Pathological sampling knife

The magnetic tail and rotating component design solves the problem of loose and falling pathological sampling blades, enabling stable installation and safe replacement of blades, and reducing the safety risks to operators.

CN223756356UActive Publication Date: 2026-01-02BEILUN DISTRICT PEOPLES HOSPITAL OF NINGBO CITY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520029147.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2026-01-02
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

The blades of existing pathological sampling scalpel handles are prone to loosening, which can easily injure operators during installation, and can also cause cuts when the blades fall.

Method used

It adopts a magnetic tail and rotating component design. The control component pushes the stop to separate the blade holder, and the rotating component rotates the blade holder to facilitate the installation and replacement of blades. The magnetic tail picks up fallen blades to prevent them from loosening and falling.

Benefits of technology

It improves the stability of blade installation, reduces the risk of accidental injury, prevents cuts caused by blades falling, and enhances operational safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223756356U_ABST
    Figure CN223756356U_ABST
Patent Text Reader

Abstract

The utility model provides a pathological sampling knife which comprises a knife handle and a blade. A knife holder is fixedly arranged on one side of the knife handle, a knife clamp is connected into the knife holder in a clamped mode, a blade is connected into the knife clamp in a clamped mode, a rotating assembly for rotating the knife clamp is arranged on one side of the knife clamp, a check block for limiting the knife clamp is connected to one side of the bottom end of the knife clamp in a clamped mode, and a convex shell is fixedly arranged on one side of the top end of the knife holder. A control assembly for controlling horizontal displacement of the stop block is arranged in the convex shell, and a magnetic suction type tail part is mounted on the other side of the knife handle; the control assembly pushes the stop block to be separated from the cutter holder, the cutter holder can be rotated through the rotating assembly, the cutter holder can be taken out from the interior of the cutter holder, the operation space is increased, a blade can be conveniently clamped through the cutter holder, the blade does not need to be inserted and fixed through a screw, and the cutter holder is rotated into the cutter holder and the control assembly is loosened. The control assembly can push the check block to reset, the check block can limit the tool holder, and the blade is not prone to loosening.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, specifically, pathological sampling knife. BACKGROUND

[0002] The pathological section is a kind of thin slice made of pathological tissue or organ, is used to observe the specimen of cell and tissue morphological structure change under microscope, it is the important material of pathological examination, through the observation of pathological section, doctor can determine the nature (such as inflammation, tumor etc.), type, degree and range of pathological change and many key information, sampling knife is a kind of pathological sampling tool specially used for cutting the tissue block of immunohistochemical staining, is composed of handle and blade.

[0003] The pathological sampling knife handle currently often uses "insertion type" to install blade, uses gauze and other auxiliary tools to grab blade, inserts blade clamp, this kind of installation mode is easy to be hurt in installation, and blade clamp is loose after long-term repeated use, blade is not tightly clamped, blade is easy to fall off and hurt operator during sampling, blade falls off in the table from blade clamp, and operator is difficult to pick up blade, and it is also easy to cause cut and other occupational exposure. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide pathological sampling knife, and blade is not easy to loosen, and operator is not easy to be hurt.

[0005] The utility model provides pathological sampling knife, including handle and blade, one side of handle is fixedly provided with tool apron, the inside of tool apron is clamped and is connected with blade holder, the inside of blade holder is clamped and is connected with blade, one side of blade holder bottom is clamped and is connected with the stopper that carries out location to it, one side of tool apron top is fixedly provided with the convex shell, the inside of convex shell is equipped with the control assembly that controls the horizontal displacement of stopper, the other side of handle is installed magnetic type tail.

[0006] The utility model passes through the control assembly and pushes stopper after adopting above-mentioned structure, makes it separate from blade holder, can pass through the rotation of blade holder and is taken out from the inside of tool apron, increases the operation space, is convenient for the blade clamping of blade holder, need not insert blade and be fixed by screw, by the rotation of blade holder to tool apron, loosens control assembly, control assembly can push stopper reset, stopper can position blade holder, and blade holder can be tightly clamped with tool apron, and blade is not easy to loosen, and operator is not easy to be hurt in installation process, and blade can be prevented from loosening and hurting operator in the process of sampling, when blade falls off to the table in the process of replacing blade, the other side of handle magnetic type tail can attract blade, avoid the risk of cut caused by blade.

[0007] In a possible implementation, the rotating assembly comprises a rivet, a sleeve is sleeved on the surface of the rivet, the sleeve is fixedly connected with one side of the tool holder, and a rivet head is fixedly arranged at both ends of the rivet; the rivet head can prevent the rivet from falling off, the rivet can support the tool holder through the sleeve, and the tool holder can make a circumferential movement along the rivet; the tool holder can be rotated while being supported.

[0008] In a possible implementation, a through hole is formed in one side of the tool holder, the sleeve is coaxial with the through hole, the rivet is connected with the through hole in a penetrating manner, and the diameter of the rivet head is greater than the diameter of the through hole; the rivet can be arranged through the through hole, the rivet can be conveniently assembled, and the rivet can be supported.

[0009] In a possible implementation, a mounting opening is formed in the bottom end of the tool holder, the blade is clampedly connected with the inside of the mounting opening, and protrusions are fixedly arranged at the top of both sides of the blade; the blade can be mounted through the mounting opening, the blade can protrude out of the tool holder, and the protrusions on both sides of the blade can limit the blade to prevent the blade from sliding off through the mounting opening.

[0010] In a possible implementation, a mounting groove is formed in the other side of the tool handle, the magnetic tail is fixedly connected with the inside of the mounting groove, and a protrusion is fixedly arranged at the bottom of the other side of the tool handle; the magnetic tail can be mounted through the mounting groove, the blade can be attracted by the magnetic tail when the blade falls on the table top, the risk of cutting caused by the blade is avoided, the anti-falling capability of the tool handle is improved through the protrusion, and the tool handle is not easy to fall off from the hand during holding of the tool handle.

[0011] In a possible implementation, the control assembly comprises a support rod, the support rod is fixedly connected with the inside of the convex shell, a sliding sleeve is slidably connected with the surface of the support rod, a sliding block is fixedly arranged on the surface of the sliding sleeve, the bottom end of the sliding block is fixedly connected with the top end of the stopper, a slide is formed in the other side of the tool holder, the sliding block and the stopper are slidably connected with the inside of the slide, and a support spring for supporting the sliding block is sleeved on the surface of the support rod; the support rod can limit the support spring and support and guide the sliding block, the support spring can support the sliding block, the sliding block can be clamped with one side of the bottom end of the tool holder under the action of the support force of the support spring, so that the tool holder can be fixed, the tool holder can be prevented from loosening and falling off, and the stability of the tool holder can be maintained.

[0012] In a possible implementation, one end of the support rod is fixedly provided with a stop disc, the stop disc is located outside the convex shell, one side of the stop disc is provided with a hexagonal groove, one side of the convex shell is provided with a mounting hole for penetrating and connecting with the support rod, the other end of the support rod is fixedly provided with a screw rod, and one side of the tool handle is provided with a threaded groove for threadedly connecting with the screw rod; the support rod can be inserted through the mounting hole, the stop disc can be rotated through the hexagonal groove, the screw rod can be rotated into the threaded groove, the support rod is convenient to install, the stop disc can be rotated in the reverse direction through the hexagonal groove, the screw rod can be loosened, and the support rod is convenient to take out from the inside of the convex shell.

[0013] In a possible implementation, the middle part of the top end of the sliding block is fixedly provided with a push plate, the top end of the convex shell is clampingly connected with a cover, the surface of the cover is provided with a plate groove, and the push plate is slidingly connected with the inside of the plate groove; the push plate is convenient to push the sliding block to move horizontally, the cover can protect the inside of the convex shell, the cover is convenient to guide the push plate through the plate groove, and the horizontal movement of the push plate can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is one of structural schematic diagrams of the utility model.

[0015] Figure 2 It is the second structural schematic diagram of the utility model.

[0016] Figure 3 It is a sectional structure schematic diagram of the utility model.

[0017] Figure 4 It is the A place of the utility model Figure 3 enlarged structure schematic diagram.

[0018] Figure 5 It is the structural schematic diagram of the tool holder of the utility model.

[0019] Figure 6 It is the exploded structural schematic diagram of the tool holder of the utility model.

[0020] Figure 7 It is the structural schematic diagram of the inside of the convex shell of the utility model.

[0021] Among them:

[0022] 1-tool handle; 2-magnetic tail; 3-tool holder; 4-tool clamp; 5-blade; 6-rotation assembly; 601-rivets; 602-sleeve; 603-riveting head; 7-mounting port; 8-protrusion; 9-through hole; 10-slide; 11-stop block; 12-convex shell; 13-cover; 14-plate groove; 15-control assembly; 1501-support rod; 1502-sliding sleeve; 1503-sliding block; 1504-support spring; 1505-push plate; 1506-stop disc; 1507-screw rod; 16-mounting hole. DETAILED DESCRIPTION

[0023] First, those skilled in the art should understand that the embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments as needed in order to adapt to specific application occasions.

[0024] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0026] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0027] Reference Figures 1-7As shown, the pathological biopsy knife disclosed by the embodiment of the application comprises a handle 1 and a blade 5; one side of the handle 1 is fixedly provided with a blade seat 3, the blade seat 3 is internally and clampingly connected with a blade clamp 4, the blade clamp 4 is internally and clampingly connected with the blade 5, one side of the blade clamp 4 is provided with a rotating assembly 6 for rotating the blade clamp 4, one side of the bottom end of the blade clamp 4 is clampingly connected with a stop block 11 for limiting the blade clamp 4, one side of the top end of the blade seat 3 is fixedly provided with a convex shell 12, the inside of the convex shell 12 is provided with a control assembly 15 for controlling the horizontal displacement of the stop block 11, and the other side of the handle 1 is mounted with a magnetic tail 2; in use, the stop block 11 is horizontally moved by the control assembly 15, so that the stop block 11 is retracted, the stop block 11 stops limiting the blade clamp 4, then the blade clamp 5 is rotated by the rotating assembly 6 and taken out from the inside of the blade seat 3, the operation space is increased, the blade 5 is placed into the inside of the blade clamp 4, then the blade clamp 4 is rotated into the inside of the blade seat 3, finally the stop block 11 is reset, the stop block 11 can prevent the blade clamp 4 from loosening, the blade clamp 4 and the blade seat 3 can clamp the blade 5, without inserting the blade 5 and fixing it by screws, the operator is not easy to be injured during the installation process, and the blade 5 is prevented from loosening and injuring the operator during the process of taking the material by the blade 5, the blade 5 is pushed by the control assembly 15 and the blade clamp 4 is loosened, so that the blade 5 can be quickly replaced, when the blade 5 is accidentally dropped onto the table top during the process of replacing the blade 5, the magnetic tail 2 on the other side of the handle 1 can suck the blade 5, thereby avoiding the risk of cuts caused by the contact between the human body and the blade 5.

[0028] Referring again to Figures 5-6 As shown, the rotating assembly 6 comprises a rivet 601, the surface of the rivet 601 is sleeved with a sleeve 602, the sleeve 602 is fixedly connected with one side of the blade clamp 4, both ends of the rivet 601 are fixedly provided with a rivet head 603, one side of the blade seat 3 is provided with a through hole 9, the sleeve 602 is coaxial with the through hole 9, the rivet 601 is penetratingly connected with the through hole 9, and the diameter of the rivet head 603 is greater than the diameter of the through hole 9; the rivet 601 can be arranged through the through hole 9, which is convenient for assembly, the rivet 601 can be prevented from falling off by the rivet head 603, the rivet 601 can provide support between the blade seat 3 and the blade clamp 4 through the sleeve 602, so that the blade clamp 4 can make circumferential motion along the rivet 601, thereby being able to open and close the blade clamp 4.

[0029] Referring again to Figures 5-7As shown, the control assembly 15 comprises a support rod 1501 fixedly connected with the inside of the convex shell 12, the surface of the support rod 1501 is slidingly connected with a sliding sleeve 1502, the surface of the sliding sleeve 1502 is fixedly provided with a sliding block 1503, the bottom end of the sliding block 1503 is fixedly connected with the top end of the stop block 11, the other side of the knife seat 3 is provided with a slide 10, the sliding block 1503 and the stop block 11 are slidingly connected with the inside of the slide 10, the surface of the support rod 1501 is sleeved with a supporting spring 1504 supporting the sliding block 1503, one end of the support rod 1501 is fixedly provided with a stop disc 1506, the stop disc 1506 is located outside the convex shell 12, one side of the stop disc 1506 is provided with a hexagonal groove, one side of the convex shell 12 is provided with a mounting hole 16 penetratingly connected with the support rod 1501, the other end of the support rod 1501 is fixedly provided with a screw rod 1507, one side of the handle 1 is provided with a threaded groove threadedly connected with the screw rod 1507, the middle of the top end of the sliding block 1503 is fixedly provided with a push plate 1505, the top end of the convex shell 12 is clampingly connected with a cover 13, the surface of the cover 13 is provided with a plate groove 14, the push plate 1505 is slidingly connected with the inside of the plate groove 14; the support rod 1501 can limit the supporting spring 1504 and support and guide the sliding block 1503, the push plate 1505 pushes the sliding block 1503, which can compress the supporting spring 1504, the sliding block 1503 can drive the stop block 11 to contract, the stop block 11 can be separated from the knife clamp 4, so that the knife clamp 4 can be rotated and taken out from the inside of the knife seat 3, which can increase the operation space and replace the blade 5, after the blade 5 is replaced, the knife clamp 4 is rotated to the inside of the knife seat 3, the push plate 1505 is loosened, the supporting spring 1504 can push the sliding block 1503 to reset, so that the stop block 11 is clamped with one side of the bottom end of the knife clamp 4, so that the knife clamp 4 can be fixed, the knife clamp 4 and the knife seat 3 can clamp the blade 4, which can prevent the blade 5 from loosening, the support rod 1501 is rotated through the hexagonal groove, the screw rod 1507 is rotated out of the threaded groove of the handle 1, the support rod 1501 is horizontally pulled to be quickly disassembled, after the support rod 1501 stops supporting the sliding block 1503, the stop block 11 can fall through the slide 10, which is convenient to take down, the supporting spring 1504 can be taken out by opening the cover 13.

[0030] Referring again to Figure 6 As shown, the bottom end of the knife clamp 4 is provided with a mounting port 7, the blade 5 is clampingly connected with the inside of the mounting port 7, and the top of the two sides of the blade 5 is fixedly provided with a protrusion 8; the mounting port 7 can install the blade 5, and the protrusions 8 on the two sides of the blade 5 can limit the blade 5, which can prevent the blade 5 from falling through the mounting port 7.

[0031] Referring again to Figure 3As shown, the other side of the handle 1 is provided with a mounting groove, the magnetic tail 2 is fixedly connected with the inside of the mounting groove, and the bottom of the other side of the handle 1 is fixedly provided with a protrusion; after the magnetic tail 2 is installed through the mounting groove, the operator holds the handle 1, the magnetic tail 2 is attached to the blade 5 falling on the table top, the blade 5 can be picked up, and the handle 1 can improve the anti-falling ability through the protrusion; in the process of holding the handle 1, the handle 1 is not easy to fall off from the hand.

[0032] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A biopsy punch comprising a handle (1) and a punch blade (5); characterized in that: One side of the tool holder (1) is fixedly provided with a tool seat (3), the inside of the tool seat (3) is clampedly connected with a tool clamp (4), the inside of the tool clamp (4) is clampedly connected with a tool blade (5), one side of the tool clamp (4) is provided with a rotating assembly (6) for rotating, one side of the bottom end of the tool clamp (4) is clampedly connected with a stop block (11) for limiting, one side of the top end of the tool seat (3) is fixedly provided with a convex shell (12), the inside of the convex shell (12) is provided with a control assembly (15) for controlling the horizontal displacement of the stop block (11), the other side of the tool holder (1) is mounted with a magnetic type tail (2).

2. The biopsy knife of claim 1 wherein: The rotating assembly (6) comprises a rivet (601), the surface of the rivet (601) is sleeved with a sleeve (602), one side of the sleeve (602) is fixedly connected with the tool clamp (4), and both ends of the rivet (601) are fixedly provided with a press-in head (603).

3. The biopsy knife of claim 2 wherein: One side of the tool seat (3) is provided with a through hole (9), the sleeve (602) is coaxial with the through hole (9), the rivet (601) is penetratingly connected with the through hole (9), and the diameter of the press-in head (603) is greater than that of the through hole (9).

4. The biopsy knife of claim 1 wherein: The bottom end of the tool clamp (4) is provided with a mounting port (7), the inside of the tool blade (5) is clampedly connected with the mounting port (7), and the top of both sides of the tool blade (5) is fixedly provided with a convex (8).

5. The biopsy knife according to claim 1, wherein: The other side of the tool holder (1) is provided with a mounting groove, the magnetic type tail (2) is fixedly connected with the inside of the mounting groove, and the bottom of the other side of the tool holder (1) is fixedly provided with a convex block.

6. The biopsy knife according to claim 1, wherein: The control assembly (15) comprises a supporting rod (1501), the supporting rod (1501) is fixedly connected with the inside of the convex shell (12), the surface of the supporting rod (1501) is slidingly connected with a sliding sleeve (1502), the surface of the sliding sleeve (1502) is fixedly provided with a sliding block (1503), the bottom end of the sliding block (1503) is fixedly connected with the top end of the stop block (11), the other side of the tool seat (3) is provided with a sliding channel (10), and the sliding block (1503) and the stop block (11) are slidingly connected with the inside of the sliding channel (10). The surface of the supporting rod (1501) is sleeved with a supporting spring (1504) for supporting the sliding block (1503).

7. The biopsy knife according to claim 6, wherein: One end of the supporting rod (1501) is fixedly provided with a stop disc (1506), the stop disc (1506) is located outside the convex shell (12), one side of the stop disc (1506) is provided with a hexagonal groove, one side of the convex shell (12) is provided with a mounting hole (16) penetratingly connected with the supporting rod (1501), the other end of the supporting rod (1501) is fixedly provided with a screw rod (1507), and one side of the tool holder (1) is provided with a threaded groove threadedly connected with the screw rod (1507).

8. The biopsy knife according to claim 6, wherein: The middle of the top end of the sliding block (1503) is fixedly provided with a push plate (1505), the top end of the convex shell (12) is clampedly connected with a clamping cover (13), the surface of the clamping cover (13) is provided with a plate groove (14), and the push plate (1505) is slidingly connected with the inside of the plate groove (14).