A reversing module and tissue extraction and collection mechanism

Abstract

The present invention discloses a reversing module and a tissue extraction and collection mechanism, comprising: a reversing device, comprising a shell and a reversing block embedded in the shell, the shell is provided with an inlet channel, an outlet channel and a collection channel, the reversing block has a collection channel and an extraction channel separated from each other, the reversing block is slidably arranged in the shell and the sliding path passes through at least a first position and a second position so that the inlet channel is connected with the outlet channel or the collection channel respectively; a fixed seat, an air flow channel is integrated therein, the air inlet is used to connect the air flow supply device, and the air outlet surrounds the collection channel and is arranged downwardly in multiple; an air port actuator, which is fixedly connected to the reversing device and arranged around the collection channel, is a contraction structure with an opening vertically downward and is integrated with an air path directed toward its enclosed area. The present invention provides two independent channels for a biopsy instrument through the automated action of the reversing block, and the operation process is clear and standardized, avoiding the risk of misoperation and cross infection.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a reversing module and a tissue extraction and collection mechanism. Background Art

[0002] Biopsy, or living tissue examination, is a method of collecting living tissue from target organs using biopsy instruments during endoscopy, surgery, etc., and then conducting pathological tests. It requires cutting, clamping, or puncturing the patient's body to remove the diseased tissue for pathological examination. It is of great significance for making a clear histopathological diagnosis for the vast majority of cases submitted for examination. At present, the extraction of biopsy tissue is mostly done by doctors using biopsy instruments to collect the biopsy tissue and then handing it over to nurses or assistants. The nurses or assistants then manually operate the biopsy tissue with a certain viscosity, such as repeated manual shaking and manual peeling, to remove the biopsy tissue from the biopsy instrument, transfer it to a collection container, and then manually stick a label for identification. This process is not only inefficient and has operational errors, but also has a large risk of cross-infection due to the large number of manual procedures.

[0003] Therefore, how to improve the work standardization and efficiency of the biopsy tissue extraction and collection process and reduce labor costs and cross-infection risks are technical problems that technical personnel in this field currently need to solve. Summary of the invention

[0004] In view of this, the present invention provides a reversing module to improve the work standardization and efficiency of the biopsy tissue extraction and collection process, and reduce labor costs and cross-infection risks.

[0005] The present invention also provides a tissue extraction and collection mechanism comprising the reversing module.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] In a first aspect, the present application provides a switching module, comprising:

[0008] A commutator, comprising a shell and a commutation block embedded in the shell, wherein the shell is provided with an inlet channel, an outlet channel and a collecting channel, the commutation block has a collecting channel and an extracting channel separated from each other, the commutation block is slidably arranged in the shell and the sliding path passes through at least a first position and a second position, when the commutation block is located at the first position, the collecting channel is connected with the inlet channel and the outlet channel; when the commutation block is located at the second position, the extracting channel is connected with the inlet channel and the collecting channel;

[0009] A fixing seat, used for carrying the commutator, wherein an air flow channel is integrated in the fixing seat, an air inlet of the air flow channel is used for connecting an air flow supply device, and a plurality of air outlets of the air flow channel are arranged downward around the collecting channel;

[0010] The air port actuator is fixedly connected to the commutator and arranged around the collecting channel. The air port actuator is a contraction structure with an opening vertically downward and is integrated with an air path directed toward its enclosed area.

[0011] Optionally, in the above-mentioned reversing module, the inlet channel and the outlet channel are arranged on two opposite sides of the shell with their central axes collinear, and the collection channel is a channel with a truncated cone configuration with its larger circular surface facing the inlet channel.

[0012] Optionally, in the above-mentioned reversing module, the inlet channel and the outlet channel are arranged in the horizontal direction, the collecting channel is arranged in the vertical direction, and the extraction channel is an arc configuration with a central angle of 90° to connect the inlet channel and the collecting channel when the reversing block is in the second position.

[0013] Optionally, in the above-mentioned reversing module, elastic mounting buckles are arranged on both sides of the shell to be clamped and fixed with the female buckles on the fixing base, and a micro switch for detecting whether the shell is installed in place is also arranged on the side of the fixing base facing the shell.

[0014] Optionally, in the above-mentioned reversing module, the shell includes an upper shell and a lower shell that are snap-connected, the inner wall of the upper shell is provided with two sliding grooves spaced apart, and the reversing block extends out of the guide rail and is slidably disposed on the two sliding grooves.

[0015] Optionally, in the above-mentioned reversing module, the air port actuator is made of transparent glass or acrylic.

[0016] In a second aspect, the present invention provides a tissue extraction and collection mechanism, which includes the reversing module described in any one of the above embodiments for reversing the biopsy forceps, and the tissue extraction and collection mechanism also includes:

[0017] A driving module, drivingly connected to the commutation block, so as to drive the commutation block to switch between a first position and a second position in the housing;

[0018] A pneumatic module, used for delivering compressed gas to the air flow channel in the fixing seat and the air path in the air port actuator;

[0019] A container module, comprising a support frame and a plurality of collection containers arranged on the support frame, wherein the opening of the collection container located at the working position is located directly below the opening position of the gas port actuator;

[0020] The video monitoring module at least includes a plurality of cameras arranged around the gas port execution part and around the container module for monitoring the biopsy tissue collection process.

[0021] Optionally, in the above-mentioned tissue extraction and collection mechanism, the pneumatic module includes an air compressor, a one-way valve, a gas storage bottle, an air filter and a solenoid valve connected through an air pipe. The air filter is arranged downstream of the air compressor to filter moisture and impurities. The solenoid valve adjusts the gas volume and pressure of a single gas use through opening control. The end of the air pipe is connected to the airflow channel and the gas circuit.

[0022] Optionally, in the above-mentioned tissue extraction and collection mechanism, the air flow channels are arranged in three groups, and a single group of the air flow channels includes two air inlets and two air outlets; the solenoid valve is a three-way solenoid valve to independently adjust the on-off of the three groups of the air flow channels.

[0023] Optionally, in the above-mentioned tissue extraction and collection mechanism, the driving module includes an electric cylinder, a reversing pressing piece and a connecting bracket, the reversing pressing piece is drivingly connected to the output end of the electric cylinder to move in a first direction under the drive of the electric cylinder, and the first direction is the movement direction of the reversing block when the position is switched;

[0024] The connecting bracket and the reversing pressing sheet are an integrated structure, the reversing block comprises a connecting protrusion extending out of the housing, and the connecting bracket is fixedly connected to the connecting protrusion.

[0025] Optionally, in the above-mentioned tissue extraction and collection mechanism, a plurality of springs are also arranged at intervals in the shell, and the two ends of any one of the springs respectively abut against the inner wall of the shell and the reversing block, the electric cylinder is turned on to drive the reversing block to switch from the first position to the second position and compress the spring, and the electric cylinder is closed to allow the reversing block to reset to the first position under the action of the spring.

[0026] Optionally, in the above-mentioned tissue extraction and collection mechanism, the container module includes a test tube holder, a tray, a selection motor and an encoder, the test tube holder is used to carry a single or multiple test tubes, the selection motor drives the tray to rotate through gear transmission, and the tray drives each of the test tubes to pass in turn directly below the opening of the gas port actuator during the rotation process;

[0027] The encoder is communicatively connected with the selection motor to position the test tube, and the test tube support is provided with numerical or letter identification information corresponding to the placement position of each test tube.

[0028] As can be seen from the above content, the reversing module provided by the present application is provided with a slidable reversing block in the shell, so that the biopsy instrument can be extended from different outlets after entering from the inlet channel on the shell by changing the position of the reversing block, so that the different extension position requirements of the biopsy instrument for in vivo collection and in vitro collection can be met by setting different outlet positions, and the air port actuator is used to assist in the peeling and collection of biopsy tissue. The medical staff extracts and collects biopsy tissue through the above reversing module. Specifically, the reversing block first moves to the first position, and the sterilized biopsy instrument extends from the inlet channel, passes through the outlet channel after being guided by the collection channel in the reversing block, enters the human body and performs the biopsy tissue extraction operation. During this process, the reversing block always remains in the first position; and when the medical staff completes the extraction of biopsy tissue, the biopsy instrument is operated to withdraw from the human body and pass through the outlet channel and the collection channel in turn, so that the end area of ​​the biopsy instrument carrying human tissue stays at the position of the inlet channel, and the biopsy tissue will not leave the commutator to avoid the external environment. The risk of contamination of biopsy tissue; at the same time, the reversing block is adjusted from the first position to the second position, and the medical staff immediately operates the biopsy instrument to extend it. The biopsy instrument located in the entrance channel will pass through the extraction channel, and after being guided, it will pass through the collection channel position and reach the enclosure space of the air port actuator. In particular, an air flow channel is integrated in the fixed seat, and the air port actuator is also provided with an air path. The biopsy tissue on the biopsy instrument can be peeled off from the biopsy instrument under the action of pneumatic force, and the air port actuator is specially provided with a contraction structure with an opening vertically downward to collect and guide the peeled biopsy tissue, so as to facilitate the collection by medical staff. The above operation can be repeated to perform multiple biopsy extractions on a single human body, and the action steps are fixed, which can be easily completed by a single person, and has good operational standardization. At the same time, during the entire action process, the biopsy instrument does not leave the shell from the entrance channel position, reducing the risk of infection of the biopsy tissue by the external environment during the entire operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the assembly of the reversing module disclosed in the embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the assembly structure of the commutator and the air port actuator disclosed in the embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the fixing seat disclosed in the embodiment of the present invention;

[0033] Figure 4 for Figure 3 Back view of

[0034] Figure 5 It is a schematic diagram of the cross-sectional structure of the commutation block disclosed in the embodiment of the present invention;

[0035] Figure 6 It is a schematic diagram of the lower shell structure disclosed in an embodiment of the present invention;

[0036] Figure 7 It is a schematic diagram of the upper shell structure disclosed in an embodiment of the present invention;

[0037] Figure 8 It is a schematic diagram of the assembly structure of the tissue extraction and collection mechanism disclosed in an embodiment of the present invention;

[0038] Fig. 9 It is a cross-sectional schematic diagram of the assembly structure of the commutation module and the drive module disclosed in the embodiment of the present invention;

[0039] Fig.10 It is a schematic diagram of the lateral structure of the assembled reversing module, the driving module and the container module disclosed in the embodiment of the present invention;

[0040] Fig.11 A schematic diagram of the camera position disclosed in an embodiment of the present invention;

[0041] Fig.12 It is a schematic diagram of the cross-sectional structure of the assembly of the reversing module, the driving module and the container module disclosed in the embodiment of the present invention.

[0042] Among them: 10-commutation module; 110-commutator; 120-housing; 1210-inlet channel; 1220-outlet channel; 1230-collection channel; 1240-upper shell; 1250-lower shell; 1260-installation buckle; 130-commutation block; 1310-collection channel; 1320-extraction channel; 1330-connection protrusion; 140-fixing seat; 1410-airflow channel; 1410a-air outlet; 1420-female buckle; 1430-micro switch; 1440-line Program column; 150-air port actuator; 20-drive module; 210-electric cylinder; 220-reversing pressure plate; 230-connecting bracket; 240-spring; 30-pneumatic module; 310-air pipe; 320-air compressor; 330-check valve; 340-gas cylinder; 350-air filter; 360-three-way solenoid valve; 40-container module; 410-test tube holder; 4110-test tube; 420-tray; 430-selection motor; 440-encoder; 510-camera. DETAILED DESCRIPTION

[0043] The invention discloses a tissue extraction and collection mechanism to improve the work standardization and efficiency of the biopsy tissue extraction and collection process and reduce labor costs and cross infection risks.

[0044] The invention also discloses a tissue extraction and collection mechanism comprising the reversing module.

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] like Figure 1 and Figure 2 As shown, the commutation module 10 provided in the embodiment of the present invention mainly includes a commutator 110, a fixing seat 140 and an air port actuator 150, so as to cooperate with the biopsy instrument to extract and collect human biopsy tissue. Specifically, the commutator 110 includes a shell 120 with a cavity structure, and the shell 120 is provided with an inlet channel 1210, an outlet channel 1220 and a collection channel 1230, and each channel can pass through the shell 120 to connect the cavity with the outside, and preferably the inlet channel 1210, the outlet channel 1220 and the collection channel 1230 are arranged on different side walls of the shell 120, and a commutation block 130 is arranged in the cavity structure of the shell 120, as shown in FIG. Figure 5 As shown, the reversing block 130 is specifically provided with a collection channel 1310 and an extraction channel 1320 for the biopsy instrument to pass through when collecting biopsy tissue, and the collection channel 1310 and the extraction channel 1320 are arranged in different areas of the reversing block 130 to be isolated from each other.

[0047] On the basis of this structure, the reversing block 130 is slidably disposed in the shell 120, and the sliding path of the reversing block 130 in the shell 120 passes through the first position and the second position and can be switched. Based on the sliding action of the reversing block 130, when the reversing block 130 is located in the first position, the two ends of the collection channel 1310 are respectively connected with the entrance channel 1210 and the exit channel 1220. At this time, the medical staff can operate the biopsy instrument to extend from the entrance channel 1210, and the biopsy instrument can pass through the collection channel 1310 and the exit channel 1220 to enter the human body for tissue extraction; and when the reversing block 130 is located in the second position, the two ends of the extraction channel 1320 are respectively connected with the entrance channel 1210 and the collection channel 1230. At this time, after the biopsy instrument is extended from the entrance channel 1210, it will pass through the collection channel 1230 after being guided by the collection channel 1230 and pass through the collection channel 1230.

[0048] like Figure 3 and Figure 4 As shown, the fixing seat 140 is used to carry the commutator 110. Preferably, the commutator 110 is plugged into the fixing seat 140 and locked by clamping. At the same time, in order to meet the needs of the biopsy instrument to quickly and conveniently peel and collect the biopsy tissue collected by it after it extends from the collection channel 1230, and reduce the difficulty of manual operation for medical staff, an air flow channel 1410 is also integrated in the fixing seat 140, that is, a passage structure is opened in the fixing seat 140. The air inlet of the air flow channel 1410 is used to connect to air supply equipment such as an air pump and an air compressor, and the air outlet 1410a of the air flow channel 1410 is as shown in FIG. Figure 3 As shown, the air outlet 1410a is arranged around the collection channel 1230, and the outflow direction of the air outlet 1410a is downward. After the biopsy instrument is extended from the collection channel 1230, the high-pressure airflow ejected from the air outlet 1410a of the airflow channel 1410 can quickly peel the biopsy tissue from the biopsy instrument without manual operation, which is convenient, efficient and safe.

[0049] On the basis of the above structure, considering that the exfoliation of tissue on the biopsy instrument requires a strong high-pressure airflow, otherwise it will lead to insufficient exfoliation, but when the flow rate of the airflow is too large, there is a risk of splashing the biopsy tissue and affecting the collection effect, so the reversing module 10 provided in the embodiment of the present application also includes an air port actuator 150. The air port actuator 150 is a cavity structure with openings at both ends, one end of which is fixedly connected to the commutator 110 and sealed, and its cavity structure is arranged around the collection channel 1230. The air port actuator 150 is arranged as a contraction structure with an opening vertically downward. After the airflow blows the biopsy tissue off the biopsy instrument, it will be preliminarily collected by the air port actuator 150. Due to its surrounding structure, the biopsy tissue will not splash out of the enclosure of the air port actuator 150 to be well collected.

[0050] Furthermore, an air path may be integrated on the inner wall of the air port execution part 150, and the air path is also used for allowing compressed gas to enter, and the guide outlet of the air path faces the surrounding area. On the one hand, the air path is used to assist in the peeling of the biopsy tissue on the biopsy instrument, and on the other hand, it can also prevent the biopsy tissue from adhering to the air port execution part 150.

[0051] It should be noted that a rubber gasket may be provided in the connection area between the air port actuator 150 and the commutator 110 and the fixing seat 140 so as to achieve a good sealing effect.

[0052] In the above embodiment, the specific extraction and collection process of the medical staff is that the medical staff adjusts the reversing block 130 to move to the first position first, the sterilized biopsy instrument extends from the inlet channel 1210, passes through the outlet channel 1220 after being guided by the collection channel 1310 in the reversing block 130, so as to enter the human body and perform the extraction operation of the biopsy tissue. In this process, the reversing block 130 always remains in the first position; and when the medical staff completes the extraction of the biopsy tissue, the biopsy instrument is operated to withdraw from the human body and pass through the outlet channel 1220 and the collection channel 1310 in sequence, so that the end area of ​​the biopsy instrument carrying the human tissue stays at the position of the inlet channel 1210, and the biopsy tissue will not leave the commutator 110 to avoid external circulation. The risk of contamination of the biopsy tissue by the environment is reduced; at the same time, the reversing block 130 is adjusted from the first position to the second position, and the medical staff immediately operates the biopsy instrument to extend it, and the biopsy instrument located at the entrance channel 1210 will pass through the extraction channel 1320, and after being guided, it will pass out from the collection channel 1230 position to reach the enclosure space of the air port actuator 150, and in particular, the fixed seat 140 is integrated with an air flow channel 1410, and the air port actuator 150 is also provided with an air path. The biopsy tissue on the biopsy instrument can be peeled off from the biopsy instrument under the action of pneumatic movement, and the air port actuator 150 is specially arranged as a contraction structure with an opening vertically downward to collect and guide the peeled biopsy tissue, so as to facilitate collection by medical staff. The above operation can be repeated to perform multiple biopsy extractions on a single human body, and the action steps are fixed and can be easily completed by a single person with good operational standards. At the same time, during the entire action process, the biopsy instrument does not leave the shell 120 from the entrance channel 1210, reducing the risk of infection of the biopsy tissue by the external environment during the entire operation.

[0053] In order to improve the convenience and stability of the biopsy instrument entering the human body, in some embodiments of the present invention, the inlet channel 1210 and the outlet channel 1220 on the housing 120 are arranged on opposite sides of the housing 120, and the central axes of the inlet channel 1210 and the outlet channel 1220 are collinear, so that a biopsy instrument with a certain rigidity can enter the inlet channel 1210 in a straight posture and pass through the outlet channel 1220. At the same time, the collection channel 1310 is preferably arranged in a truncated cone configuration, and the circular surface of the larger side is arranged toward the inlet channel 1210, so as to provide a larger entry surface for the biopsy instrument to extend, and the biopsy instrument is centered by the wall structure with a contraction tendency, so that the biopsy instrument can accurately reach the position of the outlet channel 1220.

[0054] On the basis of the above embodiment, it is preferred that the inlet channel 1210 and the outlet channel 1220 are arranged in the horizontal direction, while the collection channel 1230 is arranged downward in the vertical direction, so that the three channels do not affect each other. At the same time, in the reversing block 130, the collection channel 1310 is arranged in the horizontal direction to connect the inlet channel 1210 and the outlet channel 1220 when the reversing block 130 is in the first position, and the extraction channel 1320 is an arc configuration to connect the inlet channel 1210 and the collection channel 1230 when the reversing block 130 is in the second position. It should be noted that the extraction channel 1320 with an arc configuration can provide a uniform and smooth guide for the biopsy instrument, and avoid the damage to the biopsy tissue caused by an overly rigid collision. In some embodiments of the present invention, the extraction channel 1320 is an arc structure with a central angle of 90°, so that the horizontal extension and vertical extension length of the biopsy instrument in the extraction channel 1320 are similar, so that its deformation process is more uniform.

[0055] In order to further optimize the above technical solution, considering that there are many pipeline structures in the structure of the commutator 110, it is extremely difficult to clean it. Therefore, the commutator 110 is preferably set as a disposable medical consumable that is easy to disassemble and assemble. Specifically, a female buckle 1420 is set on the fixing seat 140 for carrying the commutator 110, and elastic mounting buckles 1260 are correspondingly set on the opposite sides of the shell 120. The mounting buckle 1260 will shrink when pressed, so that the shell 120 can be smoothly placed in the installation position on the fixing seat 140, and expand after reaching the installation position to achieve locking with the female buckle 1420. Similarly, when it needs to be removed, the shell 120 can be unlocked from the fixing seat 140 by pressing, which is convenient to operate.

[0056] In addition, it should be noted that a micro switch 1430 is also provided on the side of the fixing seat 140 facing the shell 120, and the travel column 1440 of the micro switch 1430 is extended toward the shell 120. When the shell 120 contacts the fixing seat 140 and is installed in place, the travel column 1440 will be pressed to trigger the micro switch 1430. The micro switch 1430 is triggered to display the installation information of the lower shell 1250, and feedback to the control module or directly display it on the user interaction interface, thereby improving the conditions for medical staff to have subsequent operations.

[0057] Furthermore, in order to facilitate the assembly of the housing 120 and the commutation block 130, as shown in FIG. Figure 6 and Figure 7As shown, in some embodiments of the present invention, the housing 120 includes an upper shell 1240 and a lower shell 1250 that are snap-fitted, so that the commutation block 130 can be embedded after the upper shell 1240 and the lower shell 1250 are opened. After the commutation block 130 is installed in place, the upper shell 1240 and the lower shell 1250 are snap-fitted to complete the assembly of the commutator 110. At the same time, the inner wall of the lower shell 1250 is also provided with a sliding groove, and the sliding groove is provided with at least two paths at intervals to have a stable guiding effect. Correspondingly, the commutation block 130 is slidably arranged on the sliding groove to switch between the first position and the second position under the guiding effect of the sliding groove. The setting of the sliding groove can reduce the movement resistance of the commutation block 130 and improve the smoothness of its position switching process. At the same time, a limiting structure such as a protrusion can be set in the sliding groove to limit the first position and the second position, thereby improving the accuracy of the position switching of the commutation block 130.

[0058] It should be noted that both the upper shell 1240 and the lower shell 1250 are open mold parts, which can be assembled through their own snap-on connection, and the connection structure is stable and easy to operate.

[0059] In addition, in order to facilitate medical staff to directly observe the collection process of biopsy tissue, the air port execution part 150 is preferably made of transparent glass or acrylic material. The tissue shedding process of the biopsy instrument in the air port execution part 150 can be directly observed and used as a reference for medical staff's operations. At the same time, medical staff can also adjust the output degree of airflow according to the shedding situation of tissue.

[0060] like Figure 8 As shown, the embodiment disclosed in the present invention also provides a tissue extraction and collection mechanism, which includes the reversing module 10 provided in any of the above embodiments for the biopsy instrument to perform reversing operations, and at the same time, the tissue extraction and collection mechanism also includes a driving module 20, a pneumatic module 30, a container module 40 and a video monitoring module, wherein the driving module 20 is in transmission connection with the reversing block 130 to provide power for the switching of the reversing block 130 between the first position and the second position. The pneumatic module 30 is used to generate high-pressure airflow and deliver it to the airflow channel 1410 in the fixing seat 140 and the air path in the air port actuator 150.

[0061] The container module 40 is arranged at the exit position of the collection channel 1230, and specifically includes a support frame and a plurality of collection containers arranged on the support frame. If a single collection container is arranged on the support frame, the opening of the collection container is arranged directly below the collection channel 1230; and when the support frame carries multiple collection containers, it can be set to a unidirectional movement or rotational movement structure to drive the multiple collection containers to change positions so that the multiple collection containers can pass through the working position in sequence. When a single collection container is located at the working position, its opening is located directly below the collection channel 1230 to carry the biopsy tissue collected from the biopsy instrument extending from the collection channel 1230.

[0062] like Figure 8 and Fig.11 As shown, the video monitoring module at least includes a camera 510 arranged around the air port execution part 150 and around the container module 40, so as to extract image information of its setting position and determine whether the collection and collection of biopsy tissue is successful, so as to detect and feedback the collected information and avoid the problem of empty load in the container module 40.

[0063] On the basis of the above structure, the pneumatic module 30 specifically includes an air compressor 320, a one-way valve 330, a gas cylinder 340, an air filter 350 and a solenoid valve. The above structural components are connected through the air pipe 310. Specifically, the air compressor 320 is used to compress air to generate compressed gas, which serves as the air source when the biopsy tissue is peeled off. At the same time, in order to avoid contamination of the biopsy tissue, an air filter 350 for filtering moisture and impurities is arranged downstream of the air compressor 320. The treated air is passed into the gas cylinder 340 for storage and voltage stabilization, thereby avoiding the problem of sudden air flow changes caused by direct air supply from the air compressor 320 and avoiding the problem of insufficient air flow. The solenoid valve is a valve structure with adjustable opening, so as to adjust the gas volume and pressure of a single gas use by controlling the opening. The one-way valve 330 is used to prevent the air flow from flowing back in the trachea 310. The end of the trachea 310 is connected to the air inlet of the air flow channel 1410 of the fixed seat 140 and the air inlet of the air path on the air port actuator 150, so as to carry out stable compressed gas delivery to meet the exfoliation requirements of the biopsy tissue.

[0064] In order to further optimize the above technical solution, Figure 4As shown, in some embodiments of the present invention, the airflow channels 1410 in the fixing seat 140 are independently arranged in three groups, and it should be noted that a single group of airflow channels 1410 includes two spaced and symmetrical air inlets, and at least two air outlets 1410a. Correspondingly, the solenoid valve in the pneumatic module 30 is a three-way solenoid valve 360, which can perform separate on-off adjustment on the airflow supply of the three groups of airflow channels 1410. On this basis, the air outlet 1410a of each airflow channel 1410 can be set to different outflow angles. Medical staff can adjust the on-off of the three groups of airflow channels 1410 to change the airflow supply and supply direction around the biopsy instrument, and improve the uniformity of the airflow around the biopsy instrument through the mixing effect, thereby improving the peeling effect of the biopsy tissue and reducing the risk of adhesion.

[0065] Furthermore, if Fig. 9 and Fig.10 As shown, the driving module 20 for driving the reversing block 130 to switch positions mainly includes an electric cylinder 210, a reversing pressure plate 220 and a connecting bracket 230, wherein the output end of the electric cylinder 210 is connected to the pressure plate so as to drive the pressure plate to move in a first direction. The electric cylinder 210 can achieve stable driving of the pressure plate through a feeding action, and then serve as a stable power source to provide drive for the movement of the reversing block 130. It should be noted that the first direction is the movement direction of the reversing block 130 when switching positions.

[0066] On this basis, the connecting bracket 230 is connected to the reversing pressure piece 220 as an integral structure to realize synchronous movement with the reversing pressure piece 220, and the reversing block 130 has a connecting protrusion 1330 arranged on the side wall extending out of the housing 120, and the connecting bracket 230 in the driving module 20 is fixedly connected to the connecting protrusion 1330, so that the driving action of the electric cylinder 210 can be transmitted to the reversing block 130. The connecting bracket 230 can be connected to the connecting protrusion 1330 through a clamping structure or bolts to realize synchronous movement, and it should be noted that based on the connection structure between the connecting bracket 230 and the connecting protrusion 1330, the electric cylinder 210 can drive the reversing block 130 to perform reciprocating switching movement between the first position and the second position, and in order to reduce the driving difficulty of the electric cylinder 210, in some preferred embodiments of the present invention, the electric cylinder 210 is only driven in one direction to reduce its control difficulty, that is, the electric cylinder 210 only needs to drive the reversing block 130 to switch from the first position to the second position. At the same time, a plurality of springs 240 are also arranged in the shell 120. The two ends of a single spring 240 respectively abut against the inner wall of the shell 120 and the reversing block 130. After the electric cylinder 210 is turned on, the reversing block 130 is driven to switch from the first position to the second position, and the spring 240 is compressed at the same time. The process of the reversing block 130 moving from the second position to the first position is realized by the elastic force of the spring 240. The position switching of the reversing block 130 is realized by the cooperation of the spring 240 and the electric cylinder 210, which can reduce energy consumption and the difficulty of adjusting the tissue extraction and collection mechanism.

[0067] like Figure 8 and Fig.12 As shown, for the container module 40 for collecting biopsy tissue, it specifically includes a test tube 4110 support 410, a tray 420, a selection motor 430 and an encoder 440, wherein the test tube 4110 support 410 is used to carry a single or multiple test tubes 4110, which can be set in quantity according to the needs of the patient, the test tube 4110 support 410 carries the test tube 4110 and is placed on the tray 420, and the selection motor 430 is used to drive the tray 420 to rotate. The selection motor 430 can be driven by directly connecting to the central axis of the tray 420, or indirectly driven by gear transmission to maintain the stability of the drive. During the rotation of the tray 420, it can drive the various areas on the test tube 4110 support 410 where the test tube 4110 is set to pass through the working position in turn, and the single test tube 4110 is located directly below the opening of the air port actuator 150 when it is located at the working position, and the biopsy tissue is collected.

[0068] When it is necessary to collect biopsy tissue, the medical staff adjusts the required test tube 4110 to the working position so that its opening faces the collection channel 1230 and the bottom of the air port actuator 150 for collection. After a single test tube 4110 completes collection, if it is necessary to continue collecting, the selection motor 430 can be turned on to move another empty test tube 4110 to the working position for another tissue collection until the collected sample volume meets the requirements.

[0069] Furthermore, the encoder 440 is used to locate the position of the test tube 4110, and is connected to the selection motor 430 in communication to ensure the accuracy of the test tube 4110 selection, so that each extraction is accurately collected into the test tube 4110 required by the medical staff. Correspondingly, the test tube 4110 support 410 is provided with digital or letter identification information corresponding to the placement position of each test tube 4110, so that the medical staff can intuitively identify each test tube 4110 and smoothly determine the order of the test tube 4110 and the target of the biopsy sample.

[0070] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

Claims

1. A reversing module, characterized in that: include: A commutator, comprising a housing and a commutation block embedded in the housing, wherein the housing is provided with an inlet channel, an outlet channel and a collection channel, the commutation block has a collection channel and an extraction channel separated from each other, the commutation block is slidably arranged in the housing and the sliding path passes through at least a first position and a second position, and when the commutation block is located at the first position, the collection channel is connected to the inlet channel and the outlet channel; When the reversing block is located at the second position, the extraction channel is connected to the inlet channel and the collection channel; A fixing seat, used for carrying the commutator, wherein an air flow channel is integrated in the fixing seat, an air inlet of the air flow channel is used for connecting an air flow supply device, and a plurality of air outlets of the air flow channel are arranged downward around the collecting channel; An air port actuator, fixedly connected to the commutator and arranged around the collecting channel, the air port actuator is a contraction structure with an opening vertically downward and an integrated air path directed toward its enclosed area; The inlet channel and the outlet channel are arranged on two opposite sides of the shell with their central axes collinear; the collection channel is a channel with a truncated cone configuration and the circular surface of the larger side faces the inlet channel; the inlet channel and the outlet channel are arranged in the horizontal direction, the collection channel is arranged in the vertical direction, and the extraction channel is an arc configuration with a central angle of 90° to connect the inlet channel and the collection channel when the reversing block is in the second position.

2. The reversing module according to claim 1, characterized in that: Elastic mounting buckles are arranged on both sides of the shell to be clamped and fixed with the female buckles on the fixing base, and a micro switch for detecting whether the shell is installed in place is also arranged on the side of the fixing base facing the shell.

3. The commutation module according to claim 1, characterized in that: The housing comprises an upper shell and a lower shell which are buckled and connected, and the inner wall of the upper shell is provided with two sliding grooves at intervals, and the reversing block extends out of the guide rail and is slidably arranged on the two sliding grooves.

4. The commutation module according to claim 1, characterized in that: The air port execution part is made of transparent glass or acrylic material.

5. A tissue extraction and collection mechanism, characterized in that: The biopsy forceps comprises a reversing module as described in any one of claims 1 to 4 for reversing the direction, and the tissue extraction and collection mechanism further comprises: A driving module, drivingly connected to the commutation block, so as to drive the commutation block to switch between a first position and a second position in the housing; A pneumatic module, used for delivering compressed gas to the air flow channel in the fixing seat and the air path in the air port actuator; A container module, comprising a support frame and a plurality of collection containers arranged on the support frame, wherein the opening of the collection container located at the working position is located directly below the opening position of the gas port actuator; The video monitoring module at least includes a plurality of cameras arranged around the gas port execution part and around the container module for monitoring the biopsy tissue collection process.

6. The tissue extraction and collection mechanism according to claim 5, characterized in that: The pneumatic module includes an air compressor, a one-way valve, a gas storage bottle, an air filter and a solenoid valve connected through an air pipe. The air filter is arranged downstream of the air compressor to filter moisture and impurities. The solenoid valve adjusts the gas volume and pressure of a single gas use through opening control. The end of the air pipe is connected to the air flow channel and the gas circuit.

7. The tissue extraction and collection mechanism according to claim 6, characterized in that: The airflow channels are arranged in three groups, and a single group of the airflow channels includes two air inlets and two air outlets; the solenoid valve is a three-way solenoid valve to independently adjust the on-off of the three groups of the airflow channels.

8. The tissue extraction and collection mechanism according to claim 5, characterized in that: The driving module includes an electric cylinder, a reversing pressing piece and a connecting bracket, wherein the reversing pressing piece is drivingly connected to the output end of the electric cylinder so as to move in a first direction under the drive of the electric cylinder, and the first direction is the movement direction of the reversing block when the position is switched; The connecting bracket and the reversing pressing sheet are an integrated structure, the reversing block comprises a connecting protrusion extending out of the housing, and the connecting bracket is fixedly connected to the connecting protrusion.

9. The tissue extraction and collection mechanism according to claim 8, characterized in that: A plurality of springs are arranged at intervals in the shell, and the two ends of any spring respectively abut against the inner wall of the shell and the reversing block. The electric cylinder is turned on to drive the reversing block to switch from the first position to the second position and compress the spring. The electric cylinder is closed to reset the reversing block to the first position under the action of the spring.

10. The tissue extraction and collection mechanism according to claim 5, characterized in that: The container module includes a test tube holder, a tray, a selection motor and an encoder. The test tube holder is used to carry a single or multiple test tubes. The selection motor drives the tray to rotate through gear transmission, and the tray drives each test tube to pass in turn directly under the opening of the air port actuator during the rotation process. The encoder is communicatively connected with the selection motor to position the test tube, and the test tube support is provided with numerical or letter identification information corresponding to the placement position of each test tube.

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