameters and a preset volume formula. The size parameters include the length, width, and height of the specimen. The preset volume formula includes at least one or more volume formulas for spheres, cylinders, cubes, and cones. For example, if the shape of the specimen to be fixed is similar to that of a cube, the volume formula of a cube can be used, i.e., specimen volume = length × width × height, to estimate the volume of the specimen to be fixed.The injection calculation unit 121122 uses the following injection rule: injection volume = specimen volume × preset ratio. Optionally, the microcontroller 12112 can be an Arduino development board or an STM32 series microcontroller, etc. The data acquisition unit 12113 includes one of a button input module, a touch screen input module, and a serial communication input module. The circuit board 121 can be an integrated circuit board. The operating principles of the circuit board 121, the communication unit 12111, and the data acquisition unit 12113, as well as the volume calculation unit 121121 and the injection calculation unit 121122, can all be implemented using existing technologies, and will not be elaborated here.
[0039] In other alternative embodiments, such as Figure 1 and Figure 6As shown, the operation module 122 includes an operation panel 1221 located outside the syringe 11, a display screen 1222 located on the operation panel 1221, and a button unit 1223. The display screen 1222 includes an input display area 12221 and an output display area 12222. The input display area 12221 includes a length input area 12221a, a width input area 12221b, and a height input area 12221c. The length input area 12221a is used to display the length dimension parameter of the specimen, the width input area 12221b is used to display the width dimension parameter of the specimen, and the height input area 12221c... Used to display the height and dimension parameters of the specimen; optionally, the input display area 12221 and the output display area 12222 are arranged adjacently in the display screen 1222, and the length input area 12221a, width input area 12221b, and height input area 12221c are arranged sequentially along the vertical direction of the display screen 1222; the output display area 12222 includes a specimen volume output area 12222a and an injection volume output area 12222b, the specimen volume output area 12222a is used to display the specimen volume parameter, and the injection volume output area 12222b is used to display the injection volume parameter; optionally, the... The specimen volume output area 12222a and the injection volume output area 12222b are arranged sequentially along the vertical or horizontal direction of the display screen 1222. In this embodiment, the electronic control module 121 is fixedly mounted on the back of the operation panel 1221 through a housing to form an integrated control device 12. The control device 12 is installed outside the syringe 11 for easy operation by the operator and to reduce the size of the quantitative injection device 1. The display screen 1222 and the button unit 1223 are electrically connected to the circuit board 1211, and the button unit 1223 allows the operator to input the volume. The specimen's size parameters are displayed via a button unit 1223 electrically connected to a data acquisition unit 12113 via a circuit board 1211. The button unit 1223 and the data acquisition unit 12113 work together to enable the microcontroller 12112 to acquire the specimen's size parameters. It should be noted that the operating principle of the button unit 1223 and the data acquisition unit 12113 can be achieved using existing technology, which will not be elaborated here. The display screen 1222 displays the input display area 12221 and the output display area 12222 through backlighting, so that the operator can directly observe whether the data is incorrect.Optionally, the operation panel 1221 and the electronic control module 121 form an integrated control device 12. The control device 12 can be fixedly installed on the outside of the syringe housing 112; or, the control device 12 is hinged to the outside of the syringe housing 112, and the control device 12 can rotate around the hinge axis toward or away from the syringe housing 112 under external force to improve the operator's ease of operation. Furthermore, the control device 12 is also provided with a charging module electrically connected to the circuit board 1211. The charging module includes a charging port and a rechargeable battery. The charging port is used to connect to an external power source to charge the rechargeable battery. After being charged, the rechargeable battery can supply power to the control device 12.
[0040] Furthermore, such as Figure 6 As shown, the key unit 1223 includes a function key group 12231 and a numeric key group 12232. The function key group 12231 includes at least a power button 122311 and an input position adjustment button 122312. The function key group 12231 and the numeric key group 12232 are respectively disposed on one side of the display screen 1222. The power button 122311 is used to control the opening and closing of the operation panel 1221. The input position adjustment button 122312 includes at least up and down input position adjustment control to facilitate the operator to switch between different input display areas 12221 and input different parameters. The numeric key group 12232 includes at least the numbers 0 to 9. Numeric keypads; In practical applications, after the operator inputs the specimen size parameters to be fixed through the numeric keypad group 12232 and the input position adjustment button 122312, pressing the switch button 122311 will allow the microcontroller 12112 to control the volume calculation unit 121121 and the injection calculation unit 121122 to calculate the specimen volume and the injection volume sequentially. The specimen volume and the injection volume are displayed in the specimen volume output area 12222a and the injection volume output area 12222b, respectively. It should be noted that the display screen 1222 can be an existing integrated display screen 1222, and the display content and page design can be adjusted according to the actual situation. Optionally, the button unit 1223 can be a mechanical push button or a touch button.
[0041] In other embodiments, the numeric keypad group 12232 further includes a numeric reset key and / or a delete key, wherein the numeric reset key is used to clear the entered numbers with one key, and the delete key is used to delete the entered numbers.
[0042] On the other hand, such as Figure 1As shown, the syringe 11 includes a syringe housing 112 and a piston 113. The syringe housing 112 has an injection chamber 111. The piston 113 is movably placed within the injection chamber 111. The piston 113 is connected to the pumping device 13, which drives the piston 113 to move within the injection chamber 111. The syringe housing 112 also has a needle 1121 at its end and an inlet connector 1122 communicating with the injection chamber 111. The control device 12 is configured with... On one side of the inlet connector 1122, the needle 1121 is sealed to the connector 4 at the inlet 34, and the inlet connector 1122 is sealed to the injection channel 14. The injection channel 14 is formed through a pipeline and sealed to the inlet connector 1122, thus forming a completely closed injection path between the fixative container 2, the injection channel 14, the injection chamber 111, and the specimen container 3 to prevent fixative leakage and evaporation, ensuring the safety of operators and the external environment; when the piston 113 is in operation... When the pumping device 13 moves away from the needle 1121 within the injection chamber 111, a negative pressure is generated within the injection chamber 111, causing the fixative in the fixative container 2 to flow into the injection chamber 111 through the injection channel 14. When the piston 113 moves closer to the needle 1121 within the injection chamber 111 via the pumping device 13, the piston 113 pumps the liquid in the injection chamber 111 into the specimen container 3 through the needle 1121, completing the process. In this embodiment, the inlet 34 of the specimen container 3 is connected to the needle 1121, and the inlet 34 is detachably connected to the needle 1121 via the connector 4. When the specimen container 3 is connected to the needle 1121, the connector 4 seals the assembly gap between the needle 1121 and the specimen container 3 to prevent leakage during injection. In addition, the syringe 11 has a shape similar to that of a common syringe, which helps to reduce the volume of the quantitative injection device 1.
[0043] In some alternative embodiments, one end of the injection channel 14 extends into the fixative container 2, and the injection channel 14 and the fixative container 2 are detachably sealed to prevent fixative leakage. For example, the end of the injection channel 14 is provided with a pipe interface, and a sealing ring is provided between the pipe interface and the fixative container 2. A one-way valve is provided in the injection channel 14, which is used to guide the liquid in the fixative container 2 to the injection chamber 111 in a one-way manner to prevent the liquid from flowing back into the fixative container 2.
[0044] In some alternative embodiments, the fixative container 2 is provided with a level switch, a control valve, and an alarm electrically connected to the circuit board 1211. The control valve is located at the outlet end of the fixative container 2 and controls the opening and closing of the injection channel 14. The level switch is located inside the fixative container 2 and has a preset low level. When the liquid level in the fixative container 2 is at or below the preset low level, the control valve is closed by the circuit board to limit the liquid discharge from the fixative container 2. At the same time, the alarm is activated by the circuit board to remind the operator to add new fixative to the fixative container 2.
[0045] In some alternative embodiments, the pathological specimen fixation device further includes a fixing seat for fixing the specimen container 3, thereby fixing the specimen container 3 to prevent the specimen container 3 from detaching from the needle 1121 during the injection process; in some alternative embodiments, after the needle 1121 is inserted into the inlet 34 of the specimen container 3, the connection between the needle 1121 and the specimen container 3 can be clamped by a fixing clamp.
[0046] Furthermore, such as Figure 4 As shown, the pumping device 13 includes a drive motor 131 and a transmission assembly 132 connected to the drive motor 131. The piston 113 is located at the end of the transmission assembly 132 away from the drive motor 131. The drive motor 131 is electrically connected to the control device 12. The drive motor 131 drives the transmission assembly 132 to generate transmission, and the transmission assembly 132 drives the piston 113 to move within the injection chamber 111. The transmission assembly 132 converts the rotational motion of the drive motor 131 into the linear motion of the piston 113. Specifically, the drive motor 131 is electrically connected to the communication unit 12111 and the microcontroller 12112 via the circuit board 1211, so that the microcontroller 12112 can control the start and stop, speed, and rotation angle of the drive motor 131, and the transmission component 132 can control the movement stroke and the number of reciprocating movements of the piston 113 in the injection chamber 111, so that the pumping device 13 can perform a quantitative injection action according to the calculated injection volume, ensuring that the injection volume and the specimen volume are matched, and improving the specimen fixation effect.
[0047] Optionally, the transmission assembly 132 includes a push rod 1322 and a transmission rod 1321 disposed between the push rod 1322 and the drive motor 131. The push rod 1322 has an inner cavity 13221 facing the transmission rod 1321. The piston 113 is provided at the end of the transmission rod 1321. The transmission rod 1321 and the piston 113 extend into the inner cavity 13221. A transmission structure 1323 is provided between the transmission rod 1321 and the push rod 1322. The drive motor 131 drives the transmission rod 1321 to rotate, and the transmission structure 1323 drives the piston 113 to move along the injection chamber 111, thereby injecting liquid into the specimen container 3 through the pumping device 13. Optionally, the transmission structure... 1323 is configured as a meshing transmission structure 1323, which includes a first meshing surface 13231 on the push rod 1322 and a second meshing surface 13232 on the transmission rod 1321. The first meshing surface 13231 and the second meshing surface 13232 are correspondingly connected. The push rod 1322 is provided with a bushing 13230 through which the transmission rod 1321 passes. The first meshing surface 13231 is provided on the inner wall of the bushing 13230, and the second meshing surface 13232 is provided on the outer wall of the transmission rod 1321 and extends to the end of the transmission rod 1321. The bushing 13230 separates the transmission rod 1321 from the inner wall of the push rod 1322 to ensure that the transmission rod 1321 rotates smoothly.
[0048] In some alternative embodiments, the pumping device 13 further includes a base 133, the drive motor 131 is fixedly mounted on the base 133 via a first bracket 1331, and the syringe housing 112 is fixedly mounted on the base 133 via a second bracket 1332.
[0049] Furthermore, the pumping device 13 also includes an angle sensor, which is connected to the drive motor 131 or the transmission assembly 132, and is electrically connected to the control device 12. That is, the angle sensor is electrically connected to the microcontroller 12112 through the circuit board 1211. The angle sensor detects the rotation angle of the drive motor 131 or the transmission assembly 132 in real time, and adjusts the action of the drive motor 131 based on the feedback from the angle sensor, such as adjusting the speed or rotation angle of the drive motor 131, so as to precisely control the number of reciprocating movements and the stroke of the piston 113 in the injection chamber 111, thereby achieving quantitative and efficient injection of the fixative.
[0050] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.
Claims
1. A pathological specimen fixation device with fully closed, quantitative fluid injection, characterized in that, It includes a quantitative injection device (1), a fixed liquid container (2) located at the liquid inlet end of the quantitative injection device (1), and a specimen container (3) located at the liquid outlet end of the quantitative injection device (1). The specimen container (3) is provided with a measuring part (31) to obtain the size parameters of the specimen; The quantitative injection device (1) includes a syringe (11), a control device (12) disposed in the syringe (11) and a pumping device (13). The syringe (11) is provided with an injection chamber (111). An injection channel (14) communicating with the injection chamber (111) is provided between the syringe (11) and the fixed liquid container (2). The specimen container (3) is disposed at the liquid outlet of the syringe (11). The control device (12) drives the pumping device (13) to move relative to the syringe (11), pumping the liquid in the fixative container (2) into the specimen container (3) through the injection channel (14) and the injection chamber (111).
2. The pathological specimen fixation device with fully closed quantitative injection as described in claim 1, characterized in that, The specimen container (3) includes a bottom wall (32) and a front side wall (33) disposed on one side of the bottom wall (32). The measuring part (31) includes a first scale (311), a second scale (312) and a third scale (313). The first scale (311) and the second scale (312) are disposed perpendicularly to each other on the front side wall (33). The second scale (312) and the third scale (313) are disposed perpendicularly to each other on the bottom wall (32). The second scale (312) is disposed at the intersection of the front side wall (33) and the bottom wall (32). The specimen container (3) is a transparent container.
3. A pathological specimen fixation device with fully closed quantitative injection as described in claim 1 or 2, characterized in that, The specimen container (3) is provided with an opening at the top, a sealing structure (35) at the opening, and an inlet (34) on one side of the opening. The sealing structure (35) is used to close the opening, and the inlet (34) is detachably and sealed to the outlet end of the syringe (11) through a connector (4).
4. The pathological specimen fixation device for fully closed quantitative injection as described in claim 1, characterized in that, The control device (12) includes an electrical control module (121) and an operation module (122) that are electrically connected. The electrical control module (121) includes a circuit board (1211) and a communication unit (12111) that is electrically connected to the circuit board (1211). The communication unit (12111) has a communication connection with the pumping device (13). The communication unit (12111) triggers the pumping device (13) to pump the liquid in the fixed liquid container (2) into the specimen container (3) through the injection channel (14) and the injection chamber (111).
5. The pathological specimen fixation device for fully closed quantitative injection as described in claim 4, characterized in that, The electronic control module (121) further includes a microcontroller (12112) and a data acquisition unit (12113) electrically connected to the circuit board (1211). The microcontroller (12112) is provided with a volume calculation unit (121121) and a liquid injection calculation unit (121122). The data acquisition unit (12113) is used to acquire the size parameters of the specimen; The volume calculation unit (121121) is used to determine the specimen volume based on the specimen's size parameters; The injection calculation unit (121122) is used to determine the injection volume according to the injection rules, which include a preset ratio between the specimen volume and the injection volume.
6. The pathological specimen fixation device for fully closed quantitative injection as described in claim 4, characterized in that, The operation module (122) includes an operation panel (1221) located on the outside of the syringe (11), a display screen (1222) located on the operation panel (1221), and a button unit (1223). The display screen (1222) includes an input display area (12221) and an output display area (12222). The input display area (12221) includes a length input area (12221a), a width input area (12221b), and a height input area (12221c). The output display area (12222) includes a specimen volume output area (12222a) and an injection volume output area (12222b).
7. A pathological specimen fixation device for fully closed quantitative injection as described in claim 6, characterized in that, The key unit (1223) includes a function key group (12231) and a number key group (12232). The function key group (12231) includes at least a power button (122311) and an input position adjustment button (122312).
8. The pathological specimen fixation device for fully closed quantitative injection as described in claim 1, characterized in that, The syringe (11) includes a syringe housing (112) and a piston (113). The syringe housing (112) has an injection chamber (111). The piston (113) is movably placed in the injection chamber (111). The piston (113) is connected to the pumping device (13), and the pumping device (13) drives the piston (113) to move in the injection chamber (111). The syringe housing (112) is also provided with a needle (1121) at the end and an inlet pipe (1122) communicating with the injection chamber (111), the inlet pipe (1122) being sealed to the injection channel (14).
9. A pathological specimen fixation device with fully closed quantitative injection as described in claim 8, characterized in that, The pumping device (13) includes a drive motor (131) and a transmission assembly (132) that is connected to the drive motor (131). The piston (113) is located at the end of the transmission assembly (132) away from the drive motor (131). The drive motor (131) is electrically connected to the control device (12). The drive motor (131) drives the transmission assembly (132) to generate transmission, and the transmission assembly (132) drives the piston (113) to move in the injection chamber (111).
10. A pathological specimen fixation device for fully closed quantitative injection as described in claim 9, characterized in that, The pumping device (13) further includes an angle sensor, which is connected to the drive motor (131) or the transmission assembly (132) and is electrically connected to the control device (12).