Waste sample digestion equipment for clinical medical examination

Abstract

The invention discloses waste sample digestion equipment for clinical medical examination, and relates to the technical field of medical equipment.The waste sample digestion equipment comprises a shell, a motor and a lower millstone are fixedly mounted in the shell, an upper millstone is rotatably connected to the interior of the shell, a digestion disc is fixedly connected to the bottom of the lower millstone, and a medicament bottle is arranged on one side of the shell; the separating mechanism comprises a fixing pipe in transmission connection with a motor driving shaft through a belt, a barrel fixed to the fixing pipe is rotationally connected into the shell, a fixing frame is fixedly connected to the outer portion of the barrel, a discharging control assembly is arranged on the fixing frame, and a spring telescopic rod and a gear fixed to the spring telescopic rod are arranged at the bottom of the fixing frame. The liquid biological sample is centrifugally layered through the rotation of the cylinder body, and each layer of biological tissue is ground and crushed in order, different components in the biological sample are separately crushed and digested, and the components of various biological tissues are matched with a digestion reagent, so that the time required by digestion is shortened, and the digestion rate of a waste sample is increased.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a waste sample digestion device for clinical medical testing. Background Art

[0002] Waste sample digestion mainly refers to an operation to deal with samples remaining after testing (i.e. waste samples) in clinical medical testing or other related fields. Waste samples generally contain various components such as biological tissues, body fluids and drug residues. The purpose of digestion is to decompose the organic components in the waste samples through physical or chemical methods, destroy their complex structures, and convert them into relatively simple, harmless or easier to handle material forms.

[0003] In clinical medicine, the biological tissues in some waste samples are not fully broken, resulting in low efficiency of the digestion reagents in processing the waste samples. Therefore, the waste samples need to be ground during digestion. Traditional waste sample digestion equipment generally grinds and breaks the biological tissues through a motor-driven grinding disk. Since biological sample waste samples often contain multiple components, such as cells, tissue fragments, extracellular matrix, etc., mixed grinding will not only make it difficult to match the corresponding digestion reagents according to the waste sample components when digesting the waste samples with chemical reagents, thereby reducing the efficiency and effect of waste sample digestion, but also different components in the biological samples may react when digested at the same time, resulting in mutual interference, which is not conducive to the digestion of the waste samples. Summary of the invention

[0004] The purpose of the present invention is to propose a waste sample digestion device for clinical medical testing in order to solve the problem that mixed grinding not only makes it difficult to match corresponding digestion reagents according to the components of the waste samples when digesting the waste samples with chemical reagents, but also different components in the biological samples may react and interfere with each other when digested at the same time.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technology: a waste sample digestion device for clinical medical testing: comprising a shell, a motor and a lower grinding disc are fixedly installed inside the shell, an upper grinding disc is rotatably connected inside the shell, a digestion disc is fixedly connected to the bottom of the lower grinding disc, a medicine bottle is arranged on one side of the shell, and further comprising:

[0006] A separation mechanism, the separation mechanism comprises a fixed tube connected to the motor drive shaft through a belt, a cylinder fixed to the fixed tube is rotatably connected inside the shell, a fixed frame is fixedly connected outside the cylinder, a discharge control assembly is arranged on the fixed frame, a spring telescopic rod and a gear fixed to the spring telescopic rod are arranged at the bottom of the fixed frame, an external sleeve is fixedly connected inside the shell, and a toothed plate is fixedly connected to the inner wall of the external sleeve;

[0007] A pneumatic control unit and an impact mechanism for causing longitudinal movement when the upper grinding disc rotates; the pneumatic control unit includes a splash guard fixed to the outside of the upper grinding disc and an air delivery pipe fixed to the bottom of the outer sleeve and equipped with a one-way valve, and a plurality of blades are fixedly connected around the splash guard;

[0008] The rotation of the cylinder causes the internal liquid biological tissue to produce a circular stratification under the action of centrifugal force, and at the same time, the discharge control component intermittently discharges the fixed frame, so that the biological tissue is discharged and ground in sequence from the outer layer to the inner layer.

[0009] As a further description of a waste sample digestion device for clinical medical inspection of the above technology: the discharge control component includes a sealing plate hinged to the inside of the fixed frame, a torsion spring is arranged between the sealing plate and the fixed frame, a slider fixedly connected to the top of the spring telescopic rod is movably connected inside the fixed frame, a top block is fixedly connected to the top of the slider, a push plate is slidably connected inside the slider, and extrusion blocks are fixedly connected to the inner wall of the outer sleeve and the bottom of the gear.

[0010] As a further description of a waste sample digestion device for clinical medical inspection of the above technology: four grooves are equidistantly arranged on the edge of the slider, elastic positioning pins embedded in the grooves on the edge of the slider are installed inside the fixed frame, and the single rotation angle of the slider is ninety degrees.

[0011] As a further description of a waste sample digestion device for clinical medical inspection of the above technology: a diversion frame is fixedly connected to the inner wall of the outer sleeve above the extrusion block, and the biological tissue thrown out by centrifugal force when the fixed frame is opened each time enters the diversion frame.

[0012] As a further description of a waste sample digestion device for clinical medical inspection of the above technology: the impact mechanism includes an outer tube fixed to the bottom of the cylinder, an inner tube fixedly connected to the top of the upper grinding disc and slidably connected to the outer tube, a fixed rod is fixedly connected inside the housing, an inclined block is fixedly connected to the fixed rod, and a convex rod is fixedly connected to the inner wall of the inner tube.

[0013] As a further description of a waste sample digestion device for clinical medical inspection of the above technology: a return spring is arranged between the outer tube and the upper grinding disc, a connecting rod is fixedly connected to the top of the upper grinding disc, a limit sleeve sleeved on the top of the connecting rod is fixedly connected to the bottom of the cylinder, and when the upper grinding disc moves down, it drives the connecting rod to collide with the limit sleeve.

[0014] As a further description of a waste sample digestion device for clinical medical inspection of the above technology: it further includes a foam elimination mechanism, the foam elimination mechanism includes a temporary storage chamber arranged inside the lower grinding disc, a solenoid valve is installed at the bottom of the lower grinding disc, a connecting pipe is fixedly connected to the bottom of the upper grinding disc, and an arc plate is fixedly connected to the outside of the connecting pipe.

[0015] As a further description of a waste sample digestion device for clinical medical examination of the above technology: The top height of the liquid level limiting tube is less than the top surface height of the temporary storage chamber, and the bottom end of the connecting tube extends into the digestion tray and is fixedly connected with a stirring frame.

[0016] As a further description of a waste sample digestion device for clinical medical examination of the above technology: One side of the digestion tray is fixedly connected with a delivery pipe and an output pipe, and several medicine bottles are respectively detachably connected to the respective ends of the delivery pipe, and a flow regulating valve is installed on the delivery pipe.

[0017] As a further description of a waste sample digestion device for clinical medical examination of the above technology: A spiral plate is fixedly connected to the fixing rod at the height position where the fixing tube is located, a top cover is fixedly connected to the end of the medicine bottle, and a piercing head that pierces the top cover and connects the medicine bottle and the delivery pipe is fixedly connected to the end of the delivery pipe.

[0018] In summary, due to adopting the above technology of a waste sample digestion device for clinical medical examination, the beneficial effects of the present invention are:

[0019] In this application, the rotation of the cylinder causes the liquid biological sample to be centrifugally stratified, and the biological tissues of each layer are ground and broken in an orderly manner. Therefore, different components in the biological sample can be broken and digested separately. Compared with the existing mixed grinding and digestion, this design can make various biological tissue components match the digestion reagent, thereby shortening the digestion time required, accelerating the waste sample digestion rate, and at the same time preventing different components in the sample from reacting during digestion, and then ensuring the waste sample digestion effect;

[0020] By intermittently opening the fixed frame, it is avoided that continuous discharging causes cross-contamination between samples of different layers, ensuring that the samples can be discharged in sequence according to the layer order for grinding and digestion, and after each discharging, the remaining samples inside the cylinder are redistributed under the action of centrifugal force, which helps to maintain the accuracy and precision of stratification, and then improves the stratification digestion effect;

[0021] While rotating, the upper grinding disc can move up and down at a fixed frequency, so that the samples in the grinding cavities of the upper grinding disc and the lower grinding disc can be broken by impact, improving the breaking effect of the samples. At the same time, the samples at the contact part between the edge of the upper grinding disc and the lower grinding disc can be ground when the upper grinding disc moves up and down. Compared with the rotational grinding of the upper grinding disc, this kind of grinding applies forces in different directions to the samples, realizes multi-directional grinding, strengthens the grinding effect, and is convenient for subsequent full digestion of the waste sample by the digestion agent;

[0022] The longitudinal movement of the upper grinding disc drives the connecting rod to impact the limit sleeve, which can cause the cylinder to vibrate, promote the uniform distribution of the samples inside the cylinder, avoid local accumulation, and at the same time, the vibration can generate a tiny disturbing force to help break the weak interaction between substances, assist substances with similar densities to stratify, further improve the stratification effect, and is beneficial to the digestion of waste samples.

[0023] The blades rotate with the upper grinding disc to generate a downward air flow. The air flow can not only apply a downward thrust to the samples between the upper grinding disc and the lower grinding disc to assist the sample flow and promote sample grinding, but also discharge and purify the harmful gases generated during the grinding of some biological samples through the air duct, avoiding the direct diffusion of harmful gases to the outside to pollute the environment and even endanger the health of medical staff.

[0024] Through the liquid level limiting tube, the foam in the samples inside the temporary storage chamber can be retained in the temporary storage chamber, and the samples without foam flow out through the liquid level limiting tube. Thus, the air pressure change generated in the temporary storage chamber by the longitudinal movement of the upper grinding disc is used to eliminate the foam floating on the samples inside the temporary storage chamber, avoiding the foam from blocking the contact between the digestion agent and the samples, enabling the digestion agent to react fully with the samples, and accelerating the digestion rate and uniformity. Brief Description of the Drawings

[0025] Figure 1 Shows the overall schematic diagram provided according to an embodiment of the present invention;

[0026] Figure 2 Shows the schematic diagram inside the housing provided according to an embodiment of the present invention;

[0027] Figure 3 Shows the one provided according to an embodiment of the present invention Figure 2 Enlarged view at A in;

[0028] Figure 4 Shows the schematic diagram of the piercing head provided according to an embodiment of the present invention;

[0029] Figure 5 Shows the schematic sectional view of the cylinder provided according to an embodiment of the present invention;

[0030] Figure 6 Shows the one provided according to an embodiment of the present invention Figure 5 Enlarged view at B in;

[0031] Figure 7 Shows the schematic sectional view of the fixed frame provided according to an embodiment of the present invention;

[0032] Figure 8 Shows the schematic diagram of the torsion spring provided according to an embodiment of the present invention;

[0033] Figure 9Shows a schematic cross - sectional view of the lower grinding disc provided according to an embodiment of the present invention;

[0034] Figure 10 Shows a schematic diagram of an inclined block provided according to an embodiment of the present invention;

[0035] Figure 11 Shows an exploded view of the upper grinding disc provided according to an embodiment of the present invention.

[0036] Legend description:

[0037] 10. Outer shell; 11. Motor; 12. Upper grinding disc; 13. Lower grinding disc; 14. Medicine bottle; 15. Delivery pipe; 16. Flow regulating valve; 17. Digestion disc; 18. Output pipe; 19. Spiral plate; 110. Top cover; 111. Piercing head;

[0038] 20. Separation mechanism; 21. Fixed pipe; 22. Cylinder body; 23. Fixed frame; 24. Discharge control assembly; 241. Sealing plate; 242. Torsion spring; 243. Slide block; 244. Top block; 245. Push plate; 246. Extrusion block; 247. Elastic positioning pin; 25. Gear; 26. Spring telescopic rod; 27. Rack; 28. Diversion frame; 29. Outer sleeve;

[0039] 30. Impact mechanism; 31. Limit sleeve; 32. Connecting rod; 33. Outer pipe; 34. Inner pipe; 35. Fixed rod; 36. Inclined block; 37. Convex rod; 38. Return spring;

[0040] 40. Pneumatic control unit; 41. Splash - proof plate; 42. Blade; 43. Air delivery pipe;

[0041] 50. Foam elimination mechanism; 51. Temporary storage chamber; 52. Liquid level limiting pipe; 53. Solenoid valve; 54. Connecting pipe; 55. Arc plate; 56. Stirring frame. Detailed implementation manners

[0042] Next, the technical solution of a waste sample digestion device for clinical medical examination in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0043] As Figures 1-11As shown in the figure, a waste sample digestion device for clinical medical inspection provided by the present invention includes a housing 10. Inside the housing 10, a motor 11 and a lower grinding disc 13 are fixedly installed. An upper grinding disc 12 is rotatably connected inside the housing 10. The relative rotation of the upper grinding disc 12 and the lower grinding disc 13 can grind and crush the waste sample in the grinding chamber between them, so that the sample can be fully digested by the digestion agent. The bottom of the upper grinding disc 12 is conical, which can promote the downward sliding of the sample during grinding and prevent the sample from staying in the grinding chamber. The bottom of the lower grinding disc 13 is fixedly connected to a digestion disc 17. A reagent bottle 14 is provided on one side of the housing 10. The digestion disc 17 is flat, which helps the internal sample to spread out fully, so as to improve the reaction rate between the digestion agent and the waste sample. It also includes:

[0044] A separation mechanism 20, which includes a fixed tube 21 driven by a belt to the drive shaft of the motor 11. Inside the housing 10, a cylinder 22 fixed to the fixed tube 21 is rotatably connected. The top of the cylinder 22 is funnel-shaped and made of transparent material, which is convenient for observing the stratification inside the cylinder 22 and the discharge of each layer of samples. An opening for the sample to enter is provided at the position where the fixed tube 21 contacts the cylinder 22. A fixed frame 23 is fixedly connected to the outside of the cylinder 22. A long and narrow discharge port is provided on the fixed frame 23. When the discharge port is opened, it helps the outermost layer of samples inside the cylinder 22 to be discharged evenly. A discharge control component 24 is provided on the fixed frame 23. A spring telescopic rod 26 and a gear 25 fixed to the spring telescopic rod 26 are provided at the bottom of the fixed frame 23. An outer sleeve 29 is fixedly connected inside the housing 10. A toothed plate 27 is fixedly connected to the inner wall of the outer sleeve 29. The rotation of the cylinder 22 drives the fixed frame 23 and the gear 25 to make a circular motion. During the circular motion of the gear 25, it will engage with the toothed plate 27, and after the gear 25 and the toothed plate 27 are staggered, the gear 25 will deflect by 90 degrees;

[0045] An air control unit 40 and an impact mechanism 30 for making the upper grinding disc 12 move longitudinally when rotating; the air control unit 40 includes a splash guard 41 fixed to the outside of the upper grinding disc 12 and an air delivery pipe 43 fixed to the bottom of the outer sleeve 29 and equipped with a one-way valve. The splash guard 41 is located above the grinding chamber and can block the splashing of the sample in the grinding chamber when the upper grinding disc 12 moves downward. A plurality of blades 42 are fixedly connected to the periphery of the splash guard 41. When the blades 42 and the splash guard 41 rotate with the upper grinding disc 12, the blades 42 push the air downward, promoting the downward flow of the sample through the air flow thrust, and discharging and purifying the harmful gases generated during the grinding of some biological samples through the air delivery pipe 43, avoiding the direct diffusion of harmful gases to the outside;

[0046] The rotation of the cylinder 22 causes the internal liquid biological tissue to produce an annular stratification under the action of centrifugal force. At the same time, the fixed frame 23 discharges intermittently through the discharge control component 24, so that the biological tissue is discharged from the outside to the inside layer by layer for grinding.

[0047] Referring to Figure 6 、 Figure 7 and Figure 8 , the discharge control assembly 24 includes a sealing plate 241 hinged to the inner side of the fixed frame 23. A torsion spring 242 is provided between the sealing plate 241 and the fixed frame 23. Under the elastic force of the torsion spring 242, the sealing plate 241 closes the discharge port of the fixed frame 23. When the sealing plate 241 opens, the outermost biological tissue passes through between the sealing plate 241 and the slider 243 under the action of centrifugal force and is discharged through the discharge port of the fixed frame 23. At this time, the sealing plate 241 is inclined and blocks one side of the fixed frame 23, which can slow down the discharge speed and prevent the non-outermost biological tissue from being discharged and causing sample mixing. A slider 243 fixedly connected to the top end of the spring telescopic rod 26 is movably connected inside the fixed frame 23. A top block 244 is fixedly connected to the top of the slider 243. A push plate 245 is slidably connected inside the slider 243. Extrusion blocks 246 are fixedly connected to the inner wall of the outer sleeve 29 and the bottom of the gear 25. When the two extrusion blocks 246 are staggered, the extrusion block 246 fixed to the gear 25 is pushed upward, driving the spring telescopic rod 26, the slider 243 and the top block 244 to move upward, and then pushing the push plate 245 to push open the sealing plate 241, so that the discharge port of the fixed frame 23 is opened. At least one extrusion block 246 fixed to the fixed frame 23 is provided. Therefore, the discharge port will be opened when the fixed frame 23 rotates at most one week. In order to give the remaining sample enough time to redistribute under the action of centrifugal force after each discharge and avoid mixing between different layers of samples caused by continuous discharge, a protrusion is provided on the side of the top block 244 close to the push plate 245. A groove matching the shape of the top block 244 is provided inside the fixed frame 23. Therefore, only when the top block 244 deflects to a fixed position can it enter the groove to move upward and open the discharge port. At least one rack 27 is also provided. The staggered movement of the gear 25 and the rack 27 can drive the top block 244 to rotate, so that the top block 244 can coincide with the groove through rotation. This design makes it possible to open the discharge port only after the top block 244 deflects to coincide with the groove and the top block 244 moves upward, extending the interval between the openings of the discharge port and giving the sample sufficient time for redistribution. When the top block 244 does not deflect to coincide with the groove, the upward push of the extrusion block 246 can only compress the spring telescopic rod 26, and the slider 243 and the top block 244 cannot move upward. After the extrusion blocks 246 are staggered, the spring telescopic rod 26 elongates and resets through its own elasticity. The vibration generated by the elongation of the spring telescopic rod 26 transmitted to the fixed frame 23 can make the sample distribution around the fixed frame 23 uniform, which is beneficial to the redistribution of the sample.

[0048] Referring to Figure 7, four grooves are equidistantly arranged on the edge of the slider 243, and an elastic positioning pin 247 embedded in the groove on the edge of the slider 243 is installed inside the fixed frame 23. The single rotation angle of the slider 243 is 90 degrees, so that the slider 243 and the top block 244 are reset after rotating four times. The transmission between the gear 25 and the toothed plate 27 will generate errors under the action of inertia. In order to reduce the rotation error, the slider 243 is positioned by the elastic positioning pin 247 embedded in the groove.

[0049] Refer to Figure 5 , a diversion frame 28 located directly above the extrusion block 246 is fixedly connected to the inner wall of the outer sleeve 29. Whenever the two extrusion blocks 246 stagger to open the discharge port, the discharge port is aligned with the diversion frame 28. Therefore, the biological tissue thrown out by centrifugal force each time the discharge port of the fixed frame 23 is opened enters the diversion frame 28, flows downward through the diversion of the diversion frame 28, and the residual biological tissue near the discharge port on the fixed frame 23 is scraped into the diversion frame 28 through the diversion frame 28, preventing the biological tissue from contaminating the gear 25 and the surrounding structures.

[0050] Refer to Figure 5 、 Figure 9 and Figure 10 , the impact mechanism 30 includes an outer tube 33 fixed to the bottom of the cylinder body 22, and an inner tube 34 slidably connected to the outer tube 33 is fixedly connected to the top of the upper grinding disc 12. When the cylinder body 22 drives the outer tube 33 to rotate, the upper grinding disc 12 is driven to rotate and grind through the inner tube 34. A fixed rod 35 is fixedly connected inside the housing 10, a slant block 36 is fixedly connected to the fixed rod 35, and a convex rod 37 is fixedly connected to the inner wall of the inner tube 34. When the inner tube 34 drives the convex rod 37 to rotate, the convex rod 37 will move upward under the support of the slant block 36, driving the upper grinding disc 12 to move upward through the inner tube 34. A return spring 38 is provided between the outer tube 33 and the upper grinding disc 12. At this time, the return spring 38 is compressed. After the convex rod 37 and the slant block 36 are staggered, the stretching elastic force of the return spring 38 drives the upper grinding disc 12 to quickly descend and reset. The up and down movement of the upper grinding disc 12 can provide grinding in different directions for the biological sample, and the grinding and crushing effect can be improved through the downward impact. A connecting rod 32 is fixedly connected to the top of the upper grinding disc 12, and a limit sleeve 31 sleeved on the top end of the connecting rod 32 is fixedly connected to the bottom of the cylinder body 22. When the upper grinding disc 12 moves downward, it drives the connecting rod 32 to collide with the limit sleeve 31, causing the cylinder body 22 to vibrate, promoting the uniform distribution of the samples inside the cylinder body 22, avoiding local accumulation, and at the same time assisting substances with similar densities to stratify.

[0051] Refer to Figure 9 and Figure 11, it further includes a foam elimination mechanism 50. The foam elimination mechanism 50 includes a temporary storage chamber 51 disposed inside the lower grinding disc 13. The biological sample passing through the grinding chamber will flow into the temporary storage chamber 51. An electromagnetic valve 53 is installed at the bottom of the lower grinding disc 13. A connecting pipe 54 is fixedly connected to the bottom of the upper grinding disc 12. An arc-shaped plate 55 is fixedly connected to the outside of the connecting pipe 54. When the upper grinding disc 12 rotates, the arc-shaped plate 55 is driven to rotate through the connecting pipe 54, agitating the biological sample inside the temporary storage chamber 51 to make the foam in the sample float. When the upper grinding disc 12 moves upward, the air pressure in the grinding chamber decreases. When the upper grinding disc 12 moves downward, the air pressure in the grinding chamber increases. The foam floating on the top of the temporary storage chamber 51 will accelerate to break under the action of the pressure change, achieving the effect of foam elimination. The top height of the liquid level limiting pipe 52 is less than the top surface height of the temporary storage chamber 51. After the temporary storage chamber 51 is filled with the biological sample, the sample at the bottom of the temporary storage chamber 51 enters the digestion disc 17 through the liquid level limiting pipe 52, preventing the foam from entering the digestion disc 17. After each layer of sample is ground, the electromagnetic valve 53 is opened to make the sample in the temporary storage chamber 51 enter the digestion disc 17. The bottom end of the connecting pipe 54 extends into the digestion disc 17 and is fixedly connected with a stirring frame 56. After the digestion agent in the reagent bottle 14 enters the digestion disc 17, the stirring frame 56 can stir the sample and the digestion agent as it rotates with the connecting pipe 54, enabling the sample to be fully digested.

[0052] Refer to Figure 2 , Figure 3 and Figure 4 , one side of the digestion disc 17 is fixedly connected with a delivery pipe 15 and an output pipe 18. A number of reagent bottles 14 are respectively detachably connected to the respective ends of the delivery pipe 15. Each reagent bottle 14 contains a digestion agent for digesting different layers of samples in the cylinder 22, making various biological tissue components match the digestion reagent, thereby shortening the digestion time required. A flow regulating valve 16 is installed on the delivery pipe 15 to control the discharge speed of the digestion agent. A spiral plate 19 is fixedly connected to the fixed rod 35 at the height position where the fixed pipe 21 is located. When the fixed pipe 21 rotates, it will rotate relative to the spiral plate 19, thereby cutting the sample at the opening of the fixed pipe 21 through the spiral plate 19 to avoid blockage. The end of the reagent bottle 14 is fixedly connected with a top cover 110. The end of the delivery pipe 15 is fixedly connected with a piercing head 111 that pierces the top cover 110 and connects the reagent bottle 14 with the delivery pipe 15, facilitating the inverted connection of the reagent bottle 14 with the delivery pipe 15 to enable the digestion agent to be transported under the action of gravity.

[0053] Working principle: Pour the waste biological tissue sample into the top of the cylinder 22, so that the sample enters the inside of the cylinder 22 through the opening of the fixed pipe 21. Start the motor 11 to drive the fixed pipe 21 and the cylinder 22 to rotate through the belt. The rotation of the cylinder 22 causes the internal sample to be layered under the action of centrifugal force;

[0054] The rotation of the cylinder body 22 drives the fixed frame 23 and the gear 25 to perform circular motion. When the gear 25 rotates to engage with the toothed plate 27, the gear 25 deflects under the drive of the toothed plate 27, driving the spring telescopic rod 26, the slider 243 and the top block 244 to deflect. After the top block 244 deflects to align with the groove inside the fixed frame 23 for the upward movement of the top block 244, when the extrusion block 246 at the bottom of the gear 25 intersects with the extrusion block 246 fixed on the inner wall of the outer sleeve 29, the gear 25 moves upward, driving the spring telescopic rod 26, the slider 243 and the top block 244 to move upward. The movement of the top block 244 pushes out the push plate 245, opening the sealing plate 241, and the sample inside the cylinder body 22 is thrown out through the discharge port of the fixed frame 23 under the action of centrifugal force;

[0055] The thrown sample enters the space between the diversion frame 28 and the outer sleeve 29, and then enters the grinding cavity between the upper grinding disc 12 and the lower grinding disc 13 along the bottom of the outer sleeve 29. The rotation of the cylinder body 22 drives the upper grinding disc 12 to rotate through the outer tube 33 and the inner tube 34. The rotation of the upper grinding disc 12 grinds the sample, and drives the splash-proof plate 41 and the blade 42 to rotate, discharging the harmful gas generated by grinding to the external gas purification equipment through the gas transmission pipe 43. When the inner tube 34 drives the convex rod 37 to rotate, the convex rod 37 will move upward under the support of the inclined block 36, driving the upper grinding disc 12 to move upward through the inner tube 34. At this time, the return spring 38 is compressed. After the convex rod 37 and the inclined block 36 intersect, the stretching elastic force of the return spring 38 drives the upper grinding disc 12 to quickly descend and reset, enabling the upper grinding disc 12 to move up and down to grind the sample. When the upper grinding disc 12 moves downward, it drives the connecting rod 32 to hit the limit sleeve 31, causing the cylinder body 22 to vibrate, promoting the stratification of substances with similar densities inside the cylinder body 22;

[0056] The ground sample enters the temporary storage chamber 51. After the temporary storage chamber 51 is filled with biological samples, the sample at the bottom of the temporary storage chamber 51 enters the digestion plate 17 through the liquid level limiting pipe 52 to prevent foam from entering the digestion plate 17. When the upper grinding disc 12 rotates, it drives the arc-shaped plate 55 to rotate through the connecting pipe 54, stirring the biological samples inside the temporary storage chamber 51 to make the foam in the sample float up. When the upper grinding disc 12 moves longitudinally, the pressure in the temporary storage chamber 51 changes continuously, and the foam floating on the top of the temporary storage chamber 51 will accelerate to break under the action of the pressure change. After observing through the transparent cylinder body 22 that the outermost sample is completely ground, control the solenoid valve 53 to open to make the sample in the temporary storage chamber 51 enter the digestion plate 17, and open the flow regulating valve 16 to make the digestion agent in the reagent bottle 14 enter the digestion plate 17 to achieve the digestion of the waste sample. After digestion, the waste sample is discharged through the output pipe 18, and then the above operation is repeated again to digest all the waste samples. During the digestion process, the connecting pipe 54 drives the stirring frame 56 to rotate to fully mix the sample and the digestion agent in the digestion plate 17.

[0057] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A waste sample digestion device for clinical medical testing, comprising a housing (10), a motor (11) and a lower grinding disc (13) are fixedly installed inside the housing (10), an upper grinding disc (12) is rotatably connected inside the housing (10), a digestion disc (17) is fixedly connected to the bottom of the lower grinding disc (13), a medicine bottle (14) is arranged on one side of the housing (10), and the characteristics are as follows: Also includes: A separation mechanism (20), the separation mechanism (20) comprising a fixed tube (21) connected to a drive shaft of a motor (11) via a belt, the inside of the housing (10) being rotatably connected to a cylinder (22) fixed to the fixed tube (21), the outside of the cylinder (22) being fixedly connected to a fixed frame (23), a discharge control assembly (24) being arranged on the fixed frame (23), a spring telescopic rod (26) and a gear (25) fixed to the spring telescopic rod (26) being arranged at the bottom of the fixed frame (23), an external sleeve (29) being fixedly connected to the inside of the housing (10), and a toothed plate (27) being fixedly connected to the inner wall of the external sleeve (29); An air control unit (40) and an impact mechanism (30) for causing the upper grinding disc (12) to move longitudinally when rotating; the air control unit (40) comprises a splash plate (41) fixed to the outside of the upper grinding disc (12) and an air delivery pipe (43) fixed to the bottom of the outer sleeve (29) and equipped with a one-way valve, and a plurality of blades (42) are fixedly connected around the splash plate (41); The cylinder (22) rotates so that the liquid biological tissue inside is annularly layered under the action of centrifugal force, and at the same time the fixed frame (23) is intermittently discharged through the discharge control component (24), so that the biological tissue is discharged and ground in sequence from the outer layer to the inner layer.

2. A waste sample digestion device for clinical medical testing according to claim 1, characterized in that: The discharge control assembly (24) includes a sealing plate (241) hinged to the inner side of a fixed frame (23); a torsion spring (242) is provided between the sealing plate (241) and the fixed frame (23); a slider (243) fixed to the top of a spring telescopic rod (26) is movably connected inside the fixed frame (23); a top block (244) is fixedly connected to the top of the slider (243); a push plate (245) is slidably connected to the inside of the slider (243); and an extrusion block (246) is fixedly connected to the inner wall of the outer sleeve (29) and the bottom of the gear (25).

3. A waste sample digestion device for clinical medical testing according to claim 2, characterized in that: The edge of the slider (243) is provided with four grooves at equal intervals, and an elastic positioning pin (247) embedded in the grooves on the edge of the slider (243) is installed inside the fixing frame (23). The single rotation angle of the slider (243) is ninety degrees.

4. A waste sample digestion device for clinical medical testing according to claim 2, characterized in that: The inner wall of the outer sleeve (29) is fixedly connected to a guide frame (28) located directly above the extrusion block (246), and each time the fixed frame (23) is opened, the biological tissue thrown out by centrifugal force enters the guide frame (28).

5. The waste sample digestion equipment for clinical medical testing according to claim 1, characterized in that: The impact mechanism (30) comprises an outer tube (33) fixed to the bottom of the cylinder (22); the top of the upper grinding disc (12) is fixedly connected to an inner tube (34) slidably connected to the outer tube (33); the interior of the outer shell (10) is fixedly connected to a fixing rod (35); the fixing rod (35) is fixedly connected to an inclined block (36); and the inner wall of the inner tube (34) is fixedly connected to a convex rod (37).

6. A waste sample digestion device for clinical medical testing according to claim 5, characterized in that: A return spring (38) is provided between the outer tube (33) and the upper grinding disc (12); a connecting rod (32) is fixedly connected to the top of the upper grinding disc (12); a limiting sleeve (31) sleeved on the top of the connecting rod (32) is fixedly connected to the bottom of the cylinder (22); when the upper grinding disc (12) moves downward, the connecting rod (32) is driven to collide with the limiting sleeve (31).

7. A waste sample digestion device for clinical medical testing according to claim 1, characterized in that: The invention also comprises a froth elimination mechanism (50), wherein the froth elimination mechanism (50) comprises a temporary storage chamber (51) arranged inside the lower grinding disc (13), a solenoid valve (53) is installed at the bottom of the lower grinding disc (13), a connecting pipe (54) is fixedly connected to the bottom of the upper grinding disc (12), and an arc plate (55) is fixedly connected to the outside of the connecting pipe (54).

8. A waste sample digestion device for clinical medical testing according to claim 7, characterized in that: The top height of the liquid level limiting tube (52) is less than the top surface height of the temporary storage chamber (51), and the bottom end of the connecting tube (54) extends into the digestion tray (17) and is fixedly connected to a stirring frame (56).

9. The waste sample digestion equipment for clinical medical testing according to claim 1, characterized in that: A delivery tube (15) and an output tube (18) are fixedly connected to one side of the digestion disk (17), and a plurality of medicine bottles (14) are detachably connected to respective ends of the delivery tube (15), and a flow regulating valve (16) is installed on the delivery tube (15).

10. The waste sample digestion equipment for clinical medical testing according to claim 5, characterized in that: A spiral plate (19) is fixedly connected to the fixing rod (35) at a height position where the fixing tube (21) is located, a top cover (110) is fixedly connected to the end of the medicine bottle (14), and a piercing head (111) is fixedly connected to the end of the delivery tube (15) for piercing the top cover (110) and connecting the medicine bottle (14) and the delivery tube (15).

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