Thyroid biopsy puncture rotary cutting device

Abstract

The invention provides a thyroid biopsy puncture rotary cutting device, and relates to the technical field of medical instruments. Comprising; the puncture needle is arranged at the second end of the pipe sleeve, and the rotary cutting needle penetrates through the pipe sleeve and is inserted into the puncture needle; the rotary transmission assembly is located in the pipe sleeve and is in transmission connection with the rotary cutting needle, and an output shaft of the rotary cutting driving piece can drive the rotary cutting needle to rotate around the axis of the rotary cutting needle through the rotary transmission assembly; the reciprocating transmission assembly is arranged between the pipe sleeve and the rotary transmission assembly and is in transmission connection with the rotary transmission assembly, and an output shaft of the reciprocating driving part can drive the rotary transmission assembly to reciprocate through the reciprocating transmission assembly; the storage assembly is detachably arranged on the rotary cutting needle; the negative pressure pump is communicated with the rotary cutting needle through the storage assembly, and the positive pressure pump is communicated with a gap between the puncture needle and the rotary cutting needle. The device is simple to operate, can directly cut off a small focus, reduces a wound, shortens healing time, and can be used for sampling for multiple times and collecting a sample or cut tissue.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a thyroid biopsy puncture and excision device. Background Art

[0002] Thyroid puncture is a method used to diagnose nodular thyroid disease. It is routinely used as the first step in the diagnosis process of nodular thyroid disease, and is generally completed with the help of a puncture device. On the one hand, the existing puncture device cannot complete multiple sampling and sample collection and storage in one puncture process; on the other hand, due to its complex structure, the sampling process is complicated to operate; on the third hand, since there is no rotary cutting structure, if a smaller lesion is found during the puncture process, it cannot be directly removed, and it is necessary to surgically remove the smaller lesion after the puncture, resulting in a larger wound and a longer healing time. Summary of the invention

[0003] The object of the present invention is to provide a thyroid biopsy puncture and excision device, which is easy to operate and can directly excise smaller lesions, reduce wounds, shorten healing time, and can take samples multiple times and collect samples or excised tissues.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Thyroid biopsy puncture and excision device, including;

[0006] Pipe sleeve;

[0007] The puncture assembly comprises a puncture needle and a rotary cutting needle, wherein the first end of the puncture needle is arranged at the second end of the tube sleeve, the second end of the puncture needle is provided with a puncture window, and the first end of the rotary cutting needle passes through the tube sleeve and is inserted into the puncture needle;

[0008] The rotary cutting mechanism comprises a rotary cutting drive and a rotary transmission assembly, wherein the rotary transmission assembly is arranged in the sleeve and is connected to the middle part of the rotary cutting needle through the rotary transmission assembly, and the output shaft of the rotary cutting drive can drive the rotary cutting needle to rotate around the axis of the rotary cutting needle through the rotary transmission assembly;

[0009] The reciprocating mechanism comprises a reciprocating driving member and a reciprocating transmission assembly, wherein the reciprocating transmission assembly is arranged between the pipe sleeve and the rotating transmission assembly and is in transmission connection with the rotating transmission assembly, and the output shaft of the reciprocating driving member can drive the rotating transmission assembly to reciprocate along the H direction through the reciprocating transmission assembly;

[0010] A storage component, detachably disposed at the second end of the rotary cutting needle;

[0011] The pressure stabilizing assembly includes a positive pressure pump and a negative pressure pump, wherein the air outlet of the negative pressure pump is connected to the second end of the rotary cutting needle through the storage assembly, and the air outlet of the positive pressure pump is connected to the gap between the puncture needle and the rotary cutting needle.

[0012] As a further technical solution, the rotary transmission assembly includes a rotary transmission wheel set, a rotary sleeve, a fixed sleeve and a rotary limiter;

[0013] The rotating sleeve is movably sleeved on the middle part of the rotary cutting needle, and the first end of the rotating sleeve is connected to the output shaft of the rotary cutting drive member through the rotating transmission wheel group, the fixed sleeve is fixedly sleeved on the middle part of the rotary cutting needle, and the first end of the fixed sleeve is inserted into the second end of the rotating sleeve, and the rotation limiter is arranged between the second end of the rotating sleeve and the first end of the fixed sleeve to limit the relative rotation of the two.

[0014] As a further technical solution, the reciprocating transmission assembly includes a reciprocating transmission wheel set, a first reciprocating sleeve and a second reciprocating sleeve, and a reciprocating limiter;

[0015] The first reciprocating sleeve is sleeved on the rotating sleeve, and the middle limit of the rotating sleeve is connected to the first reciprocating sleeve, the first end of the first reciprocating sleeve is connected to the reciprocating drive member through the reciprocating transmission wheel group, the second reciprocating sleeve is sleeved on the fixed sleeve, and the first end of the second reciprocating sleeve is threadedly connected to the second end of the first reciprocating sleeve, the second end of the second reciprocating sleeve is connected to the fixed sleeve, and the reciprocating limiter is arranged in the sleeve and can limit the second reciprocating sleeve from rotating around the axis of the rotary cutting needle.

[0016] As a further technical solution, the second end of the fixed sleeve is provided with a transmission groove extending along its circumference, and the second end of the second reciprocating sleeve is provided with a transmission flange. When the second reciprocating sleeve is sleeved on the fixed sleeve, the transmission flange is located in the transmission groove.

[0017] As a further technical solution, the thyroid biopsy puncture and rotary cutting device further includes a puncture rotation mechanism, and the puncture rotation mechanism includes a puncture drive member and a puncture transmission assembly;

[0018] The puncture transmission assembly is arranged between the tube sleeve and the reciprocating transmission assembly, and is transmission-connected to the first end of the puncture needle. The output shaft of the puncture drive member can drive the puncture needle to rotate around the axis of the puncture needle through the puncture transmission assembly.

[0019] As a further technical solution, the puncture transmission assembly includes a puncture transmission wheel set, a first puncture cannula, a second puncture cannula and a third puncture cannula;

[0020] The first puncture sleeve is sleeved on the first reciprocating sleeve, and the middle limit of the first reciprocating sleeve is connected to the first puncture sleeve, the middle limit of the first puncture sleeve is connected to the first end of the sleeve, and the first end of the first puncture sleeve is connected to the puncture drive member through the puncture transmission wheel group;

[0021] The second puncture sleeve is sleeved on the second reciprocating sleeve, and the first end of the second puncture sleeve is transmission-connected to the second end of the first puncture sleeve, the second end of the first reciprocating sleeve abuts against the first end of the second puncture sleeve, and the reciprocating limiter is arranged on the inner wall of the second puncture sleeve;

[0022] The third puncture sleeve is transmission-connected to the second end of the second puncture sleeve and is limited to the second end of the sleeve. The first end of the puncture needle is connected to the third puncture sleeve.

[0023] As a further technical solution, a positive pressure chamber connected to the third puncture sleeve is provided between the third puncture sleeve and the inner wall of the sleeve, a connecting port connected to the positive pressure chamber is provided on the sleeve, and the air outlet of the positive pressure pump is connected to the connecting port.

[0024] As a further technical solution, the puncture transmission assembly further includes a first sealing ring and two second sealing rings, and in the direction from the third puncture sleeve to the second puncture sleeve, the third puncture sleeve is provided with an abutment portion and a connection portion with a diameter smaller than the abutment portion;

[0025] The first sealing ring is sealingly arranged between the connecting portion and the rotary cutting needle. Along the H direction, two second sealing rings are spaced apart between the abutting portion and the inner wall of the sleeve to form the positive pressure chamber between the abutting portion and the sleeve.

[0026] As a further technical solution, the storage component includes a storage component, a storage connector and a storage seal. A storage cavity is provided inside the storage component. The storage component is detachably connected to the second end of the rotary cutting needle through the storage connector. The storage seal is sealed between the storage connector and the rotary cutting needle, and the air outlet of the negative pressure pump is connected to the storage cavity.

[0027] As a further technical solution, the storage component also includes a filter element and an auxiliary connecting element. The side wall of the storage element facing away from the rotary cutting needle is provided with a connecting port. The filter element is detachably connected to the connecting port through the auxiliary connecting element. When the auxiliary connecting element is connected to the connecting port, the side of the filter element facing away from the auxiliary connecting element is sleeved on the second end of the rotary cutting needle, and divides the storage cavity into an upper collection area and a lower liquid area.

[0028] Compared with the prior art, the thyroid biopsy puncture and excision device provided by the present invention has the following technical advantages:

[0029] 1. Since the puncture needle is arranged at the second end of the sleeve, the first end of the rotary cutting needle is inserted into the puncture needle by passing through it, and a storage component and a voltage stabilizing component are arranged corresponding to the rotary cutting needle. Therefore, when thyroid biopsy sampling is required, the second end of the puncture needle is inserted into the thyroid gland, and the puncture window arranged at the second end of the puncture needle is placed in the thyroid gland, and then the negative pressure pump is started to extract the sample through the puncture needle and the rotary cutting needle, and the extracted sample is sucked into the storage component under the action of negative pressure, and one sampling can be completed; in this process, the positive pressure pump can be started and adjusted according to the actual sampling situation to adjust the positive and negative pressure balance at the puncture window, so as to ensure the puncture effect. If multiple sampling is required, the storage component currently storing the puncture sample can be removed from the second end of the rotary cutting needle; then the new storage component is connected to the second end of the rotary cutting needle, and the negative pressure pump is started for secondary sampling. During the entire process, there is no need to remove the biopsy device from the current thyroid gland, so multiple sampling and preservation of multiple samples can be achieved; at the same time, the entire process uses a positive pressure pump and a negative pressure pump to complete the sampling and collection of puncture samples, and the positive pressure pump and the negative pressure pump are easy to operate, so the entire sampling and puncture sample collection process is simple and convenient to operate, and the operator can complete the sampling and puncture sample collection with one hand.

[0030] 2. Since the rotary transmission assembly is connected to the rotary cutting needle and the rotary cutting drive is started, the rotary transmission assembly can drive the rotary cutting needle to rotate around the axis of the rotary cutting needle; at the same time, since the reciprocating transmission assembly is connected to the rotary transmission assembly and the reciprocating drive is driven, the rotary transmission assembly can be driven to reciprocate along the H direction through the reciprocating transmission assembly, thereby driving the rotary cutting needle to reciprocate along the H direction. Therefore, during the process of puncturing and sampling the thyroid gland by the biopsy device, if a smaller lesion is encountered, the lesion can be directly removed, and the removed tissue is sucked into the storage assembly under the negative pressure of the negative pressure pump. Specifically, after encountering a smaller lesion, the biopsy device is rotated so that the puncture window corresponds to the lesion. Then, according to the condition of the lesion, the rotary cutting drive is started, and the rotary cutting drive drives the rotary cutting needle to rotate around the axis direction of the rotary cutting needle through the rotary transmission assembly, so that the rotary cutting needle and the puncture needle rotate relative to each other, thereby changing the size of the excision port formed by the rotary cutting needle and the puncture window in the circumferential direction according to the size of the lesion, thereby rotating and removing the lesion directly opposite to the excision port; or, starting the reciprocating drive, the reciprocating drive drives the rotary transmission assembly to reciprocate along the H direction through the reciprocating transmission assembly, thereby driving the rotary cutting needle to reciprocate along the H direction, thereby changing the size of the excision port formed by the rotary cutting needle and the puncture window in the axial direction according to the size of the lesion, thereby directly cutting and removing the lesion directly opposite to the excision port. Then, the positive pressure pump and the negative pressure pump are started to adjust the positive and negative pressures at the excision port so as to suck the excised tissue into the storage assembly. After that, the current storage assembly is removed to collect the excised tissue. Finally, a new storage component is connected to the second end of the rotary cutting needle, and the rotary cutting drive member and the reciprocating drive member are started to remove the next smaller lesion and collect the removed tissue. During the whole process, firstly, the size of the excision port can be adjusted by means of the rotary cutting drive and the reciprocating drive, and the lesion opposite to the excision port can be excised; the excised tissue can be collected by means of the positive pressure pump and the negative pressure pump, and the rotary cutting drive, the reciprocating drive, the positive pressure pump and the negative pressure pump are simple to operate when controlling their states, so the whole operation of excising a smaller lesion and collecting the excised tissue is simple and convenient, and after the lesion is excised, the excised tissue can be collected in time by cooperating with the positive pressure pump and the negative pressure pump to avoid the adhesion of the excised tissue to the wound; secondly, by replacing the storage component, the collection process of multiple excised tissues can be completed; finally, due to the rotary cutting drive and the reciprocating drive, the size of the excision port can be changed according to the size of the lesion, so that the wound can be reduced as much as possible during the process of the lesion being excised; at the same time, the excision of the smaller lesion is completed by the rotary cutting needle reciprocating along the H direction and rotating around its own axis, without the need to surgically excise the smaller lesion after the puncture, thereby further reducing the wound and shortening the healing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0032] Figure 1 is a front view of a thyroid biopsy puncture and excision device provided in an embodiment of the present invention;

[0033] Figure 2 is a cross-sectional view of a thyroid biopsy puncture and excision device provided in an embodiment of the present invention;

[0034] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0035] Figure 4 is a partial structural cross-sectional view of a thyroid biopsy puncture and excision device provided in an embodiment of the present invention;

[0036] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0037] Figure 6 yes Figure 4 A partial enlarged view of point C in the middle;

[0038] Figure 7 yes Figure 4 A partial enlarged view of point D in the middle:

[0039] Figure 8 is a cross-sectional view of a storage component in a thyroid biopsy puncture and excision device provided in an embodiment of the present invention;

[0040] Fig. 9 It is a schematic structural diagram of a rotating transmission wheel group, a reciprocating transmission wheel group and a puncture transmission wheel group in a thyroid biopsy puncture and excision device provided in an embodiment of the present invention;

[0041] Fig.10 It is a schematic structural diagram of a third puncture cannula in a thyroid biopsy puncture and rotary cutting device provided in an embodiment of the present invention;

[0042] Fig.11 It is a schematic diagram of the limiting positions of the rotating sleeve and the fixed sleeve in the thyroid biopsy puncture and excision device provided in an embodiment of the present invention;

[0043] Fig.12 It is a cross-sectional view of the second reciprocating sleeve in the thyroid biopsy puncture and excision device provided in an embodiment of the present invention.

[0044] In the figure:

[0045] 100, pipe sleeve; 110, connecting port;

[0046] 200, puncture assembly; 210, puncture needle; 211, puncture window; 220, rotary cutting needle;

[0047] 310, peeling drive member; 320, rotary transmission assembly; 321, rotary transmission wheel group; 3211, first rotary gear; 3212, second rotary gear; 3213, third rotary gear; 3214, mounting shaft; 322, rotary sleeve; 323, fixed sleeve; 3231, transmission slot; 324, rotary limiter;

[0048] 410, reciprocating drive member; 420, reciprocating transmission assembly; 421, reciprocating transmission wheel set; 4211, first reciprocating gear; 4212, second reciprocating gear; 4213, third reciprocating gear; 422, first reciprocating sleeve; 423, second reciprocating sleeve; 4231, transmission flange; 424, reciprocating limiter;

[0049] 500, storage assembly; 510, storage element; 511, storage body; 512, storage cover; 513, auxiliary sealing element; 520, storage connector; 530, storage sealing element; 540, filter element; 550, auxiliary connector;

[0050] 610, positive pressure pump; 620, negative pressure pump;

[0051] 710, puncture drive member; 720, puncture transmission assembly; 721, puncture transmission wheel group; 7211, first puncture gear; 7212, second puncture gear; 7213, third puncture gear; 722, first puncture sleeve; 723, second puncture sleeve; 724, third puncture sleeve; 7241, abutment portion; 7242, connecting portion; 725, first sealing ring; 726, second sealing ring;

[0052] 810, battery assembly; 820, central control unit; 830, supporting shell. DETAILED DESCRIPTION

[0053] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0054] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0055] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0056] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0057] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0058] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0059] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0060] Combination Figures 1 to 12 As shown, the thyroid biopsy puncture and excision device (hereinafter referred to as the biopsy device) provided in this embodiment is used to complete thyroid puncture, and during the puncture process, it can directly remove smaller lesions. The biopsy device is easy to operate, and by directly removing smaller lesions, it can reduce the wound and shorten the healing time, and can collect samples or excised tissues multiple times. The biopsy device includes a sleeve 100, a puncture assembly 200, a rotary cutting mechanism, a rotary cutting mechanism, a reciprocating mechanism, a storage assembly 500 and a voltage stabilizing assembly; the puncture assembly 200 includes a puncture needle 210 and a rotary cutting needle 220, the first end of the puncture needle 210 is arranged at the second end of the sleeve 100, the second end of the puncture needle 210 is provided with a puncture window 211, the first end of the rotary cutting needle 220 passes through the sleeve 100 and is inserted into the puncture needle 210; the rotary cutting mechanism includes a rotary cutting drive 310 and a rotary transmission assembly 320, the rotary transmission assembly 320 is arranged in the sleeve 100, and is transmission-connected to the middle part of the rotary cutting needle 220, and the output shaft of the rotary cutting drive 310 can drive the rotary cutting needle 220 through the rotary transmission assembly 320 20 rotates around the axis of the rotary cutting needle 220; the reciprocating mechanism includes a reciprocating drive member 410 and a reciprocating transmission assembly 420, the reciprocating transmission assembly 420 is arranged between the sleeve 100 and the rotating transmission assembly 320, and is connected to the rotating transmission assembly 320 in transmission, and the output shaft of the reciprocating drive member 410 can drive the rotating transmission assembly 320 to reciprocate along the H direction through the reciprocating transmission assembly 420; the storage assembly 500 is detachably arranged on the second end of the rotary cutting needle 220; the pressure stabilizing assembly includes a positive pressure pump 610 and a negative pressure pump 620, the air outlet of the negative pressure pump 620 is connected to the second end of the rotary cutting needle 220 through the storage assembly 500, and the air outlet of the positive pressure pump 610 is connected to the gap between the puncture needle 210 and the rotary cutting needle 220.

[0061] Since the puncture needle 210 is arranged at the second end of the cannula, the first end of the rotary cutting needle 220 is inserted into the puncture needle 210 by passing through, and a storage component 500 and a voltage stabilizing component are arranged corresponding to the rotary cutting needle 220. Therefore, when thyroid biopsy sampling is required, the second end of the puncture needle 210 is inserted into the thyroid gland, and the puncture window 211 arranged at the second end of the puncture needle 210 is placed in the thyroid gland, and then the negative pressure pump 620 is started to extract samples through the puncture needle 210 and the rotary cutting needle 220, and the extracted samples are sucked into the storage component 500 under the action of negative pressure, and a sampling can be completed; in this process, the positive pressure pump 610 can be started and adjusted according to the actual sampling situation to adjust the positive and negative pressure balance at the puncture window 211, so as to ensure the puncture effect. If multiple sampling is required, the storage component 500 currently storing the puncture sample can be removed from the second end of the rotary cutting needle 220; then the new storage component 500 is connected to the second end of the rotary cutting needle 220, and the negative pressure pump 620 is started to perform secondary sampling. During the whole process, multiple sampling and storage of multiple samples can be achieved without removing the biopsy device from the current thyroid gland; at the same time, the whole process is completed with the help of the positive pressure pump 610 and the negative pressure pump 620 to complete the collection of sampling and puncture samples, and the positive pressure pump 610 and the negative pressure pump 620 are easy to operate when they are operated, so the whole sampling and puncture sample collection process is simple and convenient to operate, and the operator can complete the sampling and puncture sample collection with one hand.

[0062] Since the rotary transmission assembly 320 is connected to the rotary cutting needle 220 by transmission, and the rotary cutting drive member 310 is started, the rotary transmission assembly 320 can drive the rotary cutting needle 220 to rotate around the axis direction of the rotary cutting needle 220; at the same time, since the reciprocating transmission assembly 420 is connected to the rotary transmission assembly 320 by transmission, and the reciprocating drive member 410 is driven, the rotary transmission assembly 320 can be driven to reciprocate along the H direction through the reciprocating transmission assembly 420, thereby driving the rotary cutting needle 220 to reciprocate along the H direction. Therefore, during the process of the biopsy device puncturing and sampling the thyroid gland, if a smaller lesion is encountered, the lesion can be directly removed, and under the negative pressure of the negative pressure pump 620, the removed tissue is sucked into the storage assembly 500. Specifically, after encountering a smaller lesion, the biopsy device is rotated so that the puncture window 211 corresponds to the lesion. Then, according to the condition of the lesion, the rotary cutting drive 310 is started, and the rotary cutting drive 310 drives the rotary cutting needle 220 to rotate around the axis direction of the rotary cutting needle 220 through the rotary transmission assembly 320, so that the rotary cutting needle 220 and the puncture needle 210 rotate relative to each other, thereby changing the size of the excision port formed by the rotary cutting needle 220 and the puncture window 211 in the circumferential direction according to the size of the lesion, so as to rotate and remove the lesion directly opposite to the excision port; or, the reciprocating drive 410 is started, and the reciprocating drive 410 drives the rotary transmission assembly 320 to reciprocate along the H direction through the reciprocating transmission assembly 420, thereby driving the rotary cutting needle 220 to reciprocate along the H direction, thereby changing the size of the excision port formed by the rotary cutting needle 220 and the puncture window 211 in the axial direction according to the size of the lesion, so as to directly cut and remove the lesion directly opposite to the excision port. Then, the positive pressure pump 610 and the negative pressure pump 620 are started to adjust the positive and negative pressures at the excision port so as to suck the excised tissue into the storage assembly 500. Then, the current storage assembly 500 is removed to collect the excised tissue. Finally, a new storage assembly 500 is connected to the second end of the rotary cutting needle 220, and the rotary cutting drive member 310 and the reciprocating drive member 410 are started to excise the next smaller lesion and collect the excised tissue.During the whole process, firstly, the size of the excision port can be adjusted by using the rotary cutting drive 310 and the reciprocating drive 410, and the lesion opposite to the excision port can be excised; the excised tissue can be collected by using the positive pressure pump 610 and the negative pressure pump 620, and the rotary cutting drive 310, the reciprocating drive 410, the positive pressure pump 610 and the negative pressure pump 620 are easy to operate when controlling their states, so the whole operation of excising a smaller lesion and collecting the excised tissue is simple and convenient, and after the lesion is excised, the excised tissue can be collected in time by cooperating with the positive pressure pump 610 and the negative pressure pump 620. , to avoid the adhesion of the excised tissue to the wound; secondly, by replacing the storage component 500, the collection process of multiple excised tissues can be completed; finally, due to the rotary cutting drive member 310 and the reciprocating drive member 410, the size of the excision port can be changed according to the size of the lesion, so that the wound can be reduced as much as possible during the lesion excision process; at the same time, the rotary cutting needle 220 reciprocates along the H direction and rotates around its own axis to complete the excision of smaller lesions, without the need to surgically excise the smaller lesion after the puncture, thereby further reducing the wound and shortening the healing time.

[0063] The specific structure and working principle of the positive pressure pump 610 and the negative pressure pump 620 are not the technical focus of this embodiment and can be set according to the existing technology, and are not specifically limited here.

[0064] The biopsy device provided in this embodiment also includes a battery assembly 810, a central control unit 820 and a supporting shell 830. The battery assembly 810, the central control unit 820, the sleeve 100, the puncture assembly 200, the rotary cutting mechanism, the rotary cutting mechanism, the reciprocating mechanism, the storage assembly 500 and the voltage stabilizing assembly are all arranged in the supporting shell 830 to ensure the structural completeness of the biopsy device and facilitate the author to take and use it. The battery assembly 810 is electrically connected to the rotary cutting drive member 310 and the reciprocating drive member 410, and provides driving force for the rotary cutting drive member 310 and the reciprocating drive member 410. The central control unit 820 is communicatively connected to the positive pressure pump 610, the negative pressure pump 620, the rotary cutting drive member 310 and the reciprocating drive member 410, and a plurality of control switches (not shown in the figure) and a reset button (not shown in the figure) are provided on the central control unit 820 corresponding to the positive pressure pump 610, the negative pressure pump 620, the rotary cutting drive member 310 and the reciprocating drive member 410. By pressing the corresponding control switch, the corresponding pump body or drive member is controlled, and by pressing the reset button, the entire biopsy device is restored to its original state. In this way, during puncture or resection of smaller lesions, the operator can complete the corresponding operation by pressing the corresponding control switch with one hand, thereby further improving the convenience during puncture or lesion resection.

[0065] Preferably, the rotating transmission assembly 320 includes a rotating transmission wheel group 321, a rotating sleeve 322, a fixed sleeve 323 and a rotating limit piece 324; the rotating sleeve 322 is movably sleeved in the middle of the rotary cutting needle 220, and the first end of the rotating sleeve 322 is connected to the output shaft of the rotary cutting drive member 310 through the rotating transmission wheel group 321, the fixed sleeve 323 is fixedly sleeved in the middle of the rotary cutting needle 220, and the first end of the fixed sleeve 323 is inserted into the second end of the rotating sleeve 322, and the rotating limit piece 324 is arranged between the second end of the rotating sleeve 322 and the first end of the fixed sleeve 323 to limit the relative rotation of the two.

[0066] The cam 324 is provided with a plurality of first and second cams 326 which are provided at the cam face 328 to prevent the cam 326 from rotating. In this way, after the rotary cutting drive component 310 is started, the output shaft of the rotary cutting drive component 310 drives the rotating sleeve 322 to rotate along its axial direction through the rotating transmission wheel group 321, and drives the fixed sleeve 323 to rotate along its axial direction through the limiting protrusion and the corresponding first limiting groove, thereby driving the rotary cutting needle 220 to rotate around the axis of the rotary cutting needle 220, so as to complete the adjustment of the resection port size and the resection process of smaller lesions.

[0067] The rotating transmission wheel group 321 specifically includes a first rotating gear 3211, a second rotating gear 3212, a third rotating gear 3213 and a mounting shaft 3214. The mounting shaft 3214 is connected to the support shell 830 in a rotation corresponding to the first end of the rotating sleeve 322; the first rotating gear 3211 is fixedly sleeved on the output shaft of the rotary cutting drive member 310, the second rotating gear 3212 is fixedly sleeved on the first end of the mounting shaft 3214, and the third rotating gear 3213 is fixedly sleeved on the first end of the rotating sleeve 322. The second rotating gear 3212 is meshed with the first rotating gear 3211 and the second rotating gear 3212. In this way, when the rotary cutting drive member 310 is running, the three gears can cooperate to drive the rotating sleeve 322 to rotate around the axis of the rotary cutting needle 220 and ensure transmission accuracy. In this embodiment, the rotary cutting drive 310 is configured as a forward and reverse motor to ensure that the rotary cutting needle 220 can be driven to rotate clockwise or counterclockwise around the axis of the rotary cutting needle 220, thereby ensuring the puncture effect and the removal effect of smaller lesions. In addition to gear transmission, in other embodiments, the rotating transmission wheel group 321 can also be configured as a sprocket drive or a belt drive. For example, the installation shaft 3214 is no longer provided, and the first rotating wheel is directly fixedly sleeved on the output shaft of the rotary cutting drive 310, and the second rotating wheel is fixedly sleeved on the first end of the rotating sleeve 322. A transmission chain or a transmission belt is provided between the first rotating wheel and the second rotating wheel, thereby realizing the sprocket drive or belt drive between the rotary cutting drive 310 and the rotating sleeve 322.

[0068] Preferably, the reciprocating transmission assembly 420 includes a reciprocating transmission wheel group 421, a first reciprocating sleeve 422, a second reciprocating sleeve 423, and a reciprocating limit piece 424; the first reciprocating sleeve 422 is arranged on the rotating sleeve 322, and the middle limit of the rotating sleeve 322 is connected to the first reciprocating sleeve 422, the first end of the first reciprocating sleeve 422 is connected to the reciprocating drive member 410 through the reciprocating transmission assembly 420, the second reciprocating sleeve 423 is arranged on the fixed sleeve 323, and the first end of the second reciprocating sleeve 423 is threadedly connected to the second end of the first reciprocating sleeve 422, the second end of the second reciprocating sleeve 423 is connected to the fixed sleeve 323, and the reciprocating limit piece 424 is arranged in the sleeve 100, and can limit the second reciprocating sleeve 423 from rotating around the axis of the rotary cutting needle 220.

[0069] Specifically, two limiting steps protruding in the axial direction of the first reciprocating sleeve 422 are provided in the middle part of the first reciprocating sleeve 422, and the two limiting steps are arranged at intervals along the H direction, and both cooperate with the first reciprocating sleeve 422 to form a second limiting groove, and a limiting flange is provided in the middle part of the rotating sleeve 322. When the first reciprocating sleeve 422 is arranged on the rotating sleeve 322, the limiting flange is limitedly connected to the second limiting groove; through the cooperation between the limiting flange and the second limiting groove, on the one hand, the relative position of the first reciprocating sleeve 422 and the rotating sleeve 322 in the H direction is limited, and relative displacement of the two in the H direction is avoided; at the same time, when the rotating sleeve 322 rotates along its axial direction, the first reciprocating sleeve 422 is avoided to be driven to rotate along its axial direction through the limiting flange. Similarly, when the first reciprocating sleeve 422 rotates along its axial direction, the rotating sleeve 322 is avoided to be driven to rotate along its axial direction through the limiting flange, so as to ensure the relative independence of the two during rotation. The inner wall of the second end of the first reciprocating sleeve 422 is provided with an internal thread, the first end of the second reciprocating sleeve 423 is provided with an external thread, the first end of the second reciprocating sleeve 423 is threadedly connected to the second end of the first reciprocating sleeve 422, and the second end of the second reciprocating sleeve 423 is transmission-connected to the fixed sleeve 323; and Fig.12 As shown, the cross-sectional shape of the first end of the second reciprocating sleeve 423 along the axis of the rotary cutting needle 220 is set to be waist-shaped or semicircular, so that the outer wall of the first end of the second reciprocating sleeve 423 has a curved surface and a flat surface, the external thread is set on the curved surface, and the reciprocating limit member 424 arranged in the sleeve is arranged opposite to the plane, and the reciprocating limit member 424 cooperates with the plane to limit the second reciprocating sleeve 423 from rotating around the axis of the rotary cutting needle 220. In this way, after the reciprocating drive member 410 is started, the output shaft of the reciprocating drive member 410 drives the first reciprocating sleeve 422 to rotate around the axis of the rotary cutting needle 220 through the reciprocating transmission wheel group 421. During the rotation of the first reciprocating sleeve 422, the internal thread cooperates with the external thread, and the plane on the first end of the second reciprocating sleeve 423 cooperates with the reciprocating limit member 424 to change the relative position of the first reciprocating sleeve 422 and the second reciprocating sleeve 423 in the H direction; in this process, the second reciprocating sleeve 423 drives the fixed sleeve 323 to reciprocate along the H direction through the sliding cooperation between the limiting protrusion and the corresponding first limiting groove, thereby driving the rotary cutting needle 220 to reciprocate along the H direction, so as to complete the adjustment of the size of the resection port and the resection process of smaller lesions.

[0070] When the first reciprocating sleeve 422 is disposed on the rotating sleeve 322 , the first end of the rotating sleeve 322 is exposed from the first end of the first reciprocating sleeve 422 , so that the first rotating gear 3211 is fixedly sleeved on the first end of the rotating sleeve 322 . The reciprocating transmission wheel group 421 includes a first reciprocating gear 4211, a second reciprocating gear 4212 and a third reciprocating gear 4213. The first reciprocating gear 4211 is fixedly sleeved on the output shaft of the reciprocating driving member 410, and the second reciprocating gear 4212 is fixedly sleeved on the middle part of the mounting shaft 3214 to avoid interference with the second rotating gear 3212. The third reciprocating gear 4213 is fixedly sleeved on the first end of the first reciprocating sleeve 422. The second reciprocating gear 4212 is meshed with the first reciprocating gear 4211 and the second reciprocating gear 4212. In this way, when the reciprocating driving member 410 is running, the three gears can be used to drive the first reciprocating sleeve 422 to rotate around the axis of the rotary cutting needle 220, so as to change the relative position of the first reciprocating sleeve 422 and the second reciprocating sleeve 423 in the H direction through the cooperation of the internal thread and the external thread, and ensure the transmission accuracy. In this embodiment, the reciprocating drive member 410 is configured as a forward and reverse motor, so as to ensure that the rotary cutting needle 220 can be driven to reciprocate along the H direction to ensure the puncture effect and the removal effect of smaller lesions. In addition to gear transmission, in other embodiments, the reciprocating transmission wheel set 421 can also be configured as a sprocket drive or a belt drive according to actual needs, which will not be repeated here.

[0071] Furthermore, a transmission groove 3231 extending along its circumference is provided at the second end of the fixed sleeve 323 , and a transmission flange 4231 is provided at the second end of the second reciprocating sleeve 423 . When the second reciprocating sleeve 423 is arranged on the fixed sleeve 323 , the transmission flange 4231 is located in the transmission groove 3231 .

[0072] Combination Figure 7As shown, the transmission flange 4231 is set to be annular and is arranged on the inner wall of the second end of the second reciprocating sleeve 423. The width of the transmission groove 3231 is greater than the thickness of the transmission flange 4231. When the second reciprocating sleeve 423 is arranged behind the fixed sleeve 323, the transmission flange 4231 is located in the transmission groove 3231. When the reciprocating transmission wheel group 421 drives the second reciprocating sleeve 423 to reciprocate along the H direction, the transmission flange 4231 cooperates with the transmission groove 3231 to drive the fixed sleeve 323 to reciprocate along the H direction, thereby realizing the reciprocating motion of the rotary cutting needle 220 along the H direction. Since the transmission groove 3231 extends in a ring shape along the circumference of the fixed sleeve 323, and the transmission flange 4231 is set in a ring shape, the second reciprocating sleeve 423 can drive the fixed sleeve 323 to reciprocate along the H direction. When the rotating sleeve 322 drives the fixed sleeve 323 to rotate around the axis of the rotary cutting needle 220, it is avoided that the fixed sleeve 323 drives the second reciprocating sleeve 423 to rotate due to the jamming of the transmission flange 4231 and the transmission groove 3231, resulting in damage to the first reciprocating sleeve 422 or the second reciprocating sleeve 423, thereby ensuring the use effect of the biopsy device.

[0073] Preferably, the thyroid biopsy puncture and excision device also includes a puncture rotation mechanism, which includes a puncture drive 710 and a puncture transmission assembly 720; the puncture transmission assembly 720 is arranged between the sleeve 100 and the reciprocating transmission assembly 420, and is transmission-connected to the first end of the puncture needle 210, and the output shaft of the puncture drive 710 can drive the puncture needle 210 to rotate around the axis of the puncture needle 210 through the puncture transmission assembly 720.

[0074] Since the puncture transmission assembly 720 is connected to the puncture needle 210 by transmission, and the puncture drive 710 is started, the puncture transmission assembly 720 can drive the puncture needle 210 to rotate around the axis of the puncture needle 210. Therefore, during the puncture process, if a smaller lesion is encountered and it needs to be removed as much as possible, the puncture drive 710 can be directly started to drive the puncture needle 210 to rotate, thereby changing the direction of the puncture window 211 in the thyroid gland, so that the puncture window 211 is opposite to the lesion, so as to facilitate the removal of the lesion. During the whole process, it is only necessary to start the puncture drive 710 to adjust the direction of the puncture window 211 without directly rotating the entire biopsy device, thereby reducing the involvement of the puncture wound, ensuring the puncture and the removal of smaller lesions, while reducing the wound as much as possible to shorten the healing time. At the same time, the puncture needle 210 can also be driven to rotate, and the size of the removal port can be changed according to the size of the removed lesion in cooperation with the puncture needle 210, thereby improving the convenience of operation.

[0075] Preferably, the puncture transmission assembly 720 includes a puncture transmission wheel group 721, a first puncture sleeve 722, a second puncture sleeve 723 and a third puncture sleeve 724; the first puncture sleeve 722 is arranged on the first reciprocating sleeve 422, and the middle limit of the first reciprocating sleeve 422 is connected to the first puncture sleeve 722, the middle limit of the first puncture sleeve 722 is connected to the first end of the sleeve 100, and the first end of the first puncture sleeve 722 is connected to the puncture drive member 710 through the puncture transmission wheel group 721; the second The puncture sleeve 723 is arranged on the second reciprocating sleeve 423, and the first end of the second puncture sleeve 723 is transmission-connected to the second end of the first puncture sleeve 722, the second end of the first reciprocating sleeve 422 abuts against the first end of the second puncture sleeve 723, and the reciprocating limiter 424 is arranged on the inner wall of the second puncture sleeve 723; the third puncture sleeve 724 is transmission-connected to the second end of the second puncture sleeve 723, and is limited at the second end of the sleeve 100, and the first end of the puncture needle 210 is connected to the third puncture sleeve 724.

[0076] Specifically, a first limiting boss extending away from the axial direction of the puncture needle 210 is provided in the middle of the first reciprocating sleeve 422, and a second limiting boss is provided in the middle of the first puncture sleeve 722. The second limiting boss is located on the inner wall of the first puncture sleeve 722. When the first puncture sleeve 722 is arranged on the second reciprocating sleeve 423, and the second puncture sleeve 723 is arranged on the second reciprocating sleeve 423, the first limiting boss and the second limiting boss are limited and matched; in this way, the first reciprocating sleeve 4 The second end of 22 is limitedly matched with the first end of the second puncture sleeve 723 to limit the relative position of the first puncture sleeve 722 in the H direction to avoid relative displacement between the first reciprocating sleeve 422 and the first puncture sleeve 722 in the H direction; at the same time, during the excitation of the reciprocating drive 410 or the puncture drive 710, it is avoided that the first reciprocating sleeve 422 follows the rotation of the first puncture sleeve 722, or the first puncture sleeve 722 follows the rotation of the first reciprocating sleeve 422.

[0077] The outer wall of the first puncture sleeve 722 is provided with a third limiting boss, and is limitedly connected to the first end of the sleeve shell through the limiting boss. The first end of the second puncture sleeve 723 is transmission-connected to the second end of the first puncture sleeve 722, and the third puncture sleeve 724 is transmission-connected to the second end of the second puncture sleeve 723 and limited at the second end of the sleeve 100. In this way, the relative position of the puncture transmission assembly 720 and the sleeve 100 in the H direction is limited, and during the use of the biopsy device, the rotating transmission assembly 320 and the reciprocating transmission assembly 320 are prevented from rotating. At the same time, when the puncture drive member 710 is started, the output shaft of the puncture drive member 710 drives the first puncture sleeve 722 to rotate along its axial direction through the puncture transmission wheel group 721, and drives the second puncture sleeve 723 to rotate, so as to drive the third puncture sleeve 724 to rotate along its axial direction, thereby driving the puncture needle 210 to rotate around the axis of the puncture needle 210, so as to complete the adjustment of the size of the resection port and the resection process of smaller lesions. The connection mode of the two ends of the second puncture sleeve 723 to the first puncture sleeve 722 and the second puncture sleeve 723 for transmission connection can be set to interference fit, key connection, clamping, etc. according to actual needs, which is not specifically limited here.

[0078] like Fig.12 As shown, the reciprocating stopper 424 is configured as a stopper block or a stopper bar, and is disposed on the inner wall of the second puncture sleeve 723, and is disposed opposite to the plane of the first end of the second reciprocating sleeve 423, so as to limit the second reciprocating sleeve 423 from rotating around the axis of the rotary cutting needle 220 during the process of the reciprocating driving member 410 driving the first reciprocating sleeve 422 to rotate. Since the reciprocating stopper 424 is located on the inner wall of the second puncture sleeve 723, in this embodiment, when the second puncture sleeve 723 rotates, the reciprocating stopper 424 can drive the second puncture sleeve 723 to rotate, so as to change the relative position of the first puncture sleeve 722 and the second puncture sleeve 723 in the H direction, that is, when the puncture needle 210 is driven to rotate to change the direction of the puncture window 211, the size of the resection opening can be changed in the H direction at the same time.

[0079] The puncture transmission wheel group 721 includes a first puncture gear 7211, a second puncture gear 7212 and a third puncture gear 7213. The first puncture gear 7211 is fixedly sleeved on the output shaft of the puncture driving member 710, the second puncture gear 7212 and the second rotating gear 3212 are fixedly sleeved on the second end of the mounting shaft 3214 to avoid interference with the second reciprocating gear 4212, and the third puncture gear 7213 is fixedly sleeved on the first end of the first puncture sleeve 722. The second puncture gear 7212 is meshed with the first puncture gear 7211 and the second puncture gear 7212. In this way, when the puncture driving member 710 is running, the first puncture sleeve 722 can be driven to rotate around the axis of the puncture needle 210 through the cooperation of the three gears, so as to drive the third puncture sleeve 724 to rotate through the second puncture sleeve 723, thereby driving the puncture needle 210 to rotate around the axis of the puncture needle 210 and ensuring the transmission accuracy. In this embodiment, the puncture drive member 710 is configured as a forward and reverse motor, so as to ensure that the puncture needle 210 can be driven to rotate around the axis of the puncture needle 210 to ensure the puncture effect and the removal effect of smaller lesions. In addition to gear transmission, in other embodiments, the puncture drive wheel group 721 can also be configured as a sprocket drive or a belt drive according to actual needs, which will not be repeated here.

[0080] When the first puncture sleeve 722 is arranged behind the first reciprocating sleeve 422, the first end of the first reciprocating sleeve 422 is exposed at the first end of the first puncture sleeve 722, so that the first reciprocating gear 4211 is fixedly sleeved on the first end of the first reciprocating sleeve 422; at the same time, when the first puncture sleeve 722 is arranged behind the sleeve 100, the first end of the first puncture sleeve 722 is exposed at the first end of the sleeve 100, so that the first puncture gear 7211 is fixedly sleeved on the first end of the first puncture sleeve 722.

[0081] Preferably, a positive pressure cavity connected to the third puncture sleeve 724 is provided between the third puncture sleeve 724 and the inner wall of the sleeve 100, and a connecting port 110 connected to the positive pressure cavity is provided on the sleeve 100, and the air outlet of the positive pressure pump 610 is connected to the connecting port 110. The connecting port 110 cooperates with the positive pressure cavity so that the positive pressure pump 610 is connected to the gap between the puncture needle 210 and the rotary cutting needle 220. During the puncture or excision of a smaller lesion, the operation status of the positive pressure pump 610 can be adjusted according to the actual situation of the lesion, and the positive and negative pressures at the excision port can be adjusted to facilitate the suction of the excised tissue into the storage component 500 and avoid the adhesion of the excised tissue to the wound. At the same time, the operation status of the positive pressure pump 610 and the negative pressure pump 620 can be adaptively adjusted according to the actual size of the excised lesion to adaptively adjust the positive and negative pressures at the excision port to ensure the use effect of the biopsy device.

[0082] Specifically, the puncture transmission assembly 720 also includes a first sealing ring 725 and two second sealing rings 726. In the direction from the third puncture sleeve 724 to the second puncture sleeve 723, the third puncture sleeve 724 is configured as an abutment portion 7241 and a connecting portion 7242 whose diameter is smaller than the abutment portion 7241; the first sealing ring 725 is sealingly arranged between the connecting portion 7242 and the rotary cutting needle 220, and along the H direction, the two second sealing rings 726 are spaced apart between the abutment portion 7241 and the inner wall of the tube sleeve 100 to form a positive pressure chamber between the abutment portion 7241 and the tube sleeve 100.

[0083] The first sealing ring 725 seals the gap between the connecting portion 7242 and the rotary cutting needle 220 to prevent the positive pressure chamber from communicating with the gap between the second puncture sleeve 723 and the rotary cutting needle 220. The second sealing ring 726 disposed away from the second end of the sleeve 100 abuts against the inner wall of the sleeve 100 to seal the gap between the abutment portion 7241 and the sleeve 100 to prevent the positive pressure chamber from communicating with the gap between the second puncture sleeve 723 and the sleeve 100. The second end of the sleeve 100 is provided with a connecting channel, and another second sealing ring 726 abuts against the inner wall of the connecting channel to seal the gap between the abutment portion 7241 and the connecting channel to prevent the positive pressure chamber from communicating with the external space. The third puncture sleeve 724, the sleeve 100, and the first sealing ring 725 and the two second sealing rings 726 cooperate with each other to ensure the sealing of the positive pressure chamber, thereby ensuring the regulating effect of the positive and negative pressures at the resection port.

[0084] Since the diameter of the connecting portion 7242 is smaller than that of the abutting portion 7241 , a fourth limiting boss is formed between the connecting portion 7242 and the abutting portion 7241 , and the third puncture sleeve 724 is limitedly connected to the second end of the sleeve 100 via the fourth limiting boss.

[0085] Preferably, the storage component 500 includes a storage element 510, a storage connector 520 and a storage seal 530. A storage cavity is provided inside the storage element 510. The storage element 510 is detachably connected to the second end of the rotary cutting needle 220 through the storage connector 520. The storage seal 530 is sealed between the storage connector 520 and the rotary cutting needle 220. The air outlet of the negative pressure pump 620 is connected to the storage cavity.

[0086] Combination Figure 8The storage element 510 includes a storage body 511 and a storage cover 512. The storage body 511 is configured to be cylindrical, and the storage cover 512 is provided with a connection protrusion. A connection groove is provided on the outer wall of the first end of the storage body 511. By snapping the connection protrusion into the connection groove, the storage cover 512 can be detachably connected to the first end of the storage body 511 and cooperates with the storage body 511 to form a storage cavity. When the storage cover 512 needs to be removed, the first end of the storage body 511 is pressed toward the direction close to the axis of the storage body 511 to disengage the connection protrusion from the connection groove, and the storage cover 512 can be removed. In this embodiment, the connection groove extends in a ring shape along the circumference of the storage body 511, and the connection protrusion is correspondingly provided to the connection groove.

[0087] A negative pressure channel is provided on the storage cover 512, and the air outlet of the negative pressure pump 620 is connected to the negative pressure channel. The storage connector 520 is provided at the second end of the storage body 511, and the storage component 510 is detachably connected to the second end of the rotary cutting needle 220 through the storage connector 520; in this way, when it is necessary to collect puncture samples or excised tissues, the puncture samples or excised tissues can be directly sucked into the storage cavity by adjusting the negative pressure pump 620; after the puncture samples or excised tissues are sucked into the storage cavity, a new storage component 500 can be directly replaced, or the storage cover 512 can be directly opened for collection, thereby completing the collection of multiple puncture samples or excised tissues without replacing the entire biopsy device. In order to ensure the use effect of the negative pressure pump 620, an auxiliary seal 513 is provided between the storage cover 512 and the first end of the storage body 511, and an auxiliary seal 513 is provided between the storage connector 520 and the rotary cutting needle 220. In addition, in order to prevent the punctured sample or the excised tissue from being sucked into the negative pressure pump 620 and affecting the use effect of the negative pressure pump 620, in this embodiment, an isolation net (not shown in the figure) is set between the negative pressure channel or the negative pressure channel and the air outlet of the negative pressure pump 620.

[0088] Furthermore, the storage component 500 also includes a filter element 540 and an auxiliary connecting element 550. A connecting port is provided on the side wall of the storage element 510 facing away from the rotary cutting needle 220. The filter element 540 is detachably connected to the connecting port through the auxiliary connecting element 550. When the auxiliary connecting element 550 is connected to the connecting port, the side of the filter element 540 facing away from the auxiliary connecting element 550 is sleeved on the second end of the rotary cutting needle 220, and the storage cavity is divided into an upper collection area and a lower liquid area.

[0089] The connection port is arranged in the middle of the storage cover body 512, and the filter 540 is fixedly arranged on the auxiliary connection member 550. The auxiliary connection member 550 is detachably connected to the storage cover body 512 through the connection port. When collecting multiple puncture samples or excised tissues, the auxiliary connection member 550 can be removed from the connection port to complete one collection, so as to further improve the operational convenience. Along the axial direction of the storage body 511, the cross-sectional shape of the filter 540 is set to be semicircular. When the auxiliary connector 550 is connected to the connection port, the side of the filter 540 away from the auxiliary connector 550 is sleeved on the second end of the rotary cutting needle 220, and the two side walls of the filter 540 in the width direction are respectively abutted against the inner wall of the storage body 511 to separate the storage cavity into an upper collection area and a lower liquid area. The collection area and the liquid area are relatively independent, and the negative pressure channel and the liquid area are correspondingly arranged; in this way, the puncture sample or the resected tissue is filtered. On the one hand, it is prevented that the non-liquid tissue in the puncture sample or the resected tissue enters the liquid area, thereby reducing the blockage of the negative pressure channel and the negative pressure pump 620; on the other hand, the liquid is separated from the non-liquid tissue, which is convenient for the operator to collect according to actual needs. The size of the filter mesh on the filter 540 is set according to actual needs and is not specifically limited here. In addition, in order to further ensure the sealing of the storage cavity, a sealing ring is arranged between the auxiliary connector 550 and the connection port.

[0090] The biopsy device provided in this embodiment can be used for puncture and resection with a relatively small incision, including but not limited to the thyroid gland, and can also be applied to the breast, pericardium, etc. according to actual needs, and is not specifically limited here.

[0091] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A thyroid biopsy puncture and excision device, characterized in that: include; A pipe sleeve (100); The puncture assembly (200) comprises a puncture needle (210) and a rotary cutting needle (220), wherein the first end of the puncture needle (210) is arranged at the second end of the tube sleeve (100), the second end of the puncture needle (210) is provided with a puncture window (211), and the first end of the rotary cutting needle (220) passes through the tube sleeve (100) and is inserted into the puncture needle (210); The rotary cutting rotation mechanism comprises a rotary cutting driving member (310) and a rotary transmission assembly (320), wherein the rotary transmission assembly (320) is arranged in the sleeve (100) and is transmission-connected to the middle part of the rotary cutting needle (220), and the output shaft of the rotary cutting driving member (310) can drive the rotary cutting needle (220) to rotate around the axis of the rotary cutting needle (220) through the rotary transmission assembly (320); A reciprocating mechanism, comprising a reciprocating drive member (410) and a reciprocating transmission assembly (420), wherein the reciprocating transmission assembly (420) is disposed between the pipe sleeve (100) and the rotating transmission assembly (320) and is in transmission connection with the rotating transmission assembly (320), and an output shaft of the reciprocating drive member (410) can drive the rotating transmission assembly (320) to reciprocate along a direction H through the reciprocating transmission assembly (420); A storage component (500) is detachably disposed on the second end of the rotary cutting needle (220); The pressure stabilizing component comprises a positive pressure pump (610) and a negative pressure pump (620), wherein the air outlet of the negative pressure pump (620) is connected to the second end of the rotary cutting needle (220) through the storage component (500), and the air outlet of the positive pressure pump (610) is connected to the gap between the puncture needle (210) and the rotary cutting needle (220).

2. The thyroid biopsy puncture and excision device according to claim 1, characterized in that: The rotary transmission assembly (320) comprises a rotary transmission wheel assembly (321), a rotary sleeve (322), a fixed sleeve (323) and a rotary stopper (324); The rotating sleeve (322) is movably sleeved on the middle part of the rotary cutting needle (220), and the first end of the rotating sleeve (322) is transmission-connected to the output shaft of the rotary cutting driving member (310) through the rotating transmission wheel group (321); the fixed sleeve (323) is fixedly sleeved on the middle part of the rotary cutting needle (220), and the first end of the fixed sleeve (323) is inserted into the second end of the rotating sleeve (322); the rotation limiting member (324) is arranged between the second end of the rotating sleeve (322) and the first end of the fixed sleeve (323) to limit the relative rotation of the two.

3. The thyroid biopsy puncture and excision device according to claim 2, characterized in that: The reciprocating transmission assembly (420) comprises a reciprocating transmission wheel set (421), a first reciprocating sleeve (422), a second reciprocating sleeve (423), and a reciprocating stopper (424); The first reciprocating sleeve (422) is sleeved on the rotating sleeve (322), and the middle part of the rotating sleeve (322) is limitedly connected to the first reciprocating sleeve (422), the first end of the first reciprocating sleeve (422) is transmission-connected to the reciprocating driving member (410) through the reciprocating transmission wheel group (421), the second reciprocating sleeve (423) is sleeved on the fixed sleeve (323), and the first end of the second reciprocating sleeve (423) is threadedly connected to the second end of the first reciprocating sleeve (422), the second end of the second reciprocating sleeve (423) is transmission-connected to the fixed sleeve (323), and the reciprocating limiter (424) is arranged in the sleeve (100) and can limit the second reciprocating sleeve (423) from rotating around the axis of the rotary cutting needle (220).

4. The thyroid biopsy puncture and excision device according to claim 3, characterized in that: The second end of the fixed sleeve (323) is provided with a transmission groove (3231) extending along its circumference, and the second end of the second reciprocating sleeve (423) is provided with a transmission flange (4231). When the second reciprocating sleeve (423) is sleeved on the fixed sleeve (323), the transmission flange (4231) is located in the transmission groove (3231).

5. The thyroid biopsy puncture and excision device according to claim 3, characterized in that: The thyroid biopsy puncture and rotary cutting device also includes a puncture rotation mechanism, and the puncture rotation mechanism includes a puncture drive member (710) and a puncture transmission assembly (720); The puncture transmission assembly (720) is arranged between the tube sleeve (100) and the reciprocating transmission assembly (420), and is transmission-connected to the first end of the puncture needle (210). The output shaft of the puncture drive member (710) can drive the puncture needle (210) to rotate around the axis of the puncture needle (210) through the puncture transmission assembly (720).

6. The thyroid biopsy puncture and excision device according to claim 5, characterized in that: The puncture transmission assembly (720) comprises a puncture transmission wheel assembly (721), a first puncture sleeve (722), a second puncture sleeve (723) and a third puncture sleeve (724); The first puncture sleeve (722) is sleeved on the first reciprocating sleeve (422), and the middle portion of the first reciprocating sleeve (422) is limitedly connected to the first puncture sleeve (722), the middle portion of the first puncture sleeve (722) is limitedly connected to the first end of the sleeve (100), and the first end of the first puncture sleeve (722) is transmission-connected to the puncture drive member (710) via the puncture transmission wheel group (721); The second puncture sleeve (723) is sleeved on the second reciprocating sleeve (423), and the first end of the second puncture sleeve (723) is transmission-connected to the second end of the first puncture sleeve (722), the second end of the first reciprocating sleeve (422) abuts against the first end of the second puncture sleeve (723), and the reciprocating limiter (424) is arranged on the inner wall of the second puncture sleeve (723); The third puncture sleeve (724) is transmission-connected to the second end of the second puncture sleeve (723) and is limited to the second end of the sleeve (100). The first end of the puncture needle (210) is connected to the third puncture sleeve (724).

7. The thyroid biopsy puncture and excision device according to claim 6, characterized in that: A positive pressure chamber connected to the third puncture sleeve (724) is provided between the third puncture sleeve (724) and the inner wall of the sleeve (100), a connecting port (110) connected to the positive pressure chamber is provided on the sleeve (100), and an air outlet of the positive pressure pump (610) is connected to the connecting port (110).

8. The thyroid biopsy puncture and excision device according to claim 7, characterized in that: The puncture transmission assembly (720) further includes a first sealing ring (725) and two second sealing rings (726); in the direction from the third puncture sleeve (724) to the second puncture sleeve (723), the third puncture sleeve (724) is configured as an abutment portion (7241) and a connection portion (7242) having a diameter smaller than that of the abutment portion (7241); The first sealing ring (725) is sealingly arranged between the connecting portion (7242) and the rotary cutting needle (220), and along the H direction, two second sealing rings (726) are spaced apart between the abutting portion (7241) and the inner wall of the sleeve (100) so as to form the positive pressure chamber between the abutting portion (7241) and the sleeve (100).

9. The thyroid biopsy puncture and excision device according to claim 1, characterized in that: The storage assembly (500) includes a storage element (510), a storage connector (520) and a storage seal (530); a storage cavity is provided inside the storage element (510); the storage element (510) is detachably connected to the second end of the rotary cutting needle (220) via the storage connector (520); the storage seal (530) is sealed between the storage connector (520) and the rotary cutting needle (220); and an air outlet of the negative pressure pump (620) is connected to the storage cavity.

10. The thyroid biopsy puncture and excision device according to claim 9, characterized in that: The storage component (500) further comprises a filter element (540) and an auxiliary connecting element (550); a connecting port is provided on the side wall of the storage element (510) facing away from the rotary cutting needle (220); the filter element (540) is detachably connected to the connecting port via the auxiliary connecting element (550); and when the auxiliary connecting element (550) is connected to the connecting port, a side of the filter element (540) facing away from the auxiliary connecting element (550) is sleeved on the second end of the rotary cutting needle (220), and the storage cavity is divided into an upper collection area and a lower liquid area.

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