Biopsy forceps, endoscope system and biopsy imaging system

Abstract

The embodiment of the invention provides biopsy forceps, an endoscope system and a biopsy imaging system.The biopsy forceps, the endoscope system and the biopsy imaging system relate to the technical field of medical instruments.The biopsy forceps are used for solving the technical problems that the grabbing position of the biopsy forceps is difficult to accurately position, the grabbing process of focus tissue is complex, and the grabbing time is long. The first channel penetrates through the handle in the axial direction of the handle; a sliding hole is formed in the handle; the sliding hole is communicated with the first channel; the clamp head comprises a first clamp body and a second clamp body; the first clamp body and the second clamp body are rotationally connected with the outer tube; the first clamp body and the second clamp body are slidably connected with the push rod. When the sliding block slides along the sliding hole, the sliding block drives the first clamp body and the second clamp body to rotate relative to the outer tube through the push rod, so that the first clamp body and the second clamp body are opened or closed; a third channel is formed in the push rod and penetrates through the push rod in the axial direction of the push rod. One end of the third channel communicates with the first channel, and the other end of the third channel is located at the tong head.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a biopsy forceps, an endoscope system, and a biopsy imaging system. Background Art

[0002] With the continuous progress of medical technology, medical devices such as endoscopes and biopsy forceps are widely used in clinical practice to achieve precise positioning, observation, and grasping of diseased tissues.

[0003] Currently, the diseased area is generally located through the positioning function of the endoscope. The biopsy forceps reach the diseased tissue through the channel of the endoscope, and then grasp the diseased tissue.

[0004] However, it is difficult to accurately position the grasping position of the biopsy forceps, the grasping process of the diseased tissue is complex, and the grasping time is long. Therefore, this application proposes a biopsy forceps, an endoscope system, and a biopsy imaging system. Summary of the Invention

[0005] This application provides a biopsy forceps, an endoscope system, and a biopsy imaging system to solve the technical problems that it is difficult to accurately position the grasping position of the biopsy forceps, the grasping process of the diseased tissue is complex, and the grasping time is long.

[0006] To achieve the above object, the embodiments of this application provide the following technical solutions:

[0007] In a first aspect, the embodiments of this application provide a biopsy forceps, including:

[0008] A handle, within which a first channel is formed, and the first channel penetrates the handle in the axial direction of the handle; a sliding hole is formed on the handle, and the sliding hole is located on the side of the handle; the sliding hole communicates with the first channel;

[0009] A slider, inserted into the sliding hole, and the slider is slidably connected to the handle;

[0010] A push rod, inserted into the first channel, one end of the push rod is fixedly connected to the slider, and the other end of the push rod is located outside the first channel;

[0011] An outer tube, sleeved on the push rod; the outer tube is fixedly connected to the handle;

[0012] A forceps head, including a first forceps body and a second forceps body; the first forceps body and the second forceps body are rotatably connected to the outer tube; the first forceps body and the second forceps body are slidably connected to the push rod;

[0013] When the slider slides along the sliding hole, the slider drives the first jaw body and the second jaw body to rotate relative to the outer tube through the push rod, so that the first jaw body and the second jaw body open or close;

[0014] A third channel is formed on the push rod, and the third channel penetrates the push rod in the axial direction of the push rod; one end of the third channel is communicated with the first channel, and the other end of the third channel is located at the jaw head.

[0015] In some embodiments of the present application, the sliding hole penetrates through the handle, and both ends of the sliding hole are located on the side surface of the handle;

[0016] The slider includes a first slider and a second slider; the first slider includes a first insertion block; the second slider includes a second insertion block;

[0017] The first insertion block is inserted into the sliding hole from one end of the sliding hole, and the second insertion block is inserted into the sliding hole from the other end of the sliding hole; the first slider is fixedly connected to the second slider.

[0018] In some embodiments of the present application, the first slider includes a first slider body; a first receiving groove is formed on the first slider body;

[0019] The first receiving groove has a first groove side surface provided at the side of the first receiving groove; the first insertion block is provided on the first groove side surface;

[0020] The second slider includes a second slider body; a second receiving groove is formed on the second slider body;

[0021] The second receiving groove has a second groove side surface provided at the side of the second receiving groove; the second insertion block is provided on the second groove side surface;

[0022] The handle is inserted into the first receiving groove and the second receiving groove.

[0023] In some embodiments of the present application, the first insertion block and the second insertion block are arranged oppositely; a first slot is provided at the side end of the first insertion block close to the second insertion block; a second slot is provided at the side end of the second insertion block close to the first insertion block;

[0024] The push rod is arranged in the first slot and the second slot; the first slot and the second slot limit the push rod on the sliding block, and the first slot and the second slot restrict the push rod from rotating relative to the sliding block.

[0025] In some embodiments of the present application, the push rod includes a push rod body and a fixed tube;

[0026] The fixed tube is sleeved on the push rod body; the fixed tube is fixedly connected to the push rod body; the fixed tube is arranged in the first slot and the second slot.

[0027] In some embodiments of the present application, the first jaw body includes a first grasping portion and a first connecting plate, and the first connecting plate is connected to the first grasping portion; a first sliding groove is provided on the first connecting plate;

[0028] The second jaw body includes a second grasping portion and a second connecting plate, and the second connecting plate is connected to the second grasping portion; a second sliding groove is provided on the second connecting plate;

[0029] A first limiting post and a second limiting post are provided on the side of the push rod, the first limiting post is inserted into the first sliding groove, and the second limiting post is inserted into the second sliding groove;

[0030] When the slider slides along the sliding hole, the slider drives the push rod to move, the first limiting post slides in the first sliding groove, the second limiting post slides in the second sliding groove, the first limiting post drives the first jaw body to rotate relative to the outer tube, and the second limiting post drives the second jaw body to rotate relative to the outer tube, so that the first grasping portion and the second grasping portion open or close.

[0031] In some embodiments of the present application, a first positioning hole is provided on the first connecting plate, and the first positioning hole is located between the first grasping portion and the first sliding groove;

[0032] A second positioning hole is provided on the second connecting plate, and the second positioning hole is located between the second grasping portion and the second sliding groove;

[0033] The first connecting plate is rotatably connected to the outer tube through the first positioning hole, and the second positioning plate is rotatably connected to the outer tube through the second positioning hole.

[0034] In some embodiments of the present application, the jaw head includes a first positioning post, the first positioning post is inserted into the first positioning hole and the second positioning hole, and both ends of the first positioning post are rotatably connected to the outer tube;

[0035] The second end of the push rod is located between the first connecting plate and the second connecting plate; the second end of the push rod is located on the side of the first positioning post away from the first grasping portion;

[0036] A first through hole penetrating through the first positioning post is formed on the first positioning post.

[0037] In some embodiments of the present application, the handle includes a first end and a second end of the handle that are oppositely arranged in the axial direction of the handle;

[0038] The outer tube includes a first outer tube and a second outer tube; the first outer tube is located at the end of the outer tube, and the first outer tube is fixedly connected to the handle;

[0039] The second outer tube is connected to the first outer tube, and the second outer tube is located on one side of the first outer tube away from the first end of the handle.

[0040] In some embodiments of the present application, the handle includes a handle rod and a ferrule, and the ferrule is fixedly connected to the handle rod; the ferrule is located at the end of the handle rod away from the first end of the handle;

[0041] The first channel includes a first receiving hole; the first receiving hole is formed in the handle rod and / or the ferrule; a second receiving hole is formed in the ferrule; the first receiving hole is located on one side of the second receiving hole away from the second end of the handle;

[0042] The second outer tube is inserted into the second receiving hole; the connection between the ferrule and the handle rod confines the first outer tube in the first receiving hole; the side surface of the first receiving hole restricts the relative rotation of the first outer tube with respect to the first receiving hole.

[0043] In some embodiments of the present application, a first insertion hole is formed in the ferrule, the handle rod is inserted into the first insertion hole, protrusions are provided on the inner wall of the first insertion hole, and grooves are formed on the outer wall of the handle rod, and the protrusions are snapped into the grooves to fixedly connect the ferrule and the handle rod.

[0044] In some embodiments of the present application, the handle includes a wire sleeve, the wire sleeve is located at the second end of the handle, the wire sleeve is sleeved on the outer tube, and the wire sleeve is fixedly connected to the ferrule.

[0045] In some embodiments of the present application, the handle includes a first end of the handle and a second end of the handle that are oppositely arranged in the axial direction of the handle; the handle includes a handle rod and a hand-held part; the hand-held part is located at the first end of the handle, and the hand-held part is rotatably connected to the handle rod.

[0046] In some embodiments of the present application, a second insertion hole is formed at the end of the hand-held part, and a first limiting hole is formed on the hand-held part;

[0047] The first limiting hole is located on the side surface of the hand-held part; the first limiting hole is located at the end of the second insertion hole close to the first end of the handle; the first limiting hole communicates with the second insertion hole;

[0048] A claw is provided at an end of the handle rod close to the first end of the handle; the claw includes a connecting rod and a clamping block; the clamping block is connected to an end of the connecting rod away from the second end of the handle; the clamping block is inserted into the first limiting hole through the second jack;

[0049] After the clamping block is inserted into the first limiting hole, the inner side surface of the first limiting hole confines the clamping block within the first limiting hole.

[0050] In a second aspect, an embodiment of the present application provides an endoscope system, including an endoscope, a confocal microscopy probe, and the biopsy forceps described in the above embodiment;

[0051] An endoscope channel for the forceps head to pass through is formed in the endoscope;

[0052] The confocal microscopy probe enters the biopsy forceps through the first channel, and the confocal microscopy probe passes out of the push rod through the third channel.

[0053] In a third aspect, an embodiment of the present application provides a biopsy imaging system, including an endoscope, an ultrasonic probe, and the biopsy forceps described in the above embodiment;

[0054] An endoscope channel for the forceps head to pass through is formed in the endoscope;

[0055] The ultrasonic probe enters the biopsy forceps through the first channel, and the ultrasonic probe passes out of the push rod through the third channel.

[0056] The biopsy forceps, endoscope system, and biopsy imaging system provided by the present application have the following technical effects:

[0057] By providing that the biopsy forceps includes a handle, a slider, a push rod, an outer tube, and a forceps head, and the forceps head includes a first forceps body and a second forceps body, when the slider slides along the sliding hole, the slider drives the first forceps body and the second forceps body to rotate relative to the outer tube through the push rod, so that the first forceps body and the second forceps body open or close, enabling the operator to slide the slider to open or close the first forceps body and the second forceps body, enabling the forceps head to grasp the lesion tissue, with a simple grasping action, capable of achieving efficient grasping, convenient to operate, and having low technical requirements for the operator;

[0058] By providing that a first channel is formed inside the handle, the first channel axially penetrates the handle, a third channel is formed on the push rod, the third channel axially penetrates the push rod, one end of the third channel communicates with the first channel, and the other end of the third channel is located at the forceps head, it is possible to enable positioning and display structures such as a confocal microscopy probe and an ultrasonic probe to pass through the first channel and the third channel to reach the forceps head, enabling more accurate positioning of the lesion, being able to adjust the position and grasping angle of the forceps head according to the positioning and display results, achieving precise grasping, having high grasping efficiency and good grasping effect;

[0059] By providing the cooperation of an endoscope, a confocal microscopy probe and a biopsy forceps, or the cooperation of an endoscope, an ultrasonic probe and a biopsy forceps, it is possible to achieve precise positioning of the lesion area through high-precision microscopic imaging technology, and through the flexible operation of the biopsy forceps, to achieve the accuracy and efficiency of sample grasping, reduce the damage to the surrounding tissues of the human body, and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0061] Figure 1 Structural schematic diagram of a biopsy forceps according to an embodiment of the present application;

[0062] Figure 2 Cross-sectional view of the handle according to an embodiment of the present application;

[0063] Figure 3 Partial structural schematic diagram of a biopsy forceps according to an embodiment of the present application;

[0064] Figure 4 Schematic diagram of the combination of the first forceps body and the second forceps body according to an embodiment of the present application;

[0065] Figure 5 Partial structural schematic diagram of the biopsy forceps from another perspective according to an embodiment of the present application;

[0066] Figure 6 Top view of the slider according to an embodiment of the present application;

[0067] Figure 7 Cross-sectional view of the slider according to an embodiment of the present application;

[0068] Figure 8 Partial structural schematic diagram of the biopsy forceps from another perspective according to an embodiment of the present application;

[0069] Figure 9 Partial structural schematic diagram of another perspective of the biopsy forceps according to an embodiment of the present application;

[0070] Figure 10 Partial structural sectional view of the biopsy forceps according to an embodiment of the present application;

[0071] Figure 11 Partial structural diagram of another perspective of the biopsy forceps according to an embodiment of the present application;

[0072] Figure 12 Exploded view of the partial structure of the biopsy forceps according to an embodiment of the present application;

[0073] Figure 13 Partial structural diagram of another perspective of the biopsy forceps according to an embodiment of the present application;

[0074] Figure 14 Exploded view of the partial structure of another perspective of the biopsy forceps according to an embodiment of the present application;

[0075] Figure 15 Structural schematic diagram of the handheld part according to an embodiment of the present application;

[0076] Figure 16 Exploded view of the partial structure of another perspective of the biopsy forceps according to an embodiment of the present application;

[0077] Figure 17 Exploded view of the partial structure of another perspective of the biopsy forceps according to an embodiment of the present application;

[0078] Figure 18 Partial structural diagram of the outer tube according to an embodiment of the present application;

[0079] Figure 19 Partial structural diagram of the confocal microscope probe and the biopsy forceps according to an embodiment of the present application;

[0080] Figure 20 Partial structural diagram of the ultrasonic probe and the biopsy forceps according to an embodiment of the present application;

[0081] Figure 21 Schematic diagram of the endoscope channel according to an embodiment of the present application.

[0082] Explanation of reference numerals:

[0083] 1: Biopsy forceps;

[0084] 11: Handle;

[0085] 1111: First end of the handle; 1112: Second end of the handle;

[0086] 112: First channel; 1121: First accommodation hole;

[0087] 113: Handle rod; 1131: Sliding hole; 1132: Groove; 1133: Third receiving hole; 1134: Claw; 11341: Connecting rod; 11342: Clamping block; 1135: Sixth receiving hole;

[0088] 114: Ferrule; 1141: Second receiving hole; 1142: First jack; 1143: Protrusion;

[0089] 115: Wire sleeve; 1151: Wire sleeve through hole;

[0090] 116: Handheld part; 1161: Second jack; 1162: First limiting hole; 11621: First inner side; 1163: Handheld hole; 1164: Fourth receiving hole; 1165: Fifth receiving hole;

[0091] 12: Slide block;

[0092] 121: First slide block; 1211: First insertion block; 12111: First slot; 1212: First slide block body; 12121: First receiving groove; 121211: First groove side;

[0093] 122: Second slide block; 1221: Second insertion block; 12211: Second slot; 1222: Second slide block body; 12221: Second receiving groove; 122211: Second groove side;

[0094] 123: First connection hole; 1231: First hole; 1232: Second hole; 1233: Third hole;

[0095] 1241: Third positioning post; 1242: Third positioning hole;

[0096] 13: Push rod; 1311: First end of push rod; 1312: Second end of push rod; 132: Push rod body; 133: Fixed tube; 1341: First limiting post; 1342: Second limiting post; 135: Limiting tube;

[0097] 14: Outer tube; 1411: First end of outer tube; 1412: Second end of outer tube; 142: Second channel; 143: First outer tube; 144: Second outer tube; 1451: First positioning plate; 1452: Second positioning plate; 1453: Notch; 146: Third outer tube;

[0098] 15: Forceps head; 151: First forceps body; 1511: First grasping part; 15111: First grasping groove; 1512: First connecting plate; 15121: First sliding groove; 15122: First positioning hole; 152: Second forceps body; 1521: Second grasping part; 15211: Second grasping groove; 1522: Second connecting plate; 15221: Second sliding groove; 15222: Second positioning hole; 153: First positioning post; 1531: First through hole;

[0099] 21: Endoscope channel; 22: Positioning sheath;

[0100] 31: Confocal microscopy probe; 32: Ultrasound probe. Detailed implementation manner

[0101] As described in the background art, generally, the lesion is located through the positioning function of the endoscope. The biopsy forceps reach the lesion tissue through the channel of the endoscope, and then grasp the lesion tissue. During the grasping process, generally, the operator's experience and feel are relied on for grasping, which requires a relatively high level of operation skills for the operator. Moreover, it is difficult to ensure that the operator can grasp well each time. Especially in some complex or narrow positions, such as the gastrointestinal tract, urinary tract, etc., the positioning of the endoscope positioning device is more difficult. A slight mistake may lead to positioning deviation, making the grasping position of the biopsy forceps inaccurate. The operator may need to adjust the position of the biopsy forceps multiple times, making the grasping process of the lesion tissue complex and the grasping time long.

[0102] In view of the above technical problems, the present application provides a biopsy forceps, which includes a handle, a slider, a push rod, an outer tube, and a forceps head; a first channel is formed inside the handle, and the first channel penetrates the handle in the axial direction of the handle; a sliding hole is formed on the handle, and the sliding hole is located on the side of the handle; the sliding hole communicates with the first channel; the slider is inserted into the sliding hole, and the slider is slidably connected to the handle; the push rod is inserted into the first channel, one end of the push rod is fixedly connected to the slider, and the other end of the push rod is located outside the first channel; the outer tube is sleeved on the push rod, and the outer tube is fixedly connected to the handle; the forceps head includes a first forceps body and a second forceps body; the first forceps body and the second forceps body are rotatably connected to the outer tube; the first forceps body and the second forceps body are slidably connected to the push rod; when the slider slides along the sliding hole, the slider drives the first forceps body and the second forceps body to rotate relative to the outer tube through the push rod, so that the first forceps body and the second forceps body open or close; enabling the forceps head to grasp the lesion tissue, the grasping action is simple, efficient grasping can be achieved, and the operation is convenient, with low technical requirements for the operator. A third channel is formed on the push rod, and the third channel penetrates the push rod in the axial direction of the push rod; one end of the third channel communicates with the first channel, and the other end of the third channel is located at the forceps head, enabling positioning and display structures such as a confocal microscopy probe and an ultrasonic probe to pass through the first channel and the third channel to reach the forceps head, enabling more accurate positioning of the lesion, and being able to adjust the position and grasping angle of the forceps head according to the positioning and display results, achieving precise grasping, high grasping efficiency, and good grasping effect.

[0103] To make the purpose, implementation manner, and advantages of the present application clearer, the following will clearly and completely describe the exemplary implementation manner of the present application with reference to the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0104] It should be noted that the brief description of the terms in the present application is only for facilitating the understanding of the subsequent described implementation manner, rather than intending to limit the implementation manner of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and common meanings.

[0105] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0106] Refer to 1 and Figure 2 , the embodiment of the present application provides a biopsy forceps 1. The biopsy forceps 1 can extend into the lesion area in the human body through the endoscope channel of the endoscope, and then clamp the lesion tissue.

[0107] The biopsy forceps 1 includes a handle 11. The handle 11 includes a first end 1111 of the handle. The handle 11 includes a second end 1112 of the handle. The first end 1111 and the second end 1112 of the handle are oppositely arranged in the axial direction of the handle.

[0108] A first channel 112 is formed in the handle 11. The first channel 112 penetrates through the handle in the axial direction of the handle. The first channel 112 is used for a positioning and display structure such as a probe to pass through. The positioning and display structure can be a confocal microscopy probe. The positioning and display structure can be an ultrasonic probe. The positioning and display structure can also be other structures. The handle can be made of materials such as plastic, and the handle can be formed by injection molding.

[0109] A sliding hole 1131 is formed in the handle 11. The sliding hole 1131 is located on the side of the handle. The sliding hole communicates with the first channel. The sliding hole 1131 can be a long hole. The sliding hole can extend along the axial direction of the handle.

[0110] The biopsy forceps 1 includes a slider 12. The slider 12 is inserted into the sliding hole. The slider is slidably connected to the handle.

[0111] Reference Figure 3 and Figure 4 The biopsy forceps 1 includes a push rod 13. The push rod 13 is inserted into the first channel 112. One end of the push rod 13 is fixedly connected to the slider, and the other end of the push rod is located outside the first channel.

[0112] The push rod 13 includes a first end 1311 of the push rod. The push rod 13 includes a second end 1312 of the push rod. The first end and the second end of the push rod are oppositely arranged in the axial direction of the push rod. The first end of the push rod is fixedly connected to the slider. The second end of the push rod is located outside the first channel.

[0113] Reference Figure 9 and Figure 10 The biopsy forceps 1 includes an outer tube 14. The outer tube 14 is sleeved on the push rod. The outer tube is fixedly connected to the handle.

[0114] The outer tube 14 includes a first end 1411 of the outer tube. The outer tube includes a second end 1412 of the outer tube. The first end and the second end of the outer tube are oppositely arranged in the axial direction of the outer tube.

[0115] A second channel 142 is formed in the outer tube 14. The second channel 142 penetrates through the outer tube in the axial direction of the outer tube. The outer tube 14 is sleeved on the push rod through the second channel. The first end of the outer tube is fixedly connected to the handle.

[0116] The biopsy forceps 1 includes a clamp head 15. The clamp head 15 is provided at the second end of the push rod. The clamp head is provided at the second end of the outer tube.

[0117] The clamp head 15 is connected to the outer tube. The clamp head is connected to the push rod. When the slider slides along the sliding hole, the slider drives the clamp head to open or close through the push rod.

[0118] The clamping head 15 includes a first clamping body 151. The clamping head 15 includes a second clamping body 152. The first clamping body is rotatably connected to the outer tube. The second clamping body is rotatably connected to the outer tube. The first clamping body is slidably connected to the push rod. The second clamping body is slidably connected to the push rod.

[0119] When the slider slides along the sliding hole, the slider drives the first clamping body and the second clamping body to rotate relative to the outer tube through the push rod, so that the first clamping body and the second clamping body open or close.

[0120] When the first clamping body and the second clamping body open, the clamping head is in an open state, and the clamping head can clamp human tissues; when the first clamping body and the second clamping body close, the clamping head is in a closed state.

[0121] By providing that the biopsy forceps includes a handle, a slider, a push rod, an outer tube and a clamping head, and the clamping head includes a first clamping body and a second clamping body, when the slider slides along the sliding hole, the slider drives the first clamping body and the second clamping body to rotate relative to the outer tube through the push rod, so that the first clamping body and the second clamping body open or close, enabling the operator to slide the slider to open or close the first clamping body and the second clamping body, enabling the clamping head to grab the lesion tissue, with a simple grabbing action, high grabbing efficiency, convenient operation and low technical requirements for the operator.

[0122] A third channel is formed on the push rod, and the third channel penetrates the push rod in the axial direction of the push rod. One end of the third channel communicates with the first channel, and the other end of the third channel is located at the clamping head.

[0123] It can enable positioning and display structures such as a confocal microscopy probe and an ultrasonic probe to pass through the first channel and the third channel to reach the clamping head, can observe human tissues through the positioning and display structures, can accurately position the lesion area, and can adjust the position and grabbing angle of the clamping head according to the positioning and display results to achieve precise grabbing, with high grabbing efficiency and good grabbing effect.

[0124] In some embodiments, the sliding hole penetrates the handle. Both ends of the sliding hole are located on the side surface of the handle.

[0125] Reference Figure 2 and Figure 3 , the slider 12 includes a first slider 121. The slider 12 includes a second slider 122. The first slider 121 includes a first insertion block 1211. The second slider 122 includes a second insertion block 1221.

[0126] The first insertion block is inserted into the sliding hole from one end of the sliding hole, and the second insertion block is inserted into the sliding hole from the other end of the sliding hole. The first slider is fixedly connected to the second slider.

[0127] Reference Figure 5 and Figure 6, the first slider 121 includes a first slider body 1212. A first receiving groove 12121 is formed on the first slider body 1212. The end of the first receiving groove near the first end of the handle is open. The end of the first receiving groove near the second end of the handle is open.

[0128] The first receiving groove 12121 has a first groove side surface 121211 provided on the side of the first receiving groove. The first insert block is provided on the first groove side surface. The handle is inserted into the first receiving groove.

[0129] The second slider 122 includes a second slider body 1222. A second receiving groove 12221 is formed on the second slider body 1222. The end of the second receiving groove near the first end of the handle is open. The end of the second receiving groove near the second end of the handle is open.

[0130] The second receiving groove 12221 has a second groove side surface 122211 provided on the side of the second receiving groove. The second insert block is provided on the second groove side surface. The handle is inserted into the second receiving groove.

[0131] The setting slider includes a first slider and a second slider. The first slider includes a first receiving groove and a first insert block, and the second slider includes a second receiving groove and a second insert block, which can realize the sliding of the slider and the handle, and can prevent the slider from coming off the handle, with a stable structure.

[0132] In some embodiments, the first insert block 1211 and the second insert block 1221 are oppositely arranged. A first slot 12111 is provided at the side end of the first insert block close to the second insert block. One end of the first slot close to the second end of the handle is open. A second slot 12211 is provided at the side end of the second insert block close to the first insert block. One end of the second slot close to the second end of the handle is open.

[0133] The push rod is arranged in the first slot and the second slot. The first slot and the second slot limit the push rod on the sliding block, and the first slot and the second slot restrict the rotation of the push rod relative to the sliding block.

[0134] When the handle is rotated, the handle drives the push rod to rotate synchronously with the handle through the sliding block. Specifically, when the handle is rotated, the handle drives the push rod to rotate synchronously with the handle through the first slot and the second slot, so that the position of the clamping head can be adjusted by rotating the handle, the grasping positions of the first clamping body and the second clamping body can be changed, and a more suitable grasping position for the lesion area can be found, improving the grasping effect and the effectiveness of the grasped tissue.

[0135] In some embodiments, referring to Figure 8 , the push rod 13 includes a push rod body 132. The push rod body 132 has a certain flexibility and can be bent. The push rod body 132 can be a 304 stainless steel solution-treated pipe, that is, the push rod body 132 can be a 304 solution-treated stainless steel pipe. The push rod body 132 can also be a rod made of other materials.

[0136] The push rod 13 includes a fixed tube 133. The fixed tube is sleeved on the push rod body. The fixed tube is fixedly connected to the push rod body. The fixed tube and the push rod body can be fixedly connected by welding.

[0137] The fixed tube 133 is arranged in the first slot and the second slot. The first slot and the second slot limit the fixed tube on the sliding block, and the first slot and the second slot restrict the fixed tube from rotating relative to the sliding block.

[0138] In some embodiments, the fixed tube 133 has a cross-section of the fixed tube. The cross-section of the fixed tube is perpendicular to the axial direction of the fixed tube. The outer contour of the cross-section of the fixed tube is polygonal. The outer contour of the cross-section of the fixed tube can be other shapes.

[0139] The inner side surface of the first slot has a first contour line, and the first contour line is parallel to the plane where the cross-section of the fixed tube is located or the first contour line is located on the plane where the cross-section of the fixed tube is located. The first contour line can be in a broken line shape. The first contour line can be other shapes.

[0140] The inner side surface of the second slot has a second contour line, and the second contour line is parallel to the plane where the cross-section of the fixed tube is located or the second contour line is located on the plane where the cross-section of the fixed tube is located. The second contour line can be in a broken line shape. The second contour line can be other shapes.

[0141] In some embodiments, referring to Figure 7 and Figure 8 , when the first slider is connected to the second slider, the first slot and the second slot enclose a first connection hole 123. The first connection hole includes a first hole 1231, a second hole 1232, and a third hole 1233 that are sequentially connected. The first hole is located on the side of the second hole away from the second end of the handle.

[0142] The fixed tube is located in the second hole. The end faces at both ends of the second hole limit the fixed tube in the second hole to prevent the push rod from being pulled out of the sliding block.

[0143] The side surface of the second hole restricts the fixed tube from rotating relative to the sliding block, so that the handle drives the fixed tube to rotate synchronously with the handle, and the fixed tube drives the push rod body to rotate synchronously with the handle. The second hole can be a polygonal hole. The second hole can also be a circular hole. The first hole can be a circular hole. The third hole can be a circular hole.

[0144] The fixed tube can be a metal tube. The fixed tube can be a silicone tube. The fixed tube can be a tube made of other materials. The fixed tube and the push rod can be connected by welding.

[0145] In some embodiments, referring to Figure 8, among the first slider and the second slider, on the side end of one of them close to the other, there is a third positioning post 1241, and on the side end of the other close to the one, there is a third positioning hole 1242, and the third positioning post is inserted into the third positioning hole.

[0146] In some embodiments, the first slider and the second slider can be fixedly connected by bonding. The first slider and the second slider can be fixedly connected by screws. The first slider and the second slider can be fixedly connected by welding.

[0147] In some embodiments, referring to Figure 9 and Figure 10 , the outer tube 14 includes a first outer tube 143. The outer tube 14 includes a second outer tube 144. The first outer tube is located at the end of the outer tube. The first outer tube is located at the first end of the outer tube. The first outer tube is fixedly connected to the handle.

[0148] The second outer tube is connected to the first outer tube, and the second outer tube is located on the side of the first outer tube away from the first end of the handle.

[0149] In some embodiments, the handle 11 includes a handle rod 113. A sliding hole is formed on the handle rod. The sliding hole is located on the side surface of the handle rod.

[0150] The handle includes a ferrule 114. The ferrule is fixedly connected to the handle rod. The ferrule is located at the end of the handle rod away from the first end of the handle.

[0151] The first channel includes a first receiving hole 1121. The first receiving hole is formed in the ferrule and / or the handle rod. The first channel includes a second receiving hole 1141. The second receiving hole is formed in the ferrule. The first receiving hole is located on the side of the second receiving hole away from the second end of the handle.

[0152] The second outer tube is inserted into the second receiving hole. The first outer tube is disposed in the first receiving hole. The connection between the ferrule and the handle rod confines the first outer tube in the first receiving hole. The side surface of the first receiving hole restricts the relative rotation of the first outer tube with respect to the first receiving hole.

[0153] In some embodiments, the first outer tube 143 has a first outer tube cross-section. The first outer tube cross-section is perpendicular to the axial direction of the first appearance. The outer contour of the first outer tube cross-section is polygonal. The first receiving hole can be a polygonal hole.

[0154] In some embodiments, referring to Figure 11 and Figure 12 , a first insertion hole 1142 is formed in the ferrule, the handle rod is inserted into the first insertion hole, a protrusion 1143 is provided on the inner wall of the first insertion hole, and a groove 1132 is formed on the outer wall of the handle rod, and the protrusion is snapped into the groove to fixedly connect the ferrule and the handle rod.

[0155] The groove can be an annular groove. The protrusion can be an annular protrusion. The protruding page can have at least one section. The end of the ferrule away from the handle rod can be in the shape of a frustum.

[0156] In some embodiments, the second receiving hole communicates with the first jack. The first jack is located at the end of the ferrule near the first end of the handle. The second receiving hole is located at the end of the ferrule away from the first end of the handle.

[0157] In some embodiments, the first receiving hole is formed in the handle rod. The first receiving hole is located at the end of the handle rod away from the first end of the handle.

[0158] The first channel includes a third receiving hole 1133. The third receiving hole is formed in the handle rod. The third receiving hole is located between the first receiving hole and the sliding hole, and the third receiving hole communicates the first receiving hole and the sliding hole.

[0159] In some embodiments, refer to Figure 12 , the handle includes a wire sleeve 115. The wire sleeve is located at the second end of the handle. The wire sleeve is sleeved on the outer tube, and the wire sleeve is fixedly connected to the ferrule.

[0160] The wire sleeve is sleeved on the second outer tube. The first channel includes a wire sleeve through hole. The wire sleeve through hole 1151 is formed in the wire sleeve. The wire sleeve through hole axially penetrates the wire sleeve. The wire sleeve is sleeved on the second outer tube through the wire sleeve through hole.

[0161] The end of the ferrule away from the first end of the handle is inserted into the wire sleeve through hole. The inner surface of the wire sleeve through hole is provided with internal threads. The outer surface of the ferrule is provided with external threads. The wire sleeve and the ferrule are threadedly connected. The end of the wire sleeve away from the handle rod can be in the shape of a frustum.

[0162] In some embodiments, refer to Figure 13 , Figure 14 and Figure 15 , the handle includes a handheld part 116. The handheld part is located at the first end of the handle. The handheld part is rotatably connected to the handle rod.

[0163] In some embodiments, a second jack 1161 is formed at the end of the handheld part. A first limiting hole 1162 is formed on the handheld part. The first limiting hole is located on the side surface of the handheld part. The first limiting hole is located at the end of the second jack near the first end of the handle. The first limiting hole communicates with the second jack.

[0164] A claw 1134 is provided at the end of the handle rod 113 near the first end of the handle. The claw can include a connecting rod 11341 and a clamping block 11342. The clamping block can be connected to the end of the connecting rod away from the second end of the handle. The clamping block is inserted into the first limiting hole through the second jack. After the clamping block is inserted into the first limiting hole, the inner side surface of the first limiting hole confines the clamping block in the first limiting hole, so that the handle and the handheld part are clamped.

[0165] The extending direction of the first limiting hole is perpendicular to the extending direction of the second jack. The second jack can be arranged along the axial direction of the handle.

[0166] There are at least two claw jaws. The claw jaws on the handle rod are arranged at intervals along the circumferential direction of the outer side surface of the handle rod. Among them, there can be four claw jaws on the handle rod. The outer side surface of the claw jaw can be an arc surface.

[0167] The first limiting hole can be a rectangular hole. The first limiting hole has a first inner side surface 11621 located inside the first limiting hole. The first inner side surface is located on the side of the first limiting hole close to the second jack. After the clamping block is inserted into the first limiting hole, the first inner side surface confines the clamping block in the first limiting hole.

[0168] In some embodiments, a hand hole 1163 is formed on the hand-held part. The hand hole is arranged on the side part of the hand-held part. The hand hole penetrates through the hand-held part.

[0169] The first channel includes a fourth receiving hole 1164. The fourth receiving hole is formed on the hand-held part. The fourth receiving hole can be arranged along the axial direction of the handle. One end of the fourth receiving hole can communicate with the first limiting hole. The other end of the fourth receiving hole can communicate with the hand hole.

[0170] The first channel includes a fifth receiving hole 1165. The fifth receiving hole is arranged at the second end of the handle. The fifth receiving hole is formed on the hand-held part. One end of the fifth receiving hole communicates with the hand hole. The other end of the fifth receiving hole communicates with the outer space of the handle. The fifth receiving hole can be arranged along the axial direction of the handle.

[0171] In some embodiments, the first channel includes a fourth receiving hole 1164. The fourth receiving hole is formed on the hand-held part. The fourth receiving hole can be arranged along the axial direction of the handle. One end of the fourth receiving hole can communicate with the first limiting hole. The other end of the fourth receiving hole can communicate with the outer space of the handle.

[0172] In some embodiments, the first channel includes a sixth receiving hole 1135. One end of the sixth receiving hole 1135 communicates with the sliding hole, and the other end of the sixth receiving hole communicates with the second jack.

[0173] In some embodiments, referring to Figure 4 、 Figure 16 and Figure 17 , the first jaw body includes a first grasping part 1511. The first jaw body includes a first connecting plate 1512. The first connecting plate is connected to the first grasping part. A first sliding groove 15121 is provided on the first connecting plate.

[0174] The second jaw body 152 includes a second grasping portion 1521. The second jaw body includes a second connecting plate 1522. The second connecting plate is connected to the second grasping portion. A second sliding groove 15221 is provided on the second connecting plate. The first connecting plate and the second connecting plate are arranged opposite to each other.

[0175] A first limiting post 1341 is provided on the side of the push rod. A second limiting post 1342 is provided on the side of the push rod. The first limiting post is inserted into the first sliding groove. The second limiting post is inserted into the second sliding groove. The first limiting post and the second limiting post are arranged opposite to each other.

[0176] When the slider slides along the sliding hole, the slider drives the push rod to move. The first limiting post slides in the first sliding groove, and the second limiting post slides in the second sliding groove. The first limiting post drives the first jaw body to rotate relative to the outer tube, and the second limiting post drives the second jaw body to rotate relative to the outer tube, so that the first grasping portion and the second grasping portion open or close, and the sliding can be converted into the rotation of the first jaw body and the second jaw body, which is convenient for the movable jaw head to realize the grasping function.

[0177] When the first jaw body and the second jaw body open and close, the rotation directions of the first jaw body and the second jaw body relative to the outer tube are opposite, which can more efficiently realize the opening and closing of the first jaw body and the second jaw body and improve the grasping efficiency.

[0178] In some embodiments, a first positioning hole 15122 is provided on the first connecting plate. The first positioning hole is located between the first grasping portion and the first sliding groove.

[0179] A second positioning hole 15222 is provided on the second connecting plate. The second positioning hole is located between the second grasping portion and the second sliding groove.

[0180] The first connecting plate is rotatably connected to the outer tube through the first positioning hole. The second connecting plate is rotatably connected to the outer tube through the second positioning hole.

[0181] In some embodiments, the push rod includes a limiting tube 135. The limiting tube is located at the second end of the push rod. The first limiting post and the second limiting post are provided on the side of the limiting tube. The limiting tube is connected to the push rod body.

[0182] In some embodiments, the jaw head includes a first positioning post 153. The first connecting plate and the second connecting plate are located between the first positioning plate and the second positioning plate. The first positioning post is inserted into the first positioning hole and the second positioning hole, and both ends of the first positioning post are rotatably connected to the outer tube.

[0183] The outer tube includes a first positioning plate 1451. The outer tube includes a second positioning plate 1452. Both ends of the first positioning post are respectively rotatably connected to the first positioning plate and the second positioning plate.

[0184] In some embodiments, the first positioning plate and the second positioning plate are connected to one end of the second outer tube away from the first outer tube.

[0185] In some embodiments, the outer tube includes a third outer tube 146. The third outer tube is connected to one end of the second outer tube away from the third outer tube. The first positioning plate and the second positioning plate are connected to one end of the third outer tube away from the second outer tube. The second outer tube can be a stainless steel spring tube.

[0186] In some embodiments, referring to Figure 18 , the first positioning plate and the second positioning plate are part of the second outer tube. Two notches 1453 are provided at the end of the second outer tube to form the first positioning plate and the second positioning plate.

[0187] In some embodiments, the first positioning plate and the second positioning plate are part of the third outer tube. Two notches 1453 are provided at the end of the third outer tube to form the first positioning plate and the second positioning plate.

[0188] In some embodiments, the second end of the push rod can be located between the first connecting plate and the second connecting plate. The second end of the push rod can be located on the side of the first positioning post away from the first grasping portion.

[0189] A first through hole 1531 penetrating through the first positioning post is formed on the first positioning post, so that the probe passing out of the third channel passes through the first through hole and extends between the opened first grasping portion and the second grasping portion, and can enable the probe to extend to the side of the forceps head away from the handle, and can more accurately position the tissue to be grasped, improving the grasping efficiency of the biopsy tissue.

[0190] In some embodiments, the first sliding groove can be an arc-shaped groove or a linear groove. The second sliding groove can be an arc-shaped groove or a linear groove. The first sliding groove can be a circular arc-shaped groove. The second sliding groove can be a circular arc-shaped groove. The first sliding groove can penetrate through the first connecting plate. The second sliding groove can penetrate through the second connecting plate.

[0191] In some embodiments, when the first grasping portion and the second grasping portion are opened to the maximum, the first limiting post can move to one end of the first sliding groove close to the first grasping portion, and the second limiting post can move to one end of the second sliding groove close to the second grasping portion.

[0192] When the first grasping portion and the second grasping portion are combined, the first limiting post can move to one end of the first sliding groove away from the first grasping portion, and the second limiting post can move to one end of the second sliding groove away from the second grasping portion.

[0193] When the first grasping portion and the second grasping portion are combined, there is a gap between the first limiting post and one end of the first sliding groove away from the first grasping portion, and there is a gap between the second limiting post and one end of the second sliding groove away from the second grasping portion, which can make the first grasping portion and the second grasping portion combine more tightly and can prevent the grasped tissue from slipping out between the first grasping portion and the second grasping portion.

[0194] In some embodiments, a first grasping groove 15111 is formed on the first grasping part. A second grasping groove 15211 is formed on the second grasping part. When the first grasping part and the second grasping part are combined, the first grasping groove and the second grasping groove can form a grasping cavity.

[0195] In some embodiments, an endoscope is provided. The endoscope itself can transmit image data. The endoscope also has high-definition imaging capabilities and can clearly present the internal environment of the body for observation.

[0196] An endoscope channel 21 for the forceps head to pass through is formed inside the endoscope. By providing the endoscope channel, the forceps head can enter the human body. The forceps head is provided with a first forceps head and a second forceps head that can open and close, so as to grasp tissues with the forceps head.

[0197] In some embodiments, the endoscope includes a positioning sheath 22. Part of the endoscope channel can be formed inside the positioning sheath.

[0198] In some embodiments, referring to Figure 19 and Figure 21 , an endoscope system is provided. The endoscope system includes the endoscope in the above embodiments. The endoscope can serve as a basic platform for the endoscope system. The endoscope system includes the biopsy forceps in the above embodiments.

[0199] The endoscope system includes a confocal microscopy probe 31. The confocal microscopy probe is a high-precision micro-imaging device.

[0200] The confocal microscopy probe enters the biopsy forceps through the first channel, passes through the push rod through the third channel, and reaches the forceps head. The confocal microscopy probe can provide high-resolution microscopic imaging, enabling the operator to observe the details of the lesion at the microscopic level, accurately locate the lesion area, and enable the biopsy forceps to grasp efficiently.

[0201] During the operation of the endoscope system, the endoscope can be first inserted into the human body, and the internal environment of the body can be observed through the imaging system of the endoscope to locate the lesion area. The biopsy forceps are sent to the lesion area through the endoscope channel, and the forceps head can extend out of the endoscope channel. The confocal microscopy probe can extend out of the third channel of the biopsy forceps, open the forceps head, and the confocal microscopy probe can pass through the forceps head and extend to the lesion. The confocal microscopy probe can be used to observe the position of the lesion and the surrounding tissue structure at the microscopic level. According to the microscopic imaging results, the grasping position of the forceps head can be accurately adjusted to ensure effective grasping. The biopsy forceps and the grasped tissue can be withdrawn from the human body together through the endoscope channel.

[0202] By setting up the cooperation of an endoscope, a confocal microscopy probe and a biopsy forceps, precise positioning of the lesion area can be achieved through high-precision microscopic imaging technology. Through the flexible operation of the biopsy forceps, the accuracy and efficiency of sample capture can be realized, the damage to the surrounding tissues of the human body can be reduced, and the safety can be improved.

[0203] In some embodiments, referring to Figure 20 and Figure 21 , a biopsy imaging system is proposed. The biopsy imaging system includes the endoscope in the above embodiments. The endoscope can serve as the basic platform of the biopsy imaging system. The biopsy imaging system includes the biopsy forceps in the above embodiments.

[0204] The biopsy imaging system includes an ultrasonic probe 32. The ultrasonic probe enters the biopsy forceps through the first channel, passes through the push rod through the third channel, and reaches the forceps tip. The ultrasonic probe is responsible for locating the target tissue and providing real-time ultrasonic imaging, enabling the operator to determine the position of the target tissue, guiding the operation of the biopsy forceps, and enabling the biopsy forceps to capture efficiently.

[0205] During the operation of the biopsy imaging system, the endoscope can be first inserted into the human body, and the internal environment can be observed through the imaging system of the endoscope to locate the lesion area. The biopsy forceps are sent to the lesion area through the endoscope channel, and the forceps tip can extend out of the endoscope channel. The ultrasonic probe can extend out of the third channel of the biopsy forceps, open the forceps tip, and the ultrasonic probe can pass through the forceps tip and extend to the lesion. Real-time imaging can be carried out using the ultrasonic probe to enable the operator to determine the position of the target tissue. According to the imaging results, the grasping position of the forceps tip can be accurately adjusted to ensure effective capture. The biopsy forceps and the captured tissue can be withdrawn from the human body together through the endoscope channel.

[0206] By setting up the cooperation of an endoscope, an ultrasonic probe and a biopsy forceps, precise positioning of the lesion area can be achieved through ultrasonic imaging technology. Through the flexible operation of the biopsy forceps, the accuracy and efficiency of sample capture can be realized, the damage to the surrounding tissues of the human body can be reduced, and the safety can be improved.

[0207] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the specification of the present application, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0208] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A biopsy forceps, characterized in that: include: A handle, wherein a first channel is formed in the handle, and the first channel penetrates the handle in the axial direction of the handle; a sliding hole is formed on the handle, and the sliding hole is located at the side of the handle; the sliding hole is communicated with the first channel; A slider, inserted into the sliding hole, the slider being slidably connected to the handle; A push rod, inserted in the first channel, one end of the push rod is fixedly connected to the slider, and the other end of the push rod is located outside the first channel; An outer tube is sleeved on the push rod; the outer tube is fixedly connected to the handle; The clamp head comprises a first clamp body and a second clamp body; the first clamp body and the second clamp body are rotatably connected to the outer tube; the first clamp body and the second clamp body are slidably connected to the push rod; When the slider slides along the sliding hole, the slider drives the first jaw body and the second jaw body to rotate relative to the outer tube through the push rod, so that the first jaw body and the second jaw body are opened or merged; A third channel is formed on the push rod, and the third channel penetrates the push rod in the axial direction of the push rod; one end of the third channel is communicated with the first channel, and the other end of the third channel is located at the pliers head.

2. The biopsy forceps according to claim 1, characterized in that: The sliding hole passes through the handle, and both ends of the sliding hole are located on the side surface of the handle; The slider includes a first slider and a second slider; the first slider includes a first plug-in block; the second slider includes a second plug-in block; The first insert block is inserted into the sliding hole from one end of the sliding hole, and the second insert block is inserted into the sliding hole from the other end of the sliding hole; the first sliding block is fixedly connected to the second sliding block.

3. The biopsy forceps according to claim 2, characterized in that: The first slider comprises a first slider body; a first receiving groove is formed on the first slider body; The first receiving groove has a first groove side surface arranged at a side portion of the first receiving groove; the first inserting block is arranged on the first groove side surface; The second slider includes a second slider body; a second accommodating groove is formed on the second slider body; The second receiving groove has a second groove side surface arranged at a side portion of the second receiving groove; the second insert block is arranged on the second groove side surface; The handle is inserted into the first accommodating groove and the second accommodating groove.

4. The biopsy forceps according to claim 2, characterized in that: The first plug-in block is arranged opposite to the second plug-in block; a first slot is provided at a side end of the first plug-in block close to the second plug-in block; a second slot is provided at a side end of the second plug-in block close to the first plug-in block; The push rod is arranged in the first slot and the second slot; the first slot and the second slot limit the push rod on the sliding block, and the first slot and the second slot limit the push rod from rotating relative to the sliding block.

5. The biopsy forceps according to claim 4, characterized in that: The push rod comprises a push rod body and a fixing tube; The fixed tube is sleeved on the push rod body; the fixed tube is fixedly connected to the push rod body; the fixed tube is arranged in the first slot and the second slot.

6. The biopsy forceps according to any one of claims 1 to 5, characterized in that: The first clamp body comprises a first grasping portion and a first connecting plate, wherein the first connecting plate is connected to the first grasping portion; a first sliding groove is provided on the first connecting plate; The second clamp body comprises a second grabbing portion and a second connecting plate, wherein the second connecting plate is connected to the second grabbing portion; and a second sliding groove is provided on the second connecting plate; A first limiting column and a second limiting column are provided on the side of the push rod, the first limiting column is inserted into the first sliding groove, and the second limiting column is inserted into the second sliding groove; When the slider slides along the sliding hole, the slider drives the push rod to move, the first limiting column slides in the first sliding groove, the second limiting column slides in the second sliding groove, the first limiting column drives the first clamp body to rotate relative to the outer tube, and the second limiting column drives the second clamp body to rotate relative to the outer tube, so that the first grasping part and the second grasping part are opened or merged.

7. The biopsy forceps according to claim 6, characterized in that: A first positioning hole is provided on the first connecting plate, and the first positioning hole is located between the first grabbing portion and the first sliding groove; A second positioning hole is provided on the second connecting plate, and the second positioning hole is located between the second grabbing portion and the second sliding groove; The first connecting plate is rotatably connected to the outer tube through the first positioning hole, and the second positioning plate is rotatably connected to the outer tube through the second positioning hole.

8. The biopsy forceps according to claim 7, characterized in that: The clamp head includes a first positioning column, the first positioning column is inserted into the first positioning hole and the second positioning hole, and both ends of the first positioning column are rotatably connected to the outer tube; The second end of the push rod is located between the first connecting plate and the second connecting plate; the second end of the push rod is located on a side of the first positioning column away from the first grabbing portion; A first through hole penetrating through the first positioning post is formed on the first positioning post.

9. The biopsy forceps according to any one of claims 1 to 5, characterized in that: The handle comprises a first handle end and a second handle end which are arranged opposite to each other in the axial direction of the handle; The outer tube includes a first outer tube and a second outer tube; the first outer tube is located at the end of the outer tube, and the first outer tube is fixedly connected to the handle; The second outer tube is connected to the first outer tube, and the second outer tube is located on a side of the first outer tube away from the first end of the handle.

10. The biopsy forceps according to claim 9, characterized in that: The handle comprises a handle rod and a ferrule, wherein the ferrule is fixedly connected to the handle rod; the ferrule is located at an end of the handle rod away from the first end of the handle; The first channel comprises a first receiving hole; the first receiving hole is formed in the handle rod and / or the ferrule; a second receiving hole is formed in the ferrule; the first receiving hole is located on a side of the second receiving hole away from the second end of the handle; The second outer tube is inserted into the second accommodating hole; the ferrule is connected to the handle bar to confine the first outer tube in the first accommodating hole; the side surface of the first accommodating hole limits the first outer tube from rotating relative to the first accommodating hole.

11. The biopsy forceps according to claim 10, characterized in that: A first insertion hole is formed in the ferrule, the handle rod is inserted in the first insertion hole, a protrusion is provided on the inner wall of the first insertion hole, a groove is formed on the outer wall of the handle rod, and the protrusion is inserted into the groove to fix the ferrule and the handle rod in connection.

12. The biopsy forceps according to claim 10, characterized in that: The handle comprises a wire sleeve, the wire sleeve is located at the second end of the handle, the wire sleeve is sleeved on the outer tube, and the wire sleeve is fixedly connected to the clamping sleeve.

13. The biopsy forceps according to any one of claims 1 to 5, characterized in that: The handle comprises a first handle end and a second handle end which are arranged opposite to each other in the axial direction of the handle; the handle comprises a handle rod and a hand-holding part; the hand-holding part is located at the first handle end, and the hand-holding part is rotatably connected to the handle rod.

14. The biopsy forceps according to claim 13, characterized in that: A second plug hole is formed at the end of the handheld portion, and a first limiting hole is formed on the handheld portion; The first limiting hole is located on the side surface of the hand-held portion; the first limiting hole is located at the end of the second plug hole close to the first end of the handle; the first limiting hole is connected to the second plug hole; The end of the handle rod close to the first end of the handle is provided with a claw; the claw includes a connecting rod and a clamping block; the clamping block is connected to the end of the connecting rod away from the second end of the handle; the clamping block is inserted into the first limiting hole through the second insertion hole; After the clamping block is inserted into the first limiting hole, the inner side surface of the first limiting hole limits the clamping block in the first limiting hole.

15. An endoscope system, characterized in that: The biopsy device comprises an endoscope, a confocal microscopy probe and any one of claims 1 to 14; An endoscope channel is formed in the endoscope for the forceps head to pass through; The confocal microscopy probe enters the biopsy forceps through the first channel, and the confocal microscopy probe passes through the push rod through the third channel.

16. A biopsy imaging system, characterized in that: A biopsy forceps comprising an endoscope, an ultrasonic probe and any one of claims 1 to 14; An endoscope channel is formed in the endoscope for the forceps head to pass through; The ultrasonic probe enters the biopsy forceps through the first channel, and the ultrasonic probe passes through the push rod through the third channel.

Images