An automatic negative-pressure specimen aspirator collector

Abstract

The present invention provides an automatic negative-pressure specimen suction collector, belonging to the technical field of medical devices, comprising: a first motor, the output end of the first motor is connected with a turntable structure, and at least two channels are arranged on the turntable structure, namely a feeding channel and a transition channel; a second motor, the output end of the second motor is connected with a material distribution structure, and a storage channel is arranged on the material distribution structure, wherein an empty filter disk is stacked in the storage channel; a housing, provided with a feeding pipe, a discharging pipe and a blanking port, and the feeding pipe is communicated with the discharging pipe to form a drainage channel, wherein a bracket is arranged below the blanking port, and the turntable structure is placed inside the housing. The present invention realizes the automatic collection of specimens, and there is no contact throughout the process. On the one hand, it prevents the specimens from being contaminated and ensures the accuracy of subsequent experimental data. On the other hand, the collection of specimens is stable and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices and relates to an automatic negative pressure specimen aspiration collector. Background Art

[0002] When medical staff use a negative pressure suction bottle to aspirate polyps in a patient's body, the suction tube of the suction bottle leads directly into the bottle body. Under the action of negative pressure, sample tissues such as polyps can enter the bottle body directly through the suction tube. However, when it is necessary to examine the polyp tissue, it is very difficult to collect the aspirated polyp tissue from the bottle.

[0003] Patent application CN201921069510.9 discloses a colonoscopy specimen collection device for collecting polyps removed during colonoscopy, including a collection turntable, a bracket, an air inlet joint, an air outlet joint, and a collection net. Among them, 4 to 8 specimen collection chambers are circumferentially distributed on the collection turntable, and the collection net is detachably installed on the specimen collection chamber. The air inlet joint, the specimen collection chamber, the collection net, and the air outlet joint are sequentially connected to form an air flow path; the bracket is hinged to the rotation center of the collection turntable so that when the collection turntable rotates around the bracket, the specimen collection chamber and the collection net in the gas path can be replaced; the air inlet joint communicates with the external interface of the colonoscope, and the air outlet joint is connected to the negative pressure suction tube; through negative pressure, the polyps cut under the colonoscope can be aspirated into the specimen collection chamber and intercepted by the collection net.

[0004] For the above specimen collection device, although it can collect multiple specimens in one operation, the specimens collected in the collection net need to be removed from the specimen collection chamber by medical staff using forceps or fingers. If forceps are used, it is easy to cause unstable clamping and dropping of the specimens. If fingers are used, since the collection net and the specimen collection chamber are nested, it is relatively inconvenient to take. Summary of the Invention

[0005] The purpose of the present invention is to address the above problems in the existing technology and propose an automatic negative pressure specimen aspiration collector that is convenient for collecting specimens and does not contaminate the specimens.

[0006] The purpose of the present invention can be achieved by the following technical solutions: An automatic negative pressure specimen aspiration collector, comprising:

[0007] A first discharging assembly, including a first motor, and the output end of the first motor is connected to a turntable structure, and at least two channels are arranged on the turntable structure, namely a feeding channel and a transition channel. Among them, the feeding direction of the feeding channel and the transition direction of the transition channel are both parallel to the output direction of the output end of the first motor;

[0008] The second discharge assembly includes a second motor, and the output end of the second motor is connected with a material distribution structure, and a storage channel is arranged on the material distribution structure. Among them, empty filter wire meshes are stacked in the storage channel.

[0009] A housing, and a feed pipe and a discharge pipe are respectively arranged on the upper and lower sides of the housing, and a blanking port is arranged on the same side as the discharge pipe. The feed pipe is communicated with the discharge pipe to form a drainage channel. Among them, one end of the feed pipe is the feed end of the drainage material, one end of the discharge pipe is the discharge end of the drainage material, and a bracket is arranged below the blanking port, and a turntable structure is arranged inside the housing.

[0010] In the above-mentioned automatic negative pressure specimen aspiration collector, the number of the feed channels and the transition channels is two, and the two feed channels and the two transition channels are arranged at intervals. Among them, when one of the two feed channels coincides with the storage channel, the other feed channel coincides with the blanking port, and one of the two transition channels coincides with the drainage channel, and the other transition channel is arranged opposite to the drainage channel.

[0011] In the above-mentioned automatic negative pressure specimen aspiration collector, the turntable structure includes:

[0012] An intermediate disk, and two first through grooves and two second through grooves are arranged along the axis direction of the intermediate disk. Among them, the two first through grooves are arranged opposite to each other, the two second through grooves are arranged opposite to each other, and the two first through grooves and the two second through grooves are arranged at intervals. The diameter of the first through groove is larger than that of the second through groove, and the first through groove is used as the feed channel, and the second through groove is used as the transition channel.

[0013] In the above-mentioned automatic negative pressure specimen aspiration collector, the turntable structure further includes:

[0014] Two sealing plates are arranged up and down along the axis direction of the intermediate disk, and the intermediate disk is clamped between the two sealing plates. Among them, each sealing plate is provided with a first through hole and a second through hole, and the second through hole on the sealing plate above the intermediate disk is communicated with the feed pipe, the second through hole on the sealing plate below the intermediate disk is communicated with the discharge pipe, and the first through holes on the two sealing plates on both sides of the intermediate disk are arranged in a staggered manner.

[0015] In the above-mentioned automatic negative pressure specimen aspiration collector, the material distribution structure includes:

[0016] A storage barrel, the storage channel is arranged along the axis direction of the storage barrel, and a convex ring is arranged on the outer side wall of the storage barrel. The convex ring is integrally arranged with the outer side wall of the storage barrel. Among them, two blocking parts are respectively arranged on both sides of the convex ring along the axis direction of the storage barrel, namely a first blocking part and a second blocking part, and both the first blocking part and the second blocking part can move horizontally along the direction close to or away from the storage channel.

[0017] Two rotating plates, namely a first rotating plate and a second rotating plate, are arranged vertically along the axis direction of the storage barrel, and the convex ring is clamped between the first rotating plate and the second rotating plate. Among them, either the first rotating plate or the second rotating plate is connected to the output end of the second motor, and a first guiding portion and a second guiding portion are respectively arranged on the first rotating plate and the second rotating plate, and the first guiding portion is in plug-in fit with the first blocking portion, and the second guiding portion is in plug-in fit with the second blocking portion.

[0018] In the above-mentioned automatic negative-pressure specimen suction collector, the first blocking portion includes two relatively arranged first blocking blocks, and a first supporting portion arranged horizontally and a first plugging portion arranged vertically are provided on the first blocking block. The first supporting portion extends into the storage channel, and the first plugging portion is in plug-in fit with the first guiding portion. The second blocking portion includes two relatively arranged second blocking blocks, and a second supporting portion arranged horizontally and a second plugging portion arranged vertically are provided on the second blocking block. The second supporting portion extends into the storage channel, and the second plugging portion is in plug-in fit with the second guiding portion. Among them, the connection line of the two first blocking blocks is perpendicular to the connection line of the two second blocking blocks.

[0019] In the above-mentioned automatic negative-pressure specimen suction collector, two grooves are respectively arranged on both sides of the convex ring along the axis direction of the storage barrel, namely a first groove and a second groove, and the two first grooves are in corresponding nested fit with the two first blocking blocks, and the two second grooves are in corresponding nested fit with the two second blocking blocks. Among them, the opening directions of the first groove and the second groove are arranged in opposite directions, and the opening direction of the first groove faces the first rotating plate, and the opening direction of the second groove faces the second rotating plate. Both sides of the first groove along the radial line direction of the storage barrel respectively penetrate through the inner and outer side walls of the convex ring, and both sides of the second groove along the radial line direction of the storage barrel respectively penetrate through the inner and outer side walls of the convex ring.

[0020] In the above-mentioned automatic negative-pressure specimen suction collector, the first guiding portion includes two relatively arranged first arc-shaped grooves. Among them, one end of the first arc-shaped groove is close to the inner side of the first rotating plate, and the other end is close to the outer side of the first rotating plate, so that the whole first arc-shaped groove is arranged obliquely, and the first plugging portion is in plug-in fit with the first arc-shaped groove; the second guiding portion includes two relatively arranged second arc-shaped grooves. Among them, one end of the second arc-shaped groove is close to the inner side of the second rotating plate, and the other end is close to the outer side of the second rotating plate, so that the whole second arc-shaped groove is arranged obliquely, and the second plugging portion is in plug-in fit with the second arc-shaped groove. Among them, when the two first arc-shaped grooves and the two second arc-shaped grooves are projected onto the same horizontal plane, the two first arc-shaped grooves and the two second arc-shaped grooves are arranged at intervals and are arranged in a ring shape along the axis direction of the storage barrel.

[0021] In the above-mentioned automatic negative-pressure specimen aspiration collector, a plurality of third arc-shaped grooves are provided on the convex ring, and the plurality of third arc-shaped grooves are arranged in a ring along the axial direction of the storage barrel. Among them, each third arc-shaped groove penetrates both sides of the convex ring along the axial direction of the storage barrel, and a guiding column is nested in each third arc-shaped groove. The axial direction of the guiding column is parallel to the axial direction of the storage barrel, and both ends of the guiding column are respectively connected to the first rotating plate and the second rotating plate through fasteners.

[0022] In the above-mentioned automatic negative-pressure specimen aspiration collector, it further includes a material pushing assembly, and the material pushing assembly includes:

[0023] A motor support plate, with both sides of the open end of the motor support plate respectively connected to the outer side wall of the housing;

[0024] A third motor, installed at the closed end of the motor support plate, and the output end of the third motor extends into the motor support plate. A material pushing cam is connected to the output end of the third motor. Among them, the material pushing cam is provided with a convex part, and the convex part extends in a convex shape along the output direction of the output end of the third motor;

[0025] A push rod, with one end of the push rod connected to a push plate and the other end provided with a strip-shaped groove that is inserted and matched with the convex part;

[0026] A sliding structure, located between the push rod and the outer side wall of the housing, and the sliding structure includes a slide rail and a slider. Among them, the slide rail is connected to the outer side wall of the housing, and the slider is connected to the push rod.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] (1) The automatic negative-pressure specimen aspiration collector provided by the present invention realizes the automatic collection of specimens, and there is no contact throughout the process. On the one hand, it prevents the specimens from being contaminated and ensures the accuracy of subsequent experimental data. On the other hand, the collection of specimens is stable and reliable;

[0029] (2) By setting two feeding channels and two transition channels, when the empty filter mesh tray in one feeding channel is loaded with pathological specimens through one transition channel and discharged from the blanking port, the other feeding channel can just return from the blanking port through the other transition channel to the position coinciding with the storage channel, just forming a cycle, ensuring the sustainable output of pathological specimens and improving work efficiency;

[0030] (3) The first motor is a planetary reduction stepper motor, which can effectively control the rotation angle of the middle disk, avoiding misalignment between the feeding channel and the material storage channel, between the transition channel and the drainage channel, and between the feeding channel and the blanking port; the second motor is a planetary reduction stepper motor, which can effectively control the rotation angles of the two rotating plates, avoiding the sudden excessive rotation angle of the rotating plates from shearing and breaking the insertion parts on the blocking blocks, thereby ensuring the reliability of the equipment operation.

[0031] (4) Through the pushing component, the filter wire mesh tray loaded with pathological specimens below the blanking port can be promptly pushed away, creating space for the next filter wire mesh tray loaded with pathological specimens, avoiding the collision and overturning of the two adjacent filter wire mesh trays loaded with pathological specimens, which may cause the pathological specimens in the filter wire mesh tray to be scattered onto the bracket, resulting in the contamination and invalidation of the pathological specimens. Additionally, it may also cause confusion between the two adjacent pathological specimens. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of an automatic negative pressure specimen aspiration collector according to the present invention.

[0033] Figure 2 is a schematic structural diagram of another perspective of an automatic negative pressure specimen aspiration collector according to the present invention.

[0034] Figure 3 is a schematic partial structural diagram of an automatic negative pressure specimen aspiration collector according to the present invention.

[0035] Figure 4 is an exploded view of the turntable structure in a preferred embodiment of the present invention.

[0036] Figure 5 is a schematic structural diagram of the material distribution structure in a preferred embodiment of the present invention.

[0037] Figure 6 is a schematic partial structural diagram of the pushing component in a preferred embodiment of the present invention.

[0038] Figure 7 is Figure 6 a schematic structural diagram of the shown another perspective.

[0039] In the figure,

[0040] 100, the first discharging component; 110, the first motor; 120, the middle disk; 121, the first through groove; 122, the second through groove; 123, the first meshing teeth; 130, the sealing plate; 131, the first through hole; 132, the second through hole; 140, the first gear;

[0041] 200, second discharging assembly; 210, second motor; 220, storage barrel; 230, convex ring; 231, first groove; 232, second groove; 233, third arc groove; 240, first rotating plate; 241, first arc groove; 250, second rotating plate; 251, second arc groove; 252, second meshing teeth; 260, first blocking block; 261, first supporting portion; 262, first plug-in portion; 270, second blocking block; 271, second supporting portion; 272, second plug-in portion; 280, guide column; 290, second gear;

[0042] 300, filter screen;

[0043] 400, housing; 410, feed pipe; 411, feed end; 420, discharge pipe; 421, discharge end; 430, discharge port;

[0044] 500, bracket;

[0045] 600, pusher assembly; 610, motor support plate; 620, third motor; 630, pusher cam; 631, convex portion; 640, push rod; 641, strip groove; 650, push plate; 660, slide rail; 670, slider. DETAILED DESCRIPTION

[0046] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] like Figures 1 to 7 As shown, the present invention provides an automatic negative pressure specimen suction collector, comprising:

[0049] The first discharging assembly 100 includes a first motor 110, and the output end of the first motor 110 is connected to a turntable structure, and at least two channels are arranged on the turntable structure, namely a feed channel and a transition channel, wherein the feed direction of the feed channel and the transition direction of the transition channel are parallel to the output direction of the output end of the first motor 110;

[0050] The second discharging assembly 200 includes a second motor 210, and the output end of the second motor 210 is connected to a material distribution structure, and a material storage channel is provided on the material distribution structure, wherein an empty filter screen 300 is stacked in the material storage channel;

[0051] A housing 400, with a feed pipe 410 and a discharge pipe 420 respectively arranged on the upper and lower sides of the housing 400, and a blanking port 430 arranged on the same side as the discharge pipe 420. The feed pipe 410 is communicated with the discharge pipe 420 to form a drainage channel. Among them, one end of the feed pipe 410 is the feed end 411 of the drainage material, and one end of the discharge pipe 420 is the discharge end 421 of the drainage material. A bracket 500 is arranged below the blanking port 430, and a turntable structure is built in the housing 400.

[0052] It is worth mentioning that the feed end 411 on the feed pipe 410 is communicated with the surgical position in the patient's body through a pipeline, and the discharge end 421 on the discharge pipe 420 is communicated with a negative pressure aspirator through a pipeline.

[0053] For an automatic negative pressure specimen aspirator provided by the present invention, in its working principle, in the initial state, the storage channel coincides with the feed channel and is arranged vertically. An empty filter disk 300 is temporarily stored in the feed channel. The drainage channel coincides with the transition channel. When it is necessary to collect the pathological specimen in the patient's body, the turntable structure is driven to rotate by the first motor 110, so that the feed channel coincides with the drainage channel, and the transition channel is arranged in a dislocation with the drainage channel. The pathological specimen in the patient's body enters the feed channel through the pipeline via the feed pipe 410 under the action of the negative pressure aspirator and falls on the empty filter disk 300. After the collection of the pathological specimen is completed, then the first motor 110 drives the turntable structure again, so that the feed channel coincides with the blanking port 430. At this time, the feed channel is used as the discharge channel, and the filter disk 300 loaded with the pathological specimen enters the bracket 500 below through the blanking port 430. Then the first motor 110 drives the turntable structure again to make the storage channel coincide with the feed channel again, and at the same time the drainage channel coincides with the transition channel. Finally, the second motor 210 drives the material distribution structure to separate the lowermost filter disk 300 stacked in the storage channel from the other filter disks 300 and enter the feed channel to form a new empty filter disk 300, preparing for the next collection of pathological specimens.

[0054] An automatic negative pressure specimen aspirator provided by the present invention realizes the automatic collection of specimens and is contactless throughout the process. On the one hand, it prevents the specimens from being contaminated and ensures the accuracy of subsequent experimental data. On the other hand, the collection of specimens is stable and reliable.

[0055] It is further pointed out that the number of both the feed channel and the transition channel is two, and the two feed channels and the two transition channels are arranged at intervals. Among them, when one of the two feed channels coincides with the storage channel, the other feed channel coincides with the blanking port 430, and one of the two transition channels coincides with the drainage channel, and the other transition channel is arranged opposite to the drainage channel.

[0056] In this embodiment, by providing two feeding channels and two transition channels, when the empty filter mesh trays 300 in one of the feeding channels are loaded with pathological specimens through one of the transition channels and discharged from the blanking port 430, the other feeding channel can just return from the blanking port 430 through the other transition channel to a position coinciding with the storage channel, just forming a cycle to ensure the sustainable output of pathological specimens and improve work efficiency.

[0057] It is worth mentioning that the caliber of the feeding channel is larger than that of the transition channel, and the two feeding channels are arranged oppositely, and the two transition channels are arranged oppositely. Among them, the included angle between any adjacent feeding channel and transition channel is 90°. This facilitates the positioning of the feeding channel and the transition channel, so that when the first motor 110 drives the turntable structure to rotate and the two feeding channels coincide with the storage channel and the blanking port 430 respectively, one of the transition channels coincides with the drainage channel.

[0058] Preferably, the turntable structure includes:

[0059] An intermediate disk 120, and two first through slots 121 and two second through slots 122 are provided along the axial direction of the intermediate disk 120. Among them, the two first through slots 121 are arranged oppositely, the two second through slots 122 are arranged oppositely, and the two first through slots 121 and the two second through slots 122 are arranged at intervals. The diameter of the first through slot 121 is larger than that of the second through slot 122, and the first through slot 121 is used as the feeding channel, and the second through slot 122 is used as the transition channel.

[0060] It is worth mentioning that in order to improve the sealing effect between the turntable structure and the housing 400, therefore, the turntable structure further includes:

[0061] Two sealing plates 130, which are arranged vertically along the axial direction of the intermediate disk 120, and the intermediate disk 120 is clamped between the two sealing plates 130. Among them, each sealing plate 130 is provided with a first through hole 131 and a second through hole 132, and the second through hole 132 on the sealing plate 130 above the intermediate disk 120 is communicated with the feeding pipe 410, and the second through hole 132 on the sealing plate 130 below the intermediate disk 120 is communicated with the discharging pipe 420. The first through holes 131 on the two sealing plates 130 on both sides of the intermediate disk 120 are arranged in a staggered manner.

[0062] It is worth mentioning that in the initial state, the first through hole 131 on the sealing plate 130 above the middle plate 120 is coaxially arranged with one of the first through grooves 121 on the middle plate 120 to form one of the feeding channels, and the first through hole 131 on the sealing plate 130 below the middle plate 120 is coaxially arranged with the other first through groove 121 to form the other feeding channel. The second through holes 132 on the two sealing plates 130 are coaxially arranged with the second through grooves 122 to form the transition channel. Among them, the number of the first through holes 131 and the second through holes 132 on the sealing plate 130 is one each.

[0063] Preferably, the output end of the first motor 110 is connected with a first gear 140, and a first meshing tooth 123 meshing with the first gear 140 is arranged on the side surface of the middle plate 120. Among them, through the meshing transmission between the first gear 140 and the first meshing tooth 123, the first motor 110 can drive the middle plate 120 to rotate.

[0064] It is worth mentioning that the first motor 110 can be a planetary deceleration stepper motor, which can effectively control the rotation angle of the middle plate 120 to avoid misalignment between the feeding channel and the storage channel, between the transition channel and the diversion channel, and between the feeding channel and the blanking port 430. In addition, since the first meshing tooth 123 is arranged on the side surface of the middle plate 120 and the first meshing tooth 123 is integrally arranged with the middle plate 120. Among them, since the rotation mode of the middle plate 120 is circumferential rotation, it is necessary to cover the entire side surface of the middle plate 120 with the first meshing teeth 123, so that the entire middle plate 120 forms a similar gear disk.

[0065] Preferably, the material distribution structure includes:

[0066] A storage barrel 220, the storage channel is arranged along the axis direction of the storage barrel 220, and a convex ring 230 is arranged on the outer side wall of the storage barrel 220. The convex ring 230 is integrally arranged with the outer side wall of the storage barrel 220. Among them, on both sides of the convex ring 230 along the axis direction of the storage barrel 220, there are respectively provided blocking parts, namely a first blocking part and a second blocking part, and both the first blocking part and the second blocking part can move horizontally in the direction close to or away from the storage channel;

[0067] Two rotating plates, namely a first rotating plate 240 and a second rotating plate 250, are arranged up and down along the axis direction of the storage barrel 220, and the convex ring 230 is clamped between the first rotating plate 240 and the second rotating plate 250. Among them, the first rotating plate 240 or the second rotating plate 250 is connected to the output end of the second motor 210, and a first guiding part and a second guiding part are respectively arranged on the first rotating plate 240 and the second rotating plate 250, and the first guiding part is in plug-in fit with the first blocking part, and the second guiding part is in plug-in fit with the second blocking part.

[0068] It is worth mentioning that the rotating plate directly connected to the output end of the second motor 210 is the active rotating plate, and the rotating plate indirectly connected to the output end of the second motor 210 is the driven rotating plate. Among them, the second motor 210 can drive the active rotating plate and the driven rotating plate to rotate synchronously.

[0069] When the second motor 210 drives the first rotating plate 240 and the second rotating plate 250 to rotate synchronously, the first blocking portion moves along the direction close to the material storage channel under the guidance of the first guiding portion, and at the same time, the second blocking portion moves along the direction away from the material storage channel under the guidance of the second guiding portion. In this way, the lowermost filter mesh plate 300 in the stacked filter mesh plates 300 in the material storage channel loses support and falls into the feeding channel. As the empty filter mesh plate 300, the remaining filter mesh plates 300 will not fall synchronously due to the blocking of the first blocking portion; when the second motor 210 rotates in reverse, the first blocking portion moves along the direction away from the material storage channel under the guidance of the first guiding portion, and at the same time, the second blocking portion moves along the direction close to the material storage channel under the guidance of the second guiding portion, so that the remaining stacked filter mesh plates 300 fall as a whole, and the lowermost filter mesh plate 300 in the remaining filter mesh plates 300 is placed on the second blocking portion, that is, the second blocking portion serves as the support for the remaining filter mesh plates 300, preparing for the output of the next filter mesh plate 300.

[0070] Further preferably, the first blocking portion includes two relatively arranged first blocking blocks 260, and on the first blocking block 260, there is a horizontally arranged first supporting portion 261 and a vertically arranged first inserting portion 262. The first supporting portion 261 extends into the material storage channel, and the first inserting portion 262 is in plug-in fit with the first guiding portion. The second blocking portion includes two relatively arranged second blocking blocks 270, and on the second blocking block 270, there is a horizontally arranged second supporting portion 271 and a vertically arranged second inserting portion 272. The second supporting portion 271 extends into the material storage channel, and the second inserting portion 272 is in plug-in fit with the second guiding portion. Among them, the connection line of the two first blocking blocks 260 is perpendicular to the connection line of the two second blocking blocks 270.

[0071] It is worth mentioning that two grooves are respectively arranged on both sides of the convex ring 230 along the axial direction of the storage barrel 220, namely a first groove 231 and a second groove 232. The two first grooves 231 are correspondingly nested and matched with the two first blocking blocks 260, and the two second grooves 232 are correspondingly nested and matched with the two second blocking blocks 270. Among them, the opening directions of the first groove 231 and the second groove 232 are arranged in opposite directions. The opening direction of the first groove 231 faces the first rotating plate 240, and the opening direction of the second groove 232 faces the second rotating plate 250. The two sides of the first groove 231 along the radial direction of the storage barrel 220 respectively penetrate through the inner and outer side walls of the convex ring 230, and the two sides of the second groove 232 along the radial direction of the storage barrel 220 respectively penetrate through the inner and outer side walls of the convex ring 230.

[0072] Further preferably, the first guiding portion includes two relatively arranged first arc-shaped grooves 241. Among them, one end of the first arc-shaped groove 241 is close to the inner side of the first rotating plate 240, and the other end is close to the outer side of the first rotating plate 240, so that the whole first arc-shaped groove 241 is obliquely arranged, and the first inserting portion 262 is inserted and matched with the first arc-shaped groove 241; the second guiding portion includes two relatively arranged second arc-shaped grooves 251. Among them, one end of the second arc-shaped groove 251 is close to the inner side of the second rotating plate 250, and the other end is close to the outer side of the second rotating plate 250, so that the whole second arc-shaped groove 251 is obliquely arranged, and the second inserting portion 272 is inserted and matched with the second arc-shaped groove 251. Among them, when the two first arc-shaped grooves 241 and the two second arc-shaped grooves 251 are projected onto the same horizontal plane, the two first arc-shaped grooves 241 and the two second arc-shaped grooves 251 are arranged at intervals and are annularly arranged along the axial direction of the storage barrel 220.

[0073] It is worth mentioning that when the second motor 210 drives the two rotating plates to rotate synchronously, the first inserting portion 262 in the two first blocking blocks 260 moves from the outer side close to the first rotating plate 240 to the inner side close to the first rotating plate 240, that is, the first blocking block 260 moves along the direction close to the storage channel. At this time, the second inserting portion 272 in the two second blocking blocks 270 moves from the inner side close to the second rotating plate 250 to the outer side close to the second rotating plate 250, that is, the second blocking block 270 moves along the direction away from the storage channel; conversely, when the second motor 210 drives the two rotating plates to rotate synchronously in the reverse direction, the first inserting portion 262 in the two first blocking blocks 260 moves from the inner side close to the first rotating plate 240 to the inner side close to the first rotating plate 240, that is, the first blocking block 260 moves along the direction away from the storage channel, and the second inserting portion 272 in the two second blocking blocks 270 moves from the inner side close to the second rotating plate 250 to the outer side close to the second rotating plate 250, that is, the second blocking block 270 moves along the direction close to the storage channel.

[0074] Preferably, a plurality of third arc-shaped grooves 233 are provided on the convex ring 230, and the plurality of third arc-shaped grooves 233 are arranged in a ring along the axial direction of the material storage barrel 220. Among them, each third arc-shaped groove 233 penetrates both sides of the convex ring 230 along the axial direction of the material storage barrel 220, and a guide post 280 is nested in each third arc-shaped groove 233. The axial direction of the guide post 280 is parallel to the axial direction of the material storage barrel 220, and both ends of the guide post 280 are respectively connected to the first rotating plate 240 and the second rotating plate 250 through fasteners.

[0075] Further, it is pointed out that the output end of the second motor 210 is connected to a second gear 290, and a second engaging tooth 252 meshing with the second gear 290 is provided on the outer side wall of the first rotating plate 240 or the outer side wall of the second rotating plate 250. Among them, through the meshing transmission between the second gear 290 and the second engaging tooth 252, the second motor 210 can drive the two rotating plates to rotate synchronously.

[0076] It is worth mentioning that since the first insertion portion 262 is in insertion fit with the first arc-shaped groove 241, the second insertion portion 272 is in insertion fit with the second arc-shaped groove 251, and the arc lengths of the first arc-shaped groove 241 and the second arc-shaped groove 251 are certain, the rotation strokes of the first rotating plate 240 and the second rotating plate 250 are limited. Therefore, the second engaging tooth 252 only needs to cover a part of the outer side wall of the first rotating plate 240 or the outer side wall of the second rotating plate 250.

[0077] Similarly, the second motor 210 can also be a planetary reduction stepping motor, which can effectively control the rotation angles of the two rotating plates, avoid the sudden excessive rotation angle of the rotating plates that causes the shear fracture of the insertion portions on the blocking blocks, and thus ensure the reliability of the equipment operation.

[0078] In addition, considering the positional relationship between the first rotating plate 240 and the second rotating plate 250, generally, the second engaging tooth 252 is arranged on the outer side wall of the second rotating plate 250, so as to reduce the height of the second gear 290.

[0079] Preferably, the automatic negative pressure specimen aspirator collector further includes a material pushing assembly 600. Through the material pushing assembly 600, the filter wire mesh tray 300 loaded with pathological specimens below the material dropping port 430 can be pushed away in time, so as to create space for the next filter wire mesh tray 300 loaded with pathological specimens, and avoid the collision and overturning of the two adjacent filter wire mesh trays 300 loaded with pathological specimens, which may cause the pathological specimens in the filter wire mesh tray 300 to be scattered onto the bracket 500, resulting in the contamination and invalidation of the pathological specimens. In addition, it will also cause confusion between the two adjacent pathological specimens.

[0080] Further preferably, the material pushing assembly 600 includes:

[0081] A motor support plate 610, which is U-shaped, and both sides of the open end of the motor support plate 610 are respectively connected to the outer side wall of the housing 400;

[0082] A third motor 620, which is installed at the closed end of the motor support plate 610, and the output end of the third motor 620 extends into the motor support plate 610, and a material pushing cam 630 is connected to the output end of the third motor 620. Wherein, a convex portion 631 is provided on the material pushing cam 630, and the convex portion 631 extends in a convex shape along the output direction of the output end of the third motor 620;

[0083] A push rod 640, one end of the push rod 640 is connected with a push plate 650, and the other end is provided with a strip-shaped groove 641 which is in plug-in fit with the convex portion 631;

[0084] A sliding structure, which is located between the push rod 640 and the outer side wall of the housing 400, and the sliding structure includes a slide rail 660 and a slider 670. Wherein, the slide rail 660 is connected to the outer side wall of the housing 400, and the slider 670 is connected to the push rod 640.

[0085] It is worth mentioning that the third motor 620 drives the material pushing cam 630 to rotate. Since the convex portion 631 on the material pushing cam 630 is inserted into the strip-shaped groove 641, the convex portion 631 can move in the strip-shaped groove 641, thereby converting the rotational motion of the material pushing cam 630 into a linear motion of the push rod 640. Since the push plate 650 and the push rod 640 are connected, the linear motion of the push plate 650 is realized through the push rod 640, and further the filter wire mesh plate 300 below the material dropping port 430 is pushed away.

[0086] It should be noted that in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, provided that they can be implemented by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be implemented, such a combination of technical solutions shall be considered non-existent and not within the scope of protection required by the present invention.

[0088] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic negative pressure specimen suction collector, characterized in that: include: A first discharging assembly includes a first motor, and an output end of the first motor is connected to a turntable structure, and at least two channels are arranged on the turntable structure, namely a feed channel and a transition channel, wherein a feed direction of the feed channel and a transition direction of the transition channel are both parallel to an output direction of the output end of the first motor; The second discharging assembly includes a second motor, and the output end of the second motor is connected to a material distribution structure, and a material storage channel is provided on the material distribution structure, wherein an empty filter screen disc is stacked in the material storage channel; The housing comprises a feed pipe and a discharge pipe, and a material drop opening arranged on the same side of the discharge pipe, and the feed pipe is connected with the discharge pipe to form a drainage channel, wherein one end of the feed pipe is a feed end of the drainage object, and one end of the discharge pipe is a discharge end of the drainage object, and a bracket is arranged below the material drop opening, and the turntable structure is built into the housing; In the initial state, the storage channel and the feed channel overlap and are arranged up and down. The filter mesh disc stacked on the bottom layer in the storage channel is separated from the other filter mesh discs and enters the feed channel, so that unloaded filter mesh discs are temporarily stored in the feed channel, wherein the feed end on the feed pipe is connected to the surgical position in the patient's body through a pipeline, and the discharge end on the discharge pipe is connected to the negative pressure suction device through a pipeline.

2. The automatic negative pressure specimen suction collector according to claim 1, characterized in that: The number of feed channels and transition channels is two each, and the two feed channels and the two transition channels are arranged at intervals, wherein when one of the two feed channels coincides with the storage channel, the other feed channel coincides with the material drop port, and one of the two transition channels coincides with the drainage channel, and the other transition channel is arranged opposite to the drainage channel.

3. The automatic negative pressure specimen suction collector according to claim 1, characterized in that: The turntable structure includes: An intermediate disk is provided with two first through grooves and two second through grooves along the axial direction of the intermediate disk, wherein the two first through grooves are arranged opposite to each other, the two second through grooves are arranged opposite to each other, and the two first through grooves and the two second through grooves are arranged at intervals, the diameter of the first through groove is larger than the diameter of the second through groove, and the first through groove is used as a feed channel and the second through groove is used as a transition channel.

4. The automatic negative pressure specimen suction collector according to claim 3, characterized in that: The turntable structure also includes: Two sealing plates are arranged up and down along the axial direction of the intermediate disk, and the intermediate disk is clamped between the two sealing plates, wherein each sealing plate is provided with a first through hole and a second through hole, and the second through hole on the sealing plate located above the intermediate disk is connected to the feed pipe, and the second through hole on the sealing plate located below the intermediate disk is connected to the discharge pipe, and the first through holes on the two sealing plates located on both sides of the intermediate disk are staggered.

5. An automatic negative pressure specimen suction collector according to any one of claims 1 to 4, characterized in that: The material distribution structure includes: A material storage barrel, wherein the material storage channel is arranged along the axial direction of the material storage barrel, and a convex ring is arranged on the outer side wall of the material storage barrel, and the convex ring is arranged integrally with the outer side wall of the material storage barrel, wherein blocking parts are arranged on both sides of the convex ring along the axial direction of the material storage barrel, respectively, a first blocking part and a second blocking part, and the first blocking part and the second blocking part can both move horizontally in a direction close to or away from the material storage channel; Two rotating plates, namely the first rotating plate and the second rotating plate, are arranged up and down along the axial direction of the storage barrel, and the convex ring is clamped between the first rotating plate and the second rotating plate, wherein the first rotating plate or the second rotating plate is connected to the output end of the second motor, and the first guiding part and the second guiding part are respectively arranged on the first rotating plate and the second rotating plate, and the first guiding part is plug-fitted with the first blocking part, and the second guiding part is plug-fitted with the second blocking part.

6. The automatic negative pressure specimen suction collector according to claim 5, characterized in that: The first blocking portion includes two first blocking blocks arranged opposite to each other, and the first blocking block has a horizontally arranged first supporting portion and a vertically arranged first plug-in portion, the first supporting portion extends into the material storage channel, and the first plug-in portion is plug-fitted with the first guide portion, and the second blocking portion includes two second blocking blocks arranged opposite to each other, and the second blocking block has a horizontally arranged second supporting portion and a vertically arranged second plug-in portion, the second supporting portion extends into the material storage channel, and the second plug-in portion is plug-fitted with the second guide portion, wherein the connecting line of the two first blocking blocks is vertically arranged to the connecting line of the two second blocking blocks.

7. The automatic negative pressure specimen suction collector according to claim 6, characterized in that: Two grooves are arranged on both sides of the convex ring along the axial direction of the storage barrel, which are the first groove and the second groove respectively, and the two first grooves are correspondingly nested with the two first blocking blocks, and the two second grooves are correspondingly nested with the two second blocking blocks, wherein the opening directions of the first groove and the second groove are arranged in opposite directions, and the opening direction of the first groove is toward the first rotating plate, and the opening direction of the second groove is toward the second rotating plate, and the inner and outer side walls of the convex ring are respectively opened on both sides of the first groove along the radial direction of the storage barrel, and the inner and outer side walls of the convex ring are respectively opened on both sides of the second groove along the radial direction of the storage barrel.

8. The automatic negative pressure specimen suction collector according to claim 5, characterized in that: The first guide portion includes two first arc-shaped grooves that are relatively arranged, wherein one end of the first arc-shaped groove is close to the inner side of the first rotating plate, and the other end is close to the outer side of the first rotating plate, so that the entire first arc-shaped groove is arranged obliquely, and the first plug-in portion is plug-matched with the first arc-shaped groove; the second guide portion includes two second arc-shaped grooves that are relatively arranged, wherein one end of the second arc-shaped groove is close to the inner side of the second rotating plate, and the other end is close to the outer side of the second rotating plate, so that the entire second arc-shaped groove is arranged obliquely, and the second plug-in portion is plug-matched with the second arc-shaped groove, wherein, when the two first arc-shaped grooves and the two second arc-shaped grooves are projected onto the same horizontal plane, the two first arc-shaped grooves and the two second arc-shaped grooves are spaced apart from each other and are arranged in a ring shape along the axial direction of the storage barrel.

9. The automatic negative pressure specimen suction collector according to claim 5, characterized in that: A plurality of third arc-shaped grooves are arranged on the convex ring, and the plurality of third arc-shaped grooves are arranged in a ring shape along the axial direction of the material storage barrel, wherein each third arc-shaped groove passes through both sides of the convex ring along the axial direction of the material storage barrel, and a guide column is nested in each third arc-shaped groove, the axial direction of the guide column is parallel to the axial direction of the material storage barrel, and the two ends of the guide column are respectively connected to the first rotating plate and the second rotating plate by fasteners.

10. The automatic negative pressure specimen suction collector according to claim 1, characterized in that: Also included is a pusher assembly, and the pusher assembly includes: A motor support plate, two sides of the opening end of the motor support plate are respectively connected to the outer side walls of the shell; The third motor is mounted on the closed end of the motor support plate, and the output end of the third motor extends into the motor support plate, and a push cam is connected to the output end of the third motor, wherein a convex portion is provided on the push cam, and the convex portion extends along the output direction of the output end of the third motor in a convex shape; A push rod, one end of which is connected to a push plate, and the other end of which is provided with a strip-shaped groove that is plugged and matched with the convex part; The sliding structure is located between the push rod and the outer side wall of the shell, and the sliding structure includes a sliding rail and a sliding block, wherein the sliding rail is connected to the outer side wall of the shell, and the sliding block is connected to the push rod.

Images