A tissue extraction and collection mechanism

Abstract

The present invention discloses a tissue extraction and collection mechanism, comprising: a reversing module, comprising a base and a shell, the shell is provided with an inlet channel, an outlet channel and a collection channel, and a reversing block is provided in the shell, the reversing block is provided with a collection channel and an extraction channel separated from each other; a driving module, connected to the reversing block in a transmission manner to drive the reversing block to switch between a first position and a second position in the shell, when the reversing block is in the first position, the two ends of the collection channel are respectively connected with the inlet channel and the outlet channel for the biopsy instrument to pass through for collection; when the reversing block is in the second position, the two ends of the extraction channel are respectively connected with the inlet channel and the collection channel; a container module, comprising a support frame and a plurality of collection containers arranged on the support frame, the opening of the collection container in the working position is located directly below the collection channel. The present invention provides two independent channels for the biopsy instrument through the automated action of the reversing block, the operation is standardized and the risk of cross infection is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to 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 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.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present application provides a tissue extraction and collection mechanism, comprising:

[0007] A reversing module comprises a base and a shell arranged on the base, the shell is provided with an inlet channel, an outlet channel and a collecting channel, and a reversing block is arranged in the shell, the reversing block is provided with isolated collecting channels and extraction channels;

[0008] a driving module, which is in driving connection with the reversing block to drive the reversing block to switch between a first position and a second position in the housing, wherein when the reversing block is in the first position, the two ends of the collection channel are respectively connected with the inlet channel and the outlet channel for the biopsy instrument to pass through for collection; when the reversing block is in the second position, the two ends of the extraction channel are respectively connected with the inlet channel and the collection channel;

[0009] The container module comprises a support frame and a plurality of collecting containers arranged on the support frame, wherein the openings of the collecting containers located at the working position are located directly below the collecting channel.

[0010] Optionally, the above-mentioned tissue extraction and collection mechanism also includes a pneumatic module for assisting tissue extraction, and an air flow channel is integrated in the base. The air flow output end of the pneumatic module is connected to the air inlet of the air flow channel, and the air outlet of the air flow channel is arranged around the collection channel and downwardly.

[0011] Optionally, in the above-mentioned tissue extraction and collection mechanism, a plurality of the air outlets are evenly arranged in the circumference of the collection channel and are inclined to form a conical structure with the tip pointing downward.

[0012] Optionally, in the above-mentioned tissue extraction and collection mechanism, the inlet channel and the outlet channel are arranged on 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 side circular surface facing the inlet channel.

[0013] Optionally, in the above-mentioned tissue extraction and collection mechanism, 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 to connect the inlet channel and the collection channel when the reversing block is in the second position.

[0014] Optionally, in the above-mentioned tissue extraction and collection mechanism, the shell includes an upper shell and a lower shell that are snap-connected, the inner wall of the lower shell is provided with a sliding groove, and the reversing block is slidably disposed on the sliding groove.

[0015] Optionally, in the above-mentioned tissue extraction and collection mechanism, elastic mounting buckles are provided on both sides of the lower shell to be clamped and fixed with the female buckles on the base, and a micro switch for detecting whether the lower shell is installed in place is also provided on the side of the base facing the lower shell.

[0016] 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 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 when the reversing block position is switched;

[0017] 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.

[0018] Optionally, in the above-mentioned tissue extraction and collection mechanism, a spring is also provided in the shell, and the two ends of the 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, and the electric cylinder is closed to allow the reversing block to reset to the first position under the action of the spring.

[0019] Optionally, in the above-mentioned tissue extraction and collection mechanism, two springs are arranged at intervals in the shell.

[0020] Optionally, in the above-mentioned tissue extraction and collection mechanism, a movable window for the connecting protrusion to pass through is provided on the shell, and when the reversing block is located at the first position, the connecting protrusion is located at the lower limit position of the movable window.

[0021] Optionally, in the above-mentioned tissue extraction and collection mechanism, the driving module further comprises a guide rail slider, the guide rail slider is fixedly arranged, and the connecting bracket is slidably connected to the guide rail slider in a first direction.

[0022] 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 air pressure of a single use through opening control. The end of the air pipe is connected to the air inlet of the air flow channel.

[0023] Optionally, in the above-mentioned tissue extraction and collection mechanism, two air inlets are symmetrically arranged on the base, and the end of the trachea is bifurcated and connected to the two air inlets.

[0024] Optionally, in the above-mentioned tissue extraction and collection mechanism, the air compressor is provided with a muffler and a safety valve, the gas storage cylinder is provided with a barometer, and a pressure regulating valve is further provided downstream of the gas storage cylinder.

[0025] Optionally, in the above-mentioned tissue extraction and collection mechanism, the container module includes a test tube holder, a tray and a drive motor, the test tube holder is used to carry a single or multiple test tubes, the drive motor is used to drive the tray to rotate, and the tray drives each of the test tubes to pass through the working position in turn during the rotation process.

[0026] Optionally, in the above-mentioned tissue extraction and collection mechanism, a positioning boss is further provided at the bottom of the tray to cooperate with a corresponding limiting screw provided at the bottom to perform zero-position calibration of the container module.

[0027] Optionally, in the above-mentioned tissue extraction and collection mechanism, the driving motor is a pan-tilt motor and is internally provided with an encoder for positioning the test tube, and digital or letter identification information is provided on the test tube holder corresponding to each test tube.

[0028] Optionally, the above-mentioned tissue extraction and collection mechanism further includes a video monitoring module, which includes at least a plurality of cameras arranged around the container module for monitoring the successful collection of the biopsy tissue into the collection container.

[0029] It can be seen from the above content that the tissue extraction and collection mechanism provided by the present application switches channels by setting a reversing block, so that after the biopsy instrument is inserted into the entrance channel, it can be extended from the positions of the exit channel and the collection channel respectively to perform tissue extraction and collection operations. Specifically, the medical staff extracts and collects biopsy tissues through the tissue extraction and collection mechanism. Specifically, the reversing block is adjusted to move to the first position by the driving module, and the sterilized biopsy instrument is extended from the entrance channel, and passes through the exit channel after being guided by the collection channel in the reversing block to enter the human body and perform the biopsy tissue extraction operation. During this process, the reversing block is always kept 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 exit 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 entrance channel, and at the same time, the driving module drives the reversing block to switch from the first position to the second position. The medical staff then operates the biopsy instrument to extend it, and the biopsy instrument located at the entrance channel will pass through the extraction channel and pass out from the collection channel position after being guided to carry the human biopsy tissue to the collection channel position, and the container module set at the outlet of the collection channel collects the biopsy tissue. The above operation can be repeated to perform multiple biopsy extractions on a single human body. During the whole process, the biopsy instrument does not leave the shell from the entrance channel position. The collection channel and the extraction channel are separated on the reversing block to reduce the infection risk of the biopsy tissue. At the same time, the standardized steps of single-person operation can also reduce labor costs and improve collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 It is a schematic diagram of a tissue extraction and collection mechanism disclosed in an embodiment of the present invention;

[0032] Figure 2 It is a schematic cross-sectional structure diagram of the assembled housing and base disclosed in an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the lower shell structure disclosed in an embodiment of the present invention;

[0034] Figure 4 It is a schematic diagram of the upper shell structure disclosed in an embodiment of the present invention;

[0035] Figure 5 It is a schematic cross-sectional structure diagram of the housing and the commutation block after being assembled according to the embodiment of the present invention;

[0036] Figure 6 It is a perspective structural schematic diagram of a base disclosed in an embodiment of the present invention;

[0037] Figure 7 It is a cross-sectional schematic diagram of the assembly structure of the commutation module and the driving module disclosed in the embodiment of the present invention;

[0038] Figure 8 The disclosed embodiment of the present invention Figure 7 lateral view of;

[0039] Fig. 9 It is a schematic diagram of the assembly structure of the reversing module, the driving module and the container module disclosed in the embodiment of the present invention;

[0040] Fig.10 The disclosed embodiment of the present invention Fig. 9 A schematic diagram of the forward cross-sectional structure of ;

[0041] Fig.11 It is a schematic diagram of the structure of the test tube holder and the tray disclosed in the embodiment of the present invention;

[0042] Fig.12 The figure is a schematic diagram of the installation position of the camera disclosed in the embodiment of the present invention.

[0043] Among them: 10-reversing module; 110-base; 1110-airflow channel; 1120-air outlet; 1130-female buckle; 1140-micro switch; 120-housing; 1210-inlet channel; 1220-outlet channel; 1230-collection channel; 1240-reversing block; 12410-collection channel; 12420-extraction channel; 12430-connection protrusion; 1250-upper shell; 1260-lower shell; 12610-installation buckle; 1270-spring; 1280-movable window; 20-driving module; 210-electric Cylinder; 220-reversing pressure piece; 230-connecting bracket; 240-guide rail slider; 30-container module; 310 test tube bracket; 3110-test tube; 320-tray; 3210-positioning boss; 330-drive motor; 340-limit screw; 40-pneumatic module; 410-air pipe; 420-air compressor; 4210-muffler; 4220-safety valve; 430-check valve; 440-gas cylinder; 4410-barometer; 450-air filter; 460-solenoid valve; 470-pressure regulating valve; 510-camera. DETAILED DESCRIPTION

[0044] 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.

[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 As shown, the tissue extraction and collection mechanism provided by the embodiment of the present invention mainly includes a reversing module 10, a driving module 20 and a container module 30, so as to cooperate with the biopsy instrument to extract and collect human biopsy tissue. Specifically, the reversing module 10 includes a base 110 for bearing, and a shell 120 arranged on the base 110. The base 110 is adaptively designed with surrounding structural components as a bearing structure. The shell 120 is inserted into a slot structure buckled on the base 110. In particular, as shown in FIG. Figure 2 As shown, the shell 120 is provided with an inlet channel 1210, an outlet channel 1220 and a collecting channel 1230, each of which can connect the internal and external areas of the shell 120, and preferably the inlet channel 1210, the outlet channel 1220 and the collecting channel 1230 are arranged on different side walls of the shell 120. At the same time, a reversing block 1240 is arranged inside the shell 120, and a collecting channel 12410 and an extraction channel 12420 are opened in the reversing block 1240 for the instrument to pass through when collecting biopsy tissue and when collecting biopsy tissue, and the collecting channel 12410 and the extraction channel 12420 are arranged in different areas of the reversing block 1240 to be isolated from each other.

[0047] The driving module 20 is connected to the commutation block 1240 in the commutation module 10. It should be noted that the volume of the internal cavity of the shell 120 is larger than the volume of the commutation block 1240, so that the commutation block 1240 can be adjusted in position in the shell 120, and the driving module 20 is used to drive the commutation block 1240 to move in the shell 120 and pass through the first position and the second position, and can switch between the first position and the second position. Based on the sliding action of the commutation block 1240, when the commutation block 1240 is in the first position, the collection channel 12 The two ends of 410 are respectively connected with the entrance channel 1210 and the exit channel 1220. At this time, the biopsy instrument can be inserted from the entrance channel 1210, and after passing through the collection channel 12410 and the exit channel 1220, it enters the human body to extract tissue; and when the reversing block 1240 is in the second position, the two ends of the extraction channel 12420 are respectively connected with the entrance channel 1210 and the collection channel 1230. At this time, after the biopsy instrument is inserted from the entrance channel 1210, it will pass through the collection channel 1230 after being guided by the collection channel 1230.

[0048] In the above embodiment, the medical staff extracts and collects the biopsy tissue through the tissue extraction and collection mechanism. Specifically, the driving module 20 adjusts the reversing block 1240 to move to the first position, and the sterilized biopsy instrument extends from the entrance channel 1210, passes through the collection channel 12410 in the reversing block 1240, and then passes through the exit channel 1220 to enter the human body and perform the biopsy tissue extraction operation. During this process, the reversing block 1240 is always kept 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 collection channel 12410 in sequence. After exiting the channel 1220 and the collection channel 12410, the end area of ​​the biopsy instrument carrying the human tissue stays at the position of the entrance channel 1210, and at the same time, the driving module 20 drives the reversing block 1240 to switch from the first position to the second position, and the medical staff then operates the biopsy instrument to extend it, and the biopsy instrument located at the entrance channel 1210 will pass through the extraction channel 12420, and pass out from the collection channel 1230 after being guided, so as to carry the biopsy tissue of the human body to the collection channel 1230, and collect the biopsy tissue at the exit of the collection channel 1230.

[0049] It should be noted that, based on the above structure, if multiple biopsy tissue extractions are required for a single patient, the end of the biopsy instrument can be operated to return to the position of the entrance channel 1210 after a single tissue extraction, and the above operation can be repeated to extract the biopsy tissue again. Since the biopsy instrument does not leave the shell 120 from the entrance channel 1210 during the extraction process of a single human body, the risk of infection of the biopsy tissue by external contamination is reduced, and the collection channel 12410 and the extraction channel 12420 are separated from each other on the reversing block 1240, which can also reduce the risk of cross infection. At the same time, the operation is standardized, and a single medical staff can complete the extraction and collection of multiple biopsy tissues, which reduces labor costs and improves collection efficiency.

[0050] Correspondingly, the container module 30 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 their 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.

[0051] Further, based on the above embodiment, after the medical staff extends the biopsy instrument from the collection channel 1230, they can shake it or add a vibration structure to vibrate the instrument to shake the biopsy tissue off. In some embodiments of the present invention, the tissue extraction and collection mechanism also includes a pneumatic module 40 for collecting biopsy tissue by blowing air, and correspondingly, Figure 6 As shown, the base 110 in the reversing module 10 is internally integrated with an airflow channel 1110, and the airflow output end of the pneumatic module 40 is connected to the air inlet of the airflow channel 1110 in the base 110 to supply gas to the base 110, and the air outlet 1120 of the airflow channel 1110 is arranged around the hole on the base 110 for the collecting channel 1230 to pass through, so as to form a structure in which the air outlet 1120 of the airflow channel 1110 is arranged around the collecting channel 1230 and is arranged toward the lower area of ​​the collecting channel 1230.

[0052] In the above structure, the reversing block 1240 is located at the second position, and after the medical staff operates the biopsy instrument to pass through the extraction channel 12420 and extend it from the collection channel 1230, the pneumatic module 40 is started to make the air outlet 1120 of the air flow channel 1110 spray out high-pressure airflow to blow the biopsy tissue collected on the biopsy instrument to the collection container at the bottom to complete the collection of the biopsy tissue, which does not require manual peeling, reducing the risk of infection and labor costs.

[0053] In order to further optimize the above technical solution, the air flow channel 1110 is provided with a plurality of air outlets 1120 in the peripheral branches of the collecting channel 1230, and the plurality of air outlets 1120 are evenly arranged along the circumferential direction of the collecting channel 1230, so that the biopsy instrument passing through the collecting channel 1230 can produce the biopsy tissue shedding under the blowing of the circumferentially uniform airflow, thereby avoiding the deviation of the air flow effect and affecting the accuracy of tissue shedding.

[0054] It should be noted that the multiple air outlets 1120 on the air flow channel 1110 are preferably arranged at an angle to form a conical or frustum structure with the tip facing downward, and the collection channel 1230 is located on the midline of the conical or frustum structure to gather the air flow at the air outlet 1120 and enhance its effect of blowing off the biopsy tissue on the biopsy instrument.

[0055] In order to improve the convenience and stability of the biopsy instrument entering the human body, in the reversing module 10, the entrance channel 1210 and the exit channel 1220 on the shell 120 are arranged on opposite sides of the shell 120, and the central axes of the entrance channel 1210 and the exit channel 1220 are collinear, so that a biopsy instrument with a certain rigidity can enter the entrance channel 1210 and pass through the exit channel 1220 in a straight posture. At the same time, the collection channel 12410 is preferably set to a truncated cone configuration, and the circular surface of the larger side is arranged toward the entrance channel 1210, so as to provide a larger entry surface for the insertion of the biopsy instrument, and the biopsy instrument is centered by using the wall structure with a contraction tendency, so that the biopsy instrument can accurately reach the position of the exit channel 1220.

[0056] On the basis of the above embodiments, 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 1240, the collection channel 12410 is arranged in the horizontal direction to connect the inlet channel 1210 and the outlet channel 1220 when the reversing block 1240 is in the first position, and the extraction channel 12420 is an arc configuration to connect the inlet channel 1210 and the collection channel 1230 when the reversing block 1240 is in the second position; it should be noted that the extraction channel 12420 with an arc configuration can provide uniform and smooth guidance for the biopsy instrument, and avoid damage to the biopsy tissue due to an overly rigid collision. In some embodiments of the present invention, the extraction channel 12420 is a quarter-circle arc structure, so that the horizontal extension and vertical extension lengths of the biopsy instrument in the extraction channel 12420 are similar, so that its deformation process is more uniform.

[0057] Further, in order to facilitate the assembly of the housing 120 and the reversing block 1240, as shown in FIG. Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the shell 120 includes an upper shell 1250 and a lower shell 1260 that are installed in a snap-fit ​​manner, so that the reversing block 1240 can be installed in an embedded manner after the upper shell 1250 and the lower shell 1260 are opened, and after being installed in place, the upper shell 1250 and the lower shell 1260 are snap-fitted and connected. At the same time, a sliding groove is also provided on the inner wall of the upper shell 1250 or the lower shell 1260, and the reversing block 1240 is slidably set on the sliding groove to switch between the first position and the second position under the guidance of the sliding groove. The setting of the sliding groove can reduce the movement resistance of the reversing block 1240 and improve the smoothness of its position switching process. At the same time, a limiting structure such as a protrusion can be provided in the sliding groove to limit the first position and the second position, thereby improving the accuracy of the position switching of the reversing block 1240.

[0058] In order to further optimize the above technical solution, taking into account the difficulty of cleaning some parts of the reversing module 10, the integrated structure formed by the upper shell 1250, the lower shell 1260 and the reversing block 1240 is designed as a disposable medical consumable, which is only used in one or more biopsy sampling processes of a single patient, and is removed and discarded after the sampling is completed. When sampling other patients, another integrated structure of the upper shell 1250, the lower shell 1260 and the reversing block 1240 is installed and used. Correspondingly, a female buckle 1130 is provided on the base 110 for carrying the structural components, and elastic mounting buckles 12610 are correspondingly provided on both sides of the lower shell 1260. The mounting buckles 12610 will shrink when pressed, so that the lower shell 1260 can be smoothly placed in the installation position on the base 110, and expand after reaching the installation position to achieve locking with the female buckle 1130; when it needs to be removed, the lower shell 1260 can be unlocked from the base 110 by pressing, which is convenient to operate.

[0059] It should be noted that the upper shell 1250 and the lower shell 1260 are both open mold parts, which can be assembled through their own snap-on connection, and the connection structure is stable and easy to operate.

[0060] In addition, it should be noted that Figure 7 As shown, the base 110 is preferably grooved on one side facing the lower shell 1260 and is provided with a micro switch 1140. The micro switch 1140 is triggered by contact after the lower shell 1260 contacts the base 110 and is engaged with the base 110, so as to display the installation information of the lower shell 1260, and feedback the control module or directly display it on the user interaction interface, so as to improve the conditions for medical staff to have subsequent operations.

[0061] Furthermore, if Figure 7 , Figure 8 and Fig. 9 As shown, the driving module 20 for driving the reversing block 1240 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 1240. It should be noted that the first direction is the movement direction of the reversing block 1240 when switching positions.

[0062] 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 1240 has a connecting protrusion 12430 extending out of the side wall of the shell 120, and the connecting bracket 230 in the driving module 20 is fixedly connected to the connecting protrusion 12430, so that the driving action of the electric cylinder 210 can be transmitted to the reversing block 1240, and the connecting bracket 230 can be connected to the connecting protrusion 12430 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 12430, the electric cylinder 210 can drive the reversing block 1240 to perform reciprocating switching between the first position and the second position, and in order to reduce the electric cylinder 210 Driving difficulty. 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 1240 to switch from the first position to the second position. At the same time, a spring 1270 is also provided in the shell 120. The two ends of the spring 1270 respectively abut the inner wall of the shell 120 and the reversing block 1240. After the electric cylinder 210 is turned on, the reversing block 1240 is driven to switch from the first position to the second position, and the spring 1270 is compressed at the same time. The process of the reversing block 1240 moving from the second position to the first position is realized by the elastic force of the spring 1270. The position switching of the reversing block 1240 is realized by the cooperation of the spring 1270 and the electric cylinder 210, which can reduce energy consumption and the difficulty of adjusting the tissue extraction and collection mechanism.

[0063] In order to improve the stability of the commutator block 1240 during the position switching process, two springs 1270 are preferably arranged at intervals in the shell 120 to achieve a more uniform elastic force on the commutator block 1240. When the electric cylinder 210 drives the commutator block 1240 to switch from the first position to the second position, the spring 1270 provides a buffering effect on the commutator block 1240, so that the switching process of the commutator block 1240 is softer. When the spring 1270 drives the commutator block 1240 to switch from the second position to the first position, the risk of deflection and jitter of the commutator block 1240 can also be reduced by applying force at intervals, thereby improving the stability of the commutator block 1240 during state switching.

[0064] In some embodiments of the present invention, a movable window 1280 is provided on the shell 120 to limit the reversing block 1240. Specifically, the movable window 1280 is provided on the shell 120 for the connecting protrusion 12430 to pass through. At the same time, when the reversing block 1240 is located in the first position, the connecting protrusion 12430 abuts against the lower edge of the movable window 1280 to limit the reversing block 1240, thereby preventing the reversing block 1240 from moving excessively and causing the channels to be unable to align, thereby affecting the collection process.

[0065] It should be noted that the limit of the reversing block 1240 in the second position can be controlled by the feeding distance of the electric cylinder 210 , and can also be achieved by the abutment limit of the upper edge of the movable window 1280 .

[0066] Similarly, in order to make the driving process of the electric cylinder 210 on the reversing block 1240 smoother and avoid the influence of the shaking of the equipment on the monitoring accuracy, the driving module 20 also includes a fixed guide rail slider 240, and the connecting bracket 230 is slidingly connected to the guide rail slider 240 in the first direction, so that the process of the connecting bracket 230 driving the reversing block 1240 to switch positions is smoother, and the risk of deflection of the connecting bracket 230 and the reversing block 1240 is reduced under the sliding guiding action.

[0067] Furthermore, the pneumatic module 40 provided in the embodiment of the present invention specifically includes an air compressor 420, a one-way valve 430, a gas cylinder 440, an air filter 450 and a solenoid valve 460. The above-mentioned structural components are connected through an air pipe 410. Specifically, the air compressor 420 is used to compress air to generate high-pressure gas, which serves as an 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 450 for filtering moisture and impurities is arranged downstream of the air compressor 420. The treated air is passed into the gas cylinder 440 for storage and pressure stabilization, thereby avoiding the problem of sudden air flow changes caused by direct air supply from the air compressor 420 and avoiding the problem of insufficient air flow. The solenoid valve 460 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 430 is used to prevent the air flow from flowing back in the trachea 410. The end of the trachea 410 is connected to the air inlet of the air flow channel 1110 on the base 110 to input stable high-pressure gas to the base 110. After the biopsy instrument is extended from the collection channel 1230, the tissue on the biopsy instrument is blown off into the collection container at the bottom of the collection channel 1230 to complete the collection of the biopsy tissue.

[0068] On the basis of the above embodiment, in order to improve the uniformity of the airflow in blowing off the biopsy tissue, two air inlets are symmetrically arranged on the base 110, and the end of the trachea 410 is forked into two branches, which are respectively connected to the two air inlets. It should be noted that the two air inlets in the base 110 and the air paths on both sides connected to the air inlets of the base 110 are preferably symmetrical structures, so that the airflow in the two areas in the base 110 is more uniform.

[0069] In order to further optimize the above technical solution, the embodiment of the present invention is provided with a muffler 4210 and a safety valve 4220 on the air compressor 420. The muffler 4210 is used to reduce the noise during the operation of the air compressor 420, and the safety valve 4220 is used to ensure that the air compressor 420 always works normally at the rated working pressure; similarly, a barometer 4410 is provided on the gas cylinder 440 to feed back the air pressure data in the gas cylinder 440 to the terminal to adjust the opening and closing of the air flow supply of the air compressor 420. A pressure regulating valve 470 is also provided downstream of the gas cylinder 440 to control the gas volume and pressure of the released gas in each operation to remain consistent, thereby maintaining the air pressure supply effect.

[0070] As for the container module 30 for collecting biopsy tissue, Fig. 9 , Fig.10 and Fig.11 As shown, it specifically includes a test tube holder 310, a tray 320 and a driving motor 330, wherein the test tube holder 310 is used to carry a single or multiple test tubes 3110, and the number can be set according to the patient's needs. The test tube holder 310 carries the test tube 3110 and places it on the tray 320, and the driving motor 330 is used to drive the tray 320 to rotate, and during the rotation of the tray 320, it can drive the various areas on the test tube holder 310 where the test tubes 3110 are set to pass through the working position in turn. When it is necessary to collect biopsy tissue, the medical staff adjusts the required test tube 3110 to the working position so that its opening faces the bottom of the collection channel 1230 for collection. After a single test tube 3110 completes the collection, if it is necessary to continue collecting, the driving motor 330 can be turned on to move another empty test tube 3110 to the working position, and tissue collection is performed again until the collected sample volume meets the demand.

[0071] On the basis of the above-mentioned embodiments, in order to ensure that the tray 320 can be accurately positioned so that each biopsy collection process can be started with the same reference, in some embodiments of the present invention, a positioning boss 3210 is further provided at the bottom of the tray 320, and a limiting screw 340 is correspondingly provided on the frame structure of the container module 30. The positioning boss 3210 and the limiting screw 340 cooperate to perform zero position calibration of the container module 30, thereby improving the standard uniformity of multiple biopsy collections.

[0072] Furthermore, in some embodiments of the invention, the driving motor 330 is a pan-tilt motor, which has a lighter weight and smaller volume, and has lower noise. At the same time, an encoder for positioning the test tube 3110 is provided inside the pan-tilt motor to ensure the accuracy of test tube 3110 selection, so that each extraction is accurately collected into the test tube 3110 required by the medical staff; correspondingly, the test tube holder 310 is provided with digital or letter identification information corresponding to the placement position of each test tube 3110, so that the medical staff can intuitively identify each test tube 3110 and smoothly determine the order of the test tubes 3110 and the target of the biopsy sample.

[0073] In addition, in order to improve the accuracy of the extraction and collection process of biopsy tissue, e.g. Fig.12 As shown, the tissue extraction and collection mechanism provided in the embodiment of the present invention also includes a video monitoring module. The video monitoring module determines whether the acquisition and collection of the biopsy tissue are successful by extracting the image information of the position where it is set. Therefore, the video monitoring module at least includes a plurality of cameras 510 arranged around the container module 30 for monitoring the successful collection of the biopsy tissue into the collection container. At the same time, the camera 510 can be connected to the drive motor 330 in the container module 30. After detecting the presence of biopsy tissue in the test tube 3110 in the working position, the drive motor 330 is allowed to rotate and adjust to avoid the appearance of an empty test tube 3110.

[0074] 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 tissue extraction and collection mechanism, characterized in that: include: A reversing module comprises a base and a shell arranged on the base, the shell is provided with an inlet channel, an outlet channel and a collecting channel, and a reversing block is arranged in the shell, the reversing block is provided with isolated collecting channels and extraction channels; a driving module, which is in driving connection with the reversing block to drive the reversing block to switch between a first position and a second position in the housing, wherein when the reversing block is in the first position, the two ends of the collection channel are respectively connected with the inlet channel and the outlet channel for the biopsy instrument to pass through for collection; when the reversing block is in the second position, the two ends of the extraction channel are respectively connected with the inlet channel and the collection channel; A container module, comprising a support frame and a plurality of collection containers arranged on the support frame, wherein the openings of the collection containers located at the working position are located directly below the collection channel; It also includes a pneumatic module for assisting tissue extraction, wherein an air flow channel is integrated in the base, an air flow output end of the pneumatic module leads to an air inlet of the air flow channel, and an air outlet of the air flow channel is arranged around the collection channel and downwardly arranged; The driving module comprises an electric cylinder, a reversing pressing piece and a connecting bracket, wherein the reversing pressing piece is 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; 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.

2. The tissue extraction and collection mechanism according to claim 1, characterized in that: A plurality of the air outlets are evenly arranged in the circumference of the collecting channel and are inclined to form a conical structure with the tip pointing downward.

3. The tissue extraction and collection mechanism according to claim 1, characterized in that: The inlet channel and the outlet channel are arranged on two opposite sides of the shell with their central axes being colinear. The collecting channel is a channel of a truncated cone configuration with its larger side circular surface facing the inlet channel.

4. The tissue extraction and collection mechanism according to claim 3, characterized in that: The inlet channel and the outlet channel are arranged in a horizontal direction, the collecting channel is arranged in a vertical direction, and the extraction channel is in an arc configuration to connect the inlet channel and the collecting channel when the reversing block is located in the second position.

5. The tissue extraction and collection mechanism according to claim 1, characterized in that: The housing comprises an upper shell and a lower shell which are buckled and connected, the inner wall of the lower shell is provided with a sliding groove, and the reversing block is slidably arranged on the sliding groove.

6. The tissue extraction and collection mechanism according to claim 5, characterized in that: Elastic mounting buckles are arranged on both sides of the lower shell to be clamped and fixed with female buckles on the base, and a micro switch for detecting whether the lower shell is installed in place is also arranged on the side of the base facing the lower shell.

7. The tissue extraction and collection mechanism according to claim 1, characterized in that: A spring is also provided in the shell, and two ends of the 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 allow the reversing block to return to the first position under the action of the spring.

8. The tissue extraction and collection mechanism according to claim 7, characterized in that: Two springs are arranged in the housing at intervals.

9. The tissue extraction and collection mechanism according to claim 1, characterized in that: The housing is provided with a movable window for the connecting protrusion to pass through, and when the reversing block is located at the first position, the connecting protrusion is located at the lower limit position of the movable window.

10. The tissue extraction and collection mechanism according to claim 1, characterized in that: The driving module further comprises a guide rail slider, the guide rail slider is fixedly arranged, and the connecting bracket is slidably connected to the guide rail slider in a first direction.

11. The tissue extraction and collection mechanism according to claim 1, 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 air volume and air pressure of a single use through opening control. The end of the air pipe is connected to the air inlet of the air flow channel.

12. The tissue extraction and collection mechanism according to claim 11, characterized in that: The two air inlets are symmetrically arranged on the base, and the end of the air pipe is forked and communicated with the two air inlets.

13. The tissue extraction and collection mechanism according to claim 11, characterized in that: The air compressor is provided with a muffler and a safety valve, the gas storage cylinder is provided with a barometer, and a pressure regulating valve is also provided downstream of the gas storage cylinder.

14. The tissue extraction and collection mechanism according to claim 1, characterized in that: The container module includes a test tube holder, a tray and a driving motor. The test tube holder is used to carry a single or multiple test tubes. The driving motor is used to drive the tray to rotate. During the rotation process, the tray drives each of the test tubes to pass through the working position in turn.

15. The tissue extraction and collection mechanism according to claim 14, characterized in that: The bottom of the tray is also provided with a positioning boss to cooperate with a corresponding limiting screw provided at the bottom to perform zero position calibration of the container module.

16. The tissue extraction and collection mechanism according to claim 14, characterized in that: The driving motor is a pan-tilt motor and is internally provided with an encoder for positioning the test tubes. The test tube support is provided with numerical or letter identification information corresponding to the placement position of each test tube.

17. The tissue extraction and collection mechanism according to claim 1, characterized in that: It also includes a video monitoring module, which at least includes a plurality of cameras arranged around the container module and used to monitor the smooth collection of the biopsy tissue into the collection container.

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