Bronchoscope biopsy forceps

Abstract

The invention discloses bronchoscope biopsy forceps, and relates to the technical field of medical instruments, the bronchoscope biopsy forceps comprise a holding rod, a hose, a U-shaped mounting frame, a connecting shaft, a circular ring, a connecting plate, a sampling spoon, a shearing rod, an arc plate, a first spring, an assembling groove, a sliding block and two connecting ropes, a driving mechanism is mounted in the assembling groove, and the driving mechanism comprises a rotating pipe, a driving rod and a push plate; a plurality of spiral blocks are fixedly connected to the side wall of the driving rod, a plurality of spiral grooves are formed in the inner wall of the rotating pipe, and a first reset assembly is installed in the assembling groove. A rack is fixedly connected to the bottom of the sliding block, a gear is fixedly connected to the side wall of the rotating pipe, and the gear is meshed with the rack; a connecting pipe is installed on the outer side wall of the assembling groove, a limiting plate is slidably connected into the connecting pipe, a limiting groove is formed in the side wall of the driving rod, a first inclined face is arranged at one end of the limiting plate and inserted into the limiting groove, a second reset assembly is installed in the connecting pipe, and a pulling assembly is installed on the outer side wall of the holding rod. According to the sliding block locking device, the sliding block can be automatically locked conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a bronchoscope biopsy forceps. Background Art

[0002] At present, biopsy technology is a method of obtaining tissue samples directly from the lesion site for pathological analysis, which is of irreplaceable importance for accurate diagnosis. With the rapid development of medical technology, traditional biopsy technology has undergone tremendous changes, from early open surgical biopsy to today's percutaneous lung biopsy, endoscopic lung biopsy, and even minimally invasive biopsy using the latest image-guided technology. Each step of technological advancement aims to reduce patient trauma, shorten recovery time and improve diagnostic accuracy.

[0003] Related technologies can refer to the Chinese utility model patent with authorization announcement number CN221511985U, which discloses a bronchoscope biopsy forceps, including a gripping rod, a hose is provided in the center of the upper end of the gripping rod, a U-shaped mounting frame is provided on the upper end of the hose, a connecting shaft is fixedly installed on the upper side of the U-shaped mounting frame, and the connecting shaft is rotatably equipped with two circular rings on one side of the circumference, and connecting plates are fixedly installed on the upper sides of the two circular rings, and the upper ends of the two connecting plates extend out of the U-shaped mounting frame and sampling spoons are fixedly installed on the end faces. The two sampling spoons are brought close to each other to achieve sampling of the patient, and the two sampling spoons are symmetrically arranged on the left and right, and the lower sides of the two circular rings are fixedly installed with scissors. Cutting rod, arc plates are fixedly installed at the lower ends of the two shear rods, and a first spring is fixedly installed on the side where the two arc plates are close to each other. The extension of the first spring can drive the two sampling spoons to move away from each other; an assembly groove is provided on the front side of the holding rod, and a sliding groove is provided on the inner wall of the rear side of the assembly groove. A slider is slidably installed inside the sliding groove, and a locking assembly is provided between the slider and the assembly groove. Connecting ropes are fixedly installed on the lower sides of the two arc plates, and the other ends of the two connecting ropes pass through the inside of the hose and extend into the assembly groove and are fixedly connected to the upper side of the slider. When in use, the slider can be slid up and down to drive the two sampling spoons to close together for sampling by the two connecting ropes. The operation is simple and convenient.

[0004] However, the above-mentioned biopsy forceps are inconvenient to automatically lock the slider, which brings certain inconvenience to the operation of the biopsy forceps. Summary of the invention

[0005] The present application provides a bronchoscope biopsy forceps, which is convenient for automatically locking a slider, and adopts the following technical solution: A bronchoscope biopsy forceps, comprising a gripping rod, a hose, a U-shaped mounting frame, a connecting shaft, a circular ring, a connecting plate, a sampling spoon, a shearing rod, an arc plate, a first spring, an assembly groove, a slider and two connecting ropes, wherein a driving mechanism for driving the slider to move is installed in the assembly groove, and the driving mechanism comprises a rotating tube rotatably connected to the side wall of the assembly groove, a driving rod arranged in the rotating tube and a pushing plate installed at one end of the driving rod; a through hole for the driving rod to pass through is provided on the side wall of the assembly groove, a plurality of spiral blocks are fixedly connected to the side wall of the driving rod, a plurality of spiral grooves are provided on the inner wall of the rotating tube, and the spiral blocks are connected to the spiral The grooves match one by one, and a first reset component for resetting the driving rod is installed in the assembly groove; a rack is fixedly connected to the bottom of the sliding block, and a gear is fixedly connected to the side wall of the rotating tube, and the gear is meshed with the rack; a connecting tube is installed on the outer wall of the assembly groove, and the inner wall of the connecting tube is slidably connected to a limiting plate, a limiting groove is provided on the side wall of the driving rod, and a first inclined surface is provided at one end of the limiting plate close to the driving rod and is inserted into the limiting groove, a second reset component for resetting the limiting plate is installed on the inner wall of the connecting tube, and a pulling component for separating the limiting plate from the limiting groove is installed on the outer wall of the holding rod.

[0006] By adopting the above scheme, when it is necessary to drive the slider to move, the driving rod is first driven to move by the push plate, and then the driving rod drives the rotating tube to rotate under the action of the spiral block and the spiral groove, the rotating tube rotation drives the gear to rotate, the gear rotation drives the rack to move, and the rack movement can drive the slider to move; in addition, when the driving rod drives the rotating tube to rotate, the driving rod will move outside the perforation, and when the driving rod moves to align the limit plate with the limit groove, the limit plate is inserted into the limit groove under the action of the second reset component, so that the driving rod can be automatically locked, and then the slider can be automatically locked; in summary, the set driving mechanism is convenient for automatically locking the slider.

[0007] Preferably, the first reset assembly includes a first reset spring fixed to the inner wall of the assembly groove and a first reset block fixed to one end of the first reset spring; the first reset block is fixed to the side wall of the driving rod.

[0008] By adopting the above scheme, the driving rod moves outward from the perforation, driving the first reset block to move, and the movement of the first reset block presses the first reset spring; when no pressure is applied to the push plate, the first reset block drives the driving rod to reset under the action of the first reset spring; in summary, the first reset assembly is set to facilitate the resetting of the driving rod.

[0009] Preferably, the second reset assembly includes a connecting groove opened on the inner wall of the connecting tube, a second reset block slidably connected to the connecting groove, and a second reset spring fixedly connected to one side of the second reset block; one end of the second reset spring away from the second reset block is fixedly connected to the inner wall of one end of the connecting groove; when the limit plate is separated from the limit groove, the second reset spring is in a compressed state.

[0010] By adopting the above scheme, when the limit plate is separated from the limit slot under the action of the pulling component, the limit plate drives the second reset block to move downward, and the second reset block moves downward to press the second reset spring; when the limit plate is aligned with the limit slot, the second reset block can drive the limit plate to be plugged into the limit slot under the action of the second reset spring; in summary, the second reset component is set to facilitate the resetting of the limit plate.

[0011] Preferably, the pulling assembly includes a movable tube slidably connected to the outer wall of the holding rod and a connecting rod fixedly connected to one end of the movable tube near the limiting plate; the outer wall of the movable tube is provided with anti-slip grooves, and one end of the connecting rod away from the movable tube is fixedly connected to one end of the limiting plate away from the driving rod.

[0012] By adopting the above scheme, when it is necessary to separate the limit plate from the limit slot, the movable tube is driven to move first, and the movement of the movable tube drives the connecting rod to move, and the movement of the connecting rod can separate the limit plate from the limit slot; in summary, the setting of the pulling assembly facilitates the separation of the limit plate from the limit slot.

[0013] Preferably, an observation hole is provided on the side wall of the assembly groove, a transparent plate is installed in the observation hole, and a cleaning mechanism for cleaning the inner side of the transparent plate is installed on the inner wall of the assembly groove.

[0014] By adopting the above scheme, the observation hole and the transparent plate are provided, which facilitates observation of the interior of the assembly groove; and the cleaning mechanism is provided, which facilitates cleaning of the transparent plate.

[0015] Preferably, the cleaning mechanism includes a fixed plate fixed to the inner wall of the assembly groove, a guide rod slidably connected to the fixed plate, a cleaning brush fixed to the top of the guide rod, and a baffle fixed to the bottom of the guide rod; a second spring is fixed to the top of the baffle, and one end of the second spring away from the baffle is fixed to the bottom of the fixed plate; a push rod is fixed to the top of the sliding block, and the push rod abuts against the top of the cleaning brush.

[0016] By adopting the above solution, when the slider moves, the slider drives the push rod to move, and the push rod movement drives the cleaning brush to move, and the cleaning brush can move to clean the transparent plate; in summary, the cleaning mechanism is set up to facilitate the cleaning of the transparent plate.

[0017] Preferably, a collecting cylinder is installed at the bottom of the holding rod, a ring groove is opened on the top of the collecting cylinder, a ring plate is fixedly connected to the bottom of the holding rod, the ring plate is inserted into the ring groove, and a plurality of fixing mechanisms for fixing the ring plate are installed in the ring groove.

[0018] By adopting the above scheme, the provided collecting tube is convenient for collecting dust or some outflowing tissue fluid; the provided fixing mechanism is convenient for disassembly and assembly of the collecting tube, thereby facilitating the cleaning of the collecting tube.

[0019] Preferably, each group of the fixing mechanisms comprises a through hole provided on one side of the annular groove and an insert block slidably connected to the through hole; a groove is provided on the side wall of the annular plate, a second inclined surface is provided at one end of the insert block close to the groove and is inserted into the groove, a sliding groove is provided at the bottom of the through hole, a third reset block is slidably connected in the sliding groove, the third reset block is fixedly connected to the bottom of the insert block, a third reset spring is fixedly connected to one side of the third reset block, an end of the third reset spring away from the third reset block is fixedly connected to an inner wall of one end of the sliding groove, and a pushing member for separating the insert block from the groove is installed at one end of the movable tube close to the collecting tube.

[0020] By adopting the above scheme, when the collecting barrel needs to be installed, the collecting barrel is first moved to make the annular plate plug into the annular groove. At this time, the annular plate drives the plug block to move out of the through hole under the action of the second inclined surface, and the movement of the plug block drives the third reset block to move, and the movement of the third reset block presses the third reset spring; when the annular plate is plugged into the annular groove, the third reset block drives the plug block to be plugged into the groove under the action of the third reset spring, so that the collecting barrel can be installed; when the collecting barrel needs to be disassembled, the plug block is first separated from the groove by the pushing member, and then the collecting barrel can be removed; in summary, the set fixing mechanism is convenient for disassembling the collecting barrel.

[0021] Preferably, the pushing member includes a push ring fixedly connected to one end of the moving tube close to the collecting cylinder, a connecting block is fixedly connected to the top of the insert block, a third inclined surface is provided at one end of the connecting block close to the push ring, and the third inclined surface matches the side wall of the push ring.

[0022] By adopting the above scheme, when it is necessary to separate the plug block from the groove, the push ring is first driven to move by the movable tube, and then the push ring drives the connecting block to move in the direction away from the groove under the action of the third inclined surface. The movement of the connecting block in the direction away from the groove drives the plug block to move in the direction away from the groove, and the plug block can be separated from the groove by moving in the direction away from the groove. In summary, the push member provided facilitates the separation of the plug block from the groove.

[0023] In summary, this application has the following beneficial effects: 1. When the slider needs to be driven to move, the push plate is used to drive the driving rod to move first, and then the driving rod drives the rotating tube to rotate under the action of the spiral block and the spiral groove, the rotating tube rotates to drive the gear to rotate, the gear rotates to drive the rack to move, and the rack movement can drive the slider to move; in addition, when the driving rod drives the rotating tube to rotate, the driving rod will move out of the perforation, and when the driving rod moves to align the limit plate with the limit groove, the limit plate is plugged into the limit groove under the action of the second reset component, so that the driving rod can be automatically locked, and then the slider can be automatically locked; in summary, the set driving mechanism is convenient for automatically locking the slider; 2. When the slider moves, the slider drives the push rod to move, and the push rod drives the cleaning brush to move, and the cleaning brush moves to clean the transparent plate; in summary, the cleaning mechanism is set to facilitate the cleaning of the transparent plate; 3. The set collection tube is convenient for collecting dust or some outflowing tissue fluid; the set fixing mechanism is convenient for disassembly and assembly of the collection tube, so as to facilitate cleaning of the collection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a structural schematic diagram highlighting the driving mechanism in the embodiment of the present application; Figure 3 This is a structural schematic diagram highlighting the connection between the rotating tube and the driving rod in the embodiment of the present application; Figure 4 This is a structural schematic diagram highlighting the first reset component and the second reset component in the embodiment of the present application; Figure 5 This is a structural schematic diagram highlighting the cleaning mechanism in the embodiment of the present application; Figure 6 This is a structural schematic diagram highlighting the fixing mechanism in the embodiment of the present application.

[0025] Description of reference numerals: 1. holding rod; 11. hose; 12. U-shaped mounting frame; 13. connecting shaft; 14. circular ring; 15. connecting plate; 151. sampling spoon; 16. shear rod; 161. arc plate; 17. first spring; 18. assembly groove; 181. slider; 182. guide rod; 183. observation hole; 184. transparent plate; 19. connecting rope; 2. driving mechanism; 21. rotating tube; 211. spiral groove; 22. driving rod; 221. spiral block; 222. limiting groove; 23. push plate; 24. perforation; 25. rack; 26. gear; 27. connecting tube; 28. limiting plate; 281. first inclined plane; 3. first reset assembly; 31 , first return spring; 32, first return block; 4, second return assembly; 41, connecting groove; 42, second return block; 43, second return spring; 5, pulling assembly; 51, moving tube; 52, connecting rod; 6, cleaning mechanism; 61, fixing plate; 62, guide rod; 63, cleaning brush; 64, baffle; 65, second spring; 66, push rod; 7, collecting cylinder; 71, annular groove; 72, annular plate; 8, fixing mechanism; 81, through hole; 811, slide groove; 82, plug block; 821, second inclined surface; 83, groove; 84, third return block; 85, third return spring; 9, pushing member; 91, push ring; 92, connecting block; 921, third inclined surface. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-6 This application is described in further detail.

[0027] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] The present application discloses a bronchoscopic biopsy forceps, such as Figure 1 and Figure 2 As shown, it includes a holding rod 1, a hose 11, a U-shaped mounting frame 12, a connecting shaft 13, a ring 14, a connecting plate 15, a sampling spoon 151, a shear rod 16, an arc plate 161, a first spring 17, an assembly groove 18, a slider 181 and two connecting ropes 19. A guide rod 182 is installed in the assembly groove 18. The guide rod 182 passes through the slider 181. The slider 181 is slidably connected to the guide rod 182. A driving mechanism 2 for driving the slider 181 to move is installed in the assembly groove 18.

[0029] like Figure 2 and Figure 3As shown, the driving mechanism 2 includes a rotating tube 21 rotatably connected to the side wall of the assembly groove 18 through a bearing, a driving rod 22 arranged in the rotating tube 21, and a push plate 23 installed at one end of the driving rod 22; the side wall of the assembly groove 18 is provided with a through hole 24 for the driving rod 22 to pass through, the side wall of the driving rod 22 is fixedly connected with a plurality of spiral blocks 221, the inner wall of the rotating tube 21 is provided with a plurality of spiral grooves 211, the spiral blocks 221 are matched with the spiral grooves 211 in a one-to-one correspondence, and a first reset component 3 for resetting the driving rod 22 is installed in the assembly groove 18; the bottom of the slider 181 is fixedly connected with a rack 25, and the rotating tube 21 is provided with a plurality of spiral grooves 211, and the spiral blocks 221 are matched with the spiral grooves 211 in a one-to-one manner. A gear 26 is fixedly connected to the side wall of 21, and the gear 26 is meshed with the rack 25; a connecting tube 27 is installed on the outer wall of the assembly groove 18, and the inner wall of the connecting tube 27 is slidably connected to the limiting plate 28, and a limiting groove 222 is provided on the side wall of the driving rod 22, and a first inclined surface 281 is provided at one end of the limiting plate 28 close to the driving rod 22 and is inserted into the limiting groove 222, and the first inclined surface 281 matches the side wall of the driving rod 22, and a second resetting component 4 for resetting the limiting plate 28 is installed on the inner wall of the connecting tube 27, and a pulling component 5 for separating the limiting plate 28 from the limiting groove 222 is installed on the outer wall of the holding rod 1. When it is necessary to drive the slider 181 to move, the driving rod 22 is first driven to move by the push plate 23, and then the driving rod 22 drives the rotating tube 21 to rotate under the action of the spiral block 221 and the spiral groove 211, and the rotating tube 21 rotates to drive the gear 26 to rotate, and the gear 26 rotates to drive the rack 25 to move, and the movement of the rack 25 can drive the slider 181 to move; in addition, when the driving rod 22 drives the rotating tube 21 to rotate, the driving rod 22 will move out of the through hole 24, and when the driving rod 22 moves to make the limit plate 28 align with the limit groove 222, the limit plate 28 is inserted into the limit groove 222 under the action of the second reset component 4, so that the driving rod 22 can be automatically locked, and then the slider 181 can be automatically locked; in summary, the set driving mechanism 2 is convenient for automatically locking the slider 181.

[0030] like Figure 2 and Figure 4 As shown, the first reset assembly 3 includes a first reset spring 31 fixed to the inner wall of the assembly groove 18 and a first reset block 32 fixed to one end of the first reset spring 31; the first reset block 32 is fixed to the side wall of the driving rod 22. The driving rod 22 moves outward from the through hole 24 to drive the first reset block 32 to move, and the first reset block 32 moves to press the first reset spring 31; when no pressure is applied to the push plate 23, the first reset block 32 drives the driving rod 22 to reset under the action of the first reset spring 31; in summary, the first reset assembly 3 is provided to facilitate the reset of the driving rod 22.

[0031] like Figure 2 and Figure 4As shown, the second reset assembly 4 includes a connection groove 41 provided on the inner wall of the connection tube 27, a second reset block 42 connected to the connection groove 41 by sliding along the axial direction of the connection tube 27, and a second reset spring 43 fixed to one side of the second reset block 42; one end of the second reset spring 43 away from the second reset block 42 is fixed to the inner wall of one end of the connection groove 41; when the limit plate 28 is separated from the limit groove 222, the second reset spring 43 is in a compressed state. When the limit plate 28 is separated from the limit groove 222 under the action of the pulling assembly 5, the limit plate 28 drives the second reset block 42 to move downward, and the second reset block 42 moves downward to press the second reset spring 43; when the limit plate 28 is aligned with the limit groove 222, the second reset block 42 can drive the limit plate 28 to plug into the limit groove 222 under the action of the second reset spring 43; in summary, the second reset assembly 4 is provided to facilitate the reset of the limit plate 28.

[0032] like Figure 2 As shown, the pulling assembly 5 includes a moving tube 51 that is slidably connected to the outer wall of the gripping rod 1 along the length direction of the gripping rod 1 and a connecting rod 52 that is fixed to one end of the moving tube 51 near the limiting plate 28; the outer wall of the moving tube 51 is provided with anti-slip grooves, and one end of the connecting rod 52 away from the moving tube 51 is fixed to one end of the limiting plate 28 away from the driving rod 22. When it is necessary to separate the limiting plate 28 from the limiting groove 222, the moving tube 51 is first driven to move, and the movement of the moving tube 51 drives the connecting rod 52 to move, and the movement of the connecting rod 52 can separate the limiting plate 28 from the limiting groove 222; in summary, the setting of the pulling assembly 5 facilitates the separation of the limiting plate 28 from the limiting groove 222.

[0033] like Figure 2 and Figure 5 As shown, the side wall of the assembly groove 18 is provided with an observation hole 183, a transparent plate 184 is installed in the observation hole 183, and the inner wall of the assembly groove 18 is provided with a cleaning mechanism 6 for cleaning the inner side of the transparent plate 184. The observation hole 183 and the transparent plate 184 are provided to facilitate observation of the interior of the assembly groove 18; the cleaning mechanism 6 is provided to facilitate cleaning of the transparent plate 184.

[0034] like Figure 2 and Figure 5As shown, the cleaning mechanism 6 includes a fixed plate 61 fixed to the inner wall of the assembly groove 18, a guide rod 62 slidably connected to the fixed plate 61 along the length direction of the gripping rod 1, a cleaning brush 63 fixed to the top of the guide rod 62, and a baffle 64 fixed to the bottom of the guide rod 62; the guide rod 62 is arranged to penetrate the fixed plate 61, a second spring 65 is fixed to the top of the baffle 64, and one end of the second spring 65 away from the baffle 64 is fixed to the bottom of the fixed plate 61; a push rod 66 is fixed to the top of the slider 181, and the push rod 66 abuts against the top of the cleaning brush 63. When the slider 181 moves, the slider 181 drives the push rod 66 to move, and the push rod 66 moves to drive the cleaning brush 63 to move, and the cleaning brush 63 moves to clean the transparent plate 184; in summary, the cleaning mechanism 6 is provided to facilitate the cleaning of the transparent plate 184.

[0035] like Figure 2 and Figure 6 As shown, a collecting tube 7 is installed at the bottom of the gripping rod 1, an annular groove 71 is provided at the top of the collecting tube 7, an annular plate 72 is fixedly connected to the bottom of the gripping rod 1, the annular plate 72 is plugged into the annular groove 71, and a plurality of fixing mechanisms 8 for fixing the annular plate 72 are installed in the annular groove 71. The provided collecting tube 7 is convenient for collecting dust or some outflowing tissue fluid; the provided fixing mechanism 8 is convenient for disassembling and assembling the collecting tube 7, so as to facilitate cleaning of the collecting tube 7.

[0036] like Figure 2 and Figure 6As shown, each set of fixing mechanisms 8 includes a through hole 81 opened on one side of the annular groove 71 and an insert block 82 slidably connected to the through hole 81; a groove 83 is opened on the side wall of the annular plate 72, and a second inclined surface 821 is provided at one end of the insert block 82 close to the groove 83 and inserted into the groove 83; a slide groove 811 is opened at the bottom of the through hole 81, and a third reset block 84 is slidably connected in the slide groove 811, and the third reset block 84 is fixedly connected to the bottom of the insert block 82, and a third reset spring 85 is fixedly connected to one side of the third reset block 84, and one end of the third reset spring 85 away from the third reset block 84 is fixedly connected to the inner wall of one end of the slide groove 811, and a pushing member 9 for separating the insert block 82 from the groove 83 is installed at one end of the moving tube 51 close to the collecting tube 7. When it is necessary to install the collecting barrel 7, the collecting barrel 7 is first moved to make the annular plate 72 plugged into the annular groove 71. At this time, the annular plate 72 drives the plug block 82 to move out of the through hole 81 under the action of the second inclined surface 821, and the movement of the plug block 82 drives the third reset block 84 to move, and the third reset block 84 moves to press the third reset spring 85; when the annular plate 72 is plugged into the annular groove 71, the third reset block 84 drives the plug block 82 to be plugged into the groove 83 under the action of the third reset spring 85, so that the collecting barrel 7 can be installed; when it is necessary to disassemble the collecting barrel 7, first separate the plug block 82 from the groove 83 through the pushing member 9, and then remove the collecting barrel 7; in summary, the set fixing mechanism 8 is convenient for disassembling the collecting barrel 7.

[0037] like Figure 2 and Figure 6 As shown, the pusher 9 includes a push ring 91 fixedly connected to one end of the moving tube 51 close to the collecting barrel 7, a connecting block 92 is fixedly connected to the top of the plug block 82, and a third inclined surface 921 is provided at one end of the connecting block 92 close to the push ring 91, and the third inclined surface 921 matches the side wall of the push ring 91. When the plug block 82 needs to be separated from the groove 83, the push ring 91 is first driven to move by the moving tube 51, and then the push ring 91 drives the connecting block 92 to move away from the groove 83 under the action of the third inclined surface 921. The movement of the connecting block 92 away from the groove 83 drives the plug block 82 to move away from the groove 83, and the plug block 82 moves away from the groove 83 to separate from the groove 83; in summary, the pusher 9 is provided to facilitate the separation of the plug block 82 from the groove 83.

[0038] Working principle: when it is necessary to drive the slider 181 to move, the driving rod 22 is first driven to move by the push plate 23, and then the driving rod 22 drives the rotating tube 21 to rotate under the action of the spiral block 221 and the spiral groove 211, the rotating tube 21 rotates to drive the gear 26 to rotate, the gear 26 rotates to drive the rack 25 to move, and the movement of the rack 25 can drive the slider 181 to move; in addition, when the driving rod 22 drives the rotating tube 21 to rotate, the driving rod 22 will move outward from the through hole 24, and when the driving rod 22 moves to make the limit plate 28 align with the limit groove 222, at this time, the second reset block 42 drives the limit plate 28 to be inserted into the limit groove 222 under the action of the second reset spring 43, so that the driving rod 22 can be automatically locked, and then the slider 181 can be automatically locked; in summary, the set driving mechanism 2 is convenient for automatically locking the slider 181.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bronchoscope biopsy forceps, comprising a gripping rod (1), a hose (11), a U-shaped mounting frame (12), a connecting shaft (13), a circular ring (14), a connecting plate (15), a sampling spoon (151), a shearing rod (16), an arc plate (161), a first spring (17), an assembly groove (18), a slider (181) and two connecting ropes (19), characterized in that: A driving mechanism (2) for driving the slider (181) to move is installed in the assembly groove (18), and the driving mechanism (2) comprises a rotating tube (21) rotatably connected to the side wall of the assembly groove (18), a driving rod (22) arranged in the rotating tube (21), and a push plate (23) installed at one end of the driving rod (22); a through hole (24) for the driving rod (22) to pass through is provided on the side wall of the assembly groove (18), a plurality of spiral blocks (221) are fixedly connected to the side wall of the driving rod (22), a plurality of spiral grooves (211) are provided on the inner wall of the rotating tube (21), and the spiral blocks (221) are matched with the spiral grooves (211) in a one-to-one correspondence; a first reset component (3) for resetting the driving rod (22) is installed in the assembly groove (18); A rack (25) is fixedly connected to the bottom of the slider (181), a gear (26) is fixedly connected to the side wall of the rotating tube (21), and the gear (26) is meshed with the rack (25); a connecting tube (27) is installed on the outer wall of the assembly groove (18), and the inner wall of the connecting tube (27) is slidably connected to a limiting plate (28); a limiting groove (222) is provided on the side wall of the driving rod (22), and a first inclined surface (281) is provided at one end of the limiting plate (28) close to the driving rod (22) and is inserted into the limiting groove (222); a second resetting component (4) for resetting the limiting plate (28) is installed on the inner wall of the connecting tube (27), and a pulling component (5) for separating the limiting plate (28) from the limiting groove (222) is installed on the outer wall of the holding rod (1).

2. A bronchoscopic biopsy forceps according to claim 1, characterized in that: The first reset assembly (3) comprises a first reset spring (31) fixed to the inner wall of the assembly groove (18) and a first reset block (32) fixed to one end of the first reset spring (31); the first reset block (32) is fixed to the side wall of the driving rod (22).

3. A bronchoscopic biopsy forceps according to claim 1, characterized in that: The second reset assembly (4) comprises a connecting groove (41) provided on the inner wall of the connecting tube (27), a second reset block (42) slidably connected to the connecting groove (41), and a second reset spring (43) fixedly connected to one side of the second reset block (42); one end of the second reset spring (43) away from the second reset block (42) is fixedly connected to the inner wall of one end of the connecting groove (41); when the limiting plate (28) is separated from the limiting groove (222), the second reset spring (43) is in a compressed state.

4. A bronchoscopic biopsy forceps according to claim 1, characterized in that: The pulling assembly (5) comprises a moving tube (51) slidably connected to the outer wall of the gripping rod (1) and a connecting rod (52) fixedly connected to one end of the moving tube (51) close to the limiting plate (28); the outer wall of the moving tube (51) is provided with anti-slip grooves, and one end of the connecting rod (52) away from the moving tube (51) is fixedly connected to one end of the limiting plate (28) away from the driving rod (22).

5. A bronchoscopic biopsy forceps according to claim 1, characterized in that: The side wall of the assembly groove (18) is provided with an observation hole (183), a transparent plate (184) is installed in the observation hole (183), and the inner wall of the assembly groove (18) is provided with a cleaning mechanism (6) for cleaning the inner side of the transparent plate (184).

6. A bronchoscopic biopsy forceps according to claim 5, characterized in that: The cleaning mechanism (6) comprises a fixed plate (61) fixedly connected to the inner wall of the assembly groove (18), a guide rod (62) slidably connected to the fixed plate (61), a cleaning brush (63) fixedly connected to the top of the guide rod (62), and a baffle (64) fixedly connected to the bottom of the guide rod (62); a second spring (65) is fixedly connected to the top of the baffle (64), and one end of the second spring (65) away from the baffle (64) is fixedly connected to the bottom of the fixed plate (61); a push rod (66) is fixedly connected to the top of the sliding block (181), and the push rod (66) abuts against the top of the cleaning brush (63).

7. A bronchoscopic biopsy forceps according to claim 4, characterized in that: A collecting cylinder (7) is installed at the bottom of the holding rod (1), an annular groove (71) is provided at the top of the collecting cylinder (7), an annular plate (72) is fixedly connected to the bottom of the holding rod (1), the annular plate (72) is plugged into the annular groove (71), and a plurality of fixing mechanisms (8) for fixing the annular plate (72) are installed in the annular groove (71).

8. A bronchoscopic biopsy forceps according to claim 7, characterized in that: Each set of the fixing mechanisms (8) comprises a through hole (81) provided on one side of the annular groove (71) and an insert block (82) slidably connected to the through hole (81); a groove (83) is provided on the side wall of the annular plate (72); a second inclined surface (821) is provided at one end of the insert block (82) close to the groove (83) and is inserted into the groove (83); a sliding groove (811) is provided at the bottom of the through hole (81); and a sliding groove (811) is slidably connected to the insert block (82) in the insert block (82). There is a third reset block (84), the third reset block (84) is fixed to the bottom of the plug block (82), a third reset spring (85) is fixed to one side of the third reset block (84), one end of the third reset spring (85) away from the third reset block (84) is fixed to the inner wall of one end of the slide groove (811), and a pusher (9) for separating the plug block (82) from the groove (83) is installed at one end of the movable tube (51) close to the collecting cylinder (7).

9. A bronchoscopic biopsy forceps according to claim 8, characterized in that: The pushing member (9) comprises a push ring (91) fixedly connected to one end of the moving tube (51) close to the collecting tube (7); a connecting block (92) is fixedly connected to the top of the insert block (82); a third inclined surface (921) is provided at one end of the connecting block (92) close to the push ring (91); and the third inclined surface (921) matches the side wall of the push ring (91).

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