CN118452993A - Biopsy forceps capable of continuous sampling - Google Patents

Abstract

The present invention is applicable to the technical field of tissue sampling, and provides a biopsy forceps capable of continuous sampling, comprising a biopsy forceps assembly, wherein a sampling assembly is plugged into and matched inside the biopsy forceps assembly, the biopsy forceps assembly comprising a shearing piece, a sample removing piece plugged into and matched inside the shearing piece, and a sample storing piece plugged into and matched inside the shearing piece; the sampling assembly comprises a sample guide piece and a needle piece slidably matched inside the sample guide piece, and during use of the biopsy forceps, the process of continuous sampling can be achieved without the need for additional power or other additional operation processes, thereby improving the applicability of the biopsy forceps, and during use, continuous sampling and the intermittent storage process of multiple lesion tissues after sampling can be achieved by only stretching and moving the sampling needle itself and cooperating with the intermittent fitting process between multiple sample removing arc plates and the sampling needle, thereby avoiding affecting the subsequent lesion tissue detection and analysis results.

Description

Biopsy forceps capable of continuous sampling

Technical Field

The present invention relates to the technical field of tissue sampling, and more particularly to a biopsy forceps capable of continuous sampling.

Background Art

Biopsy forceps is a medical tool used to bite and take samples from lesions in the human abdominal cavity. It is generally used in conjunction with an endoscope. During endoscopic examination, when a pathological examination of the lesion is required, the biopsy forceps is sent into the patient's body through the endoscopic forceps channel to clamp and cut the tissue of the lesion. During the entire process, sampling with biopsy forceps has the advantages of less pain and less trauma.

At present, the biopsy forceps on the market often have the following problems during use:

During the use of existing biopsy forceps, continuous sampling is often not possible. Additional power or other additional operations are required to achieve continuous sampling, which reduces the applicability of the biopsy forceps. In addition, during use, continuous sampling and intermittent temporary storage of multiple lesion tissues after sampling cannot be performed, which easily leads to the accumulation of multiple lesion tissues after sampling, affecting the subsequent lesion tissue detection and analysis results.

Summary of the invention

In view of the shortcomings of the prior art, the purpose of the present invention is to provide a biopsy forceps that can realize continuous sampling and can realize the process of continuous sampling without the need for additional power or other additional operation processes, thereby improving the applicability of the biopsy forceps. During use, continuous sampling and the interval storage process of multiple lesion tissues after sampling can be realized only through the stretching and movement of the sampling needle itself, and the intermittent fitting process between multiple sample-removing arc plates and the sampling needle, thereby avoiding affecting the subsequent lesion tissue detection and analysis results. A biopsy forceps that can continuously sample.

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

A biopsy forceps capable of continuous sampling comprises a biopsy forceps assembly, wherein a sampling assembly is plugged into the biopsy forceps assembly, the biopsy forceps assembly comprises a shearing piece, a sample removing piece plugged into the shearing piece, and a sample storing piece plugged into the shearing piece.

The sampling assembly comprises a sample guide and a needle member slidably fitted inside the sample guide.

The shearing piece includes an outer shell cylinder, two symmetrical guide grooves are fixed on the inner wall of the outer shell cylinder, and two symmetrical side plates are fixed on the outer end of the outer shell cylinder, and pins are fixed to the opposite sides of the two side plates, and the two side surfaces of the pins are rotatably matched with the first rotating frame, and the two side surfaces of the pins are rotatably matched with the second rotating frame on the side away from the first rotating frame, a first pliers tool is fixed between the two first rotating frames, and a second pliers tool is fixed between the two second rotating frames, and semicircular through holes are penetrated on one outer side of the first pliers tool and the second pliers tool, and a first pin column is fixed on one side of the first rotating frame and the second rotating frame, and a shear arm is rotatably matched with the side surface of the first pin column, and a pin hole rotatably matched on the sampling component is penetrated on one side of the shear arm.

The present invention is further configured such that: guide threaded columns are fixed inside the two guide grooves.

The sample stripping member comprises cross slide rails respectively slidably matched inside the two guide grooves, and one side of the two cross slide rails is penetrated by a slide hole plugged and matched on the guide thread column.

The present invention is further configured as follows: a sample removal cylinder is fixed between the two cross slide rails, and two symmetrical first rectangular grooves are formed on the inner wall of the sample removal cylinder.

The sample guide member comprises two first slide plates respectively slidably fitted in the two first rectangular grooves, a sample guide tube is fixed between the two first slide plates, a conical sleeve is fixed at one end of the sample guide tube, and a connecting flange is fixed at one end of the conical sleeve.

A plurality of threaded connection columns which are plugged and matched with the connection flange are fixed on the outer end of the outer shell.

The present invention is further configured as follows: two symmetrical base plates are fixed to the inner wall of the connecting flange, a rectangular column is fixed to one side of the two base plates, a sliding plate is slidably fitted on the peripheral side surfaces of the two rectangular columns, and a reset spring that is sleeved and fitted on the peripheral side surfaces of the rectangular columns is fixed between the sliding plate and the connecting flange.

A side baffle is fixed to one opposite side of the sliding plate, and a second pin shaft hingedly matched on the pin shaft hole is fixed to one side of the side baffle.

The present invention is further configured as follows: a sliding hole is provided at one end of the sample guide tube, and two symmetrical limiting grooves are provided on the inner wall of the sliding hole.

The needle head part includes a sampling needle that is slidably fitted inside the sliding hole, a plurality of barbs are fixed on the peripheral side of the sampling needle near the sampling end, two symmetrical limit rails are fixed on the peripheral side of the sampling needle, the limit rails are slidably fitted with the limit grooves, and a movable plate that is in contact with the two sliding plates is fixed on the peripheral side of the sampling needle.

The present invention is further configured as follows: two symmetrical sample guiding inclined surfaces are fixed on the inner wall of the sample guiding tube, and a sample outlet is formed through the peripheral side surface of the sample guiding tube above the two sample guiding inclined surfaces.

The inner wall of the sample removal cylinder is provided with two symmetrical second rectangular grooves above the two first rectangular grooves.

The sample storage member includes two symmetrical second slide plates, and the second slide plates are slidably matched with the second rectangular groove.

The present invention is further configured as follows: a semi-arc material storage shell slidingly matched inside the sample removal cylinder is fixed between the two second slides, a plurality of partitions are fixed on the inner wall of the semi-arc material storage shell in a linear array, and a sample storage cavity is formed between two adjacent partitions.

A connecting ear plate which is plugged and matched with a guiding thread column is fixed on an outer side surface of the semi-arc material storage shell.

The present invention is further configured as follows: a displacement groove is provided through the outer peripheral side surface of the sample guiding tube above the two sample guiding inclined surfaces.

A plurality of positioning rods are fixed on the inner wall of the sample removal cylinder in a linear array, and a limiting disk is fixed on the top of each of the positioning rods.

A sliding transverse plate is slidably matched between the plurality of positioning rods, and a plurality of elastic springs respectively sleeved and matched on the plurality of positioning rods are fixed between the sliding transverse plate and the sample removal cylinder.

The present invention is further configured as follows: a plurality of oblique rods distributed in a linear array are fixed on the top of the sliding horizontal plate, and a plurality of oblique rods are each fixed on the top of a plurality of the oblique rods with a sample-removing arc plate intermittently fitted with the sampling needle.

Symmetrical two side lateral connecting plates are fixed to the inner wall of the sample removal cylinder near one end face, a rotating cylinder is rotatably coupled between the two lateral connecting plates via a torsion spring, two symmetrical rocker plates are fixed to the peripheral side of the rotating cylinder, a fitting column that fits with the sliding cross plate is fixed between the two rocker plates, and a pressing inclined plate is fixed to the peripheral side of the rotating cylinder.

The advantages of the present invention are:

During use of the present invention, continuous sampling can be achieved by simply pushing the sampling needle in the sampling piece repeatedly without adding additional power or performing other additional operations. The entire process is simple and easy to operate, thereby improving the applicability of the biopsy forceps.

When the present invention is used, by pressing the pressing inclined plate, the pressing inclined plate gradually moves away from the center position of the sample stripping cylinder, and in combination with the rotating cylinder that rotates and cooperates between the two side connecting plates through the torsion spring, the two rocker plates fixed on the peripheral side of the rotating cylinder are driven to tilt up inside the sample stripping cylinder, so that the fitting column fixed between the two rocker plates gradually becomes tangent to and fits with the sliding cross plate, thereby driving the sliding cross plate to move, and at the same time stretching a plurality of elastic springs, so that the sample stripping arc plates respectively fixed on the tops of the plurality of inclined rods gradually contact with the peripheral side of the sampling needle, generating a blocking force on the lesion tissue at the sampling end of the sampling needle, causing the lesion tissue plugged and fixed on the sampling end of the sampling needle to fall off, and begin to pass through the two sample guide inclined surfaces in turn, and fall from the sample outlet to the first sample storage cavity in the sample storage part, thereby performing temporary storage, facilitating the subsequent continuous sampling process.

In the present invention, multiple lesion tissues that fall off the sampling end of the sampling needle pass through the two sample guide slopes fixed on the inner wall of the sample guide tube in sequence, and finally fall from the sample outlet to the multiple sample storage cavities in the sample storage part, thereby forming temporary separation and storage, thereby realizing a continuous sampling process in the whole process, avoiding the accumulation of multiple lesion tissues after continuous sampling, which affects the subsequent lesion tissue detection and analysis results.

During the use of the present invention, continuous sampling and the interval storage of multiple lesion tissues after sampling can be achieved only through the stretching and movement of the sampling needle itself and the intermittent fitting process between multiple sample-removing arc plates and the sampling needle, thereby avoiding affecting the subsequent lesion tissue detection and analysis results.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a biopsy forceps capable of continuous sampling according to the present invention.

FIG. 2 is a schematic structural diagram of the biopsy forceps assembly of the present invention.

FIG. 3 is a schematic diagram of the structure of the sampling assembly of the present invention.

FIG. 4 is a schematic structural diagram of the shearing member of the present invention.

FIG. 5 is a front view of the shearing member of the present invention.

FIG. 6 is a right side view of the shearing piece of the present invention.

FIG. 7 is a schematic structural diagram of the sample stripping member of the present invention.

FIG8 is a schematic diagram of the cross-sectional structure of the sample stripping member of the present invention.

FIG. 9 is a schematic diagram of the structure of the sample storage member of the present invention.

FIG. 10 is a schematic structural diagram of the sample guide member of the present invention.

FIG. 11 is a side view of the sample guide of the present invention.

FIG. 12 is a schematic diagram of a cross-sectional structure of the sample guide member of the present invention at another angle.

FIG. 13 is a side view of FIG. 12 of the present invention.

FIG. 14 is a schematic structural diagram of a needle member of the present invention.

In the figure: 1, biopsy forceps assembly; 2, sampling assembly; 3, shearing piece; 4, sample removal piece; 5, sample storage piece; 6, sample guide piece; 7, needle piece; 301, outer shell; 302, guide groove; 303, side plate; 304, pin; 305, first rotating frame; 306, second rotating frame; 307, first clamp head tool; 308, second clamp head tool; 309, semicircular through hole; 310, first pin shaft column; 311, shear arm; 312, pin shaft hole; 313, guide thread column; 314, threaded connection column; 401, cross slide; 402, slide hole; 403, sample removal cylinder; 404, first rectangular groove; 405, second rectangular groove; 406, positioning rod; 407, limit plate; 408, sliding cross plate; 409, elastic spring; 41 0, oblique rod; 411, sample-removing arc plate; 412, lateral connecting plate; 413, rotating cylinder; 414, seesaw; 415, fitting column; 416, pressing inclined plate; 501, second slide plate; 502, semi-arc storage shell; 503, partition plate; 504, sample storage chamber; 505, connecting ear plate; 601, first slide plate; 602, sample guide cylinder; 603, conical sleeve; 604, connecting flange; 605, bottom plate; 606, rectangular column; 607, sliding plate; 608, reset spring; 609, side baffle; 610, sliding hole; 611, limiting groove; 612, sample guide inclined surface; 613, sample outlet; 614, second pin shaft; 615, displacement groove; 701, sampling needle; 702, barb; 703, limiting rail; 704, moving plate.

DETAILED DESCRIPTION

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

Embodiment 1, please refer to Figures 1-14, the present invention provides the following technical solutions: a biopsy forceps capable of continuous sampling, specifically, comprising a biopsy forceps assembly 1, wherein the biopsy forceps assembly 1 is plugged with a sampling assembly 2, the biopsy forceps assembly 1 comprises a shearing piece 3, a sample removing piece 4 plugged with the inside of the shearing piece 3, and a sample storing piece 5 plugged with the inside of the shearing piece 3; the sampling assembly 2 comprises a sample guide piece 6 and a needle piece 7 slidably fitted inside the sample guide piece 6; the shearing piece 3 comprises an outer shell tube 301, the inner wall of the outer shell tube 301 is fixed with two symmetrical guide grooves 302, the outer end of the outer shell tube 301 is fixed with two symmetrical side plates 303, the opposite side of the two side plates 303 are fixed with pins 304, the two pins The side surfaces of 304 are rotatably matched with the first rotating frame 305, and the side surfaces of the two pin shafts 304 are rotatably matched with the second rotating frame 306 on the side away from the first rotating frame 305. A first clamp head tool 307 is fixed between the two first rotating frames 305, and a second clamp head tool 308 is fixed between the two second rotating frames 306. Semicircular through holes 309 are penetrated on one outer side surface of the first clamp head tool 307 and the second clamp head tool 308. A first pin shaft column 310 is fixed on one side of the first rotating frame 305 and the second rotating frame 306. The side surfaces of the first pin shaft column 310 are rotatably matched with shear arms 311, and a pin shaft hole 312 rotatably matched with the sampling component 2 is penetrated on one side of the shear arm 311.

Furthermore, guide threaded columns 313 are fixed inside the two guide grooves 302, and the sample stripping member 4 includes a cross slide rail 401 that is respectively slidably fitted inside the two guide grooves 302, and a slide hole 402 that is plugged into the guide threaded column 313 is penetrated on one side of the two cross slide rails 401; a sample stripping cylinder 403 is fixed between the two cross slide rails 401, and two symmetrical first rectangular grooves 404 are opened on the inner wall of the sample stripping cylinder 403; the sample guide member 6 includes two first slide plates 601 that are respectively slidably fitted inside the two first rectangular grooves 404, a sample guide cylinder 602 is fixed between the two first slide plates 601, a conical sleeve 603 is fixed at one end of the sample guide cylinder 602, and a connecting flange 604 is fixed at one end of the conical sleeve 603; a plurality of threaded connecting columns 314 that are plugged into the connecting flange 604 are fixed on the outer end of the outer shell cylinder 301; two symmetrical bottom plates 605 are fixed on the inner wall of the connecting flange 604, and the two bottom plates 605 are connected to the inner wall of the connecting flange 604. A rectangular column 606 is fixed on each side, and a sliding plate 607 is slidably matched with the side surfaces of the two rectangular columns 606. A return spring 608 that is sleeved and matched on the side surfaces of the rectangular columns 606 is fixed between the sliding plate 607 and the connecting flange 604; a side baffle plate 609 is fixed on the opposite side of the sliding plate 607, and a second pin 614 that is hinged and matched on the pin hole 312 is fixed on one side of the side baffle plate 609; a sliding hole 610 is provided at one end of the sample guide cylinder 602, and two symmetrical limiting grooves 611 are provided on the inner wall of the sliding hole 610; the needle part 7 includes a sampling needle 701 that is slidably matched inside the sliding hole 610, and a plurality of barbs 702 are fixed on the side surface of the sampling needle 701 near the sampling end, and two symmetrical limiting rails 703 are fixed on the side surface of the sampling needle 701, and the limiting rails 703 are slidably matched with the limiting grooves 611, and a moving plate 704 that is in contact with the two sliding plates 607 is fixed on the side surface of the sampling needle 701.

The specific application of this embodiment 1 is:

Before the process of lesion sampling, the two cross slide rails 401 are first slidably inserted into the two guide grooves 302 respectively, so as to complete the sliding plug-in process between the outer shell tube 301 and the sample removal member 4. After the sliding plug-in process between the outer shell tube 301 and the sample removal member 4, the first slide plate 601 is then slidably inserted into the two first rectangular grooves 404 opened on the inner wall of the sample removal tube 403, until the connecting flange 604 fixed to one end of the tapered sleeve 603 and the plurality of threaded connecting columns 314 fixed to the outer end of the outer shell tube 301 are plugged in and matched in sequence, and then fixed by the threaded connection between the external nut and the threaded connecting column 314, so as to complete the sliding plug-in and fixed installation process of the sample guide member 6 and the sample removal member 4, so that the sample guide member 6 is slidably plugged and installed inside the sample removal member 4, so as to carry out the later sample removal and sample guiding process;

During the process of lesion sampling, the sampling needle 701 is pushed to slide inside the sliding hole 610 and gradually enter the cutting sampling structure (the cutting sampling structure here is the structure composed of the first clamp head tool 307 and the second clamp head tool 308 in the first embodiment). When the sampling end of the sampling needle 701 gradually enters the cutting sampling structure, the movable plate 704 fixed to the side surface of the sampling needle 701 begins to gradually fit with the two sliding plates 607 and gradually approaches the two sliding plates 607, thereby applying a force to the two sliding plates 607 respectively, so that The two return springs 608 connected and fixed between the sliding plate 607 and the connecting flange 604 begin to compress. During the compression of the return springs 608, a certain auxiliary support effect can be activated, thereby driving the two shear arms 311 to respectively expand and hinge between the two sets of first pin shaft columns 310 and the second pin shaft 614 to perform a relative expansion, so that the two first rotating frames 305 and the second rotating frames 306 that are rotatably matched on the two pin shafts 304 are closed to each other. When the two first rotating frames 305 and the second rotating frames 306 are closed to each other, the two first rotating frames 305 and the second rotating frames 306 that are fixedly connected to the two first rotating frames 30 The first clamp cutter 307 between the two second rotating frames 306 and the second clamp cutter 308 fixedly connected between the two second rotating frames 306 also follow the horizontal closing and tightening action, so that the lesion tissue is sampled and cut through the mutual closing and tightening process of the first clamp cutter 307 and the second clamp cutter 308, so that the lesion tissue after sampling and cutting falls between the mutually closed and tightened first clamp cutter 307 and the second clamp cutter 308. During the sampling process after cutting, the sampling needle 701 is continuously pushed so that the sampling end of the sampling needle 701 is gradually inserted into the first clamp cutter 307 and the second clamp cutter 308 after cutting. 07 and the second forceps cutter 308, during the insertion process, the several barbs 702 arranged on the side of the sampling needle 701 can prevent it from falling off during the sampling and storage process after cutting, which will affect the subsequent continuous cutting sampling and storage process. During the entire cutting and sampling process, the above operation can be repeatedly performed to achieve a continuous sampling process throughout the entire process without the need for additional power or other additional operation processes. The whole process is simple and easy to operate, and the continuous sampling process can be achieved by only using the original structure itself, thereby improving the applicability of the biopsy forceps.

Embodiment 2, please refer to Figures 1-14. Embodiment 2 is improved on the basis of Embodiment 1 as follows. Specifically, two symmetrical sample guiding inclined surfaces 612 are fixed on the inner wall of the sample guiding cylinder 602, and a sample outlet 613 is provided on the side surface of the sample guiding cylinder 602 above the two sample guiding inclined surfaces 612; two symmetrical second rectangular grooves 405 are provided on the inner wall of the sample removing cylinder 403 above the two first rectangular grooves 404; the sample storage member 5 includes two symmetrical second slide plates 501, and the second slide plates 501 are connected to the first slide plates 501. The two rectangular grooves 405 are slidably matched; a semi-arc storage shell 502 is fixed between the two second slides 501 and is slidably matched inside the sample removal cylinder 403. The inner wall of the semi-arc storage shell 502 is fixed with a plurality of partitions 503 in a linear array, and a sample storage cavity 504 is formed between two adjacent partitions 503; a connecting ear plate 505 that is plugged and matched with a guide thread column 313 is fixed on an outer side surface of the semi-arc storage shell 502; a position is opened through the outer peripheral side surface of the sample guide cylinder 602 above the two sample guide inclined surfaces 612 The inner wall of the sample removal cylinder 403 is fixed with a plurality of positioning rods 406 in a linear array, and the tops of the plurality of positioning rods 406 are fixed with a limit plate 407; a sliding cross plate 408 is slidably matched between the plurality of positioning rods 406, and a plurality of elastic springs 409 respectively sleeved and matched on the plurality of positioning rods 406 are fixed between the sliding cross plate 408 and the sample removal cylinder 403; a plurality of oblique rods 410 distributed in a linear array are fixed on the top of the sliding cross plate 408, and the plurality of oblique rods 410 are fixed on the top of the sliding cross plate 408. A sample-removing arc plate 411 is fixed on the top and intermittently fits with the sampling needle 701; symmetrical two side connecting plates 412 are fixed to the inner wall of the sample-removing cylinder 403 near one end face, and a rotating cylinder 413 is rotatably matched between the two side connecting plates 412 through a torsion spring, and two symmetrical rocker plates 414 are fixed to the side surfaces of the rotating cylinder 413, and a fitting column 415 that fits with the sliding cross plate 408 is fixed between the two rocker plates 414, and a pressing inclined plate 416 is fixed to the side surfaces of the rotating cylinder 413.

The specific application of this embodiment 2 is:

After the sample guide member 6 in the first embodiment is installed in the sample stripping member 4 by sliding and plugging, the second slide plate 501 is slidably plugged into the second rectangular groove 405 provided on the inner wall of the sample stripping cylinder 403, until the connecting ear plate 505 fixed on the outer side surface of the semi-arc storage shell 502 is plugged into a guide thread column 313, and then fixed by threaded connection between the external nut and the guide thread column 313, so that the sample storage member 5 is connected and fixed inside the sample stripping cylinder 403, so as to perform interval storage after continuous sampling;

During the cutting sampling process, after the lesion tissue is cut and fixed by the sampling needle 701, the sampling needle 701 is pulled to make the sampling needle 701 slide inside the sliding hole 610 opened at one end of the sample guide tube 602. During the sliding process, the lesion tissue inserted on the sampling needle 701 will enter the interior of the sample removal tube 403 along with the sliding process of the sampling needle 701 inside the sample guide tube. When the lesion tissue inserted on the sampling needle 701 enters the sample storage part 5 fixed inside the sample removal tube 403 and moves to the first sample storage cavity 504 among the plurality of sample storage cavities 504 formed between two adjacent partitions 503, the sample storage cavity 504 is moved to the first sample storage cavity 504. When the sample needle 701 is pulled upward, the pulling process of the sampling needle 701 is stopped. After the pulling process is completed, the pressing inclined plate 416 fixed on the side of the rotating cylinder 413 begins to be pressed, so that the pressing inclined plate 416 gradually moves away from the center position of the sample removal cylinder 403. During the process of moving away, the rotating cylinder 413 that is rotated and matched between the connecting plates 412 on both sides rotates under the action of the torsion spring, and at the same time drives the two rocker plates 414 fixed on the side of the rotating cylinder 413 to tilt inside the sample removal cylinder 403, so that the fitting column 415 fixed between the two rocker plates 414 gradually tangents and fits with the sliding cross plate 408, thereby driving the sliding fitting The sliding cross plates 408 on the plurality of positioning rods 406 are moved, and at the same time, the plurality of elastic springs 409 connected and fixed between the sliding cross plates 408 and the sample removal cylinder 403 are stretched. During the stretching process, the sample removal arc plates 411 respectively fixed to the tops of the plurality of oblique rods 410 begin to gradually contact the peripheral side surfaces of the sampling needle 701 slidably fitted inside the sample guide cylinder 602. When the frontmost sample removal arc plate 411 among the plurality of sample removal arc plates 411 contacts the peripheral side surfaces of the sampling needle 701 (at this time, the lesion tissue plugged and fixed to the sampling end of the sampling needle 701 is located above the first sample storage cavity 504 among the plurality of sample storage cavities 504), , continue to pull the sampling needle 701 that is slidably fitted inside the sample removal cylinder 403. At this time, the frontmost sample removal arc plate 411 that fits with the sampling needle 701 will generate a blocking force on the lesion tissue plugged and fitted on the sampling end of the sampling needle 701 during the pulling process, and finally drive the lesion tissue plugged and fixed on the sampling end of the sampling needle 701 to fall off to the sampling end of the sampling needle 701. In the subsequent process, the lesion tissue that falls off from the sampling end of the sampling needle 701 begins to pass through the two sample guide slopes 612 fixed on the inner wall of the sample guide cylinder 602 in turn, and falls from the sample outlet 613 to the first sample storage cavity 504 in the sample storage part 5, so as to be temporarily stored;

In the subsequent sampling process, the sampling needle 701 that is slidably engaged inside the sample guide tube 602 is repeatedly pulled, so that the sampling end of the sampling needle 701 with the lesion tissue is moved sequentially to the top of the multiple sample storage cavities 504 in the sample storage member 5. When the sampling end of the sampling needle 701 with the lesion tissue is sequentially located above the multiple sample storage cavities 504 in the sample storage member 5, it is necessary to press the pressing inclined plate 416 fixed on the side surface of the rotating cylinder 413, so that the pressing inclined plate 416 gradually moves away from the center position of the sample removal cylinder 403. During the moving away process, the rotating cylinder 413 that is rotatably engaged between the two side connecting plates 412 through the torsion spring rotates under the action of the torsion spring, and at the same time drives the two sides fixed on the side surfaces of the rotating cylinder 413 The seesaw 414 tilts up inside the sample removal cylinder 403, causing the fitting column 415 fixed between the two seesaws 414 to gradually become tangent to and fit with the sliding cross plate 408, thereby driving the sliding cross plate 408 slidably fitted on the plurality of positioning rods 406 to move, and at the same time stretching the plurality of elastic springs 409 connected and fixed between the sliding cross plate 408 and the sample removal cylinder 403. During the stretching process, the sample removal arc plates 411 fixed at the tops of the plurality of oblique rods 410 respectively begin to gradually contact the peripheral side surfaces of the sampling needle 701 slidably fitted inside the sample guide cylinder 602. When the frontmost sample removal arc plate 411 among the plurality of sample removal arc plates 411 contacts the peripheral side surfaces of the sampling needle 701 (at this time, the sampling needle 701 is removed). The lesion tissue plugged and fixed at the sampling end of the sampling needle 701 can be located above the sample storage cavity 504 at multiple different positions as the sampling needle 701 slides inside the sample guide tube 602), and the sampling needle 701 that is slidably fitted inside the sample removal tube 403 is continued to be pulled. At this time, the sample removal arc plate 411 that fits the sampling needle 701 will generate a blocking force on the lesion tissue plugged and fitted at the sampling end of the sampling needle 701 during the pulling process, and finally drive the lesion tissue plugged and fixed at the sampling end of the sampling needle 701 to fall off to the sampling end of the sampling needle 701. In the subsequent process, the lesion tissue that falls off from the sampling end of the sampling needle 701 begins to pass through the two sample guide inclined surfaces 612 fixed on the inner wall of the sample guide tube 602 in sequence, and is respectively It falls from the sample outlet 613 into the multiple sample storage cavities 504 in the sample storage part 5, and is temporarily stored therein, thereby realizing a continuous sampling process in the whole process, and being able to realize that the multiple lesion tissues after continuous sampling fall into different sample storage cavities 504 in turn, thereby avoiding the accumulation of the multiple lesion tissues after continuous sampling, which would affect the subsequent lesion tissue detection and analysis results. At the same time, during the entire continuous sampling process, the continuous sampling and the interval storage of the multiple lesion tissues after sampling can be realized by only stretching and moving the sampling needle 701 itself, and cooperating with the intermittent fitting process between the multiple sample removal arc plates 411 and the sampling needle 701, thereby avoiding affecting the subsequent lesion tissue detection and analysis results.

Obviously, the embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (9)

1. Biopsy forceps capable of continuously sampling, comprising a biopsy forceps assembly (1), wherein the biopsy forceps assembly (1) is internally spliced and matched with a sampling assembly (2), and the biopsy forceps is characterized in that:

the biopsy forceps assembly (1) comprises a shearing piece (3), a sample removing piece (4) which is spliced and matched inside the shearing piece (3) and a sample storing piece (5) which is spliced and matched inside the shearing piece (3);

the sampling assembly (2) comprises a sample guide piece (6) and a needle head piece (7) which is in sliding fit with the inside of the sample guide piece (6);

The shearing piece (3) comprises a shell cylinder (301), two symmetrical guide channels (302) are fixed on the inner wall of the shell cylinder (301), two symmetrical side plates (303) are fixed on the outer end portion of the shell cylinder (301), a pin shaft (304) is fixed on one side face opposite to the side plates (303), a first rotating frame (305) is rotatably matched with one side of the peripheral side face of the pin shaft (304), a second rotating frame (306) is rotatably matched with one side of the peripheral side face of the pin shaft (304), a first clamp head cutter (307) is fixed between the first rotating frame (305), a second clamp head cutter (308) is fixed between the second rotating frame (306), semicircular through holes (309) are formed in the outer side faces of the first clamp head cutter (307) and the second clamp head cutter (308) in a penetrating mode, a first pin shaft column (310) is fixedly arranged on one side of the first rotating frame (305) and one side of the second rotating frame (306), a first pin column (310) is rotatably matched with an arm (311) on one side of the shearing component (312), and a shearing component (2) is arranged on one side of the shearing component.

2. A biopsy forceps for continuous sampling as claimed in claim 1, wherein: guide threaded columns (313) are fixed inside the two guide channels (302);

The sample removing piece (4) comprises cross sliding rails (401) which are respectively in sliding fit with the insides of the two guide channels (302), and sliding holes (402) which are in insertion fit with the guide threaded columns (313) are formed in one side of each cross sliding rail (401) in a penetrating mode.

3. A biopsy forceps for continuous sampling as claimed in claim 2, wherein: a sample removing cylinder (403) is fixed between the two cross slide rails (401), and two symmetrical first rectangular grooves (404) are formed in the inner wall of the sample removing cylinder (403);

The sample guiding piece (6) comprises two first sliding plates (601) which are respectively in sliding fit with the interiors of the two first rectangular grooves (404), a sample guiding cylinder (602) is fixed between the two first sliding plates (601), a conical sleeve (603) is fixed at one end of the sample guiding cylinder (602), and a connecting flange (604) is fixed at one end of the conical sleeve (603);

the outer end part of the shell tube (301) is fixedly provided with a plurality of threaded connecting columns (314) which are in plug-in fit with the connecting flange (604).

4. A biopsy forceps for continuous sampling as claimed in claim 3, wherein: two symmetrical bottom plates (605) are fixed on the inner wall of the connecting flange (604), rectangular columns (606) are fixed on one sides of the two bottom plates (605), sliding plates (607) are slidably matched with the peripheral sides of the two rectangular columns (606), and reset springs (608) which are sleeved and matched with the peripheral sides of the rectangular columns (606) are fixed between the sliding plates (607) and the connecting flange (604);

the sliding plate (607) is fixed with a side baffle (609) on the opposite side, and a second pin shaft (614) which is hinged and matched with the pin shaft hole (312) is fixed on one side of the side baffle (609).

5. A biopsy forceps for continuous sampling as claimed in claim 4, wherein: a sliding hole (610) is formed in one end of the sample guide cylinder (602), and two symmetrical limiting grooves (611) are formed in the inner wall of the sliding hole (610);

Needle head spare (7) are in including sliding fit sampling needle (701) inside slide hole (610), sampling needle (701) week side is close to the sampling end and is fixed with a plurality of barbs (702), sampling needle (701) week side is fixed with two spacing rails (703) of symmetry, spacing rail (703) and spacing groove (611) sliding fit, sampling needle (701) week side be fixed with two movable plate (704) of laminating each other sliding plate (607).

6. A biopsy forceps for continuous sampling as claimed in claim 5, wherein: two symmetrical sample guiding inclined planes (612) are fixed on the inner wall of the sample guiding cylinder (602), and a sample outlet (613) is formed in a penetrating manner on the peripheral side surface of the sample guiding cylinder (602) above the two sample guiding inclined planes (612);

Two symmetrical second rectangular grooves (405) are formed in the inner wall of the sample removing cylinder (403) above the two first rectangular grooves (404);

the sample storage piece (5) comprises two symmetrical second sliding plates (501), and the second sliding plates (501) are in sliding fit with the second rectangular grooves (405).

7. A biopsy forceps for continuous sampling as claimed in claim 6, wherein: a half-arc storage shell (502) which is in sliding fit with the inside of the sample removing cylinder (403) is fixed between the two second sliding plates (501), a plurality of partition plates (503) are fixed on the inner wall of the half-arc storage shell (502) in a linear array, and a sample storage cavity (504) is formed between two adjacent partition plates (503);

An outer side surface of the half-arc storage shell (502) is fixed with a connecting lug plate (505) which is in plug-in fit with one guide threaded column (313).

8. A biopsy forceps for continuous sampling as claimed in claim 7, wherein: a displacement groove (615) is formed in the upper part of the two sample guiding inclined planes (612) on the peripheral side surface of the sample guiding cylinder (602) in a penetrating way;

A plurality of positioning rods (406) are fixed on the inner wall of the sample removing cylinder (403) in a linear array, and limiting discs (407) are fixed on the tops of the positioning rods (406);

A plurality of locating rods (406) are in sliding fit with a sliding transverse plate (408), and a plurality of elastic springs (409) which are respectively sleeved and matched on the locating rods (406) are fixed between the sliding transverse plate (408) and the sample removing cylinder (403).

9. A biopsy forceps for continuous sampling as claimed in claim 8, wherein: a plurality of inclined rods (410) distributed in a linear array are fixed at the top of the sliding transverse plate (408), and sample removing arc plates (411) intermittently attached to the sampling needles (701) are fixed at the tops of the inclined rods (410);

The inner wall of the sample removing cylinder (403) is fixed with symmetrical two lateral connecting plates (412) close to one end face, a rotating cylinder (413) is arranged between the two lateral connecting plates (412) in a rotating fit mode through a torsion spring, two symmetrical seekers (414) are fixed on the peripheral side face of the rotating cylinder (413), a binding post (415) which is mutually bound with the sliding transverse plate (408) is fixed between the two seekers (414), and a pressing inclined plate (416) is fixed on the peripheral side face of the rotating cylinder (413).