Biopsy sampling positioning system

Abstract

The utility model relates to a biopsy sampling and positioning system. The biopsy sampling and positioning system comprises a sampling assembly and an auxiliary positioning assembly, wherein the sampling assembly comprises a sheath tube and an inner core, and a sampling structure is arranged at the front ends of the inner core and the sheath tube; the auxiliary positioning assembly comprises a positioning locking piece which is adjustably arranged on the sheathing canal in the length direction of the sheathing canal; the scale plate is provided with a first containing groove used for containing the sheathing canal and a second containing groove used for containing the positioning locking piece, the scale plate is further provided with scale marks arranged in the length direction of the first containing groove, and the second containing groove is communicated with the first containing groove and located at the starting end of the scale marks; and the optical navigation component comprises a reference frame arranged on the sheathing canal and an optical ball fixed on the reference frame. According to the scheme, the sampling length can be calibrated in advance, so that a sampling structure can quickly and accurately reach a focus part, the quick positioning of a sampling assembly is completed, accurate navigation can be performed, the visual operation of sampling is realized, and the sampling operation is more refined.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a biopsy sampling positioning system. Background Technology

[0002] Biopsy samplers are commonly used surgical medical instruments, generally used to extract diagnostic specimens such as cells, tissues, and body fluids from lesions in the human body for pathological testing. Traditional biopsy samplers mainly consist of an inner core and an outer tube. The inner core is inserted into the human tissue to reach the lesion, and then the tissue inside the lesion is drawn into the biopsy sampler through rotation or negative pressure aspiration, thus completing the extraction of the diseased tissue.

[0003] However, because existing biopsy sampling devices lack auxiliary positioning components, they cannot quickly locate the lesion site within the tissue, nor can they observe the relative position of the biopsy sampling device and the lesion site in real time. This results in the need for repeated punctures, which is cumbersome and can easily cause damage to surrounding tissues, causing unnecessary pain to the patient. Utility Model Content

[0004] Based on this, the present invention provides a biopsy sampling positioning system that can achieve rapid positioning and precise navigation of the sampling components, solving the problem of cumbersome operation of existing biopsy sampling systems.

[0005] This utility model provides a biopsy sampling and positioning system, which includes a sampling component and an auxiliary positioning component; wherein...

[0006] The sampling assembly includes a sheath and an inner core movable along the interior of the sheath, wherein the inner core and the front end of the sheath are provided with a sampling structure for sampling.

[0007] The auxiliary positioning component includes:

[0008] A positioning locking element is adjustablely disposed on the sheath along the length direction of the sheath;

[0009] A scale plate is provided with a first placement groove for accommodating the sheath tube and a second placement groove for accommodating the positioning locking member. The scale plate is also provided with scale lines arranged along the length direction of the first placement groove. The second placement groove communicates with the first placement groove and is located at the starting end of the scale lines.

[0010] An optical navigation component includes a reference frame disposed on the sheath and an optical ball fixed on the reference frame, the optical navigation component positioning the sheath via the optical ball.

[0011] In one of the embodiments, the sampling structure comprises a first sampling notch arranged at the front end of the inner core and a second sampling notch arranged at the front end of the sheath tube.

[0012] When the inner core moves to the first position along the sheath tube, the first sampling notch and the second sampling notch are located at the same length position of the sheath tube, and rotating the inner core can make the first sampling notch opposite or staggered with the second sampling notch.

[0013] In one of the embodiments, the tail of the inner core is provided with a first mark, which is used for marking the direction of the first sampling notch.

[0014] The tail of the sheath tube is provided with a second mark, which is used for marking the direction of the second sampling notch.

[0015] In one of the embodiments, the first mark is a first mark notch arranged at the tail of the inner core, and the direction of the first mark notch is the same as that of the first sampling notch.

[0016] In one of the embodiments, the second mark is a second mark notch arranged at the tail of the sheath tube, and the direction of the second mark notch is the same as that of the second sampling notch.

[0017] In one of the embodiments, the tail end of the inner core is fixedly connected with a first tail handle, and the first mark notch is arranged on the first tail handle.

[0018] In one of the embodiments, the tail end of the sheath tube is provided with a second tail handle, and the second mark notch is arranged on the second tail handle.

[0019] When the first tail handle and the second tail handle abut, the inner core is located at the first position in the sheath tube.

[0020] In one of the embodiments, the tail end of the second tail handle is provided with a slot, the front end of the first tail handle is provided with a plug column capable of being plugged with the slot, and the plug column is provided with a sealing ring.

[0021] In one of the embodiments, the positioning locking member comprises a locking ring and a locking bolt arranged on the locking ring, the locking ring is sleeved on the sheath tube, and the locking bolt is used for locking the locking ring on the sheath tube or unlocking the locking ring from the sheath tube.

[0022] In one of the embodiments, the front end of the inner core is further embedded with an electromagnetic sensor near the position of the first sampling notch.

[0023] Compared with the prior art, the utility model has at least the following beneficial effects:

[0024] The biopsy sampling positioning system, by setting the first placement groove for placing the sheath and the second placement groove for placing the positioning locking part on the scale plate, makes the sampling assembly realize the pre-calibration of the sampling length on the scale plate, so that the sampling structure can quickly and accurately reach the lesion site, complete the rapid positioning of the sampling assembly, and through the optical navigation component, the position of the sampling assembly can be observed in real time, accurate navigation is realized, the visual operation of sampling is realized, the sampling operation is more refined, and the combination of the two makes the biopsy sampling positioning system realize the rapid positioning of the sampling assembly while improving the positioning accuracy of the sampling assembly and the accuracy of sampling. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the biopsy sampling positioning system in one embodiment.

[0026] Figure 2 It is a structural schematic diagram of the sampling assembly of the biopsy sampling positioning system in one embodiment.

[0027] Figure 3 It is a structural schematic diagram of the inner core of the biopsy sampling positioning system in one embodiment.

[0028] Figure 4 It is a structural schematic diagram of the sheath of the biopsy sampling positioning system in one embodiment.

[0029] Figure 5 It is a structural schematic diagram of the scale plate of the biopsy sampling positioning system in one embodiment.

[0030] Figure 6 It is Figure 3 It is a partial enlarged view of A in FIG.

[0031] The reference signs in the drawings of the specification include: sampling assembly 1, inner core 101, first handle 1011, first identification 1012, plug-in column 1013, sealing ring 1014, pipe joint 1015, sheath 102, second handle 1021, second identification 1022, sampling structure 103, first sampling notch 1031, second sampling notch 1032, auxiliary positioning assembly 2, positioning locking part 201, locking ring 2011, locking bolt 2012, scale plate 202, first placement groove 2021, second placement groove 2022, scale line 2023, optical navigation component 203, reference frame 2031, optical ball 2032, electromagnetic sensor 204. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0033] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application.

[0034] The structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the present specification, so that people skilled in the art can understand and read, and are not used to limit the limiting conditions that can be implemented by the present application. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0035] The orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "intermediate", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc. as used in this specification are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0036] The existing biopsy sampling system cannot quickly complete the positioning of the lesion site in the tissue, and cannot observe the relative position of the biopsy sampler and the lesion site in real time, resulting in the need for repeated puncture, adjustment, and easy damage to the surrounding tissue, causing unnecessary pain to the patient.

[0037] In order to solve the above problems, the biopsy sampling positioning system provided by the embodiments of the present application comprises a sampling assembly 1 and an auxiliary positioning assembly 2; wherein,

[0038] The sampling assembly 1 comprises a sheath tube 102 and an inner core 101 movable along the inside of the sheath tube 102, and the inner core 101 and the front end of the sheath tube 102 are provided with a sampling structure 103 for sampling;

[0039] The auxiliary positioning assembly 2 comprises:

[0040] The positioning locking member 201 is adjustably arranged on the sheath tube 102 along the length direction of the sheath tube 102;

[0041] The scale plate 202 is provided with a first placing groove 2021 for accommodating the sheath tube 102 and a second placing groove 2022 for accommodating the position locking piece 201, and is further provided with a scale line 2023 arranged along the length direction of the first placing groove 2021, and the second placing groove 2022 is communicated with the first placing groove 2021 and is located at the starting end of the scale line 2023;

[0042] The optical navigation component 203 includes a reference frame 2031 arranged on the sheath tube 102 and an optical ball 2032 fixed on the reference frame 2031, and the optical navigation component 203 positions the sheath tube 102 through the optical ball 2032.

[0043] When the biopsy sampling positioning system is used for sampling, the sampling route is planned by using the navigation system, and the sampling depth is obtained.

[0044] Then, the auxiliary positioning assembly 2 is used to plan a sampling length matching the sampling depth on the sheath tube 102, and specifically, the sheath tube 102 is placed in the first placing groove 2021 of the scale plate 202, the position locking piece 201 on the sheath tube 102 is placed in the second placing groove 2022, the relative position of the sheath tube 102 and the position locking piece 201 is adjusted, the length of the sheath tube 102 in the first placing groove 2021 (i.e. the distance between the sampling structure 103 at the front end of the sheath tube 102 and the position locking piece 201) is equal to the sampling depth planned in advance, and then the position locking piece 201 is locked on the sheath tube 102.

[0045] Then, the sampling assembly 1 is inserted into the tissue along the planned sampling route until the position locking piece 201 abuts against the tissue surface, at this time, the length of the sampling assembly 1 inserted into the tissue is just equal to the pre-planned sampling depth, so that the sampling structure 103 just reaches the lesion site, and then sampling can be performed by using the sampling structure 103.

[0046] Moreover, in the process of the sampling assembly 1 being inserted into the tissue, the optical navigation system can be combined, the optical navigation component 203 is used to position the sheath tube 102 through the optical ball 2032, the position and posture of the sampling structure 103 at the front end of the sheath tube 102 are observed in real time, and visualized operation of sampling is realized.

[0047] According to the biopsy sampling positioning system, the sampling length of the sampling assembly 1 can be calibrated in advance through the scale plate 202 and the positioning locking part 201, the sampling structure 103 can quickly and accurately reach the lesion part, the quick positioning of the sampling assembly 1 is completed, the position of the sampling assembly 1 can be observed in real time through the optical navigation part 203, the visual operation of sampling is realized, and the sampling operation is more refined. Therefore, the biopsy sampling positioning system can realize the quick positioning of the sampling assembly 1 through the auxiliary positioning assembly 2, and the positioning accuracy of the sampling assembly 1 is improved.

[0048] The biopsy sampling positioning system provided by the embodiment of the utility model will be described in detail below with reference to the drawings.

[0049] According to Figure 1 The biopsy sampling positioning system provided by the embodiment of the utility model will be described in detail below with reference to the drawings.

[0050] As Figures 2 to 4 shown, the sampling assembly 1 comprises a sheath tube 102 and an inner core 101. The inside of the sheath tube 102 is hollow, and the inside is defined as a sampling channel for the inner core 101 to pass through, and the two ends of the sheath tube 102 are front end and rear end respectively; the inner core 101 is a core pipe which can move along the sampling channel in the inside of the sheath tube 102, and the inside of the core pipe is also defined as a sampling channel, and the two ends of the inner core 101 are front end and rear end respectively. It can be understood that, in the embodiment, the front end of the sheath tube 102 and the inner core 101 is one end of the sheath tube 102 and the inner core 101 which is inserted into the human tissue, that is, the left end of the sheath tube 102 and the inner core 101 as shown in Figure 2 , and the rear end is the other end of the sheath tube 102 and the inner core 101, that is, the right end of the sheath tube 102 and the inner core 101 as shown in Figure 2 .

[0051] Referring to Figure 2 , the front end of the sheath tube 102 and the inner core 101 is provided with a sampling structure 103 for sampling. Specifically, referring to Figure 3 and Figure 4The sampling structure 103 includes a first sampling notch 1031 and a second sampling notch 1032. The first sampling notch 1031 is arranged on the sidewall of the front end of the inner core 101 and communicates with the sampling channel inside the inner core 101. The second sampling notch 1032 is arranged on the sidewall of the front end of the sheath tube 102 and communicates with the sampling channel inside the sheath tube 102. The length relationship between the inner core 101 and the sheath tube 102 satisfies that when the inner core 101 is inserted into the sheath tube 102 and moves along the sheath tube 102 to a first position, the first sampling notch 1031 and the second sampling notch 1032 are located at the same length position of the sheath tube 102. In this way, after the inner core 101 is inserted into the sheath tube 102 and moves along the sheath tube 102 to the first position, the first sampling notch 1031 and the second sampling notch 1032 combine to form the sampling structure 103, and rotating the inner core 101 can make the first sampling notch 1031 and the second sampling notch 1032 relative or staggered. It should be noted that the first position can be understood as the position where the first tail handle 1011 of the inner core 101 and the second tail handle 1021 of the sheath tube 102 abut.

[0052] Based on the above structure design of the sampling structure 103, when the sampling assembly 1 needs to be inserted into the human tissue, the inner core 101 is first inserted into the sheath tube 102 to the first position, and then the inner core 101 is rotated to make the first sampling notch 1031 of the inner core 101 and the second sampling notch 1032 of the sheath tube 102 staggered with each other, so that the non-lesion tissue can be avoided to be sucked into the first sampling notch 1031 during the process of inserting the sampling assembly 1 into the tissue. When sampling is needed, the inner core 101 is first rotated to make the first sampling notch 1031 on the inner core 101 opposite to the second sampling notch 1032 of the sheath tube 102, at this time, the tissue of the lesion can pass through the second sampling notch 1032 and the first sampling notch 1031 and be sucked into the inside of the inner core 101, and then the inner core 101 is rotated to make the first sampling notch 1031 and the second sampling notch 1032 staggered. During this process, the tissue can be cut off by the cutting action of the inner core 101 and the sheath tube 102 at the first sampling notch 1031 and the second sampling notch 1032, and the cut tissue is located in the inside of the inner core 101, and the tissue in the inner core 101 is the required diagnostic specimen. Then the inner core 101 is pulled out to realize the sampling of the tissue.

[0053] It should be noted that in the embodiment, the inner core 101 can be a core tube without puncture function, and the front end thereof is not provided with a puncture tip. For example, the inner core 101 shown in FIG. 1 is suitable for some scenes where a sampling hole is opened in advance. In other embodiments, the inner core 101 can also be a puncture tube with puncture function, for example, a puncture needle, and the front end thereof has a puncture tip, which is suitable for some scenes where no sampling hole is opened. Figure 3

[0054] ​Further, referring to Figure 3 In the embodiment, the tail end of the inner core 101 is fixedly connected with a first tail handle 1011, and the first tail handle 1011 can be used for medical staff to rotate or pull out the inner core 101, so that the operation is more convenient. Correspondingly, referring to Figure 4 The tail end of the sheath tube 102 is fixedly connected with a second tail handle 1021, and the second tail handle 1021 can be used for medical staff to pull out the sheath tube 102, so that the operation is more convenient. In addition, the inside of the second tail handle 1021 is provided with a through hole in communication with the inside of the sheath tube 102, and the inner core 101 can pass into the sheath tube 102 from the tail of the sheath tube 102 through the through hole.

[0055] In use, the first tail handle 1011 and the second tail handle 1021 also serve as the positioning structure in the axial direction between the sheath tube 102 and the inner core 101, for example, referring to Figure 2 When the inner core 101 passes into the sheath tube 102, the first tail handle 1011 and the second tail handle 1021 abut, which is the positioning of the inner core 101 in the sheath tube 102. At this time, the inner core 101 is located at the first position in the sheath tube 102, that is, the first sampling notch 1031 and the second sampling notch 1032 are located at the same length position of the sheath tube 102.

[0056] Further, referring to Figure 3 The front end of the first tail handle 1011 is provided with a plug-in column 1013, and the tail end of the second tail handle 1021 is provided with a plug-in groove (not shown) matched with the plug-in column 1013. Through the cooperation of the plug-in column 1013 and the plug-in groove, the positioning of the sheath tube 102 and the inner core 101 can be more accurate. In addition, the plug-in column 1013 is also provided with a sealing ring 1014, which can make the connection between the first tail handle 1011 and the second tail handle 1021 more stable, and facilitate the overall transfer, pull-out and other operations of the sampling assembly 1.

[0057] Referring to Figure 3 In some embodiments, the tail end of the inner core 101 is also provided with a pipe joint 1015, which is in communication with the internal passage of the inner core 101. The pipe joint 1015 is mainly used for connecting with an external negative pressure suction device, so that in some scenes, the tissue can be sucked into the inner core 101 through the suction action of the negative pressure suction device, so that the sampling operation is more stable. The pipe joint 1015 can be a luer joint.

[0058] Further, referring to Figure 3 In the embodiment, the tail end of the inner core 101 is provided with a first identifier 1012, for example, the first identifier 1012 is arranged on the first tail handle 1011, and the first identifier 1012 is used for marking the direction of the first sampling notch 1031; referring to Figure 4The tail of the sheath tube 102 is provided with a second mark 1022, for example, the second mark 1022 is provided on the second tail handle 1021, and the second mark 1022 is used to mark the direction of the second sampling notch 1032. In this way, through the first mark 1012 and the second mark 1022 of the tail of the inner core 101 and the sheath tube 102, the direction of the first sampling notch 1031 and the second sampling notch 1032 of the front end of the inner core 101 and the sheath tube 102 inside the tissue can be quickly determined from the outside of the tissue, thereby facilitating the sampling operation and making the sampling more accurate and effective.

[0059] For example, see Figure 3 In this embodiment, the first mark 1012 is a first mark 1012 notch provided on the tail of the inner core 101, and the direction of the first mark 1012 notch is the same as that of the first sampling notch 1031. See Figure 4 The second mark 1022 is a second mark 1022 notch provided on the tail of the sheath tube 102, and the direction of the second mark 1022 notch is the same as that of the second sampling notch 1032. In this way, when the first mark 1012 notch and the second mark 1022 notch are located on the same side, the first sampling notch 1031 and the second sampling notch 1032 are relatively connected; when the directions of the first mark 1012 notch and the second mark 1022 notch are different, the first sampling notch 1031 and the second sampling notch 1032 are staggered with each other. This kind of mark design is simpler and more intuitive, and the operation is more convenient.

[0060] In this embodiment, the auxiliary positioning assembly 2 is used to realize the rapid positioning and accurate operation of the sampling assembly 1. Specifically, see Figure 1 , Figure 2 and Figure 5 The auxiliary positioning assembly 2 comprises a positioning locking member 201, a scale plate 202 and an optical navigation component 203.

[0061] The positioning locking member 201 and the scale plate 202 are used in combination to realize the pre-marking of the sampling length of the sampling assembly 1. Specifically, see Figure 2 The positioning locking member 201 is arranged on the sheath tube 102 and can be adjusted and locked in the length direction of the sheath tube 102. See Figure 5 The scale plate 202 is provided with a first placement groove 2021 for accommodating the sheath tube 102 and a second placement groove 2022 for accommodating the positioning locking member 201, and the scale plate 202 is further provided with a scale line 2023 arranged along the length direction of the first placement groove 2021. The second placement groove 2022 is communicated with the first placement groove 2021 and located at the starting end of the scale line 2023. In this way, see Figure 1In use, after the sampling depth is obtained by pre-computation through optical navigation, the sheath tube 102 is placed in the first placement slot 2021 of the scale plate 202, the positioning locking member 201 on the sheath tube 102 is placed in the second placement slot 2022, the relative position of the sheath tube 102 and the positioning locking member 201 is adjusted, the length of the sheath tube 102 in the first placement slot 2021 (i.e. the distance between the sampling structure 103 at the front end of the sheath tube 102 and the positioning locking member 201) is equal to the pre-planned sampling depth, the positioning locking member 201 is locked on the sheath tube 102, and at this time, the part of the sheath tube 102 before the positioning locking member 201 is the part that needs to be intervened. The positioning locking member 201 can be used as a positioning member to ensure the positioning accuracy during the intervention of the sampling assembly 1 into the tissue, i.e. when the positioning locking member 201 abuts against the surface of the tissue during the puncture, the length of the sampling assembly 1 that is intervened into the tissue is just equal to the pre-planned sampling depth, so that the sampling structure 103 just reaches the lesion site.

[0062] More specifically, referring to Figure 2 In this embodiment, the positioning locking member 201 comprises a locking ring 2011 and a locking bolt 2012. The locking ring 2011 is movably sleeved on the sheath tube 102, so that it can be adjusted in position along the sheath tube 102. The locking bolt 2012 is arranged on the locking ring 2011 and is used to lock the locking ring 2011 on the sheath tube 102 or unlock the locking ring 2011 from the sheath tube 102. For example, the locking ring 2011 is provided with a threaded hole in the radial direction, and the locking bolt 2012 is threadedly connected in the threaded hole. In operation, when the locking bolt 2012 is screwed to abut against the sheath tube 102, the locking of the locking ring 2011 on the sheath tube 102 is achieved, the calibration of the sampling length on the sheath tube 102 is completed, and vice versa, when the locking bolt 2012 is loosened to separate from the sheath tube 102, the unlocking of the locking ring 2011 from the sheath tube 102 is achieved, and the position of the locking ring 2011 on the sheath tube 102 can be adjusted.

[0063] Referring to Figure 1 and Figure 5 The scale plate 202 can be a strip-shaped plate, the first placement slot 2021 is a strip-shaped slot arranged along the length direction of the scale plate 202, the width of the strip-shaped slot is equal to or slightly greater than the diameter of the sheath tube 102, so that the sheath tube 102 can be placed in the first placement slot 2021, and the scale at the front end of the sheath tube 102 is convenient to observe. The scale line 2023 is a length scale line arranged along the length direction of the sheath tube 102 and distributed on both sides of the first placement slot 2021, so that the length of the part of the sheath tube 102 placed in the first placement slot 2021 can be more intuitively observed.

[0064] Referring to Figure 1 and Figure 5The second placement groove 2022 is arranged at the starting end of the first placement groove 2021, i.e., at the zero scale of the scale line 2023, and the width of the second placement groove 2022 is equal to the thickness of the locking ring 2011, so that the locking ring 2011 can be placed in the second placement groove 2022 without gap, avoiding the deviation of the locking ring 2011 in the calibration process of the sampling length of the sheath tube 102, and thus ensuring the accuracy of the calibration of the sampling length on the sheath tube 102.

[0065] Further, referring to Figure 1 and Figure 5 , the scale plate 202 is provided with an avoidance groove (not numbered) on the side of the second placement groove 2022 away from the first placement groove 2021, the avoidance groove is in communication with the second placement groove 2022, and the avoidance groove is located on the extension line of the first placement groove 2021. The avoidance groove is used for placing the part of the sheath tube 102 outside the first placement groove 2021, ensuring that the whole sheath tube 102 remains horizontal, and thus ensuring the accuracy of the obtained sampling length.

[0066] In the embodiment, the optical navigation component 203 is used to realize the optical positioning of the sampling assembly 1 in combination with the optical navigation system, to realize the full-flow visual operation of the biopsy sampling, and to quickly and accurately collect the tissue of the lesion.

[0067] Specifically, referring to Figure 2 , the optical navigation component 203 includes a reference frame 2031 arranged on the sheath tube 102 and an optical ball 2032 fixed to the reference frame 2031, and the optical navigation component 203 positions the sheath tube 102 through the optical ball 2032. In this way, the optical ball 2032 is fixed on the sheath tube 102 through the reference frame 2031, so that the optical ball 2032 can move with the sheath tube 102, ensuring that the position of the optical ball 2032 relative to the sheath tube 102 remains unchanged, and the position and attitude of the sheath tube 102 and the sampling structure 103 at the front end of the sheath tube 102 can be accurately obtained in combination with the optical navigation system, thereby realizing the visual operation of the sampling assembly 1, achieving fast positioning of the sampling assembly 1, and improving the positioning accuracy of the sampling assembly 1.

[0068] It should be noted that the principle of positioning an object by using optical navigation technology is prior art, which is disclosed in the applicant's prior application and prior art, and will not be described herein. In the embodiment, the optical navigation technology is applied to the sampling assembly 1, so that the sampling assembly 1 can be accurately inserted into the target position, and the sampling channel can be accurately established.

[0069] In some embodiments, the auxiliary positioning assembly 2 further includes an electromagnetic navigation component, for example, referring to Figure 3 and Figure 6The electromagnetic navigation component is an electromagnetic sensor 204 embedded in the inner core 101. The electromagnetic sensor 204 can be combined with the electromagnetic navigation system to realize the electromagnetic positioning of the sampling component 1, so as to realize the full-process visualization operation of biopsy sampling, and can quickly and accurately collect tissue from the lesion.

[0070] For details, see Figure 6 The electromagnetic sensor 204 is positioned at the front end of the inner core 101 near the first sampling notch 1031. This ensures that after the sampling assembly 1 penetrates the tissue, the electromagnetic sensor 204 is close to the lesion, further guaranteeing accurate positioning. The inner core 101 also has a wire harness groove (not labeled in the figure) for the wire harness to pass through and electrically connect to the electromagnetic sensor 204 at the front end of the inner core 101, allowing the electromagnetic sensor 204 to transmit position signals via the wire harness. Preferably, a six-degree-of-freedom electromagnetic sensor 204 is used, providing more comprehensive spatial information and more accurate positioning. It should be noted that when the inner core 101 contains the electromagnetic sensor 204, suction is no longer performed using a negative pressure suction device.

[0071] The biopsy sampling and positioning system provided in the above embodiments can be used as follows:

[0072] 1) Calibrate the sampling length of sheath 102

[0073] Place the sheath 102 in the first placement slot 2021 of the scale plate 202, place the positioning locking piece 201 on the sheath 102 in the second placement slot 2022, loosen the locking bolt 2012, and then adjust the length of the sheath 102 in the first placement slot 2021 according to the sampling depth pre-acquired by the navigation system so that the sampling length of the sheath 102 is equal to the sampling depth pre-acquired by the navigation system. Then tighten the locking bolt 2012 to lock the locking ring 2011 on the sheath 102.

[0074] 2) Insert the sampling component 1 into the lesion site.

[0075] First, insert the inner core 101 into the sheath 102 and rotate the first tail shank 1011 to offset the notch of the first mark 1012 and the notch of the second mark 1022, that is, to offset the first sampling notch 1031 and the second sampling notch 1032. Then, insert the sampling component 1 into the tissue along the planned sampling route until the positioning locking member 201 abuts against the tissue surface. At this time, the sampling structure 103 just reaches the lesion site.

[0076] 3) Sampling

[0077] Firstly, the first tail handle 1011 is rotated to make the first mark 1012 notch and the second mark 1022 notch on the same side, that is, to make the first sampling notch 1031 and the second sampling notch 1032 opposite, at this time, the tissue of the lesion part enters the inner core 101 through the second sampling notch 1032 and the first sampling notch 1031. Then, the first tail handle 1011 is rotated again to make the first mark 1012 notch and the second mark 1022 notch staggered, that is, to make the first sampling notch 1031 and the second sampling notch 1032 staggered, in this process, the inner core 101 cuts off the tissue, the tissue in the inner core 101 is the diagnostic specimen required, then the first tail handle 1011 is operated to pull out the inner core 101 or the inner core 101 and the sheath tube 102 are pulled out together, so that the sampling of the tissue can be realized.

[0078] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present disclosure.

[0079] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that, for those skilled in the art, on the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A biopsy sampling and positioning system, characterized in that, It includes a sampling component (1) and an auxiliary positioning component (2); wherein, The sampling assembly (1) includes a sheath (102) and an inner core (101) movable inside the sheath (102), wherein the inner core (101) and the front end of the sheath (102) are provided with a sampling structure (103) for sampling. The auxiliary positioning component (2) includes: A positioning locking element (201) is adjustablely disposed on the sheath tube (102) along the length direction of the sheath tube (102); A scale plate (202) is provided with a first placement groove (2021) for accommodating the sheath tube (102) and a second placement groove (2022) for accommodating the positioning locking member (201). The scale plate (202) is also provided with a scale line (2023) arranged along the length direction of the first placement groove (2021). The second placement groove (2022) communicates with the first placement groove (2021) and is located at the starting end of the scale line (2023). An optical navigation component (203) includes a reference frame (2031) disposed on the sheath (102) and an optical ball (2032) fixed on the reference frame (2031), wherein the optical navigation component (203) positions the sheath (102) via the optical ball (2032).

2. The biopsy sampling and positioning system according to claim 1, characterized in that: The sampling structure (103) includes a first sampling notch (1031) disposed at the front end of the inner core (101) and a second sampling notch (1032) disposed at the front end of the sheath (102). When the inner core (101) moves along the sheath (102) to the first position, the first sampling notch (1031) and the second sampling notch (1032) are located at the same length position of the sheath (102). Rotating the inner core (101) can make the first sampling notch (1031) and the second sampling notch (1032) opposite or offset.

3. The biopsy sampling and positioning system according to claim 2, characterized in that: The inner core (101) is provided with a first mark (1012) at its tail, and the first mark (1012) is used to mark the direction of the first sampling notch (1031); The tail of the sheath (102) is provided with a second mark (1022), which is used to mark the direction of the second sampling notch (1032).

4. The biopsy sampling and positioning system according to claim 3, characterized in that: The first identifier (1012) is a first identifier notch located at the tail of the inner core (101), and the first identifier notch is in the same direction as the first sampling notch (1031).

5. The biopsy sampling and positioning system according to claim 4, characterized in that: The second mark (1022) is a second mark notch provided at the tail of the sheath (102), and the second mark notch is in the same direction as the second sampling notch (1032).

6. The biopsy sampling and positioning system according to claim 5, characterized in that: The inner core (101) is fixedly connected to a first tail shank (1011) at its tail end, and the first marking notch is provided on the first tail shank (1011).

7. The biopsy sampling and positioning system according to claim 6, characterized in that: The sheath (102) is provided with a second tail shank (1021) at its tail end, and the second marking notch is provided on the second tail shank (1021); When the first tailstock (1011) abuts against the second tailstock (1021), the inner core (101) is located in the first position inside the sheath (102).

8. The biopsy sampling and positioning system according to claim 7, characterized in that: The tail end of the second tailstock (1021) is provided with a slot, and the front end of the first tailstock (1011) is provided with a plug post (1013) that can be inserted into the slot, and a sealing ring (1014) is provided on the plug post (1013).

9. The biopsy sampling and positioning system according to claim 1, characterized in that: The positioning locking component (201) includes a locking ring (2011) and a locking bolt (2012) disposed on the locking ring (2011). The locking ring (2011) is sleeved on the sheath (102). The locking bolt (2012) is used to lock the locking ring (2011) on the sheath (102) or to unlock the locking ring (2011) from the sheath (102).

10. The biopsy sampling and positioning system according to claim 2, characterized in that: An electromagnetic sensor (204) is also embedded in the front end of the inner core (101) near the first sampling notch (1031).

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