CN116058885A - Biopsy collection system and biopsy collection method - Google Patents

Abstract

The invention discloses a biopsy collecting system and a biopsy collecting method, and relates to the technical field of medical equipment. In the biopsy collecting system, the conversion device comprises a converter and a conversion rotation driving device, the converter is connected to an output shaft of the conversion rotation driving device, the converter comprises two containing cavities, and the two containing cavities are communicated through an air passage. The conversion rotation driving device drives the converter to rotate, so that the two accommodating cavities are alternately used as a front accommodating cavity and a rear accommodating cavity. The gas in the inner cutter tube can enter the collecting device through the front accommodating cavity, the air passage and the rear accommodating cavity in sequence. The tissue sample in the inner knife tube can enter the front accommodating cavity for temporary storage, and after the front accommodating cavity rotates to the rear accommodating cavity, the temporarily stored tissue sample flows to the collecting device through the rear accommodating cavity. Based on the setting of converter and conversion rotary drive device in the conversion equipment, the transmission direction of sample can be adjusted to two accommodation chamber of converter, can set up the position of different parts such as collection device in the conversion equipment as required, and it is more convenient to use.

Description

Biopsy collection system and biopsy collection method

Technical Field

The invention relates to the technical field of medical equipment, in particular to a biopsy collecting system and a biopsy collecting method.

Background

Current biopsy collection systems are used primarily for sampling examination of collected tissue or for minimally invasive excision of certain tissues. In use, tissue is cut, for example, breast tissue, by a needle or knife tube of the collection system, and the cut tissue is then transported to the collection device.

The cut tissue often mixes impurity such as blood, and the tissue shape of cutting is generally tiny in addition, in order to be convenient for the collection of cut tissue, in current biopsy collecting system, often set up collection device at the rear that collects the position that syringe needle or sword pipe are just right, collection device and syringe needle or sword pipe pass through the straight tube intercommunication, and the tissue of cutting is in sharp transmission from front to back and is in collection device, later carries out other treatments with the tissue in the collection device, when being used for sampling inspection for instance, carries out pathological examination with it. However, such a collection system placed behind the biopsy collection system is inconvenient to use due to the limited operating space, the need for a sterile protective cover at the rear of the biopsy collection system, and the difficulty in replacing and sampling the collection device.

Therefore, how to provide a biopsy collection system which is more convenient to use is a technical problem which needs to be solved by the person skilled in the art

Disclosure of Invention

Accordingly, it is an object of the present invention to provide a biopsy collection system that is more convenient to use.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a biopsy collection system comprising a needle and a tissue sample holder assembly, wherein the needle is configured to collect a tissue sample and transfer the tissue sample to the tissue sample holder assembly;

the tissue sample holder assembly comprises a housing, an inner cutter tube, a conversion device, a collection device and a vacuum tube, the needle being disposed on the inner cutter tube;

the conversion device comprises a converter and a conversion rotation driving device, the converter is connected to an output shaft of the conversion rotation driving device, the converter comprises two accommodating cavities, and the two accommodating cavities are communicated through an air passage; the conversion rotation driving device drives the converter to rotate, so that the two accommodating cavities are alternately used as a front accommodating cavity and a rear accommodating cavity;

the gas in the inner cutter tube can enter the collecting device through the front accommodating cavity, the air passage and the rear accommodating cavity in sequence;

the tissue sample in the inner cutter tube can enter the front accommodating cavity for temporary storage, and after the front accommodating cavity rotates to the rear accommodating cavity, the temporarily stored tissue sample flows to the collecting device through the rear accommodating cavity.

Preferably, the transducer comprises a rotating core and a capping structure; one end of the rotary core, which is close to the sealing cover structure, is provided with a connecting groove, two side holes extending along the axial direction are arranged on the rotary core, one ends of the two side holes in the axial direction are communicated through the connecting groove, and the other ends of the two side holes are provided with openings for communicating with the external space of the rotary core; the sealing cover structure seals the notch of the connecting groove so that the connecting groove after sealing cover forms the air passage; each side hole is internally provided with one accommodating cavity.

Preferably, the converter comprises a spindle plate; the rotating shaft plate comprises a connecting part and a sealing cover structure, the connecting part is fixedly connected with the sealing cover structure, the sealing cover structure is provided with a concave structure, the rotating core is axially inserted into the concave structure, the rotating shaft plate is connected with a conversion rotating driving device through the connecting part, and the rotating core is driven to synchronously rotate through the concave structure.

Preferably, a cylinder end plate is arranged on the accommodating cavity, a cylinder air hole is formed in the cylinder end plate, and the accommodating cavity is ventilated with the air passage through the cylinder air hole;

after the tissue sample enters the front containing cavity, the tissue sample moves in the front containing cavity at most to abut against the barrel end plate of the front containing cavity.

Preferably, the converter further comprises a conversion core; the conversion core comprises two side rods and a U-shaped structure formed by connecting rods between the two side rods, wherein one accommodating cavity is respectively arranged on each side rod, and the two side rods are respectively inserted into the two side holes.

Preferably, the conversion device further comprises a connector for transferring the tissue sample of the inner cutter tube to the front receiving chamber and for transferring the tissue sample of the rear receiving chamber to the collection device, the connector comprising a front connecting tube and a rear connecting tube; one pipe orifice of the front connecting pipe is connected with the outlet of the inner cutter pipe, and the other pipe orifice is used for connecting the front accommodating cavity; one pipe orifice of the rear connecting pipe is used for connecting the rear accommodating cavity, and the other pipe orifice is connected with the collecting device; the conversion rotation driving device drives the converter to rotate, so that the two accommodating cavities are alternately butted with the front connecting pipe and the rear connecting pipe.

Preferably, the connector further comprises a mounting plate; the mounting plate is provided with a first through hole and a second through hole; one pipe orifice of the front connecting pipe is connected with the outlet of the inner cutter pipe, and the other pipe orifice is connected with the first through hole so as to be connected with the front accommodating cavity through the first through hole; one pipe orifice of the rear connecting pipe is connected with the second through hole so as to be connected with the rear accommodating cavity through the second through hole, and the other pipe orifice is connected with the collecting device; the end face of the pipe orifice of the front connecting pipe, the end face of the pipe orifice of the rear connecting pipe and one side face of the mounting plate are arranged in a coplanar manner;

The conversion rotation driving device drives the converter to rotate, so that the two accommodating cavities are alternately butted with the first through hole and the second through hole.

Preferably, the transducer further comprises a transducer housing and a transducer cap; the converter shell with converter cap is along setting gradually and fixed connection axially, and forms the installation cavity between the two, hold the chamber with the mounting panel is built-in the installation cavity, the converter shell with converter cap is along the axial compress tightly the mounting panel in hold the chamber, preceding connecting pipe with back connecting pipe is through the through-hole on the converter cap stretches out the installation cavity.

Preferably, the collecting device is arranged outside the shell, and the collecting device is positioned at the front end of the shell.

Preferably, a part of the wall surface of the front end surface of the housing is recessed rearward to form a recessed surface, and the collecting device is provided in the recessed surface.

Preferably, the outlet of the inner cutter tube is connected to the feeding channel of the collecting device through the switching device, and the air suction channel of the collecting device is connected to one port of the vacuum tube; the collecting device is internally provided with a collecting cavity, a filter plate is arranged in the collecting cavity, a material receiving space is formed by a space positioned at one side of the filter plate in the collecting cavity, the material receiving space and the feeding channel are positioned at the same side of the filter plate, and the air suction channel is positioned at the other side of the filter plate, so that tissues entering the collecting cavity through the feeding channel can be accommodated in the material receiving space; the filter plate is provided with air holes, and gas in the inner cutter tube can sequentially pass through the conversion device and the feeding channel to enter the material receiving space, and then sequentially pass through the air holes and the air suction channel to enter the vacuum tube.

Preferably, the collecting device comprises a collecting outer shell and a collecting inner shell, the collecting inner shell is arranged in the collecting outer shell, part of the plate surface of the collecting inner shell is provided with the filter plate, a space between the collecting inner shell and the collecting outer shell forms a filter cavity, and the material collecting space is arranged in the collecting inner shell; the air suction channel is arranged on the collecting outer shell so as to be communicated with the filter cavity and the vacuum tube, and the feeding channel is arranged on the collecting inner shell and the collecting outer shell so as to be communicated with the material receiving space and the inner cutter tube.

Preferably, the filter plate is arranged at the bottom of the material receiving space.

Preferably, the collecting device comprises a collecting device cover and a collecting device main body with one side open, and the collecting device cover is detachably covered on the opening of the collecting device main body.

Preferably, the outer surface of the collecting device is convexly provided with a feeding connecting pipe and an air pipe, the feeding connecting pipe and the air pipe are arranged on the shell, the feeding channel comprises the feeding connecting pipe, and the air suction channel comprises the air pipe.

A biopsy collection method, employing a biopsy collection system as above, the method comprising:

Controlling a negative pressure device connected with the vacuum tube to start, and providing negative pressure to the vacuum tube;

controlling the conversion rotation driving device to start once every set time interval so as to enable the two accommodating cavities to alternately serve as the front accommodating cavity and the rear accommodating cavity;

wherein the cut tissue sample enters the front accommodating cavity through the inner knife tube under the action of the negative pressure, and the tissue sample in the rear accommodating cavity enters the collecting device under the action of the negative pressure.

The present invention provides a biopsy collection system comprising a needle and a tissue sample holder assembly, wherein the needle is configured to collect a tissue sample and to transfer the tissue sample to the tissue sample holder assembly. The tissue sample holder assembly includes a housing, an inner cutter tube on which the needle is disposed, a switching device, a collection device, and a vacuum tube. The conversion device comprises a converter and a conversion rotation driving device, the converter is connected to an output shaft of the conversion rotation driving device, the converter comprises two containing cavities, and the two containing cavities are communicated through an air passage. The conversion rotation driving device drives the converter to rotate, so that the two accommodating cavities are alternately used as a front accommodating cavity and a rear accommodating cavity. The gas in the inner cutter tube can enter the collecting device through the front accommodating cavity, the air passage and the rear accommodating cavity in sequence. The tissue sample in the inner knife tube can enter the front accommodating cavity for temporary storage, and after the front accommodating cavity rotates to the rear accommodating cavity, the temporarily stored tissue sample flows to the collecting device through the rear accommodating cavity.

After inner cutter tube sampling, the motion of gas and tissue samples is involved:

for the movement of the gas, the gas enters the front accommodating cavity, the air passage and the rear accommodating cavity from the inner cutter pipe, then enters the collecting device through the feeding channel, and forms a gas passage for unidirectional flow of the gas through the two accommodating cavities;

for the motion of sample, after the inner knife pipe is adsorbed after the tissue sample is cut off, hold the chamber after getting into in the front from the inner knife pipe, hold the chamber in front and keep in, change rotary drive device and pass through the drive converter and rotate, hold the chamber switching position that the load has the sample and hold the chamber as the back, simultaneously, hold the chamber switching position as the front after originally holding the chamber, hold the chamber after switching over, hold the chamber around the sample that holds the chamber temporarily and get into collection device from holding the chamber around at present, hold the chamber before present and can continue the collection of sample.

Based on the setting of converter and conversion rotary drive device in the conversion equipment, two hold the chamber in the converter and can adjust the transmission direction of sample for after the sample got into one holds the chamber, again convert rotary drive device drive converter and rotate the back, the sample still can follow the port that gets into this and hold the chamber before, be equivalent to making the entering direction of sample and shift out the direction and be opposite, thereby can adjust the direction of movement of sample as required, need not the sample all the time according to a direction motion, can set up the position of different parts in the conversion equipment as required, correspondingly, collection device also need not to set up behind biopsy collection system like prior art, for example, collection device can be leading, in order to take a sample and collection device's change, thereby make biopsy collection system use more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is an internal block diagram of a biopsy collection system provided by the present invention;

FIG. 2 is an external view of FIG. 1;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is an exploded view of a transducer in a biopsy collection system provided by the present invention;

fig. 6 is an assembly view of a transducer in a biopsy collection system provided by the present invention.

FIG. 7 is an axial cross-sectional view of the components of the transducer in the biopsy collection system provided by the present invention;

FIG. 8 is an assembled axial cross-sectional view of a transducer in a biopsy collection system provided by the present invention;

FIG. 9 is an assembly view of a transducer and connector in a biopsy collection system provided by the present invention;

FIG. 10 is an axial cross-sectional view of FIG. 9;

FIG. 11 is a first perspective view of a biopsy collection system provided by the present invention after assembly of a rotating core and a translating core;

FIG. 12 is a second directional view of the assembled rotating and translating cores of the biopsy collection system provided by the present invention;

FIG. 13 is a right end side view of FIG. 12;

FIG. 14 is a cross-sectional view taken in the F-F direction of FIG. 13;

FIG. 15 is a left end side view of FIG. 12;

FIG. 16 is a perspective view of a transition core first orientation in a biopsy collection system provided by the present invention;

FIG. 17 is a second directional view of the transition core in the biopsy collection system provided by the present invention;

FIG. 18 is an axial cross-sectional view of a transition core in a biopsy collection system provided by the present invention;

FIG. 19 is a first perspective view of a rotating core in a biopsy collection system provided by the present invention;

FIG. 20 is a cross-sectional view in the H-H direction of FIG. 19;

FIG. 21 is a second directional view of the rotating core of the biopsy collection system provided by the present invention;

FIG. 22 is a first perspective exploded view of a rotating shaft plate and rotating core in a biopsy collection system provided by the present invention;

FIG. 23 is a second perspective exploded view of a rotating shaft plate and rotating core of the biopsy collection system provided by the present invention;

FIG. 24 is an exploded view of a collection device in a biopsy collection system provided by the present invention;

FIG. 25 is a side view of a collection device in a biopsy collection system provided by the present invention;

FIG. 26 is a cross-sectional view in the M-M direction of FIG. 25;

FIG. 27 is a front view of a collection device in a biopsy collection system provided by the present invention;

FIG. 28 is a cross-sectional view taken along A-A of FIG. 27;

FIG. 29 is an assembly view of a collection device and a delivery tube, vacuum tube in a biopsy collection system provided by the present invention;

FIG. 30 is a front view of the biopsy collection system provided by the present invention after connection of a cable;

figure 31 is a front view of figure 30 after assembly of the sterile protective sheath;

FIG. 32 is an enlarged front end view of FIG. 31;

FIG. 33 is a cross-sectional view of a transducer in a second embodiment of a biopsy collection system provided by the present invention;

fig. 34 is a cross-sectional view of a transducer in a third embodiment of a biopsy collection system provided by the present invention.

Reference numerals:

a vacuum tube 1;

a housing 2, a recessed surface 21;

the collecting device 3, the feeding channel 31, the air suction channel 32, the collecting inner shell 33, the filter plate 331, the air holes 332, the clamping grooves 333, the slide ways 334, the material receiving space 34, the collecting device cover 35, the slide ways 351, the collecting device main body 36, the filter cavity 37, the feeding connecting pipe 38, the air pipes 39 and the collecting outer shell 310;

a converter power output motor 4, a converter power output gear 41, a converter power input gear 42;

conversion core 5, accommodating cavity 51, barrel material port 511, barrel air hole 512, barrel end plate 513, air channel 53, connecting rod 54, side rod 55;

A rotating shaft plate 6, a cover structure 61, a concave structure 611, a rotating shaft rod 62;

a rotary core 7, a side hole 71, a connecting groove 72, and a partition plate 73;

a connecting member 8, a front connecting pipe 81, a rear connecting pipe 82, a mounting plate 83, a mounting surface 831, a first through hole 832, a second through hole 833;

a transducer housing 9, a transducer cap 91, a mounting cavity 92;

a sterile protective sleeve 10;

a delivery pipe 11;

the outer cutter tube 12, the cutter point 121, the cutting groove 122, the outer cutter tube seat 123, the inner cutter insert 124, the transmission nut 125 and the input gear 126;

an inner cutter tube 13, an inner cutter power output gear 131, an inner cutter power output motor 132;

a cable 14;

front accommodation chamber a, rear accommodation chamber B.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The core of the invention is to provide a biopsy collection system which is more convenient to use.

Fig. 1-32 illustrate the basic structure of one embodiment of a biopsy collection system provided by the present invention, including a needle and a tissue sample holder assembly, wherein the needle is configured to collect and transfer a tissue sample to the tissue sample holder assembly.

The tissue sample holder assembly comprises in particular a housing 2, an inner cutter tube 13, a switching device, a collecting device 3 and a vacuum tube 1, the needle being arranged on the inner cutter tube 13.

The outlet of the inner cutter tube 13 is connected to the feed channel 31 of the collecting device 3 via a switching device, and the suction channel 32 of the collecting device 3 is connected to one port of the vacuum tube 1.

As shown in fig. 5 to 8, the conversion means includes a converter and a conversion rotation driving means. The converter is connected to an output shaft of the conversion rotation driving device, and optionally, the conversion rotation driving device is a converter power output motor 4, which is in transmission connection with the converter through a gear structure, and the converter power output motor 4 drives the converter to rotate through the gear structure. In the converter, the axial direction is parallel to the rotation center line of the output shaft of the conversion rotation driving device.

The transducer comprises two receiving cavities 51, the receiving cavities 51 being used for temporarily storing tissue samples. The two accommodating chambers 51 are communicated through the air passage 53, and as shown in fig. 8 and 14, one ends of the two accommodating chambers 51, i.e., the left end in fig. 8, are communicated through the air passage 53, and the other ends of the two accommodating chambers 51, i.e., the right end in fig. 8, are respectively provided with the cylinder ports 511. In use, the conversion rotation driving means drives the converter to rotate so that the two accommodation chambers 51 alternately serve as the front accommodation chamber a and the rear accommodation chamber B. Preferably, the front accommodation chamber a and the rear accommodation chamber B are 180 ° apart, and the switching rotation driving means switches the positions of the two accommodation chambers 51 by driving the switching rotation driving means to rotate 180 °.

As shown in fig. 8, the solid lines with arrows indicate the movement direction of the sample, and the dashed lines with arrows indicate the movement direction of the gas.

For the movement of the gas, the gas enters the cylinder material port 511 on the front accommodating cavity A, the air passage 53, the rear accommodating cavity B and the cylinder material port 511 on the rear accommodating cavity B from the inner cutter tube 13, then enters the collecting device 3 through the feeding channel 31, and forms a gas passage for the unidirectional flow of the gas through the two accommodating cavities 51.

For the movement of the sample, after the tissue sample is cut off and then absorbed by the inner cutter tube 13, the tissue sample enters the front accommodating cavity A from the inner cutter tube 13 through the cylinder body material opening 511 of the accommodating cavity 51 serving as the front accommodating cavity A, temporary storage is carried out in the front accommodating cavity A, the conversion rotation driving device drives the converter to rotate, the accommodating cavity 51 with the sample is switched to be used as the rear accommodating cavity B, meanwhile, the accommodating cavity 51 originally used as the rear accommodating cavity B is switched to be used as the front accommodating cavity A, after the switching, the sample temporarily stored in the front and rear accommodating cavities B enters the collecting device 3 from the cylinder body material opening 511 of the current rear accommodating cavity B, and the current front accommodating cavity A can continue to collect the sample.

In this embodiment, based on the arrangement of the converter and the conversion rotation driving device in the conversion device, the two accommodating chambers 51 in the converter can adjust the transmission direction of the sample, so that after the sample enters one accommodating chamber 51, the sample can still be removed from the port which has previously entered the accommodating chamber 51 after the conversion rotation driving device drives the converter to rotate, which is equivalent to making the entering direction and the removing direction of the sample opposite, so that the movement direction of the sample can be adjusted according to the requirement, the sample does not need to always move according to one direction, the positions of different components in the conversion device can be set according to the requirement, and accordingly, the collecting device 3 does not need to be arranged behind the biopsy collecting system as in the prior art, for example, the collecting device 3 can be arranged in front, so that the sample can be sampled from the sample and the collecting device 3 can be replaced, thereby making the biopsy collecting system more convenient to use.

In particular, since in the converter, after the tissue sample enters the accommodating cavity 51 through the barrel material opening 511 of one accommodating cavity 51, the converter is still moved out of the barrel material opening 511 of the accommodating cavity 51 through the position switching of the accommodating cavity 51, the sample does not need to be turned inside the converter, and for the harder diseased tissue sample, the sample is prevented from being blocked in the converter to affect the sample collection efficiency.

Further, as shown in fig. 7, the transducer comprises a rotating core 7 and a cover structure 61. The cover structure 61 is fixed to the output shaft of the conversion rotation driving device. In the axial direction, the cover structure 61 and the rotary core 7 are sequentially disposed, one end of the rotary core 7, which is close to the cover structure 61, i.e., the left end of the rotary core 7 in fig. 8 is provided with a connecting groove 72, two side holes 71 extending in the axial direction are provided on the rotary core 7, one ends of the two side holes 71 in the axial direction are communicated through the connecting groove 72, and the other ends are provided with openings to communicate with the external space of the rotary core 7. The sealing structure 61 seals the notch of the connecting groove 72, and the connecting groove 72 after sealing forms the air passage 53. One receiving chamber 51 is provided in each side hole 71. In this embodiment, the air passage 53 is formed by the connection of the split-type cover structure 61 and the rotary core 7, which is convenient for processing.

Further, as shown in fig. 8, 22 and 23, a concave structure 611 is provided on the cover structure 61. The rotary core 7 is inserted into the concave structure 611 along the axial direction, and the rotary shaft plate 6 drives the rotary core 7 to synchronously rotate through the concave structure 611. The cover structure 61 and the rotary core 7 are connected by adopting plug-in fit, and the cover of the connecting groove 72 is conveniently assembled.

Specifically, as shown in fig. 8, the converter includes a rotation shaft plate 6. The rotating shaft plate 6 includes a connecting portion and the cover structure 61, which are fixedly connected to move synchronously. The rotating shaft plate 6 is connected with an output shaft of the conversion rotation driving device through a connecting part. More specifically, the connection portion is a rotation shaft rod 62, and the rotation shaft rod 62 is fixed at an end of the cover structure 61 axially away from the recessed structure 611, so that the rotation shaft plate 6 constitutes a T-shaped plate. Alternatively, the output shaft of the conversion rotation driving means is connected to the rotation shaft lever 62 through a gear structure.

Of course, in other embodiments, the air passages 53 may also be provided directly as hole structures machined in a unitary block.

Further, as shown in fig. 14, a cylinder end plate 513 is provided in the housing chamber 51, and cylinder air holes 512 are provided in the cylinder end plate 513. The accommodating chamber 51 is vented to the air passage 53 through the cylinder air hole 512. The tissue sample is movable by the inner cutter tube 13 towards the front receiving chamber a by the action of the vacuum, and after the tissue sample enters the front receiving chamber a, it moves up to the abutment with the barrel end plate 513 of the front receiving chamber a in the front receiving chamber a by the action of the vacuum. As shown in fig. 16, the end plate 513 is an end plate of the accommodating chamber 51 near one end of the rotating shaft plate 6, on which a plurality of cylinder air holes 512, preferably circular through holes, may be formed, and the diameter is about 1 mm. The connection groove 72 communicates with the accommodating chamber 51 through the cylinder air hole 512. Barrel end plate 513 in this embodiment is both vented and blocks tissue, effectively preventing movement of tissue samples between the two receiving chambers 51.

Further, as shown in fig. 14 to 20, the converter further includes a conversion core 5. The conversion core 5 can be rotated together by the rotation core 7. Specifically, in this embodiment, the rotary core 7, the rotary shaft plate 6 and the conversion core 5 are of a split structure, and are integrally connected by assembly; in other embodiments, the rotating core 7, the rotating shaft plate 6 and the conversion core 5 may be integrally formed; alternatively, the rotary core 7 and the conversion core 5 are integrally formed, and the rotation shaft plate 6 is assembled to the integrally formed structure; alternatively, the rotary core 7 and the rotary shaft plate 6 are integrally formed, and the conversion core 5 is assembled to the integrally formed structure.

The conversion core 5 comprises a U-shaped structure formed by two side rods 55 and a connecting rod 54 connected between the two side rods 55, wherein each side rod 55 is respectively provided with a containing cavity 51, and the two side rods 55 are respectively inserted into the two side holes 71.

Specifically, in the present embodiment, referring to fig. 8, the axial directions of the two accommodating chambers 51 are arranged in parallel, more specifically, with a plane passing through the rotation center line of the transducer as a reference plane, the two accommodating chambers 51 are respectively arranged on both sides of the reference plane, and the two accommodating chambers 51 are symmetrical with respect to the reference plane.

Of course, in other embodiments, the axial direction of the two accommodating chambers 51 may have an included angle smaller than 180 °, and accordingly, the conversion core 5 may be configured with the two side bars 55 having a V-shaped structure, and in this case, the two side bars 55 may also have an asymmetric structure. The angle θ between the axial directions of the two accommodating chambers 51 is set according to the need by changing the angle of the conveying direction, for example, in the second embodiment of fig. 33 and the third embodiment of fig. 34, the axial angle between the two accommodating chambers 51 is set to 90 °, and at this time, the rotating core, the rotating shaft plate 6, and the converting core 5 may be integrally structured, and the accommodating chambers 51 still vent with the air passage 53 through the cylinder air hole 512. The two accommodating cavities 51 of the conversion core 5 are respectively communicated with the front connecting pipe 81 and the rear connecting pipe 82, the extending directions of the front connecting pipe 81 and the rear connecting pipe 82 are the same as the extending directions of the communicated accommodating cavities 51, and the two connecting pipes are rotatably connected with the conversion core 5. As an embodiment, the two connection pipes may be fixedly connected.

In addition, in the present embodiment, two accommodating chambers 51 are spaced 180 ° apart in the circumferential direction, and then the two accommodating chambers 51 realize switching of the front accommodating chamber a and the rear accommodating chamber B by rotating the converter by 180 °. In other embodiments, the two receiving chambers 51 may be spaced at other angles, such as 160 °, and upon switching, the front receiving chamber a and the rear receiving chamber B may be switched by a first clockwise rotation of 160 °, a second counterclockwise rotation of 160 ° or a clockwise rotation of 200 °.

Preferably, in the rotary core 7, a partition plate 73 is disposed between the two side holes 71, and the partition plate 73 abuts against the connecting rod 54 in the axial direction, and as shown in fig. 14, 16 and 21, an end face J of the partition plate 73 and a surface E on the connecting rod 54 of the conversion core 5 abut in the axial direction. The connection groove 72 and the connection rod 54 are located at both sides of the separation plate 73, respectively. As shown in fig. 14, 16, 17 and 19, after the conversion core 5 and the rotation core 7 are assembled, the end face of the cylinder end plate 513 on the side lever 55 of the conversion core 5 and the end face L of the partition plate 73 of the rotation core 7 are coplanar at one end in the axial direction. Of course, in other embodiments, the connecting groove 72, the connecting rod 54 and the partition plate 73 may be sequentially disposed along the axial direction, that is, the connecting rod 54 and the partition plate 73 are reversed from left to right in the drawing based on the orientation shown in fig. 14, and at this time, the assembly of the conversion core 5 on the rotation core 7 is completed by inserting the conversion core 5 from left to right until the connecting rod 54 abuts against the partition plate 73.

In this embodiment, the two accommodating chambers 51 are formed on the structure of the conversion core 5, so that the assembly is convenient, and the assembly of the two accommodating chambers 51 is completed simultaneously after the conversion core 5 is assembled. Meanwhile, the connecting rod 54 axially abuts against the partition plate 73, so that the conversion core 5 is conveniently installed and positioned on the rotary core 7. Of course, in other embodiments, the conversion core 5 may be integrally provided with the rotation core 7, without separately providing the accommodating chamber 51, and the integrally provided conversion core 5 and rotation core 7 may constitute a part of the converter.

Further, the conversion device comprises a connector 8, the connector 8 being adapted to transfer the tissue sample of the inner cutter tube 13 to the front receiving chamber a and to transfer the tissue sample of the rear receiving chamber B to the collecting device 3. As shown in fig. 5 to 8 in particular, the connection member 8 and the rotation shaft plate 6 are located on both sides of the rotation core 7 in the axial direction, respectively.

As shown in fig. 7, the connection member 8 includes a front connection pipe 81, a rear connection pipe 82, and a mounting plate 83. One pipe orifice of the front connecting pipe 81 is connected with the outlet of the inner cutter pipe 13, and the other pipe orifice is used for connecting with the front accommodating cavity A; one nozzle of the rear connection tube 82 is for connection to the rear receiving chamber B, and the other nozzle is connected to the collecting device 3. The switching rotation driving means alternately interfaces the two receiving chambers 51 with the front connection pipe 81 and the rear connection pipe 82 by driving the switching means to rotate. By adding the connecting piece 8 to be butted between the inner cutter tube 13, the conversion core 5 and the collecting device 3, the flexibility of the position setting of the inner cutter tube 13, the conversion core 5 and the collecting device 3 can be increased.

Further, as shown in fig. 7, the connector 8 further includes a mounting plate 83. The end surface of the mounting plate 83 near the rotary core 7 is a planar mounting surface 831 perpendicular to the axial direction, as shown in fig. 11, and the end surface P near the mounting plate 83 on the rotary core 7 and the end surface G near the mounting plate 83 on the conversion core 5 form a mating surface perpendicular to the axial direction, and as shown in fig. 8, the mounting surface 831 is in contact with the mating surface in the axial direction. As another embodiment, referring to the third example in fig. 34, the end face of the mounting plate 83 near the rotating core 7 is in a non-planar structure, and the mating surface formed by the end face P near the mounting plate 83 on the rotating core 7 and the end face G near the mounting plate 83 on the conversion core 5 is also in a non-planar structure, so long as the mating surface 831 and the mating surface are guaranteed to be capable of being abutted against each other, and in the rotating process, the mating surface 831 and the mounting surface 831 may be circumferentially symmetrical along the center line, so that no large obstruction is guaranteed to be generated and the mating surface can be abutted against each other all the time. For example, one of the two is a convex spherical surface, the other is a concave spherical surface, and the two spherical surfaces are matched. Other surface shapes can be ellipsoidal or conical.

As shown in fig. 8, a first through hole 832 and a second through hole 833 are provided on the mounting plate 83. One nozzle of the front connection pipe 81 is connected to the outlet of the inner cutter pipe 13, and the other nozzle is connected to the first through hole 832 to be connected to the front receiving chamber a through the first through hole 832. One nozzle of the rear connection pipe 82 is connected to the second through hole 833, and the other nozzle is connected to the feed passage 31 to be connected to the rear receiving chamber B through the second through hole 833. The conversion rotation driving means rotates the conversion means so that the cylinder ports 511 of the two accommodation chambers 51 are alternately abutted with the first through holes 832 and the second through holes 833. One nozzle end face of the front connection pipe 81, one nozzle end face of the rear connection pipe 82, and one side face of the mounting plate 83 are arranged coplanar. Preferably, the front connection pipe 81 and the rear connection pipe 82 are rubber pipes, and the mounting plate 83 may be a rubber plate.

In this embodiment, through the setting of the mounting plate 83, when the conversion core 5 rotates to the cylinder material opening 511 of the accommodating cavity 51 and the first through hole 832 and the second through hole 833 are staggered, the mounting surface 831 can seal the cylinder material opening 511, and the mounting plate 83 is abutted to the conversion core 5 through lamination, so that the rotation of the interference converter of the connecting piece 8 can be avoided. Of course, in other embodiments, if the mounting plate 83 is not provided, it is also possible to provide a valve structure on the connection tube and the receiving chamber to close the connection tube and the receiving chamber by the valve when no ventilation is required.

Further, as shown in fig. 6 to 8, the transducer further includes a transducer housing 9 and a transducer cap 91. The converter housing 9 and the converter cap 91 are disposed in order in the axial direction and fixedly connected, specifically, an external thread of the converter housing 9 and an internal thread of the converter cap 91 are screwed, and a pressing force is provided by the screwed connection.

A mounting cavity 92 is formed between the converter housing 9 and the converter cap 91, and the receiving cavity 51 and the mounting plate 83 are built into the mounting cavity 92, specifically the conversion core 5, the rotary core 7, and the cover structure 61 are built into the mounting cavity 92. The converter housing 9 and the converter cap 91 are axially pressed onto the mounting plate 83 in the accommodating cavity 51, the rotating shaft plate 6 is connected with the conversion rotation driving device through the through hole on the converter housing 9, and the front connecting pipe 81 and the rear connecting pipe 82 extend out of the mounting cavity 92 through the through hole on the converter cap 91. In addition, the converter housing 9 and the rotation shaft plate 6 may be fixedly connected, so that the converter housing 9, the converter cap 91 and the rotation shaft plate 6 rotate synchronously.

By the pressing force of the converter housing 9 and the converter cap 91, the fitting degree of the conversion core 5, the rotation core 7 and the mounting plate 83 can be ensured, and the front connecting pipe 81 of the barrel material port 511 and the butt joint of the barrel material port 511 and the rear connecting pipe 82 of the other barrel material port 511 and the butt joint of the barrel material port can still keep sealing when rotating.

Further, as shown in fig. 2, the collecting device 3 is located at the front end of the housing 2, and the collecting device 3 is externally located on the housing 2, so as to facilitate real-time observation of the tissue sample collected in the collecting device 3. Preferably, the collection device 3 has a certain transparency, visible from the outside, to facilitate direct observation of the amount of tissue sample collected in the collection device 3. The color of the collecting device 3 can be set as desired.

In addition, prior to the operation, the physician may use the sterile protective sheath 10 to cover the non-sterile housing 2 and the cable 14 extending from the housing 2 to ensure that the operation is performed in a sterile condition. At this time, the collecting device 3 is exposed outside the aseptic protection sleeve 10, so that the sample can be observed and taken out at any time, and the conditions that the aseptic protection sleeve 10 is used in the operation process, the sample cut each time can be observed and the sample can be taken out at any time can be satisfied.

Further, as shown in fig. 2, a part of the wall surface of the front end surface of the housing 2 is recessed rearward to form a recessed surface 21, and the collecting device 3 is provided in the recessed surface 21. Wherein the rear connection pipe 82 is connected to the feed connection pipe 38 through the delivery pipe 11. In addition, both the inner cutter tube 13 and the delivery tube 11 are located within the housing 2. The inner cutter tube 13 and the delivery tube 11 need to be of straight tube structure, and can be blocked in the bent tube due to high tissue hardness. In addition, the straight pipe limits the position of the collecting device 3, is arranged at the side of the shell 2, and is designed at the left side of the shell 2 in consideration of the right hand holding of a doctor, so that the collecting device 3 is convenient to observe. Of course, in other embodiments, the collecting device 3 may be designed to be placed under or to the right of the housing 2.

Further, the collection device 3 is provided with a collection cavity, so that the sample can be prevented from falling out of the collection device 3. The collecting chamber is internally provided with a filter plate 331, a space on one side of the filter plate 331 in the collecting chamber forms a material receiving space 34, the material receiving space 34 and the feeding channel 31 are positioned on the same side of the filter plate 331, the air suction channel 32 is positioned on the other side of the filter plate 331, as shown in fig. 26, the material receiving space 34 and the feeding channel 31 are positioned on the upper side of the filter plate 331, and the air suction channel 32 is positioned on the lower side of the filter plate 331. After flowing out of the converting device, the tissue sample in the inner cutter tube 13 enters the material receiving space 34 through the material feeding channel 31, and the tissue is specifically accommodated and stored in the material receiving space 34, but does not enter the other side of the filter plate 331 under the blocking of the filter plate 331.

As shown in fig. 26, the filter plate 331 is provided with ventilation holes 332, alternatively, the ventilation holes 332 are round holes with the diameter of 1±0.3mm, and different ventilation holes 332 are spaced by 0.5±0.3mm and uniformly distributed throughout the filter plate 331, so that fine holes are distributed throughout the filter plate 331. The gas in the inner cutter tube 13 can enter the material receiving space 34 through the conversion device and the feeding channel 31 in sequence, and then enter the vacuum tube 1 through the air holes 332 and the air suction channel 32 in sequence.

In this embodiment, after the inner cutter tube 13 samples, for the movement of the gas, under the negative pressure effect of the vacuum tube 1, the gas sequentially enters the feeding channel 31 through the inner cutter tube 13 and the conversion device, and then flows to the air suction channel 32 through the air holes 332 on the material receiving space 34 and the filter plate 331, and then enters the vacuum tube 1; for the movement of the sample, the tissue sample in the inner cutter tube 13 enters the feeding channel 31 through the conversion device and falls into the receiving space 34, and the tissue sample cannot cross the filter plate 331 and enter the vacuum tube 1 through the filtering and blocking functions of the filter plate 331, so that the sample can be effectively prevented from entering the vacuum tube 1, the vacuum tube 1 is prevented from being blocked by the sample, and the operation can be continuously performed.

Further, as shown in fig. 22 to 24, the collecting device 3 includes a collecting outer shell 310 and a collecting inner shell 33, the collecting inner shell 33 is provided in the collecting outer shell 310, preferably, the collecting inner shell 33 is detachably provided in the collecting outer shell 310, so as to replace the collecting inner shell 33 or facilitate taking out a sample from the collecting inner shell 33, specifically, in use, the collecting inner shell 33 is removed and replaced after the collecting is full, and the removed collecting inner shell 33 holds tissues for pathological examination.

The part of the plate surface of the collecting inner shell 33 is a filter plate 331, and a space between the collecting inner shell 33 and the collecting outer shell 310 at the other side of the filter plate 331 forms a filter cavity 37, and the filter cavity 37 can enable gas to smoothly flow out of the air suction channel 32, so that smooth transmission of negative pressure is ensured.

Preferably, the filter plate 331 is disposed at the bottom of the receiving space 34, and accordingly, in this embodiment, since the filter plate 331 is a plate surface of the collecting inner housing 33, the filter plate 331 is specifically disposed on a bottom plate of the collecting inner housing 33. At this time, the receiving space 34 is located above the filter cavity 37, so that a part of unwanted substances in the receiving space 34, such as blood, can enter the filter cavity 37 through the air holes 332 by means of gravity. Optionally, the height of the filter chamber 37 is in the range of 2-3mm to keep the structure compact, and 2mm is the bottom limit to ensure that the negative pressure is smooth. Preferably, the bottom of the suction channel 32 is aligned with the bottom of the collection housing 310.

Of course, in other embodiments, the receiving space 34 and the filter chamber 37 may be arranged in parallel in the horizontal direction.

In this embodiment, the material receiving space 34 is disposed in the inner collecting shell 33, so that a doctor can directly take out the inner collecting shell 33 to obtain the tissue samples collected therein, which is convenient for the doctor to operate and judge the operation progress and the illness state.

Further, as shown in fig. 24 to 26, the collecting device 3 includes a collecting device cover 35 and a collecting device main body 36 having one side opened, the collecting device cover 35 is detachably capped at the opening of the collecting device main body 36, and a space between the collecting device cover 35 and the collecting device main body 36 constitutes a collecting chamber. In the present embodiment, the collecting outer housing 310 and the collecting inner housing 33 are constituent parts of the collecting device body 36, and the collecting outer housing 310 and the collecting inner housing 33 are each provided with an opening to constitute the opening of the collecting device body 36. Preferably, the top of the collection device body 36 is provided with an opening.

Optionally, the opening of the collecting device body 36 is provided with a latch 333, and the collecting device cover 35 is slidably engaged with the latch 333. The detachable connection of the collection device cover 35 and the collection device body 36 facilitates sampling.

For the setting of the collecting device cover 35, in the sliding direction perpendicular to the collecting device cover 35, that is, in the left-right direction in fig. 28, the two ends of the collecting device cover 35 are respectively provided with the sliding grooves 351, and the two sliding grooves 351 are respectively slidably engaged on the sliding ways 334 of the collecting inner shell 33, and the collecting device cover 35 is pulled along the sliding direction of the collecting device cover 35 (that is, in the left-right direction in fig. 26), so that the collecting device cover 35 can be lifted, and the sample can be taken out conveniently.

Wherein, with reference to fig. 24, regarding the shape of the collecting device 3, it is set to a flat shape, specifically, the length of the collecting device 3 (i.e. the sliding direction of the collecting device cover 35) is greater than the thickness of the collecting device 3 (perpendicular to the sliding direction of the collecting device cover 35 and the depth direction of the collecting device 3), and the feeding channel 31 and the air suction channel 32 are both provided at one end of the collecting device 3 in the length direction, so as to facilitate the collection of tissues and the reasonable setting of the size of the collecting device 3, which is beneficial to realizing the compactness of the product layout. Of course, in other embodiments, the collecting device 3 may also be provided in a cube or other shape.

Further, as shown in fig. 24, the feed connection pipe 38 and the gas pipe 39 are provided protruding on the outer surface of the collecting device 3, and specifically, the feed connection pipe 38 and the gas pipe 39 are provided protruding on the outer surface of the collecting device body 36. The feed connection 38 and the gas pipe 39 are arranged on the housing 2, in particular by means of a plug-in fit. In addition, the connection between the collecting device body 36 and the housing 2 can be reinforced by gluing and fastening.

Wherein the feed channel 31 comprises a feed nipple 38 and the suction channel 32 comprises a gas pipe 39, i.e. the feed nipple 38 is a constituent of the feed channel 31 and the gas pipe 39 is a constituent of the suction channel 32. Specifically, since the collecting device 3 in the present embodiment includes the collecting outer casing 310 and the collecting inner casing 33 built in the collecting outer casing 310, at this time, the feed passage 31 is a structure penetrating both the collecting inner casing 33 and the collecting outer casing 310, the portion penetrating the collecting outer casing 310 includes the feed connection pipe 38 to achieve communication of the inner space of the collecting inner casing 33 with the outside through the feed passage 31, and the suction passage 32 is a structure penetrating only the collecting outer casing 310, the portion penetrating the collecting outer casing 310 includes the air pipe 39 to achieve communication of the space between the collecting inner casing 33 and the collecting outer casing 310 with the outside through the suction passage 32.

The biopsy collecting system in this embodiment can be applied to a breast rotary-cut biopsy collecting system, and further includes a cutter tip 121, a cutting groove 122, an outer cutter tube 12, an outer cutter tube seat 123, an inner cutter insert, a transmission nut 125, an input gear, an inner cutter power output motor, and the like.

When in use, the actions in the operation process are as follows: the knife tip 121 pierces the skin to the tissue, which is pressed into the cutting slot 122, and the inner knife tube 13 cuts the tissue under the drive of the inner knife power take-off motor 132. The cut tissue is sucked into the front accommodating cavity A aligned with the inner cutter tube 13 through the inner cutter tube 13 due to negative pressure, then the converter is driven by the power output motor 4 of the converter to rotate 180 degrees, the original front accommodating cavity A is switched to serve as the rear accommodating cavity B, the conveying tube 11 is aligned at this time, and the tissue is sucked into the collecting device 3 through the conveying tube 11, so that the tissue visualization is realized, and the preference is realized. At the same time, the original front accommodating chamber B is aligned with the inner cutter tube 13 to be ready for receiving tissues, and the two accommodating chambers 51 alternately receive tissues and work circularly.

The tissue reaches the receiving space 34 of the collecting inner housing 33 through the delivery pipe 11 and the feeding channel 31, and other blood and gas are discharged from the collecting inner housing 33 through the air holes 332 on the filter plate 331 and reach the waste liquid tank through the vacuum pipe 1.

When taking a sample, the collection device cover 35 is lifted by hand, and the collection inner case 33 is taken out of the collection outer case 310. The collecting device cover 35 is pulled out from the collecting inner housing 33, and then the forceps are inserted into the collecting inner housing 33 to be clamped.

In the biopsy collecting system of the present embodiment, the collecting device 3 is arranged in front, a transducer is connected between the collecting device 3 and the inner cutter tube 13, the vacuum pump works, vacuum is produced in the collecting device 3, negative pressure is transmitted to the inner cutter tube 13 through the transducer, and cut tissues are sucked into the transducer. Subsequently, the transducer is rotated, and the tissue-holding chamber 51, which is otherwise in communication with the inner cutter tube 13, is rotated to communicate with the collection device, thereby transporting the tissue into the collection device 3. The system can realize continuous cutting of large sample size under the aseptic protection state, when the collecting device 3 has certain transparency, the cut tissues are convenient to observe, the operation of doctors can be simplified, the operation time is shortened, the operation time can be more focused on the operation, and the problem that the existing rear collecting device is difficult to replace after being fully collected is avoided.

In addition to the biopsy collection system, the invention also provides a biopsy collection method, and the biopsy collection system is applied. Specifically, the method comprises the following steps:

S1: and controlling the negative pressure device connected with the vacuum tube to start, and providing negative pressure to the vacuum tube.

S2: the switching rotation driving means is controlled to be activated once every set period of time so that the two accommodation chambers 51 alternately serve as the front accommodation chamber a and the rear accommodation chamber B.

Wherein the cut tissue sample enters the front accommodating cavity A through the inner knife tube 13 under the action of negative pressure, and the tissue sample in the rear accommodating cavity B enters the collecting device 3 under the action of negative pressure.

In this embodiment, the operation of the switching rotation driving device is controlled by timing, so that the working efficiency can be improved.

For the setting of the set time length, the starting time of the setting may refer to the action of the inner cutter tube 13: the inner cutter tube 13 moves in the direction of the cutter edge 121 of the outer cutter tube 12 to cut, and after the tissue is cut, the controller controls the inner cutter tube 13 to start to retreat. Due to the negative pressure in the inner cutter tube 13, the tissue is sucked into the inner cutter tube 13 and delivered to the front accommodating chamber a. When the controller starts to withdraw from the inner cutter tube 13 (the time when a withdrawal command signal is sent can be taken as a starting point, or a motion sensor capable of monitoring the movement of the inner cutter tube 13 can be arranged, the time when the motion sensor detects the actual withdrawal movement of the inner cutter tube 13 is taken as the starting point, after a set period of time, the controller controls the driving device to drive the converter to rotate, and in the set period of time, the converter is in a stay state relative to the inner cutter tube 13, namely the current front accommodating cavity A waits for the inner cutter tube 13 to transmit samples, and the stay time needs to ensure that tissues are conveyed into the front accommodating cavity A, preferably, the time is 1.5-3s.

It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.

The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The biopsy collection system and method provided by the present invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (16)

1. A biopsy collection system comprising a needle and a tissue sample holder assembly, wherein the needle is configured to collect a tissue sample and transfer the tissue sample to the tissue sample holder assembly;

the tissue sample holder assembly comprises a housing (2), an inner cutter tube (13), a conversion device, a collection device (3) and a vacuum tube (1), the needle being arranged on the inner cutter tube (13);

The conversion device comprises a converter and a conversion rotation driving device, the converter is connected to an output shaft of the conversion rotation driving device, the converter comprises two accommodating cavities (51), and the two accommodating cavities (51) are communicated through an air passage (53); the conversion rotation driving device drives the converter to rotate, so that the two accommodating cavities (51) are alternately used as a front accommodating cavity (A) and a rear accommodating cavity (B);

the gas in the inner cutter tube (13) can enter the collecting device (3) through the front accommodating cavity (A), the air passage (53) and the rear accommodating cavity (B) in sequence;

the tissue sample in the inner cutter tube (13) can enter the front accommodating cavity (A) for temporary storage, and after the front accommodating cavity (A) rotates to the rear accommodating cavity (B), the temporary stored tissue sample flows to the collecting device (3) through the rear accommodating cavity (B).

2. The biopsy collection system of claim 1, wherein the transducer comprises a rotating core (7) and a cover structure 61); one end of the rotary core (7) close to the sealing cover structure (61) is provided with a connecting groove (72), two side holes (71) extending along the axial direction are arranged on the rotary core (7), one end of the two side holes (71) in the axial direction is communicated through the connecting groove (72), and the other end is provided with an opening to be communicated with the external space of the rotary core (7); the sealing structure (61) seals the notch of the connecting groove (72) so that the connecting groove (72) after sealing forms the air passage (53); each side hole (71) is provided with one accommodating cavity (51) therein.

3. Biopsy collection system according to claim 2, wherein the transducer comprises a spindle plate (6); the rotating shaft plate (6) comprises a connecting part and a sealing cover structure (61), the connecting part is fixedly connected with the sealing cover structure (61), the sealing cover structure (61) is provided with a concave structure (611), the rotating core (7) is axially inserted into the concave structure (611), the rotating shaft plate (6) is connected with a conversion rotating driving device through the connecting part, and the rotating core (7) is driven to synchronously rotate through the concave structure (611).

4. The biopsy collection system of claim 1, wherein a barrel end plate (513) is provided on the containment chamber (51), wherein a barrel air vent (512) is provided on the barrel end plate (513), and wherein the containment chamber (51) is vented to the airway (53) through the barrel air vent (512);

after the tissue sample enters the front receiving chamber (a), it moves up to the front receiving chamber (a) against the cylinder end plate (513) of the front receiving chamber (a).

5. The biopsy collection system of claim 2, wherein the transducer further comprises a transducer core (5); the conversion core (5) comprises two side rods (55) and a U-shaped structure formed by connecting rods (54) connected between the two side rods (55), each side rod (55) is provided with one containing cavity (51) respectively, and the two side rods (55) are inserted into the two side holes (71) respectively.

6. Biopsy collecting system according to claim 1, wherein the switching device further comprises a connector (8) for transferring tissue samples of the inner cutter tube (13) to the front receiving chamber (a) and for transferring tissue samples of the rear receiving chamber (B) to the collecting device (3), the connector (8) comprising a front connecting tube (81) and a rear connecting tube (82); one pipe orifice of the front connecting pipe (81) is connected with the outlet of the inner cutter pipe (13), and the other pipe orifice is used for connecting the front accommodating cavity (A); one pipe orifice of the rear connecting pipe (82) is used for connecting the rear accommodating cavity (B), and the other pipe orifice is connected with the collecting device (3); the conversion rotation driving device enables the two accommodating cavities (51) to be alternately butted with the front connecting pipe (81) and the rear connecting pipe (82) by driving the converter to rotate.

7. The biopsy collection system of claim 6, wherein the connector (8) further comprises a mounting plate (83); a first through hole (832) and a second through hole (833) are arranged on the mounting plate (83); one pipe orifice of the front connecting pipe (81) is connected with the outlet of the inner cutter pipe (13), and the other pipe orifice is connected with the first through hole (832) so as to be connected with the front accommodating cavity (A) through the first through hole (832); a pipe orifice of the rear connecting pipe (82) is connected with the second through hole (833) so as to be connected with the rear accommodating cavity (B) through the second through hole (833), and the other pipe orifice is connected with the collecting device (3); an orifice end face of the front connecting pipe (81), an orifice end face of the rear connecting pipe (82) and one side face of the mounting plate (83) are arranged in a coplanar manner;

The conversion rotation driving device enables the two accommodating cavities (51) to be alternately butted with the first through hole (832) and the second through hole (833) by driving the converter to rotate.

8. The biopsy collection system of claim 7, wherein the transducer further comprises a transducer housing (9) and a transducer cap (91); the converter shell (9) and the converter cap (91) are sequentially arranged along the axial direction and are fixedly connected, a mounting cavity (92) is formed between the converter shell and the converter cap, the accommodating cavity (51) and the mounting plate (83) are arranged in the mounting cavity (92), the converter shell (9) and the converter cap (91) axially compress the mounting plate (83) in the accommodating cavity (51), and the front connecting pipe (81) and the rear connecting pipe (82) extend out of the mounting cavity (92) through a through hole in the converter cap (91).

9. Biopsy collecting system according to claim 1, wherein the collecting device (3) is external to the housing (2) and wherein the collecting device (3) is located at the front end of the housing (2).

10. Biopsy collecting system according to claim 9, wherein a part of the wall surface of the front end surface of the housing (2) is recessed rearwards to form a recess surface (21), the collecting device (3) being arranged in the recess surface (21).

11. Biopsy collecting system according to any one of claims 1-10, wherein the outlet of the inner cutter tube (13) is connected to the feed channel (31) of the collecting device (3) via the switching device, and wherein the suction channel (32) of the collecting device (3) is connected to a port of the vacuum tube (1); the collecting device (3) is internally provided with a collecting cavity, a filter plate (331) is arranged in the collecting cavity, a material receiving space (34) is formed in a space positioned at one side of the filter plate (331) in the collecting cavity, the material receiving space (34) and the feeding channel (31) are positioned at the same side of the filter plate (331), and the air suction channel (32) is positioned at the other side of the filter plate (331), so that tissues entering the collecting cavity through the feeding channel (31) can be accommodated in the material receiving space (34); the filter plate (331) is provided with an air hole (332), and gas in the inner cutter tube (13) can sequentially pass through the conversion device and the feeding channel (31) to enter the receiving space (34), and then sequentially pass through the air hole (332) and the air suction channel (32) to enter the vacuum tube (1).

12. The biopsy collecting system according to claim 11, wherein the collecting device (3) comprises a collecting outer shell (310) and a collecting inner shell (33), the collecting inner shell (33) being arranged in the collecting outer shell (310), a part of the plate surface of the collecting inner shell (33) being arranged as the filter plate (331), a space between the collecting inner shell (33) and the collecting outer shell (310) forming a filter cavity (37), the receiving space (34) being arranged in the collecting inner shell (33); the air suction channel (32) is arranged on the collecting outer shell (310) so as to be communicated with the filtering cavity (37) and the vacuum tube (1), and the feeding channel (31) is arranged on the collecting inner shell (33) and the collecting outer shell (310) so as to be communicated with the material receiving space (34) and the inner cutter tube (13).

13. The biopsy collecting system according to claim 11, wherein the filter plate (331) is arranged at the bottom of the receiving space (34).

14. Biopsy collecting system according to any one of claims 1-10, wherein the collecting device (3) comprises a collecting device cover (35) and a collecting device body (36) which is open on one side, the collecting device cover (35) being detachably capped to the opening of the collecting device body (36).

15. Biopsy collecting system according to any one of claims 1-10, wherein a feed nipple (38) and an air tube (39) are arranged protruding from the outer surface of the collecting device (3), wherein the feed nipple (38) and the air tube (39) are arranged on the housing (2), wherein the feed channel (31) comprises the feed nipple (38) and wherein the suction channel (32) comprises the air tube (39).

16. A biopsy collection method, wherein the biopsy collection system of any one of claims 1 to 15 is applied, the method comprising:

controlling a negative pressure device connected with the vacuum tube to start, and providing negative pressure to the vacuum tube;

controlling the switching rotation driving device to start once every set time interval so as to enable the two accommodating cavities (51) to alternately serve as the front accommodating cavity (A) and the rear accommodating cavity (B);

Wherein the severed tissue sample enters the front accommodating cavity (A) through the inner knife tube (13) under the action of the negative pressure, and the tissue sample in the rear accommodating cavity (B) enters the collecting device (3) under the action of the negative pressure.

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