Separable manual negative pressure specimen suction collector

Abstract

The invention provides a separable manual negative pressure specimen suction collector, which belongs to the technical field of medical apparatus and instruments, and comprises: a driving mechanism comprising a shell provided with a first accommodating cavity and a second accommodating cavity; the driving handle is mounted on one side of the first shell; the transmission structure is installed in the first containing cavity, one end of the transmission structure is connected with the driving handle, and the other end of the transmission structure is provided with a driving part; the material collecting mechanism is detachably connected into the second containing cavity, the material collecting mechanism comprises a second shell internally provided with a third containing cavity, and the second shell is provided with a drainage channel, a collecting channel and a discharging channel; and the switching plate is installed in the third containing cavity, the switching plate is connected with the driving part in a clamped mode, the horizontal movement of the switching plate is driven through the horizontal movement of the driving part, and one of the drainage channel, the collecting channel and the discharging channel is made to be in a working state. The material collecting mechanism can be completely separated from the driving mechanism, and independent cleaning, soaking and disinfection of the material collecting mechanism are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices and relates to a specimen suction collector, in particular to a detachable manual negative pressure specimen suction collector. Background Art

[0002] When medical staff use a vacuum suction bottle to aspirate polyps from a patient's body, they insert the suction tube directly into the bottle. Under the influence of negative pressure, the polyps and other tissue samples can pass through the suction tube directly into the bottle. However, when the polyps need to be examined, collecting the aspirated tissue from the bottle is difficult.

[0003] The patent application (CN202411708894.X) discloses a negative pressure specimen suction collection device, comprising: a suction seat, which is installed on the object to be connected, and is provided with a accommodating cavity, a first interface, and a second interface that are interconnected on the suction seat; a filter, which is detachably connected to the accommodating cavity and has no connection with the suction seat, and the filter includes a carrier part, and is provided with a through hole on the carrier part, wherein a filter part is nested in the through hole, and the first interface, the filter part and the second interface form a main channel for drainage; a connecting pipe, one end of which is connected to the first interface through a three-way valve, and the other end is connected to the second interface through a three-way joint, wherein the three-way valve, the connecting pipe and the three-way joint form an auxiliary channel for drainage, and a valve switch is provided on the three-way valve.

[0004] The patent application (CN202510138229.X) discloses a manual negative pressure specimen suction collector, which belongs to the field of medical device technology, and includes: a first shell, on which a drainage channel and a first notch are provided; a turntable, located in the first shell, and provided with a first through-hole portion and a second through-hole portion, wherein, through the rotation of the turntable, the first through-hole portion and the second through-hole portion alternately correspond to the positions of the drainage channel and the first notch; a handle, one end of which is located outside the first shell, and the other end extends into the first shell and is rotatably connected to the first shell, and is provided with a first transmission portion; a rotating member, located in the first shell, one end of which is connected to the turntable, and the other end of which is provided with a second transmission portion cooperating with the first transmission portion; a filter mesh plate, which can be detachably installed in the second through-hole portion.

[0005] Although both of the aforementioned comparative documents can reliably achieve timely specimen collection, proper specimen preservation, and avoid specimen inactivation, in the aforementioned comparative documents, the drainage channel for body fluid transmission, the collection channel for specimen collection, and the switching structure for switching between the drainage channel and the collection channel are all integrated into the device, and the device needs to be cleaned, soaked, and disinfected after use. If the entire device is cleaned, soaked, or disinfected directly, the cleaning and disinfecting solutions used in the cleaning, soaking, and disinfection processes are corrosive, which can damage the switching structure and reduce the service life of the entire device. Summary of the Invention

[0006] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a detachable manual negative pressure specimen suction collector that can extend the service life of the equipment.

[0007] The purpose of the present invention can be achieved through the following technical solutions: A detachable manual negative pressure specimen suction collector, comprising:

[0008] The drive mechanism includes a first housing having a first accommodating cavity therein, a second accommodating cavity being formed by being recessed along one side of the first housing toward an opposite side thereof, the first accommodating cavity and the second accommodating cavity being connected via a through slot; a drive handle mounted on one side of the first housing and located outside the first housing; a transmission structure mounted in the first accommodating cavity, one end of the transmission structure being connected to the drive handle, and a drive unit being provided at the other end of the transmission structure, wherein the drive unit extends from the first accommodating cavity through the through slot into the second accommodating cavity, and the reciprocating swing of the drive handle in a vertical plane drives the drive unit to reciprocate in a horizontal plane;

[0009] The material receiving mechanism is detachably connected to the second accommodating chamber, and the material receiving mechanism includes a second shell with a built-in third accommodating chamber, and the second shell is provided with a drainage channel for transporting body fluids during patient surgery, a collection channel for receiving specimens, and a discharge channel for outputting the filter screen for which the specimen collection has been completed; the switching plate is installed in the third accommodating chamber, and the switching plate is engaged with the driving part, and the horizontal movement of the driving part drives the horizontal movement of the switching plate, so that one of the drainage channel, the collection channel and the discharge channel is in a working state, wherein a preset angle is formed between the plane where the switching plate is located when it moves and the plane where the driving handle is located when it swings.

[0010] In the above-mentioned detachable manual negative pressure specimen suction collector, the second shell is provided with a liquid inlet channel and a liquid outlet channel along the drainage direction of the body fluid, and a filter feed hole is provided on the same side of the second shell as the liquid inlet channel, a body fluid drainage hole and a filter receiving hole for receiving the filter are provided on the switching plate, and a specimen discharge hole is provided on the same side of the second shell as the liquid outlet channel; wherein, the body fluid drainage hole is connected with the liquid inlet channel and the liquid outlet channel to form a drainage channel; the filter receiving hole is connected with the liquid inlet channel and the liquid outlet channel to form a collection channel; the filter receiving hole is connected with the specimen discharge hole to form a discharge channel.

[0011] In the above-mentioned detachable manual negative pressure specimen suction collector, a first sealing structure and a second sealing structure are provided in the third accommodating chamber, and the switching plate is clamped between the first sealing structure and the second sealing structure, wherein the first sealing structure is close to the side where the liquid inlet channel is located, the second sealing structure is close to the side where the liquid outlet channel is located, and the first sealing structure is provided with a first transition hole connected to the liquid inlet channel and a second transition hole connected to the filter feed hole, and the second sealing structure is provided with a third transition hole connected to the liquid outlet channel and a fourth transition hole connected to the specimen discharge hole; or a sealing structure is provided in the third accommodating chamber, and the switching plate is inserted into the sealing structure, wherein the upper side of the sealing structure is close to one side of the liquid inlet channel, the lower side of the sealing structure is close to one side of the liquid outlet channel, and the upper side of the sealing structure is provided with a first transition hole connected to the liquid inlet channel and a second transition hole connected to the filter feed hole, and the lower side of the sealing structure is provided with a third transition hole connected to the liquid outlet channel and a fourth transition hole connected to the specimen discharge hole.

[0012] In the above-mentioned detachable manual negative pressure specimen suction collector, the first sealing structure includes a first sealing plate, which is embedded in a first limiting cavity provided on the same side of the third accommodating chamber as the liquid inlet channel, and the second sealing structure includes a second sealing plate, which is embedded in a second limiting cavity provided on the same side of the third accommodating chamber as the liquid outlet channel, wherein the depth of the first limiting cavity is less than the thickness of the first sealing plate, the depth of the second limiting cavity is less than the thickness of the second sealing plate, and the first transition hole and the second transition hole are provided on the first sealing plate, and the third transition hole and the fourth transition hole are provided on the second sealing plate; or the first sealing structure includes a first sealing plate and a first sealing ring, and the first sealing plate is embedded in the third accommodating chamber The first sealing ring is embedded in the first limiting concave cavity provided on the same side as the liquid inlet channel, and the first sealing ring is embedded in the first annular groove provided on the first sealing plate or the third accommodating chamber on the same side as the liquid inlet channel. The second sealing structure includes a second sealing plate and a second sealing ring. The second sealing plate is embedded in the second limiting concave cavity provided on the third accommodating chamber on the same side as the liquid inlet channel, and the second sealing ring is embedded in the second annular groove provided on the second sealing plate or the third accommodating chamber on the same side as the liquid outlet channel, wherein the depth of the first limiting concave cavity is less than the thickness of the first sealing plate, the depth of the second limiting concave cavity is less than the thickness of the second sealing plate, and the first transition hole and the second transition hole are provided on the first sealing plate, and the third transition hole and the fourth transition hole are provided on the second sealing plate.

[0013] In the above-mentioned detachable manual negative pressure specimen suction collector, a material receiving plate is provided on the second shell, and the side of the material receiving plate facing the drainage channel is recessed downward to form a specimen receiving trough, which serves as a specimen receiving channel, wherein one end of the specimen receiving trough is located below the specimen discharge hole, and the other end of the specimen receiving trough extends outward and is in an exposed state, and a material scoop is provided in the specimen receiving trough.

[0014] In the above-mentioned detachable manual negative pressure specimen suction collector, a sealing plate is arranged between the switching plate and the second sealing plate, and the sealing plate is driven to move along the length direction of the specimen receiving trough by a sliding structure, wherein, when the sliding structure pushes the sealing plate to move, the filter receiving hole on the switching plate is connected to the fourth transition hole on the second sealing plate; when the sealing plate is reset, the channel between the filter receiving hole on the switching plate and the fourth transition hole on the second sealing plate is blocked.

[0015] In the above-mentioned detachable manual negative pressure specimen suction collector, the sliding structure includes a movable support block, and the movable support block is provided with an installation cavity along the moving direction of the sealing plate, and the side of the installation cavity facing the material picking spoon is closed, and the side of the installation cavity facing the groove wall of the specimen receiving trough is open, wherein one side of the sealing plate is clamped between the switching plate and the second sealing plate, and one side of the sealing plate is inserted into the movable support block; an elastic member, one end of the elastic member is connected to the closed end of the installation cavity, and the other end of the elastic member is connected to the side of the specimen receiving trough opposite to the open end of the installation cavity.

[0016] In the above-mentioned detachable manual negative pressure specimen suction collector, the specimen receiving trough and the driving handle are located on the same side of the negative pressure specimen suction collector.

[0017] In the above-mentioned detachable manual negative pressure specimen suction collector, bosses are respectively provided on both sides of the opening end of the second accommodating chamber, and guide grooves are respectively provided on the opposite sides of the two bosses, wherein the guide grooves are plug-fitted with the second shell, and rotating blocks are respectively provided on the two bosses, and the connection between the receiving mechanism and the driving mechanism is released or locked by rotating the rotating blocks.

[0018] In the above-mentioned detachable manual negative pressure specimen suction collector, the transmission structure includes a first bevel gear connected to the driving handle, a second bevel gear meshed with the first bevel gear, and a synchronous pulley structure connected to the second bevel gear, wherein a slide rail is provided on the cavity wall of the first accommodating cavity, and one end of the driving part is connected to the slide rail, and the other end of the driving part is connected to the synchronous pulley structure, the synchronous pulley structure includes a plurality of synchronous wheels, and the plurality of synchronous wheels are respectively located at various corners of the first accommodating cavity, wherein the plurality of synchronous wheels are connected by a synchronous belt, and one of the plurality of synchronous wheels is coaxially arranged with the second bevel gear and connected to both ends of the transmission shaft, and the diameter of the synchronous wheel coaxially arranged with the second bevel gear is larger than the diameter of any other synchronous wheel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention provides a detachable manual negative pressure specimen suction collector. Since the material receiving mechanism can be completely separated from the driving mechanism, the material receiving mechanism can be cleaned, soaked and disinfected separately, thereby preventing the driving mechanism from being corroded or damaged by the cleaning liquid or disinfectant, thereby extending the service life of the driving mechanism.

[0021] (2) In this embodiment, the driving handle and the driving part are connected by a transmission structure, and the existence of the transmission structure increases the force arm between the two, so that a smaller driving force can be used to promote the movement of the switching plate, which is more labor-saving.

[0022] (3) The specimen receiving trough and the driving handle are set on the same side to facilitate the operation of medical staff and save time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a detachable manual negative pressure specimen suction collector of the present invention.

[0024] Figure 2 It is a structural schematic diagram of a material receiving mechanism in a preferred embodiment of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the material receiving mechanism from another perspective in a preferred embodiment of the present invention.

[0026] Figure 4 yes Figure 3 A cross-sectional view of the cutting line AA in the material receiving mechanism shown.

[0027] Figure 5 It is a structural diagram of the driving mechanism in a preferred embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the partial structure of the driving mechanism in a preferred embodiment of the present invention.

[0029] In the figure,

[0030] 100, driving mechanism; 110, first housing; 111, first accommodating chamber; 112, second accommodating chamber; 113, through-slot; 1131, first groove; 1132, second groove; 114, boss; 1141, guide groove; 115, rotating block; 120, driving handle; 130, transmission structure; 131, first bevel gear; 132, second bevel gear; 133, slide rail; 134, synchronous pulley; 135, synchronous belt; 140, driving unit; 141, slider; 142, driving block; 143, boss;

[0031] 200, material receiving mechanism; 210, second shell; 211, third accommodating chamber; 212, liquid inlet channel; 213, liquid outlet channel; 214, filter feed hole; 215, specimen discharge hole; 216, first limiting cavity; 217, second limiting cavity; 218, first annular groove; 219, second annular groove; 220, switching plate; 221, body fluid drainage hole; 222, filter receiving hole; 223, notch; 230, first sealing plate; 231, first transition hole; 232, second transition hole; 240, second sealing plate; 241, third transition hole; 242, fourth transition hole; 250, first sealing ring; 260, second sealing ring; 270, receiving plate; 271, specimen receiving trough; 280, sliding structure; 281, sealing plate; 282, movable support block; 283, elastic member;

[0032] 300. Feeding spoon. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] like Figures 1 to 6 As shown, the present invention provides a detachable manual negative pressure specimen suction collector, comprising:

[0036] The driving mechanism 100 includes a first shell 110 with a hollow interior. A first accommodating cavity 111 is provided in the first shell 110. A second accommodating cavity 112 is formed by being recessed along one side of the first shell 110 toward the opposite side thereof. The first accommodating cavity 111 and the second accommodating cavity 112 are connected via a through slot 113. A driving handle 120 is mounted on one side of the first shell 110 and is located outside the first shell 110. A transmission structure 130 is mounted in the first accommodating cavity 111, and one end of the transmission structure 130 is connected to the driving handle 120. A driving portion 140 is provided at the other end of the transmission structure 130. The driving portion 140 extends from the first accommodating cavity 111 through the through slot 113 into the second accommodating cavity 112. The reciprocating swing of the driving handle 120 in the vertical plane drives the driving portion 140 to reciprocate in the horizontal plane.

[0037] The material receiving mechanism 200 is detachably connected to the second accommodating chamber 112. The material receiving mechanism 200 includes a second shell 210 with a hollow interior. A third accommodating chamber 211 is provided in the second shell 210. The second shell 210 is provided with a drainage channel for transporting body fluids during patient surgery, a collection channel for receiving specimens, and a discharge channel for outputting the filter screen for which specimen collection has been completed; the switching plate 220 is installed in the third accommodating chamber 211, and the switching plate 220 is engaged with the driving part 140. The horizontal movement of the driving part 140 drives the horizontal movement of the switching plate 220, thereby prompting one of the drainage channel, the collection channel and the discharge channel to be in a working state, wherein a preset angle is formed between the plane where the switching plate 220 moves and the plane where the driving handle 120 swings.

[0038] It is worth mentioning that when the patient undergoes surgery, the lead-out channel for leading the patient's body fluids out of the body, the collection channel for collecting specimens from the patient's body, and the discharge channel for outputting the collected specimens are all arranged on the receiving mechanism 200, and the receiving mechanism 200 is detachably connected to the driving mechanism 100. Therefore, when the collecting mechanism needs to be cleaned, soaked and disinfected, the receiving mechanism 200 can be completely separated from the driving mechanism 100 for independent operation without carrying the driving mechanism 100, thereby avoiding corrosion or damage to the driving mechanism 100 by the cleaning fluid or disinfectant, thereby extending the service life of the driving mechanism 100.

[0039] It is further pointed out that in the prior art, since the switching plate 220 and the driving handle 120 are an integrated structure, such a setting not only causes the entire driving mechanism 100 to be cleaned, soaked and disinfected synchronously with the material receiving mechanism 200, causing damage to the driving mechanism 100, but also since the distance between the switching plate 220 and the driving handle 120 is relatively short, a larger driving force is required to drive the movement of the switching plate 220. In this embodiment, the driving handle 120 and the driving part 140 are connected by a transmission structure 130, and the existence of the transmission structure 130 increases the force arm between the two, so that a smaller driving force can be used to promote the movement of the switching plate 220, which is more labor-saving.

[0040] Preferably, the second shell 210 is provided with a liquid inlet channel 212 and a liquid outlet channel 213 along the drainage direction of the body fluid or the discharge direction of the specimen, the liquid inlet channel 212 is located on the upper side of the second shell 210, and the liquid outlet channel 213 is located on the lower side of the second shell 210, and a filter feed hole 214 is provided on the same side of the second shell 210 as the liquid inlet channel 212, the switching plate 220 is provided with a body fluid drainage hole 221 and a filter receiving hole 222 for receiving the filter, and a specimen discharge hole 215 is provided on the same side of the second shell 210 as the liquid outlet channel 213; wherein, when it is necessary to drain the body fluid in the patient's body out of the body, the body fluid drainage hole 221 is connected with the liquid inlet channel 212 and the liquid outlet channel 213 to form a drainage hole. Flow channel, at this time, the filter receiving hole 222 is connected with the filter feed hole 214, and the filter entering the filter feed hole 214 can directly enter the filter receiving hole 222 to wait for the signal for specimen collection; when it is necessary to collect the specimen in the patient's body into the filter, the filter receiving hole 222 is connected with the liquid inlet channel 212 and the liquid outlet channel 213 to form a collection channel; when it is necessary to discharge the collected specimen into the third accommodating chamber 211, the filter receiving hole 222 is connected with the specimen outlet hole 215 to form a discharge channel. At this time, the body fluid drainage hole 221 is connected with the liquid inlet channel 212 and the liquid outlet channel 213 again. In the current state, not only can the body fluid in the patient's body be externally drawn out, but the specimen can also be output synchronously.

[0041] Preferably, in order to improve the sealing performance of the entire material receiving mechanism 200, avoid the material receiving mechanism 200 from leaking fluid when draining fluid or collecting specimens, and avoid body fluid from leaking out of the second shell 210, two sealing plates are also provided in the third accommodating chamber 211, namely the first sealing plate 230 and the second sealing plate 240, and the switching plate 220 is clamped between the first sealing plate 230 and the second sealing plate 240, wherein the first sealing plate 230 is close to the side where the liquid inlet channel 212 is located, and the second sealing plate 240 is close to the side where the liquid outlet channel 213 is located, and the first sealing plate 230 is provided with a first transition hole 231 and a second transition hole 232, and the second sealing plate 240 is provided with a third transition hole 241 and a fourth transition hole 242.

[0042] It is worth mentioning that the first transition hole 231 is connected to the liquid inlet channel 212, and the two are coaxially arranged, the second transition hole 232 is connected to the filter feed hole 214, and the two are coaxially arranged, the third transition hole 241 is connected to the liquid outlet channel 213, and the two are coaxially arranged, and the fourth transition hole 242 is connected to the specimen outlet hole 215, and the two are coaxially arranged.

[0043] In addition, since the first transition hole 231 is always connected to the liquid inlet channel 212, the third transition hole 241 is always connected to the liquid outlet channel 213, and the liquid inlet channel 212 and the liquid outlet channel 213 are used to draw out the patient's body fluids or serve as specimen feed, the aperture of the first transition hole 231 and the aperture of the third transition hole 241 are smaller, and the second transition hole 232 is always connected to the filter feed hole 214, and the fourth transition hole 242 is always connected to the specimen discharge hole 215, and the filter feed hole 214 is used to feed the empty filter, and the specimen discharge hole 215 is used to discharge the filter loaded with the specimen, therefore, the aperture of the second transition hole 232 and the aperture of the fourth transition hole 242 are larger.

[0044] It is further pointed out that in order to allow the switching plate 220 to slide relative to the first sealing plate 230 and the second sealing plate 240 during the horizontal movement, and not to move synchronously with the switching plate 220, limiting cavities are respectively provided on the top of the third accommodating chamber 211 (the side arranged on the same side as the liquid inlet channel 212) and the bottom of the chamber (the side arranged on the same side as the liquid outlet channel 213), which are respectively a first limiting cavity 216 for embedding the first sealing plate 230, and a second limiting cavity 217 for embedding the second sealing plate 240.

[0045] It is worth mentioning that the depth of the first limiting cavity 216 is generally less than the thickness of the first sealing plate 230, and the depth of the second limiting cavity 217 is generally less than the thickness of the second sealing plate 240. With this design, when the first sealing plate 230 is embedded in the first limiting cavity 216, the side of the first sealing plate 230 that is in contact with the switching plate 220 is higher than the plane of the cavity opening of the first limiting cavity 216; when the second sealing plate 240 is embedded in the second limiting cavity 217, the side of the second sealing plate 240 that is in contact with the switching plate 220 is higher than the plane of the cavity opening of the first limiting cavity 216. The contacting side is higher than the plane of the opening of the second limiting cavity 217. With this design, when the switching plate 220 reciprocates between the first sealing plate 230 and the second sealing plate 240, the contact area between the switching plate 220 and the first sealing plate 230 is the surface area of ​​the first sealing plate 230, and the contact area between the switching plate 220 and the second sealing plate 240 is the surface area of ​​the second sealing plate 240. This does not increase the top area of ​​the switching plate 220 and the third accommodating cavity 211, nor does it increase the bottom area of ​​the third accommodating cavity 211. By reducing the contact area, the driving force required to overcome the friction when the switching plate 220 moves can be reduced, thereby facilitating the reciprocating movement of the switching plate 220 with less effort.

[0046] Further preferably, in order to further improve the sealing effect of the material receiving mechanism 200, a first sealing ring 250 is provided between the first sealing plate 230 and the third accommodating chamber 211 on the same side as the liquid inlet channel 212, and a second sealing ring 260 is provided between the second sealing plate 240 and the third accommodating chamber 211 on the same side as the liquid discharge channel, wherein a first annular groove 218 for embedding the first sealing ring 250 is provided on one of the sides of the first sealing plate 230 or the third accommodating chamber 211 on the same side as the liquid inlet channel 212, and a second annular groove 219 for embedding the second sealing ring 260 is provided on one of the sides of the second sealing plate 240 or the third accommodating chamber 211 on the same side as the liquid discharge channel.

[0047] It is worth mentioning that the first annular groove 218 and the second annular groove 219 are generally arranged on the top and bottom of the third accommodating cavity 211, wherein the first annular groove 218 or the second annular groove 219 can be divided into multiple arc-shaped grooves, and the corresponding first sealing ring 250 and the second sealing ring 260 can also be divided into multiple arc-shaped sealing strips. In addition, the number of the first annular groove 218 and the second annular groove 219 can also be more than one, and can be set to multiple, and the number of the corresponding first sealing rings 250 and the second sealing rings 260 can also be multiple, wherein the position of one first sealing ring 250 corresponds to the position of the first transition hole 231, and the position of the other first sealing ring 250 corresponds to the contour of the first sealing plate 230, the position of one second sealing ring 260 corresponds to the position of the third transition hole 241, and the position of the other second sealing ring 260 corresponds to the contour of the second sealing plate 240.

[0048] In this embodiment, the first sealing plate 230 cooperates with the first sealing ring 250 to form a first sealing structure, and the second sealing plate 240 cooperates with the second sealing ring 260 to form a second sealing structure, wherein the first sealing structure is embedded in the top of the third accommodating cavity 211, and the second sealing structure is embedded in the bottom of the third accommodating cavity 211.

[0049] It is worth mentioning that the first sealing plate 230 and the second sealing plate 240 are arranged in an integral manner, or the first sealing plate 230, the first sealing ring 250, the second sealing plate 240 and the second sealing ring 260 are arranged in an integral manner to form a sealing structure, and the switching plate is inserted into the sealing structure, wherein the upper side of the sealing structure is close to one side of the liquid inlet channel 212, and the lower side of the sealing structure is close to one side of the liquid outlet channel 213, and the upper side of the sealing structure is provided with a first transition hole 231 connected to the liquid inlet channel 212, and a second transition hole 232 connected to the filter feed hole 214, and the lower side of the sealing structure is provided with a third transition hole 241 connected to the liquid outlet channel 213, and a fourth transition hole 242 connected to the specimen discharge hole 215.

[0050] Preferably, since the specimen is contained in the filter when it is output from the specimen discharge hole 215, and when the filter containing the specimen is output from the specimen discharge hole 215, it is impossible for medical staff to catch the filter with their bare hands in time, and there is also a risk of mutual induction when catching the filter with their bare hands, so in order to reliably catch the filter containing the specimen, a specimen receiving channel is provided on the second shell 210 on the same side as the drainage channel, and the specimen receiving channel is located below the specimen discharge hole 215, wherein the length direction of the specimen receiving channel is perpendicular to the drainage direction of the drainage channel, or the collection direction of the collection channel, or the output direction of the discharge channel.

[0051] It is worth mentioning that a material receiving plate 270 is provided on the second shell 210, and the side of the material receiving plate 270 facing the drainage channel is recessed downward to form a specimen receiving groove 271, which serves as a specimen receiving channel, wherein one end of the specimen receiving groove 271 is located below the specimen discharge hole 215, and the other end of the specimen receiving groove 271 extends outward and is in an exposed state.

[0052] In this embodiment, since the filter screen falling from the specimen discharge hole 215 will directly enter the specimen receiving trough 271, but the initial position of the specimen receiving trough 271 for receiving the material is located below the specimen discharge hole 215, it is difficult for medical personnel to move the filter screen from the initial position to the exposed position. At this time, the medical personnel need to reach into the specimen receiving trough 271, but the diameter of the specimen receiving trough 271 is generally not large, which increases the difficulty for medical personnel to take the filter screen, and also causes mutual induction. Therefore, in order to smoothly catch the filter screen falling from the specimen discharge hole 215 and to be able to quickly move the filter screen from the initial position of the specimen receiving trough 271 to the exposed position, a feeding spoon 300 is provided on the specimen receiving trough 271. The feeding spoon 300 is provided with a longer spoon handle. In the initial state, the spoon mouth position of the feeding spoon 300 corresponds to the position of the specimen discharge hole 215. When a filter screen falls from the specimen discharge hole 215, it can directly enter the spoon mouth of the feeding spoon 300. Then the medical staff can directly grab the spoon handle of the feeding spoon 300 to move the total initial position of the filter screen to the exposed position. The operation is convenient and reliable.

[0053] It is worth mentioning that when the drainage channel is in use, the liquid inlet channel 212, the first transition hole 231 on the first sealing plate 230, the body fluid drainage hole 221 on the switching plate 220, the third transition hole 241 on the second sealing plate 240 and the liquid outlet channel 213 are interconnected to form a drainage channel. At this time, the filter feed hole 214 on the second shell 210, the second transition hole 232 on the first sealing plate 230, the filter receiving hole 222 on the switching plate 220, the fourth transition hole 242 on the second sealing plate 240 and the specimen discharge hole 215 on the second shell 210 are connected. If the filter is placed from the filter feed hole 214 at this time, the filter will directly pass through the second transition hole 232, the filter receiving hole 222, the fourth transition hole 242 and the specimen discharge hole 215 and fall into the specimen receiving trough 271, and the filter cannot be received. If a sealing plate 281 is set between the filter receiving hole 222 and the fourth transition hole 242, the filter entering from the filter feed port can smoothly enter the filter receiving hole 222. However, when the filter in the filter receiving hole 222 carries a specimen, due to the blockage of the sealing plate 281, the filter carrying the specimen is difficult to smoothly pass through the fourth transition hole 242 and the specimen discharge hole 215 into the specimen receiving trough 271.

[0054] Therefore, in order to solve the above-mentioned problems, in this embodiment, the sealing plate 281 is set as a movable structure. When the filter receiving hole 222 needs to receive the filter, the channel between the filter receiving hole 222 and the fourth transition hole 242 is blocked by the sealing plate 281. When the filter carrying the specimen needs to be output to the specimen receiving trough 271, the sealing plate 281 is removed to connect the channel between the filter receiving hole 222 and the fourth transition hole 242, thereby realizing the smooth output of the filter carrying the specimen.

[0055] It is further pointed out that the sealing plate 281 realizes the translation of the sealing plate 281 through the sliding structure 280, and the sliding structure 280 includes a movable support block 282, and the movable support block 282 is provided with a mounting cavity along the moving direction of the sealing plate 281, and the side of the mounting cavity facing the material picking spoon 300 is closed, and the side of the mounting cavity facing the groove wall of the specimen receiving groove 271 is open, wherein one side of the sealing plate 281 is clamped between the switching plate 220 and the second sealing plate 240, and one side of the sealing plate 281 is inserted into the movable support block 282; an elastic member 283, one end of the elastic member 283 is connected to the closed end of the mounting cavity, and the other end of the elastic member 283 is connected to the specimen receiving groove 27 1 is connected to the side opposite to the open end of the installation cavity, wherein, when it is necessary to receive the material, the movable supporting block 282 is pushed by the material taking spoon 300, and the movement of the movable supporting block 282 drives the movement of the sealing plate 281, so that the filter receiving hole 222 is connected with the fourth transition hole 242 and the specimen discharge hole 215, thereby realizing the discharge of the specimen. At this time, the elastic member 283 is in a compressed state. When the specimen discharge is completed, the material taking spoon 300 moves along the length direction of the specimen receiving groove 271. At this time, the movable supporting block 282 is reset under the action of the elastic member 283. At this time, the sealing plate 281 again blocks the passage between the filter receiving hole 222 and the fourth transition hole 242, preparing for the next filter receiving.

[0056] It is worth mentioning that, in order to ensure that the movable support block 282 can reliably drive the sealing plate 281 to reciprocate, a snap-fit ​​structure is provided between the sealing plate 281 and the movable support block 282. For example, a snap-fitting groove is provided on the sealing plate 281, and a snap-fitting block is provided on the movable support block 282. The snap-fitting connection between the snap-fitting groove and the snap-fitting block achieves a reliable connection between the sealing plate 281 and the movable support block 282. Secondly, in order to ensure that the elastic member 283 always follows its axial direction during compression and expansion, a guide rod is provided at the closed end of the mounting cavity, and the length of the guide rod extends from the closed end to the open end of the mounting cavity. The elastic member 283 is nested in the guide rod. In addition, in order to ensure the straightness of the movable support block 282 when moving in the specimen receiving trough 271, a guide structure can be set between the two sides of the movable support block 282 and the corresponding side walls of the specimen receiving trough 271, that is, guide ridges are set on both sides of the movable support block 282, and guide grooves are set on the corresponding side walls of the specimen receiving trough 271. The straightness of the movable support block 282 when moving is achieved through the sliding cooperation between the guide ridges and the guide grooves.

[0057] Preferably, in order to realize the assembly of the material receiving mechanism 200, the second shell 210 can be set as a splicing structure, and the second shell 210 includes an outer shell and a bottom support plate, wherein the liquid inlet channel 212 is arranged on the outer shell, and the liquid outlet channel 213 and the material receiving plate 270 are arranged on the bottom support plate.

[0058] Preferably, when the material receiving mechanism 200 is assembled on the driving mechanism 100 , the specimen receiving trough 271 and the driving handle 120 are located on the same side of the negative pressure specimen suction collector.

[0059] In this embodiment, the specimen receiving trough 271 and the driving handle 120 are arranged on the same side, so as to facilitate the operation of medical staff and save time and effort.

[0060] Further preferably, the through groove 113 is arranged in a stepped shape, including a first groove 1131 and a second groove 1132, and the position of the first groove 1131 corresponds to the position of the driving part 140, and the position of the second groove 1132 corresponds to the position of the receiving plate 270. When the material receiving mechanism 200 is assembled on the driving mechanism 100, the notch 223 on the switching plate 220 is plugged into and matched with the driving part 140, and the material receiving plate 270 is plugged into and matched with the second groove 1132, thereby limiting the installation position of the material receiving mechanism 200 on the driving mechanism 100.

[0061] Further preferably, bosses 114 are respectively provided on both sides of the open end of the second accommodating cavity 112, and guide grooves 1141 are respectively provided on the opposite sides of the two bosses 114, wherein the guide grooves 1141 are plugged into and matched with the second shell 210, thereby realizing fast and precise plugging and matching between the notch 223 on the switching plate 220 and the driving part 140, and the receiving plate 270 and the second groove 1132.

[0062] Preferably, a rotating stopper 115 is respectively provided on the two bosses 114. When the material receiving mechanism 200 is assembled in place on the driving mechanism 100, the material receiving mechanism 200 is fixed to the driving mechanism 100 by rotating the rotating stopper 115, thereby limiting the freedom of the material receiving mechanism 200 along the length direction of the guide groove 1141. When the rotating stopper 115 is reversed, the lock between the material receiving mechanism 200 and the driving mechanism 100 can be released, and the material receiving mechanism 200 can be removed from the driving mechanism 100.

[0063] Preferably, the transmission structure 130 includes a first bevel gear 131 connected to the driving handle 120, a second bevel gear 132 meshing with the first bevel gear 131, and a synchronous pulley structure connected to the second bevel gear 132, wherein a slide rail 133 is provided on the cavity wall of the first accommodating cavity 111, and one end of the driving part 140 is connected to the slide rail 133, and the other end of the driving part 140 is connected to the synchronous pulley structure. The first bevel gear 131 is driven to rotate by the driving handle 120, and due to the meshing transmission between the first bevel gear 131 and the second bevel gear 132, the synchronous belt 135 is driven to rotate. Since the driving part 140 is connected to the synchronous pulley structure, the translation of the driving part 140 is realized.

[0064] It is further pointed out that the synchronous pulley structure includes a plurality of synchronous pulleys 134, and the plurality of synchronous pulleys 134 are respectively located at various corners of the first accommodating cavity 111, wherein the plurality of synchronous pulleys 134 are connected by a synchronous belt 135, and one of the plurality of synchronous pulleys 134 is coaxially arranged with the second bevel gear 132 and connected to both ends of the transmission shaft.

[0065] It is further pointed out that the diameter of the synchronous wheel 134 coaxially arranged with the second bevel gear 132 is larger than the diameter of any other synchronous wheel 134 .

[0066] Preferably, the driving part 140 includes a slider 141 that slides with the slide rail 133, and a driving block 142 connected to the slider 141, and the driving block 142 is connected to the synchronous belt 135 through a synchronous pressure block, wherein the driving block 142 is provided with a protrusion 143 that is plugged into the notch 223 on the switching plate 220.

[0067] Preferably, in order to facilitate the assembly of the driving mechanism 100 , the first housing 110 includes a driving shell and a cover plate detachably connected to the driving shell.

[0068] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0069] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0070] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A detachable manual negative pressure specimen suction collector, characterized in that: include: The drive mechanism includes a first housing having a first accommodating cavity therein, a second accommodating cavity being formed by being recessed along one side of the first housing toward an opposite side thereof, the first accommodating cavity and the second accommodating cavity being connected via a through slot; a drive handle mounted on one side of the first housing and located outside the first housing; a transmission structure mounted in the first accommodating cavity, one end of the transmission structure being connected to the drive handle, and a drive unit being provided at the other end of the transmission structure, wherein the drive unit extends from the first accommodating cavity through the through slot into the second accommodating cavity, and the reciprocating swing of the drive handle in a vertical plane drives the drive unit to reciprocate in a horizontal plane; The material receiving mechanism is detachably connected to the second accommodating chamber, and the material receiving mechanism includes a second shell with a built-in third accommodating chamber, and the second shell is provided with a drainage channel for transporting body fluids during patient surgery, a collection channel for receiving specimens, and a discharge channel for outputting the filter screen for which the specimen collection has been completed; the switching plate is installed in the third accommodating chamber, and the switching plate is engaged with the driving part, and the horizontal movement of the driving part drives the horizontal movement of the switching plate, so that one of the drainage channel, the collection channel and the discharge channel is in a working state, wherein a preset angle is formed between the plane where the switching plate is located when it moves and the plane where the driving handle is located when it swings.

2. The detachable manual negative pressure specimen suction collector according to claim 1, characterized in that: The second shell is provided with a liquid inlet channel and a liquid outlet channel along the drainage direction of the body fluid, and a filter feed hole is provided on the same side of the second shell as the liquid inlet channel, a body fluid drainage hole and a filter receiving hole for receiving the filter are provided on the switching plate, and a specimen discharge hole is provided on the same side of the second shell as the liquid outlet channel; wherein the body fluid drainage hole is connected with the liquid inlet channel and the liquid outlet channel to form a drainage channel; the filter receiving hole is connected with the liquid inlet channel and the liquid outlet channel to form a collection channel; the filter receiving hole is connected with the specimen discharge hole to form a discharge channel.

3. The detachable manual negative pressure specimen suction collector according to claim 2, characterized in that: A first sealing structure and a second sealing structure are provided in the third accommodating chamber, and the switching plate is clamped between the first sealing structure and the second sealing structure, wherein the first sealing structure is close to the side where the liquid inlet channel is located, the second sealing structure is close to the side where the liquid outlet channel is located, and the first sealing structure is provided with a first transition hole connected to the liquid inlet channel, and a second transition hole connected to the filter feed hole, and the second sealing structure is provided with a third transition hole connected to the liquid outlet channel, and a fourth transition hole connected to the specimen discharge hole; or a sealing structure is provided in the third accommodating chamber, and the switching plate is inserted into the sealing structure, wherein the upper side of the sealing structure is close to one side of the liquid inlet channel, the lower side of the sealing structure is close to one side of the liquid outlet channel, and the upper side of the sealing structure is provided with a first transition hole connected to the liquid inlet channel, and a second transition hole connected to the filter feed hole, and the lower side of the sealing structure is provided with a third transition hole connected to the liquid outlet channel, and a fourth transition hole connected to the specimen discharge hole.

4. The detachable manual negative pressure specimen suction collector according to claim 3, characterized in that: The first sealing structure includes a first sealing plate, which is embedded in a first limiting concave cavity provided on the same side of the third accommodating chamber as the liquid inlet channel, and the second sealing structure includes a second sealing plate, which is embedded in a second limiting concave cavity provided on the same side of the third accommodating chamber as the liquid outlet channel, wherein the depth of the first limiting concave cavity is less than the thickness of the first sealing plate, the depth of the second limiting concave cavity is less than the thickness of the second sealing plate, and the first transition hole and the second transition hole are provided on the first sealing plate, and the third transition hole and the fourth transition hole are provided on the second sealing plate; or the first sealing structure includes a first sealing plate and a first sealing ring, and the first sealing plate is embedded in a first limiting concave cavity provided on the same side of the third accommodating chamber as the liquid inlet channel In the first limiting cavity, the first sealing ring is embedded in the first annular groove provided on the first sealing plate or the third accommodating cavity on the same side as the liquid inlet channel. The second sealing structure includes a second sealing plate and a second sealing ring. The second sealing plate is embedded in the second limiting cavity provided on the third accommodating cavity on the same side as the liquid inlet channel. The second sealing ring is embedded in the second annular groove provided on the second sealing plate or the third accommodating cavity on the same side as the liquid outlet channel. The depth of the first limiting cavity is less than the thickness of the first sealing plate, the depth of the second limiting cavity is less than the thickness of the second sealing plate, and the first transition hole and the second transition hole are provided on the first sealing plate, and the third transition hole and the fourth transition hole are provided on the second sealing plate.

5. The detachable manual negative pressure specimen suction collector according to claim 2, characterized in that: A material receiving plate is provided on the second shell, and the side of the material receiving plate facing the discharge channel is recessed downward to form a specimen material receiving trough, which serves as a specimen material receiving channel, wherein one end of the specimen material receiving trough is located below the specimen discharge hole, and the other end of the specimen material receiving trough extends outward and is in an exposed state, and a material scoop is provided in the specimen material receiving trough.

6. The detachable manual negative pressure specimen suction collector according to claim 5, characterized in that: A sealing plate is arranged between the switching plate and the second sealing plate, and the sealing plate is driven to move along the length direction of the specimen receiving trough by a sliding structure, wherein, when the sliding structure pushes the sealing plate to move, the filter receiving hole on the switching plate is connected to the fourth transition hole on the second sealing plate; when the sealing plate is reset, the passage between the filter receiving hole on the switching plate and the fourth transition hole on the second sealing plate is blocked.

7. The detachable manual negative pressure specimen suction collector according to claim 6, characterized in that: The sliding structure includes a movable support block, which is provided with an installation cavity along the moving direction of the sealing plate, and the side of the installation cavity facing the material scoop is closed, and the side of the installation cavity facing the groove wall of the specimen receiving trough is open, wherein one side of the sealing plate is clamped between the switching plate and the second sealing plate, and one side of the sealing plate is inserted into the movable support block; an elastic member, one end of the elastic member is connected to the closed end of the installation cavity, and the other end of the elastic member is connected to the side of the specimen receiving trough opposite to the open end of the installation cavity.

8. The detachable manual negative pressure specimen suction collector according to claim 5, characterized in that: The specimen receiving trough and the driving handle are located on the same side of the negative pressure specimen suction collector.

9. The detachable manual negative pressure specimen suction collector according to claim 1, characterized in that: Bosses are respectively provided on both sides of the opening end of the second accommodating cavity, and guide grooves are respectively provided on the opposite sides of the two bosses, wherein the guide grooves are plug-fitted with the second shell body, and rotating blocks are respectively provided on the two bosses, and the connection between the receiving mechanism and the driving mechanism is released or locked by rotating the rotating blocks.

10. The detachable manual negative pressure specimen suction collector according to any one of claims 1 to 9, characterized in that: The transmission structure includes a first bevel gear connected to the driving handle, a second bevel gear meshed with the first bevel gear, and a synchronous pulley structure connected to the second bevel gear, wherein a slide rail is provided on the cavity wall of the first accommodating cavity, and one end of the driving part is connected to the slide rail, and the other end of the driving part is connected to the synchronous pulley structure, the synchronous pulley structure includes a plurality of synchronous wheels, and the plurality of synchronous wheels are respectively located at various corners of the first accommodating cavity, wherein the plurality of synchronous wheels are connected by a synchronous belt, and one of the plurality of synchronous wheels is coaxially arranged with the second bevel gear and connected to both ends of the transmission shaft, and the diameter of the synchronous wheel coaxially arranged with the second bevel gear is larger than the diameter of any other synchronous wheel.

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