A uterine cavity tissue cutting biopsy device facilitating sampling

Abstract

The present application relates to the technical field of medical devices, and particularly relates to a uterine cavity tissue cutting biopsy device facilitating sampling, comprising a cutter body and a negative pressure sampling bottle detachably connected with the cutter body, wherein the sample cut by the cutter body enters the negative pressure sampling bottle based on negative pressure, and the negative pressure sampling bottle is provided with a negative pressure regulator. The uterine cavity tissue cutting biopsy device facilitating sampling can synchronize the cutting and sample collection, and the sampling bottle can be quickly taken down without disconnecting the negative pressure device, and the negative pressure can be quickly drawn when needed, so that the uterine cavity tissue cutting biopsy device facilitating sampling can quickly reach the required negative pressure value, and has the advantages of simple structure, low cost, no noise, no vibration, and convenient operation for doctors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a uterine cavity tissue cutting biopsy device facilitating sampling. BACKGROUND

[0002] In clinical practice, when treating diseased tissue, it is generally necessary to remove the diseased tissue from the patient's body and perform a biopsy of the diseased tissue. These two processes are generally performed separately.

[0003] For endometrial polyps and uterine fibroids in the uterine cavity, etc., generally a small amount of cutting is performed multiple times, and a single sample is taken. Generally, there is no sample collection device, and it cannot be determined whether a single sample can be effectively taken. Even if a sampling device is provided, after the cutting is completed, the negative pressure device needs to be closed, and the air pressure needs to be restored before the sampling device can be removed. Such operation is very inconvenient and time-consuming. SUMMARY

[0004] In view of the defects of the existing uterine cavity tissue cutting biopsy, the present application provides a uterine cavity tissue cutting biopsy device facilitating sampling, which can synchronize cutting and sample collection, and quickly remove the sampling bottle without disconnecting the negative pressure device.

[0005] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0006] A uterine cavity tissue cutting biopsy device facilitating sampling includes a cutter body and a negative pressure sampling bottle detachably connected to the cutter body. The sample cut by the cutter body enters the negative pressure sampling bottle based on negative pressure. The negative pressure sampling bottle has a negative pressure regulator. The negative pressure regulator can adjust the air pressure in the negative pressure sampling bottle, quickly remove the negative pressure state, facilitate the removal of the sampling bottle, and quickly restore the negative pressure state when needed.

[0007] As a preferred embodiment, the negative pressure regulator includes an outer cylinder and an inner cylinder. The outer cylinder is connected to the negative pressure sampling bottle, and the inner cylinder is arranged in the outer cylinder and rotatably and sealingly connected to the outer cylinder. The structure is simple, convenient, reliable, noiseless, and low in cost.

[0008] As a preferred embodiment, the outer cylinder is fixedly connected to the negative pressure sampling bottle, and a through hole is formed in the connection. The inner cylinder is provided with an axial air hole and an inner cylinder slot hole. The air hole and the inner cylinder slot hole are communicated. A half slot is formed in the free end of the outer cylinder, and a handle is arranged at the free end of the inner cylinder. The handle drives the inner cylinder to move within the range of the half slot to control the communication and closure of the inner cylinder slot hole and the outer cylinder through hole. When the inner cylinder slot hole and the outer cylinder through hole are communicated, air enters the negative pressure sampling bottle through the air hole, the inner cylinder slot hole, and the outer cylinder through hole to remove the negative pressure state. When the inner cylinder slot hole and the outer cylinder through hole are closed and not communicated, the negative pressure can be quickly removed to reach the required negative pressure value.

[0009] As preferred, the inner cylinder side wall is provided with a first sealing groove, and a first sealing ring is arranged in the sealing groove, and the handle is rotated to a corresponding position to seal the outer cylinder through hole. The outer cylinder through hole sealing can ensure that the negative pressure sampling bottle is in a sealed state, and quickly reaches and maintains the negative pressure value when needed.

[0010] As preferred, the inner cylinder side wall is provided with a first sealing groove, and a first sealing ring is arranged in the sealing groove, and the handle is rotated to a corresponding position to seal the outer cylinder through hole. The outer cylinder through hole sealing can ensure that the negative pressure sampling bottle is in a sealed state, and quickly reaches and maintains the negative pressure value when needed.

[0011] As preferred, the inner cylinder side wall is provided with a first sealing groove, and a first sealing ring is arranged in the sealing groove, and the handle is rotated to a corresponding position to seal the outer cylinder through hole. The outer cylinder through hole sealing can ensure that the negative pressure sampling bottle is in a sealed state, and quickly reaches and maintains the negative pressure value when needed.

[0012] As preferred, the negative pressure sampling bottle is connected to the negative pressure device through a negative pressure pipe.

[0013] As preferred, the negative pressure sampling bottle is provided with a sampling inner container, and the outer wall of the sampling inner container is a percolation outer wall. The sampling can be effectively taken.

[0014] As preferred, the cutter body includes an outer pipe, an inner pipe sleeved in the outer pipe, an inner pipe pushing and rebounding mechanism connected with the inner pipe, and a negative pressure collecting mechanism. One end of the outer pipe is provided with a cutting sampling port, and the end of the inner pipe is provided with a cutting head. The inner pipe pushing and rebounding mechanism drives the inner pipe to move back and forth in the outer pipe in the axial direction, so that the sample generated by the cutting head cutting back and forth in the cutting sampling port is collected to the negative pressure collecting mechanism.

[0015] The uterine cavity tissue cutting biopsy device for convenient sampling of the present application can synchronize cutting and sample collection, quickly take down the sampling bottle without disconnecting the negative pressure device, quickly draw negative pressure when needed, and quickly reach the required negative pressure value. The uterine cavity tissue cutting biopsy device for convenient sampling has the advantages of simple structure, low cost, no noise, no vibration, and convenient operation of doctors. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic diagram of an embodiment of the present application.

[0017] Figure 2 The figure is a structural schematic diagram of a negative pressure sampling bottle of an embodiment of the present application.

[0018] Figure 3 The figure is a structural schematic diagram of a negative pressure sampling bottle of an embodiment of the present application.

[0019] Figure 4 The figure is a structural schematic diagram of a negative pressure sampling bottle of an embodiment of the present application. Figure 3 The figure is a left view schematic diagram.

[0020] Figure 5 The figure is a structural schematic diagram of an inner cylinder of an embodiment of the present application.

[0021] Figure 6 for Figure 5 A left-side view diagram.

[0022] Figure 7 for Figure 1 Enlarged schematic diagram of part A.

[0023] Figure 8 for Figure 1 Enlarged schematic diagram of part B.

[0024] In the diagram: 1. Cutter body; 2. Negative pressure sampling bottle; 3. Negative pressure regulator; 4. Outer cylinder; 5. Inner cylinder; 6. Outer cylinder through hole; 7. Vent hole; 8. Inner cylinder slot; 9. Half slot; 10. Handle; 11. First sealing ring; 12. Second sealing ring; 13. Limiting device; 14. Outer tube; 15. Inner tube; 16. Inner tube push-back mechanism; 17. Negative pressure collection mechanism; 18. Cutting sampling port; 19. Cutting head; 20. Push handle; 25. Negative pressure tube; 26. Sampling inner liner. Detailed Implementation

[0025] The following is combined with Figure 1 — Figure 8 The present invention will be further described with reference to specific embodiments.

[0026] A convenient uterine tissue biopsy device, as shown in the attached image. Figure 1 As shown, it includes a cutter body 1 and a negative pressure sampling bottle 2 detachably connected to the cutter body 1. The sample cut by the cutter body 1 enters the negative pressure sampling bottle 2 based on negative pressure. The negative pressure sampling bottle 2 has a negative pressure regulator 3.

[0027] As attached Figure 2 As shown, the negative pressure regulator 3 includes an outer cylinder 4 and an inner cylinder 5. The outer cylinder 4 is connected to the negative pressure sampling bottle 2, and the inner cylinder 5 is placed inside the outer cylinder 4 and is rotatably and sealingly connected to the outer cylinder 4.

[0028] As attached Figure 3 , 4 As shown in Figures 5 and 6, the outer cylinder 4 is fixedly connected to the negative pressure sampling bottle 2, and an outer cylinder through hole 6 is opened at the connection. The inner cylinder 5 has an axial vent hole 7, and an inner cylinder groove hole 8 is opened on the side wall of the inner cylinder 5. The vent hole 7 communicates with the inner cylinder groove hole 8. A half groove 9 is opened at the free end of the outer cylinder 4, and a handle 10 is provided at the free end of the inner cylinder 5. The handle 10 drives the inner cylinder 5 to move within the range of the half groove 9 to control the connection and closure of the inner cylinder groove hole 8 and the outer cylinder through hole 6.

[0029] The inner cylinder 5 has a first sealing groove on its side wall, and the first sealing ring 11 is placed in the sealing groove. The handle 10 is rotated to the corresponding position to seal the outer cylinder through hole 6.

[0030] The inner cylinder 5 is provided with a radial second sealing groove on the outer wall, and the second sealing ring 12 is arranged in the second sealing groove to seal the outer cylinder 4 and the inner cylinder 5.

[0031] The outer wall of the outer cylinder 4 and the outer wall of the inner cylinder 5 are provided with a limiting device 13.

[0032] As shown in the accompanying drawings, the negative pressure sampling bottle 2 is connected to the negative pressure device through the negative pressure pipe 25. Figure 1

[0033] The sampling inner container 26 is arranged in the negative pressure sampling bottle 2, and the outer wall of the sampling inner container 26 is a percolation outer wall.

[0034] As shown in the accompanying drawings, the cutter body 1 comprises an outer pipe 14, an inner pipe 15 sleeved in the outer pipe 14, an inner pipe pushing and rebounding mechanism 16 connected with the inner pipe 15, and a negative pressure collecting mechanism 17. Figure 1 As shown in the accompanying drawings, the outer pipe 14 is provided with a cutting sampling port 18 on one end side wall, the inner pipe 15 is provided with a cutting head 19 on the end head, and the inner pipe pushing and rebounding mechanism 16 drives the inner pipe 15 to move back and forth axially in the outer pipe 14, so that the sample generated by the cutting head 19 cutting back and forth at the cutting sampling port 18 is collected to the negative pressure collecting mechanism 17. Figure 7 Figure 8 The negative pressure collecting mechanism 17 comprises a negative pressure sampling bottle 2 and a negative pressure pipe 25 connected to the negative pressure device.

[0035] In use, one end of the outer pipe 14 is placed in the body and attached to the tissue part to be cut off, the inner pipe 15 is axially moved by pulling the pushing handle 20, the cutting head 19 of the inner pipe 15 cuts off the tissue through the cutting sampling port 18, the negative pressure device (not shown in the figure) generates negative pressure, the cut-off tissue is sucked in through the inner pipe 15, the solid tissue can be stored in the sampling inner container 26, and other liquids can flow out through the negative pressure pipe 25.

[0036] The negative pressure device is closed, the handle 10 is rotated to the position where the inner cylinder slot hole 8 is in communication with the outer cylinder through hole 6, air enters the negative pressure sampling bottle 2 through the air vent hole 12, the inner cylinder slot hole 8 and the outer cylinder through hole 6, the negative pressure state is removed, the negative pressure sampling bottle 2 is removed, and sampling is successful. Then the negative pressure sampling bottle 2 is clamped on the cutter body 1, the handle 10 is rotated to the position where the inner cylinder slot hole 8 is not in communication with the outer cylinder through hole 6, and the negative pressure device is opened to quickly reach the negative pressure state. The whole process does not need to disconnect the negative pressure device, and sampling is convenient and fast.

[0037] The above only describes the preferred embodiments of the present application, and is not used to limit the implementation range of the present application. Any equivalent changes and modifications made according to the content of the present application should be within the technical scope of the present application.​​

Claims

1. A convenient uterine tissue cutting biopsy device, comprising a cutting body (1) and a negative pressure sampling bottle (2) detachably connected to the cutting body (1), wherein the sample cut by the cutting body (1) enters the negative pressure sampling bottle (2) based on negative pressure, characterized in that: The negative pressure sampling bottle (2) has a negative pressure regulator (3), which includes an outer cylinder (4) and an inner cylinder (5). The outer cylinder (4) is connected to the negative pressure sampling bottle (2), and the inner cylinder (5) is placed inside the outer cylinder (4) and is rotatably and sealed to the outer cylinder (4). The outer cylinder (4) is fixedly connected to the negative pressure sampling bottle (2), and an outer cylinder through hole (6) is opened at the connection. The inner cylinder (5) has an axial vent hole (7), and an inner cylinder groove is opened on the side wall of the inner cylinder (5). 8), the vent (7) is connected to the inner cylinder slot (8), the outer cylinder (4) has a half slot (9) at its free end, and the inner cylinder (5) has a handle (10) at its free end. The handle (10) drives the inner cylinder (5) to move within the range of the half slot (9) to control the connection and closure of the inner cylinder slot (8) and the outer cylinder through hole (6). The outer wall of the inner cylinder (5) has a radial second sealing groove, and the second sealing ring (12) is placed in the second sealing groove to seal the connection between the outer cylinder (4) and the inner cylinder (5).

2. The uterine tissue cutting biopsy device for easy sampling according to claim 1, characterized in that: The inner cylinder (5) has a first sealing groove on its side wall, and the first sealing ring (11) is placed in the sealing groove. The handle (10) is rotated to the corresponding position to seal the outer cylinder through hole (6).

3. The uterine tissue cutting biopsy device for easy sampling according to claim 1, characterized in that: A limiting device (13) is provided on the inner wall of the outer cylinder (4) and the outer wall of the inner cylinder (5).

4. The uterine tissue cutting biopsy device for easy sampling according to claim 1, characterized in that: The negative pressure sampling bottle (2) is connected to the negative pressure device through the negative pressure tube (25).

5. The uterine tissue cutting biopsy device for easy sampling according to claim 1, characterized in that: The negative pressure sampling bottle (2) is provided with a sampling inner liner (26), and the outer wall of the sampling inner liner (26) is a permeation outer wall.

6. The uterine tissue cutting biopsy device for easy sampling according to claim 1, characterized in that: The cutter body (1) includes an outer tube (14), an inner tube (15) fitted inside the outer tube (14), an inner tube push-back mechanism (16) connected to the inner tube (15), and a negative pressure collection mechanism (17). The outer tube (14) has a cutting sampling port (18) on one side wall, and the inner tube (15) has a cutting head (19) at one end. The inner tube push-back mechanism (16) drives the inner tube (15) to move back and forth axially inside the outer tube (14), so that the sample generated by the cutting head (19) cutting back and forth in the cutting sampling port (18) is collected by the negative pressure collection mechanism (17).

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